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HomeMy WebLinkAboutTown of South Windsor Project D JUN 15 1993 gouth Windsor INLAND WETLANDS AGENCY/ ddNSERVATION COMMISSION TOWN OF SOUTH WINDSOR INLAND WETLAND, WATERCOURSES AND CONSERVATION APPLICATION APPLICATION #. `7 '' t DATE RECEIVED ZONE INSTRUCTIONS . 1. The application, map and plans must- be submitted in triplicate, together with the fee set forth in the Inland Wetlands, Watercourses and Conservation Regulations, Town of South Windsor. (See Regulations, Section VI) . 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 VIII - 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. (See Regulations Section VII) . Also complete state filing form. A. APPLICANT'S NAME Town of South Windsor ADDRESS 1540 Sullivan Avenue South Windsor, CT 06074 .PHONE: (HOME) (WORK) 6 4 4-2 511 B. LEGAL OWNER'S NAME: See abutter' s list - Town has acquired easements from the owners. ADDRESS PHONE: (HOME) (WORK) (List additional owners, addresses, and phone numbers 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. Town has acquired easements from the owners D PROJECT NAME: (if any) Dower Road Critical Area Treatment 1. Contact Person (if further information is needed). Jerry Iazzetta, Town Engineer _ 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. Drainage ditch in rear of properties on Farnham Road,' Scantic Meadow Road, Pear Tree Lane and Dower Road. F. NAMES OF ALL ABUTTING PR OPERTY OWNERS: (USE SEPARATE SHEET IF NECESSARY) SEE ATTACHED LIST G. HAVE YOU NOTIFIED ALL ABUTTING PROPERTY OWNERS BY CERTIFIED LETTER -THAT AN APPLICATION IS PENDING BEFORE THE AGENCY?. Yes **(You are requ ired to supply a copy of the letter with the list of the names of the abutters) .** H. PURPOSE AND DESCRIPT ION OF ALL PROPOSED REGULATED ACTIVITY(S) -INCLUDING AMOUNT AND TYPES OF FILL AND THE TIME ELEMENT INVOLVED: ' n drama e ditch is erodin badlyand several lar e areas have The exists g �veral sections of pipe and the en from Pear Tree Lane have slumped, s- fallen in. The project will extend 3 storm drain outlets, add a riprap channel and stabilize the side slopes along the ditch. The fill placed will re-establish pre-existing grades and is 3000 cubic yards . I. A CLASS A-2 MAP OF THE PROPERTY DRAWN TO 1"-40' , SHOWING THE AREA TO BE DEVELOPEVITIESENT OF THE WETL ANDS AND WATERCOURSES AFFECTED, TOPOGRAPH9 EXISTING AND PROPOSED ACT NAMES AND LOCATIONS OF ADJACENT PROPERTY OWNERS MUST BE SUBMITTED. J. ACREAGE OF WETLANDS AND WATERCOURSES TO BE ALTERED: 1.22 Ac. 0 K. ACREAGE OF WETLANDS AND WATERCOURSES. TO BE CREATED:- L. LINEAL FEET OF PROPOSED STREAM ALTERATION 1,.360 M. TOTAL LAND AREA OF PROJECT AND PERCENTAGE WHICH IS WETLANDS: 3 .3 0 Ac. /8 0 z PERMITS OR APPROVALS THAT HAVE BEEN ISSUED, APPLIED FOR, OR REQUIRED UIRED N. IDENTIFY ALL OTHER . WITH RESPECT TO THE PROPOSED ACTIVITY SET FORTH IN THIS APPLICATION. (TheseE may include I of but not be limited to, local Planning & Zoning, Zoning $OSracal orpFederal Permits. ) D.O.T. , The Army Corps of Engineers, and any other State, L Corp Army of Engineers, Planning. & Zoning, DEP (401 Permit) AT 0. THE APPLICANT (OR DESIG NATED REPRESENTATIVE) HEREBY ATTESTS THAT A SIGN WILL BE POST EdD THE FOLLOWING LOCATIONIS Pear. Tree Lane at end of cul-de-sac Farnham R at end of cul-de-sac.. - � Y i by Town o f South Windsor NAME Jerry Iazzetta ON OR BEFORE FOLLO NG DA u y SIGNATURE: lea r THE UNDERSIGNED HEREBY APPLIES FOR THE REGULATED ACTIVITIES LISTED IN PARAGRAPH H ABOVE, FOR A INLAND WETLAND, WATERCOURSES AND CONSERVATION PERMIT FOR THE PROPERTY DESCRIBED HEREIN AND CONFIRMS THAT: 1. HE IS FAMILIAR WITH THE CURRENTLY EFFECTIVE INLAND WETLAND, WATERCOURSES AND CONSERVATION REGULATIONS OF THE TOWN OF SOUTH WINDSOR. 2. HE/SHE 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 HIS/HER 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 INLAND WETLAND,. WATERCOURSES AND CONSERVATION COMMISSION MEMBERS AND/OR ITS REPRESENTATIVE TO ENTER -THE PORTIONS OF THE 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 FIN DECISION HAS BEEN ISSUED. &I Signatu of Applica Je E. Zur rigen Date June 14, 1"3 To n P nager Receive and filed a the ce of the Planning Department this day of 19_ Signature of Agent Date FEE RECEIVED YES_ NO Fby T DATE RECEIVED HEARING DATE rGV* (1) (2) PERMIT GRANTED DATE PERMIT DENIED DATE 1 DOWER ROAD DRAINAGE WATERWAY CRITICAL AREA TREATMENT PROJECT I . BACKGROUND INFORMATION A. GENERAL The Town of South Windsor is located in the east central part of Hartford County. It is bordered on the west side by the Connecticut River, to the north by East Windsor, to the south by the Towns of East Hartford and Manchester, and to the east by the Towns of Vernon and Ellington. The Scantic River flows through the very northwestern portion of the town. The drainage ditch, formed in a terrace escarpment which has and is in need of stabilization, is an unnamed tributary of the Scantic River. The total drainage area to the ditch lies within the Farnham Estates subdivision which was built in the late 1950's . The limits of construction will include points of access and temporary rights of way starting from the outfalls of three storm drains, one from Pear Tree Lane, one from Dower Road and the third from Scantic Meadow Road. Construction will, continue westward along the ditch to a point approximately 700 feet from the last outf al l where a safe outlet 'can be maintained.* No further impact or activity is anticipated beyond this point. B. SOILS The soil in this drainageway. area are mapped as Terrace Escarpment, sand and clay (Te) . According to the Soil Survey of Hartford County, this soil map unit describes a land feature of steep slopes on terrace breaks, along drainageways and in highly dissected areas.. Slopes are generally short, but they are 100 feet to several hundred feet wide. The surface textures of this map unit range from very fine sandy loam to loamy sand to sand with underlaying silty and clayey material. This soil has a high risk of erosion. Other soil map units associated with the . Te unit and within the project planning area include Windsor loamy coarse sand (WuA) , Windsor loamy fine sand (WvB) , Ninigret fine sandy loam (NnA) , and Elmwood sandy loam (EnB) . These soils play an important role in the hydrology of the drainageway, ranging from moderately well drained to excessively drained soils. M 1 C. GEOLOGY The