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Home My WebLink AboutSD-21-21 - Plans - Record - 1420 Hinesburg RoadWGGGGGUE UE UE UE UE 200' UP SLOPE ISOLATIONS S SGGG GGETCETCETCETCETCETCETCETCSSSSSSSSS S S S ETC ETC 100' UP SLOPE ISOLATION S S S100' DOWN SLOPE ISOLATION200' UP SL OPE IS OLATI ON W 100' D O W N S L O P E I S O L A TI O N 100' DOW N SL O P E I S OLATI O N EXISTING WELL APPROXIMATE LOCATION OF EXISTING WASTEWATER DISPOSAL FIELD EXISTING 4" PVC SEWER SERVICE EXISTING 8" PVC SEWER MAINEX. 4" PVC EX. C/O TREE LIMITS TO BE RETAINED w/ FENCING (TYP.) EXISTING LOT 1 PROPOSED ELECTRICAL TRANSFORMER ABANDONED WASTEWATER DISPOSAL FIELD PROPOSED PROPERTY LINE (TYP.) PROPOSED LOT 3 PROPOSED LOT 4 PROPOSED LOT 2 200' DOWN SLOPE ISOLATIONEX. GAS VALVE 200' U P SL O P E I S OL A TI O N W UEUEUEWFD FD VERMONT ROUTE 116 / HINESBURG ROADHIGHLAND TERRACEN/F S. & S. MCALLISTER n/f FARLEY LIVING TRUST n/f L. LUXENBURGn/f B. GARDNER n/f H.&M. DUBOIS D. & L. KERWIN n/f M.&M. ABRAMSEX. BUILDINGEXISTING BUILDING 432 434 436 438 442 4 4 4 44 6 448 43 4 4 3 6 438432 4 3 4 424 4 2 6 428 4 3 4 4 3 2 4 2 6 4 3 0432428 450440 440 430 420 420 430 W426428430428 430 432 432430 4 3 4 X X X XX XX X X X X X XX X XX X XX X X X WCLASS III WETLAND 429 430430 REAR SETBACK 30' 10' 20' SIDE SETBACK FRONT SETBACK LOT AREA 20,000 SF DIMENSIONAL SUMMARY REQ'D. EXISTING LOT 1 15%BUILDING COVERAGE EXISTING LOT 2 PROPOSED LOT 2 15% 12,000 SF 93' 12' 25' 35'BUILDING HEIGHT MAX.≤35' THESE PROPERTIES LIE WITHIN THE NEIGHBORHOOD RESIDENTIAL ZONING DISTRICT (NR) DSM BRR GAC 1" = 40' 18232 C1.0 LOCATION MAP 1" = 2000' OVERALL PROPOSED CONDITIONS SITE PLAN A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com DONALD & LOIS KERWIN 234 BOUTIN ROAD HINESBURG VERMONT 05403 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 DONALD & LOIS KERWIN KERWIN SUBDIVISION NOTES 1. UTILITIES SHOWN DO NOT PURPORT TO CONSTITUTE OR REPRESENT ALL UTILITIES LOCATED UPON OR ADJACENT TO THE SURVEYED PREMISES. EXISTING UTILITY LOCATIONS ARE APPROXIMATE ONLY. THE CONTRACTOR SHALL FIELD VERIFY ALL UTILITY CONFLICTS. ALL DISCREPANCIES SHALL BE REPORTED TO THE ENGINEER. THE CONTRACTOR SHALL CONTACT DIG SAFE (888-344-7233) PRIOR TO ANY CONSTRUCTION. 2. PROPERTY LINE INFORMATION IS BASED ON A PLAT ENTITLED "PLAT OF SURVEY DONALD & LOIS KERWIN" DATED 2018 PREPARED BY CIVIL ENGINEERING ASSOCIATES INC . THIS PLAN IS NOT A BOUNDARY SURVEY AND IS NOT INTENDED TO BE USED AS ONE. MONUMENTATION RECOVERED IS CONSISTENT WITH RECORDED DOCUMENTS. 3. SITE INFORMATION IS BASED ON A FIELD SURVEY PERFORMED BY CIVIL ENGINEERING ASSOCIATES, INC DECEMBER 2018. CIVIL ENGINEERING ASSOCIATES, INC. SURVEY ORIENTATION IS "GRID NORTH", VERMONT COORDINATE SYSTEM OF 1983 (HORIZONTAL) AND NAVD88 (VERTICAL) ESTABLISHED FROM GPS OBSERVATIONS ON SITE. 4. CONTOUR INFORMATION IS BASED UPON LIDAR DATA FROM 2004. HORIZONTAL AND VERTICAL DATUM BASED ON VCS NAD 83 AND NAVD 88. 5. WETLAND DATA PROVIDED BY ARROWWOOD ENVIRONMENTAL, DATED JUNE 22, 2021. WETLAND IDENTIFICATION THROUGH FIELD INVESTIGATION BY ARROWWOOD ENVIRONMENTAL, 2021. WETLAND MAPPING BY ARROWWOOD ENVIRONMENTAL FROM SUB-METER GRADE GPS DATA COLLECTED AT THE TIME OF DELINEATION. LEGEND ST EXISTING CONTOUR EXISTING GRAVEL EXISTING PAVEMENT EXISTING STORM EXISTING WELL EXISTING SEWER MANHOLE EDGE OF BRUSH/WOODS APPROXIMATE SETBACK LINE APPROXIMATE PROPERTY LINE W S SEP., 2020 9/2/20 DSM SKETCH PROPOSED LOT 3 15% 96' 11' 25' ≤35' PROPOSED LOT 4 15% 98' 11' 25' ≤35' 6% 51,690 SF 74' 35' 99' NO CHANGE N/A 36,000 SF N/A N/A N/A NONE 12,000 SF 12,000 SF 1/26/21 DSM PRELIMINARY FINAL 30%TOTAL COVERAGE MAX.25%26%25%11%<1% 3/04/21 DSM REVISED PER CITY COMMENTS APPROXIMATE EASEMENT LINE 3/16/21 DSM REVISED PER CITY COMMENTS WETLANDS EXISTING DECIDUOUS TREE EXISTING CONIFEROUS TREE 6/28/21 DSM ADD CLASS III WETLAND DATA FD EXISTING FOUNDATION DRAIN 9/20/21 DSM REVISED PER CITY COMMENTS 10/26/21 DSM REVISED CULVERTS / DRIVEWAYS P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-SITE.dwg, 11/2/2021 10:38:27 AM, gcarter GGGGETCETCETCETCETCETCSSSSS S S S S EXISTING WASTEWATER DISPOSAL SHIELD EXISTING WELL SHIELD UEUEETC ETC ETCAPPROX. LOCATION OF EXISTING UNDERGROUND ELECTRIC & TRANSFORMER W DUBOIS DRBUTLER DR EXISTING LOT 1 EXISTING LOT 2VERMONT ROUTE 116 / HINESBURG ROADHIGHLAND TERRACEN/F S. & S. MCALLISTER n/f FARLEY LIVING TRUST n/f M.&M. ABRAMS n/f L. LUXENBURG n/f B. GARDNER n/f H.&M. DUBOIS D. & L. KERWIN 450440 440 430 420 420 420 420 460450440440440440 4 4 04404304304304304 3 0 430 43042 0 420420410 41 0 41040040 0 4 0 0 400390390380 380360 370380390400410420430430 DSM BRR MAB 1" = 100' 18232 C1.1 LOCATION MAP 1" = 2000' OVERALL EXISTING CONDITIONS SITE PLAN A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com DONALD & LOIS KERWIN DONALD & LOIS KERWIN KERWIN SUBDIVISION NOTES 1. UTILITIES SHOWN DO NOT PURPORT TO CONSTITUTE OR REPRESENT ALL UTILITIES LOCATED UPON OR ADJACENT TO THE SURVEYED PREMISES. EXISTING UTILITY LOCATIONS ARE APPROXIMATE ONLY. THE CONTRACTOR SHALL FIELD VERIFY ALL UTILITY CONFLICTS. ALL DISCREPANCIES SHALL BE REPORTED TO THE ENGINEER. THE CONTRACTOR SHALL CONTACT DIG SAFE (888-344-7233) PRIOR TO ANY CONSTRUCTION. 2. PROPERTY LINE INFORMATION IS BASED ON A PLAT ENTITLED "PLAT OF SURVEY DONALD & LOIS KERWIN" DATED 2018 PREPARED BY CIVIL ENGINEERING ASSOCIATES INC . THIS PLAN IS NOT A BOUNDARY SURVEY AND IS NOT INTENDED TO BE USED AS ONE. MONUMENTATION RECOVERED IS CONSISTENT WITH RECORDED DOCUMENTS. 3. SITE INFORMATION IS BASED ON A FIELD SURVEY PERFORMED BY CIVIL ENGINEERING ASSOCIATES, INC DECEMBER 2018. CIVIL ENGINEERING ASSOCIATES, INC. SURVEY ORIENTATION IS "GRID NORTH", VERMONT COORDINATE SYSTEM OF 1983 (HORIZONTAL) AND NAVD88 (VERTICAL) ESTABLISHED FROM GPS OBSERVATIONS ON SITE. 4. CONTOUR INFORMATION IS BASED UPON LIDAR DATA FROM 2004. HORIZONTAL AND VERTICAL DATUM BASED ON VCS NAD 83 AND NAVD 88. LEGEND ST EXISTING CONTOUR EXISTING GRAVEL EXISTING PAVEMENT EXISTING STORM EXISTING WELL EXISTING SEWER MANHOLE EDGE OF BRUSH/WOODS APPROXIMATE SETBACK LINE APPROXIMATE PROPERTY LINE W S PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 SEP., 2020 9/02/20 DSM SKETCH 234 BOUTIN ROAD HINESBURG VERMONT 05403 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT 1/26/21 DSM PRELIMINARY FINAL EXISTING DECIDUOUS TREE EXISTING CONIFEROUS TREE 3/04/21 DSM REVISED PER CITY COMMENTS WETLANDS 6/28/21 DSM ADD CLASS III WETLAND DATA FD EXISTING FOUNDATION DRAIN P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-SITE.dwg, 10/26/2021 2:34:50 PM, gcarter WWWWGGGGGGGGG GGUE UE UE UE UE UE UEUE UE UE 200' UP SLOPE ISOLATIONS S S S S S S S WGGGGGGGG GGGETCETCETCETCETCETCETCETCETCETCETCETCSSSSSSSSSSSSS S S S S S S S 20'ETC ETC ETC ETC EXISTING BRICK PAVER WALKWAY 100' UP SLOPE ISOLATION 11'(10' MIN.)30' REAR YARD SETBACK & UTILITY EASEMENT S S S SMH RIM=432.6 INV. IN (8" S)=421.6 INV. OUT(8" N)=421.5 SMH RIM=423.4 INV. IN (8" S)=414.7 INV. OUT(8" N)=414.6 EX. 4" SDR 35 PVC SMH RIM=438.0 2 0 '100' DOWN SLOPE ISOLATION200' UP SL OPE IS OLATI O N 25' BUILD TO LINE 20' WIDE UTILITY EASEMENT 20' SEWER EASEMENT W EX. C/O EX. C/O EX. C/O INV.