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HomeMy WebLinkAbout18-22 Site PlanPRIOR TO COMMENCING WORKPOLICE - FIRE - RESCUE1-800-552-7001CONTACT "MISS UTILITY" ATSITE PLAN #18-22FREDERICK COUNTY, VIRGINIAGore Citizen's Convenience CenterBACK CREEK MAGISTERIAL DISTRICTSITEEMERGENCYCALL 911RESPONSIBLE LAND DISTURBERDATESITE PLAN VALID FOR FIVE (5) YEARS FROM APPROVAL DATEAPPROVED BY THE FREDERICK COUNTY ZONING ADMINISTRATORSCALE:SHEETOFPLAN DATE No. 41423FREDERICKCOUNTYVIRGINIA Department of Public Works 107 North Kent Street, Winchester VA 540-665-5643 COVER SHEET GORE CITIZEN'S CONVENIENCE SITESITE PLAN BACK CREEK MAGISTERAL DISTRICT FREDERICK COUNTY, VA19SP-00031.2.3.4.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20. VICINITY MAPSCALE : 1"= 1,000'SHEET INDEX1 COVER SHEET2 GENERAL NOTES AD DETAILS3 EXISTING CONDITIONS PLANEROSION AND SEDIMENT CONTROL PLAN PHASE 1EROSION AND SEDIMENT CONTROL PLAN PHASE 2EROSION AND SEDIMENT CONTROL DETAILSRETAINING WALL DETAILSUTILITY PROFILES AND COMPUTATIONSSWM PREDEVELOPMENT MAPSWM POST DEVELOPMENT MAP AND NARRATIVELANDSCAPE PLANPAVEMENT PLANSIGHT DISTANCE PROFILE678910111213144 GRADING PLAN5 DESCRIPTIONDATEPLAN STATUSLEGEND□□□””SCALE:SHEETOFPLAN DATE No. 41423FREDERICKCOUNTYVIRGINIA Department of Public Works 107 North Kent Street, Winchester VA 540-665-5643 GENERAL NOTES AND DETAILS GORE CITIZEN'S CONVENIENCE SITESITE PLAN BACK CREEK MAGISTERAL DISTRICT FREDERICK COUNTY, VA29SP-0003 C1C2N 84°32'58" E 51.67'S 17°25 '56" E 112 .21 ' S 5 3 ° 1 8 ' 1 3 " E 9 1 . 9 2 'S 22 °14 '27 " E 97 .58 '22.96 'N 18°59 '31 " WN 16°47 '22" W 260 .19 ' SPIKE 9002 N=7142461.02 E=11530052.53 ELEV.=718.70 41E 44C 10 SCALE: SHEET OFPLAN DATENo. 41423FREDERICKCOUNTYVIRGINIA Department of Public Works107 North Kent Street, Winchester VA 540-665-5643EXISTING CONDITIONSGORE CITIZEN'S CONVENIENCE SITESITE PLANBACK CREEK MAGISTERAL DISTRICTFREDERICK COUNTY, VA3 9 SP-0003 1"=20' SCALE - 1 inch = ft. 0 20 40 20 6010 A A' C1C2N 84°32'58" E 51.67'S 17°25 '56" E 112 .21 ' S 5 3 ° 1 8 ' 1 3 " E 9 1 . 9 2 'S 22 °14 '27 " E 97 .58 '22.96 'N 18°59 '31 " WN 16°47 '22" W 260 .19 ' SPIKE 9002 N=7142461.02 E=11530052.53 ELEV.=718.70 SCALE: SHEET OFPLAN DATENo. 41423FREDERICKCOUNTYVIRGINIA Department of Public Works107 North Kent Street, Winchester VA 540-665-5643GRADING PLANGORE CITIZEN'S CONVENIENCE SITESITE PLANBACK CREEK MAGISTERAL DISTRICTFREDERICK COUNTY, VA4 9 SP-0003 1"=20' SCALE - 1 inch = ft. 0 20 40 20 6010 CONCRETE AREAS HEAVY DUTY PAVING FRENCH DRAIN DETAIL C1C2N 84°32'58" E 51.67'S 17°25 '56" E 112 .21 ' S 5 3 ° 1 8 ' 1 3 " E 9 1 . 9 2 'S 22 °14 '27 " E 97 .58 '22.96 'N 18°59 '31 " WN 16°47 '22" W 260 .19 ' SPIKE 9002 N=7142461.02 E=11530052.53 ELEV.=718.70 SCALE: SHEET OFPLAN DATENo. 41423FREDERICKCOUNTYVIRGINIA Department of Public Works107 North Kent Street, Winchester VA 540-665-5643PHASE 1 E&S PLANGORE CITIZEN'S CONVENIENCE SITESITE PLANBACK CREEK MAGISTERAL DISTRICTFREDERICK COUNTY, VA5 9 SP-0003 1"=20' SCALE - 1 inch = ft. 0 30 60 30 9015 C1C2N 84°32'58" E 51.67'S 17°25 '56" E 112 .21 ' S 5 3 ° 1 8 ' 1 3 " E 9 1 . 9 2 'S 22 °14 '27 " E 97 .58 '22.96 'N 18°59 '31 " WN 16°47 '22" W 260 .19 ' SPIKE 9002 N=7142461.02 E=11530052.53 ELEV.=718.70 SCALE: SHEET OFPLAN DATENo. 41423FREDERICKCOUNTYVIRGINIA Department of Public Works107 North Kent Street, Winchester VA 540-665-5643PHASE 2 E&S PLANGORE CITIZEN'S CONVENIENCE SITESITE PLANBACK CREEK MAGISTERAL DISTRICTFREDERICK COUNTY, VA6 9 SP-0003 1"=20' SCALE - 1 inch = ft. 0 30 60 30 9015 SCALE: SHEET OFPLAN DATENo. 41423FREDERICKCOUNTYVIRGINIA Department of Public Works107 North Kent Street, Winchester VA 540-665-5643E&S DETAILSGORE CITIZEN'S CONVENIENCE SITESITE PLANBACK CREEK MAGISTERAL DISTRICTFREDERICK COUNTY, VA7 9 SP-0003 N/A ** Use seasonal nurse crop in accordance with seeding dates as stated below: March, April through May 15th........................................Annual Rye May 16th through August 15th.....................................Foxtail Millet August 16th through September, October........................Annual Rye November through February..............................................Winter Rye *** If flatpea is used, increase to 30lbs./acre. All legume seed must be properly inoculated. Weeping Lovegrass may also be included in any slope or low-maintenance mixture during warmer seeding periods; add 10-20lbs./acres in mixes. 