local surficial geology consists of four major types : 1 ) shallow terrace deposits, 2) windblown dune deposits, 3 ) lake deposits and 4 ) glacial till. The terrace deposits were deposited adjacent to glacial Lake Hitchcock. They consist of laminated sand, silt, and clay. Sand dunes are scattered throughout the housing development. No dunes were seen in the immediate site area although shallow windblown sand may overlie the terrace deposits . Lake deposits consists of varved (layered) silt, clay, and fine sand. These clays are well exposed in the channel of the brook. Glacial till, which is an unsorted mixture of many soil grain sizes, is exposed in the brook near the large slope failure. D. ARCHAEOLOGICAL The project area consists primarily of severe slopes and low wetlands draining into the Scantic River. These landscape features possess a low sensitivity for cultural resources . Archaeological site locations in this area are predominantly located on the terraces with flat topography and well- drained soils above the slopes and wetlands . Unfortunately, this coincides with the existing subdivisions along Dower, Scantic .Meadow and Farnham Roads and Pear Tree Lane. The only possibility of preserved sites may be in the backyards of house lots along Scantic Meadow Road. II . PROBLEM Storm water runoff flows associated with development and road construction have been concentrated into three pipe outlets from Dower Road, Scantic Meadow Road, and Pear Tree Lane. Peak flows from these outlets exceed the historical flows entering the natural drainage channel. This drainage channel conveys runoff from the top of the sand and gravel terrace down to the floodplain of the Scantic River some 50 feet lower in elevation and approximately 500 feet to the west. The sandy, gravelly soils are highly erodible by nature along the steep banks . The situation is compounded by the location of varved clays underlying the sandy soils, creating landslides at .the toe of slope. Over time these flows have eroded the drainage channel causing it to downcut some three to five feet and meander as it seeks to find equilibrium with the landscape. Saturated shallow sandy surface soils have responded to these changes by slumping and creeping in a downhill direction. These conditions have created an erosion hazard and unstable land - form. One headwall has become undermined and conduit sections have -begun falling into the drainage channel . Safety issues have become important as two children have been trapped within the gully where wet slippery clay exposed through erosion has made travel treacherous and rescue necessary. Water quality is degraded as sediment carried by the flows is transported to the Scantic River f loodplain. The non- point source 319 grant request from the Hartford County Soil and Conservation District (provided through the Connecticut Department of Environmental Protection from the U. S . Environmental Protection- Agency's 319NPS grant program) identifies this as a problem in the Scantic River Basin. Banks of the drainage channel are continually creeping downhill. These landslides represent a long-term source of sediment and can cause trees to uproot and fall into the gully. vegetation along the banks is inadequate to control the erosion. Soil areas prone to slumping will continue to pose a hazard until either the surface and subsurface water is controlled or slumping continues to the point where banks and the depth of the drainage channel reach equilibrium. III. RESOURCE EVALUATION The environmental effects of the proposed restoration include the following: A. WATER QUALITY Improved water quality of surface flows entering the Scantic River will result from implementation of the project. Improvement results from sediment reduction through stabilizing of the banks and beds of the drainage channel . B. SOIL EROSION The soil boundary between the surface deposits and the underlying clay present a shear. line along the banks of the drainage channel, which when saturated and aggravated by the downcutting of the bed create conditions where bank slumping occurs. Implementation of this restoration * will result in the stabilization of the banks and drainage channel reducing soil erosion. The installation of subsurface drainage above the seep lines will halt the continuous downhill creep and slumping of soil on the slopes . There will be a reduction of soil deposition within the Scantic River and subsequent downstream movement. Water collected from the subsurface drainage pipe will be safely outletted into the waterway system. C. WETLANDS AND WATERCOURSES The landform of the site is a terrace escarpment. Sands and gravels. . are layered over varved clays . This situation generates narrow valleys with steep side slopes and a narrow stream bottom. There are little or no floodplains associated with these drainages consequently wetlands have not formed. The drainage channel does classify as a watercourse according to Connecticut wetlands criteria. The total drainage area contributing to this is approximately 70 acres . There are seeps at the interface of the coarse materials and the clays, however, they are non-hydric soils . The drainage channel will . be enclosed within a pipe resulting in a loss of 600 feet of intermittent channel. The floodplain for the Scantic River is immediately downstream from the end of the project measure. It will not be affected by the proposed work. D. ,SAFETY Stabilization of the banks and drainage channel will improve safety to individuals walking along or within the steep headout area of the site.. The varved clays are very slippery when wet and have trapped children resulting in the need for their rescue. IV. PROPOSED RESTORATION Reshape all landslide areas and install underdrainage. Install new drop manholes at the outlets from all three storm drains . Install catch basins for surface water flow and pipe all flows to the downstream end of the largest landslide area. Fill existing eroding channels adjacent to and over the existing and newly installed conduits. Install approximately 700 feet of riprap lined outlet channel. Grade all areas, seed and landscape. This will stabilize the existing ditch, control erosion, improve water quality, eliminate a safety hazard, improve the aesthetics of the area, and provide storm drainage capacity for a 25 year . flood event. This will achieve the Town of South Windsor and State of Connecticut's objectives and is consistent. with the goals of the Eastern Connecticut Resource Conservation and Development Area Plan. t V. QIIANTITIES .The following is a preliminary estimate of :materials needed to accomplish the planned improvements . Clearing and grubbing. . . . . . . . . . . . . . .. . . . . . . . . . . 