The URL can be used to link to this page

Home My WebLink AboutZP-21-448 - 0705 Spear Street 12/3/2021CD-1 Civil Details 164 Main Street, Suite 201 P: (802) 878-0375 Colchester, Vermont 05446 www.krebsandlansing.com CIVIL ENGINEER University of Vermont 284 EAST AVENUE BURLINGTON, VERMONT 05405 Project Manager: Scott Goodwin Physical Plant Department South Burlington, Vermont UNIVERSITY of VERMONT Potash Brook Watershed 2' - 0 " 1'-0" 12" CD-2 Civil Details 164 Main Street, Suite 201 P: (802) 878-0375 Colchester, Vermont 05446 www.krebsandlansing.com CIVIL ENGINEER University of Vermont 284 EAST AVENUE BURLINGTON, VERMONT 05405 Project Manager: Scott Goodwin Physical Plant Department South Burlington, Vermont UNIVERSITY of VERMONT Potash Brook Watershed Erosion Prevention and Sediment Control Notes Winter Construction Requirements (October 15th - April 15th) 4.5' 5' 2' 4" - 6" 5' 15" DEPTH OF TYPE I STONE PER VT. SPEC. 706.04 MIRAFI 140N FABRIC UNDER AND TO SIDES OF STONE 12" DEEP TYPE I STONE PER VT. SPEC. 706.04 STORM WATER FLOW PLAN CROSS SECTION STORMWATER OUTFALL DETAIL N.T.S. HDPE END SECTION 1' MIN. 1' MIN. PROVIDE LIP LEVEL SPREADER AT END OF OUTFALL. CD-3 Civil Details 164 Main Street, Suite 201 P: (802) 878-0375 Colchester, Vermont 05446 www.krebsandlansing.com CIVIL ENGINEER University of Vermont 284 EAST AVENUE BURLINGTON, VERMONT 05405 Project Manager: Scott Goodwin Physical Plant Department South Burlington, Vermont UNIVERSITY of VERMONT Potash Brook Watershed INTERS T A T E 1 8 9 SP E A R S T R E E T AdA AdA BlA Le AdD AdA TP-5 TP-2 TP-1 TP-3 x284.5 284 x284.5 284 282 x283.0 x281.0 x284.5 282 284.5x 28 3 . 7 5 x 284 x285 . 5 x285 . 5 USDA FOREST SERVICE GARAGE 705 SPEAR ST 0864 x283.50 x283.80 x28 3 . 2 5 x283.0x283.0 x281.0 x281.0 281.0 x 281. 0 x USDA FOREST SERVICE SCIENCE LAB 705 SPEAR ST 0862 USDA FOREST SERVICE HEAD HOUSE 705 SPEAR ST 0863 285 283 Class Il Wetland Class Il Wetland AdD South Burlington, Vermont 14199\DWGS\UVM-Potash WS.dwg DMR 9/27/2021 1" = 40' Forest Services Overall Stormwater Plan 18314 SP-F3 UNIVERSITY of VERMONT Potash Brook Watershed Stormwater Outfall #1 F-WS-1 Watershed limit Impervious Area draining to Gravel Wetland (0.90 ac) SOIL TEST HOLE INFORMATION Date:May 1, 2019 Weather:45 degrees Present: Jay Renshaw, Krebs & Lansing Consulting Engineers Inc. NLWTD = no ledge, water to depth Redox = redoximorphic features HSWT = high seasonal water table NLTD = No ledge to depth TP #1 0-6” Dark brown 10YR 4/2 loam, ½-¾ gravels right 6-24”Grey 10YR 4/1 fine/loamy sand, firm in place, friable in hand, angular blocky, Redox features present 24-48”Grey 10YR 6/1 very fine sand, platy/layered, firm, distinct mottles, Redox features common 48-60”Grey 10YR 6/1 fine sand, soft, damp, seep @ 50” Redox features prominent HSWT @ 6” NLTD Seep @ 50” TP #2 2” organic materials, woods, leaves, duff layer 0-6” Dark grey 10YR 4/1 loamy sand, fine granular structure, many worms, damp, many Redox features 6-12”Greyish brown 10YR 5/2 sand, granular structure, damp, many roots, common Redox features 12-30”Dark brown/black 10YR 2/1 sand, granular structure, soft, sharp angles, holds in place, distinct Redox 30-40”Brown/light brown 10YR 5/3 sand, single grain structure, very loose, damp to wet, common Redox, seep @ 40” 40-60”Grey 10YR 5/1 fine sand, saturated pooling water, few pockets coarse fines, gravels, Redox prominent HSWT @ Surface NLTD Seep @ 40” TP #3 3” organic materials, woods, duff layer 0-5” Dark brown 10YR 3/3 loam, angular blocky structure, soft, damp, many roots, loose 5-10”Olive/light brown 5Y 5/4 fine loamy sand, granular, many roots, worms, faint Redox @ 10”, moisture increases with depth, damp to saturated 10-22”Olive/light brown 5Y 5/4 fine loamy sand, granular, many roots, worms, distinct Redox, moisture increases with depth, damp to saturated 22-44”Very dark brown 10YR 2/2 loamy/fine sand, fine granular structure, few roots, distinct Redox 44-60”Reddish brown 5YR 5/4 coarse sand, structureless, very loose, seep @ 48”, water filled to 48”, saturated side walls HSWT @ ±10” NLTD Seep @ 48” TP #5 0-10” Dark brown 10YR 3/4 loamy sand, soft roots, mottling @ 10”, faint granular structure 10-20”Light brown 10YR 4/4 loamy