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HomeMy WebLinkAboutSite Plan - Conservation (26) TOWN OF SOUTH WINDSOR INTTED I INLAND WETLANDS WATERCOURSES AND CONSERVATION APIfiChi'I6i�' APPLICATION # DATE RECEIVED South 1`flndsor INLAND VVEILFlNDS AGLI tCY/ INSTRUCTIONS CONSERVATION CorViMIMSION 1. THE APPLICATION, MAP AND PLANS MUST BE SUBMITTED IN DUPLICATE, TOGETHER WITH THE FEE SET FORTH IN THE INLAND WETLANDS, WATERCOURSES AND CONSERVATION REGULATIONS, TOWN OF SOUTH WINDSOR. (SEE REGULATIONS, SECTION VII). 2. THE SOUTH WINDSOR INLAND WETLANDS, WATERCOURSES AND CONSERVATION REGULATIONS SHOULD BE REVIEWED WITH RESPECT TO THE STANDARDS AND CRITERIA FOR APPLICATION EVALUATION. (SEE REGULATIONS, SECTIONS VII - X). 3. THE APPLICANT UNDERSTANDS THAT THIS APPLICATION IS TO BE CONSIDERED COMPLETE ONLY WHEN ALL INFORMATION AND DOCUMENTS REQUIRED BY THE AGENCY HAVE BEEN SUBMITTED. THE APPLICANT SHALL ALSO COMPLETE THE STATE FILING FORM. A. APPLICANT'S NAME: The Savings Bank of Rockville ADDRESS: 280 Talcott.ville Road, Vernon, CT 06006 PHONE: (HOME) (WORK) (860)871-1859 B. LEGAL OWNER'S NAME: The Savings Bank of Rockville ADDRESS: 280 Talcottvi le Road, Vernon CT 06066 PHONE: (HOME) (WORK) (860)871-1859 (List additional owners, addresses, and tel #'s on back of application C. IF THE APPLICANT IS NOT THE OWNER OF THE SUBJECT PROPERTY, A LETTER BY THE PROPERTY OWNER(S) AUTHORIZING THE PROPOSED REGULATED ACTIVITY SET FORTH IN THE APPLICATION MUST ACCOMPANY THIS FORM AND WILL BE PART OF THE APPLICATION. D. PROJECT NAME (if any) The Savings Bank of Rockville 1. Contact Person (if further information is needed). Mr. Joseph F. Jeamel, Jr. Phone # (work) 871-1859 Fax # 872-6756 E. THE GEOGRAPHICAL LOCATION OF THE PROPERTY WHICH IS TO BE AFFECTED BY THE PROPOSED REGULATED ACTIVITIES INCLUDING A DESCRIPTION OF THE LAND IN SUFFICIENT DETAIL TO ALLOW IDENTIFICATION OF THE PROPERTY ON THE INLAND WETLAND AND WATERCOURSES MAP. Assessor's Map # 51 Parcel 1 Zone RC F. NAMES OF ALL ABUTTING PROPERTY OWNERS: (Use separate sheet if necessary) See Attached Sheet -------------------------------------------------------------------- G. HAVE YOU NOTIFIED ALL ABUTTING PROPERTY OWNERS BY CERTIFIED LETTER THAT AN APPLICATION IS PENDING BEFORE THE AGENCY? X ** (You are required to supply a copy of the letter with the list of the names of the abutters).** H. PURPOSE AND DESCRIPTION OF ALL PROPOSED REGULATED ACTIVITY(S) INCLUDING AMOUNT AND TYPES OF FILL AND THE TIME ELEMENT INVOLVED: Site development involves addinc, clean fill to wetlands to r`reata parking & access drive areas. To begin in Spring 1999 end in fall 1999 I. A CLASS A-2 MAP OF THE PROPERTY DRAWN TO 1" = 40', SHOWING THE AREA TO BE DEVELOPED, EXTENT OF THE WETLANDS AND WATERCOURSES AFFECTED, TOPOGRAPHY, EXISTING AND PROPOSED ACTIVITIES AND NAMES AND LOCATIONS OF ADJACENT PROPERTY OWNERS MUST BE SUBMITTED. J. ACREAGE OF WETLANDS AND WATERCOURSES TO BE ALTERED: 0.537 ac. K. ACREAGE OF WETLANDS AND WATERCOURSES TO BE CREATED: 0 L. LINEAL FEET OF PROPOSED STREAM ALTERATION: 0 M. TOTAL LAND AREA OF PROJECT AND PERCENTAGE WHICH IS WETLANDS Total area = 10.98 ac. Wetland = 7.29 , 66 3% N. IDENTIFY ALL OTHER PERMITS OR APPROVALS THAT HAVE BEEN ISSUED, APPLIED FOR, OR REQUIRED WITH RESPECT TO THE PROPOSED ACTIVITY SET FORTH IN THIS APPLICATION. (These may included but not be limited to, local Planning & Zoning, Zoning Board of Appeals, D.E.P., F.E.M A., D.O.T., The Army Corps of Engineers, and any other State, Local or Federal Permits.) Local planning & zoning commission, Army Corps of Engineers, DOT Encroachment Permit 0. THE APPLICANT (OR DESIGNATED REPRESENTATIVE) HEREBY ATTESTS THAT A SIGN WILL BE POSTED AT THE FOLLOWING LOCATIONS) Frontage on Ellington Road and Frontage on Deming Street by Fuss & O'Nei 11 , Tnr_ NAME James D-CI ai r, P.F_ ON OR BEFORE THE FOLLOWING DATE: 10 days prior to scheduled meeting SIGNATURE: THESE SIGNS ��T DISPLAYED CONTINUOUSLY FOR AT LEAST TEN (10) DAYS PRIOR TO SCHEDULED MEETING (See Regulations, Section 7.3a). THE UNDERSIGNED HEREBY APPLIES FOR THE REGULATED ACTIVITIES LISTED IN PARAGRAPH H ABOVE, FOR A INLAND WETLANDS, WATERCOURSES AND CONSERVATION PERMIT FOR THE PROPERTY DESCRIBED HEREIN AND CONFIRMS THAT: 1. APPLICANT IS FAMILIAR WITH THE CURRENTLY EFFECTIVE INLAND WETLAND, WATERCOURSES AND CONSERVATION REGULATIONS OF THE TOWN OF SOUTH WINDSOR. 2. APPLICANT UNDERSTANDS THAT AT ANY TIME DURING THE REVIEW PERIOD, THE AGENCY MAY REQUIRE THE APPLICANT TO PROVIDE MORE INFORMATION ABOUT THE WETLANDS AND/OR WATERCOURSES IN QUESTION AND/OR ANY PROPOSED ACTIVITY. 3. ALL INFORMATION SUBMITTED IN THE APPLICATION FOR REVIEW SHALL BE CONSIDERED FACTUAL, OR IN THE CASE OF ANTICIPATED ACTIVITY, BINDING. A KNOWING FAILURE OF THE APPLICANT OR ANY OF HER/HIS AGENTS TO PROVIDE CORRECT INFORMATION, OR PERFORMANCE EXCEEDING THE LEVELS OF ACTIVITY ANTICIPATED, SHALL BE SUFFICIENT GROUNDS FOR REVOCATION OF ANY PERMIT UNDER THESE REGULATIONS. -� 4. BY MAKING THIS APPLICATION, THE APPLICANT GIVES PERMISSION TO THE z INLAND WETLAND, WATERCOURSES AND CONSERVATION COMMISSION D MEMBERS AND/OR ITS REPRESENTATIVE TO ENTER THE PORTIONS OF THE j PREMISES WHICH ARE SUBJECT OF THE APPLICATION FOR THE PURPOSE OF INSPECTION AND INVESTIGATION AND OTHERWISE EVALUATING THE MERITS OF THE APPLICATION BOTH BEFORE AND AFTER A FINAL DECISION HAS BEEN ISSUED. n Si Ature of Owner 7roperty Date 2� Sig tore of A pplican Date Fuss&O'Neill Inc. NOW/FORMERLY ABUTTER Map-ID N/F Abutter 50-17 General Financial Services, Inc. 8441 E. 32nd Street N. Suite 2000 Wichita, KS 67226 51-1 Mr. Richard S.Kelley 1744 Ellington Road South Windsor, CT 06074 51-47 Ms. Elizabeth Molloy 50 Deming Street South Windsor, CT 06074 87546\A 10\ABUTTER.W PD Corres. Y COPY 000 FUSS&O'Neill Inc. Consulting Engineers 146 Hartford Road,Manchester,CT 06040-5921 TEL 86o 646-2469 FAX 86o 643-6313 INTERNET:www.FandO.com Other Offices: Longmeadow,Massachusetts Fairfield,Connecticut February 11, 1999 East Providence,Rhode Island General Financial Services, Inc. CERTIFIED MAIL 8441 E. 32nd Street N. Suite 2000 Wichita, KS 67226 RE: The Savings Bank of Rockville Ellington Road, South Windsor, Connecticut To whom it may concern: In accordance with Section 7.3b of the "Town of South Windsor Inland Wetlands, Watercourses, and Conservation Regulations", we are required to notify you that an application has been filed on the property abutting yours and is subject to a hearing by the Inland Wetlands Agency/Conservation Commission. The application and plans are on file with the South Windsor Planning Department. As an abutting property owner you are invited to the hearing to ask questions and/or give comments, however, you are not required to attend. You may also submit written comments regarding the application prior to the hearing if you so desire. For further information regarding the specific date this will be heard please contact Phyllis Mann, Recording Secretary or Jeff Folger, the Zoning/Wetlands Enforcement Officer at the Planning Department, 644-2511, ext. 253. - Sincerely, Jay J. it , E. Senior Vice President 87546\A 10\SB0211 A.WPD Corres. Table l: Proposed Planting Materials for Wetland Creation Area A* Plant Mznamum Nlirzirria Planted Proposed cotes Com N mon ye Scent,fc Name Code' Installed'Size S acin Fay in : Nii nber. ,. PO Pin Oak Quercus palustris 1.5" caliper or 15'O.C. 5alled and 7 Likes Sun to semishade.; prefers 5' height i burlapped moist drained soils; attracts at least 20 animals ecles RM Zed maple Aoer rubrum 1.011caliper or 12'D.C. 5all A and 10 Likes sun to sem shade prefers 4' height burlapped moist to wet s0115; attracts at least 15 blyd s ecies VIP White Pine Pinus strobus 1.5.caliper or 12' D.C. 5alled and 5 Likes sun to semi-shade; prefers 4' height burlapped well drained sandy soils; attracts at least 12 bird species and a few small mammals AW Northern Viburnum 2.0 gallon or 6'O.C, Potted plant 26 Likes bun to semishade prefers arrowwood recognitum 3;0 height well drained aoile;attracts at least 37 vertebrate speclea W15 Common Ilex verticillata 2.0 gallon or 6'D.C. Potted plant 12 Likes Sun and semishade, prefers winterberry 3.0' height i moist to wet, rich soil;attracts at least 25 vertebratespecies Ge Cray dogwood Corms racemosa 2.0 gallon or 6.0'O.C. Potted plant 22 LikeS bun to semisha6l 20'height tolerates a variety of soil conditions attracts at least 20 vertebrates ecie� 5i3 Highbush Vaccinium 3.0 gallon or 8'O.C. Potted plant 12 Likes full sun and tolerates blueberry corymbosum 3.0' height partial shade; prefers acid, moist to wet soils; attracts at least 37 birds ecloo see Wetlands Mitigation Plan prepared by Fuss &O'Neill, Inc. RES, LLC—Planting Materials Tables— Wetland Mitigation Plan for Saving Bank of Rockiville, Ellington Road, S. Windsor, CT(515199) Page 1 Table 2: Proposed Planting Materials for Wetland Creation Area B* Plant minimum idlaxirnum Planted 'Proposed, Notes Common Name 5di ntific Name Code Insa>ied Size S acin Form Numbers RM RM maple Acer rubrum 1.0"caliper or 12' O.C. Balled and 6 Likes Sun to 5emiahadc, prefers 4' height burlapped moist to wet soils; attracts at i I feast 15 bird 5 ecies GI) Grey dogwood Corpus racemosa 2.O gallon or 6.0'D.C. rotted plant 11 Likes Sun to Bern shade 20' height tolerates a variety of Soil conclitiona attracts at least 20 vertebratespecies AW Northern Viburnum 2.0 gallon or 6'O.C. I Potted plant 8 Likes Sun to 5emishade; prefers arrowwood recognitum 3.0' height well drained soils;attracts at least 37 vertebrate species * see See Wetlands Mitigation flan prepared by Fuss &O'Neill, Inc. RES, LLC—Planting Materials Tables— Wetland Mitigation Plan for Saving Bank of Rockiville, Ellington Road, S. Windsor, CT(515199) Page 2 a Table 3: Suggested Planting Materials for Large Wetland Enhancement/Restoration Area P�ant ." minimum , laxirnurr�, ' " Punted Piro pled Nome COM" okNaln, Scientific Name 1P bode `In tapedSPcig ;Fore Nuri3bers Size** 58 Common eplcebuo-h, Linrlera benzolfl N/A VOL.: liner, 30 - 70 Likes sun to semishade;prefers rich, moist'soils;attracts at least , 6 bird species RM Red maple Acer rubrum N/A T O.C. liner 30 70 Likes sun to semishade; prefers moist to wet soils;attracts at least 15 bird species P© P,n-Oak , G2�aercus palu"5tri5 N/i'i' 7'O C. ;, iir�er 50 -;'70 Likes eun;to sernihae#e,'prefers . rna'fst dratnrd soiir;,attracts at past 2'0 an mai BB Highbush blueberry Vaccinium N/A ! 5'O.C. liner 30 - 70 Likes full sun and tolerates partial corymbooum shade; prefers acid, moist to wet soils;attracts at least 37 bird species N13 A Nannyberry Viburnum lentago N/A 5'O.C. liner 30 70 Likes full,sun to partial shade; prefers rich,moist soils;attracts at least 6 bird s ecies RC lied chokecherry Aronia arbutifolia N/A 5'O.C. liner 30 - 70 Likes sun to semishade;tolerates moist conditions;attracts at Ieaot 12 birdspecies W13 Common III&X verticillata N/A 5'O.C. liner 30 70 Likes sun and semishade;prefers 'winterberry? moist to wet,rich Soil;attracts at leant 25 vertebrate or ecies GD Grey dogwood Cornuo racemooa N/A 4'O.C. liner 30 - 70 Likes sun to semishade;tolerates a variety of soil conditions attracts at least 20 vertebrates ecies AW Northern Viburnum NIA 5'O.C. diner 30 70 Likes Pun to semishade;prefers well arrowwoocl ' recogniturn drained soils;attracts at least 37 vertebrate s; ecies see Wetlands Mitigation Ian prepared by Fuoo &O'Neill, Inc. ` Use liners 6"to !'+ ...Other ouggeated plants (plant at least 30 for each Selected opecieo): 5weet pepperbuoh, bayberry, Swamp azalea, puooy willow, elderberry, meadowoweet, wild raisin, American cranberrybuoh, white ash, black gum, white pine, eastern arborvitae, black cherry. RES, LLC—Planting Materials Tables— Wetland Mitigation Plan for Saving Bank of Rockiville, Ellington Road, S. Windsor, CT(515199) Page 3 Table 1: Proposed Planting Materials for Wetland Creation Area A* ; Plant lt2inamum �4laxi Baum; Planted„ Proposed Notes Common-kkTame ;Scyexfic Name Installecl' ize Form Numbers,. PO Pin Oak Quercuo paluotrio 1.55'caliper or 15'O.C. burls nc 7 LikeS Sun to Semlohade, prefers g pp moist drained Soils, attracts at least 20 animal s ecloo RM Red maple Acer rubruni 1.01caliper or 12'O.C. 5al1ed and 10 LikeS Sun.to Semihade prefers 4'height burlapped , moist to wet sails;attracts at least 15 bird S ecie5 WP White Pine Pinus strobus 1.5"caliper or 12'O.C. Balled and 5 LikeS Sun to semi-Shade; prefers 4' height burlapped well drained Sandy Soils; I attracts at least 12 bird Species and a few Small mammalo AW Northern Viburnum , 2.0 gallon or, 6'O.C. Potted plant 26 LikeS sun to se ' I kade; prefers arrowwood recognitum 3 0' height well drained soils;attracts at feast 37 vertebrate Species W13 Common Ilex verticillata 2.0 gallon or 6'O.G. Potted plant 12 LikeS sun and oemishade; prefers winterberry 3.0' height moist to wet, rich Soil; attracts at feast 25 vertebrates ecico GO Grey d, gwood m Cornuo eaceoSa 2.0 gallon or 6.0'O.C. Potted plant 22 LikeS Sun to Sem shade; 2.0'height tolerates a variety of Soil conciiti065 attracte at least 20 vertebrate S ecloo 1315 Highbush Vaccinium 3.0 gallon or 8'O.C. Potted plant 12 LikeS full Sun and tolerates blueberry corymbosum 3.0' height partial Shade; prefers acid, moist to wet soils; attracts at ' least 37 bird S ecieo See Wetlands Mitigation Plan prepared by Fuoo &O'Neill, Inc. RES, LLC—Planting Materials Tables— Wetland Mitigation Plan for Saving Bank ofRockiville, Ellington Road, S. Windsor, CT(515199) Page 1 z Table 2: Proposed Planting Materials for Wetland Creation Area B* Plant ConuSaon Name' Scientific Namenimu 1VMaxirnutn �' .Plant+ed Proposed � Notes bode I i all+ed Sme � � � � Ni��tber� aoi�i" Form' RM Red maple Acer rubrurn 1.0"caliper or 12'O.C. ( Balled and 6 Likes Sun to ocmiehadc, prefers 4' height burlapped moist to wet soils; attracts at least 15 birdspecies GP Grey dogwood Corpus racemoaa 2;0 gallom,or 6.0'O.C. Potted plant 11 Likes our to semishade 2Rff height tolerates'a variety of Soil con6lition5 attracts at`least 20 vertebrate ecies AW Northern Viburnum 2.0 gallon or 6'O.C. Potted plant 8 LikeS sun to semishade; prefers arrowwood recognitum 3.0' height well drained soils; attracts at least 37 vertebrate 5 ecies * see see Wetlands Mitigation Plan prepared by Fuss &O'Neill, Inc. RES, LLC—Planting Materials Tables— Wetland Mitigation Plan for Saving Bank ofRockiville, Ellington Road, S. Windsor, CT(515199) Page 2 Table 3: Suggested Planting Materials for Large Wetland Enhancement/Restoration Area Plantnimurn �1?aximum Planted Pro osed Notes Common 11Tame** ScientiFieNainae P Cade ' Ina�talled ". 3 ac%ng = Form Nu n ers 5B Common 5plcebu"rp Linlera benzoin N/A 5'O.C. diner 30 - 70 Likes oun to eomlrhade;prefers rich,moist soils;attracta at least 6 bird species RM Red maple Acer rubrum N/A T O.C. liner 30 - 70 Likes Sun to oemiohade;prefers moist to wet ooilo;attracts at least 15 bird r, ecieo PO Pin Oak Quercu "pa#ugtri ` ". NIA T!`Q"C: , lirie.�~`'" 30"- 70 " Liken sun toenri5hade,prefers moist drained soils,attraet6 at` leapt 20 animai a`ecies BB Highbuoh blueberry Vaccinium N/A 5'O.C. liner I 30 - 70 Likes full sun and tolerator, partial corymbooum 1 shade; prefers acid, moist to wet soils;attracts at feast 37 bird i o ecies NB Nannyberry Viburnum lentago N/A: 5' Q.C. liner 30 - 70 ' Likes full oun to partial Shade; prefers rich,moist soils;attracta at feast 0 bird o aoioe RC Red chokecherry Aronia arbutifolia N/A 5'D.C. i liner 30 - 70 Likes oun to oemiohade;tolerates moist conAtiono;attracto at least 12 bird o ecies WB : Common llex vertic I I N/A 5'D.C. liner 30;- 70 Likes sun and semishade;prefere, winterberry moist to wet,rich'soil;attracts at leapt 25 vertebrate o ecies GD Grey dogwood Cornuo racemooa N/A 4'O.C. liner I 30 - 70 Likeo sun to oemiohade,tolerator,a variety of Soil conditione attracts at leant 20 vertebrate o ecieo AW Northern Viburnum: N/A 5'O.C. liner 30i,- 70 Liken sun to semishade; prefers well arrowwood recognitum drained soile;attracto at least 57 vertebrates eciea see Wetlands Mitigation Flan prepared by Fuoo &O'Neill, Inc. Use liners 0"to !'+ "' Other ouggooted plants (plant at least 30 for each Selected opecieo): 5weet pepperbuoh, bayberry, Swamp azalea, puooy willow, elderberry, meadoweweet, wild raisin, American cranberrybuoh, white ash, black gum, white pine, eastern arborvitae, black cherry. RES, LLC—Planting Materials Tables— Wetland Mitigation Plan for Saving Bank of Rockiville, Ellington Road, S. Windsor, CT(515199) Page 3 ' Hydrologic Analysis prepared for The Savings Bank of Rockville ' Ellington Road, South Windsor, CT February 11, 1999 �O Fuss&O'Neill Inc. Consulting Engineers 146 Hartford Road,Manchester,CT 06040,5921 ' TEL 86o 646-2469 FAX 86o 643-6313 1200 Converse Street,Longmeadow,MA 01106.1721 TEL 413 567-9886 FAX 413 567-8936 ' 140 Sherman Street,Fairfield,CT 06430-5822 TEL Poi 256.1790 FAX Poi 256-5742 410 North Broadway,East Providence,RI 02914 TEL 401434-9760 FAX 401 434-9920 Fuss& O'Neill Inc. INTRODUCTION 1 The following is a storm drainage analysis for the proposed site development for The Savings Bank of Rockville,located on the south side of Ellington Road at the intersection of Clark Street in South Windsor, CT. The object of the Hydrologic Analysis was to size the proposed stormwater drainage system to adequately collect and convey the stormwater runoff for a storm with a return frequency equal to 10 years. The proposed stormwater drainage system for the proposed development is to outlet into the existing swale on the property which flows into the Ellington Road drainage system and discharges on the north side of Ellington Road. ' The axiom of design used in the hydrologic study was; Hydographs Hydroflow software program for the analysis of the existing swale and outlet,SCS method for determining the sizing of the retention basins / biofilters and the rational method for culvert sizing. The following ' pages contain the charts, graphs, maps and calculations involved in the stormwater drainage system design. The determination of the peak rates of stormwater runoff adhere to the methods ' suggested in the Connecticut Soil Erosion and Sediment Control Guidelines. DRAINAGE SYSTEM ' The approach to the stormwater management analysis for the site included a comprehensive review of the drainage patterns for both on-site and off-site contributory areas. Utilization of ' the USGS Quadrangle Map, USDA Soil Survey Map, Town of South Windsor Topographic Maps, abutting property recent development and field investigation was required in order to establish the characteristics for all tributary areas. ' The primary goal of the drainage system design is to offset any negative impacts related to runoff and comply with Town, State and Federal requirements. The proposed storm water management system consists of directing proposed parking lot runoff and proposed building roofs into a retention basin/biofilter stormwater filtering system. The 2 systems were sized to contain the first inch of rainfall from the proposed development. Storm water runoff from larger storm events will pass through the filters as recommended for best stormwater management practices. The downstream control on the swale is a 12"rep pipe. The pipe then enters the Ellington Road drainage system. The site is a natural detention area for the Deming Street drainage system,the detention basin outlet for the newly constructed Post Office and the abutter on the east. By not restricting our larger design storms we pass through the 12" pipe before the other storms reach the oulet, thus avoiding coincidental peaking of the design storms. This is demonstrated in the following calculations. The upstream stormwater from the east abutter has been previously treated with an upstream on-site biofilter and will be conveyed to the existing stream through a culvert. SUMMARY The stormwater management system has been designed in accordance with current and accepted engineering practices and methods. 87546\A I OVAL021 I A.WPD tCorres. 1 Fuss&O'Neill Inc. 1 DRAINAGE AREA MAPS 1 ' 87546\A 1 OVAL021 I A.WPD Corres. Fuss&O'Neill Inc. i i 1 1 1 i 1 DEVELOPMENT STORMWATER RUNOFF 87546\A l 0UA L0211 A.W P D Corres. kydrograph Summary m m a rY Page 1 yd. Hydrograph Peak Time Time to Volume Return Inflow Maximum Maximum Hydrograph No. type flow interval peak period hyd(s) elevation storage description (origin) (cfs) (min) (min) (acft) (yrs) (ft) (cuft) 1 SCS Runoff 1.8 1 725 0.14 2 -- — — Existing Condi SCS Runoff 5.6 1 724 0.42 2 ---- -- Proposed Condi t Reservoir 2.5 1 734 0.42 2 2 72.03 2330 Ellington Road . I I Proj. file: 87546A10.GPW OF file: New.IDF Run date: 02-11-1999 7 Hydrograph Report Page 1 Hyd. No. 1 Existing Conditions Hydrograph type = SCS Runoff Peak discharge = 1.76 cfs Storm frequency = 2 yrs Time interval = 1 min Drainage area = 1.8 ac Curve number = 71 Basin Slope = 0 % Hydraulic length = 0 ft Tc method = USER Time of conc. (Tc) = 5 min Total precip. = 3.20 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Total Volume=5,908 tuft,0.136 acft Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) 11.80 0.25 12.35 0.79 12.90 0.25 11.82 0.28 12.37 0.76 11.83 0.30 12.38 0.73 11.85 0.33 12.40 0.70 ...End 11.87 0.36 12.42 0.67 11.88 0.39 12.43 0.63 11.90 0.43 12.45 0.60 11.92 0.46 12.47 0.56 11.93 0.52 12.48 0.53 11.95 0.59 12.50 0.49 11.97 0.69 12.52 0.45 11.98 0.82 12.53 0.42 12.00 1.00 12.55 0.39 12.02 1.20 12.57 0.36 12.03 1.40 12.58 0.34 1 12.05 1.58 12.60 0.33 12.07 1.70 12.62 0.32 12.08 1.76 << 12.63 0.31 12.10 1.74 12.65 0.31 12.12 1.67 12.67 0.30 12.13 1.55 12.68 0.30 12.15 1.42 12.70 0.30 12.17 1.29 12.72 0.29 12.18 1.18 12.73 0.29 12.20 1.09 12.75 0.29 12.22 1.03 12.77 0.28 12.23 0.99 12.78 0.28 12.25 0.95 12.80 0.27 12.27 0.93 12.82 0.27 12.28 0.90 12.83 0.27 12.30 0.88 12.85 0.26 12.32 0.85 12.87 0.26 12.33 0.82 12.88 0.26 Hydrograph Report Page 1 Hyd. No. 2 Proposed Conditions Hydrograph type _ SCS Runoff Peak discharge _ 5.59 cfs Storm frequency 2 yrs Time interval 1 min Drainage area = 1.8 ac Curve number = 96 Basin Slope = 0 % Hydraulic length = 0 ft Tc method = USER Time of conc. (Tc) = 5 min Total precip. = 3.20 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Total Volume=18,509 cuft,0.425 acft Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 10.18 0.25 10.73 0.33 11.28 0.48 11.83 1.91 10.20 0.25 10.75 0.33 11.30 0.49 11.85 2.00 10.22 0.25 10.77 0.33 11.32 0.50 11.87 2.08 10.23 0.26 10.78 0.34 11.33 0.51 11.88 2.17 10.25 0.26 10.80 0.34 11.35 0.52 11.90 2.25 10.27 0.26 10.82 0.34 11.37 0.53 11.92 2.35 10.28 0.26 10.83 0.34 11.38 0.54 11.93 2.50 10.30 0.27 10.85 0.34 11.40 0.55 11.95 2.71 10.32 0.27 10.87 0.35 11.42 0.55 11.97 3.02 10.33 0.27 10.88 0.35 11.43 0.56 11.98 3.43 10.35 0.27 10.90 0.35 11.45 0.57 12.00 3.94 10.37 0.28 10.92 0.35 11.47 0.58 12.02 4.49 10.38 0.28 10.93 0.36 11.48 0.59 12.03 5.00 10.40 0.28 10.95 0.36 11.50 0.60 12.05 5.39 10.42 0.28 10.97 0.36 11.52 0.61 12.07 5.59 << 10.43 0.29 10.98 0.36 11.53 0.62 12.08 5.55 10.45 0.29 11.00 0.37 11.55 0.65 12.10 5.32 10.47 0.29 11.02 0.37 11.57 0.68 12.12 4.93 10.48 0.29 11.03 0.37 11.58 0.73 12.13 4.45 10.50 0.29 11.05 0.38 11.60 0.79 12.15 3.95 10.52 0.30 11.07 0.38 11.62 0.85 12.17 3.50 10.53 0.30 11.08 0.39 11.63 0.92 12.18 3.12 10.55 0.30 11.10 0.39 11.65 1.00 12.20 2.84 10.57 0.30 11.12 0.40 11.67 1.08 12.22 2.63 10.58 '0.31 11.13 0.41 11.68 1.16 12.23 2.47 10.60 0.31 11.15 0.42 11.70 1.24 12.25 2.35 10.62 0.31 11.17 0.42 11.72 1.33 12.27 2.26 10.63 0.31 11.18 0.43 11.73 1.41 12.28 2.18 10.65 0.32 11.20 0.44 11.75 1.49 12.30 2.09 10.67 0.32 11.22 0.45 11.77 1.57 12.32 2.01 10.68 0.32 11.23 0.46 11.78 1.66 12.33 1.93 10.70 0.32 11.25 0.47 11.80 1.74 12.35 1.84 10.72 0.33 11.27 0.48 11.82 1.83 12.37 1.76 Continues on next page... r� Proposed Conditions Page 2 Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) 12.38 1.67 13.22 0.41 14.05 0.29 12.40 1.59 13.23 0.41 14.07 0.29 12.42 1.50 13.25 0.40 14.08 0.29 12.43 1.42 13.27 0.40 14.10 0.29 12.45 1.33 13.28 0.40 14.12 0.28 12.47 1.25 13.30 0.40 14.13 0.28 12.48 1.16 13.32 0.39 14.15 0.28 12.50 1.08 13.33 0.39 14.17 0.28 12.52 0.99 13.35 0.39 14.18 0.28 12.53 0.92 13.37 0.39 14.20 0.28 12.55 0.85 13.38 0.38 14.22 0.28 12.57 0.79 13.40 0.38 14.23 0.28 12.58 0.74 13.42 0.38 14.25 0.28 12.60 0.71 13.43 0.38 14.27 0.27 12.62 0.69 13.45 0.37 14.28 0.27 12.63 0.67 13.47 0.37 14.30 0.27 12.65 0.66 13.48 0.37 14.32 0.27 12.67 0.65 13.50 0.37 14.33 0.27 12.68 0.64 13.52 0.37 14.35 0.27 12.70 0.63 13.53 0.36 14.37 0.27 12.72 0.62 13.55 0.36 14.38 0.27 12.73 0.61 13.57 0.36 14.40 0.27 12.75 0.60 13.58 0.36 14.42 0.26 12.77 0.59 13.60 0.35 14.43 0.26 12.78 0.58 13.62 0.35 14.45 0.26 12.80 0.57 13.63 0.35 14.47 0.26 12.82 0.57 13.65 0.35 14.48 0.26 12.83 0.56 13.67 0.34 14.50 0.26 12.85 0.55 13.68 0.34 14.52 0.26 12.87 0.54 13.70 0.34 14.53 0.26 12.88 0.53 13.72 0.34 14.55 0.26 12.90 0.52 13.73 0.34 14.57 0.25 12.92 0.51 13.75 0.33 14.58 0.25 12.93 0.50 13.77 0.33 14.60 0.25 12.95 0.49 13.78 0.33 14.62 0.25 12.97 0.49 13.80 0.33 14.63 0.25 12.98 0.48 13.82 0.32 13.00 0.47 13.83 0.32 13.02 0.46 13.85 0.32 ...End ' 13.03 0.45 13.87 0.32 13.05 0.44 13.88 0.31 13.07 0.44 13.90 0.31 13.08 0.43 13.92 0.31 13.10 0.43 13.93 0.31 13.12 0.42 13.95 0.31 13.13 0.42 13.97 0.30 13.15 0.42 13.98 0.30 13.17 0.41 14.00 0.30 13.18 0.41 14.02 0.30 13.20 0.41 14.03 0.29 1 r rs Hydrograph Report Page 1 Hyd. No. 3 Ellington Road Hydrograph type = Reservoir Peak discharge = 2.45 cfs Storm frequency = 2 yrs Time interval = 1 min Inflow hyd. No. = 2 Reservoir name = Ellington Road Max. Elevation = 72.03 ft Max. Storage = 2,330 cult Storage Indication method used. Total Volume=18,505 cult,0.425 acft Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 10.22 0.25 71.19 0.25 ---- ----- ----- ---- ----- 0.25 10.23 0.26 71.19 0.25 -- ---- ---- --- ---- 0.25 10.25 0.26 71.19 0.25 ---- ----- ----- ----- ---- 0.25 10.27 0.26 71.19 0.26 ---- ----- ----- ----- ----- 0.26 10.28 0.26 71.19 0,26 --- ----- ----- ----- ---- 0.26 10.30 0.27 71.19 0.26 0.26 ----- ----- ----- ---- 10.32 0.27 71.19 0.26 0.26 10.33 0.27 71.19 0.27 ---- ----- ----- ----- ---- 0.27 10,35 0.27 71,19 0.27 ---- ----- ----- ----- ---- 0,27 10.37 0.28 71.19 0.27 ---- � 0.27 10.38 0.28 71.19 0.27 ----- ----- ----- 0.27 10.40 0.28 71.19 0.28 ----- ----- ----- ----- ----- 0.28 10.42 0.28 71.19 0.28 ----- 0.28 ----- ----- ----- 10.43 0.29 71.19 0.28 0.28 10.45 0.29 71.19 0.28 ----- ----- ----- ----- ---- 0.28 10.47 0.29 71.19 0.29 ----- ---- ---- ----- ---- 0.29 10.48 0.29 71.19 0.29 ^-- 0.29 ----- ----- ---- ----- 10.50 0.29 71.19 0.29 0.29 10.52 0.30 71.19 0.29 ----- ----- ----- ----- ----- 0.29 29 10.53 0.30 71.19 0. - ---- -�- ----- ---- 0. 