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Home My WebLink AboutSP-22-019 - Supplemental - 0055 Green Mountain Drive (19)STS WW WGG S OE OE OE OES GREEN MOUNTAIN DR.VERMONT COMMONS SCHOOL n/f VERMONT COMMONS SCHOOL n/f RAVA LLC n/f THE HERITAGE AUTOMOTIVE GROUP INC. n/f THE HERITAGE AUTOMOTIVE GROUP INC. n/f UVM & STATE AGRICULTURAL COLLEGE C/O CAMPUS PLANNING SERVICES 2072 1 1 2122132082 0 9 210214202203201204205206DSM DSM MAB 1" = 40' 22101 C0.0 03/18/2022 LOCATION MAP 1" = 2000' VERMONT COMMONS SCHOOL 75 GREEN MOUNTAIN DRIVE SOUTH BURLINGTON VERMONT 05403 SITE IMPROVEMENTS OVERALL EXISTING & PROPOSED CONDITIONS PLAN PROJECT LOCATION 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 7 LEGEND G ST W EXISTING CONTOUR EXISTING CURB EXISTING PAVEMENT EXISTING GAS EXISTING STORM EXISTING WATER EXISTING SEWER MANHOLE EXISTING CATCH BASIN EXISTING HYDRANT EXISTING SHUT OFF APPROXIMATE PROPERTY LINE S 55 GREEN MOUNTAIN DRIVE SOUTH BURLINGTON VERMONT 05403 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 APPROXIMATE AND BASED ON EXISTING TAX MAP INFORMATION. THIS PLAN IS NOT A BOUNDARY SURVEY AND IS NOT INTENDED TO BE USED AS ONE. 3.SITE INFORMATION IS BASED ON A FIELD SURVEY PERFORMED BY CIVIL ENGINEERING ASSOCIATES, INC MARCH 2022. CIVIL ENGINEERING ASSOCIATES, INC. SURVEY ORIENTATION IS "GRID NORTH", VERMONT COORDINATE SYSTEM OF 1983 (HORIZONTAL) AND NAVD88 (VERTICAL) ESTABLISHED FROM GPS OBSERVATIONS ON SITE.P:\AutoCADD Projects\2022\22101-Vermont Commons\1-CADD Files-22101\dwg\22101 - Site.dwg, C0.0, 3/18/2022 11:27:17 AM65 Green Mountain Drive - UVM See Sheet C1.0 for Detailing of the Proposed Path Connection. 55 Green Mountain Drive Vermont Commons School 75 Green Mountain Drive ST STS WWW W WGGG EXIST. XFMR EXIST. GENERATOR EXIST. XFMR EXIST. UTIL. BOXES S EXIST. UTIL. BOX EXIST. MAIL BOX EXIST. UTIL. BOX PROPOSED SIDEWALK PROPOSED SIDEWALK PROPOSED CROSSWALK S=0.013 PROPOSED CROSSWALKST15" AC INV=207.9 GREEN MOUNTAIN DR.T EXIST. BUILDING (16,771 S.F.) T ST ST 18" PINE 16" MAPLE 18" PINE 20" PINE 22" OAK 22" OAK OE OE OE OE OE THRESHOLD=212.8 216215214213212211211210 210 210 209209209 209209208 208208 2 0 8 207207206 2062 0 5 2044" CRAB FFE ALUM=211.2 FFE CARPET=211.1LOADING DOCK ELEV.=211.2 EX CB#3 RIM=209.3 EX CB#1 RIM=205.3 8" MAPLE 3" CRAB 8" CEDAR 6" CEDAR 42" LOCUST (4)LOCUST 8"-14" 8" SPRUCE GATEEX CB#2 RIM=206.8 206.6 + 207.6 + 210. 7 + 211.2 + + 208.3 + 210.0 REMOVE CURB AT CROSSWALK TAPER CURB PER DETAIL 208.0+ 207.4+ ABANDONED 212 213 2 1 1 207208209207 207 209210PROPOSED 5' WIDE SIDEWALK S=0.015 REMOVE EXISTING SIDEWALK INSTALL 4" TOPSOIL SEED AND MULCH IN NEW LAWN AREAS PROPOSED SIDEWALK MATCH EX. WIDTH S=0.03 +2 1 1 . 1 S EX SMH#1 RIM=204.7 EX SMH#1 RIM=209.3 RELOCATED EX. NO PARKING SIGN MATCH EX. GRADE AND WIDTHS=0.016EXISTING TREE TO BE REMOVED VERMONT COMMONS SCHOOL n/f VERMONT COMMONS SCHOOL n/f RAVA LLC n/f THE HERITAGE AUTOMOTIVE GROUP INC. n/f THE HERITAGE AUTOMOTIVE GROUP INC. n/f UVM & STATE AGRICULTURAL COLLEGE C/O CAMPUS PLANNING SERVICES 210 FFE ALUM=211.2 + 208.3 209210211.0 210.96 210.86 5.3' @ 2% 211.1 7'x5" LANDING 2%2% 7'x5" LANDING 2% 2% 5' CLR 1:12RAMP+ 208.3 7' 208.79 208.89 208.93 209.03 208.25 208.35 3% EX. LIGHT POLE EX. AWNING 211210210 209 PROPOSED HANDRAIL PER DETAIL C2.0 OE OE OE OE OE 211 210 3" CRAB 42" LOCUST + 207.7209 207.8 5'x7' LAN D I N G 2%2% + 207.9 207.66 210 . 2 + 211 210 209 20820 8 209 209. 8 + 210.02 210.16 RAMP1:12209.92 210.06 S EX SMH#1 RIM=209.3 5'x7' LANDING 2%2% RELOCATED EX. NO PARKING SIGN 2112102092:1209210 208208EXISTING TREE TO BE REMOVED PROPOSED HANDRAIL PER DETAIL C2.0 5' CLR 7' DSM DSM MAB 1" = 30' 22101 C1.0 03/18/2022 LOCATION MAP 1" = 2000' VERMONT COMMONS SCHOOL 75 GREEN MOUNTAIN DRIVE SOUTH BURLINGTON VERMONT 05403 SITE IMPROVEMENTS EXISTING & PROPOSED CONDITIONS PLAN PROJECT LOCATION 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 7 LEGEND G ST W EXISTING CONTOUR EXISTING CURB EXISTING PAVEMENT EXISTING GAS EXISTING STORM EXISTING WATER EXISTING SEWER MANHOLE EXISTING CATCH BASIN EXISTING HYDRANT EXISTING SHUT OFF APPROXIMATE PROPERTY LINE S 55 GREEN MOUNTAIN DRIVE SOUTH BURLINGTON VERMONT 05403 LOCUST MAP SCALE: 1" = 100' SITE PLAN SCALE: 1" = 30' 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 APPROXIMATE AND BASED ON EXISTING TAX MAP INFORMATION. THIS PLAN IS NOT A BOUNDARY SURVEY AND IS NOT INTENDED TO BE USED AS ONE. 3.SITE INFORMATION IS BASED ON A FIELD SURVEY PERFORMED BY