200-250 lbs. Total lbs. Per Acre Commercial or Residential -Kentucky 31 or Turf Type Tall Fescue -Improved Perennial Ryegrass * -Kentucky Bluegrass * Perennial Ryegrass will germinate faster and at lower soil temperatures than fescue, thereby providing cover and erosion resistance for seedbed. Low-Maintenance Slope (Steeper than 3:1) -Kentucky 31 Fescue -Red Top Grass -Seasonal Nurse Crop ** -Crownvetch *** -Kentucky 31 Fescue -Red Top Grass -Seasonal Nurse Crop ** General Slope (3:1 or less) High-Maintenance Lawn Minimum of three (3) up to five (5) varieties of bluegrass from approved list for use in Virginia. 150 lbs. 20 lbs. 108 lbs. 20 lbs. 2 lbs. 125 lbs. 150 lbs. 20 lbs. 2 lbs. 128 lbs. 0-10 % 0-10 % 90-100 % Minimum Lawn Care SITE SPECIFIC SEEDING MIXTURES FOR APPALACHIAN / MOUNTAIN AREA TABLE 3.32-C Do not use as a mulch for winter cover or during hot, dry periods.* Apply as slurry. * When fiber mulch is the only available mulch during periods when straw should be used, apply at a minimum rate of 2000 lbs./ac. or 45lbs./1000 s.f. Free of coarse matter. Air-dried. Do not use in fine turf areas. Apply with a mulch blower, chip handler, or by hand. Free of coarse matter. Air-dried. Treat with 12lbs. Nitrogen per ton. Do not use in fine turf areas. Apply with a mulch blower, chip handler, or by hand. Cut or shredded in 4-6'' lengths. Air-dried. Do not use in fine turf areas. apply with a mulch blower or by hand. Free from weeds and coarse matter. Must be anchored. Spread with mulch blower or by hand. NOTES: ORGANIC MULCH MATERIALS AND APPLICATION RATES Source: Va. DSWC Wood Chips Fiber Mulch Bark Chips or Shredded Bark 50-70 cu. yds.1-2 cu. yds. 4-6 tons Corn Stalks Minimum 1500lbs. 4-6 tons 185-275 lbs. 35 lbs. 185-275 lbs. RATES: TABLE 3.35-A (Minimum 2 tons for winter cover) Straw or Hay MULCHES:Per Acre 1.5-2 Tons Per 1000 sq.ft. 70-90 lbs. 50/50 Mix of Annual Ryegrass (Lolium multi-florum) & Cereal (Winter) Rye (Secale cereale) Source: Va. DSWCMAY 1-AUG. 31 FEB. 16-APR. 30 German Millet (Setaria italica) Annual Ryegrass (Lolium multi-florum) 50 60-100 "QUICK REFERENCE FOR ALL REGIONS" ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS SEPT. 1-FEB. 15 Planting Dates TABLE 3.31-B Species 50-100 Rate (lbs./acre) EROSION & SEDIMENT CONTROL NARRATIVE PROJECT DESCRIPTION The purpose of this project is to expand the Gore Citizen's Convenience Site for the Frederick County Department of Public Works. The site is located in FrederickCounty, Virginia. Approximately 0.77 acres will be disturbed for this project. EXISTING SITE CONDITIONS The proposed site consists of slopes ranging from 2 to 33%. The site is already developed a citizen's convenience center. SOILS (SEE SHEET 3 FOR SOILS MAP) EROSION AND SEDIMENT CONTROL MEASURES Unless otherwise indicated, all vegetative and structural erosion and sediment control practices shall be constructed and maintained according to minimum standardsand specification of the handbook. The minimum standards of the VESCR shall be adhered to unless otherwise waived or approved by a variance. No disturbed area shall be denuded for more than seven (7) days, except for that portion of the site in which work will be continuous beyond seven (7) days. AllTemporary Diversions, Silt Trapping Structures, Silt Fence and other perimeter controls as indicated on the plans, shall be placed in conjunction with clearing andprior to rough grading. CONSTRUCTION SEQUENCING 1. Pre-construction conference.2. Construction shall be sequenced so that grading operations can begin and end as quickly as possible.3. Install the Temporary Gravel Construction Entrance as shown.4. Install the perimeter controls including silt fence, and check dams as shown on the plans.5. Install interior controls as construction advances.6. Provide temporary seeding and mulching to all earthen perimeter controls immediately