10.55 0.30 71.19 0.3030 0.3030 10.57 0.30 71.19 0.30 0.30 10.58 0.31 71.19 0.30 ----- ----- ----- ----- ---- 0.30 10.60 0.31 71.19 0.30 �___ _�___ __�_ _____ `___ 0.30 10.62 0.31 71.19 0.31 0.31 10.63 0.31 71.19 0.31 ----- ----- ----- ----- ---- 0.31 10.65 0.32 71.19 0.31 ---- ----- ----- ----- ---- 0.31 10.67 0.32 71.19 0.31 ---- ----- ---- 0.31 ----- ----- 10.68 0.32 71.19 0.32 0.32 10.70 0.32 71.19 0.32 ----- ----- ----- ----- ---- 0.32 10.72 0.33 71.19 0.32 ---�- __ -- _---- =__- J=== 0.32 10.73 0.33 71.20 0.32 0.32 10.75 0.33 71.20 0.33 0.33 10.77 0.33 71.20 0.33 ----- ----- ----- ----- ---- 0.33 10.78 0.34 71.20 0.33 _____ ____ ____- _ ___ _____ 0.33 10.80 0.34 71.20 0.33 0.33 10.82 0.34 71.20 0.34 ---- ----- ----- ----- ---- 0.34 Continues on next page... e� Ellington Road Page 2 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 10.83 0.34 71.20 0.34 -=___ _____ -_- _---- ---_- 0.34 10.85 0.34 71.20 0.34 0.34 10.87 0.35 71.20 0.34 ----- ----- ----- ----- ----- 0.34 10.88 0.35 71.20 0.34 _____ ____ _____ _____ _____ 0.34 10.90 0.35 71.20 0.35 0.35 10.92 0.35 71.20 0.35 ----- ----- ----- ----- ----- 0.35 10.93 0.36 71.20 0.35 ----- ----- ----- ----- ----- 0.35 10.95 0.36 71.20 0.35 _____ =____ _____ _____ _____ 0.35 10.97 0.36 71.20 0.36 0.36 10.98 0.36 71.20 0.36 ----- ----- ----- ----- ----- 0.36 ' 11.02 0.37 71.20 0.36 ---- ----- ---_ ----- ----- 0.36 11.02 0.37 71.20 0.36 0.36 11.03 0.37 71.20 0.37 0.37 11.05 0.38 71.20 0.37 ----- ----- ----- ----- ----- 0.37 11.07 0.38 71.20 0.37 ----- ----- ----- ----- ---- 0.37 11.08 0.39 71.20 0.38 ----- ----- ----- ----- ---- 0.38 11.10 0.39 71.20 0.38 ---- ----- ----- ----- ---- 0.38 11.12 0.40 71.20 0.39 ----- ----- ----- ----- ----- 0.39 11.13 0.41 71.20 0.39 _____ __�- _____ _____ _____ 0.39 11.15 0.42 71.20 0.40 0.40 11.17 0.42 71.20 0.41 ---- ----- ----- ----- ----- 0.41 11.18 0.43 71.21 0.42 _--- 0.42 11.20 0.44 71.21 0.43 " 0.42 ----- ----- ----- ----- 11.22 0.45 71.21 0.43 0.43 11.23 0.46 71.21 0.44 ---- ----- ----- ----- ----- 0.44 11.25 0.47 71.21 0.45 ----- ----- ----- ----- ----- 0.45 f 11.27 0.48 71.21 0.46 ----- ----- ----- ----- ----- 0.46 11.28 0.48 71.21 0.47 ----- ----- ---- ----- ----- 0.47 11.30 0.49 71.21 0.48 ----- ----- ----- ----- ----- 0.48 11.32 0.50 71.21 0.48 0.48 -_-- ----- ----- ----- ----- 11.33 0.51 71.21 0.49 0.49 11.35 0.52 71.21 0.50 ----- ----- ----- ----- ----- 0.50 11.38 0.53 71.22 0.51 ----- ----- --- ----- ----- 0.51 11.38 0.54 71.22 0.52 0.52 11.40 0.55 71.22 0.53 0.53 11.42 0.55 71.22 0.54 ----- ----- ----- ----- ----- 0.54 11.43 0.56 71.22 0.55 ----- ----- ----- ----- ----- 0.55 11.45 0.57 71.22 0.55 ----- ----- ----- ----- ----- 0.55 11.47 0.58 71.22 0.56 ----- ----- ----- ----- ----- 0.56 11.48 0.59 71.22 0.57 ----- ----- ----- ----- ----- 0.57 11.50 0.60 71.22 0.58 _____ _____ ___- _____ _____ 0.58 11.52 0.61 71.22 0.59 0.59 11.53 0.62 71.23 0.60 ---- ----- ----- ----- ---- 0.60 11.55 0.65 71.23 0.61 ----- ----- ----- ----- ----- 0.61 11.57 0.68 71.23 0.63 0.63 11.58 0.73 71.23 0.66 0.66 11.60 0.79 71.24 0.70 ----- ----- ----- ----- ----- 0.70 11.62 0.85 71.24 0.75 0.75 ----- ----- ----- ----- ----- 11.63 0.92 71.25 0.79 0.79 11.65 1.00 71.26 0.82 ----- ----- ----- ----- ----- 0.82 Continues on next page... t Ellington Road Page 3 Hydrograph Discharge Table Time Inflow Elevation Culv.A Culv. B Culv. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 11.67 1.08 71.27 0.86 0.86 ----- ----- ----- ----- ----- 11.68 1.16 71.28 0.91 0.91 11.70 1.24 71.29 0.97 ----- ----- ----- ----- ----- 0.97 11.72 1.33 71.31 1.03 ____ _____ _____ __N_ _____ 1.03 11.73 1.41 71.33 1.09 1.09 11.75 1.49 71.34 1.14 ----- ----- ----- ----- ---- 1.14 11.77 1.57 71.36 1.20 ---- ----- ----- ----- ----- 1.20 11.78 1.66 71.38 1.26 1.26 ----- ----- ----- ----- ----_ 11.80 1.74 71.41 1.33 1.33 11.82 1.83 71.43 1.39 ----- ----- ----- ----- ----- 1.39 1 11.83 1.91 71.45 1.51 ----- ----- ----- ----- _ --- 1.45 51 11.85 2.00 71.48 1.51 1.51 11.87 2.08 71.51 1.57 1.57 11.88 2.17 71.54 1.64 ----- ----- ----- ----- ----- 1.64 11.90 2.25 71.56 1.70 ---- ----- ----- ----- ----- 1.70 11.92 2.35 71.60 1.76 1.76 11.93 2.50 71.63 1.83 ----- ----- ----- ----- ----- 1.83 11.95 2.71 71.67 1.91 ----- ----- ----- ----- ----- 1.91 11.97 3.02 71.72 2.00 ---- 2.00 ---_- ----- ----- ----- 11.98 3.43 71.78 2.11 2.11 12.00 3.94 71.87 2.22 ----- ----- ----- ----- ----- 2.22 38 12.02 4.00 71.00 2.45 ----- ---- ----- ----- ----- 2.45 12.03 5.00 72.00 2.45 � 2.45 12.05 5.39 72.01 2.45 2.45 12.07 5.59 << 72.01 2.45 ---- ----- ----- ----- ----- 2.45 12.08 5.55 72.01 2.45 ---- ----- ----- ----- ----- 2.45 12.10 5.32 72.02 2.45 2.45 12.12 4.93 72.02 2.45 ----- ----- ---- ----- ----- 2.45 12.13 4.45 72.02 2.45 ---- ----- ----- ----- ----- 2.45 12.15 3.95 72.02 2.45 2.45 ----- ----- ----- ----- ----- 12.17 3.50 72.02 2.45 2.45 12.18 3.12 72.03 2.45 ----- ----- ----- ----- ----- 2.45 12.2 2. 72.03 2.45 2.45 12.22 2.63 63 72.03 2.45 2.45 ----- ---- ----- ----- ----- 12.23 2.47 72.03 2.45 2.45 << 12.25 2.35 72.03 2.45 ----- ----- ----- ----- ----- 2.45 12.27 2.26 72.03 2.45 2.45 ----- ----- ----- ----- -_-- 12.28 2.18 72.03 2.45 2.45 12.30 2.09 72.03 2.45 ----- ----- ----- ----- ----- 2.45 12.32 2.01 72.03 2.45 ----- ----- ----- ----- ----- 2.45 12.33 1.93 72.02 2.45 2.45 ----- ----- ----- ----- ----- 12.35 1.84 72.02 2.45 2.45 12.37 1.76 72.02 2.45 ----- ----- ----- ----- ----- 2.45 12. 1. 72.02 2.45 2.45 12.40 40 1.59 59 72.02 2.45 2.45 ----- ----- ----- ----- ---- 12.42 1.50 72.02 2.45 2.45 12.43 1.42 72.02 2.45 ----- ----- ----- ----- ----- 2.45 12.45 1.33 72.02 2.45 2.45 ----- ---- ----- ----- ---- 12.47 1.25 72.02 2.45 2.45 12.48 1.16 72.02 2.45 ----- ----- ----- ----- ----- 2.45 Continues on next page... f-5 Ellington Road Page 4 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) j 12.50 1.08 72.01 2.45 w-_ 2.45 12.52 0.99 72.01 2.45 ----- ----- ----- ----- 2.45 12.53 0.92 72.01 2.45 -- ----- ----- ----- ----- 2.45 12.55 0. 72.01 2.45 2.45 12.57 0.79 79 72.01 2.45 ---- ----- 2.45 ----- ----- ---- 12.58 0.74 72.01 2.45 --- ----- 2.45 12.60 0.71 72.00 2.45 ----- ---- ----- ---- ----- 2.45 12.62 0.69 72.00 2.45 ---- ----- ----- ---- _--_- 2.45 12.63 0.67 71.96 2.36 2.36 12.65 0.66 71.87 2.22 ---- ----- ----- ----- ----- 2.22 12.67 0.65 71.79 2.12 ---- ----- ----- ----- ----- 2.12 12.68 0.64 71.71 1.99 __� 1.99 12.70 0.63 71.64 1.86 ----- ----- ---- ----- 1.86 12.72 0.62 71.58 1.73 --- ----- ----- ----- ----- 1.73 12.73 0.61 71.52 1.61 �-- _--- ----- ----_ -_-_- 1.61 12.75 0.60 71.47 1.49 1.49 12.77 0.59 71.43 1.38 ---- ----- ----- ----- ----- 1.38 12.78 0.58 71.39 1.27 ----- ----- ----- ----- ----- 1.27 12.80 0.57 71.35 1.16 1.16 12.82 0.57 71.32 1.07 `-- ----- ----- ----- ----- 1.07 12.83 0.56 71.30 0.98 ---- ----- ----- ----- ----- 0.98 12.85 0.55 71.28 0.90 --- ----- ----- ----- ----- 0.90 12.87 0.54 71.26 0.83 -�-- ----- ----- ----_ ----- " 0.83 12.88 0.53 71.24 0.77 0.77 12.90 0.52 71.23 0.67 ---- ----- ----- ----- ----- 0.67 12.92 0.51 71.23 0.5 --- ----- ----- ----- ---- 0.61 12.93 0.50 71.22 0.57 -_--_ 0.57 12.95 0.49 71.22 0.54 -___ _____ 0.54 12.97 0.49 71.22 0.52 ----- ---- ---- ----- ----- 0.52 12.98 0.48 71.21 0.50 -__- 0.50 13.00 0.47 71.21 0.49 ----- ----- ----- ----- 0.49 13.02 0.46 71.21 0.48 ----- ----- ---- ----- ----- 0.48 13.03 0.45 71.21 0.47 ----- ---- ----- ----- ----- 0.47 13.05 0.44 71.21 0.46 __-= _____ _____ _____ _____ 0.46 13.07 0.44 71.21 0.45 0.45 13.08 0.43 71.21 0.44 ----- ----- ----- ----- ----- 0.44 13.12 0.43 71.21 0.44 ----- -_ -- --_ - ----- ___ - 0.44 13.12 0.42 71.21 0.43 ---_ 0.43 13.13 0.42 71.21 0.43 ----- ----- 0.43 13.15 0.42 71.21 0.42 ---- ----- ----- ----- ----- 0.42 13.17 0.41 71.21 0.42 0.42 ----- --_-- ---__ _---- ---- 13.18 0.41 71.21 0.42 0.42 13.20 0.41 71.20 0.41 ----- ----- ----- ----- ----- 0.41 13.22 0.41 71.20 0.41 ----- ----- ----- ----- ----- 0.41 13.23 0.41 71.20 0.41 0.41 -___- __--- ---- ----- -_-_- 13.25 0.40 71.20 0.41 0.41 13.27 0.40 71.20 0.41 ----- ----- ----- ----- ----- 0.41 13.30 0.40 71.20 0.40 ---- ----- ----- ----- ----- 0.40 13.30 0.40 71.20 0.40 0.40 13.32 0.39 71.20 0.40 ----- ----- ----- ----- --- 0.40 Continues on next page... Ellington Road Page 5 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 13.33 0.39 71.20 0.40 =__-_ _____ _____ _N__ -__ 0.40 13.35 0.39 71.20 0.39 0.39 13.37 0.39 71.20 0.39 ----- ----- ----- ----- ----- 0.39 13.38 0.38 71.20 0.39 --- A-- 0.39 13.40 0.38 71.20 0.39 ----- ----- ----- 0.39 13.42 0.38 71.20 0.38 ---- ----- ----- ----- ----- 0.38 13.43 0.38 71.20 0.38 ----- ----- ----- ----- ----- 0.38 13.45 0.37 71.20 0.38 -__= _____ _____ ____ -___ 0.38 13.47 0.37 71.20 0.38 0.38 13.48 0.37 71.20 0.37 ----- ----- ----- ----- ----- 0.37 ' 13.52 0.37 71.20 0.37 ----- ----- ----- ----- „=== 0.37 13.52 0.37 71.20 0.37 0.37 13.53 0.36 71.20 0.37 0.37 13.55 0.36 71.20 0.37 ----- ----- ----- ----- ----- 0.37 13.57 0.36 71.20 0.36 ____ _____ __N_ _____ -___ 0.36 13.58 0.36 71.20 0.36 0.36 13.60 0.35 71.20 0.36 ----- ----- ----- ----- ----- 0.36 13.62 0.35 71.20 0.36 ----- ----- ----- ----- ----- 0.36 13.63 0.35 71.20 0.35 _____ _____ __=__ _____ -___ 0.35 13.65 0.35 71.20 0.35 0.35 13.67 0.34 71.20 0.35 ----- ----- ----- ----- ----- 0.35 13.70 0.34 71.20 0.35 ___ - -�--- _~_= ----- ____- 0.35 13.70 0.34 71.20 0.34 ' 0.34 13.72 0.34 71.20 0.34 0.34 13.73 0.34 71.20 0.34 ----- ---- ----- ----- ----- 0.34 13.75 0.33 71.20 0.34 0.34 -___ _____ _-__ _____ ____ 13.77 0.33 71.20 0.34 0.34 13.78 0.33 71.20 0.33 ---- ----- ----- ----- ----- 0.33 13.80 0.33 71.20 0.33 ----- ----- -- ----- ---- 0.33 13.82 0.32 71.20 0.33 ---- ---- ----- ----- ---- 0.33 13.83 0.32 71.20 0.33 0.33 13.85 0.32 71.20 0.32 ----- ----- ----- ----- ----- 0.32 13.88 0.32 71.19 0.32 - -- ---- _-M ----- ---- 0.32 13.88 0.31 71.19 0.32 0.32 13.90 0.31 71.19 0.32 0.32 13.92 0.31 71.19 0.31 ----- ----- ---- ----- ----- 0.31 1 13.93 0.31 71.19 0.31 _____ _____ _____ _____ _____ 0.31 13.95 0.31 71.19 0.31 0.31 13.97 0.30 71.19 0.31 ----- ----- ----- ----- ----- 0.31 13.98 0.30 71.19 0.31 ----- ----- ----- ----- ----- 0.31 14.00 0.30 71.19 0.30 _____ ____ _____ _ ___ _____ 0.30 14.02 0.30 71.19 0.30 0.30 14.03 0.29 71.19 0.30 ----- ----- ----- ----- ----- 0.30 14.05 0.29 71.19 0.30 ----- ----- ----- ----- ----- 0.30 14.07 0.29 71.19 0.29 0.29 ----- ----- ----- ----- ----- 14.08 0.29 71.19 0.29 0.29 14.10 0.29 71.19 0.29 ----- ----- ----- ----- ----- 0.29 14.12 0.28 71.19 0.29 0.29 ----- ----- ---- ----- ----- 14.13 0.28 71.19 0.29 0.29 14.15 0.28 71.19 0.29 ----- ----- ----- ----- ----- 0.29 Continues on next page... >5 Ellington Road Page 6 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 14.17 0.28 71.19 0.28 ____ ---- �- 0.28 ----- ----- 14.18 0.28 71.19 0.28 0.28 14.20 0.28 71.19 0.28 ----- ----- ----- ----- --- 0.28 14.22 0.28 71.19 0.28 ----- ----- -- ----- -- 0.28 14.23 0.28 71.19 0.28 ----- ---- ----- ---- -- 0.28 14.25 0.28 71.19 0.28 ----- ----- -- ----- --- 0.28 14.27 0.27 71.19 0.28 ---- ----- -- ----- --- 0.28 14.28 0.27 71.19 0.2$ _____ --N --- 0.28 ----- ----- 14.30 0.27 71.19 0.27 0.27 14.32 0.27 71.19 0.27 ----- ---- ----- ----- --- 0.27 14.33 0.27 71.19 0.27 ----- ----- -- ----- --- 0.27 14.35 0.27 71.19 0.27 -� ----- --- 0.27 ----- ----- 14.37 0.27 71.19 0.27 0.27 14.38 0.27 71.19 0.27 ----- ---- --- ---- --- 0.27 14.40 0.27 71.19 0.27 ____ ____ --- _�--_ ___ 0.27 14.42 0.26 71.19 0.27 0.27 14.43 0.26 71.19 0.27 ----- ----- --- ---- --- 0.27 14.45 0.26 71.19 0.26 ----- ----- - ---- --- 0.26 14.47 0.26 71.19 0.26 _____ ---- --- 0.26 ----- ----- 14.48 0.26 71.19 0.26 0.26 14.50 0.26 71.19 0.26 ---- ----- - ----- --- 0.26 14.52 0.26 71.19 0.26 ----- =_-- - _ _--- 0.26 14.53 0.26 71.19 0.26 . 0.26 14.55 0.26 71.19 0.26 0.26 14.57 0.25 71.19 0.26 ----- ----- ----- ---- --- 0.26 14.58 0.25 71.19 0.26 _____ _____ --- ____ ---__ 0.26 14.60 0.25 71.19 0.25 0.25 14.62 0.25 71.19 0.25 ----- ----- - -- --- 0.25 14.63 0.25 71.19 0.25 ----- ----- - --- -- 0.25 14.65 0.25 71.19 0.25 ----- ----- - ---- ---- 0.25 14.67 0.25 71.19 0.25 ----- ----- -- ----- ---- 0.25 ...End /f� Reservoir Report Page 1 Reservoir No. 1 Ellington Road Culvert/ Orifice Structures Weir Structures [A] [B] [C] [A] [B] [C] Rise (in) = 12.0 0.0 0.0 Crest Len (ft) = 0.0 0.0 0.0 Span (in) = 12.0 0.0 0.0 Crest El. (ft) = 0.00 0.00 0.00 No. Barrels = 1 0 0 Weir Coeff. = 3.00 3.00 3.00 Invert El.(ft) = 71.16 0.00 0.00 Eqn. Exp. = 1.50 1.50 1.50 Length (ft) = 7.0 0.0 0.0 Multi-Stage = No No No Slope (%) = 3.14 0.00 0.00 N-Value = .013 .013 .013 Orif. Coeff. = 0�60 0.60 0.60 Multi-Stage No No Tailwater Elevation = 0.00 ft Note:All outflows have been analyzed under inlet and outlet control. Stage /Storage / Discharge Table Stage Storage Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Discharge (ft) (cuft) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 0.0 00 71.16 0.00 ___ ___ ___ ___ __ 0.00 0.1 93 71.24 0.78 0.78 0.2 186 71.33 1.10 --- --- --- --- --- 1.10 0.3 279 71.41 1.34 ___ ___ ___ ___ =__ 1.34 0.3 372 71.50 1.55 1.55 0.4 465 71.58 1.73 --- --- --- --- --- 1.73 0.5 557 71.66 1.90 --- --- --- --- -- 1.90 0.6 650 71.75 2.05 ___ _ _ _ _ ___ N_ 2.05 0.7 743 71.83 2.19 2.19 0.8 836 71.92 2.26 --- --- --- --- --- 2.26 .8 72. 0 2.45 2.45 1 11,.0 11470 72.20 2.45 2.45 --- --- --- --- --- 1.2 22,012 72.40 3.25 3.25 1.4 32,553 72.60 3.67 --- --- --- --- --- 3.67 1.6 43,095 72.80 4.04 ___ ___ _=_ ___ ___ 4.04 1.8 53,636 73.00 4.38 4.38 2.0 64,177 73.20 4.69 --- --- --- --- --- 4.69 2.2 74,719 73.40 4.99 --- --- --- --- --- 4.99 2.4 85,260 73.60 5.27 5.27 --- --- _- --- --- 2.6 95,802 73.80 5.53 5.53 2.8 106,343 74.00 5.78 --- --- --- --- --- 5.78 !7 kydrograph Summary m m a rY Page 1 Hyd. Hydrograph Peak Time Time to Volume Return Inflow Maximum Maximum Hydrograph No. type flow interval peak period hyd(s) elevation storage description (origin) (cfs) (min) (min) (acft) (yrs) (ft) (cuft) I—, SCS Runoff 4.1 1 725 0.29 10 — ---- — Existing Condi '12 SCS Runoff 8.4 1 724 0.65 10 -- ---- - Proposed Condi 3 Reservoir 2.5 1 743 0.65 10 2 72.08 5228 Ellington Road r r r r Proj. file: 87546A10.GPW OF file: New.IDF Run date: 02-11-1999 P Hydrograph Report Page 1 Hyd. No. 1 Existing Conditions Hydrograph type = SCS Runoff Peak discharge = 4.08 cfs Storm frequency = 10 yrs Time interval = 1 min Drainage area = 1.8 ac Curve number = 71 Basin Slope = 0 % Hydraulic length = 0 ft Tc method = USER Time of conc. (Tc) = 5 min Total precip. = 4.70 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Total Volume=12,735 cult,0.292 acft Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 11.57 0.26 12.12 3.76 12.67 0.60 13.22 0.39 11.58 0.28 12.13 3.46 12.68 0.59 13.23 0.39 11.60 0.31 12.15 3.12 12.70 0.59 13.25 0.39 11.62 0.34 12.17 2.81 12.72 0.58 13.27 0.39 11.63 0.38 12.18 2.55 12.73 0.57 13.28 0.39 11.65 0.41 12.20 2.34 12.75 0.56 13.30 0.38 11.67 0.46 12.22 2.19 12.77 0.56 13.32 0.38 11,68 0,50 12,23 2.08 12.78 0.55 13,33 0,38 11.70 0.54 12.25 2.00 12.80 0.54 13.35 0.38 11.72 0.59 12.27 1.94 12.82 0.53 13.37 0.38 11.73 0.64 12.28 1.88 12.83 0.53 13.38 0.37 11.75 0.69 12.30 1.82 12.85 0.52 13.40 0.37 11.77 0.74 12.32 1.76 12.87 0.51 13.42 0.37 11.78 0.80 12.33 1.69 12.88 0.50 13.43 0.37 11.80 0.86 12.35 1.63 12.90 0.49 13.45 0.37 11.82 0.92 12.37 1.56 12.92 0.49 13.47 0.36 11.83 0.98 12.38 1.49 12.93 0.48 13.48 0.36 11.85 1.04 12.40 1.42 12.95 0.47 13.50 0.36 11.87 1.11 12.42 1.35 12.97 0.46 13.52 0.36 11.88 1.18 12.43 1.28 12.98 0.45 13.53 0.36 11.90 1.26 12.45 1.21 13.00 0.45 13.55 0.35 11.92 1.34 12.47 1.13 13.02 0.44 13.57 0.35 11.93 1,45 12,48 1,06 13,03 0.43 13,58 0,35 11.95 1.62 12.50 0.99 13.05 0.42 13.60 0.35 11.97 1.85 12.52 0.91 13.07 0.42 13.62 0.35 11.98 2.16 12.53 0.84 13.08 0.41 13.63 0.34 12.00 2.55 12.55 0.78 13.10 0.41 13.65 0.34 12.02 2.99 12.57 0.73 13.12 0.41 13.67 0.34 12.03 3.42 12.58 0.69 13.13 0.40 13.68 0.34 12.05 3.78 12.60 0.66 13.15 0.40 13.70 0.34 12.07 4.01 12.62 0.64 13.17 0.40 13.72 0.33 12.08 4.08 << 12.63 0.62 13.18 0.40 13.73 0.33 12.10 3.98 12.65 0.61 13.20 0.40 13.75 0.33 Continues on next page... ::s f fExisting Conditions Page 2 Hydrograph Discharge Table fTime -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) f13.77 0.33 14.60 0.26 13.78 0.33 14.62 0.26 f 13.80 0.32 14.63 0.25 13.82 0.32 14.65 0.25 13.83 0.32 14.67 0.25 13.85 0.32 14.68 0.25 f 13.87 0.31 13.88 0.31 13.90 0.31 ...End ' 13.92 0.31 13.93 0.31 13.95 0.30 13.97 0.30 f 13.98 0.30 14.00 0.30 14.02 0.30 14.03 0.29 f 14.05 0.29 14.07 0.29 14.08 0.29 f 14.10 0.29 14.12 0.29 14.13 0.28 14.15 0.28 f 14.17 0.28 14.18 0.28 14.20 0.28 14.22 0.28 f 14.23 0.28 14.25 0.28 14.27 0.28 14.28 0.28 f 14.30 0.27 14.32 0.27 14.33 0.27 f 14.35 0.27 14.37 0.27 14.38 0.27 14.40 0.27 f 14.42 0.27 14.43 0.27 14.45 0.27 14.47 0.26 f 14.48 0.26 14.50 0.26 14.52 0.26 f 14.53 0.26 14.55 0.26 14.57 0.26 14.58 0.26 f f Mfg Hydrograph Report Page 1 Hyd. No. 2 Proposed Conditions Hydrograph type = SCS Runoff Peak discharge = 8.41 cfs Storm frequency = 10 yrs Time interval = 1 min Drainage area = 1.8 ac Curve number = 96 ' Basin Slope = 0 % Hydraulic length. = 0 ft Tc method = USER Time of conc. (Tc) = 5 min Total precip. = 4.70 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Total Volume=28,510 cuft,0.655 acft ' Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 8.85 0.25 9.40 0.31 9.95 0.37 10.50 0.47 8.87 0.25 9.42 0.31 9.97 0.37 10.52 0.47 8.88 0.26 9.43 0.31 9.98 0.37 10.53 0.48 8.90 0.26 9.45 0.31 10.00 0.37 10.55 0.48 ' 8.92 0.26 9.47 0.32 10.02 0.37 10.57 0.48 8.93 0.26 9.48 0.32 10.03 0.38 10.58 0.49 8.95 0.26 9.50 0.32 10.05 0.38 10.60 0.49 ' 8.97 0,26 9.52 0.32 10.07 0,38 10.62 0,49 8.98 0.27 9.53 0.32 10.08 0.38 10.63 0.50 9.00 0.27 9.55 0.32 10.10 0.39 10.65 0.50 9.02 0.27 9.57 0.33 10.12 0.39 10.67 0.51 ' 9.03 0.27 9.58 0.33 10.13 0.39 10.68 0.51 9.05 0.27 9.60 0.33 10.15 0.40 10.70 0.51 9.07 0.27 9.62 0.33 10.17 0.40 10.72 0.52 9.08 0.28 9.63 0.33 10.18 0.40 10.73 0.52 ' 9.10 0.28 9.65 0.34 10.20 0.41 10.75 0.52 9.12 0.28 9.67 0.34 10.22 0.41 10.77 0.53 9.13 0.28 9.68 0.34 10.23 0.41 10.78 0.53 9.15 0,28 9,70 0,34 10,25 0,42 10.80 0.53 ' 9.17 0.28 9.72 0.34 10.27 0.42 10.82 0.54 9.18 0.29 9.73 0.34 10.28 0.42 10.83 0.54 9.20 0.29 9.75 0.35 10.30 0.43 10.85 0.54 ' 9.22 0.29 9.77 0.35 10.32 0.43 10.87 0.55 9.23 0.29 9.78 0.35 10.33 0.43 10.88 0.55 9.25 0.29 9.80 0.35 10.35 0.44 10.90 0.56 9.27 0.29 9.82 0.35 10.37 0.44 10.92 0.56 9.28 0.30 9.83 0.35 10.38 0.45 10.93 0.56 9.30 0.30 9.85 0.36 10.40 0.45 10.95 0.57 9.32 0.30 9.87 0.36 10.42 0.45 10.97 0.57 9.33 0.30 9.88 0.36 10.43 0.46 10.98 0.57 ' 9.35 0.30 9.90 0.36 10.45 0.46 11.00 0.58 9.37 0.31 9.92 0.36 10.47 0.46 11.02 0.58 9.38 0.31 9.93 0.37 10.48 0.47 11.03 0.59 Continues on next page... ' Proposed Conditions Page 2 Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) ' 11.05 0.59 11.88 3.30 12.72 0.92 13.55 0.54 11.07 0.60 11.90 3.43 12.73 0.91 13.57 0.53 11.08 0.61 11.92 3.58 12.75 0.89 13.58 0.53 ' 11.10 0.62 11.93 3.79 12.77 0.88 13.60 0.53 11.12 0.63 11.95 4.11 12.78 0.87 13.62 0.52 11.13 0.64 11.97 4.57 12.80 0.85 13.63 0.52 ' 11.15 0.65 11.98 5.20 12.82 0.84 13.65 0.52 11.17 0.66 12.00 5.95 12.83 0.83 13.67 0.51 11.18 0.68 12.02 6.77 12.85 0.81 13.68 0.51 11.20 0.69 12.03 7.54 12.87 0.80 13.70 0.50 11.22 0.70 12.05 8.12 12.88 0.79 13.72 0.50 11.23 0.72 12.07 8.41 << 12.90 0.77 13.73 0.50 11.25 0.73 12.08 8.35 12.92 0.76 13.75 0.49 ' 11.27 0.74 12.10 7.98 12.93 0.75 13.77 0.49 11.28 0.76 12.12 7.39 12.95 0.73 13.78 0.49 11.30 0.77 12.13 6.67 12.97 0.72 13.80 0.48 11.32 0.78 12.15 5.92 12.98 0.71 13.82 0.48 11.33 0.79 12.17 5.23 13.00 0.69 13.83 0.48 11.35 0.81 12.18 4.67 13.02 0.68 13.85 0.47 11.37 0.82 12.20 4.24 13.03 0.67 13.87 0.47 11.38 0.83 12.22 3.92 13.05 0.66 13.88 0.47 11.40 0.85 12.23 3.69 13.07 0.65 13.90 0.46 11.42 0.86 12.25 3.52 13.08 0.64 13.92 0.46 11.43 0.87 12.27 3.38 13.10 0.63 13.93 0.46 11.45 0.89 12.28 3.25 13.12 0.63 13.95 0.45 11.47 0.90 12.30 3.13 13.13 0.62 13.97 0.45 11.48 0.91 12.32 3.00 13.15 0.62 13.98 0.45 11.50 0.93 12.33 2.87 13.17 0.62 14.00 0.44 ' 11.52 0.94 12.35 2.75 13.18 0.61 14.02 0.44 11.53 0.97 12.37 2.62 13.20 0.61 14.03 0.44 11.55 1.00 12.38 2.49 13.22 0.61 14.05 0.43 11.57 1.05 12.40 2.37 13.23 0.60 14.07 0.43 ' 11.58 1.13 12.42 2.24 13.25 0.60 14.08 0.43 11.60 1.21 12.43 2.11 13.27 0.59 14.10 0.42 11.62 1.31 12.45 1.99 13.28 0.59 14.12 0.42 11.63 1.42 12.47 1.86 13.30 0.59 14.13 0.42 11.65 1.54 12.48 1.73 13.32 0.58 14.15 0.42 11.67 1.66 12.50 1.61 13.33 0.58 14.17 0.42 11.68 1.79 12.52 1.48 13.35 0.58 14.18 0.42 ' 11.70 1.91 12.53 1.36 13.37 0.57 14.20 0.41 11.72 2.04 12.55 1.26 13.38 0.57 14.22 0.41 11.73 2.16 12.57 1.17 13.40 0.57 14.23 0.41 11.75 2.29 12.58 1.11 13.42 0.56 14.25 0.41 11.77 2.41 12.60 1.06 13.43 0.56 14.27 0.41 11.78 2.54 12.62 1.02 13.45 0.56 14.28 0.41 11.80 2.66 12.63 0.99 13.47 0.55 14.30 0.40 11.82 2.79 12.65 0.97 13.48 0.55 14.32 0.40 11.83 2.92 12.67 0.96 13.50 0.55 14.33 0.40 11.85 3.04 12.68 0.95 13.52 0.54 14.35 0.40 11.87 3.17 12.70 0.93 13.53 0.54 14.37 0.40 Continues on next page... ' Proposed Conditions Page 3 Hydrograph Discharge Table ' Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) ' 14.38 0.40 15.22 0.31 14.40 0.39 15.23 0.31 14.42 0.39 15.25 0.31 14.43 0.39 15.27 0.31 14.45 0.39 15.28 0.31 14.47 0.39 15.30 0.30 14.48 0.39 15.32 0.30 14.50 0.38 15.33 0.30 14.52 0.38 15.35 0.30 14.53 0.38 15.37 0.30 14.55 0.38 15.38 0.30 14.57 0.38 15.40 0.29 14.58 0.38 15.42 0.29 14.60 0.37 15.43 0.29 14.62 0.37 15.45 0.29 14.63 0.37 15.47 0.29 14.65 0.37 15.48 0.29 ' 14.67 0.37 15.50 0.28 14.68 0.37 15.52 0.28 14.70 0.36 15.53 0.28 ' 14.72 0.36 15.55 0.28 14.73 0.36 15.57 0.28 14.75 0.36 15.58 0.28 14.77 0.36 15.60 0.27 14.78 0.36 15.62 0.27 14.80 0.35 15.63 0.27 14.82 0.35 15.65 0.27 14.83 0.35 15.67 0.27 14.85 0.35 15.68 0.27 14.87 0.35 15.70 0.26 14.88 0.35 15.72 0.26 14.90 0.34 15.73 0.26 ' 14.92 0.34 15.75 0.26 14.93 0.34 15.77 0.26 14.95 0.34 15.78 0.26 ' 14.97 0.34 15.80 0.25 14.98 0.34 15.82 0.25 15.00 0.33 15.83 0.25 15.02 0.33 ' 15.03 0.33 15.05 0.33 ...End 15.07 0.33 15.08 0.33 15.10 0.32 15.12 0.32 15.13 0.32 15.15 0.32 15.17 0.32 15.18 0.32 15.20 0.31 Hydrograph Report Page 1 Hyd. No. 3 Ellington Road Hydrograph type = Reservoir Peak discharge = 2.45 cfs Storm frequency = 10 yrs Time interval = 1 min tInflow hyd. No. = 2 Reservoir name = Ellington Road Max. Elevation = 72.08 ft Max. Storage = 5,228 cuft ' Storage Indication method used. Total Volume=28,505 cuft,0.654 acft Hydrograph Discharge Table ' Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 8. 