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HomeMy WebLinkAboutWPO202200021 Plan - VSMP 2023-01-09Brookville Manoap STOCKTON CREEK SUBDIVISION GENERAL NOTES OWNER: STOCKTON CREEK LLC 455 SECOND STREET, 57H FLOOR CHARLOTTESOLLE, VA 22902 DEVELOPER. RIVERBEND DEVELOPMENT INC. 455 SECOND STREET SE SUITE 200 CHARLOTTESWLLE, VA 22902 ATTN: ALAN TAYLOR ENGINEER: COLLINS ENGINEERING 200 GARRETT ST, SUITE K CHARLOTTESWLLE, VA 22902 (434)293-3719 TAX MAP NO.: 1. 06900-00-00-019BO (DB.5504, PG.614) - 3.64 ACRES 2. 06900-00-00-019CO (DB.5504, PG.614) - 7.70 ACRES J. 06900-00-00-019EO (DB.5504, PG.614) - 4.62 ACRES 4. 06900-00-00-019FO (DB.5504, PG.614) - 4.63 ACRES 5. 06900-00-00-019HO (DB.5504, PG.614) - 11.03 ACRES 6. 06900-00-00-019J0 (DB.5504, PG614) - 8.92 ACRES Z 06900-00-00-050BO (DB.5504, PG.614) - 8.73 ACRES TOTAL AREA: 49.27 AC. ZONING: RA - RURAL AREA -WITH HAZARD OVERLAY DISTRICT ENTRANCE CORRIDOR OVERLAY DISTRICT, & CRITICAL SLOPES OVERLAY DISTRICT DEVELOPMENT RIGHTS: TMP 69-19C, TMP 69-19E, TMP 69-19F, & TMP 69-50B ALL HAVE (2) DEVELOPMENT RIGHTS AND MAY BE FURTHER SUBDIVIDED. TMP 69-19H AND IMP 69-19J BOTH HAVE (4) DEVELOPMENT RIGHTS AND MAY BE FURTHER SUBDIVIDED. TMP 69-19B HAS (2) DEVELOPMENT RIGHTS BUT MAY NOT BE FURTHER SUBDIVIDED N THE CURRENT CONFIGURATION. PROPOSED USE. 15 SINGLE FAMILY DETACHED (RURAL RESIDENTIAL) LOTS OPEN SPACE.• NONE (NOT APPLICABLE) RECREATION AREA: NONE (NOT APPLICABLE) CRITICAL SLOPES: CRITICAL SLOPES ARE LOCATED ON THE PROPERTY AND SHOWN ON THE EXISTING CONDITIONS PLAN SHEET (SHEET 2). NO CRITICAL SLOPES WILL BE IMPACTED WITH THE PROPOSED ROAD DEVELOPMENT AND SUBDIVISION OF THE PROPERTY. BUILDING HEIGHTS. • MAXIMUM BUILDING HEIGHTS SHALL NOT EXCEED 35 FEET SETBACKS: FRONT.- MIN. 75' (ALONG EXISTING PUBLIC R/W) AND 25' (ALONG INTERNAL PRIVATE & PUBLIC STREETS) NO MAXIMUM SETBACK SIDE: MINIMUM - 25' AND NO MAXIMUM REAR: 35' MINIMUM AND NO MAXIMUM SUBDIVISION STREETS: ROADSIDE DITCH WATERSHED: STOCKTON CREEK WATER SUPPLY WATERSHED AGRICULTURAL/ FORESTAL DISTRICT NONE TOPO & SURVEY. TOPOGRAPHY PROVDED BY ROGER RAY & ASSOCIATES, JANUARY 2022. HE BOUNDARY LINE INFORMATION IS PROVDED BY ROGER RAY & ASSOCIATES, AUGUST 2021. INFORMATION FIELD VERIFIED BY COLLINS ENGINEERING IN DECEMBER OF 2021. DATUM: NAD 83 EXISTING VEGETATION. EXISTING FARM LAND WITH CORN CROPS AND PASTURES FOR COWS TREE VEGETATION OVER A PORT70N OF THE PROPERTY, MAINLY ALONG THE STREAM CORRIDORS. (1) EXISTING FARM HOUSE WITH BARNS. LIGHTING: NO LIGHTING IS PROPOSED PARKING: REQUIRED PARKING: 2 OFFSITE PARKING SPACES PER LOT WITHIN THE DRIVEWAY OF THE RESIDENTIAL LOTS PARKING PROVIDED: 2 OFFSITE PARKING SPACES PER LOT WITHIN THE DRIVEWAY OF THE RESIDENTIAL LOTS NOTE: NO FORMAL ON -STREET PARKING IS PROPOSED ALONG THE PROPOSED STREETS AND CUL-DE-SACS. PHASING: THESE PROPERTIES SHALL BE DEVELOPED WITHIN (1) PHASE BURIAL SITES: NO CEMETERIES WERE FOUND DURING A FIELD INVESTIGATION OF THE SITE STREAM BUFFERS THE STREAM BUFFERS SHOWN HEREON SHALL BE MANAGED IN ACCORDANCE WITH THE ALBEMARLE COUNTY WATER PR07ECTION ORDINANCE. SEE SHEET 2 FOR THE LOCA77ON OF THE STREAM BUFFERS. RETAINING WALLS: NO RETAINING WALLS ARE PRPOPOSED. LANDSCAPING: STREET TREES ARE PROPOSED ALONG THE NEIGHBORHOOD STREETS IN ACCORDANCE WITH ALBEMARLE COUNTY LANDSCAPING REQUIREMENTS WITHIN SEC77ON 32.7.9 OF THE COUNTY CODE AND IN ACCORDANCE WITH CHAPTER 14. BUILDING SITES: EACH PARCEL CONTAINS A BUILDING SITE THAT COMPLIES WITH SECTION 4.2.1. OF THE ALBEMARLE COUNTY ZONING ORDINANCE. STREAM BUFFERSAFLOODPLAIN. THERE IS A 100-YEAR FLOODPLAIN ON THE PROPERTY, PER FEMA MAPS 51003CO225D, FEBRUARY 4, 2005. STREAM BUFFER EXISTS, AS SHOWN ON SHEET 2. OFFSITE DISTURBANCE: NO OFFSITE DISTURBANCE IS PROPOSED WITH THIS PLAN NOTES 1) THIS PROPERTY DOES NOT LIE WITHIN AN AGRICULTURAL AND/OR FORESTAL DISTRICT. 2) ONLY (1) DWELLING PER LOT SHALL BE PERMITTED. 3) STREET TREES SHALL BE PROVIDED ALONG ALL THE PUBLIC STREETS 40' O.C. IN ACCORDANCE WITH VDOT AND ALBEMARLE COUNTY STANDARDS. 4) EACH LOT SHALL HAVE AN INDIVIDUAL TRASH CONTAINER WITH PRIVATE TRASH SERVICE FOR PICKUP. 5) THIS PROPERTY IS NOT LOCATED WITHIN A DAM INUNDA77ON ZONE. 6) RETAINING WALLS GREATER THAN 3' IN HEIGHT REQUIRE A SEPARATE BUILDING PERMIT WALLS EXCEEDING 4' IN HEIGHT REQUIRE A STAMPED ENGINEERED DESIGN. WALLS CROSSING LOT LINES REQUIRE AN EASEMENT. 