following grading.7. Install inlet and outlet protection as storm structures are constructed.8. Start re-vegetation as areas are brought to grade or stand idle for more than fourteen (14) days. Construction should progress to allow the sediment traps to bein place for as long as necessary. Sediment traps may be removed in order to complete construction of the project (i.e. the parking area to the north).9. Stabilize the remainder of the disturbed area with permanent seeding. PERMANENT STABILIZATION All areas disturbed by construction shall be stabilized with permanent seeding immediately following finished grading. Seeding shall be done with Kentucky 31 TallRescue according to Std. & Spec. 3.32, Permanent Seeding, of the handbook. Permanent seeded areas shall be protected during establishment with straw mulch. MAINTENANCE All measures are to be inspected daily by the site superintendent. Any damaged controls shall be repaired and/or replaced by the close of the day. No controls areto be removed without the approval of the site inspector. The contractor shall be responsible for any damage or penalties caused by his failure to comply with theerosion and sediment control program or the direction of the site inspector. The design engineer shall be notified of any changes to this program. 1. The check dams will be checked regularly for sediment and cleaned when necessary. 2. The gravel outlets will be checked regularly for sediment buildup, which will prevent drainage. If the gravel is clogged by sediment, it shall be removed andcleaned or replaced. 3. The silt fence barrier will be checked regularly for undermining or deterioration of the fabric. Sediment shall be removed when the level of sediment depositionreaches half way to the top of the barrier. 4. The seeded area will be checked regularly to ensure that a good stand is maintained. Area should be fertilized and reseeded as needed. STRUCTURAL PRACTICES 1. Temporary Construction Entrance - 3.02A gravel pad located at points of vehicular ingress and egress on a construction site to reduce the mud transported onto public roads and other paved areas. 2. Silt Fence - 3.05A temporary sediment barrier consisting of a synthetic filter fabric stretched across and attached to supporting posts and entrenched. 3. Storm Drain Inlet Protection - 3.07A sediment filter or an excavated impounding area around a storm drain drop inlet or curb inlet. 4. Outlet Protection - 3.18The installation of paved and/or rip-rap channel sections and/or stilling basins below storm drain outlets to reduce erosion from scouring at outlets and to reduceflow velocities before stormwater enters receiving channels below these outlets. 5. Riprap - 3.19A permanent, erosion-resistant ground cover of large loose, angular stone with filter fabric or granular underlining. 6. Rock Check Dams - 3.20Small temporary stone dams constructed across a swale or drainage ditch. 1. UNLESS OTHERWISE NOTED, ALL VEGETIVE AND EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED IN ACCORDANCE TO THE MINIMUM STANDARDS AND SPECIFICATIONS OF THE 1992 VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 2. FOR ADDITIONAL DETAILS AND SPECIFICATIONS NOT SHOWN HEREON, REFER TO THE 1992 VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 3. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ONSITE AT ALL TIMES. 4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NOT SHOWN HEREON THAT ARE DEEMED NECESSARY BY THE APPROVING AUTHORITY AND/OR THE SITE INSPECTOR. 5. THE CONTRACTOR SHALL INSPECT ALL EROSION AND SEDIMENT CONTROL DEVICES DAILY. ANY DAMAGED CONTROLS SHALL BE REPAIRED OR REPLACED BY THE CLOSE OF EACH WORKING DAY. 6. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARD IN ADDITION TO OTHER APPLICABLE CRITERIA: a. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. b. EXCAVATION MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. c. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE, OR BOTH, AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OR OFF-SITE PROPERTY. d. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERTY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILZATION. e. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS. f. APPLICABLE SAFTY REGULATIONS SHALL BE COMPLIED WITH. GENERAL EROSION & SEDIMENT CONTROL NOTES 1. Permanent or temporary soil stabilization shall be applied to denuded areas within seven days after final grade is reached on any portion of the site. Temporary soil stabilization shall be applied within seven days to denuded areas that may not be at final grade but will remain dormant for longer than 30 days. Permanent stabilization shall be applied to areas that are to be left dormant for more than one year. 2. During construction of the project, soil stockpiles and borrow areas shall be stabilized or protected with sediment trapping measures. The applicant is responsible for the temporary protection and permanent stabilization of all soil stockpiles on site as well as borrow areas and soil intentionally transported from the project site. 3. A permanent vegetative cover shall be established on denuded areas not otherwise permanently stabilized. Permanent vegetation shall not be considered established until a ground cover is achieved that is uniform, mature enough to survive and will inhibit erosion. 4. Sediment basins and traps, perimeter dikes, sediment barriers and other measures intended to trap sediment shall be constructed as a first step in any land-disturbing activity and shall be made functional before upstream land disturbance takes place. 5. Stabilization measures shall be applied to earthen structures such as dams, dikes and diversions immediately after installation. 6.Sediment traps and sediment basins shall be designed and constructed based upon the total drainage area to be served by the trap or basin. a. The minimum storage capacity of a sediment trap shall be 134 cubic yards per acre of drainage area and the trap shall only control drainage areas less than three acres. b.Surface runoff from disturbed areas that is comprised of flow from drainage areas greater than or equal to three acres shall be controlled by a sediment basin. The minimum storage capacity of a sediment basin shall be 134 cubic yards per acre of drainage area. The outfall system shall, at a minimum, maintain the structural integrity of the basin during a twenty-five year storm of 24-hour duration. Runoff coefficients used in runoff calculations shall correspond to a bare earth condition or those conditions expected to exist while the sediment basin is utilized. 7.Cut and fill slopes shall be designed and constructed in a manner that will minimize erosion. Slopes that are found to be eroding excessively within one year of permanent stabilization shall be provided with additional slope stabilizing measures until the problem is corrected. 8. Concentrated runoff shall not flow down curt or fill slopes unless contained within an adequate temporary or permanent channel, flume or slope drain structure. 9. Whenever water seeps from a slope face, adequate drainage or other protection shall be provided. 10. All storm sewer inlets that are made operable during construction shall be protected so that sediment-laden water cannot enter the conveyance system without first being filtered or otherwise treated to remove sediment. 11.Before newly constructed stormwater conveyance channels or pipes are made operations., adequate outlet protection and any required temporary or permanent channel lining shall be installed in both the conveyance channel and receiving channel. MS-19 EROSION & SEDIMENT CONTROL NOTES 12. When work in a live watercourse is performed, precautions shall be taken to minimize encroachment, control sediment transport and stabilize the work area to the greatest extent possible during construction. Nonerodible material shall be used for the construction of causeways and cofferdams. Earthen fill may be used for these structures if armored by nonerodible cover materials. 13.When a live watercourse must be crossed by construction vehicles more than twice in any six-month period, a temporary vehicular stream crossing constructed of nonerodible material shall be provided. 