0.26 71.19 0.25 ---- 0.25 8.90 90 0.26 71.19 0.25 0.25 ----- ----- _ -- ----- 8.92 0.26 71.19 0.26 0.26 8.93 0.26 71.19 0.26 ----- ----- ----- ----- ----- 0.26 ' 8.95 0.26 71.19 0.26 ----- ----- ---- ----- ----- 0.26 8.97 0.26 71.19 0.26 ----- ----- ----- ----- ----- 0.26 8.98 0.27 71.19 0.26 ----- ----- ----- ----- ---- 0.26 9.00 0.27 71.19 0.26 ----- ----- ----- ----- ----- 0.26 ' 9.02 0.27 71.19 0.27 ---- 0.27 ---- ---_- ----- ----- 9.03 0.27 71.19 0.27 0.27 9.05 0.27 71.19 0.27 ----- ----- ----- ----- ----- 0.27 ' 9.07 0.27 71.19 0.21 ----- ----- ----- ----- ----- 0.27 9.08 0.28 71.19 0.27 ----- ----- ----- ----- ----- 0.27 9.10 0.28 71.19 0.27 ----- ----- ----- ----- ----- 0.27 9.12 0.28 71.19 0.28 ----- ----- ----- ----- ----- 0.28 9.13 0.28 71.19 0.28 ---- ----- ----- ----- ---- 0.28 9.15 0.28 71.19 0.28 ----- ----- ----- ----- ----- 0.28 9.17 0.28 71.19 0.28 ----- ----- ----- ----- ----- 0.28 9.18 0.29 71.19 0.28 ----- ----- ----- ----- ----- 0.28 9.20 0.29 71.19 0.28 0.28 ----- ----- ----- ---- ----- 9.22 0.29 71.19 0.29 0.29 9.23 0.29 71.19 0.29 ----- ----- ----- ----- ----- 0.29 ' 9.25 0.29 71.19 0.29 ---- ----- ---- 0.29 9.27 0.29 71.19 0.29 0.29 ----- ----- 9.28 0.30 71.19 0.29 0.29 9.30 0.30 71.19 0.29 ----- ----- ----- ----- ----- 0.29 ' 9.32 0.30 71.19 0.30 ----- ----- ----- ----- . ----- 0.30 9.33 0.30 71.19 0.30 ----- ----- ----- ----- ----- 0.30 9.35 0.30 71.19 0.30 ----- ----- ----- ----- ----- 0.30 9.37 0.31 71.19 0.30 ----- ----- ----- ----- ----- 0.30 9.38 0.31 71.19 0.3.0 0.30 ----- ----- ----- ----- ----- 9.40 0.31 71.19 0.31 0.31 9.42 0.31 71.19 0.31 ----- ----- ----- ----- ----- 0.31 9.43 0.31 71.19 0.31 ----- _=___ ----- ==___ ----- 0.31 9.45 0.31 71.19 0.31 0.31 9.47 0.32 71.19 0.31 0.31 9.48 0.32 71.19 0.31 ----- ----- ----- ----- ----- 0.31 Continues on next page... ZN Ellington Road Page 2 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 9.50 0.32 71.19 0.32 ----- ----- ---- ----- ----- 0.32 9.52 0.32 71.19 0.32 ----- ----- ----- ----- ----- 0.32 9.53 0.32 71.19 0.32 ----- ----- ----- ----- ----- 0.32 9.55 0.32 71.19 0.32 _--- 0.32 ---- ----- ----- ----- 9.57 0.33 71.19 0.32 0.32 9.58 0.33 71.20 0.32 ----- ---- ----- ----- ---- 0.32 9.60 0.33 71.20 0.33 ----- -_-- ---- ----- ----- 0.33 9.62 0.33 71.20 0.33 0.33 9.63 0.33 71.20 0.33 ----- ----- ----- ----- ----- 0.33 9.65 0.34 71.20 0.33 ----- ----- ----- ----- ----- 0.33 ' 9.67 0.34 71.20 0.33 __--_ _____ _____ _____ ____ 0.33 9.68 0.34 71.20 0.34 0.34 9.70 0.34 71.20 0.34 ----- ----- ----- ----- ----- 0.34 ' 9.72 0.34 71.20 0.34 0.34 9.73 0.34 71.20 0.34 0.34 ----- ---- ---- ----- ----- 9.75 0.35 71.20 0.34 0.34 9.77 0.35 71.20 0.34 ----- ----- ----- ----- ----- 0.34 ' 9.78 0.35 71.20 0.35 ---Y 0.35 ----- ----- -_-- ----- 9.80 0.35 71.20 0.35 0.35 9.82 0.35 71.20 0.35 ----- ----- ----- ----- ----- 0.35 9.83 0.35 71.20 0.35 ----- ----- ----- ----- ----- 0.35 9.85 0.36 71.20 0.35 ----- ----- ----- ----- ----- 0.35 9.87 0.36 71.20 0.35 ----- ----- ----- ----- ----- 0.35 9.88 0.36 71.20 0.36 ----- ----- ----- ----- ----- 0.36 ' 9.92 0.36 71.20 0.36 ----- ----- ----- =____ ----- 0.36 9.92 0.36 71.20 0.36 0.36 9.93 0.37 71.20 0.36 0.36 9.95 0.37 71.20 0.36 ----- ----- ----- ----- ---- 0.36 9.9 0.37 71.20 0.37 0.37 9.98 ----- ----- -----0.37 71.20 0.37 ----- 0.37 ----- 10.00 0.37 71.20 0.37 ----- ----- ----- ----- 0.37 10.02 0.37 71.20 0.37 ----- ----- ----- ----- ----- 0.37 ' 10.03 0.38 71.20 0.37 ----- ----- ----- ---- ----- 0.37 10.05 0.38 71.20 0.37 ----- ----- ----- ---- ----- 0.37 10.07 0.38 71.20 0.38 ----- ----- ----- ----- ----- 0.38 10.08 0.38 71.20 0.38 ----- ----- ----- ----- ----- 0.38 10.10 0.39 71.20 0.38 ----- ----- ----- ----- ----- 0.38 10.12 0.39 71.20 0.38 ----- ----- ----- ----- ----- 0.38 10.13 0.39 71.20 0.39 ----- ----- ----- ----- ----- 0.39 ' 10.17 0.40 71.20 0.39 __=__ _____ _ �~_ 0.39 10.17 0.40 71.20 0.39 0.39 10.18 0.40 71.20 0.40 ----- ----- - -- ---- 0.40 10.20 0.41 71.20 0.40 ----- ----- ----- ----- ----- 0.40 1 10.22 0.41 71.20 0.40 _____ _____ _____ ____ _____ 0.40 10.23 0.41 71.20 0.41 0.41 10.25 0.42 71.20 0.41 ----- ----- ----- ----- ----- 0.41 10.28 0.42 71.21 0.41 =__ - ----- ----- _=-- _- 0.41 10.28 0.42 71.21 0.42 0.42 10.30 0.43 71.21 0.42 0.42 10.32 0.43 71.21 0.42 ----- ----- ----- ----- ----- 0.42 Continues on next page... Ellington Road Page 3 Hydrograph Discharge Table ' Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) ' 10.33 0.43 71.21 0.43 ----- ----- ----- ----- ----- 0.43 10.35 0.44 71.21 0.43 ----- ----- ----- ----- ----- 0.43 10.37 0.44 71.21 0.43 ----- ----- ----- ----- ----- 0.43 10.38 0.45 71.21 0.44 ----- ----- ----- ----- ----- 0.44 10.40 0.45 71.21 0.44 ----- ----- ----- ----- ----- 0.44 10.42 0.45 71.21 0.45 ----- ---- ----- ----- ----- 0.45 ' 10.43 0.46 71.21 0.45 ----- ----- ----- ----- ----- 0.45 10.45 0.46 71.21 0.45 ----- ----- ----- ----- ----- 0.45 10.47 0.46 71.21 0.46 ----- ----- ----- ----- ----- 0.46 10.48 0.47 71.21 0.46 ----- ----- ----- ----- ----- 0.46 10.50 0.47 71.21 0.46 =____ _____ _=__= _____ _____ 0.46 10.52 0.47 71.21 0.47 0.47 10.53 0.48 71.21 0.47 ----- ----- ----- ----- ----- 0.47 10.5 0.48 71.21 0.4 ---- ----- 0.4 10.57 0.48 71.21 0.488 0.488 10.58 0.49 71.21 0.48 -- ----- ----- 0.48 10.60 0.49 71.21 0.48 ----- ----- ----- ----- ----- 0.48 ' 10.62 0.49 71.21 0.49 ----- ----- ----- ----- ----- 0.49 10.63 0.50 71.21 0.49 ----- ----- ---- ----- ----- 0.49 10.65 0.50 71.21 0.49 ----- ----- ----- ----- ----- 0.49 10.67 0.51 71.21 0.50 ----- ----- ----- ----- ---- 0.50 10.68 0.51 71.21 0.50 _____ _N__ _____ _____ _=___ 0.50 10.70 0.51 71.21 0.51 0.51 10.72 0.52 71.22 0.51 ---- ----- ----- ----- ---- 0.51 10.73 0.52 71.22 0.51 ----- ----- ---- ----- ----- 0.51 ' 10.75 0.52 71.22 0.52 ---- ----- ----- ----- ----- 0.52 10.77 0.53 71.22 0.52 ----- ----- ----- ----- ----- 0.52 10.78 0.53 71.22 0.52 ----- ----- ----- ----- ----- 0.52 ' 10.80 0.53 71.22 0.53 ---=- ----- ---- ----- ----- 0.53 10.82 0.54 71.22 0.53 ----- ----- ----- ----- ----- 0.53 10.83 0.54 71.22 0.53 ----- ----- ----- ----- ----- 0.53 10.85 0.54 71.22 0.54 ----- ----- ----- ----- ----- 0.54 10.87 0.55 71.22 0.54 ----- ----- ---- ----- ----- 0.54 10.88 0.55 71.22 0.54 ----- ----- ---- ----- ---- 0.54 10.90 0.56 71.22 0.55 ----- ----- ----- ----- ----- 0.55 10.92 0.56 71.22 0.55 ----- ----- ----- ----- ----- 0.55 ' 10.93 0.56 71.22 0.56 _____ _____ _N__ _____ ____ 0.56 10.95 0.57 71.22 0.56 0.56 10.97 0.57 71.22 0.56 ----- ---- ---- ---- ----- 0.56 10.98 0.57 71.22 0.57 ----- ----- ----- ----- ----- 0.57 11.00 0.58 71.22 0.57 ----- ----- ----- ----- ----- 0.57 11.02 0.58 71.22 0.57 ----- ---- ----- ----- ----- 0.57 11.03 0.59 71.22 0.58 ----- ----- ----- ----- ----- 0.58 1 11.05 0.59 71.22 0.58 0.58 ---- ----- ----- ----- ----- 11.07 0.60 71.22 0.59 0.59 11.08 0.61 71.22 0.59 ----- ----- ----- ----- ----- 0.59 11.10 0.62 71.23 0.60 ----- ----- ----- ----- ----- 0.60 11.12 0.63 71.23 0.61 ----- ----- ----- ----- ----- 0.61 11.13 0.64 71.23 0.62 ----- ----- ----- ----- ----- 0.62 11.15 0.65 71.23 0.63 ----- ----- ----- ----- ----- 0.63 Continues on next page... r Ellington Road Page 4 Hydrograph Discharge Table ' Time Inflow Elevation Culy.A Culv. B Culy.C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 11.17 0.66 71.23 0.64 ----- ----- ----- ----- ----- 0.64 11.18 0.68 71.23 0.65 ---- ----- ----- ----- ----- 0.65 11.22 0.70 71.23 0.68 ~-== ----- ===~ ----- ----- 0.68 11.22 0.70 71.23 0.68 0.68 11.23 0.72 71.23 0.69 0.69 11.25 0.73 71.24 0.70 ----- ----- ----- ----- ----- 0.70 ' 11-.27 0.74 71.24 0.72 ---- 0.72 11.28 0.76 71.24 0.73 ----- ---- ----- ----- 0.73 11.30 0.77 71.24 0.74 ---- ----- ----- ----- ----- 0.74 11.32 0.78 71.24 0.76 ---- ----- ----- ----- ----- 0.76 11.33 0.79 71.24 0.77 _--- 0.77 11.35 0.81 71.24 0.78 ----- ----- ----- ----- 0.78 11.37 0.82 71.25 0.78 ---- ----- ----- ----- ----- 0.78 11. 0.83 71.25 0. N 0.79 ----- ----- ----- ----- 11.40 40 0.85 71.25 0.80 80 0.80 80 11.42 0.86 71.25 0.81 0.81 11.43 0.87 71.26 0.82 ---- ----- ----- ----- ----- 0.82 ' 11.45 0.89 71.26 0.83 ---- ----- ----- ----- ----- 0.83 11.47 0.90 71.26 0.84 ----- ----- ----- ----- ----- 0.84 11.48 0.91 71.27 0.86 ---- ----- ----- ---- ----- 0.86 11.50 0.93 71.27 0.87 ---- ----- ----- ----- ----- 0.87 11.52 0.94 71.27 0.88 ---- ----- ----- ----- ----- .0.88 11.53 0.97 71.28 0.89 ---- ----- ----- ----- ----- 0.89 11.55 1.00 71.28 0.91 ----- ----- ----- ---- ----- 0.91 ' 11.5 1. 71.29 0.93 _--- ---- 0.93 11.58 1.13 13 71.29 0.96 0.96 11.60 1.21 71.30 1.00 ---- ----- ----- 1.00 11.62 1.31 71.32 1.05 ---- ----- ----- ----- ----- 1.05 11.63 1.42 71.33 1.11 ___ __=__ -__= _____ _____ 1.11 11.65 1.54 71.35 1.16 1.16 11.67 1.66 71.37 1.23 ----- ----- ----- ----- ----- 1.23 11.68 1.79 71.40 1.30 ---- ----- ----- ----- ----- 1.30 11.70 1.91 71.43 1.38 _____ ___=_ _____ ____= 1.38 11.72 2.04 71.46 1.45 1.45 11.73 2.16 71.49 1.53 ---- ----- ----- ----- ----- 1.53 11.75 2.29 71.52 1.61 ----- ----- ----- ----- ----- 1.61 11.77 2.41 71.56 1.69 ---__ ____ _____ =�_= __=__ 1.69 11.78 2.54 71.60 1.78 1.78 11.80 2.66 71.64 1.86 ---- ----- ----- ----- ----- 1.86 11.82 2.79 71.69 1.94 ----- ----- ----- ----- ----- 1.94 11.83 2.92 71.74 2.03 ----- ----- ----- ----- ----- 2.03 11.85 3.04 71.79 2.11 ----- ----- ----- ----- ----- 2.11 11.87 3.17 71.84 2.20 ----- ----- ----- ----- ----- 2.20 ' 11.88 3.30 71.89 2.24 ---- ----- ----- ----- ----- 2.24 11.90 3.43 71.95 2.34 2.34 11.92 3.58 72.00 2.45 ---- ----- ----- ----- ----- 2.45 11.93 3. 72.00 2.45 ----- 2.45 11.95 4.11 11 72.00 2.45 2.45 Y--- ----- ----- ----- 11.97 4.57 72.01 2.45 2.45 11.98 5.20 72.01 2.45 ----- ----- ----- ----- ----- 2.45 i Continues on next page... Ellington Road Page 5 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 12.00 5.95 72.01 2.45 ----- ----- ----- ----- ----- 2.45 12.02 6.77 72.02 2.45 ----- ----- ----- ----- ----- 2.45 12.03 7.54 72.02 2.45 ----- ----- ----- ----- ----- 2.45 12.05 8.12 72.03 2.45 ----- ----- ----- ----- ----- 2.45 12.07 8.41 << 72.03 2.45 ----- ----- ---- ---- ----- 2.45 12.08 8.35 72.04 2.45 ----- ----- ----- ----- ----- 2.45 12.1 7. 72.05 2.45 ----- 2.45 12.12 7.39 39 72.05 2.45 2.45 ----- ----- ----- ---- 12.13 6.67 72.06 2.45 - 2.45 12.15 5.92 72.06 2.45 ----- ----- ----- ----- ----- 2.45 12.17 5.23 72.07 2.45 ----- ----- ----- ----- ----- 2.45 12.18 4.67 72.07 2.45 ----- ----- ----- ----- ----- 2.45 12.20 4.24 72.07 2.45 ----- ----- ---- ----- ----- 2.45 12.22 3.92 72.07 2.45 ----- ----- ----- ----- ----- 2.45 12.23 3.69 72.08 2.45 ---- ----- ----- ----- ----- 2.45 12.25 3.52 72.08 2.45 ----- ----- ----- ----- ----- 2.45 12.27 3.38 72.08 2.45 ----- ----- ----- ----- ----- 2.45 ' 12.28 3.25 72.08 2.45 ---- ----- ----- ---- ----- 2.45 12.30 3.13 72.08 2.45 ----- ----- ----- ----- ----- 2.45 12.32 3.00 72.08 2.45 ----- ----- ----- ----- ----- 2.45 12.33 2.87 72.08 2.45 ----- ----- ----- ----- ----- 2.45 12.35 2.75 72.08 2.45 ----- ----- ----- ----- ----- .2.45 12.37 2.62 72.08 2.45 ----- ----- ----- ----- ---- 2.45 12.38 2.49 72.08 2.45 ----- ----- ----- ----- ----- 2.45 << 12.40 2.37 72.08 2.45 ----- ----- ----- ----- ----- 2.45 12.42 2.24 72.08 2.45 -N-- -N-- 2.45 _--- ----- --_- 12.43 2.11 72.08 2.45 2.45 12.45 1.99 72.08 2.45 ----- ----- ----- ----- ----- 2.45 12.4 1. 72.08 2.45 2.45 12.48 1.73 73 72.08 2.45 2.45 ----- ----- ----- -_-- _--- 12.50 1.61 72.08 2.45 2.45 12.52 1.48 72.08 2.45 ----- ----- ----- ---- ----- 2.45 ' 12.53 1.36 72.08 2.45 2.45 ----- _-_ ----- --- ----- 12.55 1.26 72.07 2.45 2.45 12.57 1.17 72.07 2.45 ----- ----- ----- ----- ----- 2.45 12.58 1.11 72.07 2.45 ----- ----- ----- ----- ----- 2.45 12.60 1.06 72.07 2.45 -_-- 2.45 12.62 1.02 72.07 2.45 ----- ----- ----- ----- 2.45 12.63 0.99 72.07 2.45 ----- ----- ----- ----- ----- 2.45 12.65 0.97 72.07 2.45 ----- ----- ----- ----- ----- 2.45 12.67 0.96 . 72.06 2.45 ----- ----- ----- ----- ----- 2.45 12.68 0.95 72.06 2.45 ----- ----- ----- ----- ----- 2.45 12.70 0.93 72.06 2.45 ----- ----- ----- ----- ----- 2.45 12.72 0.92 72.06 2.45 _-- 2.45 ----- ----- ----- ----- 12.73 0.91 72.06 2.45 2.45 12.75 0.89 72.06 2.45 ----- ----- ----- ----- ----- 2.45 12.77 0.88 72.05 2.45 ----- ----- ----- ----- ----- 2.45 ' 12.78 0.87 72.05 2.45 ----- ----- ----- ----- ----- 2.45 12.80 0.85 72.05 2.45 ----- ----- ----- ---- ----- 2.45 12.82 0.84 72.05 2.45 ----- ----- ----- ----- ----- 2.45 Continues on next page... Ellington Road Page 6 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 12.83 0.83 72.05 2.45 ----- ----- ----- ----- ----- 2.45 12.85 0.81 72.04 2.45 ----- ----- ---- ----- ----- 2.45 12.87 0.80 72.04 2.45 ----- ----- ----- ----- ----- 2.45 12.88 0.79 72.04 2.45 ----- ----- ----- ----- ----- 2.45 12.90 0.77 72.04 2.45 ----- ----- ----- ----- ----- 2.45 12.92 0.76 72.04 2.45 ----- ----- ----- ----- ----- 2.45 12.93 0.75 72.03 2.45 ----- ----- ----- ---- ----- 2.45 12.95 0.73 72.03 2.45 2.45 12.97 0.72 72.03 2.45 ----- ----- ----- ----- ----- 2.45 12.98 0.71 72.03 2.45 ----- ----- ----- ----- ----- 2.45 13.00 0.69 72.03 2.45 ----- ----- ----- ----- ----- 2.45 13.02 0.68 72.02 2.45 ----- ----- ----- ----- ----- 2.45 13.03 0.67 72.02 2.45 ----- ----- ----- ----- ----- 2.45 13.05 0.66 72.02 2.45 ----- ----- ---- ----- ----- 2.45 ' 13.07 0.65 72.02 2.45 ----- ----- ---- ---- ----- 2.45 13.08 0.64 72.02 2.45 ----- ----- ----- ----- ----- 2.45 13.10 0.63 72.01 2.45 ----- ----- ---- ----- ----- 2.45 13.12 0.63 72.01 2.45 ---- ----- ----- ----- ----- 2.45 13.13 0.62 72.01 2.45 ----- ----- ----- ----- ----- 2.45 13.15 0.62 72.01 2.45 ----- ----- ----- ----- ----- 2.45 13.17 0.62 72.01 2.45 ----- ----- ----- ----- ----- 2.45 13.18 0.61 72.00 2.45 . 2.45 --_- 13.20 0.61 72.00 2.45 ----- ----- ----- ----- 2.45 13.22 0.61 72.00 2.45 ----- ---- ----- ----- ----- 2.45 13.23 0.60 71.91 2.25 ----- ----- ----- ----- ----- 2.25 13.25 0.60 71.82 2.17 ----- ---- ----- ----- ----- 2.17 13.27 0.59 71.74 2.03 ----- ----- ----- ----- ----- 2.03 13.28 0.59 71.66 1.90 ----- ----- ----- ---- ----- 1.90 13.30 0.59 71.60 1.76 ----- ----- ---- ----- ----- 1.76 13.32 0.58 71.53 1.63 ----- ----- ----- ----- ----- 1.63 13.33 0.58 71.48 1.51 ----- ----- ----- ----- ----- 1.51 13.35 0.58 71.43 1.40 ----- ----- ----- ----- ----- 1.40 13.37 0.57 71.39 1.28 ----- ---- ----- ----- ----- 1.28 13.38 0.57 71.36 1.18 ----- ----- ----- ----- ----- 1.18 13.40 0.57 71.33 1.09 ----- ----- ----- ---- ----- 1.09 13.42 0.56 71.30 0.99 ----- ----- ----- ----- ----- 0.99 13.43 0.56 71.28 0.91 0.91 ----- ----- ----- ----- ----- 13.45 0.56 71.26 0.84 0.84 13.47 0.55 71.25 0.79 ----- ----- ----- ----- ----- 0.79 13.48 0.55 71.24 0.71 ---- ----- ----- ----- ----- 0.71 13.50 0.55 71.23 0.65 ----- ----- ----- ----- ----- 0.65 13.52 0.54 71.23 0.60 ----- ----- ----- ----- ----- 0.60 13.53 0.54 71.22 0.58 ----- ----- ----- ----- ----- 0.58 13.55 0.54 71.22 0.56 ==___ _____ _____ ____ _=_=_ 0.56 13.57 0.53 71.22 0.55 0.55 13.58 0.53 71.22 0.54 ----- ----- ----- ----- ----- 0.54 13.60 0.53 71.22 0.54 ----- ----- ----- ----- ----- 0.54 13.62 0.52 71.22 0.53 0.53 ----- ----- ----- ----- ----- 13.63 0.52 71.22 0.53 0.53 13.65 0.52 71.22 0.52 ----- ----- ----- ----- ----- 0.52 Continues on next page... Ellington Road Page 7 Hydrograph Discharge Table Time Inflow Elevation Culv.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 13.67 0.51 71.22 0.52 0.52 _--__ ----- _---_ _-_-_ --_-- 13.68 0.51 71.22 0.52 0.52 13.70 0.50 71.22 0.51 ----- ----- ----- ----- ----- 0.51 13.72 0.50 71.22 0.51 0.51 ----- _-_-- _---_ 13.73 0.50 71.21 0.50 ----- ----- 0.50 13.75 0.49 71.21 0.50 ----- ----- ----- ----- ---- 0.50 13.77 • 0.49 71.21 0.50 ----- ----- ----- ----- ----- 0.50 13.78 0.49 71.21 0.49 0.49 ----- -_-- ----- ----- ----- 13.80 0.48 71.21 0.49 0.49 13.82 0.48 71.21 0.49 ----- ----- ----- ----- ----- 0.49 13.83 0.48 71.21 0.48 ----- ----- ----- ---- ----- 0.48 13.85 0.47 71.21 0.48 ----- ----- ----- ----- ----- 0.48 13.87 0.47 71.21 0.48 ----- ----- ----- ----- ----- 0.48 13.88 0.47 71.21 0.47 ---- ----- ----- ----- ----- 0.47 13.90 0.46 71.21 0.47 -___ _____ _____ ____ _=___ 0.47 13.92 0.46 71.21 0.47 0.47 13.93 0.46 71.21 0.46 ----- ----- ----- ----- ----- 0.46 13.95 0.45 71.21 0.46 ----- ----- ----- ----- ----- 0.46 13.97 0.45 71.21 0.46 __-- 0.46 ----- ----- --_- ---_- 13.98 0.45 71.21 0.45 0.45 14.00 0.44 71.21 0.45 ----- ----- ----- ----- ----- 0.45 14.02 0.44 71.21 0.45 ----- ----- ----- ----- ----- . 0.45 14.03 0.44 71.21 0.44 ----- ----- 0.44 ----- ----- ----- 14.05 0.43 71.21 0.44 ----- ----- 0.44 14.07 0.43 71.21 0.44 ----- ----- ----- ---- ----- 0.44 14.08 0.43 71.21 0.43 0.43 _-___ _---_ _--__ _---- ___-- 14.10 0.42 71.21 0.43 0.43 14.12 0.42 71.21 0.43 ----- ----- ----- ----- ----- 0.43 14.13 0.42 71.21 0.43 ----- ----- ----- ---- ----- 0.43 14.15 0.42 71.21 0.42 ----- ----- _---- -___ _-_-- 0.42 14.17 0.42 71.21 0.42 0.42 14.18 0.42 71.21 0.42 ----- ----- ----- ----- ----- 0.42 14.22 0.41 71.21 0.42 --- _ ----- ----- ---- 0.42 14.22 0.41 71.21 0.42 0.42 14.23 0.41 71.20 0.41 0.41 14.25 0.41 71.20 0.41 ----- ----- ----- ----- ----- 0.41 14.27 0.41 71.20 0.41 ____ �_ 0.41 14.28 0.41 71.20 0.41 _--__ _---- _--- 0.41 14.30 0.40 71.20 0.41 ----- ---_ ____ ____ ----- 0.41 14.32 0.40 71.20 0.41 ----- ----- ----- ----- ----- 0.41 14.33 0.40 71.20 0.40 _____ _____ _____ -__ -___ 0.40 14.35 0.40 71.20 0.40 0.40 14.37 0.40 71.20 0.40 ----- ----- ----- ----- ----- 0.40 14. 0. 71.20 0.40 ----- 0.40 14.40 40 0.3939 -----71.20 0.40 0.40 ----- _--_ _--- 14.42 0.39 71.20 0.40 ----- 0.40 14.43 0.39 71.20 0.39 ----- ----- ----- ----- ----- 0.39 14.45 0.39 71.20 0.39 0.39 ----_ ----- ---_- ----- 14.47 0.39 71.20 0.39 0.39 14.48 0.39 71.20 0.39 ----- ----- ----- ----- ----- 0.39 M Continues on next page... Ellington Road Page 8 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 14.50 0.38 71.20 0.39 ____ -___ --_- _-__- ----- 0.39 14.52 0.38 71.20 0.39 0.39 14.53 0.38 71.20 0.38 ----- ----- ----- ----- ----- 0.38 14.55 0.38 71.20 0.38 ----- 0.38 14.57 0.38 71.20 0.38 0.38 14.58 0.38 71.20 0.38 -_-- ----- ----- ----- 0.38 14.60 0.37 71.20 0.38 ----- ----- ----- ----- ----- 0.38 14.62 0.37 71.20 0.38 0.38 _____ --__- __-- __--_ ----- 14.63 0.37 71.20 0.37 0.37 14.65 0.37 71.20 0.37 ---- ----- ----- ----- ----- 0.37 14.67 0.37 71.20 0.37 ---- ----- ----- ----- ----- 0.37 14.68 0.37 71.20 0.37 ___- -_--- N--_ 0.37 -__- ---_- 14.70 0.36 71.20 0.37 0.37 14.72 0.36 71.20 0.37 ---- ----- ----- ----- ----- 0.37 14.73 0.36 71.20 0.36 ---- ----- ___ - ===== _ --- 0.36 14.75 0.36 71.20 0.36 0.36 14.77 0.36 71.20 0.36 0.36 14.78 0.36 71.20 0.36 ----- ----- ----- ----- ----- 0.36 14.80 0.35 71.20 0.36 _�--_ _____ _____ _____ _____ 0.36 14.82 0.35 71.20 0.36 0.36 14.83 0.35 71.20 0.35 ----- ----- ----- ----- ----- 0.35 14.85 0.35 71.20 0.35 ----- ----- ----- ----- ----- 0.35 14.87 0.35 71.20 0.35 ____ 0.35 __--_ --_-_ --_-- _---- 14.88 0.35 71.20 0.35 0.35 14.90 0.34 71.20 0.35 ----- ----- ----- ---- ----- 0.35 14.92 0.34 71.20 0.35 -�-- ----- 0.3 14.93 0.34 71.20 0.34 0.344 14.95 0.34 71.20 0.34 ----- --- ----- 0.34 14.97 0.34 71.20 0.34 ----- ----- ----- ----- ----- 0.34 14.98 0.34 71.20 0.34 0.34 ---_- ___-- ----- -_--- ----- 15.00 0.33 71.20 0.34 0.34 15.02 0.33 71.20 0.34 ----- ----- ----- ---- ----- 0.34 15.03 0.33 71.20 0.33 ---- ----- ----- ---- ----- 0.33 15.05 0.33 71.20 0.33 _____ _____ ____- N___ _____ 0.33 15.07 0.33 71.20 0.33 0.33 15.08 0.33 71.20 0.33 ----- ----- ----- ----- ----- 0.33 15.1 0.32 71.20 0.33 0.33 15.12 0.32 71.20 0.33 0.33 ----- ----- ----- ----- ----- 15.13 0.32 71.20 0.32 0.32 15.15 0.32 71.19 0.32 ---- ---- ----- ---- ----- 0.32 ' 15.17 0.32 71.19 0.32 ____ 0.32 ----- ---_- _--_- ----_ 15.18 0.32 71.19 0.32 0.32 15.20 0.31 71.19 0.32 --_ ----- ----- ----- 0.32 15.22 0.31 71.19 0.32 ----- ----- ----- ----- ----- 0.32 15.23 0.31 71.19 0.31 _____ _____ _____ _____ ____ 0.31 15.25 0.31 71.19 0.31 0.31 15.27 0.31 71.19 0.31 ----- ----- ----- ----- ----- 0.31 ' 15. 0.31 71.19 0.31 0.31 15.30 30 0.30 71.19 0.31 0.31 ----- ----- ----- ----- ----- 15.32 0.30 71.19 0.31 0.31 Continues on next page... r Ellington Road Page 9 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 15.33 0.30 71.19 0.30 0.30 ----- ----- ----- ----- __--- 15.35 0.30 71.19 0.30 0.30 15.37 0.30 71.19 0.30 ----- ----- ----- ----- ----- 0.30 15.38 0.30 71.19 0.30 _____ _-___ ____- ____ _____ 0.30 15.40 0.29 71.19 0.30 0.30 15.42 0.29 71.19 0.30 ---- ----- ----- ----- ----- 0.30 15.43 0.29 71.19 0.29 ----- ----- ----- ----- ----- 0.29 15.45 0.29 71.19 0.29 ---- ----- ----- ----- ----- 0.29 15.47 0.29 71.19 0.29 ----- ----- ----- ----- ----- 0.29 15.48 0.29 71.19 0.29 ----- ----- ----- ----- ----- 0.29 15.5 0.28 71.19 0.29 0.29 15.52 0.28 71.19 0.29 0.29 ----- ----- ----- M--- ----- 15.53 0.28 71.19 0.28 0.28 15.55 0.28 71.19 0.28 ---- ----- ----- ----- ----- 0.28 15.57 0.28 71.19 0.28 ----- ----- ----- ---- ----- 0.28 15.58 0.28 71.19 0.28 0.28 15.60 0.27 71.19 0.28 ----- ----- ----- ----- ----- 0.28 15.62 0.27 71.19 0.28 ---- ----- ----- ----- ----- 0.28 N 15.63 0.27 71.19 0.27 M 0.27 15.65 0.27 71.19 0.27 --- ----- ----- ----- ----- 0.27 15.67 0.27 71.19 0.27 ----- ---- ----- ---- ----- 0.27 15.68 0.27 71.19 0.27 ----- ----- ----- ----- ---- 0.27 15.70 0.26 71.19 0.27 ----- ----- ----- ----- ---- 0.27 15.72 0.26 71.19 0.27 ---- ----- ----- ----- ----- 0.27 15.73 0.26 71.19 0.26 ---- ----- ----- ----- ----- 0.26 15.75 0.26 71.19 0.26 ---- ----- ----- ----- ----- 0.26 15.77 0.26 71.19 0.26 ---- ----- ----- ----- ----- 0.26 15.78 0.26 71.19 0.26 ----- ----- ----- ---- ----- 0.26 15.80 0.25 71.19 0.26 ----- ----- ----- ----- ----- 0.26 15.82 0.25 71.19 0.26 ----- ----- ----- ----- ----- 0.26 15.83 0.25 71.19 0.25 ----- ----- ----- ----- ----- 0.25 15.85 0.25 71.19 0.25 ----- ----- ----- ----- ----- 0.25 15.87 0.25 71.19 0.25 ----- ----- ----- ---- ----- 0.25 1 ...End z ydrograph Summary Report Page 1 yd. Hydrograph Peak Time Time to Volume Return Inflow Maximum Maximum Hydrograph No. type flow interval peak period hyd(s) elevation storage description (origin) (cfs) (min) (min) (acft) (yrs) (ft) (cuft) 1 SCS Runoff 5.4 1 725 0.39 25 ---- - — Existing Condi SCS Runoff 9.9 1 724 0.78 25 --- ---- Proposed Condi 3 Reservoir 2.5 1 746 0.78 25 2 72.12 7071 Ellington Road i 1 Proj. file: 87546A10.GPW OF file: New.IDF Run date: 02-11-1999 Hydrograph Report Page 1 Hyd. No. 1 Existing Conditions Hydrograph type = SCS Runoff Peak discharge = 5.44 cfs Storm frequency = 25 yrs Time interval = 1 min Drainage area = 1.8 ac Curve number = 71 Basin Slope = 0 % Hydraulic length = 0 ft Tc method = USER Time of conc. (Tc) = 5 min ' Total precip. = 5.50 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Total Volume=16,834 tuft,0.386 acft Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 11.30 0.25 11.85 1.49 12.40 1.83 12.95 0.60 11.32 0.26 11.87 1.58 12.42 1.74 12.97 0.59 11.33 0.26 11.88 1.67 12.43 1.65 12.98 0.58 11.35 0.27 11.90 1.77 12.45 1.55 13.00 0.57 11.37 0.28 11.92 1.88 12.47 1.46 13.02 0.56 11.38 0.29 11.93 2.03 12.48 1.36 13.03 0.55 11.40 0.29 11.95 2.25 12.50 1.27 13.05 0.54 11.42 0.30 11.97 2.56 12.52 1.17 13.07 0.53 11.43 0.31 11.98 2.97 12.53 1.08 13.08 0.53 11.45 0.32 12.00 3.49 12.55 1.00 13.10 0.52 11.47 0.32 12.02 4.06 12.57 0.93 13.12 0.52 11.48 0.33 12.03 4.63 12.58 0.88 13.13 0.51 11.50 0.34 12.05 5.10 12.60 0.84 13.15 0.51 11.52 0.35 12.07 5.38 12.62 0.82 13.17 0.51 11.53 0.36 12.08 5.44 << 12.63 0.80 13.18 0.51 11.55 0.38 12.10 5.30 12.65 0.78 13.20 0.50 11.57 0.40 12.12 4.99 12.67 0.77 13.22 0.50 11.58 0.43 12.13 4.57 12.68 0.76 13.23 0.50 11.60 0.47 12.15 4.12 12.70 0.75 13.25 0.50 11.62 0.52 12.17 3.69 12.72 0.74 13.27 0.49 11.63 0.57 12.18 3.34 12.73 0.73 13.28 0.49 11.65 0.62 12.20 3.07 12.75 0.72 13.30 0.49 11.67 0.68 12.22 2.86 12.77 0.71 13.32 0.49 11.68 .0.74 12.23 2.71 12.78 0.70 13.33 0.48 11.70 0.81 12.25 2.60 12.80 0.69 13.35 0.48 11.72 0.87 12.27 2.52 12.82 0.68 13.37 0.48 11.73 0.94 12.28 2.44 12.83 0.67 13.38 0.48 11.75 1.01 12.30 2.36 12.85 0.66 13.40 0.47 11.77 1.08 12.32 2.27 12.87 0.65 13.42 0.47 11.78 1.16 12.33 2.19 12.88 0.64 13.43 0.47 11.80 1.24 12.35 2.10 12.90 0.63 13.45 0.47 11.82 1.32 12.37 2.01 12.92 0.62 13.47 0.46 11.83 1.40 12.38 1.92 12.93 0.61 13.48 0.46 Continues on next page... Existing Conditions Page 2 Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) 13.50 0.46 14.33 0.34 15.17 0.28 13.52 0.45 14.35 0.34 15.18 0.28 13.53 0.45 14.37 0.34 15.20 0.27 13.55 0.45 14.38 0.34 15.22 0.27 13.57 0.45 14.40 0.34 15.23 0.27 13.58 0.44 14.42 0.34 15.25 0.27 13.60 0.44 14.43 0.34 15.27 0.27 13.62 0.44 14.45 0.33 15.28 0.27 13.63 0.44 14.47 0.33 15.30 0.27 13.65 0.43 14.48 0.33 15.32 0.26 13.67 0.43 14.50 0.33 15.33 0.26 13.68 0.43 14.52 0.33 15.35 0.26 13.70 0.43 14.53 0.33 15.37 0.26 13.72 0.42 14.55 0.33 15.38 0.26 13.73 0.42 14.57 0.33 15.40 0.26 13.75 0.42 14.58 0.32 15.42 0.26 13.77 0.41 14.60 0.32 15.43 0.25 13.78 0.41 14.62 0.32 15.45 0.25 13.80 0.41 14.63 0.32 15.47 0.25 13.82 0.41 14.65 0.32 15.48 0.25 13.83 0.40 14.67 0.32 13.85 0.40 14.68 0.32 13.87 0.40 14.70 0.31 ...End 13.88 0.40 14.72 0.31 13.90 0.39 14.73 0.31 13.92 0.39 14.75 0.31 13.93 0.39 14.77 0.31 13.95 0.38 14.78 0.31 13.97 0.38 14.80 0.31 13.98 0.38 14.82 0.31 14.00 0.38 14.83 0.30 14.02 0.37 14.85 0.30 14.03 0.37 14.87 0.30 14.05 0.37 14.88 0.30 14.07 0.37 14.90 0.30 14.08 0.36 14.92 0.30 14.10 0.36 14.93 0.30 14.12 0.36 14.95 0.29 14.13 0.36 14.97 0.29 14.15 0.36 14.98 0.29 14.17 0.36 15.00 0.29 14.18 0.36 15.02 0.29 14.20 0.35 15.03 0.29 14.22 0.35 15.05 0.29 14.23 0.35 15.07 0.29 14.25 0.35 15.08 0.28 14.27 0.35 15.10 0.28 14.28 0.35 15.12 0.28 14.30 0.35 15.13 0.28 14.32 0.35 15.15 0.28 Hydrograph Report Page 1 Hyd. No. 2 Proposed Conditions Hydrograph type = SCS Runoff Peak discharge = 9.90 cfs Storm frequency = 25 yrs Time interval = 1 min Drainage area = 1.8 ac Curve number = 96 Basin Slope = 0 % Hydraulic length = 0 ft Tc method = USER Time of conc. (Tc) = 5 min Total precip. = 5.50 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Total Volume=33,865 tuft,0.777 acft Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 8.37 0.25 8.92 0.31 9.47 0.38 10.02 0.45 8.38 0.25 8.93 0.32 9.48 0.38 10.03 0.45 8.40 0.25 8.95 0.32 9.50 0.39 10.05 0.46 8,42 0,26 8,97 0,32 9.52 0,39 10.01 0,46 8.43 0.26 8.98 0.32 9.53 0.39 10.08 0.46 8.45 0.26 9.00 0.32 9.55 0.39 10.10 0.46 8.47 0.26 9.02 0.33 9.57 