7) ALL WATER LINES, SEWER LINES, AND FIRE LINES FROM THE MAIN TO THE STRUCTURE MUST HAVE A VISUAL INSPECTION PERFORMED BY THE BUILDING DEPARTMENT. WP020220021 WHITEHALL DISTRICT ALBEMARLE COUNTY, VIRGINIA , i LOT \ \ 2.70ACRES \ i SH��I. LAYOUT --------------- _ ---- ----------- LOT 13 o • b `. • '_�.:.�\ / LOT 12 \ \ " • ` . / 2.40 ACRES LOT to \ � \ � \) / '" •..` 4 ," . �. •. . 2.22ACRES LOT14 3.90 ACRES LOT11 \ ��. V A o • ••\ 3 / / 2.74 ACRES / \ LOT 15 239 ACRESLOT 23 / � c'� _ ,�• � 4, vv a 1.90 ACRES i ---- LOT 16 , 2.25 ACRES za9ACREs / // v // / �o0` .•i / \ / ° LOT 17 �♦ ��� 2.07ACRE5 // 6.19ACRES LOT 21 3.10 ACRES / LOT 20 3.46 ACRES z.o ACRES I c*qa rot 2.49 ACRES LOT 3B\� I I \ \\ � LOT 19 L 3.44ACRES IMPERVIOUS AREAS (WITHIN LOD): PROPOSED ROADWAY 50,089 SF PROPOSED DRI VEWA YS 42,996 SF PROPOSED RESIDENCES 31,200 SF PROPOSED SIDEWALKS 0 SF TOTAL 124,285 SF OVERALL ACREAGES TOTAL ACRES OF LOTS. 46.76 AC (94.97) TOTAL ACRES OF OPEN SPACE: 0.00 AC (30.39) GENERAL BUILDING DEPARTMENT NOTES. TOTAL ACRES OF ROW 2.51 AC (5.19) 1. WHERE THE FLOOD LEVEL RIMS OF PLUMBING FIXTURES ARE BELOW THE ELEVATION OF THE MANHOLE COVER OF THE NEXT UPSTREAM MANHOLE IN THE PUBLIC SEWER, THE FIXTURES SHALL BE PROTECTED BY A BACKWATER VALVE INSTALLED IN THE BUILDING DRAIN, BRANCH OF THE BUILDING DRAIN OR HORIZONTAL BRANCH SERONG SUCH FIXTURES. PLUMBING FIXTURES HAVING FLOOD LEVEL RIMS ABOVE THE ELEVATION OF THE MANHOLE COVER OF THE NEXT UPSTREAM MANHOLE IN THE PUBLIC SEWER SHALL NOT DISCHARGE THROUGH A BACKWATER VALVE 2. DUE TO REQUIRED DISTANCES FROM LOT LINES AND STRUCTURES AS REQUIRED BY THE NFPA, UNDERGROUND PROPANE TANKS MAY BE PROHIBITED. THE BUILDER/DEVELOPER SHALL PLAN ACCORDINGLY. 211) TRIP GENERATION CALCULATIONS SCALE: 1 "=100' TRIP GENERATION BASED ON ITE TRIP GENERATION MANUAL (10TH EDITION) 15 SINGLE FAMILY DETACHED UNITS (CODE 210) TOTAL ADT: 142 VPD (71 ENTER/ 71 EXIT) TOTAL AM PEAK: 12 VPH (3 ENTER/ 9 EXIT) TOTAL PM PEAK: 15 VPH (10 ENTER/ 5 EXIT) SUBJECT SITE dle Manor VICINITY MAP SCALE: 1" = 2000' ROADS LEGEND O EXIS77NG CULVERT O CULVERT 0 DROP INLET & STRUCTURE NO. CURB a CURB & GUTTER PROPOSED PAVEMENT EC-3A DITCH DEPTH OF EC-3A DITCH EC-2 DITCH DEPTH OF EC-2 DITCH Blue 250 Greenway „•�,,, EARTH DITCH DRIVEWAY CULVERT BENCH MARK CLEARING LIMITS T zoa EXIS77NG CONTOUR 20o PROPOSED CONTOUR 24055 VDOT STANDARD STOP SIGN PROPOSED SPOT ELEVA77ON VSMP PLAN SHEET LIST Sheet Number Sheet Title 1 COVER SHEET 2 EXISTING CONDITIONS & DEMOLITION PLAN 3 EROSION & SEDIMENT CONTROL NARRATIVE 4 EROSION & SEDIMENT CONTROL DETAILS 5 EROSION & SEDIMENT CONTROL PLAN - PHASE 1 6 EROSION & SEDIMENT CONTROL PLAN - PHASE II 7 EROSION & SEDIMENT CONTROL PLAN - PHASE III 8 EROSION & SEDIMENT CONTROL DETAILS AND CALCULATIONS 9 PRE -REDEVELOPMENT STORMWATER MANAGEMENT PLAN 10 POST -REDEVELOPMENT STORMWATER MANAGEMENT PLAN 11 STORMWATER MANAGEMENT PLAN DETAILS 12 OVERALL GRADING PLAN 13 DRAINAGE CALCULATIONS SCOTT LR. C-MLINS-Z Lic. 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SCALE 1 "=80' SHEET NO. i 2 1992 EROSION &a SEDIMENT CONTROL MEASURES: STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. STRUCTURAL PRACTICES USED IN THIS SECTION CONSIST OF THE FOLLOWING. 3.01 SAFETY FENCE., A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY VIRTUE OF POTENTIAL ACCESS BY THE PUBLIC. 3.02 CONSTRUCTION ENTRANCE: A STABILIZED PAVED CONSTRUC7ON ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION SITE. TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS 3.05 SILT FENCE: A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED, TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERA77ONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE, AND TO DECREASE THE VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). 