CIVIL ENGINEERING ASSOCIATES, INC MARCH 2022. CIVIL ENGINEERING ASSOCIATES, INC. SURVEY ORIENTATION IS "GRID NORTH", VERMONT COORDINATE SYSTEM OF 1983 (HORIZONTAL) AND NAVD88 (VERTICAL) ESTABLISHED FROM GPS OBSERVATIONS ON SITE. ENTRY SIDEWALK SCALE: 1" = 5' NORTH SIDEWALK SCALE: 1" = 5' SEE INSET NORTH SIDEWALK SEE INSET ENTRY SIDEWALK P:\AutoCADD Projects\2022\22101-Vermont Commons\1-CADD Files-22101\dwg\22101 - Site.dwg, C1.0, 3/16/2022 3:43:14 PMCommercial 2 Zoning District Institutional & Agricultural-South Zoning District DSM DSM MAB AS SHOWN 22101 C2.0 03/18/2022 LOCATION MAP 1" = 2000' VERMONT COMMONS SCHOOL 75 GREEN MOUNTAIN DRIVE SOUTH BURLINGTON VERMONT 05403 SITE IMPROVEMENTS SITE DETAILS PROJECT LOCATION 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 7 55 GREEN MOUNTAIN DRIVE SOUTH BURLINGTON VERMONT 05403 NOTES: 1.SIDEWALK JOINTS: - CONSTRUCTION JOINTS: SET CONSTRUCTION JOINTS AT SIDE AND END TERMINATIONS OF PAVING AND AT LOCATIONS WHERE PAVING OPERATIONS ARE STOPPED FOR MORE THAN ONE-HALF HOUR UNLESS PAVING TERMINATES AT ISOLATION JOINTS. - ISOLATION JOINTS: FORM ISOLATION JOINTS OF PREFORMED JOINT-FILLER STRIPS ABUTTING CONCRETE CURBS, CATCH BASINS, MANHOLES, INLETS, STRUCTURES, OTHER FIXED OBJECTS, AND WHERE INDICATED. - CONTRACTION JOINTS: FORM WEAKENED-PLANE CONTRACTION JOINTS, SECTIONING CONCRETE INTO AREAS AS INDICATED. TYPICAL JOINT SPACING IS 5 FEET BUT MAY BE INDICATED DIFFERENTLY ON PLANS FOR WIDER SIDEWALKS OR PLAZA AREAS. CONSTRUCT CONTRACTION JOINTS FOR A DEPTH EQUAL TO AT LEAST ONE-FOURTH OF THE CONCRETE THICKNESS, CONTRACTION JOINTS MAY BE EITHER GROOVED or SAWED JOINTS. 2.NO DEICER SHALL BE APPLIED TO SIDEWALK UNTIL AT LEAST 30 DAYS OF AIR DRYING TIME HAS OCCURRED. 3.LIQUID MEMBRANE-FORMING CURING AND SEALING COMPOUNDS SHALL MEET ASTM C309 or C1315. SEALERS SHALL BE BASED ON SILANE OR SILOXANE TECHNOLOGY FOR BEST SALT AND WATER REPELLENCY FOR CONCRETE PAVEMENTS. TWO COATS SHALL BE APPLIED AT RIGHT ANGLES FOR EVEN COVERAGE. INSTALL IN CONFORMANCE WITH MANUFACTURERS RECOMMENDATIONS. 4.INSTALL POLYURETHANE ELASTOMERIC SEALANT AT ALL SAWED JOINTS. N.T.S. CONCRETE SIDEWALK DETAIL S-002S-002 Conc Walk6"6" SIDEWALK WIDTH AS SHOWN ON PLANS 8" COMPACTED CRUSHED GRAVEL (704.05 FINE) 5" THICK CONCRETE SIDEWALK (8" THICK AT DRIVEWAY CROSSINGS) UNDISTURBED SOIL OR APPROVED COMPACTED GRANULAR FILL REVISED 7/01/2019 4" MINIMUM TOPSOIL, SEED AND MULCH ALL SIDESLOPE - USE EROSION MATTING (WHEN REQUIRED) TO ESTABLISH VEGETATION N.T.S. TRANSITION CURB DETAIL S-006S-006 Trans Curb7"6'-0"1"FACE OF CURB END TRANSITION SLOPE BEGIN TRANSITION SLOPE TOP OF CURB (SEE PLAN FOR TYPE OF CURB) FINISHED GRADE OF ROAD PAVEMENT REVISED 08/01/2014 N.T.S. CROSSWALK DETAIL S-008S-008 Crosswalk8'-0"AS SHOWN ON PLANS 2'-0" 2'-0" WHITE THERMOPLASTIC REVISED 12/19/2014 REVISED 4/23/15S-024S-024 ADA RAMP HANDRAIL1 12 N.T.S. ADA COMPLIANT RAMP HANDRAIL HANDRAIL TO BE MANUFACTURED BY 'THOMPSON FABRICATING L.L.C. (OR EQUAL) 338"1516"278"1' MIN. 1' MIN. 36" MIN.34" - 38"POST #ASF FITTING UPPER RETURN LOWER RETURN POST 516" ALUM. RIVET NUT ALUM. PIPE CAP #TC-1 OR #TC-2 112" SCH. 40 ALUMINUM PIPE SPRING LOCK WASHER (S.S.) 14" ROUND HEAD MACHINE SCREW (S.S.) 516" SOCKET HEAD CAP SCREW (S.S.) HI-COLLAR SPRING LOCK WASHER (S.S.) CAST ALUM. RAIL SUPPORT #ASF-2 CAST ALUM. POST ADAPTER #ASF-1 P:\AutoCADD Projects\2022\22101-Vermont Commons\1-CADD Files-22101\dwg\22101 - Site.dwg, C2.0, 3/16/2022 3:15:35 PM DSM DSM MAB NTS 22101 C3.0 03/18/2022 LOCATION MAP 1" = 2000' VERMONT COMMONS SCHOOL 75 GREEN MOUNTAIN DRIVE SOUTH BURLINGTON VERMONT 05403 SITE IMPROVEMENTS SPECIFICATIONS PROJECT LOCATION 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 7 55 GREEN MOUNTAIN DRIVE SOUTH BURLINGTON VERMONT 05403 P:\AutoCADD Projects\2022\22101-Vermont Commons\1-CADD Files-22101\dwg\22101 - Site.dwg, C3.0, 3/16/2022 3:16:25 PM DSM DSM MAB NTS 22101 C3.1 03/18/2022 LOCATION MAP 1" = 2000' VERMONT COMMONS SCHOOL 75 GREEN MOUNTAIN DRIVE SOUTH BURLINGTON VERMONT 05403 SITE IMPROVEMENTS SPECIFICATIONS PROJECT LOCATION 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 7 55 GREEN MOUNTAIN DRIVE SOUTH BURLINGTON VERMONT 05403 P:\AutoCADD Projects\2022\22101-Vermont Commons\1-CADD Files-22101\dwg\22101 - Site.dwg, C3.1, 3/18/2022 10:01:34 AM DSM DSM MAB NTS 22101 C3.2 03/18/2022 VERMONT COMMONS SCHOOL 75 GREEN MOUNTAIN DRIVE SOUTH BURLINGTON VERMONT 05403 SITE IMPROVEMENTS EPSC NOTES AND 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 55 GREEN MOUNTAIN DRIVE SOUTH BURLINGTON VERMONT 05403 E-001 EC SheetN.