0.39 10.12 0.47 8.48 0.26 9.03 0.33 9.58 0.40 10.13 0.47 8.50 0.27 9.05 0.33 9.60 0.40 10.15 0.48 8.52 0.27 9.07 0.33 9.62 0.40 10.17 0.48 8.53 0.27 9.08 0.34 9.63 0.40 10.18 0.48 I� 8.55 0.27 9.10 0.34 9.65 0.40 10.20 0.49 8.57 0.27 9.12 0.34 9.67 0.41 10.22 0.49 8.58 0.28 9.13 0.34 9.68 0.41 10.23 0.50 8.60 0.28 9.15 0.34 9.70 0,41 10,25 0,50 8.62 0.28 9.17 0.35 9.72 0.41 10.27 0.50 8.63 0.28 9.18 0.35 9.73 0.42 10.28 0.51 8.65 0.28 9.20 0.35 9.75 0.42 10.30 .0.51 8.67 0.29 9.22 0.35 9.77 0.42 10.32 0.52 8.68 0.29 9.23 0.35 9.78 0.42 10.33 0.52 8.70 0.29 9.25 0.36 9.80 0.42 10.35 0.53 8.72 0.29 9.27 0.36 9.82 0.43 10.37 0.53 8.73 0.29 9.28 0.36 9.83 0.43 10.38 0.53 8.75 .0.29 9.30 0.36 9.85 0.43 10.40 0.54 8.77 0.30 9.32 0.W 9.87 0.43 10.42 0.54 8.78 0,30 9,33 0,37 9.88 0.43 10,43 0,55 8.80 0.30 9.35 0.37 9.90 0.44 10.45 0.55 8.82 0.30 9.37 0.37 9.92 0.44 10.47 0.55 8.83 0.30 9.38 0.37 9.93 0.44 10.48 0.56 8.85 0.31 9.40 0.37 9.95 0.44 10.50 0.56 8.87 0.31 9.42 0.38 9.97 0.44 10.52 0.57 8.88 0.31 9.43 0.38 9.98 0.45 10.53 0.57 8,90 0.31 9,45 0.38 10,00 0.45 10,55 0.57 M Continues on next page... Proposed Conditions Page 2 Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 10.57 0.58 11.40 1.01 12.23 4.34 13.07 0.76 10.58 0.58 11.42 1.02 12.25 4.13 13.08 0.75 10.60 0.59 11.43 1.04 12.27 3.97 13.10 0.74 10.62 0.59 11.45 1.05 12.28 3.82 13.12 0.74 10.63 0.60 11.47 1.07 12.30 3.67 13.13 0.73 10.65 0.60 11.48 1.08 12.32 3.52 13.15 0.73 10.67 0.60 11.50 1.10 12.33 3.38 13.17 0.72 10.68 0.61 11.52 1.12 12.35 3.23 13.18 0.72 10.70 0.61 11.53 1.15 12.37 3.08 13.20 0.71 10.72 0.62 11.55 1.19 12.38 2.93 13.22 0.71 10.73 0.62 11.57 1.25 12.40 2.78 13.23 0.71 10.75 0.62 11.58 1.34 12.42 2.63 13.25 0.70 10.77 0.63 11.60 1.44 12.43 2.48 13.27 0.70 10.78 0.63 11.62 1.56 12.45 2.33 13.28 0.69 10.80 0.64 11.63 1.69 12.47 2.18 13.30 0.69 10.82 0.64 11.65 1.83 12.48 2.03 13.32 0.69 10.83 0.65 11.67 1.97 12.50 1.89 13.33 0.68 10.85 0.65 11.68 2.12 12.52 1.74 13.35 0.68 10.87 0.65 11.70 2.26 12.53 1.60 13.37 0.67 10.88 0.66 11.72 2.41 12.55 1.48 13.38 0.67 10.90 0.66 11.73 2.56 12.57 1.38 13.40 0.67 10.92 0.67 11.75 2.71 12.58 1.30 13.42 0.66 10.93 0.67 11.77 2.85 12.60 1.24 13.43 0.66 10.95 0.68 11.78 3.00 12.62 1.20 13.45 0.65 10.97 0.68 11.80 3.15 12.63 1.17 13.47 0.65 10.98 0.68 11.82 3.30 12.65 1.14 13.48 0.65 11.00 0.69 11.83 3.45 12.67 1.13 13.50 0.64 11.02 0.69 11.85 3.60 12.68 1.11 13.52 0.64 11.03 0.70 11.87 3.75 12.70 1.10 13.53 0.63 11.05 0.70 11.88 3.90 12.72 1.08 13.55 0.63 11.07 0.71 11.90 4.05 12.73 1.06 13.57 0.62 11.08 0.72 11.92 4.22 12.75 1.05 13.58 0.62 11.10 0.73 11.93 4.47 12.77 1.03 13.60 0.62 11.12 0.75 11.95 4.85 12.78 1.02 13.62 0.61 11.13 0.76 11.97 5.39 12.80 1.00 13.63 0.61 11.15 0.78 11.98 6.13 12.82 0.99 13.65 0.60 11.17 0.79 12.00 7.02 12.83 0.97 13.67 0.60 11.18 0.81 12.02 7.98 12.85 0.96 13.68 0.60 11.20 0.82 12.03 8.88 12.87 0.94 13.70 0.59 11.22 0.84 12.05 9.56 12.88 0.92 13.72 0.59 11.23 .0.85 12.07 9.90 << 12.90 0.91 13.73 0.58 11.25 0.87 12.08 9.82 12.92 0.89 13.75 0.58 11.27 0.88 12.10 9.40 12.93 0.88 13.77 0.58 11.28 0.90 12.12 8.70 12.95 0.86 13.78 0.57 11.30 0.91 12.13 7.85 12.97 0.85 13.80 0.57 11.32 0.93 12.15 6.96 12.98 0.83 13.82 0.56 11.33 0.94 12.17 6.15 13.00 0.82 13.83 0.56 11.35 0.96 12.18 5.49 13.02 0.80 13.85 0.56 11.37 0.98 12.20 4.99 13.03 0.79 13.87 0.55 11.38 0.99 12.22 4.61 13.05 0.77 13.88 0.55 Continues on next page... Proposed Conditions Page 3 Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 13.90 0.54 14.73 0.42 15.57 0.33 13.92 0.54 14.75 0.42 15.58 0.32 13.93 0.54 14.77 0.42 15.60 0.32 ...End 13.95 0.53 14.78 0.42 15.62 0.32 13.97 0.53 14.80 0.42 15.63 0.32 13.98 0.52 14.82 0.41 15.65 0.32 14.00 0.52 14.83 0.41 15.67 0.31 14.02 0.51 14.85 0.41 15.68 0.31 14.03 0.51 14.87 0.41 15.70 0.31 14.05 0.51 14.88 0.41 15.72 0.31 14.07 0.50 14.90 0.40 15.73 0.31 14.08 0.50 14.92 0.40 15.75 0.30 14.10 0.50 14.93 0.40 15.77 0.30 14.12 0.50 14.95 0.40 15.78 0.30 14.13 0.49 14.97 0.40 15.80 0.30 14.15 0.49 14.98 0.39 15.82 0.30 14.17 0.49 15.00 0.39 15.83 0.29 14.18 0.49 15.02 0.39 15.85 0.29 14.20 0.49 15.03 0.39 15.87 0.29 14.22 0.48 15.05 0.39 15.88 0.29 14.23 0.48 15.07 0.38 15.90 0.29 14.25 0.48 15.08 0.38 15.92 0.28 14.27 0.48 15.10 0.38 15.93 0.28 14.28 0.48 15.12 0.38 15.95 0.28 14.30 0.47 15.13 0.38 15.97 0.28 14.32 0.47 15.15 0.37 15.98 0.28 14.33 0.47 15.17 0.37 16.00 0.27 14.35 0.47 15.18 0.37 16.02 0.27 14.37 0.47 15.20 0.37 16.03 0.27 14.38 0.46 15.22 0.37 16.05 0.27 14.40 0.46 15.23 0.36 16.07 0.27 14.42 0.46 15.25 0.36 16.08 0.27 14.43 0.46 15.27 0.36 16.10 0.27 14.45 0.46 15.28 0.36 16.12 0.26 14.47 0.45 15.30 0.36 16.13 0.26 14.48 0.45 15.32 0.36 16.15 0.26 14.50 0.45 15.33 0.35 16.17 0.26 14.52 0.45 15.35 0.35 16.18 0.26 14.53 0.45 15.37 0.35 16.20 0.26 14.55 0.44 15.38 0.35 16.22 0.26 14.57 .0.44 15.40 0.35 16.23 0.26 14.58 0.44 15.42 0.34 16.25 0.26 14.60 0,44 15.43 0.34 16,27 0,26 14.62 0.44 15.45 0.34 16.28 0.26 14.63 0.44 15.47 0.34 16.30 0.25 14.65 0.43 15.48 0.34 16.32 0.25 14.67 0.43 15.50 0.33 16.33 0.25 14.68 0.43 15.52 0.33 16.35 0.25 14.70 0.43 15.53 0.33 16.37 0.25 14.72 0.43 15.55 0.33 16.38 0.25 Hydrograph Report Page 1 Hyd. No. 3 Ellington Road Hydrograph type = Reservoir Peak discharge = 2.45 cfs Storm frequency = 25 yrs Time interval = 1 min ' Inflow hyd. No. = 2 Reservoir name = Ellington Road Max. Elevation = 72.12 ft Max. Storage = 7,071 cuft Storage indication method used. Total Volume=33,859 cuft,0.777 acft Hydrograph Discharge Table Time Inflow Elevation Culv.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 8,40 0.25 71.19 0.25 ----- ----- ----- ----- ----- 0.25 8.42 0.26 71.19 0.25 ----- ----- ---- ----- ----- 0.25 8.43 0.26 71.19 0.25 ----- ----- ----- ----- ----- 0.25 8.45 0.26 71.19 0.26 ----- ----- ----- ----- ----- 0.26 8.47 0.26 71.19 0.26 ----- ----- ----- ----- ----- 0.26 8.48 0.26 71.19 0.26 ----- ----- ---- ----- ----- 0.26 8.50 0.27 71.19 0.26 ----- ----- ----- ----- ----- 0.26 8.52 0.27 71.19 0.26 ----- ----- ----- ----- ----- 0.26 8.53 0.27 71.19 0.27 ----- ----- ----- ----- ----- 0.27 8.55 0.27 71.19 0.27 ----- ----- ----- ----- ----- 0.27 8.57 0.27 71.19 0.27 ---- ----- ----- ----- ----- 0.27 8.58 0.28 71.19 _ 0.27 ----- ----- ---- ----- ----- 0.27 8.60 0.28 71.19 0.27 ----- ----- ---- ----- ----- 0.27 8.62 0.28 71.19 0.28 ----- ----- ----- ----- ---- 0.28 8.63 . 0.28 71.19 0.28 ----- ----- ----- ----- ----- 0.28 8.65 0.28 71.19 0.28 ----- ----- ----- ----- ----- 0.28 8.67 0.29 71.19 0.28 ----- ----- ----- ----- ----- 0.28 8.68 0.29 71.19 0.28 ----- ----- ---- ----- ----- 0.28 8.70 0.29 71.19 0.29 ----- ----- ----- ----- ----- 0.29 8.72 0.29 71.19 0.29 0.29 ----- ----- ---_ ----- ----- 8.73 0.29 71.19 0.29 0.29 8.75 0.29 71.19 0.29 ----- ----- ----- ----- ----- 0.29 8.77 0.30 71.19 0.29 ----- ----- ----- ----- ----- 0,29 8.78 0.30 71.19 0.30 0.30 ----- -_-- -_-- ----- ----- 8.80 0.30 71.19 0.30 0.30 8.82 0.30 71.19 0.30 ----- ----- ----- ----- ----- 0.30 8.83 0.30 71.19 0.30 ----- ----- ----- ----- ----- 0.30 8.85 0.31 71.19 0.30 ----- ----- ----- ----- ----- 0.30 8.87 0.31 71.19 0.30 ----- ----- ----- ----- ----- 0.30 8.88 0.31 71.19 0.31 ----- ----- ----- ----- ----- 0.31 8.90 0.31 71.19 0.31 ----- ----- ----- ----- ----- 0.31 8.92 0.31 71.19 0.31 ---=- ----- ----- ----- ----- 0.31 8.93 0.32 71.19 0.31 ----- ----- ----- ----- ----- 0.31 8.95 0.32 71.19 0.31 0.31 8.97 0.32 71.19 0.32 0.32 --_- ----- --_- _--- ----- 8.98 0.32 71.19 0.32 0.32 9.00 0.32 71.19 0.32 ----- ----- ----- ----- ----- 0.32 Continues on next page... ' Ellington Road Page 2 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 9.02 0.33 71.20 0.32 ---- ----- ----- ----- ----- 0.32 9.03 0.33 71.20 0.32 ----- ----- ----- ---- ----- 0.32 9.05 0.33 71.20 0.33 ----- ----- ----- ----- ----- 0.33 9.07 0.33 71.20 0.33 0.33 ----- ----_ ----- ----- ----- 9.08 0.34 71.20 0.33 0.33 9.10 0.34 71.20 0.33 ----- ---- ----- ----- ----- 0.33 9.12 0.34 71.20 0.34 ----- ---- ----- ----- ----- 0.34 9.13 0.34 71.20 0.34 ---_ 0.34 ----- ----- ----- ----- 9.15 0.34 71.20 0.34 0.34 9.17 0.35 71.20 0.34 ----- ----- ----- ----- ----- 0.34 9.18 0.35 71.20 0.34 0.34 ----- ----- ----- ----- ----- 9.20 0.35 71.20 0.35 0.35 9.22 0.35 71.20 0.35 ----- ----- ----- ----- ----- 0.35 9.23 0.35 71.20 0.35 ----- ----- ----- ----- ----- 0.35 9.25 0.36 71.20 0.35 �--__ ____ __--_ _�__ _____ 0.35 9.27 0.36 71.20 0.35 0.35 9.28 0.36 71.20 0.36 ----- ----- ----- ----- ----- 0.36 9.32 0.36 71.20 0.36 N=== =___= ----- ----- ----- 0.36 9.32 0.36 71.20 0.36 0.36 9.33 0.37 71.20 0.36 0.36 9.35 0.37 71.20 0.36 ----- ----- ----- ----- ----- 0.36 9.37 0.37 71.20 0.37 ----- ----- ----- ----- ----- 0.37 9.38 0.37 71.20 0.37 ----- ----- ----- ---- ----- 0.37 9.40 0.37 71.20 0.37 ----- ---- ----- ----- ----- 0.37 9.42 0.38 71.20 0.37 ----- ----- ----- ----- ----- 0.37 9.43 0.38 71.20 0.37 0.37 ----- ----- ----- ----- ----- 9.45 0.38 71.20 0.38 0.38 9.47 0.38 71.20 0.38 ----- ----- ----- ----- ----- 0.38 9.48 0.38 71.20 0.38 ---- ----- --- ----- ----- 0.38 1 9.50 0.39 71.20 0.38 0.38 ----- ----- ----- ----- ----- 9.52 0.39 71.20 0.38 0.38 9.53 0.39 71.20 0.30 ----- ----- ----- ---- ----- 0.39 9.55 0.39 71.20 0.39 ---- ----- ---- ----- ---_- 0.39 9.57 0.39 71.20 0.39 0.39 9.58 0.40 71.20 0.39 ---- ----- ---- ----- ----- 0.39 9.60 0.40 71.20 0.39 --- ----- ----- ----- ----- 0.39 9.62 0.40 71.20 0.40 ----- ----- ---- ----- ----- 0.40 9.63 0.40 71.20 0.40 ---- ----- ---- ---- ----- 0.40 9.65 0.40 71.20 0.40 ----- ----- ----- ----- ----- 0.40 9.67 0.41 71.20 0.40 ----- ----- ----- ----- ----- 0.40 9.68 0.41 71.20 0.40 ----- ----- ----- ----- ----- 0.40 9.70 0.41 71.20 0.41 ----- ----- ----- ----- ----- 0.41 9.72 0.41 71.20 0.41 --=-- ----- ----- ----- ----- 0.41 9.73 0.42 71.20 0.41 ----- ----- ----- ----- ----- 0.41 9.75 0.42 71.20 0.41 ----- ----- ----- ----- ----- 0.41 9.77 0.42 71.21 0.42 ----- ----- ----- ----- ----- 0.42 9.78 0.42 71.21 0.42 ----- ----- ----- ----- ----- 0.42 9.80 0.42 71.21 0.42 ----- ----- ----- ----- ----- 0.42 9.82 0.43 71.21 0.42 ----- ----- ----- ----- ----- 0.42 9.83 0.43 71.21 0.42 ----- ----- ----- ----- ----- 0.42 Continues on next page... rr ' Ellington Road Page 3 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) ' 9.85 0.43 71.21 0.43 ----- ----- --- ----- ----- 0.43 9.87 0.43 71.21 0.43 ----- ----- ----- ----- ----- 0.43 9.88 0.43 71.21 0.43 ----- ----- ----- ----- ----- 0.43 9.90 0.44 71.21 0.43 --- ----- ---- ----- ----- 0.43 9.92 0.44 71.21 0.43 ----- ----- ----- ----- =---- 0.43 9.93 0.44 71.21 0.44 ----- ----- --- ----- ---- 0.44 9.95 0.44 71.21 0.44 ---- ----- --- ----- ----- 0.44 9.97 0.44 71.21 0.44 ----- ----- ----- ----- ----- 0.44 9.98 0.45 71.21 0.44 ----- ----- ----- ----- ----- 0.44 10.00 0.45 71.21 0.44 ----- ----- ----- ----- ----- 0.44 ' 10.02 0.45 71.21 0.45 ----- ----- ---- ---- ----- 0.45 10.03 0.45 71.21 0.45 ----- ---- ----- ----- ----- 0.45 10.05 0.46 71.21 0.45 ---- ----- ---- ----- ----- 0.45 10.07 0.46 71.21 0.45 ----- ----- ---- ---- ----- 0.45 ' 10.08 0.46 71.21 0.46 ----- ----- ---- ----- ----- 0.46 10.10 0.46 71.21 0.46 ----- ----- --- ---- ----- 0.46 10.12 0.47 71.21 0.46 -7-- ----- ----- ----- ----- 0.46 ' 10.13 0.47 71.21 0.47 ----- ----- --- ----- ----- 0.47 10.15 0.48 71.21 0.47 ----- ----- ----- ----- ----- 0.47 10.17 0.48 71.21 0.47 ----- ----- ----- ---- ----- 0.47 10.18 0.48 71.21 0.48 ----- ---- ---- ----- ----- 0.48 10.20 0.49 71.21 0.48 ----- ----- ---- ---- ----- . 0.48 10.22 0.49 71.21 0.48 ----- ----- ---- ---- ---- 0.48 10.23 0.50 71.21 0.49 ----- ----- --- ---- ----- 0.49 10.25 0.50 71.21 0.49 ----- ----- --- ----- ----- 0.49 10.27 0.50 71.21 0.50 --- �- -__ �--- 0.50 ----- 10.28 0.51 71.21 0.50 0.50 10.30 0.51 71.21 0.50 ---- ----- ----- ---- ----- 0.50 ' 10.32 0.52 71.22 0.51 -- 0.51 10.33 0.52 71.22 0.51 0.51 ----- ----- _--- ----- 10.35 0.53 71.22 0.52 0.52 10.37 0.53 71.22 0.52 . ----- ----- ----- ----- ----- 0.52 ' 10.38 0.53 71.22 0.53 -=_ _____ _- -=__ _____ 0.53 10.40 0.54 71.22 0.53 0.53 10.42 0.54 71.22 0.53 ----- ----- ----- ----- ----- 0.53 10.43 0.55 71.22 0.54 ----- -=--- --- ----- ----- 0.54 ' 10.45 0.55 71.22 0.54 ---- ----- ---- ----- ---- 0.54 10.47 0.55 71.22 0.55 ----- ----- ----- ----- ----- 0.55 10.48 0.56 71.22 0.55 ----- ----- -- ----- ----- 0.55 ' 10.50 0.56 71.22 0.55 ----- ----- -- ---- ----- 0.55 10.52 0.57 71.22 0.56 ----- ----- -- ---- ----- 0.56 10.53 0.57 71.22 0.56 ----- ----- ----- ---- ----- 0.56 10.55 0.57 71.22 0.57 ----- ----- ---- ----- ---=- 0.57 10.57 0.58 71.22 0.57 --_- -_-- --_- 0.57 ----- ----- 10.58 0.58 71.22 0.57 0.57 10.60 0.59 71.22 0.58 ----- ----- ---- ----- ----- 0.58 10.62 0.59 71.22 0.58 ----- ----- ----- ----- ----- 0.58 10.63 0.60 71.22 0.59 ----- ----- ----- ----- ----- 0.59 10.65 0.60 71.22 0.59 ----- ----- ----- ----- ----- 0.59 10.67 0.60 71.22 0.60 ----- ----- ----- ----- ----- 0.60 Continues on next page... Ellington Road Page 4 Hydrograph Discharge Table ' Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) ' 10.68 0.61 71.23 0.60 ---- -- ----- ----- ----- 0.60 10.70 0.61 71.23 0.60 ---- -- ----- ----- ----- 0.60 10.72 0.62 71.23 0.61 ---- -- ----- ----- ----- 0.61 ' 10.73 0.62 71.23 0.61 ---- --- ----- ----- ----- 0.61 10.75 0.62 71.23 0.62 ---- -- ----- ----- ----- 0.62 10.77 0.63 71.23 0.62 --- -- ----- ----- ---- 0.62 ' 10.80 0.63 71.23 0.62 -- r ----- ----- ---- 0.62 10.80 0.64 71.23 0.63 0.63 10.82 0.64 71.23 0.63 0.63 10.83 0.65 71.23 0.64 ---- -- ----- ----- ----- 0.64 10.85 0.65 71.23 0.64 _=___ _____ ___== 0.64 10.87 0.65 71.23 0.65 0.65 10.88 0.66 71.23 0.65 ---- -- ----- ----- ----- 0.65 10.90 0.66 71.23 0.65 ---- - ---- ----- ----- 0.65 10.92 0.67 71.23 0.66 ---- -- ----- ----- ----- 0.66 10.93 0.67 71.23 0.66 ---- -- ----- ----- ----- 0.66 10.95 0.68 71.23 0.67 ---- --- ---- ----- ----- 0.67 10.97 0.68 71.23 0.67 ----- -- ----- ----- ----- 0.67 ' 10.98 0.68 71.23 0.68 ---- -- 0.68 11.00 0.69 71.23 0.68 ----- ----- ----- 0.68 11.02 0.69 71.23 0.68 --- -- ----- ----- ----- 0.68 ' 11.03 0.70 71.23 0.69 ---- --- . 0.69 11.05 0.70 71.24 0.69 ----- ----- ----- 0.69 11.07 0.71 71.24 0.70 ---- --- ----- ----- ---- 0.70 11.08 0.72 71.24 0.71 --- --- ---- ----- ----- 0.71 11.10 0.73 71.24 0.72 ---- -- ---- ----- ----- 0.72 11.12 0.75 71.24 0.73 ---- - ----- ----- ----- 0.73 11.13 0.76 71.24 0.74 --- --- ----- ----- ----- 0.74 11.15 0.78 71.24 0.75 ---- -- ----- ----- ----- 0.75 11.17 0.79 71.24 0.76 ---- -- ----- ----- ----- 0.76 11.18 0.81 71.24 0.78 ---- ---- ----- ----- ----- 0.78 11.20 0.82 71.25 0.78 ---- --- ----- ----- ----- 0.78 ' 11.22 0.84 71.25 0.79 - --- 0.79 11.23 0.85 71.25 0.80 ---- ----- ----- 0.80 11.25 0.87 71.25 0.81 ---- --- ----- ----- ----- 0.81 11.27 0.88 71.26 0.82 ---- --- --- ----- ----- 0.82 ' 11.28 0.90 71.26 0.84 ---- --- ---- 0.84 11.30 0.91 71.26 0.85 ----- ----- 0.85 11.32 0.93 71.27 0.86 --- --- ----- ----- ----- 0.86 ' 11.33 0.94 71.27 0.88 ---- --- ----- ----- ----- 0.88 11.35 0.96 71.27 0.89 ---- -- ----- ----- ----- 0.89 11.37 0.98 71.28 0.91 ---- --- ----- ----- ----- 0.91 11.38 0.99 71.28 0.92 ---- --- ----- ----- ----- 0.92 11.40 1.01 71.29 0.93 ---- -- 0.93 11.42 1.02 71.29 0.95 ----- ----- ----- 0.95 11.43 1.04 71.29 0.96 ---- --- ----- ----- ----- 0.96 11.45 1.05 71.30 0.98 ----- --- ----- ----- ----- 0.98 11.47 1.07 71.30 1.00 _____ _ _ _Y__ __-_ _____ 1.00 11.48 1.08 71.31 1.01 1.01 11.50 1.10 71.31 1.03 ---- --- ----- ----- ----- 1.03 Continues on next page... �ti Ellington Road Page 5 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) ' 11.52 1.12 71.31 1.04 -- -- ----- ---- ----- 1.04 11.53 1.15 71.32 1.06 ---- --- ----- ----- ----- 1.06 11.55 1.19 71.32 1.08 ---- ---- ----- ----- ----- 1.08 11.57 1.25 71.33 1.10 N-_ --- ___=_ ____ �___ 1.10 11.58 1.34 71.34 1.13 1.13 11.60 1.44 71.35 1.17 ---- -- ----- ----- ---- 1.17 ' 11.62 1. 71.3 1.22 -_-- -- 1.22 11.63 1.69 69 71.39 1.28 1.28 11.65 1.83 71.41 1.35 ----- ----- ----- 1.35 11.67 1.97 71.44 1.42 ----- -- ----- ----- ----- 1.42 ' 11.68 2.12 71.47 1.50 ---- -- ----- ----- ----- 1.50 11.70 2.26 71.51 1.58 --- -- ----- ----- ----- 1.58 11.72 2.41 71.55 1.66 ----- --- ----- ----- ----- 1.66 11.73 2.56 71.59 1.75 ----- -- ----- ----- ----- 1.75 11.75 2.71 71.64 1.84 _-- -- ----- ----- __- 1.84 11.77 2.85 71.68 1.93 1.93 11.78 3.00 71.74 2.03 ---- -- ----- ----- ----- 2.03 11.80 3.15 71,79 2.12 --- ---- ----- ----- ----- 2.12 ' 11.82 3.30 71.85 2.20 ---_ -- 2.20 11.83 3.45 71.91 2.25 ----- ----- ----- 2.25 11.85 3.60 71.98 2.39 ----- --- ----- ----- ----- 2.39 ' 11.87 3.75 72.00 2.45 ----- --- ----- ----- ----- 2.45 11.88 3.90 72.00 2.45 ---- -- ----- ----- ----- 2.45 11.90 4.05 72.00 2.45 --- -- ----- ----- ----- 2.45 11.92 4.22 72.01 2.45 ---- - ---- ----- ----- 2.45 11.93 4.47 72.01 2.45 -- -- ---- ----- ----- 2.45 11.95 4.85 72.01 2.45 ----- ---- ----- ----- ----- 2.45 11.97 5.39 72.01 2.45 -- - ---- ----- ----- 2.45 ' 11. .13 72.02 2.45 -- 2.45 12.00 00 7.02 72.02 2.45 2.45 ----- ----- ----- ----- 12.02 7.98 72.03 2.45 2.45 12.03 8.88 72.03 2.45 ----- --- ---- ----- ---- 2.45 ' 12.05 9.56 72.04 2.45 --_ -- 2.45 12.07 9.90 << 72.05 2.45 ----- ----- ----- 2.45 12.08 9.82 72.06 2.45 ---- -- ---- ----- ----- 2.45 12.10 9.40 72.07 2.45 ----- ---- ----- ----- ----- 2.45 12.12 8.70 72.07 2.45 -- 2.45 --_- ----- ----- ----- . 12.13 7.85 72.08 2.45 2.45 12.15 6.96 72.09 2.45 --- - ----- ----- ----- 2.45 12.1 .15 72. 2.45 _--- ____ 2.45 12.18 5.49 72.1010 2.45 2.45 12.20 4.99 72.10 2.45 ----- ----- _--- 2.45 12.22 4.61 72.10 2.45 ---- -- ----- ----- ----- 2.45 12.23 4.34 72.10 2.45 _--- -- 2.45 12.25 4.13 72.11 2.45 _--- ----- ----- 2.45 12.27 3.97 72.11 2.45 ---- -- ----- ----- ----- 2.45 12.28 3.82 72.11 2.45 ----- -- ----- ----- ----- 2.45 ' 12.30 3.67 72.11 2.45 ----- --- ----- ----- ----- 2.45 12.32 3.52 72.11 2.45 ----- ---- ----- ----- ----- 2.45 12.33 3.38 72.11 2.45 ----- -- ----- ----- ----- 2.45 Continues on next page... Ellington Road Page 6 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy.C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) ' 12.35 3.23 72.11 2.45 ----- ----- ----- ----- ----- 2.45 12.37 3.08 72.12 2.45 ----- ---- ---- ----- ----- 2.45 12.38 2.93 72.12 2.45 ----- ----- ---- ----- ----- 2.45 ' 12.40 2.78 72.12 2.45 ----- ----- ----- ----- ----- 2.45 12.42 2.63 72.12 2.45 ----- ----- ---- ---- ----- 2.45 12.43 2.48 72.12 2.45 ----- ---- ----- ----- ----- 2.45 << 12.45 2.18 72.12 2.45 ----- _--- ---- ----- ----- 2.45 12.47 2.18 72.12 2.45 2.45 12.48 2.03 72.12 2.45 ----- ----- 2.45 12.50 1.89 72.12 2.45 ----- ---- ----- ----- ----- 2.45 ' 12.52 1.74 72.11 2.45 ---- ----- ----- ----- ----- 2.45 12.53 1.60 72.11 2.45 ----- ----- ----- ----- ----- 2.45 12.55 1.48 72.11 2.45 ----- ----- ---- ----- ----- 2.45 12:57 1.38 72.11 2.45 ----- ---- ----- ----- ----- 2.45 ' 12.58 1.30 72.11 2.45 ----- --_- --- ---- ----- 2.45 12.60 1.24 72.11 2.45 ----- ---- ----- ----- ----- 2.45 12.62 1.20 72.11 2.45 ----- ----- ----- ----- ----- 2.45 ' 12.63 1.17 72.11 2.45 ----- ---- ----- ----- ----- 2.45 12.65 1.14 72.10 2.45 ----- ----- ----- ----- ----- 2.45 12.67 1.13 72.10 2.45 ----- ----- ----- ----- ----- 2.45 12.68 1.11 72.10 2.45 ----- ----- ----- ----- ----- 2.45 ' 12.70 1.10 72.10 2.45 ----- ----- ---- ----- ----- 2.45 12.72 1.08 72.10 2.45 ----- ----- ---- ----- ----- 2.45 12.73 1.06 72.10 2.45 ----- ----- ----- ----- ----- 2.45 12.75 1.05 72.10 2.45 ---- ---- ---- ----- ----- 2.45 12.77 1.03 72.09 2.45 2.45 ----_ ----- ---- ----- --_- 12.78 1.02 72.09 2.45 2.45 12.80 1.00 72.09 2.45 ----- ----- --- ----- ----- 2.45 ' 12.82 0.97 72.09 2.45 ----- ----- ----- - -- --_- 2.45 12.83 0.97 72.09 2.45 2.45 12.85 0.96 72.09 2.45 --- 2.45 12.87 0.94 72.08 2.45 ----- ---- ----- ----- ----- 2.45 ' 12.88 0.92 72.08 2.45 -M 2.45 ----- ---- ---- ---- 12.90 0.91 72.08 2.45 2.45 12.92 0.89 72.08 2.45 ----- ----- --- ----- ----- 2.45 12.93 0.88 72.08 2.45 ----- ----- ----- ----- ----- 2.45 ' 12.95 0.86 72.07 2.45 ----- ----- ---- ----- ----- 2.45 . 12.97 0.85 72.07 2.45 ---- ----- ----- ----- ----- 2.45 12.98 0.83 72.07 2.45 ----- ----- ----- ----- ----- 2.45 13.0 0.82 72.07 2.45 2.45 13.02 0.80 72.07 2.45 2.45 ----- ---- - - ----- ----- 13.03 0.79 72.07 2.45 2.45 13.05 0.77 72.06 2.45 ----- ----- ----- ----- ----- 2.45 13.07 0.76 72.06 2.45 2.45 ----- --_-- ----- ----- ----- 13.08 0.75 72.06 2.45 2.45 13.10 0.74 72.06 2.45 ----- ----- ----- ----- ----- 2.45 13.12 0.74 72.06 2.45 ----- ----- ----- ---- ----- 2.45 13.13 0.73 72.05 2.45 Y-- 2.45 _-_-_ ----- ---- ---- 13.15 0.73 72.05 2.45 2.45 13.17 0.72 72.05 2.45 ----- ----- ---- ----- ----- 2.45 Continues on next page... r Ellington Road Page 7 Hydrograph Discharge Table Time Inflow Elevation Culv.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 13.18 0.72 72.05 2.45 ----- ----- ----- ----- ----- 2.45 13.20 0.71 72.05 2.45 ----- ----- ----- ----- ----- 2.45 13.22 0.71 72.04 2.45 ----- ----- ----- ----- ----- 2.45 13.23 0.71 72.04 2.45 2.45 ----- ----- ----- ----- _--- 13.25 0.70 72.04 2.45 2.45 13.27 0.70 72.04 2.45 ----- ----- ----- ----- ----- 2.45 ' 13.28 0.69 72.04 2.45 ----- ----- ---- ----- ----- 2.45 13.30 0.69 72.03 2.45 ----- ----- ----- ----- ----- 2.45 13.32 0.69 72.03 2.45 ----- ----- ----- ----- ----- 2.45 13.33 0.68 72.03 2.45 ----- ----- ----- ----- ----- 2.45 . ' 13.35 0.68 72.03 2.45 ----- ----- ----- ----- ---- 2.45 13.37 0.67 72.03 2.45 2.45 13.38 0.67 72.02 2.45 ----- ----- ----- ----- ----- 2.45 13.40 0.67 72.02 2.45 ----- ----- ----- ---- ----- 2.45 13.42 0.66 72.02 2.45 ---- ----- -_- -_-- -_-- 2.45 13.43 0.66 72.02 2.45 2.45 13.45 0.65 72.02 2.45 ----- ---- ----- ----- ----- 2.45 ' 13.48 0.65 72.01 2.45 =__ - ----- ----- =___= ----- 2.45 13.48 0.65 72.01 2.45 2.45 13.50 0.64 72.01 2.45 2.45 13.52 0.64 72.01 2.45 ----- ----- ----- ----- ----- 2.45 13.53 0.63 72.01 2.45 ----- ----- ----- ----- ----- 2.45 13.55 0.63 72.00 2.45 ---- ----- ----- ----- ----- 2.45 13.57 0.62 72.00 2.45 ----- ----- ----- ----- ----- 2.45 13.58 -0.62 71.98 2.39 ---- ----- ----- ----- ----- 2.39 ' 13.60 0.62 71.88 2.23 ----- ----- ---- ----- ----- 2.23 13.62 0.61 71.80 2.14 ----- ----- ----- ----- ----- 2.14 13.63 0.61 71.72 2.00 --- ----- ----- ----- ----- 2.00 13.65 0.60 71.58 1.74 _ --- -�--- ---- =--- ----- 1.17 74 13.67 0.60 71.58 1.74 1.74 13.68 0.60 71.52 1.61 1.61 13.70 0.59 71.47 1.49 ----- ----- ----- ----- ----- 1.49 13.72 0.59 71.43 1.38 1.38 ---- ----- ---- --_- ---- 13.73 0.58 71.39 1.27 1.27 13.75 0.58 71.35 1.17 ----- ----- ----- ----- ----- 1.17 13.77 0.58 71.32 1.08 ----- ----- ----- ----- ----- 1.08 ' 13.78 0.57 71.30 0.98 ---- ----- ---- ----- ----- 0.98. 13.80 0.57 71.28 0.90 ----- ----- ----- ----- ----- 0.90 13.82 0.56 71.26 0.84 ----- ----- ---- ----- ----- 0.84 13.83 0.56 71.25 0.79 0.71-- ----- -- - ----- ----- 13.85 0.56 71.24 0.71 0.71 13.87 0.55 71.23 0.65 0.65 13.88 0.55 71.23 0.61 ----- ----- ----- ----- ---- 0.61 13.90 0.54 71.22 0.58 0.58 ----- ----- ----- ----- _---- 13.92 0.54 71.22 0.57 0.57 13.93 0.54 71.22 0.55 ----- ----- ----- ----- ----- 0.55 13.95 0.53 71.22 0.55 ----- ----- ----- ----- ----- 0.55 13.97 0.53 71.22 0.54 ----- ----- ----- ----- ----- 0.54 13.98 0.52 71.22 0.53 ----- ----- ----- ----- ----- 0.53 14.00 0.52 71.22 0.53 ----- ----- ----- ----- ----- 0.53 Continues on next page... 0!� ' Ellington Road Page 8 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 14.02 0.51 71.22 0.52 ---- ----- ----- ----- ---- 0.52 14.03 0.51 71.22 0.52 ----- ----- ----- ----- ---- 0.52 14.05 0.51 71.22 0.52 ---- ----- ----- ----- --- 0.52 14.07 0.50 71.22 0.51 ----- ----- ----- ----- --- 0.51 14.08 0.50 71.22 0.51 ----- ----- ----- ----- ----- 0.51 14.10 0.50 71.21 0.50 ----- ---- ----- ----- ----- 0.50 14.12 0.50 71.21 0.50 _____ ____ _____ �__ 0.50 14.13 0.49 71.21 0.50 0.50 14.15 0.49 71.21 0.50 ----- ----- ----- ----- --- 0.50 14.17 0.49 71.21 0.49 ----- ----- ----- ----- ---- 0.49 14.18 0.49 71.21 0.49 �-- 0.49 ----- ----- ----- ----- 14.20 0.49 71.21 0.49 0.49 14.22 0.48 71.21 0.49 ----- ----- ----- ----- ----- 0.49 14.23 0.48 71.21 0.49 ----- ----- ----- ---- --- 0.49 14.25 0.48 71.21 0.48 ----- ----- ---- ----- ---- 0.48 14.27 0.48 71.21 0.48 ----- ----- ----- ----- ----- 0.48 14.28 0.48 71.21 0.48 ----- ----- ----- ----- ---- 0.48 ' 14.3 0.47 71.21 0.48 ----- ---- 0.48 14.32 0.47 71.21 0.48 0.48 ----- ----- --- 14.33 0.47 71.21 0.47 -- ----- ----- 0.47 14.35 0.47 71.21 0.47 ----- ----- ----- ----- ---- 0.47 14.37 0.47 71.21 0.47 M-- ---- ---- 0.47 14.38 0.46 71.21 0.47 ----- ----- 0.47 14.40 0.46 71.21 0.47 ----- ----- ----- ----- ---- 0.47 14.42 0.46 71.21 0.46 ---- ----- ----- ----- ----- 0.46 14.43 0.46 71.21 0.46 ---- 0.46 _--- ----- ----- ---- 14.45 0.46 71.21 0.46 0.46 14.47 0.45 71.21 0.46 ---- ---- ----- ----- ---- 0.46 ' 14.50 0.45 71.21 0.45 ---- ----- ---- ---- ---= 0.45 14.50 0.45 71.21 0.45 0.45 14.52 0.45 71.21 0.45 ---- 0.45 14.53 0.45 71.21 0.45 ----- ----- ----- ----- ----- 0.45 14.55 0.44 71.21 0.45 ---- ----- ----- ----- ---- 0.45 14.57 0.44 71.21 0.45 ----- ----- ----- ----- ----- 0.45 14.58 0.44 71.21 0.44 ----- ----- ----- ----- ---- 0.44 14.60 0.44 71.21 0.44 ---- ----- ----- ----- ----- 0.44 ' 14.62 0.44 71.21 0.44 ----- ----- ----- ----- ----- 0.44. 