3.07 STORM DRAIN INLET PROTECTION: A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET. TO PREVENT SEDIMENT FROM ENTERING STORM DRAINAGE SYSTEMS PRIOR TO PERMANENT STABILIZAT70N OF THE DISTURBED AREA. INLET PROTECTION APPLIES WHERE STORM DRAIN INLETS ARE TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZA7ON OF THE CORRESPONDING DISTURBED DRAINAGE AREA. 3.08 CULVERT INLET PROTECTION: A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM CULVERT. TO PREVENT SEDIMENT FROM ENTERING STORM CULVERTS PRIOR TO PERMANENT STABILIZA7ON OF THE DISTURBED AREA. INLET PROTECTION APPLIES WHERE STORM CULVERTS ARE EXIS77NG OR TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZA7ON OF THE CORRESPONDING DRAINAGE AREA. 3.09 TEMPORARY DIVERSION DIKE., A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA. TO DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPROTECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET. TO DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE WHEREVER STORMWATER RUNOFF MUST BE TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON S17F DURING CONSTRUCTION. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 MONTHS OR LESS, WHICH CAN BE PROLONGED WITH PROPER MAINTENANCE. 3.12 DIVERSION. A CHANNEL CONSTRUCTED ACROSS A SLOPE WITH A SUPPOR77NG EARTHEN RIDGE ON THE LOWER SIDE. TO REDUCE SLOPE LENGTH AND TO INTERCEPT AND DIVERT STORMWATER RUNOFF TO STABILIZED OUTLETS AT NON -EROSIVE VELOCITIES. APPLIES WHERE RUNOFF FROM AREAS OF HIGHER ELEVA77ON MAY DAMAGE PROPERTY, CAUSE EROSION, OR INTERFERE WITH THE ESTABLISHMENT OF VEGETA7ON ON LOWER AREAS, WHERE SURFACE AND/OR SHALLOW SUBSURFACE FLOW IS DAMAGING SLOPING UPLAND, AND WHERE THE SLOPE LENG774 NEEDS TO BE REDUCED TO MINIMIZE SOIL LOSS. 3.13 TEMPORARY SEDIMENT TRAP. A TEMPORARY PONDING AREA FORMED BY CONSTRUC77NG AN EARTHEN EMBANKMENT WITH A STONE OUTLET. TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS LONG ENOUGH TO ALLOW 774E MAJORITY OF THE SEDIMENT TO SETTLE OUT. USE BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBU77NG DRAINAGE AREA /S LESS THAN 3 ACRES, WHERE 774E SEDIMENT TRAP WILL BE USED NO LONGER 774AN 18 MONTHS, AND IT MAY BE CONSTRUCTED EITHER INDEPENDENTLY OR IN CONJUNCTION WITH A TEMPORARY DIVERSION DIKE. 3.14 TEMPORARY SEDIMENT BASIN: A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE STRUCTURE FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. TO DETAIL SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS IN "WET" AND "DRY" STORAGE LONG ENOUGH FOR THE MAJORITY OF 774E SEDIMENT TO SETTLE OUT. APPLIES BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBURNG DRAINAGE AREA IS EQUAL TO OR GREATER THAN 774REE ACRES. THERE MUST BE SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY FOR THE CONSTRUCTION OF A TEMPORARY IMPOUNDMENT. 3.18 OUTLET PRO TEC770N. STRUCTURALLY LINED APRONS OR 07HER ACCEPTABLE ENERGY DISSIPATING DEVICES PLACED AT THE OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS. TO PREVENT SCOUR AT STORMWATER OUTLETS, TO PR07ECT 774E OUTLET STRUCTURE, AND TO MINIMIZE THE P07EN77AL FOR DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED STORMWATER FLOWS. APPLICABLE TO THE OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL SECTIONS. 3.19 RIPRAP: A PERMANENT EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WITH FILTER FABRIC OR GRANULAR UNDERLINING. TO PROTECT THE SOIL FROM THE EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW 774E VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING THE POTEN7AL FOR INFILTRATION, AND TO STABILIZE SLOPES WITH SEEPAGE PROBLEMS, AND/OR NON -COHESIVE SOILS. USE WHEREVER SOIL AND WATER INTERFACE AND THE SOIL CONDIT70NS, WATER TURBULENCE AND VELOCITY, EXPECTED VEGETA7VE COVER, ETC., ARE SUCH THAT THE SOIL MAY ERODE UNDER THE DESIGN FLOW CONDITIONS 3.20 ROCK CHECK DAMS SMALL TEMPORARY STONE DAMS CONSTRUCTED ACROSS A SWALE OR DRAINAGE DITCH. TO REDUCE THE VELOCITY OF CONCENTRATED STORMWATER FLOWS, THEREBY REDUCING EROSION OF THE SWALE OR DITCH. THIS PRACTICE ALSO TRAPS SEDIMENT GENERATED FROM ADJACENT AREAS OR THE DITCH ITSELF, MAINLY BY PONDING OF THE STORMWA7ER RUNOFF. THIS PRACTICE, U77LIZING A COMBINA77ON OF STONE SIZES, IS LIMI7ED TO USE IN SMALL OPEN CHANNELS WHICH DRAIN 10 ACRES OR LESS. 3.31 TEMPORARY SEEDING. - THE ESTABLISHMENT OF A TEMPORARY VEGETA7VE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTAT70N BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PROTEC77ON TO BARE SOILS EXPOSED DURING CONSTRUCTION UN77L PERMANENT VEGETA7ON OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 3.32 PERMANENT STABILIZATION. - THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLAN77NG SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO PERMANENTLY STABILIZE DIS77JRBED AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO SI7E CONDITIONS, AND ALLOWS SELEC77ON OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLET70N OF CONSTRUC7ON ACTIlW77ES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. 