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 MIRAFI 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 Introduction 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.Demarcate Limits of Disturbance Purpose: Delineating the site will help to: limit the area of disturbance to only what is necessary for construction, prevent unauthorized disturbance, preserve existing vegetation, and limit erosion potential on the site. Requirement: You must physically mark the limits of construction activity using one of the methods described below. How to comply: Before initiating any earth disturbing activities, install a perimeter fence, orange barrier tape, or flagging on stakes or trees to physically demarcate the approved limits of earth disturbance. 2.Pollution Prevention Purpose: Many construction sites require storage of chemicals and materials that have detrimental effects if released into our waterways. A storage plan for these potential pollution sources as well as a spill prevention and clean up plan are required to mitigate these risks. Requirement: Design, install, implement, and maintain effective pollution prevention measures to minimize the discharge of pollutants. At a minimum, such measures must be designed, installed, implemented and maintained in accordance with the following requirements. How to comply: 1. Minimize the exposure of the following to precipitation and to stormwater: building materials, building products, construction wastes, trash, landscape materials, fertilizers, pesticides, herbicides, detergents, sanitary waste, and other materials present on the site. 2. Minimization of exposure is not required in cases where the exposure to precipitation and to stormwater will not result in a discharge of pollutants, or where exposure of a specific material or product poses little risk of stormwater contamination (such as final products and materials intended for outdoor use). 3.Limit Concurrent Earth Disturbance Purpose: Limit the amount of soil exposed at one time to reduce the potential erosion on the construction site. Requirement: The maximum area of concurrent earth disturbance is specified on the site's written authorization to discharge. Earth disturbance at any one time cannot exceed the maximum concurrent disturbance identified in the authorization. Areas that are at final stabilization ornthat have been temporarily stabilized in accordance with Section 4 of this handbook, are not counted toward the maximum concurrent disturbance area. How to comply: Plan ahead and phase the construction activities to ensure that no more than the permitted maximum concurrent acreage is disturbed and unstabilized at one time. Be sure to properly stabilize exposed soil using one of the methods introduced in Section 4 of this handbook before beginning work in a new section of the site. 4.Site Stabilization Purpose: Seeding and mulching, applying erosion control matting, and hydroseeding are all methods to temporarily stabilize exposed soil and prevent soil erosion prior to vegetative growth. Mulches and matting protect the soil surface while grass is establishing. Areas of earth disturbance may also be stabilized with stone, such as rip-rap or gravel, or other impervious surfaces such as pavement and concrete. Requirements for Temporary Stabilization: All areas of earth disturbance must have temporary or final stabilization within 14 days of initial disturbance, as stated in the project authorization. After this time, disturbed areas must be temporarily stabilized or permanently stabilized in advance of any runoff producing event. A runoff producing event is an event that produces runoff from the construction site. The following exception applies: Temporary 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), provided any dewatering, if necessary, is conducted in accordance with Part 13. How to comply: As required by the authorization, temporary stabilization for areas of earth disturbance shall be completed utilizing one or more of the methods below: Straw Mulch Mulching Rates April 16 - Oct. 14 -- Straw: 1 inch deep (1-2 bales/1,000 s.f.) Oct. 15 - April 15 -- Straw: 2 inch deep (2-4 bales/1,000 s.f.) *seed may also be incorporated Wood Chip Mulch or Stump Grindings Cover entire area with 2-7 inches or more of wood chip mulch or stump grindings. Hydroseed As per manufacturer's instructions. Must include mulch component. Not acceptable stabilization for winter construction period. Requirements for Dust Control: Construction roads, access points, and other disturbed areas subject to surface dust movement and dust blowing during dry periods where off-site damage may occur if dust is not controlled shall be sprayed with water to prevent dust mobilization. Chemical applications, including the use of chloride, shall not be applied without written approval from the VT DEC. Requirements for Final Stabilization: All areas of disturbance must have permanent stabilization within 48 hours of reaching final grade. 