14.63 0.44 71.21 0.44 ----- ----- ----- ----- ---- 0.44 14.65 0.43 71.21 0.44 ----- ----- ----- ----- ---- 0.44 ' 14.6 0.43 71.21 0.44 --- 0.44 14.68 0.43 71.21 0.43 ----- 0.43 ----- 14.70 0.43 71.21 0.43 ----- ----- ----- ----- 0.43 14.72 0.43 71.21 0.43 ----- ----- ----- ----- ----- 0.43 ' 14.73 0.42 71.21 0.43 _=___ _____ _____ _____ _____ 0.43 14.75 0.42 71.21 0.43 0.43 14.77 0.42 71.21 0.42 ----- ----- ----- ----- ---- 0.42 14.78 0.42 71.21 0.42 ----- ----- ----- ----- ----- 0.42 14.80 0.42 71.21 0.42 ----- ----- ----- ----- ---- 0.42 14.82 0.41 71.21 0.42 ----- ----- ----- ----- ----- 0.42 14.83 0.41 71.21 0.42 ----- ----- ----- ----- ----- 0.42 Continues on next page... q( r Ellington Road Page 9 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 14.85 0.41 71.20 0.41 ----- ----- ----- ----- ---- 0.41 14.87 0.41 71.20 0.41 ----- ----- ----- ----- ---- 0.41 14.88 0.41 71.20 0.41 ----- ----- ---- ----- 0.41 14.90 0.40 71.20 0.41 -_- ---- 0.41 ----- ----- ----- 14.92 0.40 71.20 0.41 0.41 14.93 0.40 71.20 0.40 ----- ----- ---- ---- ---- 0.40 14.95 0.40 71.20 0.40 ---- ----- ----- ----- ---- 0.40 r 14.97 0.40 71.20 0.40 0.40 ----- ----- ----- ----- ----- 14.98 0.39 71.20 0.40 0.40 15.00 0.39 71.20 0.40 ----- ----- ----- ----- ----- 0.40 r 15.02 0.39 71.20 0.39 ----- ---- ----- ----- ---- 0.39 15.03 0.39 71.20 0.39 0.39 15.05 0.39 71.20 0.39 0.39 15.07 0.38 71.20 0.39 ----- ----- ----- ----- ---- 0.39 15.08 0.38 71.20 0.39 ---- 0.39 ----- ----- ----- ----- 15.10 0.38 71.20 0.38 0.38 15.12 0.38 71.20 0.38 ---- ----- ----- ----- ---- 0.38 15.13 0.38 71.20 0.38 ----- ----- ----- ----- ---- 0.38 r 15.15 0.37 71.20 0.38 -__ __=__ __ __ -___ _____ 0.38 15.17 0.37 71.20 0.38 0.38 15.18 0.37 71.20 0.37 ----- ----- ----- ----- ----- 0.37 15.2 0.37 71.20 0.37 ---- 0.37 15.22 0.37 71.20 0.37 0.37 ----- ----- ----- ---- 15.23 0.36 71.20 0.37 0.37 15.25 0.36 71.20 0.37 ----- ----- ----- ----- ---- 0.37 ' 15.27 0.36 71.20 0.36 _____ _____ _____ �-= _____ 0.36 15.28 0.36 71.20 0.36 0.36 15.30 0.36 71.20 0.36 ----- ---- ----- ----- ----- 0.36 15.32 0.36 71.20 0.36 ----- ----- ----- ----- ----- 0.36 15.33 0.35 71.20 0.36 _____ _____ _____ _____ -___ 0.36 15.35 0.35 71.20 0.36 0.36 15.37 0.35 71.20 0.35 ----- ----- ----- ----- ----- 0.35 15.40 0.35 71.20 0.35 �_-- _ _ _ --=_ == --�- 0.35 15.40 0.35 71.20 0.35 0.35 15.42 0.34 71.20 0.35 0.35 15.43 0.34 71.20 0.35 ----- ----- ----- ----- ----- 0.35 15.45 0.34 71.20 0.34 _N__ __N_ _ _=_ _____ _____ 0.34 15.47 0.34 71.20 0.34 0.34 15.48 0.34 71.20 0.34 ----- ----- ----- ----- ----- 0.34 15.50 0.33 71.20 0.34 ----- ----- ----- ----- ----- 0.34 15.52 0.33 71.20 0.34 _____ ____ _____ _____ ____ 0.34 15.53 0.33 71.20 0.33 0.33 15.55 0.33 71.20 0.33 ----- ----- ----- ----- ----- 0.33 r 15.58 0.33 71.20 0.33 ----- ____- ----- ----- ---- 0.33 15.58 0.32 71.20 0.33 0.33 15.60 0.32 71.20 0.33 0.33 15.62 0.32 71.20 0.32 ----- ----- ----- ----- ----- 0.32 15.63 0.32 71.19 0.32 0.32 ----- ---_- ----- ----- ----- 15.65 0.32 71.19 0.32 0.32 15.67 0.31 71.19 0.32 ----- ----- ----- ----- ----- 0.32 r Continues on next page... r Ellington Road Page 10 Hydrograph Discharge Table ' Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 15.68 0.31 71.19 0.32 ----- ----- ----- ----- -- 0.32 15.70 0.31 71.19 0.31 ----- ----- ----- ----- ----- 0.31 15.72 0.31 71.19 0.31 ---- ----- ----- ----- -- 0.31 ' 15.73 0.31 71.19 0.31 ----- ----- ---- ----- -- 0.31 15.75 0.30 71.19 0.31 ----- ----- ----- ----- -- 0.31 15.77 0.30 71.19 0.31 ---- ---- --- ----- -- 0.31 15.78 0.30 71.19 0.30 ----- ----- ----- ----- -- 0.30 ' 15.80 0.30 71.19 0.30 ----- ----- ----- ----- --- 0.30 15.82 0.30 71.19 0.30 ----- ---- ----- ----- -- 0.30 15.83 0.29 71.19 0.30 ----- ----- ----- ----- -- 0.30 ' 15.85 0.29 71.19 0.30 _____ _____ _-__ ____ Y-_ 0.30 15.87 0.29 71.19 0.29 0.29 15.88 0.29 71.19 0.29 ----- ----- ----- ----- --- 0.29 15.90 0.29 71.19 0.29 ---- ----- ---- ----- -- 0.29 15.92 0.28 71.19 0.29 ---- --_-- -- 0.29 ---- ----- 15.93 0.28 71.19 0.29 0.29 15.95 0.28 71.19 0.28 ----- ----- ----- ----- -- 0.28 ' 15.9 0.28 71.19 0.28 -- 0.28 15.98 0.28 71.19 0.28 ----- 0.28 ---- ----- ----- 16.00 0.27 71.19 0.28 ----- ----- 0.28 16.02 0.27 71.19 0.28 ----- ----- ---- ----- -- 0.28 16.03 0.27 71.19 0.27 -- 0.27 ----- ----- ----- ----- 16.05 0.27 .71.19 0.27 '0.27 16.07 0.27 71.19 0.27 ----- ----- ----- ----- ----- 0.27 16.08 0.27 71.19 0.27 ----- ----- --- ----- -- 0.27 16.10 0.27 71.19 0.27 ____ 0.27 ----- ----- ---- ----- 16.12 0.26 71.19 0.27 0.27 16.13 0.26 71.19 0.27 ----- ----- ---- ----- -- 0.27 16.15 0.26 71.19 0.26 ----- ----- ---- ----- -- 0.26 16.17 0.26 71.19 0.26 ----- ----- ----- --- -- 0.26 16.18 0.26 71.19 0.26 ----- ----- ---- ---- -- 0.26 16.20 0.26 71.19 0.26 ----- ----- ----- ----- -- 0.26 16.22 0.26 71.19 0.26 ---- ----- --- ---- - 0.26 16.23 0.26 71.19 0.26 0.26 16.25 0.26 71.19 0.26 ----- ----- ----- ----- -- 0.26 16.27 0.26 71.19 0.26 ----- ----- ---- ---- --- 0.26 16.28 0.26 71.19 0.26 --- ----- ----- ----- -- 0.26 16.30 0.25 71.19 0.26 ----- ----- ----- ----- ---- 0.26 16.32 0.25 71.19 0.26 ----- ----- ----- ----- -- 0.26 16.33 0.25 71.19 0.25 ----- ----- ----- ----- -- 0.25 16.35 0.25 71.19 0.25 ----- ----- ----- ----- -- 0.25 16.37 0:25 71.19 0.25 ----- ----- ----- ----- - 0.25 16.38 0.25 71.19 0.25 ----- ----- ---- ----- -- 0.25 16.40 0.25 71.19 0.25 _____ _____ ____= __-_ --- 0.25 16.42 0.25 71.19 0.25 0.25 ...End r 4A d ro ra h Ay g p Summary Report Page 1 yd. Hydrograph Peak Time Time to Volume Return Inflow Maximum Maximum Hydrograph o. type flow interval peak period hyd(s) elevation storage description (origin) (cfs) (min) (min) (acft) (yrs) (ft) (cuft) 1 SCS Runoff 6.7 1 725 0.47 50 --- -- — Existing Condi SCS Runoff 11.2 1 724 0.89 50 — ------ — Proposed Condi Reservoir 2.5 1 748 0.88 50 2 72.15 8779 Ellington Road i ilr 1 1 . 1 1 1 �1 roj. file: 87546A10.GPW OF file: New.IDF Run date: 02-11-1999 Hydrograph Report Page 1 Hyd. No. 1 Existing Conditions Hydrograph type = SCS Runoff Peak discharge = 6.69 cfs Storm frequency = 50 yrs Time interval = 1 min Drainage area = 1.8 ac Curve number = 71 Basin Slope = 0 % Hydraulic length = 0 ft Tc method = USER Time of conc. (Tc) = 5 min Total precip. = 6.20 in Distribution = Type III ' Storm duration = 24 hrs Shape factor = 484 Total Volume=20,600 tuft,0.473 acft Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 11.10 0.25 11.65 0.82 12.20 3.72 12.75 0.86 11.12 0.26 11.67 0.90 12.22 3.46 12.77 0.85 11.13 0.26 11.68 0.97 12.23 3.28 12.78 0.84 11.15 0.27 11.70 1.06 12.25 3.15 12.80 0.83 11.17 0.28 11.72 1.14 12.27 3.04 12.82 0.81 11.18 0.29 11.73 1.22 12.28 2.94 12.83 0.80 11.20 0.29 11.75 1.31 12.30 2.84 12.85 0.79 11.22 0.30 11.77 1.40 12.32 2.74 12.87 0.78 11.23 0.31 11.78 1.50 12.33 2.63 12.88 0.76 11.25 0.32 11.80 1.60 12.35 2.53 12.90 0.75 11.27 0.33 11.82 1.70 12.37 2.42 12.92 0.74 11.28 0.33 11.83 1.80 12.38 2.31 12.93 0.73 11.30 0.34 11.85 1.91 12.40 2.20 12.95 0.72 11.32 0.35 11.87 2.02 12.42 2.09 12.97 0.70 11.33 0.36 11.88 2.13 1143 1.98 12.98 0.69 11.35 0.37 11.90 2.25 12.45 1.86 13.00 0.68 11.37 0.38 11.92 2.38 12.47 1.75 13.02 0.67 11.38 0.39 11.93 2.56 12.48 1.63 13.03 0.65 11.40 0.40 11.95 2.83 12.50 1.52 13.05 0.64 11.42 0.41 11.97 3.21 12.52 1.40 13.07 0.63 11.43 0.41 11.98 3.72 12.53 1.29 13.08 0.63 11.45 0.42 12.00 4.35 12.55 1.20 13.10 0.62 11.47 0.43 12.02 5.05 12.57 1.12 13.12 0.62 11.48 0.44 12.03 5.73 12.58 1.06 13.13 0.61 11.50 0.45 12.05 6.29 12.60 1.01 13.15 0.61 11.52 0.47 12.07 6.63 12.62 0.98 13.17 0.61 11.53 0.48 12.08 6.69<< 12.63 0.95 13.18 0.60 11.55 0.50 12.10 6.50 12.65 0.93 13.20 0.60 11.57 0.53 12.12 6.10 12.67 0.92 13.22 0.60 11.58 0.58 12.13 5.58 12.68 0.91 13.23 0.59 11.60 0.63 12.15 5.02 12.70 0.90 13.25 0.59 11.62 0.69 12.17 4.49 12.72 0.89 13.27 0.59 11.63 0.75 12.18 4.05 12.73 0.87 13.28 0.58 Continues on next page... Existing Conditions Page 2 H dro ra h Discharge Table Y 9 P 9 Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 13,30 0.58 14.13 0.43 14.97 0.35 15.80 0.26 13.32 0.58 14.15 0.42 14.98 0.35 15.82 0.26 13,33 0.57 14,17 0,42 15,00 0.34 15.83 0,26 13.35 0.57 14.18 0.42 15.02 0.34 15.85 0.26 13.37 0.57 14.20 0.42 15.03 0.34 15.87 0.26 13.38 0.57 14.22 0.42 15.05 0.34 15.88 0.26 13.40 0.56 14.23 0.42 15.07 0.34 15.90 0.25 13.42 0.56 14.25 0.41 15.08 0.34 15.92 0.25 13.43 0.56 14,27 0.41 15.10 0.33 15.93 0.25 13.45 0.55 14.28 0.41 15.12 0.33 13.47 0.55 14.30 0.41 15.13 0.33 13.48 0.55 14.32 0.41 15.15 0.33 ...End 13.50 0.54 14.33 0.41 15.17 0.33 13.52 0.54 14,35 0.41 15.18 0.33 13.53 0.54 14.37 0.40 15.20 0.32 13.55 0.53 14.38 0.40 15.22 0.32 13.57 0.53 14.40 0.40 15.23 0.32 13.58 0.53 14.42 0.40 15.25 0.32 13.60 0.52 14.43 0.40 15.27 0.32 13.62 0.52 14.45 0.40 15.28 0.32 13.63 0.52 14.47 0.39 15.30 0.31 13.65 0.51 14.48 0.39 15.32 0.31 13.67 0.51 14.50 0.39 15.33 0.31 13.68 0.51 14.52 0.39 15.35 0.31. 13.70 0.50 14.53 0.39 15.37 0,31 13.72 0.50 14.55 0.39 15.38 0.31 13.73 0.50 14.57 0.39 15.40 0.30 13.75 0.50 14.58 0.38 15.42 0.30 13.77 0.49 14.60 0.38 15.43 0.30 13.78 0.49 14.62 0.38 15.45 0.30 13.80 0.49 14.63 0.38 15.47 0.30 13.82 0.48 14.65 0.38 15.48 0.30 ' 13.83 0.48 14.67 0.38 15.50 0.29 13.85 0.48 14.68 0.37 15.52 0.29 13.87 0.47 14.70 0.37 15.53 0.29 13,88 0.47 14,72 0,37 15.55 0.29 13.90 0.47 14.73 0.37 15.57 0.29 13.92 0.46 14.75 0.37 15.58 0.29 13.93 0.46 14.77 0.37 15.60 0.28 13.95 0.46 14.78 0.36 15.62 0.28 13.97 0.45 14.80 0.36 15.63 0.28 13.98 '0.45 14.82 0.36 15.65 0.28 14.00 0.45 14.83 0.36 15.67 0.28 14.02 0.44 14.85 0.36 15.68 0.28 14.03 0.44 14.87 0.36 15.70 0.27 14.05 0.44 14.88 0.35 15.72 0.27 14,07 0.43 14.90 0,35 15,73 0.27 14.08 0.43 14.92 0.35 15.75 0.27 14.10 0.43 14.93 0.35 15.77 0.27 14.12 0.43 14.95 0.35 15.78 0.27 Hydrograph Report Page 1 Hyd. No. 2 Proposed Conditions Hydrograph type = SCS Runoff Peak discharge = 11.20 cfs Storm frequency = 50 yrs Time interval = 1 min Drainage area = 1.8 ac Curve number = 96 Basin Slope = 0 % Hydraulic length = 0 ft Tc method = USER Time of conc. (Tc) = 5 min Total precip. = 6.20 in Distribution = Type III Storm duration = 24 hrs Shape factor = 484 Total Volume=38,557 cult,0.885 acft Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 8.03 0.25 8.58 0.32 9.13 0.39 9.68 0.47 8.05 0.25 8.60 0.32 9.15 0.40 9.70 0.47 8.07 0.25 8.62 0.32 9.17 0.40 9.72 0.47 8.08 0.26 8.63 0.33 9.18 0.40 9.73 0.48 8.10 0.26 8.65 0.33 9.20 0.40 9.75 0.48 8.12 0.26 8.67 0.33 9.22 0.41 9.77 0.48 8.13 0.26 8.68 0.33 9.23 0.41 9.78 0.48 8.15 0.26 8,70 0,33 9.25 0,41 9,80 0.49 8.17 0.27 8.72 0.34 9.27 0.41 9.82 0.49 8.18 0.27 8.73 0.34 9.28 0.41 9.83 0.49 8.20 0.27 8.75 0.34 9.30 0.42 9.85 0.49 8.22 0.27 8.77 0.34 9.32 0.42 9.87 0.50 8.23 0.27 8.78 0.35 9.33 0.42 9.88 0.50 8.25 0.28 8.80 0.35 9.35 0.42 9.90 0.50 8.27 0.28 8.82 0.35 9.37 0.43 9.92 0.50 ' 8.28 0.28 8.83 0.35 9.38 0.43 9.93 0.51 8.30 0.28 8.85 0.36 9.40 0.43 9.95 0.51 8.32 0.28 8.87 0.36 9.42 0.43 9.97 0.51 8.33 0.29 8,88 0.36 9.43 0,44 9,98 0,51 8.35 0.29 8.90 0.36 9.45 0.44 10.00 0.51 8.37 0.29 8.92 0.36 9.47 0.44 10.02 0.52 8.38 0.29 8.93 0.37 9.48 0.44 10.03 0.52 8.40 0.30 8.95 0.37 9.50 0.44 10.05 0.52 8.42 0.30 8.97 0.37 9.52 0.45 10.07 0.53 8.43 0.30 8.98 0.37 9.53 0.45 10.08 0.53 8.45 0.30 9.00 0.38 9.55 0.45 10.10 0.53 8.47 0.30 9.02 0.38 9.57 0.45 10.12 0.54 8.48 0.31 9.03 0.38 9.58 0.46 10.13 0.54 8.50 0.31 9.05 0.38 9.60 0.46 10.15 0.55 8,52 0,31 9.07 0.38 9.62 0.46 10.17 0.55 8.53 0.31 9.08 0.39 9.63 0.46 10.18 0.55 8.55 0.32 9.10 0.39 9.65 0.47 10.20 0.56 8.57 0.32 9.12 0.39 9.67 0.47 10.22 0.56 Continues on next page... Proposed Conditions Page 2 Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 10.23 0.57 11.07 0.81 11.90 4.59 12.73 1.20 10.25 0.57 11.08 0.82 11.92 4.79 12.75 1.19 1 10.27 0.58 11.10 0.84 11.93 5.07 12.77 1.17 10.28 0.58 11.12 0.85 11.95 5.49 12.78 1.15 10.30 0.59 11.13 0.87 11.97 6.11 12.80 1.13 10.32 0.59 11.15 0.88 11.98 6.94 12.82 1.11 ' 10.33 0.60 11.17 0.90 12.00 7.95 12.83 1.10 10.35 0.60 11.18 0.92 12.02 9.04 12.85 1.08 10.37 0.61 11.20 0.94 12.03 10.05 12.87 1.06 10.38 0.61 11.22 0.95 12.05 10.82 12.88 1.04 10.40 0.62 11.23 0.97 12.07 11.20 << 12.90 1.03 10.42 0.62 11.25 0.99 12.08 11.11 12.92 1.01 10.43 0.62 11.27 1.01 12.10 10.63 12.93 0.99 10.45 0.63 11.28 1.02 12.12 9.84 12.95 0.97 10.47 0.63 11.30 1.04 12.13 8.88 12.97 0.96 10.48 0.64 11.32 1.06 12.15 7.87 12.98 0.94 10.50 0.64 11.33 1.08 12.17 6.95 13.00 0.92 10.52 0.65 11.35 1.09 12.18 6.21 13.02 0.90 10.53 0.65 11.37 1.11 12.20 5.64 13.03 0.89 10.55 0.66 11.38 1.13 12.22 5.21 13.05 0.87 10.57 0.66 11.40 1.15 12.23 4.90 13.07 0.86 10.58 0.67 11.42 1.16 12.25 4.67 13.08 0.85 10.60 0.67 11.43 1.18 12.27 4.48 13.10 0.84 10.62 0.68 11.45 1.20 12.28 4.32 13.12 0.83 10.63 0.68 11.47 1.22 12.30 4.15 13.13 0.83 10.65 0.69 11.48 1.23 12.32 3.98 13.15 0.82 10.67 0.69 11.50 1.25 12.33 3.81 13.17 0.82 10.68 0.69 11.52 1.27 12.35 3.65 13.18 0.81 10.70 0.70 11.53 1.30 12.37 3.48 13.20 0.81 10.72 0.70 11.55 1.35 12.38 3.31 13.22 0.80 10.73 0.71 11.57 1.42 12.40 3.14 13.23 0.80 10.75 0.71 11.58 1.52 12.42 2.97 13.25 0.79 10.77 0.72 11.60 1.64 12.43 2.80 13.27 0.79 10.78 0.72 11.62 1.77 12.45 2.64 13.28 0.78 10.80 0.73 11.63 1.92 12.47 2.47 13.30 0.78 10.82 0.73 11.65 2.08 12.48 2.30 13.32 0.77 10.83 0.74 11.67 2.24 12.50 2.13 13.33 0.77 10.85 0.74 11.68 2.41 12.52 1.96 13.35 0.77 10.87 0.75 11.70 2.57 12.53 1.81 13.37 0.76 10.88 0.75 11.72 2.74 12.55 1.67 13.38 0.76 10.90 0.76 11.73 2.91 12.57 1.56 13.40 0.75 10.92 '0.76 11.75 3.07 12.58 1.47 13.42 0.75 10.93 0.77 11.77 3.24 12.60 1.40 13.43 0.74 10.95 0.77 11.78 3.41 12.62 1.35 13.45 0.74 10.97 0.77 11.80 3.58 12.63 1.32 13.47 0.73 10.98 0.78 11.82 3.74 12.65 1.29 13.48 0.73 11.00 0.78 11.83 3.91 12.67 1.27 13.50 0.72 11.02 0.79 11.85 4.08 12.68 1.26 13.52 0.72 11.03 0.80 11.87 4.25 12.70 1.24 13.53 0.71 11.05 0.80 11.88 4.42 12.72 1.22 13.55 0.71 Continues on next page... �3 Proposed Conditions Page 3 Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 13.57 0.71 14.40 0.52 15.23 0.41 16.07 0.30 13.58 0.70 14.42 0.52 15.25 0.41 16.08 0.30 13.60 0.70 14.43 0.52 15.27 0.41 16.10 0.30 13.62 0.69 14.45 0.52 15.28 0.41 16.12 0.30 13.63 0.69 14.47 0.51 15.30 0.40 16.13 0.30 13.65 0.68 14.48 0.51 15.32 0.40 16.15 0.30 13.67 0.68 14.50 0.51 15.33 0.40 16.17 0.29 13.68 0.67 14.52 0.51 15.35 0.40 16.18 0.29 13.70 0.67 14.53 0.50 15.37 0.39 16.20 0.29 13.72 0.66 14.55 0.50 15.38 0.39 16.22 0.29 13.73 0.66 14.57 0.50 15.40 0.39 16.23 0.29 13.75 0.66 14.58 0.50 15.42 0.39 16.25 0.29 13.77 0.65 14.60 0.50 15.43 0.39 16.27 0.29 13.78 0.65 14.62 0.49 15.45 0.38 16.28 0.29 13.80 0.64 14.63 0.49 15.47 0.38 16.30 0.29 13.82 0.64 14.65 0.49 15.48 0.38 16.32 0.29 13.83 0.63 14.67 0.49 15.50 0.38 16.33 0.29 13.85 0.63 14.68 0.48 15.52 0.37 16.35 0.28 13.87 0.62 14.70 0.48 15.53 0.37 16.37 0.28 13.88 0.62 14.72 0.48 15.55 0.37 16.38 0.28 13.90 0.61 14.73 0.48 15.57 0.37 16.40 0.28 13.92 0.61 14.75 0.48 15.58 0.37 16.42 0.28 13.93 0.60 14.77 0.47 15.60 0.36 16.43 0.28 13.95 0.60 14.78 0.47 15.62 0.36 16.45 0.28 ' 13.97 0,60 14.80 0.47 15.63 0.36 16.47 0,28 13.98 0.59 14.82 0.47 15.65 0.36 16.48 0.28 14.00 0.59 14.83 0.46 15.67 0.35 16.50 0.28 14.02 0.58 14.85 0.46 15.68 0.35 16.52 0.27 14.03 0.58 14.87 0.46 15.70 0.35 16.53 0.27 14.05 0.57 14.88 0.46 15.72 0.35 16.55 0.27 14.07 0.57 14.90 0.46 15.73 0.35 16.57 0.27 14.08 0.57 14.92 0.45 15.75 0.34 16.58 0.27 14.10 0.56 14.93 0.45 15.77 0.34 16.60 0.27 14.12 0.56 14.95 0.45 15.78 0.34 16.62 0.27 14.13 0.56 14.97 0.45 15.80 0.34 16.63 0.27 14,15 0,56 14.98 0.44 15.82 0.33 16.65 0.27 14.17 0.55 15.00 0.44 15.83 0.33 16.67 0.27 14.18 0.55 15.02 0.44 15.85 0.33 16.68 0.27 14.20 0.55 15.03 0.44 15.87 0.33 16.70 0.26 14.22 0.55 15.05 0.44 15.88 0.33 16.72 0.26 14.23 0.54 15.07 0.43 15.90 0.32 16.73 0.26 14.25 '0.54 15.08 0.43 15.92 0.32 16.75 0.26 14.27 0.54 15.10 0.43 15.93 0.32 16.77 0.26 14.28 0.54 15.12 0.43 15.95 0.32 16.78 0.26 14.30 0.54 15.13 0.43 15.97 0.31 16.80 0.26 14.32 0.53 15.15 0.42 15.98 0.31 16.82 0.26 14.33 0.53 15.17 0.42 16.00 0,31 16.83 0.26 14.35 0.53 15.18 0.42 16.02 0.31 16.85 0.26 14.37 0.53 15.20 0.42 16.03 0.31 16.87 0.25 14.38 0.52 15.22 0.41 16.05 0.30 16.88 0.25 Continues on next page... �a , Proposed Conditions Page 4 Hydrograph Discharge Table Time -- Outflow (hrs cfs) 16.90 0.25 16.92 0.25 16.93 0.25 ...End Hydrograph Report Page 1 Hyd. No. 3 Ellington Road Hydrograph type = Reservoir Peak discharge = 2.45 cfs Storm frequency = 50 yrs Time interval = 1 min Inflow hyd. No. = 2 Reservoir name = Ellington Road Max. Elevation = 72.15 ft Max. Storage = 8,779 cuft Storage Indication method used. Total Volume=38,550 cult,0.885 acft Hydrograph Discharge Table Time Inflow Elevation Culy,A Culy. B Culy, C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 8.07 0.25 71.19 0.25 ----- ----- ----- ----- ---- 0.25 8.08 0.26 71.19 0.25 ---- ----- ---- ----- ----- 0.25 8.10 0.26 71.19 0.25 ---- ----- ----- ----- --- 0.25 8.12 0.26 71.19 0.26 ---- ----- ----- ----- ---- 0.26 8.13 0.26 71.19 0.26 ---- ----- ----- ----= ----- 0.26 8.15 0.26 71.19 0.26 -=--- ----- ----- ----- ----- 0.26 8.17 0.27 71.19 0.26 ---- ----- ----- ----- ----- 0.26 8.18 0.27 71.19 0.26 ---- ----- ----- ----- ----- 0.26 8.2 0.27 71.19 0.27 --- ----- ---- ---- -- 0.27 8.22 0.27 71.19 0.27 0.27 8.23 0.27_ 71.19 0.27 0.27 8.25 0.28 71.19 0.27 ----- ----- ----- ----- ---- 0.27 8.27 0.28 71.19 0.27 ---- ---- 0.27 8.28 0.28 71.19 0.28 ----- ----- ----- 0.28 8.30 0.28 71.19 0.28 ----- ----- ----- ----- ----- 0.28 8.32 0.28 71.19 0.28 ----- ----- ----- ---- 0.28 8.33 0.29 71.19 0.28 ----- ----- ----- ----- ---- 0.28 8.35 0.29 71.19 0.28 0.28 8.37 0.29 71.19 0.29 ---- ----- ----- ----- ----- 0.29 8,38 0,29 71,19 0.29 ----- ----- ----- ---- --- 0.29 8.40 0.30 71.19 0.29 --_- ----- ----- ----- ---- 0.29 8.42 0.30 71.19 0.29 0.29 8.43 0.30 71.19 0.30 ----- ----- ----- ----- ----- 0.30 8.45 0.30 71.19 0.30 ----- ----- ----- ----- ----- 0.30 8.47 0.30 71.19 0.30 --- ----- ----- ----- ---- 0.30 8.48 0.31 71.19 0.30 ---- ----- ----- ----- ---- 0.30 8.50 0.31 71.19 0.30 ---- ----- ----- ----- ----- 0.30 8.52 0.31 71.19 0.31 ----- ----- ----- ----- ----- 0.31 8.53 0.31 71.19 0.31 --- I ----- ----- ----- ---- 0.31 8.55 0.32_ 71.19 0.31 ----- ----- ----- ----- ----- 0.31 8,57 0,32 71.19 0,31 . ---- ----- ----- ----- ----- 0,31 8.58 0.32 71.19 0.32 ----- ----- ----- ----- ----- 0.32 8.60 0.32 71.19 0.32 ----- ----- ----- ----- ----- 0.32 8.62 0.32 71.19 0.32 ----- ----- ----- ----- ----- 0.32 8.63 0.33 71.19 0.32 --- 0.32 -- ----- ----- ----- ----- 8.65 0.33 71.20 0.32 0.32 8.67 0.33 71.20 0.33 ----- ----- ----- ----- ----- 0.33 Continues on next page... Ellington Road Page 2 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 8.68 0.33 71.20 0.33 ---- ----- --- ---- -- 0.33 8.70 0.33 71.20 0.33 ----- ---- --- ----- --- 0.33 8.72 0.34 71.20 0.33 ----- ----- -- ----- --- 0.33 8.73 0.34 71.20 0.33 ----- ----- --- ----- ---- 0.34 8.75 0.34 71.20 0.34 ----- ---- ----- ---- - - 0.34 8.77 0.34 71.20 0.34 ---- ---- --- ---- --- 0.34 8.78 0.35 71.20 0.34 ---- -- --- -- --- 0.34 8.80 0.35 71.20 0.34 ----- ----- ---- ----- --- 0.34 8.82 0.35 71.20 0.35 ----- ----- ----- ----- --- 0.35 8.83 0.35 71.20 0.35 ----- ---- ---- ---- --- 0.35 8.85 0.36 71.20 0.35 ----- ---- ---- --_ __- 0.35 8.87 0.36 71.20 0.35 ---- ----- --- ---- --- 0.35 8.88 0.36 71.20 0.36 ----- ----- -- ---- --- 0.36 8.90 0.36 71.20 0.36 ----- ----- ---- ----- --- 0.36 8.92 0.36 71.20 0.36 ---- --- �-- --- 0.36 ----- 8.93 0.37 71.20 0.36 0.36 8.95 0.37 71.20 0.36 ----- ----- --- ----- --- 0.36 8.97 0.37 71.20 0.37 ----- ----- --- ----- --- 0.37 8.98 0.37 71.20 0.37 ----- ----- -- --- -- 0.37 9.00 0.38 71.20 0.37 ----- ----- --- ----- --- 0.37 9.02 0.38 71.20 0.37 ----- ----- ---- ---- -- 0.37 9.03 0.38 71.20 0.38 --- -_-- --- 0.38 9.05 0.38 71.20 0.38 ' 0.38 ----- ----- 9.07 0.38 71.20 0.38 0.38 9.08 0.39 71.20 0.38 ----- ---- ---- ----- --- 0.38 N 9.10 0.39 71.20 0.38 ---- -- ---- -- 0.38 ----- 9.12 0.39 71.20 0.39 0.39 9.13 0.39 71.20 0.39 ----- ---- ----- ----- --- 0.39 9.15 0.40 71.20 0.39 ----- ----- --- --- -- 0.39 9.17 0.40 71.20 0.39 -w ---_ _-- 0.39 ----- _---- 9.18 0.40 71.20 0.40 0.40 9.20 0.40 71.20 0.40 ----- ---- -- ----- -- 0.40 9.22 0.41 71.20 0.40 ---- -- --- ----- -- 0.40 9.23 0.41 71.20 0.40 -- ---- -- 0.40 ----- -_--- 9.25 0.41 71.20 0.41 0.41 9.27 0.41 71.20 0.41 ----- --- -----. ----- ---- 0.41 9.28 0.41 71.20 0.41 __-__ _�__ =- M___ N- 0.41 9.30 0.42 71.20 0.41 0.41 9.32 0.42 71.20 0.41 ----- ----- --- ---- ---- 0.41 9.33 0.42 71.21 0.42 ----- ----- --- ---- --- 0.42 9.35 0.42 71.21 0.42 -- ---_ 0.42 _---- ----- 9.37 0.43 71.21 0.42 0.42 9.38 0.43 71.21 0.42 ----- ----- -- ----- --- 0.42 9.42 0.43 71.21 0.43 ----- -�--- ==- =_= _- 0.43 9.42 0.43 71.21 0.43 0.43 9.43 0.44 71.21 0.43 0.43 9.45 0.44 71.21 0.43 ----- ----- ----- ----- -- 0.43 9.47 0.44 71.21 0.44 --- ---- -- 0.44 ---_ ----- 9.48 0.44 71.21 0.44 0.44 9.50 0.44 71.21 0.44 ----- ----- --- ---- --- 0.44 Continues on next page... ray Ellington Road Page 3 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 9.52 0.45 71.21 0.44 ---- ----- ----- ----- ----- 0.44 9.53 0.45 71.21 0.44 ----- ----- ----- ----- ---- 0.44 9.55 0.45 71.21 0.45 ----- ----- ----- ----- --- 0.45 9.57 0.45 71.21 0.45 --_ _____ _____ ___� �___ 0.45 9.58 0.46 71.21 0.45 0.45 9.60 0.46 71.21 0.45 ----- ----- ----- ----- ---- 0.45 9.62 0.46 71.21 0.46 ----- ----- ----- ----- --- 0.46 9.63 0.46 71.21 0.46 --- 0.46 ----- ----- ----- ----- 9.65 0.47 71.21 0.46 0.46 9.67 0.47 71.21 0.46 ----- ----- ----- ----- ---- 0.46 9.68 0.47 71.21 0.47 ----- ----- ----- ----- --- 0.47 9.70 0.47 71.21 0.47 ----- ----- ----- ----- ---- 0.47 9.72 0.47 71.21 0.47 ----- ----- ----- ----- ----- 0.47 9.73 0.48 71.21 0.47 ----- ----- ----- --- ---- 0.47 9.75 0.48 71.21 0.47 ---- ----- ----- ----- --- 0.47 9.77 0.48 71.21 0.48 ----- ----- ----- ----- ---- 0.48 9.78 0.48 71.21 0.48 ----- ----- ----- ----- --- 0.48 9.80 0.49 71.21 0.48 --- ----- ----- ----- ---- 0.48 9.82 0.49 71.21 0.48 --- 0.48 ----- ---- ----- ----- 9.83 0.49 71.21 0.49 0.49 9.85 0.49 71.21 0.49 ----- ----- ----- ---- --- 0.49 9.87 0.50 71.21 0.49 ----- ----- ----- ---- ---- 0.49 9.88 0.50 71.21 0.49 ----- ----- ----- ----- --- . 0.49 9.90 0.50 71.21 0.50 ---- ----- ----- ----- --- 0.50 9.92 0.50 71.21 0.50 ----- ----- ----- ---- ---- 0.50 9.93 0.51 71.21 0.50 ----- ----- ----- ----- ---- 0.50 9.95 0.51 71.21 0.50 ---- ----- ----- ----- ---- 0.50 9.97 0.51 71.21 0.51 ----- ----- ----- ---- ---- 0.51 9.98 0.51 71.22 0.51 ----- ---- ----- --- --- 0.51 10.00 0.51 71.22 0.51 ---- ----- ----- ----- ---- 0.51 10.02 0.52 71.22 0.51 ----- ----- ----- ----- ---- 0.51 10.03 0.52 71.22 0.51 ----- ----- ----- ----- --- 0.51 10.05 0.52 71.22 0.52 ---- ----- ----- ----- ---- 0.52 10.07 0.53 71.22 0.52 ----- --- ----- ----- --- 0.52 10.08 0.53 71.22 0.52 ---- ----- ----- ----- --- 0.52 10.10 0.53 71.22 0.53 ----- ---- ----- =---- --- 0.53 10.12 0.54 71.22 0.53 ----- ----- ---- ----- ---- 0.53 10.13 0.54 71.22 0.53 ----- ----- ----- ---- --- 0.53 " 10.15 0.55 71.22 0.54 ----- ----- ----- ----- ----- 0.54 10.17 0.55 71.22 0.54 ----- ----- ----- ----- --- 0.54 10.18 0.55 71.22 0.55 ----- ----- ----- ----- ---- 0.55 10.20 0.56 71.22 0.55 ----- ----- ----- ----- ---- 0.55 10.22 0.56 71.22 0.56 ----- ----- ----- ---- --- 0.56 10.23 0.57 71.22 0.56 ----- ----- ----- ----- --- 0.56 10.25 0.57 71.22 0.56 0.56 ----- ----- ----- ----- ---- 10.27 0.58 71.22 0.57 0.57 10.28 0.58 71.22 0.57 ----- ----- ----- ----- ----- 0.57 10.30 0.59 71.22 0.58 ----- ----- ----- ----- ---- 0.58 10.32 0.59 71.22 0.58 ----- ----- ----- ---- --- 0.58 10.33 0.60 71.22 0.59 ----- ----- ----- ----- ---- 0.59 Continues on next page... Ellington Road Page 4 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 10.35 0.60 71.22 0.59 ---- ----- ---- ---- ----- 0.59 10.37 0.61 71.22 0.60 0.60 10.38 0.61 71.23 0.60 ----- ----- ----- ----- ----- 0.60 10.40 0.62 71.23 0.61 ----- ----- ----- ----- ----- 0.61 10.42 0.62 71.23 0.61 ----- - ----- ----- ----- ----- 0.61 10.43 0.62 71.23 0.62 ----- ---- ----- ----- ----- 0.62 10.45 0.63 71.23 0.62 ---- ----- --- ----- ----- 0.62 10.47 0.63 71.23 0.62 0.62 ----- ---- ----- ---- ----- 10.48 0.64 71.23 0.63 0.63 10.50 0.64 71.23 0.63 ----- ----- ----- ----- ----- 0.63 10.52 0.65 71.23 0.64 ----- ----- ---- ----- ----- 0.64 10.53 0.65 71.23 0.64 ----- ----- ---- ----- ----- 0.64 10.55 0.66 71.23 0.65 ----- ----- ----- ----- ----- 0.65 10.57 0.66 71.23 0.65 ----- ---- --- ----- ----- 0.65 10.58 0.67 71.23 0.66 ---- ----- ---- ----- ----- 0.66 10.60 0.67 71.23 0.66 ----- ----- ----- ----- ----- 0.66 10.62 0.68 71.23 0.67 ----- ----- ----- ----- ----- 0.67 10.63 0.68 71.23 0.67 ---- ----- ----- ----- ----- 0.67 10.65 0.69 71.23 0.68 ----- ----- ----- ----- ----- 0.68 10.67 0.69 71.23 0.68 ----- ----- ----- ----- ----- 0.68 10.68 0.69 71.23 0.69 ----- ----- ----- ----- ----- 0.69 10.70 0.70 71.23 0.69 ---- ----- ----- ----- ----- 0.69 10.72 0.70 71.24 0.69 ----- ----- ----- ----- ----- 0.69 10.73 0.71 71.24 0.70 ---- ----- ---- ----- ----- 0.70 10.75 0.71 71.24 0.70 ----- ----- ----- ----- ----- 0.70 10.77 0.72 71.24 0.71 -- ----- ----- ----- ----- 0.71 10.78 0.72 71.24 0.71 ---- ----- ----- ---- ----- 0.71 10.80 0.73 71.24 0.72 ----- ----- ----- ---- ----- 0.72 10.82 0.73 71.24 0.72 ----- ----- --- ----- ----- 0.72 10.83 0.74 71.24 0.73 ----- ----- ----- ----- ----- 0.73 10.85 0.74 71.24 0.73 ----- ----- ---- ----- ----- 0.73 10.87 0.75 71.24 0.74 ----- ----- ----- ----- ----- 0.74 10.88 0.75 71.24 0.74 --- ----- --- ----- ----- 0.74 10.90 0.76 71.24 0.75 ----- --- ---- ----- ----- 0.75 10.92 0.76 71.24 0.75 ---- ----- ----- ----- ----- 0.75 10.93 0.77 71.24 0.76 ----- ----- ----- ----- ----- 0.76 10.95 0.77 71.24 0.76 ----- ----- ----- ----- ----- 0.76 10.97 0.77 71.24 0.77 ----- ----- ----- ----- ----- 0.77 10.98 0.78 71.24 0.77 ----- ----- ---- ----- ----- 0.77 11.00 0.78 71.24 0.77 ----- ----- --- ----- ----- 0.77 11.02 0.79 71.24 0.78 ----- ----- ----- ----- ----- 0.78 11.03 0.80 71.25 0.78 ----- ----- ----- ----- ----- 0.78 11.05 0.80 71.25 0.78 ---- ----- ----- ----- ----- 0.78 11.07 0.81 71.25 0.79 ----- ----- ----- ----- ----- 0.79 11.08 0.82 71.25 0.79 ----- ----- ----- ----- ----- 0.79 11.10 0.84 71.25 0.80 ----- ----- ----- ----- ----- 0.80 11.12 0.85 71.25 0.81 ----- ----- ----- ----- ----- 0.81 11.13 0.87 71.26 0.82 ----- ----- ----- ----- ----- 0.82 11.15 0.88 71.26 0.83 ----- ----- ----- ----- ----- 0.83 11.17 0.90 71.26 0.84 ----- ----- ----- ----- ----- 0.84 i� Continues on next page... Ellington Road Page 7 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 12.85 1.08 72.12 2.45 2.45 _--- ----- ----- ----- ----- 12.87 1.06 72.12 2.45 2.45 12.88 1.04 72.12 2.45 ----- ----- ----- ----- ----- 2.45 12.90 1.03 72.12 2.45 2.45 ----- ----- ----- ----- ----- 12.92 1.01 72.12 2.45 2.45 12.93 0.99 72.11 2.45 ----- ----- ----- ----- ---- 2.45 12.95 0.97 72.11 2.45 ----- ----- ----- ----- ----- 2.45 12.97 0.96 72.11 2.45 2.45 _--- ----- ----- _--- ----- 12.98 0.94 72.11 2.45 2.45 13.00 0.92 72.11 2.45 ----- ----- ----- ----- ----- 2.45 13.02 0.90 72.11 2.45 ----- ----- ----- ----- ----- 2.45 13.03 0.89 72.10 2.45 ----- ----- ----- ----- ----- 2.45 13.05 0.87 72.10 2.45 ----- ----- ----- ----- ----- 2.45 13.07 0.86 72.10 2.45 ----- ----- ----- ----- ----- 2.45 13. 