3.35 MULCHING APPLICA7ON OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE. TO PREVENT EROSION BY PR07ECTING THE SOIL SURFACE FROM RAINDROP IMPACT AND REDUCING THE VELOCITY OF OVERLAND FLOW. TO FOSTER THE GROWTH OF VEGETA7ON BY INCREASING AVAILABLE MOISTURE AND PROVIDING INSULA77ON AGAINST EXTREME HEAT AND COLD. AREAS WHICH HAVE BEEN PERMANENTLY SEEDED SHOULD BE MULCHED IMMEDIATELY FOLLOWING SEEDING. AREAS WHICH CANNOT BE SEEDED BECAUSE OF THE SEASON SHOULD BE MULCHED USING ORGANIC MULCH. MULCH MAY BE USED TOGETHER WITH PLANTINGS OF TREES SHRUBS OR CERTAIN GROUND COVERS WHICH DO NOT PROVIDE ADEQUATE SOIL STABILIZAT70N BY THEMSELVES, CAN BE USED IN CON✓UNCT70N WITH TEMPORARY SEEDING. 3.37 TREES SHRUBS VINES & GROUND COVERS: STABILIZING DISTURBED AREAS BY ESTABLISHING VEGETATIVE COVER WITH TREES, SHRUBS, VINES, OR GROUND COVERS. TO AID IN STABILIZING SOIL /N AREAS WHERE VEGETA7ON OVER THAN TURF /S PREFERRED, TO PROVIDE FOOD AND SHELTER FOR WILDLIFE WHERE WILDLIFE HABITAT /S DESIRABLE. APPLIES IN AREAS WHERE TURF ESTABLISHMENT IS DIFFICULT, ON STEEP OR ROCKY SLOPES WHERE MOWING IS NOT FEASIBLE, WHERE ORNAMENTALS ARE DESIRABLE FOR LANDSCAPING PURPOSES AND WHERE WOODY PLANTS ARE DESIRABLE FOR SOIL CONSERVATION OR TO ESTABLISH WILDLIFE HABITAT. 3.36 BLANKET MATTING: INSTALLA77ON OF A PR07EC77VE COVERING OR A SOIL STABILIZA7ON MAT ON A PREPARED PLAN77NG AREA OF A STEEP SLOPE OR CHANNEL TO AID IN THE CONTROLLING EROSION ON CRI77CAL AREAS. 3.38 TREE PRESERVATION AND PROTECTION. PR07EC77ON OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION ACTIVITY. TO ENSURE THE SURVIVAL OF DESIRABLE TREES WHERE THEY WILL BE EFFEC77VE FOR EROSION AND SEDIMENT CONTROL, WATERSHED PROTEC77ON, LANDSCAPE BEAUTIFICATION DUST AND POLLUT70N CONTROL NOISE REDUCTION SHADE AND OTHER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES. APPLIES IN TREE-INHAB17ED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES. 3.39 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOL177ON AND CONSTRUCTION ACTIVITIES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE VESCH. 3.32 TABLE 3.32-D SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA Total Lbs. Per Acre Minimum Care Lawn Commercial or Residential 175-200 lbs. - Kentucky 31 or Turf -Type a Tall Fescue kY YP 95-100 0 % - Improved Perennial Ryegrass 0-5% - Kentucky Bluegrass 0-5% High -Maintenance Lawn 200-250lbs. - Kentucky 31 or Turf -Type Tall Fescue 1000/0 General Slope (3:1 or less) - Kentucky 31 Fescue 128 lbs. - Red Top Grass 216s. - Seasonal Nurse Crop • 20 III 150 lbs. Low -Maintenance Slol& (Steeper than 3:1) - Kentucky 31 Fescue 108 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop* 201bs. - Crownvetch •• 201bs. 150 lbs. ' Use seasonal nurse crop in accordance with seeding dates as stated below: April ... .. . Annual Rye February16thlhrou A .............. P Y through May 1st through August 15th ..................... Foxtail Millet August 16th through October ...................... Annual Rye November through February 15th................... Winter Rye 'a Substitute Sericea lespedeza for Crownvetch east of Farmville, Va. (May through September use hulled Sericea, all other periods, use unhulled Sericea). If Flatpea is used in lieu of Crownvetch, increase rate to 30 lbs./acre. All legume seed must be properly inoculated. Weeping Lovegrass may be added to any slope or low -maintenance mix during warmer seeding periods; add 10-20 lbs./acre in mixes. TABLE 331•A LIMING REQUIREMENTS FOR TEMPORARY SITES Recommended Application pH Test of Agricultural Limestone below 42 3 tons per acre 42 to 52 2 tons per acre 52 to 6 1 ton per acre TABLE 3JI-8 ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS -QUICK REFERENCE FOR ALL REGIONS' Rate Pllnlmr Dates Sce6 (Ibs/aae) Sept L - Feb. 15 50/50 Mu Af M.A R"'. (Uh...ulti.Bo..) a 50-BID Cereal (Winter) Rye (Sera], ce,eAe, Feb.16 - Apr. 30 An.a Ryegrna 60 - im (Loll....bi-Bn..) May 1 - Aug 31 German Millet 50 GENERAL SLOPE (3:1 OR LESS) TOTAL LBS PER ACRE KENTUCKY 31 FESCUE 128 LBS RED TOP GRASS 2 LBS SEASONAL NURSE CROP 20 LBS 150 LBS SEASONAL NURSE CROP FEBRUARY 16 THROUGH APRIL ANNUAL RYE MAY 1 THROUGH AUGUST 15 FOXTAIL MILLET AUGUST 16 THROUGH OCTOBER ANNUAL RYE NOVEMBER THROUGH FEBRUARY 15 WINTER RYE NOTES, 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32. 