14. All applicable federal, state and local regulations pertaining to working in or crossing live watercourses shall be met. 15. The bed and banks of a water course shall be stabilized immediately after work in the watercourse is completed. 16. Underground utility lines shall be installed in accordance with the following standards in addition to other applicable criteria: a. No more than 500 linear feet of trench may be opened at one time. b. Excavated material shall be placed on the uphill side of trenches. c. Effluent from dewatering operations shall be filtered or passed through an approved sediment trapping device, or both, and discharged in a manner that does not adversely affect flowing streams or off-site property. d. Material used for backfilling trenches shall be properly compacted in order to minimize erosion and promote stabilization. e. Restabilization shall be accomplished in accordance with these regulations. f.Applicable safety regulations shall be complied with. 17. Where construction vehicle access routes intersect paved or public roads, provisions shall be made to minimize the transport of sediment by vehicular tracking onto the paved surface. Where sediment is transported onto a paved or public road surface, the road surface shall be cleaned thoroughly at the end of each day. Sediment shall be removed from the roads by shoveling or sweeping and transported to a sediment control disposal area. Street washing shall be allowed only after sediment is removed in this manner. This provision shall apply to individual development lots as well as to larger land-disturbing activities. 18.All temporary erosion and sediment control measures shall be removed within 30 days after final site stabilization or after the temporary measures are no longer needed, unless otherwise authorized by the local program authority. Trapped sediment and the disturbed soil areas resulting from the disposition of temporary measures shall be permanently stabilized to prevent further erosion and sedimentation. 19. Properties and waterways downstream from development sites shall be protected from sediment deposition, erosion and damage due to increases in volume, velocity and peak flow rate of stormwater runoff for the stated frequency storm of 24-hour duration in accordance with the following standards and criteria: Craigsville cobbly sandy loam10 SYMBOLMAP MAP UNIT NAME A HYDROLOGIC SOIL GROUP Weikert-Berks channery silt loams, 25 to 65 percent slopes41E Zoar silt loam, 7 to 15 percent slopes44C D C 12'20'727.00725.500+00 0+20 85'0+20723.00718.00717.00TOP OF FOOTERFINISHED GRADE (FRONT)CONCRETERETAINING WALL720.000+3818'727.000+50 20'0+85FINISHED GRADE (REAR)0+55 15'718.00720.00A'A3 strands class III 12"ground clearance 3" max. 1" min. height of brace shall bein accordance withmanufacturer's specifications12"10' (max)gate post12"one tension wireclip each line pole(No. 6 gauge min.) 3/8" min. round rodwith turnbuckleend corner or8'-0"3'-6"concrete footingNo. 11 gauge & 1"beveled galvanizedsteel band withbolt and nut1-5/8" SS-15 top rail 2" OD SS-40 line post2-1/2" mesh, 9 gauge galvanized wire fabrictension wire no. 7 gauge galvanized coil spring wire stretched outtypical spacing between all line posts - shall be used at fence end (as shown above) and gate locationsCorner brace - shall be used when horizontal alignment changes 15° or more- shall be used as detailed above with bracing in both directions2-1/2"OD SS-40 terminal postbarbed wire angled45°3'-0"10' (max)finishedgradeBARBED WIRE SHALL BE ANGLED INWARD TOWARD SITEinward toward site.SCALE:SHEETOFPLAN DATE No. 41423FREDERICKCOUNTYVIRGINIA Department of Public Works 107 North Kent Street, Winchester VA 540-665-5643 WALL DETAILS GORE CITIZEN'S CONVENIENCE SITESITE PLAN BACK CREEK MAGISTERAL DISTRICT FREDERICK COUNTY, VA89SP-0003 AS SHOWN C25 5 5 2 2 2 1 1 1 1 0.5 0.5 SCALE: SHEET OFPLAN DATENo. 41423FREDERICKCOUNTYVIRGINIA Department of Public Works107 North Kent Street, Winchester VA 540-665-5643LANDSCAPING & LIGHTING PLANGORE CITIZEN'S CONVENIENCE SITESITE PLANBACK CREEK MAGISTERAL DISTRICTFREDERICK COUNTY, VA9 9 SP-0003 1"=20' SCALE - 1 inch = ft. 0 20 40 20 6010