sand, granular, worms, few roots, distinct mottles 20-30”Olive 10YR 3/1 fine sand, few roots, fine granular, distinct mottles 30-45”Yellow brown 10YR 5/4 sand, soft, granular, saturated, filled with water @ 45”, distinct mottles HSWT @ 10” NLTD (later filled to 40” Recheck) 164 Main Street, Suite 201 P: (802) 878-0375 Colchester, Vermont 05446 www.krebsandlansing.com CIVIL ENGINEER University of Vermont 284 EAST AVENUE BURLINGTON, VERMONT 05405 Project Manager: Scott Goodwin Physical Plant Department Stormwater Outlet Structure Proposed Gravel Wetland with pretreatment forebay Stormwater Outfall #2 Stormwater Outfall #3 INTERS T A T E 1 8 9 SP E A R S T R E E T USDA FOREST SERVICE SCIENCE LAB 705 SPEAR ST 0862 USDA FOREST SERVICE HEAD HOUSE 705 SPEAR ST 0863 South Burlington, Vermont 14199\DWGS\UVM-Potash WS.dwg Forest Services Existing Conditions Plan SP-F4 UNIVERSITY of VERMONT Potash Brook Watershed 164 Main Street, Suite 201 P: (802) 878-0375 Colchester, Vermont 05446 www.krebsandlansing.com CIVIL ENGINEER University of Vermont 284 EAST AVENUE BURLINGTON, VERMONT 05405 Project Manager: Scott Goodwin Physical Plant Department 50' Class Il Wetland buffer SITE x284.5 284 x284.5 284 282 x283.0 x281.0 x284.5 282 284.5x 28 3 . 7 5 x 284 x285 . 5 x285 . 5 Install stabilized construction entrance USDA FOREST SERVICE GARAGE 705 SPEAR ST 0864 Install 4' ft high orange construction barrier fence prior to principal earthwork activities Install straw wattles along downslope limit of disturbance Regrade grass lined swale. Install erosion control matting for temporary stabilization x283.50 x283.80 x28 3 . 2 5 x283.0x283.0 x281. 0 x281.0 281.0 x 281. 0 x Stormwater outfall piping and associated wetland impact shall be the first principal earthwork activity and shall be performed during a dry period Divert upslope runoff away from excavation. Provide stormwater diversion plan to Engineer. Stabilize wetland impact areas with rolled erosion matting If dewatering is required, pump to a sediment filter bag (DirtBag, or approved equal) away from disturbed soils Sweep pavement as necessary USDA FOREST SERVICE HEAD HOUSE 705 SPEAR ST 0863 285 283 Class Il Wetland Class Il Wetland Install compost filled sediment filters, SiltSoxx, or approved equal, as check dams until Final Stabilization Install 4' ft high orange construction barrier fence to delineate project disturbance and for tree protection prior to beginning earthwork activities Install 4' ft high orange construction barrier fence to delineate project disturbance and for tree protection prior to beginning earthwork activities Remove and dispose of existing tree and stump 14199\DWGS\UVM-Potash WS.dwg Erosion Prevention & Sediment Control Plan SP-F5 Erosion Prevention and Sediment Control Notes 164 Main Street, Suite 201 P: (802) 878-0375 Colchester, Vermont 05446 www.krebsandlansing.com CIVIL ENGINEER University of Vermont 284 EAST AVENUE BURLINGTON, VERMONT 05405 Project Manager: Scott Goodwin Physical Plant Department South Burlington, Vermont UNIVERSITY of VERMONT Potash Brook Watershed INTERS T A T E 1 8 9 SP E A R S T R E E T 284 284 282 282 284 USDA FOREST SERVICE SCIENCE LAB 705 SPEAR ST 0862 USDA FOREST SERVICE HEAD HOUSE 705 SPEAR ST 0863 285 283 South Burlington, Vermont 14199\DWGS\UVM-Potash WS.dwg Forest Services Overall Site Plan SP-F1 UNIVERSITY of VERMONT Potash Brook Watershed 164 Main Street, Suite 201 P: (802) 878-0375 Colchester, Vermont 05446 www.krebsandlansing.com CIVIL ENGINEER University of Vermont 284 EAST AVENUE BURLINGTON, VERMONT 05405 Project Manager: Scott Goodwin Physical Plant Department 50' Class Il Wetland buffer Proposed Gravel Wetland SITE Snow S t o r a g e Snow Stor a g e Snow Storage Snow Storage Install new screened dumpster enclosure. See Detail Replace existing bike racks with 4 new U-style rail mount bike racks x284.5 284 x284.5 284 282 x283.0 x281.0 x284.5 282 284.5x 28 3 . 7 5 x 284 x285 . 5 x285 . 