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION OF SEED APPLICATION, IN ACCORDANCE W1 VESCH STD 3.35. PERMANENT SEEDING SCHEDULE PS NO SCALE (STD. & SPEC. 3.32 OF VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK, 3RD ED.) EROSION CONTROL NOTES ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTCES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. ES-J.-ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. ES-4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. ES-5.-PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLAT70N OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTAT70N AS DETERMINED BY THE PLAN APPROVING AUTHORITY. ES-7.-ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACT7077ES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. ES-8- DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED WATER FILTERING DEVICE. ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. General construction notes for Erosion and Sediment Control plans 1. The plan approving authority must be notified one week prior to the pre -construction conference, one week prior to the commencement of land disturbing activity, and one week prior to the final inspection. 2. All erosion and sediment control measures will be constructed and maintained according to minimum standards and specifications of the Virginia Erosion and Sediment Control Handbook and Virginia Regulations VR 625-02-00 Erosion and Sediment Control Regulations. 3. All erosion and sediment control measures are to be placed prior to or as the first step in clearing. 4. A copy of the approved erosion and sediment control plan shall be maintained on the site at all times. 5. Prior to commencing land disturbing activities in areas other than indicated on these plans (including, but not limited to, off -site borrow or waste areas), the contractor shall submit a supplementary erosion control plan to the owner for review and approval by the plan approving authority. 6. The contractor is responsible for installation of any additional erosion control measures necessary to prevent erosion and sedimentation as determined by the plan approving authority. 7. All disturbed areas are to drain to approved sediment control measures at all times during land disturbing activities and during site development until final stabilization is achieved. 8. During dewatering operations, water will be pumped into an approved filtering device. 9. The contractor shall inspect all erosion control measures periodically and after each runoff - producing rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of the erosion control devices shall be made immediately. 10. All fill material to be taken from an approved, designated borrow area 11. All waste materials shall be taken to an approved waste area. Earth fill shall be inert materials only,free of roots stumps, wood rubbish and other debris. 12. Borrow or waste areas are to be reclaimed within 7 days of completion per Zoning Y P P g Ordinance section 5.1.28. 13. All inert materials shall be transported in compliance with section 13-301 of the Code of Albemarle. 14. Borrow, fill or waste activity involving industrial -type power equipment shall be limited to the hours of 7:00am to 9:00pm. 15. Borrow, fill or waste activity shall be conducted in a safe manner than maintains lateral support, or order to minimize any hazard to persons, physical damage to adjacent land and improvements, and damage to any public street because o slides, sinking, or collapse. 16. The developer shall reserve the right to install, maintain, remove or convert to permanent stormwater management facilities where applicable all erosion control measures required g aPP 9 by this plan regardless of the sale of any lot, unit, building or other portion of the property. 17. Temporary stabilization shall be temporary seeding and mulching. Seeding is to be at 75 lbs/acre, and in the months of September to February to consist a 50150 mix of Annual Ryegrass and Cereal Winter Rye, or in March and April to consist of Annual Rye, or May through August to consist of German Millet. Straw mulch is to be applied at 80lbs/100sf. Alternatives are subject to approved by the County erosion control inspector. 