=423.7 UE12' WIDE DRIVEWAY MATCH EXISTING GRADE MATCH EXISTING GRADE MATCH EXISTING GRADE 12' WIDE DRIVEWAY 12' WIDE DRIVEWAY PROPOSED HOUSE PROPOSED HOUSE PROPOSED HOUSE PATIO PATIO PATIO 20' WIDE UTILITY EASEMENT NEW C/O 20' WIDE FOUNDATION DRAIN & WATER EASEMENT S PROPOSED 4" SDR 35 PVC SEWER SERVICE, 14" PER FOOT MIN. SLOPE 100' D O W N SL O P E ISOL A TI O N INV.=425.9 NEW C/O NEW C/O INV.=423.7±100' DOW N SL OPE ISOL ATI O N EXISTING WELL APPROXIMATE LOCATION OF EXISTING WASTEWATER DISPOSAL FIELD EXISTING 4" PVC SEWER SERVICE EXISTING 8" PVC SEWER MAINEX. 4" PVC EX. C/O TREE LIMITS TO BE RETAINED w/ FENCING (TYP.) EXISTING LOT 1 PROPOSED ELECTRICAL TRANSFORMER ABANDONED WASTEWATER DISPOSAL FIELD PROPOSED PROPERTY LINE (TYP.) PROPOSED LOT 3 PROPOSED LOT 4 CUT AND DAYLIGHT EXISTING FOUNDATION DRAINAGE LINE, INTO RAIN GARDEN (429.4±) PROPOSED LOT 2 200' DOWN SLOPE ISOLATIONPROPOSED 4" SDR 35 PVC MIN. SLOPE 14" PER FT. (TYP.) EX. GAS VALVE 200' U P S L O P E I S O L ATI O N W UEUEUE UEUEUEPROPOSED 1" ABS TUBING RATED FOR 1,000 PSI WATER SERVICE (TYP.) MAINTAIN MIN. VERTICAL SEPARATION DISTANCE NEW WELL PREVIOUSLY PERMITTED WELL PERMIT # WW-4-5329 FINISH GRADE (TYP.) W PROPOSED 3' x 3' CONC. PAD FOR HEAT PUMP w/ CONIFER TREE SCREENING (TYP.) EX. C/O 50' W E T L A N D BUF F E R FD FD FD FD EXISTING GR A V E L D R I V E W A Yn/fB. GARDNERn/fH.&M. DUBOISEX. SHED 10' SIDE YARD SETBACK & UTILITY EASEMENT VERMONT ROUTE 116 / HINESBURG ROADHIGHLAND TERRACEN/F S. & S. MCALLISTER n/f FARLEY LIVING TRUST H.&M. DUBOIS D. & L. KERWIN EX. BUILDINGEXISTING BUILDING 432 434 436 438 442 4 4 4 44 6 448 4 3 4 4 3 6 438432 4 3 4 424 4 2 6 428 4344 3 2 42 6 440 430 430 W426428430428 430 432432430 4 3 4 WCLASS III WETLAND 429 430 430 PROPOSED RAIN GARDEN GRASS LINED EMERGENCY OVERFLOW ELEV.=428.9 +429.5± FFE = 430.7± FFE CONC. = 429.2± +429.1 +4 2 8 . 7 430.2 +430.2 +429.9+429.9 +FFE = 432.2± FFE CONC. = 430.7± FFE = 434.4± FFE CONC. = 432.9± 4 2 9 . 4+429.0 +431.7 +431.7 +431.4+431.4 +4 3 1 . 1+430.5 ++ 433.9+ 433.6+ 433.6432.7++432.7+43 2 . 3 +430.6+430.65+430.6432.5 +433.9 ++427.2±+ 426.5±+ 429.0±+431.3±+ 430.7±+432.6+428. 9 DSM DSM GAC 1" = 20' 18232 C1.2 SEP., 2020 LOCATION MAP 1" = 2000' DONALD & LOIS KERWIN KERWIN SUBDIVISION PROPOSED CONDITIONS SITE PLAN A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com 1. UTILITIES SHOWN DO NOT PURPORT TO CONSTITUTE OR REPRESENT ALL UTILITIES LOCATED UPON OR ADJACENT TO THE SURVEYED PREMISES. EXISTING UTILITY LOCATIONS ARE APPROXIMATE ONLY. THE CONTRACTOR SHALL FIELD VERIFY ALL UTILITY CONFLICTS. ALL DISCREPANCIES SHALL BE REPORTED TO THE ENGINEER. THE CONTRACTOR SHALL CONTACT DIG SAFE (888-344-7233) PRIOR TO ANY CONSTRUCTION. 2. ALL EXISTING UTILITIES NOT INCORPORATED INTO THE FINAL DESIGN SHALL BE REMOVED OR ABANDONED AS INDICATED ON THE PLANS OR DIRECTED BY THE ENGINEER. 3. THE CONTRACTOR SHALL MAINTAIN AS-BUILT PLANS (WITH TIES) FOR ALL UNDERGROUND UTILITIES. THOSE PLANS SHALL BE SUBMITTED TO THE OWNER AT THE COMPLETION OF THE PROJECT. 4. THE CONTRACTOR SHALL REPAIR/RESTORE ALL DISTURBED AREAS (ON OR OFF THE SITE) AS A DIRECT OR INDIRECT RESULT OF THE CONSTRUCTION. 5. ALL GRASSED AREAS SHALL BE MAINTAINED UNTIL FULL VEGETATION IS ESTABLISHED. 6. MAINTAIN ALL TREES OUTSIDE OF CONSTRUCTION LIMITS. 7. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL WORK NECESSARY FOR COMPLETE AND OPERABLE FACILITIES AND UTILITIES. 8. THE CONTRACTOR SHALL SUBMIT SHOP DRAWINGS FOR ALL ITEMS AND MATERIALS INCORPORATED INTO THE SITE WORK. WORK SHALL NOT BEGIN ON ANY ITEM UNTIL SHOP DRAWING APPROVAL IS GRANTED. 9. IN ADDITION TO THE REQUIREMENTS SET IN THESE PLANS AND SPECIFICATIONS, THE CONTRACTOR SHALL COMPLETE THE WORK IN ACCORDANCE WITH ALL PERMIT CONDITIONS AND ANY LOCAL PUBLIC WORKS STANDARDS. 10. THE TOLERANCE FOR FINISH GRADES FOR ALL PAVEMENT, WALKWAYS AND LAWN AREAS SHALL BE 0.1 FEET. 11. ANY DEWATERING NECESSARY FOR THE COMPLETION OF THE SITEWORK SHALL BE CONSIDERED AS PART OF THE CONTRACT AND SHALL BE THE CONTRACTOR'S RESPONSIBILITY. 12. THE CONTRACTOR SHALL COORDINATE ALL WORK WITHIN TOWN ROAD R.O.W. WITH TOWN AUTHORITIES. 13. THE CONTRACTOR SHALL INSTALL THE ELECTRICAL, CABLE AND TELEPHONE SERVICES IN ACCORDANCE WITH THE UTILITY COMPANIES REQUIREMENTS. 14. EXISTING PAVEMENT AND TREE STUMPS TO BE REMOVED SHALL BE DISPOSED OF AT AN APPROVED OFF-SITE LOCATION. ALL PAVEMENT CUTS SHALL BE MADE WITH A PAVEMENT SAW. 15. IF THERE ARE ANY CONFLICTS OR INCONSISTENCIES WITH THE PLANS OR SPECIFICATIONS, THE CONTRACTOR SHALL CONTACT THE ENGINEER FOR VERIFICATION BEFORE WORK CONTINUES ON THE ITEM IN QUESTION. 16. PROPERTY LINE INFORMATION IS APPROXIMATE AND BASED ON EXISTING TAX MAP INFORMATION. THIS PLAN IS NOT A BOUNDARY SURVEY AND IS NOT INTENDED TO BE USED AS ONE. 17. THE CONTRACTOR IS RESPONSIBLE FOR OBTAINING TESTING AND INSPECTION SERVICES INDICATED IN THE CONTRACT DOCUMENTS, TYPICAL FOR CONCRETE AND SOIL TESTING. 18. THE CONTRACTOR IS RESPONSIBLE FOR ALL LAYOUT AND FIELD ENGINEERING REQUIRED FOR COMPLETION OF THE PROJECT. CIVIL ENGINEERING ASSOCIATES WILL PROVIDE AN AUTOCAD FILE WHERE APPLICABLE. 19. THE OWNER SHALL BE RESPONSIBLE FOR THE INSTALLATION OF ANY AND ALL SAFETY FENCES OR RAILS ABOVE EXISTING AND PROPOSED WALLS. THE OWNER SHALL VERIFY LOCAL, STATE AND INSURANCE REQUIREMENT GUIDELINES FOR THE INSTALLATION AND VERIFY ANY AND ALL PERMITTING REQUIREMENTS. GENERAL NOTES PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 W ST S W E PROPOSED GRAVEL PROPOSED SWALE PROPOSED ELECTRIC PROPOSED STORM PROPOSED GRAVITY SEWER PROPOSED WATER PROPOSED WELL S PROPOSED SEWER MANHOLE D PROPOSED STORM MANHOLE PROPOSED CATCH BASIN REBAR SET PROPOSED SHUT OFF PROPOSED UTILITY POLE PROPOSED EDGE OF BRUSH/WOODS PROPOSED SETBACK LINE PROPOSED PROPERTY LINE PROPOSED YARD DRAIN LEGEND ETC G ST S W EXISTING CONTOUR EXISTING FENCE EXISTING GRAVEL EXISTING SWALE EX. ELEC., TEL. & CABLE EXISTING GAS EXISTING STORM EXISTING GRAVITY SEWER EXISTING WATER EXISTING WELL EXISTING SEWER MANHOLE EXISTING UTILITY POLE EDGE OF BRUSH/WOODS APPROXIMATE SETBACK LINE APPROXIMATE PROPERTY LINE IRON ROD/PIPE FOUND W S EXISTING PAVEMENT EXISTING DECIDUOUS TREE EXISTING CONIFEROUS TREE EXISTING SHUT OFF X TREE TO BE REMOVED APPROXIMATE EASEMENT LINE PROPOSED EASEMENT LINE WETLANDS FD EXISTING FOUNDATION DRAIN FD PROPOSED FOUNDATION DRAIN 9/02/20 DSM SKETCH 234 BOUTIN ROAD HINESBURG VERMONT 05403 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT 1/26/21 DSM PRELIMINARY FINAL 3/04/21 DSM REVISED PER CITY COMMENTS 3/16/21 DSM REVISED PER CITY COMMENTS 4/21/21 DSM REVISED PER STATE COMMENTS 6/28/21 DSM ADD CLASS III WETLAND DATA 9/20/21 DSM REVISED PER CITY COMMENTS 10/04/21 DSM RAIN GARDEN / REV. DRIVEWAYS 10/26/21 DSM REVISED CULVERTS / DRIVEWAYS P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-SITE.dwg, 11/2/2021 10:37:45 AM, gcarter GGGGGGGGGGGGGGGGGGGGGGETCETCETCETCETCETCETCETCETCETCETCETCETC ETC ETC ETC EXISTING BRICK PAVER WALKWAY S S S SMH RIM=432.6 INV. IN (8" S)=421.6 INV. OUT(8" N)=421.5 SMH RIM=423.4 INV. IN (8" S)=414.7 INV. OUT(8" N)=414.6 SMH RIM=438.0 PROPOSED HOUSE PROPOSED HOUSE PROPOSED HOUSE TREE LIMITS TO BE RETAINED w/ FENCING (TYP.) EXISTING LOT 1 EX. GAS VALVE TEMPORARY STOCKPILE LOCATION FOR PROJECT APPROXIMATE AREAS OF DISTURBANCE = 0.95± AC. LIMITS OF DISTURBANCE INSTALL SILT FENCE, SEE DETAIL, SHEET C3.0 (TYP.) LIMITS OF DISTURBANCE 50' W E T L A N D BUF F E R EXISTING GR A V E L D R I V E W A Yn/fB. GARDNERn/fH.