4 . 0 acres Excavation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8, 000 cubic yards Earth Fill . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . 3,000 cubic yards Riprap. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1,000 cubic yards Bedding. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .400 cubic yards Subsurface Drains. . . . . . . . . . . . . . . . . . . . . . . . . . . . .800 feet 1591 , 30" and 42" Dia. RCP. . . . . . . . . . . . . . . . . . . . .925 feet Manholes and Catch Basins. . . . . . . . . . . . . . . . . . . . .4 each Seeding, Mulching, Jute Mesh, wildlife Planting, Sediment Control. . . . . . . . . . . . . . . . . . . .4 .0 acres All work will be designed and constructed according to Soil Conservation Standards and Specifications. 46 A(W %-0WA.J *,of A - v4m ovo r t PROJECT L OCA TION E A S T �.„ ' tZM k A I w r, a' •(pJs[��� v , , 1 40-1. A \ Art l J �..r.r S v �► 1 MM �11 G a e't F f' t IN a N v » e� ll f N�r � � A ovtR Lp t t�.,Bginrregp A7Nt7 r` j �1 � ` \ '\ �Il �►/Ye-:n l (� /'--�'- 'J Y f0urr rlry NEVERS tcmm ` / , Z ROAD �� 1 l r- ;l ►� rARM u SAND 4AfANA � fit ��..- �' ji/ _ •KI�1/� � �l s "fit �f• '" s • e � N Ck po %"ADYU t IO rWl IN404,tq�9 r1 � COmmtftTY . r O t NO rryy��nn cc 4 /ti 1, �,t ► r t00 r h ' 0 NIL L POND , �S v �M A' , a� C 1(� rR rtilr t ♦U w all " a� Q ° MJr f r ► � rf c°�N at�t e � 1540 SULLIVAN AVENUE • SOUTH WINDSOR. CONN. 06074 AREA CODE 203/644-2511 �QSOR•Cp� November 23, 1992 D Mrs. Elizabeth Warren, Chairman 4P 1 Inland Wetlands Agency/Conservation Commission 1540 Sullivan Avenue NOV 24 1992 South Windsor, CT 06074 Re: Dower Road Drainage Ditch C.A.T. INLA South ND WETLANDS DS AGENCY/ CONSERVATION COMMISSION Dear Mrs . Warren: The Town is preparing plans for restoration and improvements to the drainage ditch which carries stormwater from the outfalls of Dower Road, Farnham Road and Scantic Meadow Road, and anticipates making an application to your Commission. One of the requirements of the application is for a "Class A-2 map of the area to be developed" . Section 8 . 2 of the IWA/CC Regulations has provisions for the Commission to waive this map regulation. The proposed work will be within existing drainage easements and will require some additional drainage easements and temporary construction easements and would not affect property lines . It would appear that our proposal does not include factors where this degree of accuracy would be warranted. The Town is therefore requesting that a waiver from the use of a Class A-2 map be granted for the Dower Road Drainage Ditch C.A.T. proposal. If you have any questions, please call me at 644-2511, Ext. 245 . Very truly yours, JT ry Iaz t , P.E. ng'neer JCl/jsv cc: Michael J. Gantick, Director of Public Works EOMN44 cop e � 71o� 4 w� 1540 SULLIVAN AVENUE SOUTH WINDSOR. CONN. 06074 ~dsoR.co�'� AREA CODE 203/644-2511 December 8, 1992 Mr. Jerry C. Iazzetta, P.E. Town Engineer Town of South Windsor 1540 Sullivan Avenue South Windsor, CT 06074 Dear Jerry: Re: Dower Road Drainage Improvements At the December 7, 1992 regular meeting of the South Windsor Inland Wetlands Agency/Conservation Commission, the Agency approved a motion to grant your request for a waiver to the Class A-2 map requirement (pursuant to section 8 . 2 of IWA/CC Regulations) for the application you intend to submit for the Dower Road Drainage Improvements . Very truly yours, C John E. McCahill Zoning/Wetlands Enforcement Officer JEM/pmm cc: Director of Public Works Chairman, IWA/CC i t GEOLOGIC REPORT DOWER ROAD CRITICAL AREA TREATMENT PROJECT S. WINDSOR CT. Rudy Chlaada Geologist 1/4/93 a t 2 DESCRIPTION OF PROJECT-PRESENT CONDITIONS The Dower Road. C.A.T. Project is an erosion control project designed to reduce severe erosion and slope failures in the clay soil along a small brook at the rear of a housing development in the Town of South Windsor. A large diameter pipe will be installed in the channel of the brook to convey storm water to a riprapped outlet downstream of the slope failures. Present conditions along the brook are the result of accelerated erosion caused by the discharge of stormwater into the brook. A 30" concrete pipe discharges near sta 7+21 on the Pear Tree Lane or south side of the brook. At about station 4+86 on the north side of the brook a 15" drain discharges. A 27" pipe discharges into a branching channel near 3+95. This branching channel is the result of heavy groundwater discharge from the interface of the varved clay and overlying sandy terrace deposit. The stormwater discharge is downcutting the channel and undermining the stream banks which resulted in the failure of the catch basin and storm drain pipes. In some cases, vertical slopes .in the varved clay along-the stream are 4-6 feet high. Household debris and trash has been thrown in the brook. Several trees have fallen across the channel and several others are in danger of falling. Without the project the unstable conditions will be further aggravated and result in further erosion and possibly property damage. SLOPE FAILURES There are three slope failures evident in the upper reaches of the channel. The combination of the stormdrain' outflows and heavy water flow in the channel has downcut the toe of slope and created unstable clay slopes. These areas are shown on the site drawing. The most significant slope failure from the design standpoint is on the south side of the channel from sta 9+50 sta 7+50. The dimensions of the slide are about 200 feet in length and 90 feet from toe to scarp uphill. The scarp at the upper slope of the failure is 3 .5 feet in height. The slide is typical of slope failures in the varved clay. A large bulb of soil material. has moved downslope in response to the erosion of the toe which removed the weight. Two smaller slope failures are seen on the north side of the channel between sta 5+70 and 7+50. They are 251toe to scarp. A third 40'x 60' slope failure is apparent on the south side of the channel from station 5+25 to 6+25 upstream of the failed 30!' storm drain. 