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. Prepare bare soil for seeding by grading the top 4 to 6 inches of soil and removing any large rocks or debris, and apply seed per suppliers specifications. 5.Stabilized Construction Access Purpose: A stabilized construction access helps remove mud and sediment from vehicles and equipment to prevent tracking onto streets. Requirements: If there will be any vehicle or equipment traffic off of the construction site, you must install a stabilized construction access at the start of construction. How to install: Rock Size: Use a mix of 1 to 4 inch stone Depth: 8 inches minimum Width: 12 feet minimum, flared at road for vehicle turning Length: 40 feet minimum (or length of driveway for residential projects, if shorter) Geotextile: Place filter cloth under entire stone bed Maintenance: Redress with clean stone or scarify to open voids as required to keep sediment from tracking onto the street. ·Where sediment has been tracked-out from your site onto paved roads, sidewalks, or other paved areas outside of your site, remove the deposited sediment by the end of the same business day in which the track-out occurs or by the end of the next business day if track-out occurs on a non-business day. ·Remove the track-out by sweeping, shoveling, or vacuuming these surfaces, or by using other similarly effective means of sediment removal. ·You are prohibited from hosing or sweeping tracked out sediment into any stormwater conveyance, storm drain inlet, or water of the state. 6.Divert Upland Runoff Purpose: Diversion berms intercept stormwater runoff contributing from above the construction site and direct it around the disturbed area. This prevents offsite runoff from entering the construction site, thus reducing the potential for erosion and reducing the drainage area contributing to the site. Requirements: If stormwater runoff contributes to the construction site from upslope areas and the site meets the following two conditions, you are required to first install a diversion berm and stabilized swale before disturbing any additional soil. 1. One or more acres of soil will be disturbed at any one time. 2. Average slope of the disturbed area is 20% or steeper.* Diversion Berm installation: 1. Construct berm to the minimum specification above. 2. Compact the berm with a shovel or earth-moving equipment. 3. Seed and mulch berm or cover with erosion control matting immediately after installation. 4. Stabilize the flow channel with seed and mulch or erosion control matting. Line the channel with 4 inch stone if the channel slope is greater than 20%. 5. Ensure the berm drains to an outlet stabilized with ripra p. Ensure that there is no erosion at the outlet. 6. The diversion berm shall remain in place until the disturbed areas are completely stabilized. 7.Install Perimeter Controls Purpose: Silt Fence and Erosion Control Berms intercept runoff and allow suspended sediment to settle or filter out. Filter Socks and Straw Wattles also filter construction runoff and are acceptable for use in specific situations. Silt Fence, Erosion Control Berms, Filter Socks and Straw Wattles are all acceptable perimeter controls based on site specific conditions. Permittee(s) must ensure the right practice is selected for erosion prevention and sediment control. Requirements: Perimeter controls must be installed: ·On the downhill side of the construction activities ·Between any ditch, swale, storm drain, or surface water and the disturbed soil ·Perimeter controls not labeled as biodegradable shall be removed once the drainage area has reached final stabilization How to Comply: Select and install a perimeter control from the following options: Silt Fence, Erosion Control Berms, Filter Socks, or Straw Wattles. Where to place: ·Place perimeter controls