&M. DUBOISEX. SHED VERMONT ROUTE 116 / HINESBURG ROADHIGHLAND TERRACEN/F S. & S. MCALLISTER n/f FARLEY LIVING TRUST H.&M. DUBOIS D. & L. KERWIN EX. BUILDINGEXISTING BUILDING 432 434 436 438 442 4 4 4 44 6 448 4 3 4 4 3 6 438432 4 3 4 424 4 2 6 428 4344 3 2 42 6 440 430 430 426428430428 430 432432430 4 3 4 X X X XX XX X X X X X XX X XX X X X X X X CLASS III WETLAND 429 430 430 INSTALL STABILIZED CONSTRUCTION ENTRANCE(S) TO NEW CONSTRUCTION AREA +429.5± FFE = 430.7± FFE CONC. = 429.2± +429.1 +4 2 8 . 7 430.2 +430.2 +429.9+429.9 +FFE = 432.2± FFE CONC. = 430.7± FFE = 434.4± FFE CONC. = 432.9± 4 2 9 . 4+429.0 +431.7 +431.7 +431.4+431.4 +4 3 1 . 1+430.5 ++ 433.9+ 433.6+ 433.6432.7++432.7+43 2 . 3 +430.6+430.65+430.6432.5 +433.9 ++427.2±+ 426.5±+ 429.0±+431.3±+ 430.7±+432.6+428. 9 DSM DSM BRR/GAC 1" = 20' 18232 C1.3 LOCATION MAP 1" = 2000' DONALD & LOIS KERWIN KERWIN SUBDIVISION PROPOSED EPSC PLAN A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 W ST S W E PROPOSED GRAVEL PROPOSED SWALE PROPOSED ELECTRIC PROPOSED STORM PROPOSED GRAVITY SEWER PROPOSED WATER PROPOSED WELL S PROPOSED SEWER MANHOLE D PROPOSED STORM MANHOLE PROPOSED CATCH BASIN REBAR SET PROPOSED SHUT OFF PROPOSED UTILITY POLE PROPOSED EDGE OF BRUSH/WOODS PROPOSED SETBACK LINE PROPOSED PROPERTY LINE PROPOSED YARD DRAIN LEGEND ETC G ST S W EXISTING CONTOUR EXISTING FENCE EXISTING GRAVEL EXISTING SWALE EX. ELEC., TEL. & CABLE EXISTING GAS EXISTING STORM EXISTING GRAVITY SEWER EXISTING WATER EXISTING WELL EXISTING SEWER MANHOLE EXISTING UTILITY POLE EDGE OF BRUSH/WOODS APPROXIMATE SETBACK LINE APPROXIMATE PROPERTY LINE IRON ROD/PIPE FOUND W S EXISTING PAVEMENT EXISTING DECIDUOUS TREE EXISTING CONIFEROUS TREE EXISTING SHUT OFF X TREE TO BE REMOVED APPROXIMATE EASEMENT LINE PROPOSED EASEMENT LINE WETLANDS FD EXISTING FOUNDATION DRAIN FD PROPOSED FOUNDATION DRAIN SEP., 2020 9/02/20 DSM SKETCH 234 BOUTIN ROAD HINESBURG VERMONT 05403 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT 1/26/21 DSM PRELIMINARY FINAL 3/04/21 DSM REVISED PER CITY COMMENTS 3/16/21 DSM REVISED PER CITY COMMENTS 6/28/21 DSM ADD CLASS III WETLAND DATA 9/20/21 DSM REVISED PER CITY COMMENTS 10/26/21 DSM REVISED CULVERTS / DRIVEWAYS P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-SITE.dwg, 11/2/2021 10:37:05 AM, gcarter GGGGGGGGGGGWGGGGGGGG GGGETCETCETCETCETCETCETCETCETCETCETCETCETC ETC ETC ETC EXISTING BRICK PAVER WALKWAY S S S SMH RIM=432.6 INV. IN (8" S)=421.6 INV. OUT(8" N)=421.5 SMH RIM=423.4 INV. IN (8" S)=414.7 INV. OUT(8" N)=414.6 SMH RIM=438.0 W EXISTING WELL EXISTING LOT 1 EX. GAS VALVE 50' W E T L A N D BUF F E R FD FD FD FD EXISTING GR A V E L D R I V E W A Yn/fB. GARDNERn/fH.&M. DUBOISEX. SHED VERMONT ROUTE 116 / HINESBURG ROADHIGHLAND TERRACEN/F S. & S. MCALLISTER n/f FARLEY LIVING TRUST D. & L. KERWIN EX. BUILDINGEXISTING BUILDING WOODS WOODS432 434 436 438 442 4 4 4 44 6 448 4 3 4 4 3 6 438432 4 3 4 424 4 2 6 428 4344 3 2 42 6 44 0 430 8" POPLAR 12" POPLAR 10" POPLAR 8" DECIDUOUS 12" BIRCH 8" BIRCH 12" DECIDUOUS 8" BIRCH 18" OAK 3 BOLE 12" ~ 18" OAK 8" SPRUCE 16" PINE 12" MAPLE 12" DECID. 18" MAPLE 14" PINE (2) 14" PINE 20" PINE 3 BOLE 8" ~ 14" DECIDUOUS10" DECIDUOUS 3 BOLE 8" ~ 16" DECIDUOUS 24" PINE 10" MAPLE 8" MAPLE 12" SPRUCE 10" CEDAR 24" PINE (2) 8" OAK 8" DECIDUOUS 16" DECIDUOUS 24" MAPLE 12" MAPLE 10" MAPLE 10" MAPLE 18" MAPLE 12" PINE 10" CEDAR 12" MAPLE 14" MAPLE 2 BOLE 6", 8" MAPLE 12" APPLE 4 BOLE 4", (3) 8" MAPLE 2 BOLE 10", 14" MAPLE 14" MAPLE 2 BOLE 10", 12" MAPLE 30" PINE 20" PINE 8" APPLE 12" PINE 8" APPLE 6" APPLE 6" APPLE 10" BIRCH 12" BIRCH DEAD DISEASED 10" BIRCH 8" BIRCH 10" BIRCH 8" OAK 12" BIRCH 8" OAK 10" OAK 6" OAK 6" OAK (3) 6" OAK 8" PINE CLUSTER (6) 6" - 10" BIRCH CLASS III WETLAND DSM BRR MAB 1" = 20' 18232 C1.11 LOCATION MAP 1" = 2000' EXISTING CONDITIONS SITE PLAN A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com DONALD & LOIS KERWIN DONALD & LOIS KERWIN KERWIN SUBDIVISION LEGEND ST EXISTING CONTOUR EXISTING GRAVEL EXISTING PAVEMENT EXISTING STORM EXISTING WELL EXISTING SEWER MANHOLE EDGE OF BRUSH/WOODS APPROXIMATE SETBACK LINE APPROXIMATE PROPERTY LINE W S PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 MAR., 2021 234 BOUTIN ROAD HINESBURG VERMONT 05403 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT EXISTING DECIDUOUS TREE EXISTING CONIFEROUS TREE WETLANDS 6/28/21 DSM ADD CLASS III WETLAND DATA FD EXISTING FOUNDATION DRAIN P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-SITE.dwg, 10/26/2021 2:34:17 PM, gcarter A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com C2.0 LOCATION MAP 1" = 2000' DETAILS DSM DSM GAC AS SHOWN 18232 SEP., 2020 DONALD & LOIS KERWIN 234 BOUTIN ROAD HINESBURG VERMONT 05403 KERWIN SUBDIVISION 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 N.T.S. TYPICAL GRAVEL SURFACE SECTION S-004S-004 Gravel Sec12" DENSE GRADED SUBBASE 6" CRUSHED GRAVEL (FINE) SEPARATION GEOTEXTILE COMPACTED SUBGRADE REVISED 11/10/2014 3 1 OR AS SHOWN ON PLANS 4" MINIMUM TOPSOIL, SEED AND MULCH ALL SIDESLOPE - USE EROSION MATTING (WHEN REQUIRED) TO ESTABLISH VEGETATION, PARTICULARLY ON LOW SIDE OF ROADWAY NOTES: PAVED N.T.S. D D+2' 6" 6" TYPICAL SEWER TRENCH DETAIL5'-0" MIN. COVER (PLOWED AREAS)4'-0" MIN. COVER (TYPICAL)6" 1. COMPACTION OF BACKFILL AND BEDDING SHALL BE A MINIMUM OF 90% (95% UNDER ROADWAY SURFACES) OF MAXIMUM DRY DENSITY DETERMINED IN THE STANDARD PROCTOR TEST (ASTM D698). 2. BEDDING MATERIAL SHALL NOT BE PLACED ON FROZEN SUBGRADE. 3. APPROVED BACKFILL SHALL NOT CONTAIN ANY STONES MORE THAN 12" IN LARGEST DIMENSION (6" IN ROADWAYS, 1 1/2"" MAXIMUM DIAMETER WITHIN 24" OF THE OUTSIDE OF THE PIPE), OR CONTAIN ANY FROZEN, WET, OR ORGANIC MATERIAL. 4. TRENCHES SHALL BE COMPLETELY DEWATERED PRIOR TO PLACING OF PIPE BEDDING MATERIAL AND KEPT DEWATERED DURING INSTALLATION OF PIPE AND BACKFILL. 5. IN TRENCHES WITH UNSTABLE MATERIALS OR HIGH WATER TABLE, TRENCH BOTTOM SHALL FIRST BE STABILIZED BY PLACEMENT OF FILTER FABRIC THEN CRUSHED STONE (3/4" MAXIMUM). 6. THE SIDES OF TRENCHES 4' OR MORE IN DEPTH ENTERED BY PERSONNEL SHALL BE SHEETED OR SLOPED TO THE ANGLE OF REPOSE AS DEFINED BY O.S.H.A. STANDARDS. 7. BEDDING MATERIAL FOR WASTEWATER LINES SHALL CONSIST OF CRUSHED STONE, GRAVEL, OR SAND WITH A MAXIMUM SIZE OF 34". SUBMIT A SAMPLE TO THE ENGINEER FOR APPROVAL. 8. ALL JOINTS TO BE INSPECTED BY OWNER/ENGINEER/TOWN PRIOR TO BACKFILL. APPROVED BACKFILL THOROUGHLY COMPACTED IN 8" LIFTS 2" RIGID INSULATION WHEN DEPTH OF PIPING IS LESS THAN MINIMUM NOTED 4" WIDE MAGNETIC "SEWER" TAPE INSTALLED APPROX. 2' BELOW SURFACE SEWER LINE, SEE PLAN FOR TYPE AND SIZE PIPE BEDDING UNDISTURBED SOIL OR ROCK TOPSOIL, RAKE, SEED & MULCH UNPAVED REVISED 12/08/2016SWR-001SWR-001 Trench(SEE SITE PLAN)5'-0" MIN. COVER OVER FORCE MAINSN.T.S. SEWER SERVICE CONNECTION REVISED 08/01/2014SWR-003 PLANELEVATION FLOW USE 4"x8' PVC PIPE TO MARK LOCATION AND DEPTH OF SERVICE CONNECTION. EXTEND FROM PLUG TO 6" MIN. ABOVE FINISH GRADE. - CONTRACTOR TO PROVIDE 3 LOCATION TIES TO END OF LATERAL TO BE INCLUDED ON "AS-BUILT" DRAWINGS. (IF CONSTRUCTION IS NOT CONCURRENT WITH LATERAL) - SEE TYPICAL TRENCH FOR BEDDING AND BACKFILL REQUIREMENTS. 