3 GEOLOGIC INVESTIGATION A geologic investigation was performed by drilling six borings, each to a depth of twenty feet in the locations shown on the site drawing. The boring contract was awarded to Clarence Welti Associates of Glastonbury, Ct. *The holes were drilled with a hand auger and sampled with 1401b. hammer dropped from a portable tripod. Twenty four inch split spoon samples were taken in a continuous fashion as the hole was advanced. Drillhole locations were not suitable for access by a drill rig. The borings were drilled to determine the nature of the varved clay, depths of the failure surface of the slide, the proper depth at which to install relief drains, suitability of soils for backfill, as well as documenting the condition of the subsurface for construction. Samples were visually classified according to the USCS. SITE GEOLOGY The entire site area is underlain by varved or layered glacial lake deposits of highly plastic fat clay (CH) , non plastic silt (ML) and fine sand (SP) . The highly plastic clay predominates. Very thin layers of fine sand just a few millimeters thick can be found layered with the clay varves. The silt is a gradation between the two. Above the slope failure scarp on the south-side up to 3 .5 feet- ' of topsoil and silty fine sand is exposed. This veneer of sand is a terrace deposit. This sand has a permeability that is estimated to be a couple orders of magnitude greater than the underlying clay. A seep line would be expected to develop at the interface of these two soils after precipitation events. On the north side of the stream channel the varved clay is exposed-at the surface with very little topsoil overlying it. RESULTS NORTH SIDE OF BROOK Borings DH-1 and DH-2 were drilled on the north side of the channel. Since this is a south facing slope, it receives more sun light. This dries the soil more rapidly resulting in lower moisture in the soil profile than on the south side of the brook. , 4 DH-1 was drilled about 20 feet downstream of the 15" storm drain outlet and DH-2 was drilled about 15 feet uphill of the slope failure near station 11+40. DH-1 penetrated about . 1 foot of topsoil and leaf debris above the .varved clay. To a depth of 6 feet the clay was dry and stiff due to the low water content. At 6 feet, the blowcounts in the clay decreased significantly from 25 per foot to 6 per foot due to the increased water content. Another decrease in consistency occurred at about 10 feet where samples of the clay were seen to be visibly wet. True equilibrium groundwater conditions were not determined due to the short period of time the holes remained open. DH-2 was similar to DPI-1 in soil profile with decreasing stiffness corresponding with increasing moisture content of the clay. SOUTH BIDE OP BROOK On the south side of the brook borings DH-3 ,4,5, 6 were drilled as shown on the site drawing. Borings DH-3,4,5 penetrated from 1 -2 feet of brown or black topsoil which classifies as either a silty sand or organic soil with organic matter (SM or OL) . Non plastic fines range up to about 15% in the sand. DH-6 found varved clay shallow beneath only 6" of topsoil. Below the topsoil, all borings penetrated the varved clay deposits. It is significant to note that the varved deposits on this side of the brook are softer and overall .have a higher moisture content than those on the north side of the brook. These higher water contents are an underlying factor in .the susceptibility -of the clay slopes to failure on this side of the brook even though the stream has downcut along the toes of both slopes. These combined factors act to keep the slope moisture laden increasing the weight and the possibility of slope failure. The overlying silty sand on the south side also permits infiltration of rainfall into the subsurface rather than runoff. The low blowcounts in the clay may also be itzdicative of the failed slope. c, 5 CONCLUSIONS AND RECONIIKENDATIONS 1. The slope failures are the result of erosion along the toe of the moist clay slope due to heavy stormwater flow through the channel from the culverts. Failure occurred within the varved clay and not at any interface with another soil. The silty sand terrace deposits above the slope allow infiltration of rainwater thereby increasing the weight of the clay and increasing the potential for slope failure. 2. No high permeability zones were found within the varved clay nor Were there any indications of underlying glacial till as previously suspected. Therefore the drain needs only to be deep enough to drain a 'portion of the slope not to reach any specific layer. 3. A subsurface drainage system should be considered to intercept the infiltrating precipitation near the top of the slope.. This drainage system can be connected to the overlying sandy terrace deposits to carry the Water through drains diverting it around the slope instead of flowing over the repaired slope Where it would cause erosion. 4 e A sufficient resisting wedge of soil should be considered for design at the toe of slope to counteract the potential sliding wedges of soil on the channel sideslopes. Potential for another failure is most likely on the south slopes of the channel where higher water contents add more weight' to the sliding wedge of clay. 5. The highly plastic varved clay will create an extremely slippery working surface after the topsoil is stripped during construction. 6. Geotextile for stabilization of the access road should be considered in the area of the slope failures where the soft clay could make travel difficult for trucks and heavy machinery. t� I _ United States . Soil 16 Professional Park Road Department of Conservation Agriculture Service Storrs, Connecticut 06268-1299 Subject:' SOI - Wetland Determination and Soils Date: January 6, 1993 Investigation, Dower Rd. RC&D Project South Windsor, CT. To: William Ireland File code: 430-13-11 State Conservation Engineer USDA, Soil Conservation Service 16 Professional Park Road Storrs, CT 06268-1299 On November 19, 1992, Kip Kolesinskas, SCS state soil scientist, Donald Parizek, SCS soil scientist, and I performed an on-site investigation of the soils and delineated the wetland soils at the site of the Dower Road drainage waterway stabilization project in South Windsor. Donald Parizek and I returned to the site on November 20, 1992 to further investigate the soils and complete a soil map of the site. The limits of the area