on the downhill side of disturbed soil. If space is available, place perimeter control 10 ft from the bottom of the slope, otherwise place along the contour at the bottom of the slope. ·Ensure the perimeter control catches all runoff from distrubed soil. ·Maximum drainage area is¼ acre for 100 feet of silt fence and erosion control berm. ·Install perimeter controls across the slope (not up and down slope) ·Install multiplerows of perimeter control on long slopes to intercept flow. ·Do not install perimeter controls across ditches, channels, or streams. ·Maximum slope length (in feet) above a filter sock or straw wattle Silt Fence A temporary barrier of geotextile fabric installed on the contours across a project site to intercept sediment laden runoff from small drainage areas of disturbed soil. Silt Fence Installation: ·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 ·Gravel can be used to create ground contact with filter fabric when bedrock, ledge, or nearby tree roots do not allow for trenching. (A secondary perimeter control can be effective in these locations as well.) Silt Fence Maintenance: Remove accumulated sediment before it is halfway up the fence. Ensure that silt fence is trenched in ground and there are no gaps. Replace any silt fence that is torn, ripped, or otherwise damaged that 8.Storm Inlet Protection Purpose: Existing or new storm inlets on construction sites constitute a site perimeter and must be protected from sediment laden runoff. The practices below allow stormwater to settle and filter through the practice and not bypass the in let entirely. Requirements: Stormwater inlets shall be 4 inches above grade or an acceptable inlet control/protection should be installed. Inlet Protection Installation: Proprietary Inlet Protection: Shall provide for storage and removal of sediment and be sized appropriately for the drainage area, while allowing stormwater to filter through. These may be used if installed and maintained in accordance with the manufacturer's specifications. Stone and Block Inlet Protection: Concrete blocks placed around an inlet with a circle of filtering stone sloped against the blocks. Filter Fabric and Stone Inlet Protection: Vertical filter fabric installed around drop inlet with stone around fabric for stormwater filtering and creating ground contact with filter fabric. Alternatively, fabric may be buried below ground. 9.Water Bars Purpose: Some sites may benefit from the use of water bars on the construction site. When installed these may capture and redirect runoff to a stable low gradient location. Water bars limit the erosive velocity of water by diverting surface runoff at pre-designed intervals. Requirements: These can be constructed per the following detail, with side slopes no steeper than 4:1 where vehicles cross with a minimum design height of 12 inches, measured from channel bottom to ridge top. Water Bar installation: Water bars should have stable outlets, either natural or constructed. The spacing should follow Table 1: 10.Slow Down Channelized Runoff Purpose: Stone check dams reduce erosion in drainage channels by slowing down the stormwater flow. Requirements: If there is a concentrated flow(e.g. in a ditch or channel) of stormwater on your site, then you are required to install stone check dams. Hay bales and silt fence must not be used as check dams. Check Dam installation: Height: No greater than 2 feet. Center of dam should be 9 inches lower than the side elevation Side slopes: 2:1 or flatter (see p.63 for slope calculation) Stone size: Use a mixture of 2 to 9 inch stone; the larger stone should act as armoring, while the smaller stone helps to filter the channelized runoff. The small stone should be placed primarily in the interior of the check dam and the large stone should be placed in an armoring layer on the outside. 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. Check Dam Maintenance: Correct all observed damage immediately after every ru naff event. Remove all sediment accumulated behind the check dams and dispose of in an upland location. If significant erosion is observed between check dams, the channel shall be stone lined. Rock Outlet Protection: Waterways or outlets with concentrated stormwater runoff shall be stabilized with riprap, proprietary stabilization product or permanent material. This additional stabilization is applicable in areas where the channel slope and velocity or soil type require additional stabilization. All outlets from concentrated stormwater flows will require a stabilized bed. Stone shall be sized so it is not mobilized during high flows. 