4" 22 12° OR 45° ELBOW ROTATED AS REQUIRED SEWER MAIN EXISTING SEWER MAIN 4" 22 12° OR 45° ELBOW ROTATED AS REQUIRED 4" MIN. SDR 35 PVC SEWER SERVICE, CONTINUE AS PER PLAN AND INSTALL PVC CAP. SEE SITE PLAN FOR SLOPE AND ELEVATIONS (MIN. SLOPE = 1/4" PER FT.) 45° WYE SADDLE CONNECTION (COORDINATE PREFERRED CONNECTOR w/PUBLIC WORKS DEPARTMENT) (@ EXISTING SEWER MAIN) STAINLESS STEEL CLAMP SWR-003 Service Con-EXN.T.S. TYPICAL CLEANOUT DETAIL REVISED 8/28/2017SWR-007BSWR-007B COCONCRETE CRADLE w/ 3 MIL POLYETHYLENE PLACED BETWEEN PIPE & CONCRETE 4" SDR 35 PVC 45° ELBOW FLOW *CLEANOUT TO BE INSTALLED AT INTERVALS OF NOT MORE THAN 100 FEET, AND UPSTREAM OF BEND(S) IN BUILDING SEWER(S) WHEN CHANGE IN DIRECTION EXCEEDS 45° (USE LONG SWEEP FITTINGS WHEN EXCEEDING 45°) GRASS PAVEMENT CLEANOUT BOX INDEPENDENT OF PIPE PVC CAP 6" D.I. VALVE BOX TOP SECTION w/ COVER MARKED "CLEANOUT" (CONTACT ENGINEER FOR ANY CLARIFICATIONS OR CONFLICTS) MINIMUM ISOLATION DISTANCES REVISED 08/01/2014SWR-100WR-100 Sewer IsoHorizontal Distance (Feet) Leach field Septic Tank Sewer 1. Isolation distances to well locations may vary due to site conditions - contact Engineer for verification with the Vermont Water Supply Rule Regulations. 2. For mound disposal systems, the limit of mound fill must be 25 feet from any downhill property line and 10 feet from side or uphill property lines. 3. If a curtain or foundation drain is downslope of the leach field, the leach field cannot be closer than 75 feet to the drain. If the drain is upslope of the leach field, it shall be 35' if possible and 20' minimum. 4. Sewers under roads, driveways or parking lots may require protective conduits or sleeves. Drilled Well Serving 1 Home - Up Slope of Disposal Field Drilled Well Serving 1 Home - Down Slope of Disposal Field Shallow Well or Spring, Up Slope of Disposal Field Shallow Well or Spring, Down Slope of Disposal Field Lakes, Ponds and Impoundment Rivers, Streams Drainage Swales, Roadway Ditches Municipal Water Main Service Water Lines Roadways, Driveways, Buildings Top of embankment or slope > 30% Property Line Trees Replacement Area Foundation, Footing Drains 50 50 75 75 25 25 - 50 25 5 10 10 10 - 10 50 50 75 75 25 10 - 10 10 5 - 10 10 - - 100 (Min.) 200 (Min.) 150 (Min.) 500 (Min.) 50 50 25 50 25 10 25 10 (25 Downslope) 10 10 35 (75 Downslope) NTS Typical House Access Road W 50' MIN. ISOLATIONFROM SEWER SYSTEM1" ABS TUBING, PRESSURE RATED FOR 100 psi (10' MIN. FROM SEWER PIPING) PROPOSED WELL 4" PVC 8"x4" SCH. 80 PVC WYE & 45° ELBOW SINGLE FAMILY LOT WATER/SEWER ISOLATION PLANN.T.S. TREE PROTECTION - FENCING REVISED 2/12/2015L-006L-006 Tree ProtectionEXISTING GRADE DRIP LINE FENCE NOTES: 1. THIS FENCE SHALL BE LOCATED OUTSIDE THE DRIP LINE OF THE TREE TO BE SAVED AND IN NO CASE CLOSER THAN 5' TO THE TRUNK OF ANY TREE. 2. FENCE POST SHALL BE STANDARD STEEL POSTS OR WOOD POSTS WITH A MINIMUM CROSS SECTIONAL AREA OF 3.0 SQ. IN. 3. THE FENCE MAY BE EITHER 40" HIGH SNOW FENCE, 40" PLASTIC WEB FENCING OR ANY OTHER MATERIAL AS APPROVED BY THE ENGINEER.. 9/2/20 DSM SKETCH 1/26/21 DSM PRELIMINARY FINAL 3/04/21 DSM REVISED PER CITY COMMENTS 10/26/21 DSM REVISED CULVERTS / DRIVEWAYS P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 10/26/2021 2:40:43 PM, gcarter C2.1 LOCATION MAP 1" = 2000' DETAILS A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com DSM DSM GAC AS SHOWN 18232 SEP., 2020 DONALD & LOIS KERWIN 234 BOUTIN ROAD HINESBURG VERMONT 05403 KERWIN SUBDIVISION 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 N.T.S. DRILLED WELL DETAIL REVISED 08/01/2014W-010W-010 Drilled WellNOTE: THE WELL SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE VERMONT WATER SUPPLY RULE - CHAPTER 21 (PART II SMALL SCALE WATER SUPPLY SYSTEMS) DEPTH OF WELL DESIGN BASIS: AVERAGE DAILY DEMAND = 600 GALLONS (4 BEDROOMS @ 150 GPD) MAXIMUM DAY DEMAND 600 GPD/720 MIN. = 0.8 GPM INSTANTANEOUS PEAK DEMAND = 5 GPM (RESIDENTIAL UNIT) REQUIRED MINIMUM SEPARATION DISTANCES FOR WELLS POTENTIAL SOURCE OF CONTAMINATION SEPARATION DISTANCE AND OTHNER SITING LIMITATIONS Roadway, Parking Lot (outer edge of shoulder) 25' Driveway (<3 Residences) 15' Subsurface Wastewater Piping and Related Tanks 50' Property Line 10' Surface Water 10' Flood Ways NOT ALLOWED Concentrated Livestock Holding Area 200' and Manure Storage Systems0.624"5'-6" MIN.SUBMERSIBLE PUMP w/ CHECK VALVE @ DISCHARGE CONNECTION 6" CASING (19#/FT) TO 6"Ø HOLE TO BEDROCK (USE NEAT GROUT CEMENT TO GROUT CASING) PITLESS ADAPTER ELECTRICAL SERVICE CONDUIT VENTED SANITARY WELL CAP WATER LINE TO HOUSE N.T.S. GRASS LINED DITCH REVISED 10/07/2015ST-014ST-014 Grass Ditch1 3 1 3 EXISTING GRADE TOPSOIL EROSION CONTROL MATTING IN DITCHES w/ PROFILE GRADES EXCEEDING 5%. STAPLE AS PER MANUF. SPECS. 12" MIN. 2' MIN. WIDTH N.T.S. ELECTRICAL TRENCH - SECONDARY REVISED 08/01/2014M-008M-008 Elec Trench Secondary24" MIN.24" MIN. 12" MIN. APPROVED BACKFILL THOROUGHLY COMPACTED IN 8" LIFTS ELECTRICAL CABLE MARKING TAPE SHALL BE PLACED 8" TO 12" BELOW FINISH GRADE TELEPHONE CABLE MIN. 4" SAND OR FINE GRAVEL ON ALL SIDES OF CONDUIT ELECTRICAL CONDUIT NOTES: N.T.S. TYPICAL STORM TRENCH REVISED 12/08/2016ST-003 D+2'ST-003 Storm TrenchPAVED 6" 6"COVER PER PLANAPPROVED BACKFILL THOROUGHLY COMPACTED IN 8" LIFTS STORM LINE, SEE PLAN FOR TYPE AND SIZE PIPE BEDDING UNDISTURBED SOIL OR ROCK TOPSOIL, RAKE, SEED & MULCH UNPAVED 1. COMPACTION OF BACKFILL AND BEDDING SHALL BE A MINIMUM OF 90% (95% UNDER ROADWAY SURFACES) OF MAXIMUM DRY DENSITY DETERMINED IN THE STANDARD PROCTOR TEST (ASTM D698). 2. BEDDING MATERIAL SHALL NOT BE PLACED ON FROZEN SUBGRADE. 3. APPROVED BACKFILL SHALL NOT CONTAIN ANY STONES MORE THAN 12" IN LARGEST DIMENSION (6" IN ROADWAYS, 1 1/2"" MAXIMUM DIAMETER WITHIN 24" OF THE OUTSIDE OF THE PIPE), OR CONTAIN ANY FROZEN, WET, OR ORGANIC MATERIAL. 4. TRENCHES SHALL BE COMPLETELY DEWATERED PRIOR TO PLACING OF PIPE BEDDING MATERIAL AND KEPT DEWATERED DURING INSTALLATION OF PIPE AND BACKFILL. 5. IN TRENCHES WITH UNSTABLE MATERIALS OR HIGH WATER TABLE, TRENCH BOTTOM SHALL FIRST BE STABILIZED BY PLACEMENT OF FILTER FABRIC THEN CRUSHED STONE (3/4" MAXIMUM). 6. THE SIDES OF TRENCHES 4' OR MORE IN DEPTH ENTERED BY PERSONNEL SHALL BE SHEETED OR SLOPED TO THE ANGLE OF REPOSE AS DEFINED BY O.S.H.A. STANDARDS. 7. BEDDING MATERIAL SHALL CONSIST OF CRUSHED STONE, GRAVEL, OR SAND WITH A MAXIMUM SIZE OF 34". SUBMIT A SAMPLE TO THE ENGINEER FOR APPROVAL. D 9/2/20 DSM SKETCH NOTES: 1. INTERIOR JOINTS SHALL NOT BE GROUTED. 2. IF DEPTH OF MANHOLE IS 7' OR LESS FROM RIM TO CENTERLINE INVERT, THEN A FLAT TOP SHOULD BE SUBSTITUTED FOR THE CONE SECTION. 3. CENTERLINE INVERT ELEVATION IF SHOWN ON THE PLAN IS THE AVERAGE INVERT IN THE MANHOLE. THE INLET IN SHALL BE 0.05 FEET HIGHER AND THE INLET OUT SHALL BE 0.05 FEET LOWER. 4. PRECAST RISER AND BASES FOR MANHOLES SHALL CONFORM TO ASTM SPEC C-478. 