0.85 72.10 2.45 2.45 13.10 10 0.84 72.10 2.45 2.45 ----- ----- ----- ----- ----- 13.12 0.83 72.09 2.45 2.45 13.13 0.83 72.09 2.45 ----- ----- ---- ----- ----- 2.45 13.15 0.82 72.09 2.45 ----- , ----- ----- ----- ----- 2.45 13.17 0.82 72.09 2.45 ----- ----- ----- ----- ----- 2.45 13.18 0.81 72.09 2.45 ----- ----- ----- ----- ----- 2.45 13.20 0.81 72.09 2.45 ----- ----- ----- ----- ----- 2.45 13.22 0.80 72.08 2.45 � 2.45 ----- ----- ----- ----- ----- 13.23 0.80 72.08 2.45 2.45 13.25 0.79 72.08 2.45 ----- ----- ----- ----- ----- 2.45 13.27 0.79 72.08 2.45 ----- ----- ----- ----- ---- 2.45 13.28 0.78 72.08 2.45 ----- ----- ----- ----- ----- 2.45 13.30 0.78 72.07 2.45 ----- ----- ----- ----- ----- 2.45 13.32 0.77 72.07 2.45 ----- ----- ----- ---- ----- 2.45 13.33 0.77 72.07 2.45 ----- ----- ----- ----- ----- 2.45 13.35 0.77 72.07 2.45 ----- ----- ----- ----- ----- 2.45 13.37 0.76 72.07 2.45 ----- ----- ----- ----- ----- 2.45 13.38 0.76 72.06 2.45 ----- ----- ----- ----- ---- 2.45 13.40 0.75 72.06 2.45 _--- -_-- -_-- ----- ---- 2.45 13.42 0.75 72.06 2.45 2.45 13.43 0.74 72.06 2.45 ---- ----- ----- ----- ----- 2.45 13.45 0.74 72.06 2.45 ----- ----- ----- ----- ----- 2.45 13.47 0.73 72.06 2.45 ----- ----- ----- ----- ----- 2.45 13.48 0.73 72.05 2.45 ----- ----- ----- ----- ----- 2.45 13.50 0.72 72.05 2.45 ----- ----- ----- ----- ----- 2.45 13.52 0.72 72.05 2.45 ----- ----- ----- ----- ---- 2.45 13.53 0.71 72.05 2.45 ----- ----- ----- ----- ----- 2.45 13.55 0.71 72.05 2.45 ----- ----- ----- ----- ----- 2.45 13.57 0.71 72.04 2.45 ----- ----- ----- ----- ----- 2.45 13.58 0.70 72.04 2.45 ----- ----- ----- ----- ----- 2.45 13.60 0.70 72.04 2.45 ----- ----- ----- ----- ----- 2.45 13.62 0.69 72.04 2.45 ----- ----- ----- ----- ----- 2.45 13.63 0.6 72.04 2.45 2.45 13.65 0.68 72.03 2.45 2.45 ----- _--- ----- ----- ----- 13.67 0.68 72.03 2.45 2.45 Continues on next page... Ga� Ellington Road Page 8 Hydrograph Discharge Table Time Inflow Elevation Culv.A Culv. B Culv. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 13.68 0.67 72.03 2.45 ----- ----- ----- ----- ---- 2.45 13.70 0.67 72.03 2.45 ----- ----- ----- ----- --- 2.45 13.72 0.66 72.03 2.45 ----- ----- ----- ----- ---- 2.45 13.73 0.66 72.02 2.45 --- 2.45 ---- ----- ----- ----- 13.75 0.66 72.02 2.45 2.45 13.77 0.65 72.02 2.45 ----- ----- ----- --- --- 2.45 13.78 0.65 72.02 2.45 ----- ----- ----- ---- ----- 2.45 13.80 0.64 72.01 2.45 ----- ----- ----- ----- ---- 2.45 13.82 0.64 72.01 2.45 ----- ----- ----- ----- ---- 2.45 13.83 0.63 72.01 2.45 ----- ----- ----- ----- ----- 2.45 13.85 0.63 72.01 2.45 ----- ----- ----- ----- ---- 2.45 13.87 0.62 72.01 2.45 ---- 2.45 ----- ----- ----- ----- 13.88 0.62 72.00 2.45 2.45 13.90 0.61 72.00 2.45 ----- ----- ----- ----- ---- 2.45 13.92 0.61 72.00 2.45 ----- ----- ----- ----- ----- 2.45 13.93 0.60 71.92 2.26 ----- ---- ----- ---- M-- 2.26 13.95 0.60 71.83 2.19 2.19 13.97 0.60 71.75 2.05 ----- ----- ----- ----- ----- 2.05 13.98 0.59 71.67 1.92 ----- ----- ----- ---- ---- 1.92 14.00 0.59 71.61 1.78 ----- ---- ----- ----- ----- 1.78 14.02 0.58 71.54 1.65 ----- ----- ----- ----- ----- 1.65 14.03 0.58 71.49 1.53 ----- ----- ----- ----- ----- 1.53 14.05 0.57 71.44 1.41 ----- ----- ----- ----- ---- 1.41 14.07 0.57 71.40 1.30 ----- ----- ----- ----- --- 1.30 14.08 0.57 71.36 1.19 ----- ----- ----- ----- ---- 1.19 14.10 0.56 71.3.3 1.10 ----- ----- ----- ----- ---- 1.10 14.12 0.56 71.30 1.00 ----- ----- ----- ----- ---- 1.00 14.13 0.56 71.28 0.92 ----- ---- ----- --- ---- 0.92 14.15 0.56 71.26 0.85 ----- ----- ----- ---- ----- 0.85 14.17 0.55 71.25 0.79 ----- 0.79 ----- ----- ----- ----- 14.18 0.55 71.24 0.72 0.72 14.20 0.55 71.23 0.65 ----- ----- ----- ----- ---- 0.65 14.22 0.55 71.23 0.61 ----- ----- ----- ----- ---- 0.61 14.23 0.54 71.22 0.58 0.58 ----- ----- ----- ----- ---- 14.25 0.54 71.22 0.57 0.57 14.27 0.54 71.22 0.56 ----- ----- ----- ----- ----- 0.56 14.28 0.54 71.22 0.55 ----- ----- ----- ----- ----- 0.55 14.30 0.54 71.22 0.54 ----- ----- ----- ----- ----- 0.54 14.32 0.53 71.22 0.54 ----- ----- ----- ----- ---- 0.54 14.33 0.53 71.22 0.54 ----- ----- ----- ----- ----- 0.54 14.35 0.53 71.22 0.53 _____ _____ ____ _____ _____ 0.53 14.37 0.53 71.22 0.53 0.53 14.38 0.52 71.22 0.53 ---- ----- ----- ----- ----- 0.53 14.40 0.52 71.22 0.53 ----- ----- ----- ----- ----- 0.53 14.42 0.52 71.22 0.52 ----- ----- ----- ----- ----- 0.52 14.43 0.52 71.22 0.52 ----- ----- ----- ----- ----- 0.52 14.45 0.52 71.22 0.52 ----- ----- ----- ----- ----- 0.52 14.4 0.51 71.22 0.52 0.52 14.48 0.51 71.22 0.52 0.52 ----- ----- ----- ----- - 14.50 0.51 71.22 0.51 - 0.51 Continues on next page... :r ' Ellington Road Page 9 Hydrograph Discharge Table ' Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Welr C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 14.52 0.51 71.22 0.51 Y___ _____ _____ _____ A-_ 0.51 14.53 0.50 71.22 0.51 0.51 14.55 0.50 71.21 0.51 ---- ----- ----- ----- ----- 0.51 ' 14.57 0.50 71.21 0.50 ----- _____ _____ -�__ ---- 0.50 14.58 0.50 71.21 0.50 0.50 14.60 0.50 71.21 0.50 ----- ----- ----- ----- ----- 0.50 14.62 0.49 71.21 0.50 ----- ----- ----- ----- ----- 0.50 ' 14.63 0.49 71.21 0.50 ----- ----- ----- ----- ----- 0.50 14.65 0.49 71.21 0.49 ---- ----- ----- ----- ----- 0.49 14.67 0.49 71.21 0.49 ----- ----- ----- ----- ----- 0.49 ' 14. 0.48 71.21 0.49 _--- 0.49 14.70 70 0.48 71.21 0.49 0.49 14.72 0.48 71.21 0.48 ----- ----- ----- ----- 0.48 14.73 0.48 71.21 0.48 ---- ----- ----- ----- ----- 0.48 14.75 0.48 71.21 0.48 _--- 0.48 14.77 0.47 71.21 0.48 ----- ----- ----- ----- 0.48 14.78 0.47 71.21 0.48 ----- ----- ----- ----- ----- 0.48 14.80 0.47 71.21 0.47 ---- ----- ----- ----- ----- 0.47 ' 14.82 0.47 71.21 0.47 0.47 ----- ----- ----- ----- --_- 14.83 0.46 71.21 0.47 0.47 14.85 0.46 71.21 0.47 ----- ----- ----- ----- ----- 0.47 14.88 0.46 71.21 0.46 ----- ----- ----- ----- _--= 0.46 14.88 0.46 71.21 0.46 0.46 14.90 0.46 71.21 0.46 0.46 14.92 0.45 71.21 0.46 ---- ----- ----- ---- ----- 0.46 14.93 0.45 71.21 0.46 _____ _____ =___ _____ ____ 0.46 14.95 0.45 71.21 0.45 0.45 14.97 0.45 71.21 0.45 ---- ----- ----- ----- ----- 0.45 14.98 0.44 71.21 0.45 ---- ----- ----- ----- ----- 0.45 ' 15.00 0.44 71.21 0.45 _____ _____ _____ _____ _____ 0.45 15.02 0.44 71.21 0.44 0.44 15.03 0.44 71.21 0.44 ----- ----- ----- ----- ----- 0.44 ' 15.07 0.44 71.21 0.44 ----- ----- ---- ---_-- ----- 0.44 15.07 0.43 71.21 0.44 0.44 15.08 0.43 71.21 0.44 0.44 15.10 0.43 71.21 0.43 ----- ----- ----- ----- ----- 0.43 15.12 0.43 71.21 0.43 ----- _____ ___=_ _____ _____ 0.43 15.13 0.43 71.21 0.43 0.43 15.15 0.42 71.21 0.43 ----- ----- ----- ----- ----- 0.43 15.17 0.42 71.21 0.43 ----- ----- ----- ----- ----- 0.43 ' 15.18 0.42 71.21 0.42 0.42 ----- ----- ----- ----- --_- 15.20 0.42 71.21 0.42 0.42 15.22 0.41 71.21 0.42 ----- ----- ----- ----- ----- 0.42 15.23 0.41 71.21 0.42 ---- ----- ----- ----- ----- 0.42 15.25 0.41 71.20 0.41 0.41 15.27 0.41 71.20 0.41 0.41 15.28 0.41 71.20 0.41 ----- ----- ----- ----- ----- 0.41 15.30 0.40 71.20 0.41 _____ _ ___ ___- _____ _____ 0.41 15.32 0.40 71.20 0.41 0.41 15.33 0.40 71.20 0.40 ----- ----- ----- ----- ----- 0.40 Continues on next page... ' Ellington Road Page 10 Hydrograph Discharge Table ' Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) ' 15.35 0.40 71.20 0.40 ----- _____ _____ _____ ____= 0.40 15.37 0.39 71.20 0.40 0.40 15.38 0.39 71.20 0.40 ---- ----- ----- ----- ----- 0.40 15.40 0.39 71.20 0.39 -� ---- ----- --__- ---- 0.39 15.42 0.39 71.20 0.39 0.39 15.43 0.39 71.20 0.39 ---- ----- ----- ----- ----- 0.39 15.45 0.38 71.20 0.39 ---- ----- ----- ----- ----- 0.39 e 15.47 0.38 71.20 0.39 ---- 0.39 15.48 0.38 71.20 0.38 ----- ----- ----- ----- 0.38 15.50 0.38 71.20 0.38 ----- ----- ----- ----- ----- 0.38 15.52 0.37 71.20 0.38 0.38 15.53 0.37 71.20 0.38 0.38 -Y-- ----- - 15.55 0.37 71.20 0.37 ----- ----- 0.37 15.57 0.37 71.20 0.37 ----- ----- ----- ---- ----- 0.37 15.58 0.37 71.20 0.37 --_- 0.37 15.60 0.36 71.20 0.37 ----- ----- ----- ----- 0.37 15.62 0.36 71.20 0.37 ---- ----- ----- ----- ----- 0.37 15.63 0.36 71.20 0.36 --- ----- ----- ----- ----- 0.36 ' 15.65 0.36 71.20 0.36 __-_ _____ _____ _____ _____ 0.36 15.67 0.35 71.20 0.36 6.36 15.68 0.35 71.20 0.36 ---- ----- ----- ----- ----- 0.36 ' 15.72 0.35 71.20 0.35 ----- ===__ ----- ----- --_= 0.35 15.72 0.35 71.20 0.35 . 0.35 15.73 0.35 71.20 0.35 0.35 15.75 0.34 71.20 0.35 --_ ----- ----- ----- ____ 0.35 ' 15.77 0.34 71.20 0.35 _�_ _____ _____ _____ =____ 0.35 15.78 0.34 71.20 0.34 0.34 15.80 0.34 71.20 0.34 ---- ----- ----- ----- ----- 0.34 15.82 0.33 71.20 0.34 --- ----- ----- ----- ----- 0.34 ' 15.83 0.33 71.20 0.34 ----- ----- ----- ----- ----- 0.34 15.85 0.33 71.20 0.33 ---- ----- ----- ----- ----- 0.33 15.87 0.33 71.20 0.33 ----- ----- ----- ----- ----- 0.33 15.90 0.33 71.20 0.33 ----- ----- ---- ----- =___= 0.33 15.90 0.32 71.20 0.33 0.33 15.92 0.32 71.20 0.33 0.33 15.93 0.32 71.20 0.32 ----- ----- ----- ----- ----- 0.32 15.95 0.32 71.19 0.32 NM- ---- 0.32 15.97 0.31 71.19 0.32 ----- ----- ----- 0.32 15.98 0.31 71.19 0.32 ----- ----- ----- ----- ----- 0.32 16.00 0.31 71.19 0.31 ---- ---- ----- ----- ----- 0.31 16.02 0.31 71.19 0.31 _____ _____ ___=_ _____ _____ 0.31 16.03 0.31 71.19 0.31 0.31 16.05 0.30 71.19 0.31 ----- ----- ----- ----- ----- 0.31 16.07 0.30 71.19 0.31 ---- ----- ----- ----- ----- 0.31 16.08 0.30 71.19 0.30 _____ _____ _____ _____ _____ 0.30 16.10 0.30 71.19 0.30 0.30 16.12 0.30 71.19 0.30 ----- ----- ----- ----- ----- 0.30 16.13 0.30 71.19 0.30 ____ ____ _____ _____ _____ 0.30 16.15 0.30 71.19 0.30 0.30 16.17 0.29 71.19 0.30 ----- ----- ----- ----- ----- 0.30 Continues on next page... r ' Ellington Road Page 11 Hydrograph Discharge Table ' Time Inflow Elevation Culy.A Cuiv. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) ' 16.18 0.29 71.19 0.30 ----- ----- ----- ----- ----- 0.30 16.20 0.29 71.19 0.30 ---- ----- ----- ----- ----- 0.29 16.22 0.29 71.19 0.29 ----- ----- ----- ----- ----- 0.29 16.23 0.29 71.19 0.29 -_-- 0.29 16.25 0.29 71.19 0.29 ----- ----- ----- ----- 0.29 16.27 0.29 71.19 0.29 ---- ----- ----- ----- ----- 0.29 16.28 0.29 71.19 0.29 ---- ----- ---- ----- ----- 0.29 16.30 0.29 71.19 0.29 ---- ---- _-- 0.29 16.32 0.29 71.19 0.29 ----- ----- 0.29 16.33 0.29 71.19 0.29 ----- ----- ----- ----- ----- 0.29 16.35 0.28 71.19 0.29 ---- ----- ----- ----- ----- 0.29 ' 16.37 0.28 71.19 0.29 ----- ----- ---- --- ----- 0.29 16.38 0.28 71.19 0.28 0.28 16.40 0.28 71.19 0.28 ---- ----- ----- ----- ----- 0.28 16.42 0.28 71.19 0.28 ---- ---- 0.28 16.43 0.28 71.19 0.28 ---- ----- ----- 0.28 16.45 0.28 71.19 0.28 ---- ----- ----- ---- ----- 0.28 16.47 0.28 71.19 0.28 ---- ----- ---- ---- ----- 0.28 ' 16.48 0.28 71.19 0.28 ---- ----- ---- --- ----- 0.28 16.50 0.28 71.19 0.28 0.28 16.52 0.27 71.19 0.28 ----- ----- ----- ----- ----- 0.28 16.53 0.27 71.19 0.28 ---- 0.28 16.55 0.27 71.19 0.27 0.27 16.57 0.27 71.19 0.27 ----- ----- ----- ----- 0.27 16.58 0.27 71.19 0.27 ---- ----- ----- ---- ----- 0.27 ' 16.60 0.27 71.19 0.27 _--- 0.27 ----- ----- ----- ----- 16.62 0.27 71.19 0.27 0.27 16.63 0.27 71.19 0.27 ----- ----- ----- ----- ----- 0.27 16.65 0.27 71.19 0.27 ---- ----- ----- ---- ----- 0.27 ' 16.67 0.27 71.19 0.27 0.27 ----- ----- ----- ---- ---- 16.68 0.27 71.19 0.27 0.27 16.70 0.26 71.19 0.27 ----- ----- ----- ----- ----- 0.27 ' 16.7 0.26 71.19 0.2 --- -- 0.2 16.73 0.26 71.19 0.266 0.266 16.75 0.26 71.19 0.26 ---- ----- ----- 0.26 16.77 0.26 71.19 0.26 ---- ----- ----- ---- ----- 0.26 ' 16.78 0.26 71.19 0.26 -_-- ---- 0.26 16.80 0.26 71.19 0.26 ----- ----- ----- 0.26 16.82 0.26 71.19 0.26 ----- ----- ----- ----- ----- 0.26 16.83 0.26 71.19 0.26 ----- ----- ----- ----- ----- 0.26 16.85 0.26 71.19 0.26 ---- 0.26 ----- ----- ----- ----- 16.87 0.25 71.19 0.26 0.26 16.88 0.25 71.19 0.26 ----- ----- ----- ----- ----- 0.26 ' 16.9 0.25 71.19 0.25 ---- 0.25 16.92 0.25 71.19 0.25 0.25 16.93 0.25 71.19 0.25 ----- ----- ---- ---- 0.25 16.95 0.25 71.19 0.25 ----- ----- ----- ----- ----- 0.25 16.97 0.25 71.19 0.25 ----- ----- ----- ----- ----- 0.25 ...End tydrograph Summary Report Page 1 'Hyd. Hydrograph Peak Time Time to Volume Return Inflow Maximum Maximum Hydrograph No. type flow interval peak period hyd(s) elevation storage description (origin) (cfs) (min) (min) (acft) (yrs) (ft) (cuft) 1 SCS Runoff 8.0 1 725 0.56 100 — ---- --- Existing Condi 12 SCS Runoff 12.5 1 724 0.99 100 — ---- -- Proposed Condi 3 Reservoir 2.5 1 749 0.99 100 2 72.18 10550 Ellington Road i Proj. file: 87546A10.GPW OF file: New.IDF Run date: 02-11-1999 Hydrograph Report Page 1 Hyd. No. 1 Existing Conditions Hydrograph type = SCS Runoff Peak discharge = 7.96 cfs Storm frequency = 100 yrs Time interval = 1 min Drainage area = 1.8 ac Curve number = 71 Basin Slope = 0 % Hydraulic length = 0 ft Tc method = USER Time of conc. (Tc) = 5 min Total precip. = 6.90 in Distribution = Type III ' Storm duration = 24 hrs Shape factor = 484 Total Volume=24,495 cuft,0.562 acft ' Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) ' 10.80 0.25 11.35 0.47 11.90 2.74 12.45 2.18 10.82 0.26 11.37 0.48 11.92 2.90 12.47 2.04 10.83 0.26 11.38 0.49 11.93 3.12 12.48 1.91 10.85 0.26 11.40 0.51 11.95 3.43 12.50 1.77 10.87 0.27 11.42 0.52 11.97 3.88 12.52 1.63 10.88 0.27 11.43 0.53 11.98 4.49 12.53 1.51 10.90 0.27 11.45 0.54 12.00 5.24 12.55 1.40 10.92 0.28 11.47 0.55 12.02 6.07 12.57 1.30 10.93 0.28 11.48 0.56 12.03 6.87 12.58 1.23 10.95 0.28 11.50 0.58 12.05 7.52 12.60 1.18 10.97 0.29 11.52 0.59 12.07 7.91 12.62 1.14 ' 10,98 0.29 11.53 0.61 12.08 7.96 << 12.63 1.11 11.00 0.29 11.55 0.64 12.10 7.72 12.65 1.09 11.02 0.30 11.57 0.68 12.12 7.24 12.67 1.07 11.03 0.30 11.58 0.73 12.13 6.61 12.68 1.06 ' 11.05 0.31 11.60 0.79 12.15 5.93 12.70 1.04 11.07 0.31 11.62 0.86 12.17 5.30 12.72 1.03 11.08 0.32 11.63 0.94 12.18 4.78 12.73 1.02 11.10 0.33 11.65 1.03 12.20 4.38 12.75 1.00 11.12 0.34 11.67 1.12 12.22 4.08 12.77 0.99 11.13 0.34 11.68 1.22 12.23 3.86 12.78 0.97 11.15 0.35 11.70 1.32 12.25 3.70 12.80 0.96 11.17 0.36 11.72 1.42 12.27 3.57 12.82 0.95 11.18 0.37 11.73 1.52 12.28 3.45 12.83 0.93 11.20 0.38 11.75 1.63 12.30 3.33 12.85 0.92 11.22 0.39 11.77 1.74 12.32 3.21 12.87 0.90 11.23 0.40 11.78 1.86 12.33 3.08 12.88 0.89 ' 11.25 0.41 11.80 1.97 12.35 2.96 12.90 0.87 11.27 0.42 11.82 2.09 12.37 2.83 12.92 0.86 11.28 0.43 11.83 2.22 12.38 2.70 12.93 0.85 ' 11.30 0.44 11.85 2.34 12.40 2.57 12.95 0.83 11.32 0.45 11.87 2.47 12.42 2.44 12.97 0.82 11.33 0.46 11.88 2.61 12.43 2.31 12.98 0.80 Continues on next page... ' Existing Conditions Page 2 Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) ' 13.00 0.79 13.83 0.55 14.67 0.43 15.50 0.34 13.02 0.77 13.85 0.55 14.68 0.43 15.52 0.34 13.03 0.76 13.87 0.55 14.70 0.43 15.53 0.34 13.05 0.75 13.88 0.54 14.72 0.43 15.55 0.33 13.07 0.74 13.90 0.54 14.73 0.43 15.57 0.33 13.08 0.73 13.92 0.54 14.75 0.42 15.58 0.33 13.10 0.72 13.93 0.53 14.77 0.42 15.60 0.33 13.12 0.72 13.95 0.53 14.78 0.42 15.62 0.33 13.13 0.71 13.97 0.52 14.80 0.42 15.63 0.32 13.15 0.71 13.98 0.52 14.82 0.42 15.65 0.32 13.17 0.70 14.00 0.52 14.83 0.42 15.67 0.32 13.18 0.70 14.02 0.51 14.85 0.41 15.68 0.32 13.20 0.70 14.03 0.51 14.87 0.41 15.70 0.32 13.22 0.69 14.05 0.50 14.88 0.41 15.72 0.31 13.23 0.69 14.07 0.50 14.90 0.41 15.73 0.31 13.25 0.68 14.08 0.50 14.92 0.41 15.75 0.31 13.27 0.68 14.10 0.50 14.93 0.40 15.77 0.31 13.28 0.68 14.12 0.49 14.95 0.40 15.78 0.31 13.30 0.67 14.13 0.49 14.97 0.40 15.80 0.30 13.32 0.67 14.15 0.49 14.98 0.40 15.82 0.30 13.33 0.67 14.17 0.49 15.00 0.40 15.83 0.30 ' 13.35 0.66 14.18 0.49 15.02 0.39 15.85 0.30 13.37 0.66 14.20 0.49 15.03 0.39 15.87 6.30 13.38 0.66 14.22 0.48 15.05 0.39 15.88 0.29 13.40 0.65 14.23 0.48 15.07 0.39 15.90 0.29 13.42 0.65 14.25 0.48 15.08 0.39 15.92 0.29 13.43 0.64 14.27 0.48 15.10 0.39 15.93 0.29 13.45 0.64 14.28 0.48 15.12 0.38 15.95 0.29 ' 13.47 0.64 14.30 0.47 15.13 0.38 15.97 0.28 13.48 0.63 14.32 0.47 15.15 0.38 15.98 0.28 13.50 0.63 14.33 0.47 15.17 0.38 16.00 0.28 13.52 0.63 14.35 0.47 15.18 0.38 16.02 0.28 ' 13.53 0.62 14.37 0.47 15.20 0.37 16.03 0.28 13.55 0.62 14.38 0.47 15.22 0.37 16.05 0.28 13.57 0.61 14.40 0.46 15.23 0.37 16.07 0.27 13.58 0.61 14.42 0.46 15.25 0.37 16.08 0.27 13.60 0.61 14.43 0.46 15.27 0.37 16.10 0.27 13.62 0.60 14.45 0.46 15.28 0.36 16.12 0.27 13.63 0.60 14.47 0.46 15.30 0.36 16.13 0.27 13.65 0.60 14.48 0.45 15.32 0.36 16.15 0.27 13.67 0.59 14.50 0.45 15.33 0.36 16.17 0.27 13.68 0.59 14.52 0.45 15.35 0.36 16.18 0.27 13.70 0.58 14.53 0.45 15.37 0.35 16.20 0.27 ' 13.72 0.58 14.55 0.45 15.38 0.35 16.22 0.27 13.73 0.58 14.57 0.45 15.40 0.35 16.23 0.26 13.75 0.57 14.58 0.44 15.42 0.35 16.25 0.26 13.77 0.57 14.60 0.44 15.43 0.35 16.27 0.26 ' 13.78 0.57 14.62 0.44 15.45 0.35 16.28 0.26 13.80 0.56 14.63 0.44 15.47 0.34 16.30 0.26 13.82 0.56 14.65 0.44 15.48 0.34 16.32 0.26 Continues on next page... Existing Conditions Page 3 Hydrograph Discharge Table Time -- Outflow (hrs cfs) ' 16.33 0.26 16.35 0.26 16.37 0.26 16.38 0.26 16.40 0.26 16.42 0.25 ' 16.43 0.25 16.45 0.25 16.47 0.25 16.48 0.25 16.50 0.25 ...End Hydrograph Report Page 1 ' Hyd. No. 2 Proposed Conditions 1 Hydrograph type = SCS Runoff Peak discharge = 12.50 cfs Storm frequency = 100 yrs Time interval = 1 min Drainage area = 1.8 ac Curve number = 96 Basin Slope = 0 % Hydraulic length = 0 ft Tc method = USER Time of conc. (Tc) = 5 min Total precip. = 6.90 in Distribution = Type III 1 Storm duration = 24 hrs Shape factor = 484 Total Volume=43,253 cuft,0,993 acft Hydrograph Discharge Table ' Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 7,52 0.25 8.07 0,29 8.62 0.37 9.11 0.45 7.53 0.25 8.08 0.29 8.63 0.37 9.18 0.45 7.55 0.25 8.10 0.29 8.65 0.37 9.20 0.46 7.57 0.25 8.12 0.30 8.67 0.38 9.22 0.46 7.58 0.25 8.13 0.30 8.68 0.38 9.23 0.46 7.60 0.26 8.15 0.30 8.70 0.38 9.25 0.46 7.62 0.26 8.17 0.30 8.72 0.38 9.27 0.47 7.63 0.26 8.18 0.30 8.73 0.39 9.28 0.47 7.65 0.26 8.20 0.31 8.75 0.39 9.30 0.47 7.67 0.26 8.22 0.31 8.77 0.39 9.32 0.47 7.68 0.26 8.23 0.31 8.78 0.39 9.33 0.48 ' 7,70 0,26 8.25 0.31 8.80 0.40 9.35 0.48 7.72 0.26 8.27 0.32 8.82 0.40 9.37 0.48 7.73 0.27 8.28 0.32 8.83 0.40 9.38 0.48 7.75 0.27 8.30 0.32 8.85 0.40 9.40 0.49 7.77 0.27 8.32 0.32 8.87 0.41 9.42 0.49 7.78 0.27 8.33 0.33 8.88 0.41 9.43 0.49 7.80 0.27 8.35 0.33 8.90 0.41 9.45 0.49 7.82 0.27 8.37 0.33 8.92 0.41 9.47 0.50 7.83 0.27 8.38 0.33 8.93 0.42 9.48 0.50 7.85 0.27 8.40 0.34 8.95 0.42 9.50 0.50 7.87 0.27 8.42 0.34 8.97 0.42 9.52 0.51 ' 7.88 0,28 8.43 0,34 8.98 0,42 9.53 0,51 7.90 0.28 8.45 0.34 9.00 0.43 9.55 0.51 7.92 0.28 8.47 0.35 9.02 0.43 9.57 0.51 7.93 0.28 8.48 0.35 9.03 0.43 9.58 0.52 ' 7.95 0.28 8.50 0.35 9.05 0.43 9.60 0.52 7.97 0.28 8.52 0.35 9.07 0.44 9.62 0.52 7.98 0.28 8.53 0.36 9.08 0.44 9.63 0.52 8.00 0.28 8.55 0.36 9.10 0.44 9.65 0.53 8.02 0.29 8.57 0.36 9.12 0.44 9.67 0.53 8.03 0.29 8.58 0.36 9.13 0.45 9.68 0.53 8.05 0.29 8.60 0.37 9.15 0.45 9.70 0.53 Continues on next page... 71 Proposed Conditions Page 2 Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) 9.72 0.54 10.55 0.74 11.38 1.26 12.22 5.81 9.73 0.54 10.57 0.74 11.40 1.28 12.23 5.46 9.75 0.54 10.58 0.75 11.42 1.30 12.25 5.21 9.77 0.54 10.60 0.75 11.43 1.32 12.27 5.00 9.78 0.55 10.62 0.76 11.45 1.34 12.28 4.81 9.80 0.55 10.63 0.77 11.47 1.36 12.30 4.63 ' 9.82 0.55 10.65 0.77 11.48 1.38 12.32 4.44 9.83 0.55 10.67 0.78 11.50 1.40 12.33 4.25 9.85 0.56 10.68 0.78 11.52 1.42 12.35 4.06 9.87 0.56 10.70 0.79 11.53 1.46 12.37 3.88 9.88 0.56 10.72 0.79 11.55 1.51 12.38 3.69 9.90 0.56 10.73 0.80 11.57 1.59 12.40 3.50 9.92 0.57 10.75 0.80 11.58 1.70 12.42 3.31 9.93 0.57 10.77 0.81 11.60 1.83 12.43 3.12 9.95 0.57 10.78 0.81 11.62 1.98 12.45 2.94 9.97 0.57 10.80 0.82 11.63 2.15 12.47 2.75 9.98 0.58 10.82 0.82 11.65 2.32 12.48 2.56 10.00 0.58 10.83 0.83 11.67 2.51 12.50 2.37 10.02 0.58 10.85 0.83 11.68 2.69 12.52 2.19 10.03 0.59 10.87 0.84 11.10 2.88 12.53 2.02 10.05 0.59 10.88 0.84 11.72 3.06 12.55 1.86 10.07 0.59 10.90 0.85 11.73 3.25 12.57 1.74 10.08 0.60 10.92 0.85 11.75 3.44 12.58 1.64 10.10 0.60 10.93 0.86 11.77 3.62 12.60 1.56 10.12 0.61 10.95 0.86 11.78 3.81 12.62 1.51 10.13 0.61 10.97 0.87 11.80 4.00 12.63 1.47 10.15 0.61 10.98 0.88 11.82 4.19 12.65 1.44 10.17 0.62 11.00 0.88 11.83 4.37 12.67 1.42 ' 10.18 0.63 11.02 0.89 11.85 4.56 12.68 1.40 10.20 0.63 11.03 0.89 11.87 4.75 12.70 1.38 10.22 0.64 11.05 0.90 11.88 4.94 12.72 1.36 10.23 0.64 11.07 0.91 11.90 5.13 12.73 1.34 10.25 0.65 11.08 0.92 11.92 5.35 12.75 1.32 10.27 0.65 11.10 0.94 11.93 5.66 12.77 1.30 10.28 0.66 11.12 0.96 11.95 6.13 12.78 1.28 10.30 0.66 11.13 0.97 11.97 6.83 12.80 .1.26 10.32 0.67 11.15 0.99 11.98 7.75 12.82 1.24 10.33 0.67 11.17 1.01 12.00 8.87 12.83 1.22 10.35 0.68 11.18 1.03 12.02 10.09 12.85 1.20 ' 10.37 0.68 11.20 1.05 12.03 11.22 12.87 1.18 10.38 0.69 11.22 1.07 12.05 12.08 12.88 1.16 10.40 0.69 11.23 1.09 12.07 12.50 << 12.90 1.14 10.42 0.70 11.25 1.11 12.08 12.40 12.92 1.12 10.43 0.70 11.27 1.13 12.10 11.86 12.93 1.10 10.45 0.71 11.28 1.15 12.12 10.98 12.95 1.08 10.47 0.71 11.30 1.17 12.13 9.90 12.97 1.07 10.48 0.72 11.32 1.19 12.15 8.78 12.98 1.05 10.50 0.72 11.33 1.21 12.17 7.76 13.00 1.03 10.52 0.73 11.35 1.22 12.18 6.92 13.02 1.01 10.53 0.73 11.37 1.24 12.20 6.29 13.03 0.99 Continues on next page... ' Proposed Conditions Page 3 Hydrograph Discharge Table Time -- Outflow Time -- Outflow Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) (hrs cfs) (hrs cfs) ' 13.05 0.97 13.88 0.69 14.72 0.54 15.55 0.41 13.07 0.96 13.90 0.68 14.73 0.53 15.57 0.41 13.08 0.95 13.92 0.68 14.75 0.53 15.58 0.41 13.10 0.94 13.93 0.67 14.77 0.53 15.60 0.40 13.12 0.93 13.95 0.67 14.78 0.53 15.62 0.40 13.13 0.92 13.97 0.66 14.80 0.52 15.63 0.40 13,15 0.91 13,98 0.66 14,82 0,52 11,65 0,40 13.17 0.91 14.00 0.65 14.83 0.52 15.67 0.39 13.18 0.90 14.02 0.65 14.85 0.52 15.68 0.39 13.20 0.90 14.03 0.64 14.87 0.51 15.70 0.39 13.22 0.89 14.05 0.64 14.88 0.51 15.72 0.39 13.23 0.89 14.07 0.63 14.90 0.51 15.73 0.38 13.25 0.88 14.08 0.63 14.92 0.51 15.75 0.38 13.27 0.88 14.10 0.63 14.93 0.50 15.77 0.38 13.28 0.87 14.12 0.62 14.95 0.50 15.78 0.38 13.30 0.87 14.13 0.62 14.97 0.50 15.80 0.38 13.32 0.86 14.15 0.62 14.98 0.50 15.82 0.37 13.33 0,86 14,17 0,62 15.00 0.49 15,83 0,37 13.35 0.85 14.18 0.61 15.02 0.49 15.85 0.37 13.37 0.85 14.20 0.61 15.03 0.49 15.87 0.37 13.38 0.84 14.22 0.61 15.05 0.49 15.88 0.36 13.40 0.84 14.23 0.61 15.07 0.48 15.90 0.36 13.42 0.83 14.25 0.60 15.08 0.48 15.92 0.36 13.43 0.83 14.27 0.60 15.10 0.48 15.93 0.36 13.45 0.82 14.28 0.60 15.12 0.48 15.95 0.35 13.47 0.82 14.30 0.60 15.13 0.47 15.97 0.35 13.48 0.81 14.32 0.59 15.15 0.47 15.98 0.35 13.50 0.81 14.33 0.59 15.17 0.47 16.00 0.35 ' 13.52 0.80 14.35 0.59 15.18 0.47 16.02 0.34 13.53 0.80 14.37 0.59 15.20 0.46 16.03 0.34 13.55 0.79 14.38 0.58 15.22 0.46 16.05 0.34 13.57 0.79 14.40 0.58 15.23 0.46 16.07 0.34 13.58 0.78 14.42 0.58 15.25 0.46 16.08 0.33 13.60 0.78 14.43 0.58 15.27 0.45 16.10 0.33 13.62 0.77 14.45 0.57 15.28 0.45 16.12 0.33 13.63 0.77 14.47 0.57 15.30 0.45 16.13 0.33 13.65 0.76 14.48 0.57 15.32 0.45 16.15 0.33 13.67 0.76 14.50 0.57 15.33 0.44 16.17 0.33 13.68 0.75 14.52 0.56 15.35 0.44 16.18 0.33 13,70 0.75 14,53 0.56 15,37 0,44 16,20 0.33 13.72 0.74 14.55 0.56 15.38 0.44 16.22 0.33 13.73 0.73 14.57 0.56 15.40 0.43 16.23 0.32 13.75 0.73 14.58 0.55 15.42 0.43 16.25 0.32 13.77 0.72 14.60 0.55 15.43 0.43 16.27 0.32 13.78 0.72 14.62 . 