investigated are shown on the enclosed map; additional soils and areas of Federal and State wetlands exist outside of the area mapped. The Dower Road critical area treatment site sits within the Scantic River drainage basin. The landform is highly dissected lacustrine plain overlain with a windblown cap of sandy material. The critical area site is along a deeply entrenched drainageway which outlets on the floodplain of the Scantic River. The drainageway is highly dissected with steep but relatively short slopes and a narrow valley bottom. The top of slope is near elevation 80 MSL while the floor of the drainage is near elevation 40 MSL. Orientation of the drainage is east to west. The Scantic River flows north to south, its floodplain is immediately to the west of the project site. The watershed area contributing to this drainage contains approximately 55 acres. The width- of the drainage channel varies from less than 10 feet from top of bank at the head of the terrace break to about 30 feet as the channel reaches the floodplain of the Scantic River. Vegetation within the drainageway from the top of the terrace to the floodplain floor can be characterized as wooded to mixed species of hardwood trees. In addition, a small stand of red pine occurs along the southeast slope of the drainage break. The species of trees present at any given spot are somewhat dependent upon the soil and moisture conditions along the slope. Facultative wet and facultative species of trees including American elm, red maple, and white ash are common on the northern slopes where the sandy soils are shallow and the clays are near the surface. On the south slopes where the sandy soils are deeper, facultative upland and upland species including black cherry, white oak, and red oak are present in addition to the other hardwoods. Multiflora rose, barberry and euyonomus are the common- understory shrubs on both slopes. Poison ivy is abundant throughout. Facultative wet to obligate The Soil Conservation Service vis an agency of the United states Department of Agriculture t n. William Ireland, January 5, 1993 2 species including cinnamon fern, jewel weed, sensitive fern and sphagnum mosses are present along the upland drainages and on non eroded banks and floodplain of the drainageway. Soils at the site consist of eroded lacustrine sediments and recent alluvium. Eroded convex nose slopes are dominated by silty and clayey moderately well drained lacustrine soils. Concave areas, active slumps, and eroded watercourses capture sufficient surface and subsurface water to maintain wetland hydrology and hydric soils. The lithologic discontinuity, where sandy materials interface with silty and clayey materials at the top and bottom of the slopes, concentrate seepage and soil movement. These area developed into narrow wetland corridors along the seepage zones and downslope from areas of active springs. Additional Connecticut wetland and hydric soils are concentrated along the narrow floodplain. The soils were evaluated- using spades and augers to a depth of approximately forty inches. It was -possible to observe some soil to a greater depth along the streambank. Connecticut wetlands (defined by the state as poorly drained, very poorly drained, and floodplain and alluvial soils) were flagged on the site. In addition, the area flagged as Connecticut wetlands would also be considered hydric soils and has the observed hydrology and vegetative community to be considered Federal wetlands as per the 1987 Manual. The only differences between State and Federal boundaries would be the inclusions of narrow areas of moderately well drained alluvium along a slightly higher stream terrace in the middle of the project corridor. These inclusions are too small in size to map out separately and some of the delineations are surrounded by hydric soils. These inclusions make up less than two percent of the delineation. The following map units were delineated: Fluvaquents, frequently flooded (map unit 109) is adjacent to the main stream, extending from the western end of the site to just west of the main slump. Fluvaquents consist of very deep, nearly level, very poorly drained to poorly drained loamy soils formed in recent alluvium. These soils are subject to frequent very brief to long flooding from October to June and are Connecticut wetland soils and hydric soils. Included in mapping are narrow areas of Udifluvents (somewhat poorly drained to moderately well drained floodplain soils) . Scitico, Shaker, and Maybid soils (map unit 9) are in the swales and along watercourses north and south of the main stream and in the broad area just southeast of the existing 270 outlet. This map unit includes one, two, or all three soils in each delineation. These soils are very deep, poorly. drained and very poorly drained loamy over clayey or clayey soils. All of these soils are Connecticut wetland soils and hydric soils. Included are small areas of recent active slumps dominated by poorly drained Aquents, and narrow areas of Fluvaquents along watercourses. These soils cannot be named at the series level. The upland north of the stream is dominated by Brancroft soils (map units 25C and 25E). Brancroft soils are very deep, moderately well drained soils formed t William Ireland, January 5, 1993 3 in silty and clayey lacustrine deposits. Some areas have a thin fine sandy loam cap over the silty and clayey sediments. The upland south of the stream is dominated by Melrose soils (map unit 27E) on the higher slopes and Elmridge soils (map unit 28D) on the lower slopes. Melrose soils are very deep, well drained soils formed in a two to three foot thick mantle of loamy materials over finer textured lacustrine sediments. Some areas have a sandy-or loamy cap thicker than 40 inches. Elmridge soils are very deep, moderately well drained soils formed in loamy over clayey sediments. If you have any questions, don't hesitate to call me. Marjorie Faber Assistant State Soil Scientist Enclosure cc: Kipen J. Kolesinskas, SSS, SCS, Storrs, CT i CJ Le Gt s 1913 BMXXM ZassMATZ - Dom RO= C.A.T. The following calculations were made to estimate the sediment load delivered to the Scantic river floodplain. This sediment load is , due to the severely eroding streambanks, slumps and downcuttinq of the small unnamed brook behind the housing development. The cause of the erosion is the stormwater runoff that was routed