2'-0" MIN. RADIUS N.T.S. TYPICAL SANITARY SEWER MANHOLE REVISED 1/29/2015SWR-004 SLOPE SLOPE 90° MAX. PLAN FINISH GRADE OPENING AS REQUIRED 48" 1" RISE ELEVATIONSECTIONBARREL4"8"BASE AS REQ'D.CONE SECTIOND/2 MAX.0.6DD MANHOLE WALLMANHOLE OPENING ABOVE 24" LEBARON FRAME & COVER LC266 TYPE C OR EQUAL, ADJUST TO MEET FINISH GRADE AFTER PAVEMENT BASE COURSE HAS BEEN INSTALLED. SET FRAME ON FULL MORTAR BED & SEAL JOINT (VERIFY WITH MUNICIPALITY / ENGINEER USE OF RUBBER GRADE RINGS W/ MASTIC IN PLACE OF FULL MORTAR BED) ADJUST TO GRADE (10" MAX.) WITH PRECAST RISER SECTIONS USING THE LEAST NUMBER OF RISERS THAT ARE COMMERCIALLY AVAILABLE. MASTIC SHOULD BE USED TO SEAL BETWEEN CONCRETE RISERS. WHERE THE ROAD HAS A SLOPE, ANGLED RUBBER GRADE RINGS SHALL BE USED PER THE MANUFACTURER'S RECOMMENDATIONS. POLYPROPYLENE MANHOLE STEPS @ 8" O.C. WATERTIGHT JOINTS USING MASTIC BUTYL JOINT COAT EXTERIOR OF ENTIRE MANHOLE WITH A WATERTIGHT SEALANT (2 COATS) CAST IN PLACE FLEXIBLE MH SLEEVES OR APPROVED EQUAL (TYP. ALL PIPES) USE 3' (MAX.) STUBS AT ALL MANHOLE PIPE CONNECTIONS CLASS A CONCRETE BASE OR APPROVED PRECAST CONCRETE BASE 6" MIN. CRUSHED STONE BEDDING 12" MIN. UNDISTURBED SOIL OR ROCK CLASS B CONCRETE SHELF AND INVERT CHANNEL SWR-004 Typ MH1/26/21 DSM PRELIMINARY FINAL N.T.S. WATER/SEWER CROSSING REVISED 6/15/2015W-007W-007 Water-Sewer CrossingWATER MAIN PROFILE VIEW18"MIN.18"MIN.GRAVITY SEWER OR FORCE MAIN (JOINTS TO BE ENCASED) GRAVITY SEWER OR FORCE MAIN PLAN VIEW WATER MAIN SEWER MAIN10' MIN.10' MIN.10' MIN.10' MIN.SINGLE 20' LENGTH OF WATER QUALITY PIPE ENCASEMENT IF SEPARATION IS BETWEEN 12" TO 18" THE GRAVITY SEWER or FORCE MAIN JOINTS SHALL BE CONCRETE ENCASED WHEN LOCATED ABOVE THE WATER MAIN REFERENCE: VT. WATER SUPPLY RULE CHAPTER 21, APPENDIX A, SECTION 8.6 NOTES: 1. AT CROSSINGS, ONE FULL LENGTH OF WATER/STORM PIPE SHALL BE LOCATED SO BOTH JOINTS WILL BE AS FAR FROM THE WATER/STORM AS POSSIBLE. 2. IF THE STORM MAIN IS OVER THE WATER MAIN, THE FIRST STORM PIPE JOINTS ON EACH SIDE OF THE WATER MAIN MUST BE CONCRETE ENCASED. SPECIAL STRUCTURAL SUPPORT FOR THE WATER AND STORM PIPES MAY BE REQUIRED. 3. WHERE IT IS IMPOSSIBLE TO MAINTAIN THE 18" SEPARATION, THE STORM MATERIALS SHALL BE WATER MAIN PIPE OR EQUIVALENT AND SHALL BE PRESSURE TESTED TO WATER MAIN STANDARDS. 4. WATER MAINS AND STORM LINES OR MANHOLES SHALL HAVE AT LEAST 5' HORIZONTAL SEPARATION. THIS DISTANCE SHALL BE MEASURED EDGE TO EDGE. N.T.S. WATER/STORM CROSSING REVISED 12/23/2014W-007AW-007A Water-Storm CrossingL/2 POINT OF CROSSING JOINT MINIMUM 18" SEPARATION BETWEEN OUTSIDE OF PIPES WATER OR STORM LINE L/2 L/2 L/2 WATER OR STORM LINE 3/01/21 DSM PER CITY COMMENTS N.T.S. RAIN GARDEN REVISED 2/03/2017ST-031ST-031 RAIN GARDENWIDTH (5' MIN.) 3:1 SIDE SLOPE MAX. TYP.NATIVE PLANTS PER LANDSCAPE ARCHITECT/DESIGNER BERM AS NEEDED COMPACT STRUCTURAL FILL EXISTING GRADE 2-3" MULCH UNDISTURED NATIVE SUBGRADE 6" PONDING DEPTH Infiltration Rain Garden Notes Design Notes: 1. Plant with plants per landscape architect drawings. Native plants are preferred, because non-native and invasive species can reproduce downstream to damage habitat and change hydrology. If non-natives are chosen, be sure that they will not damage downstream waterways. Construction Notes: 2.Build and vegetate rain garden as early as possible to establish plantings before directing stormwater runoff to it or divert stormwater around facility. Preferably, this period would last a minimum of 3 months or per landscape architect/designer guidelines. 3.Infiltration areas (the area of the rain garden as defined by the top elevation of the facility) shall be fenced off from the first day of earth moving until project completion to prevent compaction of the subgrade, dirt tracking onto any layer of the facility, and stockpiling of construction materials that may clog the surface. 4.During excavation of native soils to the bottom of the facility, rainfall may cause fines to clog the surface of the facility. If this occurs during construction, hand rake the surface to a depth of 3” to restore infiltration capacity. 5. Call the Civil Engineer, (Dave Marshall) at (802-864-2323) 24 hours in advance of constructing this facility so construction observation may be performed to identify variations in the field that may affect design and verify proper construction. 10/04/21 DSM RAIN GARDEN DETAIL P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 10/26/2021 2:42:46 PM, gcarter C3.0 LOCATION MAP 1" = 2000' EROSION CONTROL DETAILS & SPECIFICATIONS A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com DSM DSM GAC AS SHOWN 18232 SEP., 2020 DONALD & LOIS KERWIN 234 BOUTIN ROAD HINESBURG VERMONT 05403 KERWIN SUBDIVISION 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 E-001 EC SheetIntroduction This project is subject to the terms and conditions of the authorization from the State of Vermont to discharge construction related storm water runoff. Coverage under the State Construction General Permit 3-9020 is required for any construction activity that disturbs 1 or more acres of land, or is part of a larger development plan that will disturb 1 or more acres. This project has been deemed to qualify as a Low Risk Site which is subject to the erosion prevention and sediment control (EPSC) standards set for in the State of Vermont's Low Risk Site Handbook for Erosion Prevention and Sediment Control The following narrative and implementation requirements represent the minimum standard for which this site is required to be maintained as regulated by the State of Vermont. Any best management practices (BMP's) depicted on the project's EPSC Site plan which go beyond the Handbook requirements are considered to be integral to the management of the site and represent components of the municipal EPSC approval for the project which shall be implemented. The EPSC plan depicts one snap shot in time of the site. All construction sites are fluid in their day to day exposures and risks as it relates to minimizing sediment loss from the site. It is the responsibility of the Contractor to implement the necessary BMP's to comply with the Low Risk Handbook standards outlined on this sheet based on the interim site disturbance conditions which may or may not be shown on the EPSC Site Plan. Specific BMP's which are critical to allowing the project to be considered a Low risk site include the items checked below: ·Limit the amount of disturbed earth to two acres or less at any one time. ·There shall be a maximum of 7 consecutive days of disturbed earth exposure in any location before temporary or final stabilization is implemented. 