11.Slope Stabilization Purpose: Surface covering designed to protect and stabilize an area prone to erosion where seeding and mulching may be inadequate, generally slopes 3:1 or greater. The erosion potential may be due solely to slope angle; however, a more gradual slope and poor soil structure can also require additional stabilization. Requirements for Temporary Stabilization: Use of one of the listed slope protection practices below on slopes 3:1 and greater or as needed on flatter slopes based on soil type. Riprap: A layer of stone designed to protect and stabilize areas subject to erosion.Rolled Erosion Control Product: A preformed protective blanket of straw or other plant residue, formed into a mat, with a supporting mesh framework on one or both sides. This mesh cannot be made of a material with welded joints. Erosion Control Matting: Install per manufacturer's instructions. 12.Winter Construction Requirements: October 15 - April 15 Purpose: 'Winter construction' as discussed here, describes the period from October 15 through April 15, when erosion prevention and sediment control is significantly more difficult. There are specific requirements for sites that conduct earth disturbance during the defined Winter Construction Period and for sites where disturbed areas have not reached final stabilization by October 15. 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. A construction site can be managed to anticipate these conditions to prevent erosion and thus minimize the risk to water quality during this time period. Requirements for Winter Shutdown: For projects or areas of a site that will have completed earth disturbance activities prior to the winter construction period (October 15 through April 15), the following requirements must be adhered to: 1. For areas to be stabilized for the winter through the establishment of vegetation, seeding and mulching shall be completed no later than September 15 to ensure adequate growth and cover before the start of the winter period. 2. If seeding is not completed by September 15, additional non-vegetative protection must be used to stabilize the site for the winter period. Areas of disturbance not seeded and mulched by September 15 are required to temporarily stabilize by one of the following methods: Implement Rolled Erosion Control Products (i.e. matting) over the areas of earth disturbance. Apply a 2" mulch layer to areas of earth disturbance, equivalent to double the standard rate. Mulch should be tracked in open areas vulnerable to wind. Seeding with winter rye is recommended to allow for early germination during wet spring conditions. Requirements for Winter Construction If construction activities involving earth disturbance continue into the winter construction period, the following requirements apply: 1. Enlarged access points, stabilized to provide for snow stockpiling. 2. Snow shall be managed with adequate storage and control of meltwater, requiring cleared snow to be stored down slope of all areas of disturbance and out of stormwater treatment structures. 3. For areas of disturbance within 100 ft of a waterbody, the following must be installed across the slope, down gradient of the earth disturbance: a combination of one practice from group A placed in front of a practice from group B, or two group B practices, or a single row of Reinforced Silt Fence 4. Drainage structures must be kept open and free of snow and ice dams. 5. Silt fence and other practices requiring earth disturbance must be installed ahead of frozen ground. 6. Mulch used for temporary stabilization must be applied at a minimum of 2 inches with an 80-90% cover. 7. To ensure cover of disturbed soil in advance of a precipitation or melt event, areas of disturbed soil must be stabilized prior to any runoff producing event. Stabilization is not required if the work is occuring in a self-contained excavation (i.e. no outlet) with a depth of 2 feet or greater (e.g. house foundation excavation, utility trenches), provided any dewatering, if necessary, is conducted in accordance with Part 13. 8. Prior to stabilization, snow or ice must be removed to the extent practicable. 9. Use stone to stabilize areas such as the perimeter of buildings under construction or where construction vehicle traffic is anticipated. Stone paths should be sufficient width to accommodate vehicle or equipment traffic. 