0.55 15.45 0.43 16.28 0.32 13.80 0.71 14.63 0.55 15.47 0.42 16.30 0.32 13.82 0.71 14.65 0.54 15.48 0.42 16.32 0.32 13.83 0.70 14.67 0.54 15.50 0.42 16.33 0.32 13.85 0.70 14.68 0.54 15.52 0.42 16.35 0.32 13.87 0.69 14.70 0.54 15.53 0.41 16.37 0.32 Continues on next page... 73 Proposed Conditions Page 4 Hydrograph Discharge Table Time -- Outflow Time -- Outflow (hrs cfs) (hrs cfs) ' 16.38 0.31 17.22 0.26 16.40 0.31 17.23 0.26 16.42 0.31 17.25 0.26 16.43 0.31 17.27 0.26 16.45 0.31 17.28 0.26 16.47 0.31 17.30 0.26 ' 16.48 0.31 17.32 0.25 16.50 0.31 17.33 0.25 16.52 0.31 17.35 0.25 16.53 0.30 17.37 0.25 16.55 0.30 17.38 0.25 16.57 0.30 16.58 0.30 16.60 0.30 ...End 16.62 0.30 16.63 0.30 16.65 0.30 16.67 0.30 16.68 0.30 16.70 0.29 16.72 0.29 ' 16.73 0.29 16.75 0.29 16.77 0.29 16.78 0.29 16.80 0.29 16.82 0.29 16.83 0.29 16.85 0.28 16.87 0.28 16.88 0.28 16.90 0.28 16.92 0.28 16.93 0.28 16.95 0.28 16.97 0.28 16.98 0.28 17.00 0.27 17.02 0.27 17.03 0.27 17.05 0.27 17.07 0.27 17.08 0.27 ' 17.10 0.27 17.12 0.27 17.13 0.27 17.15 0.27 17.17 0.26 17.18 0.26 17.20 0.26 7� Hydrograph Report Page 1 Hyd. No. 3 Ellington Road Hydrograph type = Reservoir Peak discharge = 2.45 cfs Storm frequency = 100 yrs Time interval = 1 min Inflow hyd. No. = 2 Reservoir name = Ellington Road Max. Elevation = 72.18 ft Max. Storage = 10,550 cuft Storage Indication method used. Total Volume=43,245 cuft,0.993 acft Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 7.55 0.25 71.19 0.25 ---- ----- ----- ----- ----- 0.25 7.57 0.25 71.19 0.25 ----- ----- ----- --_- ---- 0.25 7.58 0.25 71.19 0.25 0.25 7.60 0.26 71.19 0.25 ----- ----- ----- ----- ----- 0.25 7.62 0.26 71.19 0.25 ----- ----- ----- ----- ----- 0.25 7.63 0.26 71.19 0.26 ----- ----- ----- ----- ---- 0.26 7.65 0.26 71.19 0.26 0.26 7.67 0.26 71.19 0.26 ----- ----- ----- ----- ----- 0.26 7. 0.26 71.19 0.26 0.26 7.70 70 0.26 71.19 0.26 - . 0.26 ----- _--- --_- ----- --- 7.72 0.26 71.19 0.26 0.26 7.73 0.27 71.19 0.26 ----- ----- ----- ----- ----- 0.26 7.75 0.27 71.19 0.26 ----- ----- ----- ----- ----- 0.26 7.77 0.27 71.19 0.27 ----- ----- ----- ----- ----- 0.27 7.78 0.27 71.19 0.27 ----- ----- ----- ----- ----- 0.27 7.80 0.27 71.19 0.27 ----- ----- ----- ---- ----- 0.27 7.82 0.27 71.19 0.27 0.27 ----- ----- ----- ----- ----- 7.83 0.27 71.19 0.27 0.27 7.85 0.27 71.19 0.27 ----- ----- ----- ----- ----- 0.27 7,87 0.27 71,19 0,27 ----- ----- ----- ----- ----- 0.27 7.88 0.28 71.19 0.27 0.27 _--- ----- --_- --_- _--- 7.90 0.28 71.19 0.27 0.27 7.92 0.28 71.19 0.28 ----- ----- ----- ----- ----- 0.28 7.93 0.28 71.19 0.28 ----- ----- ----- ----- ----- 0.28 7.95 0.28 71.19 0.28 ----- 0.28 ----- ----- ----- ----- 7.97 0.28 71.19 0.28 ----- 0.28 7.98 0.28 71.19 0.28 ----- ----- ----- ----- ----- 0.28 8.00 0.28 71.19 0.28 0.28 ----- ----- ----- ----- ----- 8.02 0.29 71.19 0.28 0.28 8.03 0.29 71.19 0.28 ----- ----- ----- ----- ----- 0.28 8.05 0.29 71.19 0.29 ----- ----- ----- ----- ----- 0.29 8.07 0.29 71.19 0.29 0.29 ----- ----- ----- ----- ----- 8.08 0.29 71.19 0.29 0.29 8.10 0.29 71.19 0.29 ----- ----- ----- ----- ----- 0.29 8.12 0.30 71.19 0.29 0.29 ----- ----- ----- ----- ----- 8.13 0.30 71.19 0.29 0.29 8.15 0.30 71.19 0.30 ----- ----- ----- ----- ----- 0.30 Continues on next page... ?57 Ellington Road Page 2 Hydrograph Discharge Table Time Inflow Elevation Culv.A Culv. B Culv.C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 8.17 0.30 71.19 0.30 ----- ----- ----- ----- --- 0.30 8.18 0.30 71.19 0.30 ----- ----- ----- ---- -- 0.30 8.20 0.31 71.19 0.30 ----- ----- ----- ----- --- 0.30 8.22 0.31 71.19 0.3 ^-- 0.3 8.23 0.31 71.19 0.311 ---- ----- ----- ----- 0.311 8.25 0.31 71.19 0.31 ----- ----- ----- ----- ---- 0.31 8.27 0.32 71.19 0.31 ----- ----- ----- ----- --- 0.31 8.28 0.32 71.19 0.31 ----- ----- ----- ----- --- 0.31 8.30 0.32 71.19 0.32 ----- ----- ----- ----- --- 0.32 8.32 0.32 71.19 0.32 ----- ----- ----- ----- --- 0.32 8.35 0.33 71.19 0.32 =____ ----- ----- ----- 0.32 8.35 0.33 71.20 0.32 0.32 8.37 0.33 71.20 0.33 0.33 8.38 0.33 71.20 0.33 ----- ----- ----- ---- --- 0.33 8.40 0.34 71.20 0.33 __=__ _____ _____ _____ ___ 0.33 8.42 0.34 71.20 0.33 0.33 8.43 0.34 71.20 0.34 ----- ----- ----- ----- ---- 0.34 8.45 0.34 71.20 0.34 ----- ----- ----- ----- --- 0.34 8.47 0.35 71.20 0.34 ----- ----- ----- ----- ---- 0.34 8.48 0.35 71.20 0.34 ----- ----- ----- ----- ---- 0.34 8.50 0.35 71.20 0.35 ----- ----- ----- ----- ---- 0.35 8.52 0.36 71.20 0.35 ----- ----- = _-- ----- 0.35 8.53 0.36 71.20 0.35 0.35 8.55 0.36 71.20 0.35 0.35 8.57 0.36 71.20 0.36 ----- ---- ----- ----- ---- 0.36 8.60 0.37 71.20 0.36 =____ __=__ _____ _____ ___ 0.36 8.60 0.37 71.20 0.36 0.36 8.62 0.37 71.20 0.36 ----- ----- ----- ----- --- 0.36 8.63 0.37 71.20 0.37 ----- ----- ----- ----- ---- 0.37 8.65 0.37 71.20 0.37 ----- ----- ----- ----- ---- 0.37 8.67 0.38 71.20 0.37 ----- ----- ----- ----- ---- 0.37 8.68 0.38 71.20 0.37 ----- ----- ----- ----- ---- 0.37 8.7 0.38 71.20 0.38 ---- 0.38 8.72 0.38 71.20 0.38 0.38 ----- ---- ---- ----- 8.73 0.39 71.20 0.38 0.38 8.75 0.39 71.20 0.38 ----- ----- ----- ----- ---- 0.38 8.77 0.39 71.20 0.39 ----- ----- ----- ----- ---- 0.39 8.78 0.39 71.20 0.39 ----- ----- ----- ----- ---- 0.39 8.80 0.40 71.20 0.39 ----- ----- ----- ----- ----- 0.39 8.82 0.40 71.20 0.39 ----- ----- ----- ----- ---- 0.39 8.83 0.40 71.20 0.40 _____ _____ _____ _____ -___ 0.40 8.85 0.40 71.20 0.40 0.40 8.87 0.41 71.20 0.40 ----- ----- ----- ----- ---- 0.40 8.88 0.41 71.20 0.40 ----- ----- ----- ----- ---- 0.40 8.90 0.41 71.20 0.41 ---__ ____ _____ _____ ____ 0.41 8.92 0.41 71.20 0.41 --- 0.41 8.93 0.42 71.20 0.41 ----- ----- ----- ----- ---- 0.41 8.95 0.42 71.20 0.41 ----- ----- ----- ----- ---- 0.41 8.97 0.42 71.21 0.42 ----- ----- ----- ----- ---- 0.42 8.98 0.42 71.21 0.42 ----- ----- ----- ----- ---- 0.42 Continues on next page... Ellington Road Page 3 Hydrograph Discharge Table Time Inflow Elevation Culv.A Culv. B Culv. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) I 9.00 0.43 71.21 0.42 ----- ---- ^�- ----- -_-- 0.42 9.02 0.43 71.21 0.42 0.42 9.03 0.43 71.21 0.43 ----- ----- ---- ----- ----- 0.43 9.05 0.43 71.21 0.43 ----- ----- ---- ----- ----- 0.43 9.07 0.44 71.21 0.43 0.43 ----- ----- ----- ----- ----- 9.08 0.44 71.21 0.43 0.43 9.10 0.44 71.21 0.44 ----- ----- ---- ----- ----- 0.44 9.12 0.44 71.21 0.44 0.44 ----- ----- ----- ----- _--- 9.13 0.45 71.21 0.44 0.44 9.15 0.45 71.21 0.44 ----- ----- ----- ----- ----- 0.44 9.17 0.45 71.21 0.45 ----- ----- ----- ----- ----- 0.45 9.18 0.45 71.21 0.45 0.45 ----- ----- ----- _--- ----- 9.20 0.46 71.21 0.45 0.45 9.22 0.46 71.21 0.45 ----- ----- ---- ----- ----- 0.45 9.23 0.46 71.21 0.46 ---- ----- ---- ----- ----- 0.46 9.25 0.46 71.21 0.46 0.46 --_- --_- ----- ----- ----- 9.27 0.47 71.21 0.46 0.46 9.28 0.47 71.21 0.46 ----- ----- ----- ----- ----- 0.46 9.30 0.47 71.21 0.47 0.47 ----- ----- ---_ ----- ----- 9.32 0.47 71.21 0.47 0.47 9.33 0.48 71.21 0.47 ----- ----- ----- ----- ----- 0.47 9.35 0.48 71.21 0.47 ----- ----- ----- ----- ----- 0.47 9.37 0.48 71.21 0.48 � 0.48 ----- ----- _--- ----- ----- 9.38 0.48 71.21 0.48 0.48 9.40 0.49 71.21 0.48 ----- ----- ----- ----- ----- 0.48 9.42 0.49 71.21 0.48 0.4 ----- ----- ----- -_-- ----- 9.43 0.49 71.21 0.49 0.499 9.45 0.49 71.21 0.49 0.49 9.47 0.50 71.21 0.49 ----- ----- ----- ----- ----- 0.49 9.48 0.50 71.21 0.49 0.49 ----- ----- ----- ----- ----- 9.50 0.50 71.21 0.50 0.50 9.52 0.51 71.21 0.50 ----- ----- ----- ----- ----- 0.50 9.53 0.51 71.21 0.50 ----- ---- ----- ----- ----- 0.50 9.55 0.51 71.21 0.51 _____ _____ =_-_ _____ _____ 0.51 9.57 0.51 71.22 0.51 0.51 9.58 0.52 71.22 0.51 ----- ----- ----- ----- ----- 0.51 9.60 0.52 71.22 0.51 ----- ----- ----- ----- ----- 0.51 9.62 0.52 71.22 0.52 0.52 ----- ----- --_- ----- ----- 9.63 0.52 71.22 0.52 0.52 9.65 0.53 71.22 0.52 ----- ----- ----- ----- ----- 0.52 9.67 0.53 71.22 0.52 0.52 ----- ----- -_-- --_- ----- 9.68 0.53 71.22 0.53 0.53 9.70 0.53 71.22 0.53 ----- ----- ----- ----- ----- 0.53 9.72 0.54 71.22 0.53 ----- ----- ----- ----- ----- 0.53 9.73 0.54 71.22 0.53 0.53 ----- ---_ ----- ----- --_- 9.75 0.54 71.22 0.54 0.54 9.77 0.54 71.22 0.54 ----- ----- ----- ----- ----- 0.54 9. 0.55 71.22 0.54 0.54 9.80 80 0.55 71.22 0.54 0.54 ----- ----- ---- ----- ----- 9.82 0.55 71.22 0.55 0.55 Continues on next page... -77 Ellington Road Page 4 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 9.83 0.55 71.22 0.55 -�__ 0.55 ----- ----- ----- ----- 9.85 0.56 71.22 0.55 0.55 9.87 0.56 71.22 0.55 ----- ----- ----- ----- ----- 0.55 9.88 0.56 71.22 0.56 ----- ----- ----- ---- ----- 0.56 9.90 0.56 71.22 0.56 ---M �--- 0.56 ----- ----- _-_ 9.92 0.57 71.22 0.56 0.56 9.93 0.57 71.22 0.56 ----- ----- ----- ----- ---- 0.56 9.95 0.57 71.22 0.57 0.57 ----- ----- ----- ----- _--- 9.97 0.57 71.22 0.57 0.57 9.98 0.58 71.22 0.57 ----- ----- ----- ----- ----- 0.57 10.00 0.58 71.22 0.57 ----- ----- ----- ----- ----- 0.57 10.02 0.58 71.22 0.58 0.58 ----- ----- ---_ ----- ----- 10.03 0.59 71.22 0.58 0.58 10.05 0.59 71.22 0.58 ----- ----- ----- ----- ----- 0.58 10.08 0.60 71.22 0.59 ----- ----- ----- ---- ----- 0.59 10.08 0.60 71.22 0.59 0.59 10.10 0.60 71.22 0.59 0.59 10.12 0.61 71.22 0.60 ----- ----- ----- ----- ----- 0.60 10.13 0.61 71.23 0.60 ___=_ _____ _____ _____ _____ 0.60 10.15 0.61 71.23 0.61 0.61 10.17 0.62 71.23 0.61 ---- ----- ---- ----- ----- 0.61 10.18 0.63 71.23 0.62 ----- ----- ----- ----- ----- 0.62 10.20 0.63 71.23 0.62 0.62 ----- ----- ----- ----- ----- 10.22 0.64 71.23 0.63 0.63 10.23 0.64 71.23 0.63 ----- ----- ----- ----- ---- 0.63 10.25 0.65 71.23 0.64 0.64 10.27 0.65 71.23 0.64 0.64 ----- ----- ----- ----- ----- 10.28 0.66 71.23 0.65 0.65 10.30 0.66 71.23 0.65 ----- ----- ---- ----- ----- 0.65 ' 10.32 0.67 71.23 0.66 ----- 0.66 ----- ----- ----- ----- 10.33 0.67 71.23 0.66 0.66 10.35 0.68 71.23 0.67 ----- ----- ----- ----- ----- 0.67 10.37 0.68 71.23 0.67 ----- ----- ----- ----- ----- 0.67 10.38 0.69 71.23 0.68 0.68 ----- ----- ----- -_-- ----- I 10.40 0.69 71.23 0.68 0.68 10.42 0.70 71.23 0.69 ----- ---- ----- ----- ----- 0.69 10.43 0.70 71.24 0.69 ----- ----- ----- ----- ----- 0.69 10.45 0.71 71.24 0.70 ---_ 0.70 ----- ----- --_- ----- 10.47 0.71 71.24 0.70 0.70 10.48 0.72 71.24 0.71 ----- ----- ----- ----- ----- 0.71 10.50 0.72 71.24 0.71 0.71 ----- --_- --_- ----- ----- 10.52 0.73 71.24 0.72 0.72 10.53 0.73 71.24 0.72 ----- ----- ----- ----- ----- 0.72 10.55 0.74 71.24 0.73 ----- ----- ----- ----- ----- 0.73 10.57 0.74 71.24 0.73 0.73 ----- ----- ---_- ----- ----- 10.58 0.75 71.24 0.74 0.74 10.60 0.75 71.24 0.74 ----- ----- ----- ----- ----- 0.74 10.62 0.7 71.24 0.75 0.75 10.63 0.77 ----- -- 71.24 0.75 0.75 10.65 0.77 71.24 0.76 ----- ----- ----- ----- -_-- 0.76 Continues on next page... ' Ellington Road Page 5 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy.C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 10.67 0.78 71.24 0.77 0.77 ----- ----- ----- ----- ----- 10.68 0.78 71.24 0.77 0.77 10.70 0.79 71.24 0.78 ----- ---- ----- ----- ----- 0.78 10.7 0. 71.24 0.78 0.78 10.73 0.8080 71.25 0.78 0.78 ----- ---- N--- ----- ----- 10.75 0.80 71.25 0.78 0.78 10.77 0.81 71.25 0.79 ----- ----- ----- ---- ---- 0.79 10.78 0.81 71.25 0.79 0.79 ----- ----- ----- ----- ----- 10.80 0.82 71.25 0.80 0.80 10.82 0.82 71.25 0.80 ----- ----- ----- ----- ----- 0.80 10.83 0.83 71.25 0.81 ----- ----- ---- ----- ----- 0.81 10.85 0.83 71.25 0.81 0.81 ----- ----- ----- ----- ----- 10.87 0.84 71.25 0.81 0.81 10.88 0.84 71.26 0.82 ----- ----- ----- ----- ----- 0.82 10.90 0.85 71.26 0.82 ----- ----- ----- ----- ----- 0.82 10.92 0.85 71.26 0.83 0.83 ----- ----- ----- ----- ----- 10.93 0.86 71.26 0.83 0.83 10.95 0.86 71.26 0.84 ----- ----- ----- ----- ----- 0.84 10.97 0.87 71.26 0.85 0.85 ----- ----- ----- ----- ----- 10.98 0.88 71.26 0.85 0.85 11.00 0.88 71.27 0.86 ----- ----- ---- ----- ----- 0.86 11.02 0.89 71.27 0.86 ----- ----- ----- ----- ----- 0.86 11.03 0.89 71.27 0.87 - _-- � 0.87 --- ----- ----- ----- 11.05 0.90 71.27 0.87 0.87 11.07 0.91 71.27 0.88 ----- ----- ----- ---- ----- 0.88 11. 0.92 71.28 0.89 0.89 11.10 10 0.94 71.28 0.89 0.89 ----- ----- - 11.12 0.96 71.28 0.90 ---- ---- ----- 0.90 11.13 0.97 71.28 0.92 ----- ----- ----- ---- ----- 0.92 11.15 . 71.28 0.93 0.93 1 11.17 1.0101 ----- ----- ----- ----- -----71.29 0.94 0.94 11.18 1.03 71.29 0.96 ----- ----- ----- ----- ----- 0.96 11.20 1.05 71.30 0.97 ----- ----- ----- ----- ----- 0.97 11.22 1.07 71.30 0.99 0.99 ----- ----- ----- ----- ----- 11.23 1.09 71.30 1.01 1.01 11.25 1.11 71.31 1.02 ----- ----- ----- ----- ----- 1.02 11.28 1.13 71.31 1.04 ----- --�_- ----- _____ ____- 1.04 11.28 1.15 71.32 1.06 1.06 11.30 1.17 71.32 1.08 1.08 11.32 1.19 71.33 1.10 ----- ----- ----- ----- ----- 1.10 11.33 1.21 71.33 1.11 _____ _____ _____ _____ _____ 1.11 11.35 1.22 71.34 1.13 1.13 11.37 1.24 71.34 1.14 ----- ----- ----- ----- ----- 1.14 11.38 1.26 71.35 1.16 ----- ----- ----- ----- ----- 1.16 11.40 1.28 71.36 1.18 1.18 ----- ---- ----- ----- ----- 11.42 1.30 71.36 1.19 1.19 11.43 1.32 71.37 1.21 ----- ----- ----- ----- ----- 1.21 11.45 1.34 71.38 1.23 ----- ___-- ----- ----- ----- 1.23 11.47 1.36 71.38 1.25 1.25 11.48 1.38 71.39 1.27 1.27 Continues on next page... Ellington Road Page 6 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 11.50 1.40 71.39 1.28 1.28 ----- ----- ----- ----- ----- 11.52 1.42 71.40 1.30 1.30 11.53 1.46 71.41 1.32 ----- ----- ----- ----- ----- 1.32 11.55 1.51 71.41 1.35 ----- ----- ----- ----- ----- 1.35 11.57 1.59 71.42 1.37 1.37 ----- ----- ----- ----- ----- 11.58 1.70 71.44 1.41 1.41 11.60 1.83 71.46 1.45 ----- ----- ----- ----- ----- 1.45 11.62 1. 71. 1.51 1.51 11.63 2.15 15 71.51 51 1.58 ----- ----- ----- ----- ----- 1.58 11.65 2.32 71.54 1.65 ----- ----- ----- ----- ----- 1.65 11.67 2.51 71.58 1.73 ----- ----- ----- ----- ----- 1.73 11.68 2.69 71.63 1.82 1.82 ----- ----- ----- ----- ----- 11.70 2.88 71.68 1.92 1.92 11.72 3.06 71.73 2.02 ----- ----- ----- ----- ----- 2.02 11.73 3. 71. 2.12 2.12 11.75 3.44 44 71.85 85 2.21 2.21 ----- ----- ----- ----- ----- 11.77 3.62 71.92 2.27 2.27 11.78 3.81 72.00 2.44 ----- ----- ----- ----- ----- 2.44 11.80 4.00 72.00 2.45 2.45 ----- ----- ----- ----- ----- 11.82 4.19 72.00 2.45 2.45 11.83 4.37 72.01 2.45 ----- ----- ----- ----- ----- 2.45 11.85 4.56 72.01 2.45 ----- ----- ---- ----- ----- 2.45 11.87 4.75 72.01 2.45 ----- ---- ---- ----- ----- 2.45 11.88 4.94 72.01 2.45 2.45 11.90 5.13 72.02 2.45 ----- ---- ----- ----- ----- 2.45 11.92 5. 72.02 2.45 2.45 11.93 5.66 66 72.02 2.45 2.45 ----- ----- ----- ----- ---- 11.95 6.13 72.03 2.45 2.45 11.97 6.83 72.03 2.45 ----- ----- ----- ----- ----- 2.45 11.98 7.75 72.04 2.45 2.45 ----- ----- ----- ----- ----- 12.00 8.87 72.04 2.45 2.45 12.02 10.09 72.05 2.45 ----- ----- ----- ----- ----- 2.45 12.03 11.22 72.06 2.45 ----- ----- ----- ---- ----- 2.45 12.05 12.08 72.07 2.45 2.45 ----- ----- ----- ---- ----- 12.07 12.50 << 72.08 2.45 2.45 12.08 12.40 72.09 2.45 ----- ----- ----- ----- ----- 2.45 12.12 11.98 72.11 2.45 =____ _--- =____ _---- ----- 2.45 12.12 10.98 72.11 2.45 2.45 12.13 9.90 72.12 2.45 2.45 12.15 8.78 72.13 2.45 ----- ----- ----- ----- ----- 2.45 12.17 7.76 72.14 2.45 2.45 ---- ---- ----- ----- ----- 12.18 6.92 72.14 2.45 2.45 12.20 6.29 72.15 2.45 ----- ----- ----- ----- ----- 2.45 12.22 5.81 72.15 2.45 ----- ----- ----- ---- ----- 2.45 12.23 5.46 72.16 2.45 ----- ----- ----- ----- ----- 2.45 12.25 5.21 72.16 2.45 ----- ----- ----- ----- ----- 2.45 12.27 5.00 72.16 2.45 ----- ----- ----- ---- ----- 2.45 12. 4.81 72.17 2.45 2.45 12.30 30 4.63 72.17 2.45 2.45 ----- ----- ----- ----- ----- 12.32 4.44 72.17 2.45 2.45 Continues on next page... Ellington Road Page 9 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 14.00 0.65 72.03 2.45 _____ _____ -___ ____ _____ 2.45 14.02 0.65 72.03 2.45 2.45 14.03 0.64 72.03 2.45 ----- ----- ----- ---- ----- 2.45 14.05 0.64 72.03 2.45 ----- ----- ---- ----- ----- 2.45 14.07 0.63 72.03 2.45 ---- 2.45 ----- ----- ----- ----- 14.08 0.63 72.02 2.45 2.45 14.10 0.63 72.02 2.45 ----- ----- ----- ----- ----- 2.45 14.12 0.62 72.02 2.45 2.45 ----- ----- ----- ----- ---- 14.13 0.62 72.02 2.45 2.45 14.15 0.62 72.02 2.45 ----- ----- ----- ----- ----- 2.45 14.17 0.62 72.01 2.45 ----- ----- ----- ----- ----- 2.45 14.18 0.61 72.01 2.45 ----- ----- ----- ----- ----- 2.45 14.20 0.61 72.01 2.45 ----- ----- ---- ----- ----- 2.45 14.22 0.61 72.01 2.45 ----- ----- ---- ----- ----- 2.45 14.2 0.61 72.01 2.45 --- 2.45 14.25 ----- ----0.60 72.00 2.45 2.45 ----- ----- 14.27 0.60 72.00 2.45 ----- ----- ----- 2.45 14.28 0.60 71.95 2.33 ----- ----- ----- ----- ----- 2.33 14.3 0. 71. 2.21 2.21 14.32 0.5959 71.77 77 2.09 ----- ----- ----- ----- ----- 2.09 14.33 0.59 71.70 1.96 ----- ----- ---- ----- ----- 1.96 14.35 0.59 71.63 1.82 ----- ----- ----- ----- ----- 1.82 14.37 0.59 71.56 1.69 ---- 1.69 ----- ----- ----- ----- 14.38 0.58 71.51 1.57 1.57 ,14.40 0.58 71.46 1.45 ----- ----- ----- ----- ----- 1.45 14.42 0.58 71.41 1.23 ----- ----- __ -- ====_ ---- 1.34 23 14.43 0.58 71.37 1.23 1.23 14.45 0.57 71.34 1.13 1.13 14.47 0.57 71.31 1.04 ----- ----- ----- ----- ----- 1.04 14.48 0.57 71.29 0.95 ----- ----- ----- ----- ----- 0.95 14.50 0.57 71.27 0.88 ----- ----- ----- ----- ----- 0.88 14.52 0.56 71.26 0.82 ----- ----- ----- ----- ----- 0.82 14.53 0.56 71.24 0.77 ----- ----- ---- ---- ----- 0.77 14.55 0.56 71.23 0.68 _ ___ _____ __�_ _____ _____ 0.68 14.57 0.56 71.23 0.63 0.63 14.58 0.55 71.23 0.60 ----- ----- ----- ----- ----- 0.60 14.60 0.55 71.22 0.58 ----- ----- ----- ----- ----- 0.58 14.62 0.55 71.22 0.57 ---- 0.57 ----- ----- ----- ----- 14.63 0.55 71.22 0.56 0.56 14.65 0.54 71.22 0.56 ----- ----- ----- ----- ----- 0.56 14.68 0.54 71.22 0.55 _____ _____ ___- ----- �=-- 0.55 14.68 0.54 71.22 0.55 0.55 14.70 0.54 71.22 0.54 ----- ----- ---- 0.54 14.72 0.54 71.22 0.54 ----- ----- ----- ----- ----- 0.54 14.73 0.53 71.22 0.54 __=__ _____ _____ _____ _____ 0.54 14.75 0.53 71.22 0.54 0.54 14.77 0.53 71.22 0.53 ----- ----- ----- ----- ----- 0.53 14. 0.53 71.22 0.53 ---- 0.53 14.80 80 0.52 71.22 0.53 0.53 ----- ----- ----- ----- 14.82 0.52 71.22 0.53 0.53 Continues on next page... Ellington Road Page 10 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 14.83 0.52 71.22 0.52 0.52 ----- ----- ----- ----- _--- 14.85 0.52 71.22 0.52 0.52 14.87 0.51 71.22 0.52 ---- ----- ---- ----- ----- 0.52 14. 0.51 71.22 0.52 0.52 14.90 90 0.51 71.22 0.51 0.51 ----- ----- ----- ----- ---- 14.92 0.51 71.22 0.51 0.51 14.93 0.50 71.22 0.51 ---- ----- ----- ---- ----- 0.51 14.95 0.50 71.21 0.51 _____ _____ __`_ _____ _____ 0.51 14.97 0.50 71.21 0.50 0.50 14.98 0.50 71.21 0.50 ----- ----- ----- ----- ----- 0.50 15.00 0.49 71.21 0.50 ----- ----- ----- ----- ----- 0.50 15.02 0.49 71.21 0.50 _____ _____ _____ _____ ____ 0.50 15.03 0.49 71.21 0.49 0.49 15.05 0.49 71.21 0.49 ----- ----- ----- ----- ----- 0.49 15.0 0.48 71.21 0.49 0.49 15.08 0.48 71.21 0.49 0.49 ----- ----- --Y- ----- ----- 15.10 0.48 71.21 0.48 0.48 15.12 0.48 71.21 0.48 ----- ----- ----- ----- ----- 0.48 15.13 0.47 71.21 0.48 ----- ----- ----- ----- ----- 0.48 (� 15.15 0.47 71.21 0.48 ----- ----- ----- ----- ----- 0.48 15.17 0.47 71.21 0.47 ----- ----- ----- ----- ----- 0.47 15.18 0.47 71.21 0.47 ----- ---- ----- ----- ---- 0.47 �. 15.20 0.46 71.21 0.47 -_-- 15.22 0.46 71.21 0.47 ----- ----- ----- ----- 0.47 15.23 0.46 71.21 0.46 ----- ----- ----- ----- ----- 0.46 15.25 0.46 71.21 0.46 ----- ----- ---- ----- ---- 0.46 15.27 0.45 71.21 0.46 -�-- 0.46 ----- ----- ----- ----- 15.28 0.45 71.21 0.46 0.46 15.30 0.45 71.21 0.45 ----- ----- ----- ----- ----- 0.45 15.32 0.45 71.21 0.45 0.45 ----- ----- ----- ----- ----- 15.33 0.44 71.21 0.45 0.45 15.35 0.44 71.21 0.45 ----- ----- ---- ----- ----- 0.45 15.37 0.44 71.21 0.44 ---- ----- ----- ----- ----- 0.44 15.38 0.44 71.21 0.44 __=__ ___- __ __ _____ _ 0.44 15.40 0.43 71.21 0.44 0.44 15.42 0.43 71.21 0.44 ----- ----- ----- ----- ----- 0.44 15.43 0.43 71.21 0.43 ----- ----- ----- ----- ----- 0.43 15.45 0.43 71.21 0.43 --- _____ -- _____ _____ 0.43 15.47 0.42 71.21 0.43 ---- --- 0.43 15.48 0.42 71.21 0.43 ----- ----- ----- ----- ----- 0.43 15.50 0.42 71.21 0.42 0.42 ----- ----- ----- ----- ----- 15.52 0.42 71.21 0.42 0.42 15.53 0.41 71.21 0.42 ----- ----- ----- ---- ----- 0.42 15.55 0.41 71.21 0.42 ----- ----- ----- ----- ----- 0.42 15.57 0.41 71.20 0.41 0.41 ----- ----- ----- ----- ----- 15.58 0.41 71.20 0.41 0.41 15.60 0.40 71.20 0.41 ----- ----- ----- ----- ----- 0.41 15.62 0.40 71.20 0.41 ----- ----- ----- ----- ----- 0.41 15.63 0.40 71.20 0.40 _____ _____ _____ _____ ____ 0.40 15.65 0.40 71.20 0.40 0.40 Continues on next page... Ellington Road Page 11 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 15.67 0.39 71.20 0.40 ____ _____ _____ _____ -___ 0.40 15.68 0.39 71.20 0.40 0.40 15.70 0.39 71.20 0.39 ----- ----- ----- ---- ----- 0.39 15.72 0.3 71.20 0.39 - ---- 0.39 15.73 0.388 ---- ----- ----- ---- 71.20 0.39 0.39 15.75 0.38 71.20 0.39 ----- ----- ----- --- 0.39 15.77 0.38 71.20 0.38 ----- ----- ----- ----- ----- 0.38 15.78 0.38 71.20 0.38 0.38 ----- ----- ----- ----- ---- 15.80 0.38 71.20 0.38 0.38 15.82 0.37 71.20 0.38 ----- ----- ----- ----- ----- 0.38 ' 15.83 0.37 71.20 0.38 0.38 15.85 0.37 71.20 0.37 0.37 ----- ----- ----- ---- ----- 15.87 0.37 71.20 0.37 0.37 15.88 0.36 71.20 0.37 ----- ----- ----- ----- ----- 0.37 15.92 0.36 71.20 0.36 ----- __ -- ----- =____ =___= 0.36 15.92 0.36 71.20 0.36 0.36 15.93 0.36 71.20 0.36 0.36 15.95 0.35 71.20 0.36 ----- ----- ----- ----- ----- 0.36 15.97 0.35 71.20 0.36 ----- ----- ---- ----- ----- 0.36 15.98 0.35 71.20 0:35 ----- ----- ----- ----- ----- 0.35 16.00 0.35 71.20 0.35 ----- ---- ----- ----- ----- 0.35 16.02 0.34 71.20 0.35 -�--- ----- =N== ----- ----- 0.35 16.03 0.34 71.20 0.35 0.35 16.05 0.34 71.20 0.34 0.34 16.07 0.34 71.20 0.34 ----- ----- ----- ----- ----- 0.34 16.08 0.33 71.20 0.34 ----- ----- ----- ----- ----- 0.34 16.10 0.33 71.20 0.34 ----- ----- ----- ----- ----- 0.34 16.12 0.33 71.20 0.34 ----- ----- ----- ----- ---- 0.34 16.13 0.33 71.20 0.33 ---- ---- ----- ----- ----- 0.33 16.15 0.33 71.20 0.33 ____= _____ _____ _____ _ ___ 0.33 16.17 0.33 71.20 0.33 0.33 16.18 0.33 71.20 0.33 ----- ----- ----- ----- ----- 0.33 16.20 0.33 71.20 0.33 ----- ---- ----- ----- ----- 0.33 16.22 0.33 71.20 0.33 _____ _____ _____ _____ _____ 0.33 16.23 0.32 71.20 0.33 0.33 16.25 0.32 71.20 0.33 ----- ----- ----- ----- ----- 0.33 16.27 0.32 71.20 0.32 ----- ----- ----- ----- ----- 0.32 16.28 0.32 71.20 0.32 ----- ----- ---- ----- ----- 0.32 16.30 0.32 71.19 0.32 ----- ----- ---- ----- ----- 0.32 16.32 0.32 71.19 0.32 ----- ----- ----- ----- ----- 0.32 16.33 0.32 71.19 0.32 _____ ____= _____ _____ _____ 0.32 16.35 0.32 71.19 0.32 0.32 16.37 0.32 71.19 0.32 ----- ----- ----- ----- ----- 0.32 16.38 0.31 71.19 0.32 ----- ----- ----- ----- ----- 0.32 16.40 0.31 71.19 0.32 _____ _____ _____ _____ _____ 0.32 16.42 0.31 71.19 0.31 0.31 16.43 0.31 71.19 0.31 ----- ----- ----- ----- ----- 0.31 16.45 0.31 71.19 0.31 ----- ----- .----- ----- ----- 0.31 16.47 0.31 71.19 0.31 =___ ____ _____ _____ _____ 0.31 16.48 0.31 71.19 0.31 0.31 Continues on next page... Ellington Road Page 12 Hydrograph Discharge Table Time Inflow Elevation Culy.A Culy. B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 16.50 0.31 71.19 0.31 _____ -_- _N_ ____ - 0.31 16.52 0.31 71.19 0.31 0.31 16.53 0.30 71.19 0.31 ----- ----- ---- ----- -- 0.31 ' 16.55 0.30 71.19 0.31 ----- -_=_ ==-- --= 0.31 16.57 0.30 71.19 0.30 0.30 16.58 0.30 71.19 0.30 0.30 16.60 0.30 71.19 0.30 ---- ----- ---- --- ---- 0.30 16.62 0.30 71.19 0.30 ----- ----- --- --- ----- 0.30 16.63 0.30 71.19 0.30 ----- ----- ---- ---- ----- 0.30 16.65 0.30 71.19 0.30 ----- ----- ---- ---- ----- 0.30 16.67 0.30 71.19 0.30 ----- ----- ----- ---- --- 0.30 16.68 0.30 71.19 0.30 ---- ----- --N ---- �- 0.30 j 16.70 0.29 71.19 0.30 0.30 16.72 0.29 71.19 0.30 ----- ----- ----- ---- ----- 0.30 ' 16.73 0.29 71.19 0.29 --- 0.29 16.75 0.29 71.19 0.29 0.29 ----- ---- --- 16.77 0.29 71.19 0.29 0.29 16.78 0.29 71.19 0.29 ----- ----- ---- ---- ---- 0.29 16.80 0.29 71.19 0.29 --- ----- ---- -- � 0.29 16.82 0.29 71.19 0.29 0.29 16.83 0.29 71.19 0.29 ---- ----- ---- --- ----- 0.29 16.85 0.28 71.19 0.29 ----- ----- ----- -- -- 0.29 16.87 0.28 71.19 0.29 ---- --- - 0.29 ----- ----- 16.88 0.28 71.19 0.28 0.28 16.90 0.28 71.19 0.28 ----- ----- ---- --- --- 0.28 ' 16.92 0.28 71.19 0.28 ---- ---- --- -- ____ 0.28 16.93 0.28 71.19 0.28 0.28 16.95 0.28 71.19 0.28 0.28 16.97 0.28 71.19 0.28 ----- ----- --- --- ---- 0.28 16.98 0.28 71.19 0.28 ---- -- _____ 0.28 ---- ----- 17.00 0.27 71.19 0.28 0.28 17.02 0.27 71.19 0.28 ---- ----- ----- --- ---- 0.28 17.03 0.27 71.19 0.27 ----- ----- ---- ----- - 0.27 ' 17.05 0.27 71.19 0.27 ---- ---- -- ____ 0.27 ----- 17.07 0.27 71.19 0.27 0.27 17.08 0.27 71.19 0.27 ----- ----- ----- --- ---- 0.27 17.1 0.27 71.19 0.27 -N- --- - 0.27 17.12 0.27 71.19 0.27 0.27 ----- ----- 17.13 0.27 71.19 0.27 0.27 17.15 0.27 71.19 0.27 ----- ----- --- --- -- 0.27 ' 17.17 0.26 71.19 0.27 --- -- � 0.27 ----- ----- 17.18 0.26 71.19 0.27 0.27 17.20 0.26 71.19 0.26 ----- ---- ---- --- -- 0.26 17.22 0.26 71.19 0.26 ----- ----- ---- --- --- 0.26 ' 17.23 0.26 71.19 0.26 -- 0.26 ----- ----- ----- � 17.25 0.26 71.19 0.26 0.26 17.27 0.26 71.19 0.26 ----- ----- ----- --- ----- 0.26 17. 