1. Mark Site Boundaries Purpose: Mark the site boundaries to identify the limits of construction. Delineating your site will help to limit the area of disturbance, preserve existing vegetation and limit erosion potential on the site. How to comply: Before beginning construction, walk the site boundaries and flag trees, post signs, or install orange safety fence. Fence is required on any boundary within 50 feet of a stream, lake, pond or wetland, unless the area is already developed (existing roads, buildings, etc.) 2. Limit Disturbance Area Purpose: Limit the amount of soil exposed at one time to reduce the potential erosion on site. Requirements: The permitted disturbance area is specified on the site's written authorization to discharge. Only the acreage listed on the authorization form may be exposed at any given time. How to comply: Plan ahead and phase the construction activities to ensure that no more than the permitted acreage is disturbed at one time. Be sure to properly stabilize exposed soil with seed and mulch or erosion control matting before beginning work in a new section of the site. 3. Stabilize Construction Entrance Purpose: A stabilized construction entrance helps remove mud from vehicle wheels to prevent tracking onto streets. Requirements: If there will be any vehicle traffic off of the construction site, you must install a stabilized construction entrance before construction begins. How to install Rock Size: Use a mix of 1 to 4 inch stone Depth: 8 inches minimum Width: 12 feet minimum Length: 40 feet minimum (or length of driveway, if shorter) Geotextile: Place filter cloth under entire gravel bed Maintenance: Redress with clean stone as required to keep sediment from tracking onto the street. 4. Install Silt Fence Purpose: Silt fences intercept runoff and allow suspended sediment to settle out. Requirements: Silt fence must be installed: ·on the downhill side of the construction activities ·between any ditch, swale, storm sewer inlet, or waters of the State and the disturbed soil * Hay bales must not be used as sediment barriers due to their tendency to degrade and fall apart. Where to place: ·Place silt fence on the downhill edge of bare soil. At the bottom of slopes, place fence 10 feet downhill from the end of the slope (if space is available). ·Ensure the silt fence catches all runoff from bare soil. ·Maximum drainage area is ¼ acre for 100 feet of silt fence. ·Install silt fence across the slope (not up and down hills!) ·Install multiple rows of silt fence on long hills to break up flow. ·Do not install silt fence across ditches, channels, or streams or in stream buffers. How to install silt fence: ·Dig a trench 6 inches deep across the slope ·Unroll silt fence along the trench ·Ensure stakes are on the downhill side of the fence ·Join fencing by rolling the end stakes together ·Drive stakes in against downhill side of trench ·Drive stakes until 16 inches of fabric is in trench ·Push fabric into trench; spread along bottom ·Fill trench with soil and pack down Maintenance: ·Remove accumulated sediment before it is halfway up the fence. ·Ensure that silt fence is trenched in ground and there are no gaps. 5. Divert Upland Runoff Purpose: Diversion berms intercept runoff from above the construction site and direct it around the disturbed area. This prevents clean water from becoming muddied with soil from the construction site. Requirements: If storm water runs onto your site from upslope areas and your site meets the following two conditions, you must install a diversion berm before disturbing any soil. 1. You plan to have one or more acres of soil exposed at any one time (excluding roads). 2. Average slope of the disturbed area is 20% or steeper. How to install: 1. Compact the berm with a shovel or earth-moving equipment. 2. Seed and mulch berm or cover with erosion control matting immediately after installation. 3. Stabilize the flow channel with seed and straw mulch or erosion control matting. Line the channel with 4 inch stone if the channel slope is greater than 20%. 4. Ensure the berm drains to an outlet stabilized with riprap. Ensure that there is no erosion at the outlet. 5. The diversion berm shall remain in place until the disturbed areas are completely stabilized. 6. Slow Down Channelized Runoff Purpose: Stone check dams reduce erosion in drainage channels by slowing down the storm water flow. Requirements: If there is a concentrated flow (e.g. in a ditch or channel) of storm water on your site, then you must install stone check dams. Hay bales must not be used as check dams. How to install: Height: No greater than 2 feet. Center of dam should be 9 inches lower than the side elevation Side slopes: 2:1 or flatter Stone size: Use a mixture of 2 to 9 inch stone Width: Dams should span the width of the channel and extend up the sides of the banks Spacing: Space the dams so that the bottom (toe) of the upstream dam is at the elevation of the top (crest) of the downstream dam. This spacing is equal to the height of the check dam divided by the channel slope. Spacing (in feet) = Height of check dam (in feet)/Slope in channel (ft/ft) Maintenance: Remove sediment accumulated behind the dam as needed to allow channel to drain through the stone check dam and prevent large flows from carrying sediment over the dam. If significant erosion occurs between check dams, a liner of stone should be installed. 7. Construct Permanent Controls Purpose: Permanent storm water treatment practices are constructed to maintain water quality, ensure groundwater flows, and prevent downstream flooding. Practices include detention ponds and wetlands, infiltration basins, and storm water filters. Requirements: If the total impervious* area on your site, or within the common plan of development, will be 1 or more acres, you must apply for a State Storm water Discharge Permit and construct permanent storm water treatment practices on your site. These practices must be installed before the construction of any impervious surfaces. How to comply: Contact the Vermont Storm water Program and follow the requirements in the Vermont Storm water Management Manual. The Storm water Management Manual is available at: www.vtwaterquality.org/stormwater.htm *An impervious surface is a manmade surface, including, but not limited to, paved and unpaved roads, parking areas, roofs, driveways, and walkways, from which precipitation runs off rather than infiltrates. 8. Stabilize Exposed Soil Purpose: Seeding and mulching, applying erosion control matting, and hydroseeding are all methods to stabilize exposed soil. Mulches and matting protect the soil surface while grass is establishing. Requirements: All areas of disturbance must have temporary or permanent stabilization within 7, 14, or 21 days of initial disturbance, as stated in the project authorization. After this time, any disturbance in the area must be stabilized at the end of each work day. The following exceptions apply: ·Stabilization is not required if earthwork is to continue in the area within the next 24 hours and there is no precipitation forecast for the next 24 hours. ·Stabilization is not required if the work is occurring in a self-contained excavation (i.e. no outlet) with a depth of 2 feet or greater (e.g. house foundation excavation, utility trenches). All areas of disturbance must have permanent stabilization within 48 hours of reaching final grade. How to comply: Prepare bare soil for seeding by grading the top 3 to 6 inches of soil and removing any large rocks or debris. Seeding Rates for Temporary Stabilization April 15 - Sept. 15 --- Ryegrass (annual or perennial: 20 lbs/acre) Sept. 15 - April 15 --- Winter rye: 120 lbs/acre Seeding Rates for Final Stabilization:Choose Mulching Rates April 15 - Sept.15 -- Hay or Straw: 1 inch deep (1-2 bales/1000 s.f.) Sept.15 - April 15 -- Hay or Straw: 2 in. deep (2-4 bales/1000 s.f.) Erosion Control Matting As per manufacturer's instructions Hydroseed As per manufacturer's instructions 9. Winter Stabilization Purpose: Managing construction sites to minimize erosion and prevent sediment loading of waters is a year-round challenge. In Vermont, this challenge becomes even greater during the late fall, winter, and early spring months. 