13.Dewatering Activities Purpose: To minimize and prevent discharges of sediment as a result of dewatering activities. Requirements: Stormwater and groundwater from dewatering activities shall be uncontaminated and shall be filtered or passed through a sediment trapping device, or both, and routed in a manner that does not result in visually turbid discharges to waters. Pump intake for dewatering must be at or near the surface of the ponding area to prevent disturbance of the settled material. Visually turbid water must not be pumped directly to storm drains or other conveyance that leads to waters without implementing one or more of the practices described below. How to comply: Implement one or more of the following practices when dewatering: Implement sock filters or sediment filter bags on dewatering pump discharge hoses or pipes. Route dewatering pump into silt fence enclosures or into staked hay bale enclosures lined with fabric. Route dewatering pump to vegetated area at least 50 feet from surface waters and at a slope no greater than 5%. Remove accumulated sediment after the water has dispersed or infiltrated and stabilize the area with seed and mulch as necessary. A sufficient area of vegetation greatly improves the efficacy of filtering/settling of turbid water discharged from a dewatering enclosure. 14.Concrete Washout Purpose: Concrete wash water often contains a slurry of heavy metals, can be caustic, and has a high pH. As a result, concrete washwater is not a permitted discharge. Requirements: Concrete washwater and excess washout concrete should go in a lined washout. This washout should be accessible to the cement truck and at least 50 feet away from stormwater inlets and surface water. Concrete Washout Installation: If cement washout is going to occur on site, a lined concrete washout as shown below shall be used onsite. Care should be given to assure that the washout does not overtop during a storm event. Proprietary lined and contained concrete washout basins may also be utilized in accordance with manufacturer's specifications. Concrete Washout Maintenance: Concrete washout shall be pumped to a concrete truck as necessary, for disposal or reuse at a batch plant. Washout may also be allowed to evaporate/harden for disposal in accordance with all applicable local, state, and federal regulations. 15.Permanent Controls Permanent stormwater treatment practices are constructed to maintain water quality, preserve existing water table elevations, prevent downstream flooding, and are often required for a project under a Vermont operational stormwater discharge permit applicable to the construction or redevelopment of impervious surfaces.* Permanent Stormwater Treatment Practices (STPs) include infiltration and filtering practices as well as detention ponds and treatment wetlands. It is critical that infiltration practices do not receive runoff until the site area has reached final stabilization. The outlet of permanent controls that are used as temporary storage and sediment basins during construction constitutes a potential discharge point and therefore must be managed to minimize and prevent sediment laden stormwater discharges. These practices will often need to be reshaped to meet the operational design criteria for volumes, grades and geometry once final grading and stabilization has occurred. 16.Inspection, Maintenance, and Discharge Reporting Site inspections are required to ensure that all erosion prevention and sediment control practices are sufficient and functioning properly. Regular inspections and maintenance of practices will help to reduce costly repairs and minimize the risk to water quality from construction stormwater discharges. Requirements: Inspect the site at least once every 7 days and after every rainfall or snowmelt that results in stormwater runoff. Perform maintenance to ensure that practices are functioning according to the specifications outlined in this handbook. In the event of a visibly turbid discharge from the construction site, you must take immediate action to inspect and maintain existing erosion prevention and sediment control practices. Additional erosion prevention and sediment control measures must be installed as necessary, including temporary stabilization, to minimize and prevent the discharge of sediment laden stormwater runoff. If after maintaining