5 Proposed Gravel Wetland 75' long x 30' wide. See details. New Outlet Structure See Detail. New 15" PVC Stoned lined emergency spillway New end section with rip rap outfall to slow and spread flow. See Stormwater Outfall Detail Inv. 279.5 Maintain relatively flat area for farm equipment access New stone weir from Forebay to Gravel Wetland. See Detail. New 2 feet deep forebay After Gravel Wetland is built, regrade swale to direct runoff to new forebay 50' Wetland Buffer USDA FOREST SERVICE GARAGE 705 SPEAR ST 0864 Natural Wetlands Impact 60 s.f. Natural Wetland Buffer Impact 560 s.f. Managed Wetland Buffer Impact 760 s.f. x283.50 x283.80 x28 3 . 2 5 x283.0x283.0 x281. 0 x281.0 281.0 x 281. 0 x USDA FOREST SERVICE HEAD HOUSE 705 SPEAR ST 0863 285 283 Class Il Wetland Class Il Wetland Managed Wetland Buffer Impact 310 s.f. Remove and dispose of existing tree and stump Install stabilized construction entrance Install 4' ft high orange construction barrier fence prior to principal earthwork activities Install straw wattles along downslope limit of disturbance Regrade grass lined swale. Install erosion control matting for temporary stabilization Stormwater outfall piping and associated wetland impact shall be the first principal earthwork activity and shall be performed during a dry period Divert upslope runoff away from excavation. Provide stormwater diversion plan to Engineer. Stabilize wetland impact areas with rolled erosion matting If dewatering is required, pump to a sediment filter bag (DirtBag, or approved equal) away from disturbed soils Sweep pavement as necessary Install 4' ft high orange construction barrier fence to delineate project disturbance and for tree protection prior to beginning earthwork activities Install compost filled sediment filters, SiltSoxx, or approved equal, as check dams until Final StabilizationInstall 4' ft high orange construction barrier fence to delineate project disturbance and for tree protection prior to beginning earthwork activities South Burlington, Vermont 14199\DWGS\UVM-Potash WS.dwg Forest Services Stormwater Site Plan SP-F2 UNIVERSITY of VERMONT Potash Brook WatershedGENERAL NOTES 1.The Contractor shall be responsible for repairing all disturbed areas back to original condition. 2.All stumps, rock, and other non-approved backfill material discovered during construction is the exclusive property of the Contractor and shall be removed from UVM property and disposed of in a State approved disposal location. 3.Exposed soil for construction of the outfall pipe located on the slope of the wetland and wetland buffer are to be limited to the shortest duration possible. Disturbed areas shall be topsoiled, seeded, and stabilized with straw erosion matting (North American Green SC150, or approved equal) within 48 hours of backfill, or before a forecasted rain event, whichever occurs first. 4.Temporary groundwater or surface water dewatering and/or diversion is the responsibility of the Contractor. The Contractor is responsible for providing all necessary pumps and equipment to perform the work. Pumped or by-passed water shall not be visibly discolored. 5.The erosion prevention and sediment control practices shown on these plans are the minimum required for the project. The Contractor shall be responsible for installing and maintaining as many best management practices as necessary to prevent soil from leaving the construction site. If evidence is found of offsite sediment transport by construction vehicle tracking, pump-out/ bypass procedures, or erosion, the Engineer or Owner may direct the Site Contractor to implement additional best management practices at no additional cost to the Owner. 6.Contractor shall be responsible for all costs of importing and placing topsoil and/or compost necessary to complete the project. Contractor shall test topsoil for approval by the Owner and Engineer. 7.The Contractor shall be responsible for all signage and fencing necessary to providing safe vehicular and pedestrian access through or around the site during construction. 8.Removal of all erosion control matting and other erosion prevention and sediment control practices is the responsibility of the Contractor. 164 Main Street, Suite 201 P: (802) 878-0375 Colchester, Vermont 05446 www.krebsandlansing.com CIVIL ENGINEER University of Vermont 284 EAST AVENUE BURLINGTON, VERMONT 05405 Project Manager: Scott Goodwin Physical Plant Department Sno w S t o r a g e Snow S t o r a g e Snow Storage Install new screened dumpster enclosure. See Detail