'Winter construction' as discussed here, describes the period between October 15 and April 15, when erosion prevention and sediment control is significantly more difficult. Rains in late fall, thaws throughout the winter, and spring melt and rains can produce significant flows over frozen and saturated ground, greatly increasing the potential for erosion. Requirements for Winter Shutdown: For those projects that will complete earth disturbance activities prior to the winter period (October 15), the following requirements must be adhered to: 1. For areas to be stabilized by vegetation, seeding shall be completed no later than September 15 to ensure adequate growth and cover. 2. If seeding is not completed by September 15, additional non-vegetative protection must be used to stabilize the site for the winter period. This includes use of Erosion Control Matting or netting of a heavy mulch layer. Seeding with winter rye is recommended to allow for early germination during wet spring conditions. 3. Where mulch is specified, apply roughly 2 inches with an 80-90% cover. Mulch should be tracked in or stabilized with netting in open areas vulnerable to wind. Requirements for Winter Construction If construction activities involving earth disturbance continue past October 15 or begin before April 15, the following requirements must be adhered to: 1. Enlarged access points, stabilized to provide for snow stockpiling. 2. Limits of disturbance moved or replaced to reflect boundary of winter work. 3. A snow management plan prepared with adequate storage and control of meltwater, requiring cleared snow to be stored down slope of all areas of disturbance and out of storm water treatment structures. 4. A minimum 25 foot buffer shall be maintained from perimeter controls such as silt fence. 5. In areas of disturbance that drain to a water body within 100 feet, two rows of silt fence must be installed along the contour. 6. Drainage structures must be kept open and free of snow and ice dams. 7. Silt fence and other practices requiring earth disturbance must be installed ahead of frozen ground. 8. Mulch used for temporary stabilization must be applied at double the standard rate, or a minimum of 3 inches with an 80-90% cover. 9. To ensure cover of disturbed soil in advance of a melt event, areas of disturbed soil must be stabilized at the end of each work day, with the following exceptions: · If no precipitation within 24 hours is forecast and work will resume in the same disturbed area within 24 hours, daily stabilization is not necessary. · Disturbed areas that collect and retain runoff, such as house foundations or open utility trenches. 10. Prior to stabilization, snow or ice must be removed to less than 1 inch thickness. 11. Use stone to stabilize areas such as the perimeter of buildings under construction or where construction vehicle traffic is anticipated. Stone paths should be 10 to 20 feet wide to accommodate vehicular traffic. 10. Stabilize Soil at Final Grade Purpose: Stabilizing the site with seed and mulch or erosion control matting when it reaches final grade is the best way to prevent erosion while construction continues. Requirements: Within 48 hours of final grading, the exposed soil must be seeded and mulched or covered with erosion control matting. How to comply: Bring the site or sections of the site to final grade as soon as possible after construction is completed. This will reduce the need for additional sediment and erosion control measures and will reduce the total disturbed area. For seeding and mulching rates, follow the specifications under Rule 8, Stabilizing Exposed Soil. 11. Dewatering Activities Purpose: Treat water pumped from dewatering activities so that it is clear when leaving the construction site. Requirements: Water from dewatering activities that flows off of the construction site must be clear. Water must not be pumped into storm sewers, lakes, or wetlands unless the water is clear. How to comply: Using sock filters or sediment filter bags on dewatering discharge hoses or pipes, discharge water into silt fence enclosures installed in vegetated areas away from waterways. Remove accumulated sediment after the water has dispersed and stabilize the area with seed and mulch. 12. Inspect Your Site Purpose: Perform site inspections to ensure that all sediment and erosion control practices are functioning properly. Regular inspections and maintenance of practices will help to reduce costs and protect water quality. Requirements: Inspect the site at least once every 7 days and after every rainfall or snow melt that results in a discharge from the site. Perform maintenance to ensure that practices are functioning according to the specifications outlined in this handbook. In the event of a noticeable sediment discharge from the construction site, you must take immediate action to inspect and maintain existing erosion prevention and sediment control practices. Any visibly discolored storm water runoff to waters of the State must be reported. Forms for reporting discharges are available at: www.vtwaterquality.org/stormwater.htm N.T.S. CONSTRUCTION FENCE DETAIL REVISED 08/01/2014E-002E-002 Constr FenceWOOD POST 30"18"EXISTING GRADE NATIVE MATERIAL PLASTIC ORANGE CONSTRUCTION FENCE REVISED 08/01/2014E-004E-004 Constr. Ent20' (6m) RROADWAYAA STABILIZED CONSTRUCTION ENTRANCE N.T.S.12'. MIN.50' MIN. SECTION A-A DIVERSION RIDGE REQUIRED WHERE GRADE EXCEEDS 2% ROADWAY 2% OR GREATER SPILLWAY FILTER FABRIC SANDBAGS OR CONTINUOUS BERM OF EQUIVALENT HEIGHT DIVERSION RIDGE SUPPLY WATER TO WASH WHEELS IF NECESSARY 2"-3" (50-75mm) COURSE AGGREGATE MIN. 8" (150mm) THICK PLAN VIEW NOTES: 1. THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION THAT WILL PREVENT TRACKING OR FLOWING OF SEDIMENT ONTO PUBLIC RIGHT-OF-WAYS. THIS MAY REQUIRE TOP DRESSING, REPAIR AND/OR CLEAN OUT OF ANY MEASURES USED TO TRAP SEDIMENT. 2. WHEN NECESSARY, WHEELS SHALL BE CLEANED PRIOR TO ENTRANCE ONTO PUBLIC RIGHT-OF-WAY. 3. WHEN WASHING IS REQUIRED, IT SHALL BE DONE ON AN AREA STABILIZED WITH CRUSHED STONE THAT DRAINS INTO AN APPROVED SEDIMENT TRAP OR SEDIMENT BASIN. NOTE: USE SANDBAGS OR OTHER APPROVED METHODS TO CHANNELIZE RUNOFF TO BASIN AS REQUIRED REVISED 08/01/2014E-003E-003 Silt FenceN.T.S. SILT FENCE DETAIL NOTES: 1. INSTALL MIRIFI ENVIROFENCE, OR APPROVED EQUAL OR AS DETAILED HEREIN. 2. INSTALL SILT FENCES AT TOES OF ALL UNPROTECTED SLOPES AND AS PARALLEL TO CONTOURS AS POSSIBLE. THIS INCLUDES ALL FILLED OR UNPROTECTED SLOPES CREATED DURING CONSTRUCTION, NOT NECESSARILY REFLECTED ON THE FINAL PLANS. CURVE THE ENDS OF THE FENCE UP INTO THE SLOPE. REMOVE SEDIMENT WHEN ACCUMULATED TO HALF THE HEIGHT OF THE FENCE. SILT FENCES ARE TO BE MAINTAINED UNTIL SLOPES ARE STABILIZED. 