0.26 71.19 0.26 ----- ----- --� --- 0.26 17.30 30 0.26 71.19 0.26 0.26 17.32 0.25 71.19 0.26 0.26 Continues on next page... r ' Ellington Road Page 13 Hydrograph Discharge Table ' Time Inflow Elevation Culv.A Culy.B Culy. C Weir A Weir B Weir C Outflow (hrs) (cfs) (ft) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) (cfs) 17.33 0.25 71.19 0.26 _____ _____ _=___ _____ __=__ 0.26 17.35 0.25 71.19 0.25 0.25 17.37 0.25 71.19 0.25 ----- ----- ----- ----- ----- 0.25 17.38 0.25 71.19 0.25 -_-- ---- ----- 0.25 ----- ----- 17.40 0.25 71.19 0.25 0.25 17.42 0.25 71.19 0.25 ----- ----- ----- ----- ----- 0.25 End A7 Fuss&O'Neill Inc. RETENTION BASIN ' BIOFILTER DESIGN 1 87546W l0UAL0211A.WPD Comes. ��r r 1 1 6, � 1-). !S7f5 �W fA6- OF P-ONvFf 1 t 1 1 1 _ _ FrLTE� Li 4�z 1 /DC.UME. 6,e P—uNO.CiC - 1 D•8Sl��� x ?JOs000 -r' /Pr. tyt Z, / Z5 Fr 1 1 1 1 O.■■■■..N■.N17wwN11 l7d■m7NNd.�a■Nddp \7NMN.■nO■►�dd■■a tdld..�0■.N■dNd■■■■ n p 0■■p,VaudLfNdR.dAd//Yd■■►t■ddYw.Nd■■■0 ■�/AM dd��►�■■dn��NNw.�dw/■Y■/d/►7■dO■.®■d■■!/dpa■a■ ■■■" dSM'AAA■■■&�■■dRaE■aNa\dddt■NOOdpO■►tppa■■■/d O■■// SUN■L%i/a■■\'N1lHYY■■rlAfCd■d■/MAdnd►ta■wda■■nf■aa ■p// ddddppd'YNNl7ddd►7d/W'dwd■tW LMM■pN/■d ■/■n" 4SUaR�NNd►`ANNM\'NSSUAf.SUMEYVomp 'imN NL. 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Drainage Area : 6,Zi acres b . Composite Coefficient of Runoff Impervious Area c=0.90 Grass and Landscape Area acres c=4).ZO A_ �,©� acres ( D.9c > ( o.no ) + Ca v g = --------- --- ----------- —---- _ 0,-7:3 ACavq_ = 4,/5 c . Time of Concentration Type of Flow . Length Slope Velocity Time (ft . ) M ( ft . /sec . ) (min. ) iOverland Overland tc - a AA,#At, Return Period Intensity ( i ) ( years) ( in. /hr . ) 2 10 25 5. c 50 100 d . Peak Rate of Runoff Q = i ( 1-i C avol (225 = i r a . Drainage Area : 6, 17acre5 b . Composite Coefficient of Runoff : Impervious Area c=0. 90 A= Q.j`� acres Grass and Landscape Area c= A= acres I ( ) Ca v g = -- ------ ----------------- ------ _ ® i7 A C a.,g ,f8 c . Time of Concentration_ntianon Type of Flow Len th 9 Slope Velocity Time (ft . ) ( 1 ) ( ft . /sec . ) (min. ) ' Overland Overland 1 tC: _ eAl Return Period Intensity ( i ) ( years) ( in. /hr . ) 2 10 b. c 25 50 100 d . Peak Rate of Runoff 0 = i (pca VC 025 - �al ��o r-V6Ct) Cle a . Drainage Area : ���� acres b . Composite Coefficient of Runoff : Impervious Area c=0.90 A= 0.43 Grass and Landscape Area _ acres c- �,�� A= � (�� acres C a v g = -- --_ __ ------ ACa.,g c . Time of Concentratio n . Type of Flow Len .gth Slope Velocity Time (ft . ) ( % ) ( ft . /sec . ) (min. ) Overland Overland Return Period Intensity ( i ) ( years) ( in. /hr . ) 2 10 6. 2 25 50 100 d . Peak Rate of Runoff ; Q = i (ACavo) 010 = Q25 = f o�agE� GTE 40, a . Drainage Area : d,2-�acres b . Composite Coefficient of Runoff Impervious Area c=0.90 Grass and Landscape Area acres c= 6,Z;O A= 6. acres Cavg ©.9 ( pazo) ( a ) ACavq = 04 c . Time of e Concn - tr ation ' Type of Flow Leng th Slope Velocity Time ( ft . ) ( % ) ( ft . /sec . ) (min. ) Overland Overland Return Period Intensity ( i ) ( years) ( in. /hr . ) 2 10 b . c 25 50 100 d . Peak Rate of Runoff Q = i (ACavo' 010 = Q25 = r ._ -Prz cl�, 4:�� �10 > 0P415�, a . Drainage Area �477 acres b . Composite Coefficient of Runoff Impervious Area c=0.90 A= Grass and Landscape Area c= acres G. o A= d,®� acres C a v g = -- -------- c . Time of Concentration Type of Floe Length g Slope Velocit Time ( ft . ) M) (ft . /sec . ) (min. ) Overland Overland tc. Return Period Intensity ( i ) ( years) ( in. /hr . ) 2 10 6.2 25 50 100 d . Peak Rate of Runoff 0 = i (AC3Ve' 010 1 (225 1 t Fuss&O'Neill Inc. ' REFERENCES 87546\A10UAL021 IA.WPD Corres. eoa Figure 9-8 - Connecticut Soils and Hydrologic Scil Groups ACTON (SUTTON) B ENFIELD, B NELLIS B SCIG B ADRIAN D (SHALLOW) NINIGRET B SCITICO C AGAWAM B (HAVEN) OCCUM B SHAPLEIGH C/D ALLUVIAL LAND C FARMINGTON C ONDAWA (OCCUM) B (HOLLIS) (RIPPOWAM) FREDON C PALMS D STOCKBRIDGE C AMENIA B GEORGIA B PAWCATUCK D SUDSURY B AU GRES A GENESEE B PAXTON C SUNCCOK A (PIPESTONE) (HAMLIN) PAXTON, C SUNDERLAND C/D BELGRADE (SCIO) B GLOUCESTER, A (REDDISH SUBSTRATUM) (HGLYOKE) BELGRADE VARIANT B (SANDY LOAM) (PAXTON) SUTTCN B (SCIG) (HD CO.) GLOUCESTER, B PEAT AND MUCK D S'WANTON C BERLIN C (FINE SANDY LOAM) (CARLISLE) (S=:4KER) BERMUDIAN, B (SUTTON) PEAT AND MUCK, D TEEL B (SANDY LOAM) GRANBY D (SHALLOW) TERRACE ESCARPMENTS A (OCCUM) GROTON A PEATS AND MUCKS D (HINCKLEY) BERMUDIAN, B HADLEY B (CARLISLE) TERRACE ESCARPMENTS, C (SILT LOAM) HAMLIN B PEATS AND MUCKS, D (CLAY) (BOXFORD) (HADLEY) HARTFORD A (SHALLOW) (PALMS) TERRACE ESCARPMENTS, C BERNARDSTON C HARTLAND B PENWOOD A (SAND AND CLAY) BIDDEFORD D (UNADILLA) PIPESTONE A (MELROSE) (MAYBID) HAVEN B PODUNK B TERRACE ESCARPMENTS, A BIDDEFORD VARIANT D HERO B (POOTATUCK) (SAND AND GRAVEL) ' (MAYBID) (HD Co.) HINCKLEY A PODUNK VARIANT B (HINCKLEY) BIRCHWOOD C HOLLIS C/D (NH CO.) TISBL'RY B BIRDSALL D HOLYOKE C/D POOTATUCK B UNADILLA B BOWMANSVILLE C IPSWICH D POOTATUCK VARIANT B WALLINGTON C (RIPPOWAM) JAFFREY A (NL CO.) (RAYNHAM) BOXFORD C (HINCKLEY) POQUONOCK C WALLINGTON VARIANT C BRANFORD B KENDAIA C RAINBOW C (RAYNHAM) BRIMFIELD C/D LEICESTER C RAYNHAM C (FD CO.) BROADBROOK C LIMERICK C RAYPOL C WALPOLE C BROOKFIELD B LIMERICK VARIANT C RIDGEBURY C WAPPING B BUXTON (BOXFORD) C (NL CO.) RIPPOWAM C WAREHAM C CANTON B LUDLOW C ROWLAND B WAREHAM VARIANT C CARLISLE D LYONS D (POOTATUCK) (WAREHAM) (LD CO.) CHARLTON B MANCHESTER A RUMNEY C WATCHAUG B CHESHIRE B MAYBID D (RIPPOWAM) WESTBROOK D COPAKE B MELROSE C RUMNEY VARIANT C WETHERSFIELD C DEERFIELD B MENLO D (NH CO.) WHATELY D DOVER (NELLIS) B MERRIMAC, B RUMNEY VARIANT C WHITMAN D EEL (TEEL) B (FINE SANDY LOAM) (MX CO.) WILBRAHAM C ELLINGTON B (AGAWAM) SACO D WINDSOR A ELMRIDGE C MERRIMAC, A SCANTIC C WINOOSKI B ELMWOOD C (SANDY LOAM) (SCITICO) WOODBRIDGE C (ELMRIDGE) MONTAUK C SCANTIC VARIANT C WOODBRIDGE C ENFIELD B MUCK (SHALLOW) D (SCITICO) (REDDISH SUBSTRATUM) (ERODED) (PALMS) (HD CO.) (WOODBRIDGE) (HAVEN) NARRAGANSETT B SACARBORO D YALESVILLE C Source: U.S. Department of Agriculture, Soil Conservation Service, Storrs, Connecticut. 9-13 )MI Figure 9-9 - Runoff Curve Numbers (CN) HYDROLOGIC SOIL GROUP LAND USE DESCRIPTION A B C D Cultivated landi/: without conservation treatment 72 81 88 91 with conservation treatment 62 71 78 81 Pasture or range land: poor condition 68 79 86 89 good condition 39 61 7'. 80 Meadow: good condition 30 58 7: 78 Wood or Forest laid: thin stand, poor cover, no mulch 45 66 77 83 good cover/ 25 55 77 Open Spaces, lawns, parks, golf courses, cemeteries, etc. good condition:. grass cover on 75% or more of the area 19 61 7480 fair condition:. grass cover on 50% to 75% of the area 49 69 79 84 Commercial sad business areas (85% impervious) 89 92 94 95 IIndustrial districts (72% impervious). 81 88 191 93 Residential:!/ Average lot size Average % Impervious!/ 1/8 acre or less 65 77 85 90 92 1/4 acre 38 61 75 83 87 1/3 acre 30 57 72 81 86 1/2 acre 25 54 70 80 85 i acre 20 51 68 79 84 Paved parking lots, roofs, driveways, etc.s/ 98 98 98 98 Streets and roads: paved with curbs and storm several/ 98 98 98 98 gravel 76 85 89 91 dirt 72 82 87 89 For a more detailed description of agricultural land use curve numbers refer to National Engineering Handbook, Section 4, Hydrology, Chapter 9, Aug. 1972. ?/ Good cover is protected from grazing and litter and brush cover soil. Curve numbers are computed assuming the runoff from the how a and drivevv is directed towards the street with a minimum of roof water directed to lavns where additional infiltration could occur. =/ The remaining pervious areas (lawn) are considered to be in good pasture condition for these curve numbers. s/ In some water climates of the country a curve number of 95 may be used. Source: U.S. Department of Agriculture, Soil Conservation Service, Urban Hydrology for Small Watersheds, Technical Release Number 55, Washington, D.C. A 9-14 167 Values of Runoff Coefficient (C) for Rational Formula Land use Business: C Land use Downtown areas 0 70-0 95 Lawns: ` Neighborhood areas 0.50-0.IC Sandy soil, flat, 2: Sandy soil , avera;e - Residential: Sandy soil steep, 1: Single-family areas 0 Heavy soil , flat, 2: r•;�- '.2= G-0.50 .'. f Multi units, detached Heavy soil, average, -i: ,,1�_; 2� Multi units, attached 0.60-0.60 Neavy' soil , steep, ] �;_r �:0.60-0.]5 0... ,—: _ Suburban 0.25-0.40 - . Agricultural -land: Industrial: Bare s- packed oil Light areas 0.50-0.80 Smooth Neavy areas G.60-C 5" Rough Cul tiva te� r3ws t Parks, Ce,-oter;es Heavy sc _ I -. lC ?" . no crop r - Plav_ Neavy so,. h'tn er ; C'.?.-...cr I ,grounds 2G 0._, Sandy so,; no crony r, I r �C ` Sandy so:: pith crc- r. Zc - Railroad yard areas V 20 pas,ure .- .. :_ I. Unimproved areas C. Sandy soil O.1C hoodl Z= I ands Streets: Asphaltic 5 Concrete0.70-0.9 0.80-0.95 Brick 0.70-'0.85 I i rDrives and walks 0.75-0.85 � Roofs 0.75-0.95 NNote: The designer must range. Generally,ularse gerrgareas x�thepermeablelect the �soils, slopes and dense P C value vegetation should have lowest (C) values.. Smaller areas with dense soils, (C) v alu t. steep slepes, and sparce vegetation should be assigned bign,st (C) values. _ Source: Virginia Erosion and Sediment Control Nandboo�:, 1980. yin .; SC.and Water Conservation C c ,r, Or�m1SS10n. AY4 RAINFALL INTENSITY CHART IN INCHES PER HOUR HARTFORD , CT MINUTES STORM (YRS) 5 6 7 8 9 10 11 12 13 1.4 15 16 17 18 19 20 21 22 23 124 125 26 27 28 29 130 31 32 2 4.1 3.8 3.6 3.4 3.2 3.1. 3.0 2.9 2.8 2.6 2.5 2.4 2.3 2.3 2.2 2.2 2.1 2.1 2.0 2.0 1.9 1.9 1.8 1.8 1.7 1.7 1.7 1.7 10 6.2 5.6 5.4 5.3 5.0 4.7 4.5 4.4 4.3 4.1 4.0 3.9 3.8 3.7 3.5 3.4 3.3 3.3 3.2 3.2 3.1 3.0 2.9 2.9 2.8 2.7 2.6 2.6 25 ;,1. 6.7 6.4 6.1 5.7 5.6 5.4 5.2 5.0 4.9 4.7 4..5 4.4 4.3 4,2 4.1 4.0 4.0 3.9 3.8 3.7 3.6 3.5 3.5 313.3 3.2 3.2 50 7.7 7.4 7.0 6.7 6.5 6.1 6.0 5.8 5.6 5.4 5.2 5.1 5.0 4.9 4.7 4.6 4.5 4.4 4.3 4.3 4.2 4.1 4.0 3.9 3.8 3.7 3.6 3.6 100 8.4 8.0 7.6 7'.3 7.0 6.8 6.6 6.4 6.2 6.0F1.815.615.4 5.2 5.1 5.0r 4.8 4.7 4.6 4.5 4.4 4.3 4.2 4.1 4.0 3.9 3.8 STORM MINUTES (YRS) 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 2 1.6 1.6 1.6 1.5 1.5 1.5 1.4 1.4 1.4 1.3 1.3 1.3 1.3 1.3 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.2 1.1 1.1 1.1 1.1 s 1.0 2.6 2.5 2.5 2.5 2.4 2.4 2.3 2.3 2.3 2.2 2.2 2.1 2.1 2.1 2.0 2.0 2.0 2.0 1 .9 1 .9 1 .9 1.9 1 .8 1.8 1..8 1.8 1.8 1 .8 25 3.1. 3.1 3.0 3.0 2.9 2.9 2.8 2.8 2.7 2.6 2.5 2.5 2.5 2.5 2.4 2.4 2.4 2.4 2.3 2.3 2.2 2.2 2.2 2.2 2.2 2. 1 2. 1 2. 1 50 3.5 3.4 3.3 3.3 3.2 3.2 3.1 3.1 3.0 3.0 2.9 2.9 2.8 2.8 2.8 2.7 2.7 2.7 2.6 2.6 2.5 2.5 2.4 2.4 2.4 2.4 2.4 2.3 100 3.8 3.7 3.7 3.6 3.6 3.6 3.5 3.5 3.4 3.4 3.3 3.3 3.2 3.2 3.2 3.1 3.1 3.0 2.9 2.9 2.8 2.8 2.7 2.7 2,712.712.612.6 CHART 2 d V <OwN a �� V/ 1540 SULLIVAN AVENUE •SOUTH WINDSOR,CT 06074-2786 soe c° AREA CODE 860/644 2511 FAX 860/644-3781 Date: March 2, 1999 To: Jim LeClair Fuss & O'Neill Inc. 146 Hartford Road Manchester, CT 06040 From: Jeffrey H. Folger Zoning/Wetlands Enforcement Officer Town of South Windsor Re: Review of Savings Bank of Rockville Facility, Ellington Road, plans dated 2/99 I have reviewed the site plans for the proposed Savings Bank of Rockville facility with the following comments: 1. Residence time of stormwater within the biofilters should be determined. The biofilters should be designed to maximize the travel time of stormwater runoff through them. 2. The applicant should consider mitigating proposed disturbances to existing wetland areas. 3. The plan proposes to utilize the existing swale and existing 12"culvert at Ellington Road as detention for stormwater peaks. When does the estimated peak happen at the Podunk River/Ellington Road culvert? Will water generated from this site pass through the Ellington Road culvert prior to the peak from the upstream reaches of the Podunk? 4. The applicant should be prepared to demonstrate that there are no feasible and prudent alternatives to the proposed plan. 5. Catchbasins within the parking lot that do not have sediment structures could have the overall storage capacity increased by increasing the sumps to 4 feet. 6. The plan proposes to utilize over land flow on the existing meadow from the proposed biofilters to the existing watercourse. I would recommend increasing the density of the existing vegetation along the expected route. cc. Town Engineer Town Planner IWA/CC CL, f�G ,r I -t 1a AvV GO 35 —�A+ /Lk U-I ( l .LtOL4, S' a �r vv, �c � ,tom �.�,N � � ''' � ,� ,.cam -�� ����� � y� ��,,.� �e.a"_'`ti"� �,¢..°"� 'Gc` ate, ce aie 1540 SULLIVAN AVENUE•SOUTH WINDSOR,CT 06074-2786 SOR.00 AREA CODE 860/644-2511 FAX 860/644.3781 Date: March 8, 1999 To: Jim LeClair Fuss & O'Neill Inc. 146 Hartford Road Manchester, CT 06040 From: Jeffrey H. Folger Zoning/Wetlands Enforcement Officer Town of South Windsor Re: Review of Savings Bank of Rockville Facility, Ellington Road, plans dated 2/99 I have reviewed the site plans for the proposed Savings Bank of Rockville facility with the following additional comments: A detailed report from the consulting soil scientist should be included in the application. Also, because the application proposes to disturb wetland areas'a biologist's report should be submitted detailing functions, values, and impacts to the wetland system. The report should also present proposed mitigation to potential impacts. cc. Town Engineer Town Planner IWA/CC �O FUSS&O'Neill Inc. Consulting Engineers 146 Hartford Road,Manchester,CT 06040 5921 TEL 860 646-2469 FAX 86o 643-6313 INTERNET:www.FandO.com Other Offices: Longmeadow,Massachusetts Fairfield,Connecticut April 16, 1999 East Providence,Rhode Island C i Mr. Jeffrey H. Folger REEN ' Zoning/Wetlands Enforcement Officer - Town of South Windsor a'' 1540 Sullivan Avenue South Windsor, CT 06074 ��. SIN mas RE: The Savings Bank of Rockville Development -Ellington Road Dear Jeff, In accordance with our telephone conversation of March 10, 1999, I am providing you with the following information: Amount of Inland Wetland Disturbance: 22,352 sq. ft. or 0.51 AC. Amount of Disturbance of Inland Wetland Regulated Area: 35,374 sq. ft or 0.81 AC. Please feel free to contact me with any questions or comments. Sincerely, )0111" - James A. LeClair, P.E. Project Manager 87546\A l0UAL0416A.WPD Corres. REMA ECOLOGICAL SERVICES, LLC 19 Foster Street Manchester,CT 06040 (860)649-REMA (860)647-8397(fax) rema8@aol.com www.remaecological.com April 16, 1999 Town of South Windsor Inland Wetlands Agency/Conservation Commission 1540 Sullivan Avenue South Windsor, CT 06074 RE: Wetlands Mitigation Plan The Savings Bank of Rockville Deming and Clark Streets and Ellington Road South Windsor, Connecticut RES Job # 9886SWN8 Dear Commissioners: Accompanying this letter please find a "Wetlands Mitigation Plan" ("the Plan") for the above- referenced proposed project. This Plan, together with some off-site mitigation that is discussed below, is offered by the Savings Bank of Rockville ("the applicant") as mitigation to offset proposed impacts to wetlands. Under the proposed development plan for the site roughly 0.53 acres of direct wetland impact would be proposed. The Plan calls for the creation of 0.24 acres of wetland and for the restoration of an additional 1.59 acres of existing wetlands. Below, I briefly summarize some of the elements and rationale that went into designing a comprehensive wetland mitigation strategy. 1. Existing wetland and watercourse conditions at the site were thoroughly inventoried In general, the wetland resources on the site consist of extensive wet meadows which are periodically hayed and/or mowed, a shallow pond (a.k.a. the goose pond), a Phragmites stand, and scattered shrub thickets. Soil&Wetland Studies ♦ Ecology ♦ Environmental Planning&Management ♦ Permitting ♦ Ecological Restoration&Habitat Mitigation ♦ Expert Testimony South Windsor Inland Wetlands Agency/Conservation Commission MFTM SBR Proposal, South Windsor, CT April 16, 1999 Page 2 2. The functional quality of the site's wetlands and watercourses were assessed Overall, the quality of the site's regulated resources are rated as providing low-moderate and moderate quality functions. The portions of the wetland that would be altered under the proposal (i.e. mowed wet meadow) are of relatively low value. 3. Archived aerial photographs of the site were reviewed Aerial photographs going back to the 1940s were reviewed at the Town Hall. These indicate that the site has been under continuous human influence and manipulation for nearly six decades. The pond was likely dug and a ditch was cut into the landscape from the pond to Ellington Road in an effort to drain adjacent land for agricultural purposes. This ditch was dredged and moved several times since, each time becoming straighter. The wetlands on the property have been farmed and or mowed since at least the 1940s. 4. Town staff was consulted during the design of the Plan. Mr. Jeffrey Folger, Town of South Windsor Zoning/Wetlands Enforcement Officer was consulted on a number of occasions during the design of the Plan. He offered suggestions, most of which have been incorporated on the Plan. S. Mowed upland meadow will be converted to highly functional wetland habitat. Roughly 0.24 acres of upland meadow will be excavated and planted to a shrub/forested wetland community(see Wetland Creation Areas"A"and`B"). 6. Mowed wet meadow will be converted to highly functional wetland habitat Roughly 1.24 acres of relatively low value wetland will be enhanced and/or restored by aggressively planting it to a shrub/forested wetland community. Over 850 shrubs and saplings of various sizes will be planted within five carefully selected areas. 7. Mowed wet meadow will be planted to provide an enhanced riparian buffer zone Roughly 0.35 acres of relatively low value wetland will be aggressively planted to provide a riparian buffer along the eastern bank of the site's ditched watercourse. 8. An observation platform blind will be provided off-site. Following up on a suggestion by Mr. Jeffrey Folger, SBR has agreed to provide an observation platform/blind on a property to be soon purchased by the Town as Open Space. The selected location overlooks significant and extensive wetland and watercourse areas. These are used by a variety of waterfowl including black duck and wood duck. This off-site and out-of-kind wetland mitigation element will allow the public to observe wildlife without disturbing them. South Windsor Inland Wetlands Agency/Conservation Commission SBR Proposal, South Windsor,CT April 16, 1999 Page 3 The Wetland Mitigation Plan will offset the proposed impacts to wetland and watercourse functions on the site. Moreover, it is my professional opinion that the implementation of the Plan will provide a net-enhancement of wetland functions on the site, by restoring a natural and productive vegetative community to areas that would otherwise continue to be mowed and/or be hayed as they have been for many decades. A more detailed report ("Supplemental Report") discussing the above and other wetland, wildlife and water quality issues is being prepared. It will be available prior to the Public Hearing scheduled for April 21", 1999. We are looking forward to presenting the proposed project before the Commission and answering any questions that you might have. Respectfully submitted, REmA ECOLOGICAL SERVICES, LLC George T. Logan, MS Registered Soil Scientist Certified Professional Wetland Scientist (No. 581) VIA HAND-DELIVERY GTL/sog Enclosure: Wetlands Mitigation Plan CC: Joseph F. Jeamel,Jr., SBR Jim LaClaire, Fuss &O'Neill, Inc. (via fax only) Peter Jay Alter, Alter& Sherwood, LLC (via fax only) projects I cone 19886SWN81.SBR2.doc 40 M aa, o ' 1540 SULLIVAN AVENUE• SOUTH WINDSOR, CT 06074.2786 soR.co�'� AREA CODE 860/644-2511 FAX 860/644-3781 May 28, 1999 Certified #P462498005 RE: Appl. #99-08P Savings Bank of Rockville 280 Talcottville Road Vernon, CT 06066 Dear Madam/Sir: At the May 19, 1999 regular meeting, the Inland Wetlands Agency/Conservation Commission approved appl. #99-08P - Saving Bank of Rockville - IWA/CC permit for the construction of a 40,000 sq. ft. office building, parking area, stormwater structures an associated improvements on 10.98 acres located on the southerly side of Ellington Road and easterly of Clark Street, RC zone (Assessor's map #51, parcel 1). This approval is subject to the following conditions: 1. One blueprint copy of the entire set of plans and this letter reproduced thereon, must be submitted to this Commission. This must be completed within 65 days of approval prior to any construction activity on the site. Plans submitted to Planning 8a Zoning Commission shall be considered having met this requirement. 2. The application shall indemnify and hold harmless the Town of South Windsor against any liability, which might result from the proposed operation or use. 3. The permit is valid for five years and shall expire on May 19, 2004. It is the landowners)/applicant(s) responsibility to track expiration dates and notify the Commission of a renewal request at least 65 days prior to expiration. 1 Savings Bank of Rockville May 28, 1999 Page 2 4. All approvals required must be obtained and submitted prior to any activity on the site. 5. A contact person shall be identified on the plans. 6. We recommend a bond in the amount of$10,000 be submitted to the Planning 8s Zoning Commission to ensure compliance with the Erosion and Sedimentation Control Measures. $5,000.00 to be released upon stabilization of the site and $5,000.00 to be released after one growing season, to ensure proper establishment of wetland plantings. 7. The applicant shall inspect the drainage system a minimum of two times of year and cleaned accordingly. 8. A vegetation maintenance plan must be submitted indicating the areas that will be mowed and the areas that will be left as a meadow. Very truly yours, INLAND WETLANDS AGENCY/ CONSERVATION COMMISSION P ' F Philip Forzley, Vice Chairperson PF:dr cc: Chief Building Official Planning & Zoning Commission Town Engineer 1'-3 5/8" 7'-0" 1'-3 5/8" or: 00 q III A sh30 l i SK1 10 d• r q PRE—CAST CONCRETE �. THE PIER CAP TO MATCH SAVINGS BANK OF ROCKVILLE WINDOW SILL COLOR A � M PRESSURE TREATED _ 2x12 CUT TO SIZE 2 3" SK1 / „ 1 2 M.D.O. PRESSURE TREATED x 2x8 CUT TO SIZE RUN CONDUIT W CONCEALED IN BROSCO WOOD TRIM `I..•. ': '" `s°'Ly"y � �\ �, d -, BRICK PIER A (2) 1 LAMP 1/2 M.D.O. �Z J;.I• ., s.l '" (' FLUORESCENT N ��� 14 I'•° ".I•»I TUBE„ LIGHTS, s ,• �. �I 113 —0 LONG PRESSURE TREATED 0, (LOW PROFILE) 2x4 FRAMING ELEVATION BROSCO 8090 BROSCO WOOD TRIM WOOD TRIM; U . '• • 1 a' ' `d i• of 8099 STOPS .d SCALE: 1/2" = 1'-0" PRESSURE TREATED 1 x8 CUT TO SIZE #4 REBAR IN 1'-3 5/8" GROUT (TYP) 2— 1/2"0 x 12" BRICK PIER ANCHOR BOLTS V CAST INTO BRICK PIER O Fco `. 1/2" M.D.O. A z BROSCO WOOD pq TRIM BELOW SECTION THRU EXTERIOR SIGN DETAIL AT PIER SKI 2 SCALE: 1 1/2" = 1'-0" SCALE: 1 1/2" = 1'-0" CD 01-CLAP / e.i-le MP■ � / Nv..n.z}-u•Ra s I i ) NY..et r7-IY RGax / / / Iev, rhe't / hV.-rare-Is•ra AV m:-n.n-u•roe.c li ( LOT I rzem Pit AV AREA•40 ACRES/ ON Fr \ \ R.B. \ N 11 Y le— �L n7.m' sm mmo.,3" r w..iuo I / J LOT 2 Ir / _ ' � ou ARr•A• oe AaaFs «H..I Do" , �-- ON12 ; I � I rw-Taeo re;r P"P0SED fL \ i Gt33 \ / Imvmx.:,. zi / 17 / T,TxW■ q li R w8 rd 2Y, r" nea I 10 C=M cnom rc i 1-1 / ? / e.Tv I mmwela xl�wr / wnr mloir SKLAt ►L So Pa fif e j � ram.-ezro NOT RELEASED FOR CONSTRUCTI o FUSS & ONM Le INC.Consulting Engineers / 146 HA-ff RD ROAD. 11ANCHES"ER, CONNECTICUT 06040 860) 646-2469 ✓ DRAINAGE AREA - MAP e.s� a THE SAVINGS BANK OF ROCKVILLE ELLINGTON ROAD 00 L SOUTH WINDSOR CONNECTICUT u EL PR0,1. NO.:87546A10 DATE:FEB. 1999 SCALE: MY r m:-eaa-rs•urn r / / m �.c I-, / f+r<.n.zr-rs•rrr s I I \ f+e su-rs• u'A r. / ,L� / � � m:.n.rs.ra•fs nt' ��I �I ' Aw m pa Jos \ \ •` r AW 4.0 ACRES / OR Fr \ R.B. \ � N 1113.V6 \ \51 94 (+ snow v. > 226 76 a !AT= � J 4 t AREA MDs ACRES It OR PROPOSED \ I I PL ^Yl 21 77 T� 7rYS \ oCl r I 1 1 �„; j, S A2u y p rr / &KLR WL bM Mi 15 rNazn ' M_)290 J / SKLX VOL M PQ t!6 1 NOT RELEASED FOR CONSTRUCT,I 03O FUSS & ONEU L INC.c.,rwtw Ems. ! / 146 HARiFORD ROAD, MANCHESTER, CONNECTICUT 06040 �oPo� DRAINAGE AREA - MAP THE SAVINGS BANK OF ROCKVILLE 10 ELLINGTON ROAD L SOUTH WINDSOR CONNECTICUT ! L, a PROD. N0.:87546A10 DATE:FEB. 1999 SC/' 7:1"= 100' - t>ys craw `x' s+e.x♦7_rs'tcv H � sn, w-r c�r � wv.n.ts-u•na s � I I Irs-ulm m Pit no Alai►-40 AUM 96 04 p \ Al 51-3V6 mrw\Tr- / 1 tor! l t� muse naa ' % ARE4.KtW AaieEJCR / msrse rew !• / _` - 477"SA FE r ♦ rp / f J 1�I I @}'ter-�=' � '� �!1��p x,.' •ruo m..) i � ' IME IL 77 fit �" t�M.A �U�• � '! ` __ � ♦ y / Tr-T7Ll0 S / J ; moor �` I aWIA XL 50 to is sxx v.rozss J s�r ' — swan s iv"r SKLR IOL stI r'A in � / NOT RELEASED FOR CONSTRUCTI eee r^ FUSS & OMU-L INC.C-mai4ng Engi--s ' \ / 146 HARTFORD ROAD, MANCHESTER, CONNECTICUi 06040 \ (860) 646-2469 DRAINAGE AREA " MAP THE SAVINGS BANK OF ROCKVILLE RSA Q. cn 10, ELLINGTON ROAD 00 SOUTH WINDSOR CONNECTICUT ' L a PROJ. NO.:87546A10 DATE:FEB, 1999 SCALE:1"= 100' .3