into the channel as a result of the development. The development and roads were built about 1960. When the stormwater was- routed into the existing stable Channel headcuttinq and erosion of the channel, banks and outlet areas of the storm drains /began. Erosion of these areas undercut the toes of slopes and caused failures. AS a result even greater loads of sediment entered the delivery system of the watercourse. CALCULATION To estimate the total sediment delivered to the Scantic River flooplain, the following methods were used. I. Method 1 - Stream bank recession Assume: Length of channel = 1200' Height of eroding bank = 5' Bank recession rate = .33 ft.annual total (both banks) 1200 x 5 x .333 = 1998 cu. ft. or 74 cu yds./yr. 74 yds. x 32 years = 2368 yds. since 1960 100 lbs./ cu.ft. s 3196 tons of soil delivered to the Scantic River f loodplain since 1960. Annually, this is about 100 tons of sediment delivered each year. 2. Method 2 --- Total volume estimate Assu2ae: 1960 Conditions Length of channel = 12001 Height of bank = 1.51 Width of channel = 51 Volume of the 1960 channel s 9000 Cu.Ft. or 333 cu.ydo. Present conditions Length of channel= 1200,1 Height of bank = 51 Width of channel = 10f Total present channel volume = 60,000 cu-ft. Ul i� -. • volume - 1.960 volume = total soil volume eroded presentft.x 100 lbs. cu. ft.- 60,000 - 91000 si,000ns of soil eroded in 32 years. 5, 100, Oooibs. or Z554 to on an annual basis this method figures out to be 59t cu.yds. or SO tons of sediment delivered downstream to the canic floodplain each year* both methods an estimate of bet�reen a 0 end 10 0 tons p °yearrca bo arrived at. Trio heavy sediment .load is soon per year aasz b• here the floodplain widens and a large deposit wh! Seen downstream w at the co nfluancs with the Scantic as an underwater delta. T projectload Will have a positive impact on reducinq the s i ont to the scantic, improving the water quality• No attempt was made to quantify the sheet and rill erosion or rsanyhe ' nal contribution from the individual gullies_'�'-h!m$e va additional . total erosion Ervin the channel estimate includes this. f4 t� CC C � rvwfl� apsoutA ?1)&U&Ot r Q 1540 SULLIVAN AVENUE • SOUTH WINDSOR. CONN. 06074 R.co�' AREA CODE 203/644-2511 June' 16, 1993 Letter mailed to all residents on attached list Res Dower Road C.A.T. Project Update Dear Resident: The final plans for the Dower Road C.A.T. Project are completed and are being reviewed by. Town staff. -Application has been made to the Town of South Windsor Inland Wetland Agency and will probably be presented July 12, 1993 at their regular meeting. The meeting starts at 7:30 PM and is usually in the Sprenkel Room . at Town Hall. As part of the application process, some of you will be receiving a certified letter informing you of this meeting. Applications have also been made to the Army Corp of Engineers and the Department of Environmental Protection for their approvals . A residents informational meeting is scheduled for July 22, 1993 at 7 :00 PM, in the Council Chambers of Town Hall, 1540 Sullivan Avenue. We will have available the final design drawings and will have a tentative construction schedule. Please take this opportunity to acquaint yourselves with the scope and details of this project. We will be available to answer your questions after a brief presentation. If you have any questions or require additional information, I may be reached at 644-2511, Ext. 245. Very truly yours, J ry C. �azzeWP.E. wn En eer JCl/jsv cc: Michael J. Gantick, Director of Public Works Eric Scherer, Soil Conservation Service John McCahill, Zoning/Wetlands Enforcement Officer ..// i James A. Sherman John M. Ferreira Pamela F. Raymond 234 Farnham Road 201 Scantic Meadow Road 45 Dower Road South Windsor, CT 06074 South Windsor, CT 06074 South Windsor, CT 06'074 Philip & Gail Griffith Jean A. Hogan Stanley & Elsie Hjarne 55 Dower Road 165 Scantic Meadow Road 175 Scantic Meadow Road South Windsor, CT 06074 South Windsor, CT 06074 South Windsor, CT 06074 Stephen & Sandis Ouimette Ivan & Geraldine Nick nair Christopher Glista 195 Scantic Meadow Road 189 Scantic Meadow Road 181 Scantic Meadow Road South Windsor, CT 06074 South Windsor, CT 06074 South Windsor, CT 06074 Charles & Agnes Woods Pamela & Orlando Casiano Jeffrey 0. Plitt 224 Farnham Road 214 Farnham Road 208 Farnham Road South Windsor, CT 06074 South Windsor, CT 06074 South Windsor, CT 06074 Anthony J. Concatelli Jr. Therese & Gerald LeBlanc Sharon Sufrin 200 Farnham Road 192 Farnham Road 23 Elizabeth Street South Windsor, CT 06074 South Windsor, CT 06074 South Windsor, CT 06074 Alma & James Doer Laurie & Raymond Parr Rita & Gordon Beebe 21 Pear Tree Lane 25 Pear Tree Lane 157 Scantic Meadow Rd. South Windsor, CT 06074 South Windsor, CT 06074 South Windsor, CT 06074 Mary L. & Frank Wall Jr. Idalande D & Patrick Cyr 149 Scantic Meadow Road 35 Dower Road South Windsor, CT 06074 South Windsor, CT 06074 Jeanne & Richard Prunier Gloria D & Samson Hartan Audrey S & George T Zern 79 Dower Road 141 Scantic Meadow Rd 29 Dower Road South Windsor, CT 06074 South Windsor, CT 06074 South Windsor, CT 06074 Beverly & Helmer Johnson Jennifer & Michael Seamon 71 Dower Road 20 Pear Tree Lane South Windsor, CT 06074 South Windsor, CT 06074 Mr. & Mrs . Robt. Turner 65 Dower Road So. Windsor, CT 06074 r James A. & Celeste S.Sherman Pamela F. Raymond 234 Farnham Road 45 Dower Road South Windsor, CT 06074 South Windsor, CT 06074 James K. & Carmella R. Arnett Stanley J.R. & Elsie T. Hjarne 55 Dower Road 175 Scantic Meadow Road South Windsor, CT 06074 South Windsor, CT 06074 Stephen W. & Sandis J. Ouimette Ivan D. & Geraldine Nicknair 195 Scantic Meadow Road 189 Scantic Meadow Road South Windsor, CT 06074 South Windsor, CT 06074 Charles E. & Agnes .E. Woods Orlando J. & Pamela A. Casiano 224 Farnham Road 214 Farnham Road South Windsor, CT 06074 South Windsor, CT 06074 Anthony J. Jr. & Janet P. Concatelli Gerald H. & Therese B. LeBlanc 200 Farnham Road 192 Farnham Road South Windsor, CT 06074 South Windsor, CT 06074. James H. & Alma Doer Gordon & Rita Beebe 21 Pear Tree Lane 157 Scantic Meadow Rd. South Windsor, CT 06074 South Windsor, CT 06074 Jeffrey 0. & Linda 0. Plitt Christopher Glista 208 Farnham Road 181 Scantic Meadow Road South Windsor, CT 06074 South Windsor, CT 06074 Raymond C. & Laurie Parr Sharon Sufrin 25 Pear Tree Lane 184 Farnham Road South Windsor, CT 