and supplementing BMPs, a discharge of visibly discolored stormwater from the construction site to surface waters continues, the permittee is required to notify DEC within 24 hours. While documentation of a routine inspection is not required, example inspection forms and forms for required discharge reporting are available at the Stormwater Program website. Permittees shall review Construction General Permit 3-9020 for all discharge reporting requirements. A copy of the Low Risk Site Handbook shall be kept on-site. Daily inspections are required from October 15 through April 15. MULCH NOTE: MULCH FOR PURPOSES OTHER THAN HYDROSEEDING WILL BE CLEAN STRAW, FREE FROM WEEDS. HAY MULCH WILL NOT BE ALLOWED TO AVOID THE SPREAD OF NON-NATIVE SPECIES SUCH AS WILD PARSNIP.P:\AutoCADD Projects\2022\22101-Vermont Commons\1-CADD Files-22101\dwg\22101 - Site.dwg, C3.2, 3/18/2022 10:03:43 AM 1 2 3 4 5 A B C D E F 50C (10' -0") 50C (10' -0") 50C (10' -0") 50C (8' -0") CLEAR 5'-0" 59 (9' -0") 50C (10' -0") 104 102 101 100 CLEAR7'-0"ALIGN FINISHES 103 EXISTING RAIN LEADER AND COLUMN ENCLOSURE NEW/ RECYCLED CARPET AT THIS ROOM EXISTING ROOM DIVIDER7'-0" H PADDING 7'-0" H PADDING AT ALL COLUMNS 7'-0" HIGH PADDING AT WALLS 7'-0" HIGH PADDING AT WALLS 7'-0" HIGH PADDING AT WALLS ALIGN FINISHES NEW FLOORING AT GYMNASIUM AREA (23) LOCKERS/CUBBIES (46) IF DOUBLE HEIGHT 3'-1"3'-1"3'-1"4'-0"6'-0"3'-1" TOILET PARTITIONS 3'-1"5'-6"4'-0" 3'-1" 4'-0"3'-1"5'-6"6'-0"INFILL AT DEMO'D DOOR FULL HEIGHT GYMNASIUM CURTAIN FULL HEIGHT GYMNASIUM CURTAIN FULL HEIGHT GYMNASIUM CURTAIN EXISTING SPRINKLER CLOSET EXISTING ELECTRICAL PANELS 6,094 SF GYMNASIUM 130 636 SF ENTRY 100 369 SF GYM STORAGE 133 374 SF LOCKER ROOM 140 123 SF CHANGING ROOM B 142 178 SF CHANGING ROOM C 143 58 SF STORAGE 134 180 SF OFFICE 144 162 SF OFFICE 145 160 SF OFFICE 146 163 SF OFFICE 147 35 SF VESTIBULE 130A 44 SF VEST. 100A 185 SF OFFICE 110 184 SF OFFICE 111 195 SF OFFICE 112184 SF OFFICE 113 254 SF OFFICE 114479 SF CLASSROOM 116 172 SF WOMENS ROOM 122 174 SF MENS ROOM 123 1,020 SF CORRIDOR 102 590 SF CLASSROOM 126 308 SF CLASSROOM 127 462 SF STORAGE 128 112 SF OFFICE 129 277 SF BREAK ROOM 121 58 SF WC 124 1,404 SF CORRIDOR 101 703 SF CLASSROOM 120 61 SF WC 125 228 SF CHANGING ROOM A 141 RELOCATE EXISTING CASEWORK TO BREAK ROOM, (OR NEW CASEWORK?) 6'-8 1/2" 50C (10' -0") 50C (10' -0") 120B 50D (10' -0") (2) NEW RESTROOMS 50C (10' -0") 124 NEW PARTITIONS, ALIGN FINISHES WITH EXISTING INFILL DEMO'D DOOR NEW DOORS 525 Hercules Drive Suite Two Colchester, VT 05446 802.655.5020 802.622.6567 wiemannlamphere.com SCALE: DRAWN BY:CHECKED BY: PROJECT NO: SHEET TITLE: SHEET NUMBER:PRINTED: FILENAME: PROGRESS PRINT DATE: 1/8" = 1'-0"12/15/2021 3:40:09 PMC:\Users\AAftuck\Documents\2021066_R22_SD_ARCH_aaftuck.rvt12/15/2021 3:40:09 PM55 GREEN MOUNTAIN DRIVECheckerAuthor 2021066 FLOOR PLAN- COMPLETE A1.31VERMONTSOUTH BURLINGTONPROJECT STATUSNOT FOR CONSTRUCTIONVT COMMONS#DATE REVISION DESCRIPTION A1.31 1/8" = 1'-0" 1 LEVEL 1-COMPLETE 1 2 3 4 5 A B C D E F3'-8"4'-6 15/16"EXISTING SPRINKLER CLOSET EXISTING ELECTRICAL PANELS WT 50 5/8" GYPSUM WALL BOARD FULL DEPTH SOUND ATTENUATING INSULATION, REF. SPECS 3 5/8" MTL. STUD, REF. SPEC 5/8" GYPSUM WALL BOARD 50B 50C 50D SIM. TO WT EXCEPT: FULL DEPTH SOUND ATTENUATING NOT REQUIRED, NOTE: ** 1 HR RATING STILL REQUIRED** 50 1 HOUR RATED WALL CONST. REFERENCE UL U465 SIM. TO WT EXCEPT: 1 HOUR FIRE RATING NOT REQUIRED50 SIM. TO WT EXCEPT: FULL DEPTH SOUND ATTENUATING NOT REQUIRED, 1 HOUR FIRE RATING NOT REQUIRED 50 4 7/8" IDENTIFY ALL FIRE AND SMOKE RATED PARTITIONS PER SPECIFICATIONS AND IBC REQUIREMENTS WT 5/8" GYPSUM WALL BOARD 1 5/8" MTL. STUD, REF. SPEC 59B 59C SIM. TO WT EXCEPT: 2 1/2" METAL STUDS, REF. SPEC59 SIM. TO WT EXCEPT: 3 5/8" METAL STUDS, REF. SPEC59 59 59D SIM. TO WT ADD SOUND ATTENUATION INSULATION WITH SPECIFIED BATT SUPPORT SYSTEM 59C 525 Hercules Drive Suite Two Colchester, VT 05446 802.655.5020 802.622.6567 wiemannlamphere.com SCALE: DRAWN BY:CHECKED BY: PROJECT NO: SHEET TITLE: SHEET NUMBER:PRINTED:FILENAME:PROGRESS PRINT DATE: As indicated 12/15/2021 3:40:04 PM C:\Users\AAftuck\Documents\2021066_R22_SD_ARCH_aaftuck.rvt12/15/2021 3:40:04 PM55 GREEN MOUNTAIN DRIVECheckerAuthor 2021066 EXISTING FLOOR PLAN A1.01VERMONTSOUTH BURLINGTONPROJECT STATUSNOT FOR CONSTRUCTIONVT COMMONS#DATE REVISION DESCRIPTION A1.01 1/8" = 1'-0" 1 LEVEL 1-EXISTING A1.01 1" = 1'-0" 2 WT-50 A1.01 1" = 1'-0" 3 WT-59 (ONE SIDED ASSEMBLY)