3. WHEN TWO SECTIONS OF FILTER CLOTH ADJOIN EACH OTHER, THEY SHALL BE OVERLAPPED BY 6", FOLDED AND STAPLED. 10' 10' 2.5' METAL POST 4 x 4 WOOD POST SPACING 212 X 212 WOOD 36" MIN.12" MIN.POST 2"8"FILTER FABRIC TO BE MIRAFI 100X OR APPROVED EQUAL FILTER FABRIC TO BE CLIPPED, BACKFILLED AND TAMPED 8" BELOW GRADE STEEL OR WOOD STAKES (SEE CHART AT RIGHT) REVISED 08/01/2014E-005E-005 StockpileTEMPORARY STOCKPILE DETAIL N.T.S. TEMPORARY SEEDING & MULCH OR NETTING SILT FENCE OR HAY BALES INSTALLED ON DOWN GRADIENT SIDE REVISED 08/01/2014E-007E-007 Infilt SectSILT FENCE CONSTRUCTION DETAIL N.T.S. 2. ATTACH SILT FENCE AND EXTEND IT TO THE TRENCH. 3. STAPLE THE SILT FENCING TO THE END POSTS. BACKFILL TRENCH. 1. SET POSTS AND EXCAVATE A 4"X8" TRENCH, SET POST DOWNSLOPE. ANGLE 10° UPSLOPE FOR STABILITY AND SELF CLEANING POSTS SILT FENCE 1 0 0 °12"MIN.8"COMPACTED BACKFILL 9/2/20 DSM SKETCH 1/26/21 DSM PRELIMINARY FINAL P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 10/26/2021 2:42:54 PM, gcarter C3.1 LOCATION MAP 1" = 2000' EROSION CONTROL DETAILS & SPECIFICATIONS A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com DSM DSM GAC AS SHOWN 18232 SEP., 2020 DONALD & LOIS KERWIN 234 BOUTIN ROAD HINESBURG VERMONT 05403 KERWIN SUBDIVISION 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 N.T.S. FOR PERIMETER CONTROL REVISED 12/19/2014E-010E-010 Silt Fence Perimeter ControlCorrect - Install J-hooks 0.3 ACRE Discreet segments of silt fence, installed with J-hooks or `smiles' will be much more effective. PL 1 ACREF A I L U R E PL Incorrect - Do Not layout "perimeter control" silt fences along property lines. All sediment laden runoff will concentrate and overwhelm the system. 1 ACRE 0.3 ACRE0.3 ACRE SILT FENCE PLACEMENT N.T.S. STRAW ANCHORING REVISED 12/19/2014E-012E-012 Straw Anchoring(TYPICAL) MULCH STRAW SPREAD NOTES: 1. ROUGHEN SLOPE WITH BULLDOZER. 2. BROADCAST SEED AND FERTILIZER. 3. SPREAD STRAW MULCH 3" (2 12 TONS PER ACRE) 4. PUNCH STRAW MULCH INTO SLOPE BY RUNNING BULLDOZER UP AND DOWN SLOPE. 'TRACKING' WITH MACHINERY ON SANDY SOIL PROVIDES ROUGHENING WITHOUT UNDUE COMPACTION. N.T.S. TYPICAL INSTALLATION REVISED 12/19/2014E-011E-011 Grass Lined ChannelINTERMITTENT CHECK SLOT FLOWLONGITUDINAL ANCHOR TRENCH GRASS-LINED CHANNEL TYPICAL INSTALLATION WITH EROSION CONTROL BLANKETS OR TURF REINFORCEMENT MATS PREPARE SOIL AND APPLY SEED BEFORE INSTALLING BLANKETS, MATS OR OTHER TEMPORARY CHANNEL LINER SYSTEM EXCAVATE CHANNEL TO DESIGN GRADE AND CROSS SECTON NOTES: 1. DESIGN VELOCITIES EXCEEDING 2 FT./SEC/ REQUIRE TEMPORARY BLANKETS, MATS OR SIMILAR LINERS TO PROTECT SEED AND SOIL UNTIL VEGETATION BECOMES ESTABLISHED. 2. GRASS-LINED CHANNELS WITH DESIGN VELOCITIES EXCEEDING 6 FT./SEC. SHOULD INCLUDE TURF REINFORCEMENT MATS.6"6"6"DESIGNDEPTHOVERLAP 6" MINIMUM OVERCUT CHANNEL 2" TO ALLOW BULKING DURING SEEDBED PREPARATION LONGITUDINAL ANCHOR TRENCH SHINGLE-LAP SPLICED ENDS OR BEGIN NEW ROLL IN AN INTERMITTENT CHECK SLOT BERM 12"2:1 SLOPE6'3' ISOMETRIC VIEW TYPICAL SLOPE SOIL STABILIZATION3'STAPLES REINFORCEMENT MATS EROSION BLANKETS & TURF 12"4' N.T.S. SLOPE INSTALLATION E-009E-009 Slope Erosion BlanketsNOTES: 1. SLOPE SURFACE SHALL BE FREE OF ROCKS, CLODS, STICKS AND GRASS. MATS/BLANKETS SHALL HAVE GOOD SOIL CONTACT. 2. APPLY PERMANENT SEEDING BEFORE PLACING BLANKETS. 3. LAY BLANKETS LOOSELY AND STAKE OR STAPLE TO MAINTAIN DIRECT CONTACT WITH THE SOIL. DO NOT STRETCH. MATS/BLANKETS SHOULD BE INSTALLED VERTICALLY DOWNSLOPE.TAMP SOIL O V E R M A T / B L A N K E T MIN. 4" OVERLAP 6"112"112"12"REVISED 08/01/2014 REVISED 08/01/2014E-006E-006 Check DamSTONE CHECK DAM STRUCTURE N.T.S. 30 36 41 50 66 100 15 18 20 25 33 48 MAXIMUM WATER DEPTH OVER ROCK (mm) 0.35 0.30 0.25 0.20 0.15 0.10 150 75 D-50 OF ROCK (MM) DOWNSTREAM FLOWLINE SLOPE OF STRUCTURE (m/m) 60cm (2 ft. MAX.) 15cm TO 45cm (0.5 TO 1.5 ft.) DIFFERENCE 75mm (3 in.) MIN. COARSE ROCK 0.35 m/m OR FLATTER FLOW LINE SLOPE ROCK SET IN 10cm (4 in. MIN.) TRENCH MINIMUM DEPTH OF COARSE ROCK PLACED IN CHANNEL FLOW LINE IS 15cm (0.5 ft.) SIDE VIEW FRONT VIEW END POINTS 'A' MUST BE HIGHER THAN THE FLOW LINE POINT 'B' AA B A B PLACE DOWNSTREAM STRUCTURE SUCH THAT POINT 'B' IS APPROXIMATELY LEVEL WITH THE LOWEST GROUND ELEVATION OF THE UPSTREAM STRUCTURE 9/2/20 DSM SKETCH 1/26/21 DSM PRELIMINARY FINAL P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 10/26/2021 2:43:11 PM, gcarter C4.0 LOCATION MAP 1" = 2000' SPECIFICATIONS A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com DSM DSM GAC AS SHOWN 18232 SEP., 2020 DONALD & LOIS KERWIN 234 BOUTIN ROAD HINESBURG VERMONT 05403 KERWIN SUBDIVISION 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 9/2/20 DSM SKETCH 1/26/21 DSM PRELIMINARY FINAL P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 10/26/2021 2:43:23 PM, gcarter ” “ C4.1 LOCATION MAP 1" = 2000' SPECIFICATIONS A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com DSM DSM GAC AS SHOWN 18232 SEP., 2020 DONALD & LOIS KERWIN 234 BOUTIN ROAD HINESBURG VERMONT 05403 KERWIN SUBDIVISION 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 9/2/20 DSM SKETCH 1/26/21 DSM PRELIMINARY FINAL P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 10/26/2021 2:43:31 PM, gcarter C4.2 LOCATION MAP 1" = 2000' SPECIFICATIONS A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com DSM DSM GAC AS SHOWN 18232 SEP., 2020 DONALD & LOIS KERWIN 234 BOUTIN ROAD HINESBURG VERMONT 05403 KERWIN SUBDIVISION 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 9/2/20 DSM SKETCH 1/26/21 DSM PRELIMINARY FINAL P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 10/26/2021 2:43:41 PM, gcarter C4.3 LOCATION MAP 1" = 2000' SPECIFICATIONS A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com DSM DSM GAC AS SHOWN 18232 SEP., 2020 DONALD & LOIS KERWIN 234 BOUTIN ROAD HINESBURG VERMONT 05403 KERWIN SUBDIVISION 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 9/2/20 DSM SKETCH 1/26/21 DSM PRELIMINARY FINAL P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 10/26/2021 2:43:51 PM, gcarter √√ C4.4 LOCATION MAP 1" = 2000' SPECIFICATIONS A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com DSM DSM GAC AS SHOWN 18232 SEP., 2020 DONALD & LOIS KERWIN 234 BOUTIN ROAD HINESBURG VERMONT 05403 KERWIN SUBDIVISION 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 9/2/20 DSM SKETCH 1/26/21 DSM PRELIMINARY FINAL P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 10/26/2021 2:43:59 PM, gcarter C4.5 LOCATION MAP 1" = 2000' SPECIFICATIONS A C CIVIL ENGINEERING ASSOCIATES, INC. E 10 MANSFIELD VIEW LANE, SOUTH BURLINGTON, VT 05403 P: 802-864-2323 FAX: 802-864-2271 web: www.cea-vt.com DSM DSM GAC AS SHOWN 18232 SEP., 2020 DONALD & LOIS KERWIN 234 BOUTIN ROAD HINESBURG VERMONT 05403 KERWIN SUBDIVISION 209 HIGHLAND TERRACE SOUTH BURLINGTON, VT PROJECTLOCATION 116 SO. BURLINGTONWILLISTON116 9/2/20 DSM SKETCH 1/26/21 DSM PRELIMINARY FINAL P:\AutoCADD Projects\2018\18232\1-CADD Files-\dwg\18232-Details and Spec.dwg, 10/26/2021 2:44:07 PM, gcarter