06074 South Windsor, CT 06074 Michael E. & Jennifer E. Seamon Robert Turner 20 Pear Tree Lane 65 Dower Road South Windsor, CT 06074 South Windsor, CT 06074 John M. Ferreira Jean A. Hogan 201 Scantic Meadow Road 165 Scantic Meadow Road South Windsor, CT 06074 South Windsor, CT 06074 s�4 e � O-P sioa� qO&Uaot 4 w� 1540 SULLIVAN AVENUE . SOUTH WINDSOR, CONN. 06074 R.Cp� AREA CODE 203/644-2511 June 18, 1993 Jerry C. Iazzetta, Town Engineer Town of South Windsor 1540 Sullivan Avenue South Windsor, CT 06074 Dear Mr. Iazzetta: Application #93-22W, Dower Road Cynical Area Tma ine& A meeting of the Inland Wetlands Agency/Conservation Commission will be held July 12, 1993 in the Sprenkel Room at the Town Hall, 1540 Sullivan Avenue, South Windsor, Connecticut. Your application has been placed on the agenda. Three signs must be posted on the property where it can be seen from a town street. The signs must be posted on Pear Tree Lane at end of cul-de-sac; Farnham Road at end of cul-de-sac, and 55 Dower Road for ten continuous days prior to the above meeting (July 1, 1993) . The signs are available at the Town Hall if not already acquired. Very tr 1 y yours, P y11i M. Mann Recor ng Secretary Inlan Wetlands Agency Conservation Commission t�wN aE+ t� r Tiau� wc, 1540 SULLIVAN AVENUE - SOUTH WINDSOR, CONN. 06074 r�osoR-CO AREA CODE 203/644-2511 CERTIFIED MAIL June 18, 1993 Dear Property Owner: Re: Dower Road Critical Area Treatment Project Town of South Windsor 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 for the Dower Road C.A.T. Project 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 John E. McCahill, Zoning/Wetlands Enforcement Officer at the South Windsor Town Hall, 644-2511, Ext. 229 . Very truly yours, Jer Iazz P.E. To ng eer JCl/jsv 1 :tJ OwN aE,< fro r � 1540 SULLIVAN AVENUE SOUTH WINDSOR CONN. � w 06074 r�°soR.CO AREA CODE 203/644-2511 July 2, 1993 TO: Elizabeth A. Warren, Chairman, IWA/CC FROM: John E. McCahill, Zoning/Wetlands Enforcement Officer Re: Application #93-22W, Dower Road Critical Area Treatment DOCUMENTS REVIEWED: Plans for Dower Road Drainage Waterway, application form, Dower Road Drainage Waterway Critical Area Treatment Project narrative, Soil Report from Soil Conservation Service, Geologic Report, and Sediment Estimate - Dower Road C.A.T. COMMENTS: 1 . A waiver to the class A-2 map requirement (pursuant to Section 8. 2 of the IWA/CCRegulations) was granted -atthe December 7, 1992 regular meeting for this application. 2. Construction note #2 on sheet 2 of 27 states, "The entire area within the construction limits with the exception of the yard area at 25 Pear Tree Lane is forested" . The plans should show the proposed limits of clearing and a note should be added stating the limits of clearing shall be flagged in the field and inspected by Town Staff prior to clearing. The plans should also indicate that stumps are to be chipped on site or removed; not buried. 3. The contour lines shown on sheet 2 of 27 are existing. This should be indicated in the legend. The proposed contours are shown through a series of cross-sections on sheets 16-19 of 27 . 4 . Construction notes #3 & 4 on sheet 2 of 27 should be added to sheets 3 & 4 of 27 . 5 . The extent of the regulated area is shown on sheet 2 of 27 . This has been shown as 40, from the wetland limits as flagged or 80, from the center line of existing ephemeral waterway, whichever is greater. 6 . The plans should show catch basin protection for the basin located in the Pear Tree Lane cul-de-sac. The proposed construction entrance is located near the basin. It should be wrapped with filter fabric and covered with plywood when trucks are using the proposed construction entrance. 'I t Elizabeth A. Warren Page Two July 2 1993 Application #93-22W 7 . The detail for typical stabilized construction entrance on sheet 7 of 27 should include filter fabric being placed under the crushed stone. IF APPROVAL IS CONSIDERED, SUGGESTED APPROVAL CONDITIONS INCLUDE: 1 . The plans shall show the proposed limits of clearing and a note shall be added stating the limits of clearing shall be flagged in the field and inspected by Town Staff prior to clearing. A note shall also be added stating stumps are to be chipped on site or removed; not buried. 2 . The legend on sheet 2 of 27 shall indicate that the contour lines shown are existing contours. 3. The construction notes #3 & 4 on sheet 2 of 27 shall be added to sheets 3 & 4 of 27 . 4 . The plans shall show catch basin protection for the basin located in the Pear Tree Lane cul-de-sac. It should be wrapped in filter fabric and covered with plywood when trucks are using the proposed construction entrance. 5 . The detail for the typical stabilized construction entrance on sheet 7 of 27 shall include filter fabric being placed under the crushed stone C JEM/pmm U.S.DEPARTMENT OF AGRICULTURE SPEED MEMO PART NUMBER DATE To ZOMd OCC,04*t/I Tc*w R-ow-wet. 1 � SUBJECT FROM . Pc-vVf*04%4)JRPWerAaV MESSAGE(WRfFE CONCISE MESSAGE SIGN AND FORWARD PARTS 1 AND 3 TO ADDRESSEE RETAIN PART 2.) "`"'xm*w— v,49:r r DIV �IZ,71?3 JUL 7 191 South Windsor INLAND WETLANDS AGENG`/ SIGNATURE REPLY(USE THI SPACE FOR REPLY SIGN AND DATE.RETURN PART 3 TO SENDER,RETAIN PART 1.) SIGNATURE DATE FORM AD-311 (REV.3/81) ADDRESSEE COPY i two Tlau� ap s s 1540 SULLIVAN AVENUE • SOUTH WINDSOR. CONN. 06074 v 4�'�'osoR•co��4+ AREA CODE 203/644-2511 July 13, 1993 Jerry C. Iazzetta, Town Engineer Town of South Windsor 1540 Sullivan Avenue South Windsor, CT 06074 Dear Mr. Iazzetta: . Re: Application #93-22W, Dower Road Critical Area Treatment At the July 12, 1993 regular meeting, the Inland Wetlands Agency/Conservation Commission approved with conditions application #93-22W - Dower Road Critical Area Treatment, Town of South Windsor - IWA/CC permit for the repair of an existing eroded drainage ditch located in the rear of properties on Farnham Road, Scantic Meadow Road, Pear Tree Lane, and Dower Road, A-20 zone as shown on plans submitted by the U. S. Department of Agriculture Soil Conservation Service, Drawing No. CT-RCD-H-93-11 dated February, 1993 and revised through July, 1993 . This approval is subject to the following conditions : 1 . Two blueprint copies of the entire set of final 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. 2 . Construction activities shall be subject to the approval of the Town Engineer. 3 . The permit is valid for three years and shall expire on July 12, 1996 . 4 . All approvals required must be obtained and submitted prior to any activity on the site. Very truly yours, J Eliz eth A. Warren Chairman EAW/pmm cc: Planning & Zoning Town Engineer 1993 S ASSISTANT TC'v;?q LEGAL NOTICE TO BE PUBLISHED IN THE JOURNAL INQUIRER MONDAY, JULY 19, 1993 SOUTH WINDSOR - IWA/CC At the July 12, 1993 regular meeting the Commission voted to take the following action: 1 . Approve with conditions appl. #93-22W, Dower Road Critical Area Treatment, Town of South Windsor - IWA/CC permit for the repair of an existing eroded drainage ditch located in the rear of properties on Farnham Rd. , Scantic Meadow Rd, Pear Tree Lane, and Dower Rd. , A-20 zone 2 . Approve with conditions appl. #93-24W, James K. Arnett - IWA/CC permit to fill and grade, using clean fill only, on the rear of property located at 55 Dower Rd. , A-20 zone Dated at South Windsor, CT this 13th day of July, 1993 Elizabeth A. Warren, Chair LETTER OF TRANSMITTAL 40,0 ENGINEERING DEPARTMENT o C G TOWN OF SOUTH WINDSOR 1540 SULLIVAN AVENUE ��oso�•ca�'� SOUTH WINDSOR, CT 06074 (203) 644-2511 FAX 644-3781 7 3 DATE . TO. Ave- So (t)/N DSO Ae ,Cl` 060 7¢ WE ARE SENDING YOU: Copies Date No. Description 6 A T THESE ARE TRANSMITTED as checked below: For your use For your file As requested Returned with revisions For review and comment Other PLEASE RETURN/COMMENT BY: COMMENTS: N 7- VZ Copy To: Fr m: �d eA� STATE OF CONNECTICUT DEPARTMENT OF ENVIRONMENTAL PROTECTION BUREAU OF WATER MANAGEMENT INLAND WATER RESOURCES DIVISION D 566-7220-WQC PUBLIC NOTICE WATER QUALITY CERTIFICATION nOT 20 1"31 APPLICATION NO. WQC-93-1009 South Windsor SOUTH WINDSOR P,,aning & ZOM►g CommU01 Pursuant to Section 401 (a) (1) of the Federal Clean Water Act (the "Act"), the Inland Water Resources Division of the Department of Environmental Protection has under consideration the application of the Town of South Windsor for the proposed discharge of materials in the waters of the State for the stabilization of an un-named tributary to the Scantic River located 200 feet north of Pear Tree Lane and 200' west of Dower Road in South Windsor, CT. The stabilization project includes 600' of stream encasement and 700' of stream channelization. The proposed discharge involves the filling of 1.22 acres of inland wetlands. This applicant will be evaluated for compliance with the applicable provisions of Sections 301, 302, 303, 306 and 307 of the Act and the Water Quality Standards and Criteria of the State of Connecticut adopted pursuant to Section 22a-426 of the Connecticut General Statutes. A copy of this application is available for inspection in the office of the Division, 79 Elm Street, Hartford, CT 06106. Any questions may be directed to the Inland Water Resources Division at 566-7280. To be considered, comments should be received by the Inland Water Resources Division in writing, on or before 1 1/2 3/9 3. Dated: 10/ 15/9 3 Robert Smith, Bureau Chief 1 (Printed on Recycled Paper) 79 Elm Street ' Hartford, CT 06106 An Equal Opportunity Employer v 04oRvEs- .o W I N D S O R P:uM 6A A NI ul 5"P 6k G SD~ER 'e 4C/s4v M qY 4p t A O Q 7 4 A~ RO RrE SITE , over I STREET� 4, CEM 1( 6ROOK 1 w4 f fft MOUSE 4rF i q.%E ST •1L t 9 1 < �N W v ? m` h � Q �\ g � 2 s� r raRO POAD SCALE 1 1� 0 i/• �/2 3/� �0.E / iti 1 0 1000 2000 3000 4000 I[[T R �a� VICINITY MAP IN:DRAINAGE DITCH BACK OF S CANTIC DOWER R D. C.A.T. PROJECT M5ADOW RD. TOWN OF SOUTH WINDSOR C ooffRoicT AT: SOUTH WINDSOR , HA RTFORD ENGINEERING DEPARTMENT 92-808 COUNTY, C ON N, 1 S40 SULLIVAN AVENUE wt F"11' SOUTH WINDSOR. CONNECTICUT 06074 PURPOSE: TO IMPROVE B RESTORE DRAWN Y: os Y: cA • THE DRAINAGE DITCH jC 1 3-10-93 �nns�oNa: cw 6 .awl. .��.. _•ia; s �`.��� �o- w -� ate; �i•�r.a. !- y �=tir„�:�.- r_q. ,.. :t:,f,.` ,�. +,''�:.e :( s,:,.3..',h q; '+;:._ .4 '`. � r; om r 'trf;;�Y°.""..,-.: � �';. ";k�..r w' r.._'li.'tr t .'-"•;*A^. ..:..: ..... _,''YRr::t �.:��, 9,• �� a: r _..: — •:..::. .,,..,. .". ?�. t...r�21t-'.5+.,.a�'... ,. ,• ;,:..,• ,h! 'lpr:' ..,�.. ...,.. � � s ''as. � <� .. .� .0 7. a:, A... ....�•.�1ny S a :'tit � r�"�_W1 +I•��':ST ..'�,,,' >},',� -',�2^t f ?:�t: .F iq�II ....y. .; ...J��n'. y .; ., ..:r: is '-vim.:.. ;' .'x... • '- • -v.e .:... .. ,. ..j•. ,. �:. ,..... 'n .s. ,...:.�: rt ,LF•.'�!• s,'!+ Y*J' �1w.' �r _•s� '.d'�: 4-� �.1 }.� .5.^ .,,. ,.�.t=:>F1•< ,:+� ..::,,,., e ..Y .rr f". :at.a- «,'+fy._� t+ !r '�`:•..a� �_'' "�,. :.:.. -.tj]��,,�. ��'�11s ��' '.*.,. ,c".�, �`;t< hut'',;:^1. � .. _ ,. ... - '^y �'�� ... �:.. - ::t:: ` Y 'a�s i�. a �. .�kv W i^•�.��x'�y��,.�.tv.fit. .w .� F�.. •...: ..: v •as. ._.n.., �M;,.,.w t H .:.' .. .. _ Tyr.... .: � � -SM.� ..{ 'tf'�"� - 'i'! w.....i .cy +f.. , •. d� k � '« An �� - ��1; :�_ �.5+ .o�'r'a ��,p t - -'^.1. '• vf` n -:.t. �. ... _,. i. � - ySi.';`1*r�.. �/'`f •fY' khP � '::h � T y ....■ OW D 4 -9af `2:Y�•.�"tA a'.w' •1�{�i...a.... —TOWN 'OF F'SOU`f-SOUTH WINDS N SOR , :r...: .�...is '. . ...... . ... ... ,...w TOWN HALL .. } h ' SO WINDSOR.'CONN 06 TO Marcia A. Banach DATE July 27, 1994 Director of' Planning L ---� SUBJECT: DOWER ROAD C.A.T. - 92-808 FOLD- There will be a preconstruction e timq f tr bove mentioned project on Wednesday, August 3, 1994 at 9 :00�'°? AM in the Sprenkel Room here at t own Hall. cc: M. Gantick, B. Davies, L. Braddock, M. McCahill, K. Reichle, M. Stead, F. Shaw, B. Lanning, SWPD By5���_ N s`4 ce 1540 SULLIVAN AVENUE SOUTH WINDSOR,CT 06074 1-CO�� AREA CODE 203/644-2511,EXTENSION 200 JUIN FAX 203/644-3781 South Windsor Town Manager INLAND WETLANDS AGENCY/ SERVATION COMMISSION June 3, 1996 Mrs. Elizabeth Warren, Chairman Inland Wetland Agency/Conservation Commission South Windsor Town Hall 1540 Sullivan Avenue South Windsor, CT 06074 RE: DOWER ROAD CAT PROJECT Pear Mrs. Warren: The Town of South Windsor requests that our permit for the Dower Road CAT Project be renewed as it expires July 12, 1996. We are currently working on some items under the warranty condition of the construction project. Also, a small area has had a slippage problem and will need to be addressed. If you have any questions or require any additional information, please call Jerry C. Iazzetta, Town Engineer, at 644-2511 , Ext. 245 . Very truly yours, atthew B. Ga4iga Town Manager MBG/jsv CC,. Michael J. Gantick, Director of Public Works Marcia A. Banach, Director of Planning Jerry C. Iazzetta, Town Engineer „Ua1D0*ML nc"V r•MWd