18. Permanent stabilization shall be lime and fertilizer, permanent seeding, and mulch. Pe g, Agricultural grade limestone shall be applied at 90lbs/1000sf, incorporated into the top 4-6 inches of soil. Fertilizer shall be applied at 10001bs/acre and consist of a 10-20-10 nutrient mix. Permanent seeding shall be applied at 180lbs/acre and consist of 95% Kentucky 31 or Tall Fescue and 0-5% Perennial Ryegrass or Kentucky Bluegrass. Straw mulch is to be applied at 80lbs/100sf. Alternatives are subject to approved by the County erosion control inspector. 19. Maintenance: All measures are to be inspected weekly and after each rainfall. Any damage or clogging to structural measures is to be repair immediately. Silt traps are to be cleaned when 50%G of the wet storage volume is filled with sediment. All seeded areas are to be reseeded when necessaryto achieve a good stand f ass. Silt fence and diversion dykes 0 g � Y which are collecting sediment to half their height must be cleaned and repaired immediately. 20. All temporary erosion and sediment control measures are to be removed within 30 days of final site stabilization, when measures are no longer needed, subject to approval by the County erosion control inspector. 21. This plan shall be void if the owner does not obtain a permit within 1 year of the date of approval. (Water Protection Ordinance section 17-204G.) 22. Permanent vegetation shall be installed on all denuded areas within nine (9) months after the date the land disturbing activity commenced. (Water Protection Ordinance section 17- 207B) TEMPORARY SEEDING: ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIATELY FOLLOWING GRADING. SELECT70N OF THE SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR AND WILL BE APPLIED TO DISTURBED ARES THAT WILL NOT BE BROUGHT TO FINAL GRADE WITHIN 30 DAYS PLANTS SHOULD BE SELECTED APPROPRIATE TO THE SEASON AND SITE COND177ONS FROM TABLES 331E AND 331C. NOTE THAT TABLE 331B PRESENTS PLANTS WHICH CAN BE USED WITHOUT EXTENSIVE EVALUATION OF SITE CONDITIONS, • TABLE 331C PRESENTS MORE IN-DEPTH INFORMATION ON THE PLANT MATERIALS. TO CONTROL EROSION ON BARE SOIL SURFACES, PLANTS MUST BE ABLE TO GERMINATE AND GROW. SEEDBED PREPARAT70N IS ESSENTIAL. AN EVALUATION SHOULD BE CONDUCTED TO DETERMINE IF LIME IS NECESSARY FOR TEMPORARY SEEDING. TABLE 331A MAY BE USED TO DETERMINE THE ACTUAL NEED ALONG WITH SUGGESTED APPLICATION RA TES: FERTILIZER SHALL BE APPLIED AS 600 LBS/ACRE OF 10-20-10 (14 LBS/1,000 SQ. FT.) OR EQUIVALENT NUTRIENTS. LIME AND FERTILIZER SHALL BE INCORPORATED INTO THE TOP 2 TO 4 INCHES OF THE SOIL IF POSSIBLE. IF THE AREA HAS BEEN RECENTLY LOOSENED OR DISTURBED, NO FURTHER ROUGHENING IS REQUIRED. WHEN THE AREA IS COMPACTED, CRUSTED, OR HARDENED, THE SOIL SHALL BE LOOSENED BY DISCING, RAKING, HARROWING, OR OTHER ACCEPTABLE MEANS. TRACKING NTH BULLDOZER CLEATS IS MOST EFFEC77VE ON SANDY SOILS. THIS PRAC77CE OFTEN CAUSES UNDUE COMPACT70N OF THE SOIL SURFACE ESPECIALLY IN CLAYEY SOILS, AND DOES NOT AID PLANT GROWTH AS EFFEC77VELY AS OTHER METHODS OF SURFACE ROUGHENING. SEED SHALL BE EVENLY APPLIED WITH A BROADCAST SEEDER, DRILL, CULT7PACKER SEEDER OR HYDROSEEDER. SMALL GRAINS SHALL BE PLANTED NO MORE THAN 1i INCHES DEEP. SMALL SEEDS, SUCH AS KENTUCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN lq INCH DEEP. 07HER GRASSES AND LEGUMES SHOULD BE PLANTED FROM # INCH TO J DEEP. SEEDINGS MADE IN FALL FOR WINTER COVER AND DURING HOT AND DRY SUMMER MONTHS SHALL BE MULCHED ACCORDING TO MULCHING, STD. & SPEC. 335, EXCEPT THAT HYDROMULCHES (FIBER MULCH) WILL NOT BE CONSIDERED ADEQUATE. STRAW MULCH SHOULD BE USED DURING THESE PERIODS. AREAS WHICH FAIL TO ESTABLISH VEGETATIVE COVER ADEQUATE TO PREVENT RILL EROSION WILL BE RE -SEEDED AS SOON AS SUCH AREAS ARE IDENTIFIED. DESCRIPTION OF EROSION & SEDIMENT EROSION CONTROL NOTES &a NARRATIVE CONTROL MEASURES: THE POURPOSE OF THIS LAND DISTURBING ACTIVITY IS TO GRADE THE STOCKTON CREEK SITE FOR A EROSION AND SEDIMENT CONTROL MEASURES: RESIDENTIAL DEVELOPMENT. THE TOTAL AREA TO BE DISTURBED WITH THIS PLAN IS 76.93 ACRES. IT IS ANTICIPATED TO USE CONSTRUCTION ENTRANCES, DIVERSION DIKES, EXISTING SEDIMENT EXISTING SITE CONDITIONS: BASINS, AND SILT FENCES WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY MOST OF THIS SITE IS FARMLAND WITH A FEW AREAS OF TREES SEPARA77NG VARIOUS AREAS OF SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE ACTIVITIES CLEARED PLOTS OF FARMLAND. OVERALL THE DISTURBED AREA SLOPES SOUTH TOWARDS ROUTE 151. TEMPORARY STOCKPILE AREAS WILL BE MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED THE SITE IS LOCATED TO THE NORTH OF CRITZERS SHOP ROAD (ROUTE 151) AND WEST OF ROUTE FROM AREAS TO BE GRADED AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL 250. THE MAJORITY OF THE SITE DRAINS TOWARDS THE EXISTING CULVERT THAT CROSSES ROUTE 151. BE ON SITE AND SHALL BE STABILIZED WITH A TEMPORARY VEGETATIVE COVER. PERMANENT ADJACENT AREAS: SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE EXCAVATED AND THIS SITE IS BORDERED TO THE EAST BY ROUTE 250 AND TO THE SOUTH BY CRITZERS SHOP ROAD. WHERE CONSTRUCTION ACTIVITIES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE GOODLOE LANE IS ALONG THE WEST AND NORTHWEST BORDER OF THE SITE AND OLD TURNPIKE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE. ROAD EXISTS TO THE NORTH OF THE SITE SELEC77ON OF SEED MIXTURE WILL DEPEND ON 774E TIME OF YEAR APPLIED. OFFSITE LAND DISTURBANCE: TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT IMPROVEMENTS TO BE MADE WITHIN THE VDOT RIGHT-OF-WAY ALONG GOODLOE LANE. DORMANT FOR MORE THAN SEVEN DAYS. THESE AREAS SHALL BE SEEDED WITH FAST CRITICAL AREAS. GERMINA7NG VEGETAT70N IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECT70N OF SILT FENCE SHALL BE MAINTAINED ALONG THE LIMITS OF DISTURBANCE AS SHOWN ON THE PLAN TO SEED MIXTURE WILL DEPEND ON THE 77ME OF YEAR APPLIED. THE EAST NORTH, AND SOUTH OF THE SITE TO PROTECT THE ADJACENT PROPERTIES. CONTRACTOR CONSTRUCTION ENTRANCE.- SHALL ENSURE THAT ALL SEDIMENT MAINTENANCE CONTROLS ARE ALONG GOODLOE ROAD TO ENSURE THAT NO SEDIMENT LEAVES THE SITE AND DRAINS ONTO THE ROAD. A STABILIZED PAVED CONSTRUCTION ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF SOILS VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION SITE TO REDUCE THE AMOUNT OF MUD SO/LS MAP IS INCORPORATED INTO EROSION CONTROL PLAN PHASE l WITH SOILS DATA INCLUDED TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. WITH THIS NARRATIVE. CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE SEQUENCE OF CONSTRUCTION: AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS. PHASE I: SILT FENCE. 1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED. A TEMPORARY SEDIMENT BARRIER CONSISTNG OF A SYNTHE7IC FILTER FABRIC STRETCHED 2. PRIOR TO DISTURBANCES, THE LIMITS OF DISTURBANCE SHALL BE FLAGGED AND THE TREE ACROSS AND ATTACHED r0 SUPPORTING POSTS AND ENTRENCHED. r0 INTERCEPT AND DETAIN PROTECTION FENCING SHALL BE INSTALLED. SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS IN J. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE TO DECREASE THE VELOCITY OF SHEET WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT. 4• THE PROPOSED CONSTRUCTION ENTRANCE WITH WASH AREAS SHALL BE INSTALLED AS SHOWN ON FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS THE SILT FENCE BARRIERS SHALL BE THE PLANS. THE CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE FROM SHEET FLOW AS INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH TRANSPORT OF SEDIMENT BY (VEHICULAR) TRACKING ONTO THE PAVED SURFACE. WHERE RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED HANDBOOK (VESCH). THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY PERMANENT STABILIZATION. SHOVELING OR SWEEPING AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET THE ESTABLISHMENT OF PERENNIAL VEGETA7VE COVER ON DISTURBED AREAS BY PLAN77NG WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO 5. INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE PHASE I EROSION CONTROL PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO SHEET THIS INCLUDES (4) SEDIMENT TRAPS (1), SEDIMENT BASIN, WIRE SILT FENCE, AND SITE CONDITIONS, AND ALLOWS SELECT70N OF THE MOST APPROPRIATE PLANT MATERIALS. TO DIVERSION DIKES. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLE77ON OF LAND DISTURBANCE TAKES PLACE. A TEMPORARY CULVERT CROSSING MAY BE UTILIZED TO CROSS CONSTRUCTION ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. THE EXISTING NON PERENNIAL STREAM TO INSTALL PERIMETER CONTROLS. TEMPORARY SEEDING: 6. ONCE ALL THE PHASE I EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE THE ESTABLISHMENT OF A TEMPORARY VEGETA7VE COVER ON DISTURBED AREAS BY SEEDING EROSION CONTROL PHASE I PLAN AND THE INSPECTOR HAS APPROVED THE EROSION CONTROL WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND MEASURES, THE CONTRACTOR CAN BEGIN THE MINIMUM GRADING OPERATIONS. PRIORITY SHALL BE SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE PLACED ON INSTALLING THE PERMANENT 36" CULVERT AND STABILIZING THE BANKS OF THIS FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO CULVERT UP TO THE TEMPORARY CONSTRUCTION ROAD. STABILIZATION MEASURES SHALL BE DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS EXPOSED APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES, AND DIVERSIONS IMMEDIATELY AFTER DURING CONSTRUC7ON UN77L PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES INSTALLATION. CAN BE ESTABLISHED. 7. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN DUST CONTROL: 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 REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. CONSTRUCTION ACTIVITIES. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND MORE THAN ONE YEAR. REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. PHASE ll: DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF 8. PHASE H CONSTRUCTION SHALL INCLUDE CONSTRUCTING STOCKTON CREEK LANE AND STOCKTON DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE VESCH. CREEK COURT. THIS PHASE SHALL ALSO INCLUDE CONSTRUCTING THE ROADSIDE DITCHES AND TEMPORARY DIVERSION DIKE: UNDERGROUND STORM SEWER SYSTEM TO TEMPORARILY OUTLET TO SEDIMENT BASIN 1 (BUT WILL A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED ULTIMATELY OUTLET TO THE PROPOSED DETENTION BASIN AS SHOWN IN THE SWIM PLAN). AREA WHICH DIVERTS OFF -SITE RUNOFF AWAY FROM UNPROTECTED SLOPES AND r0 A 9. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN STABILIZED OUTLET OR TO DIVERT SEDIMENT -LADEN RUNOFF TO A SEDIMENT TRAPPING SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY POR77ON OF THE SITE. TEMPORARY SOIL STRUCTURE. MAX/MUM EFFECTIVE LIVE /S 18 MONTHS. STAB/L/ZA TION SHALL BE APPLIED WITHIN SEVEN DA YS TO DENUDED AREAS THA T MA Y NOT BE A T ROCK CHECK DAMS: FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. SMALL, TEMPORARY STONE DAMS CONSTRUCTED ACROSS A DRAINAGE DITCH TO REDUCE THE PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. VELOCITY OF CONCENTRATED FLOWS, REDUCING EROSION OF THE SWALE OR DITCH. LIMITED r0 USE IN SMALL OPEN CHANNELS WHICH DRAIN 10 ACRES OR LESS; SHOULD NOT BE USED IN PHASE Ill: LIVE STREAMS. lO.ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL THE CONTRACTOR STORM DRAIN INLET PROTECTION: CAN REMOVE THE SEDIMENT TRAPS. NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AREAS THE INSTALLAT70N OF VARIOUS KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS ARE STABILIZED AND THE INSPECTOR GIVES PERMISSION. OR CURB INLET STRUCTURES PRIOR TO PERMANENT STABILlZA170N OF THE DISTURBED AREA; 11. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND LlM11ED TO DRAINAGE AREAS NOT EXCEEDING ONE ACRE, AND NOT INTENDED TO CONTROL SEDIMENT CONTROL HANDBOOK REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM LARGE, CONCENTRATED STORMWATER FLOWS. ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. TEMPORARY SEDIMENT TRAP: 12.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 A SMALL PONDING AREA, FORMED BY CONSTRUC77NG AN EARTHEN EMBANKMENT WITH A STONE NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED OUTLET ACROSS A DRAINAGE SWALE, TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY DIS77JRBED AREAS FOR ENOUGH 77ME TO ALLOW MOST TO THE SUSPENDED SOLIDS TO SETTLE MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND OUT MAXIMUM EFFEC77VE LIFE IS 18 MONTHS. TEMPORARY SEDIMENT BASIN: SEDIMENTA770N. A TEMPORARY BARRIER OR DAM WITH CONTROLLED STORMWATER RELEASE STRUCTURES WHICH IS PHASE 111A: FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. IT 1O.ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR IS USED TO DETAIN SEDIMENT -LADEN RUNOFF FROM DRAINAGE AREAS 3 ACRES OR GREATER CAN REMOVE THE SEDIMENT BASIN AND CONVERT TO THE PROPOSED DETENTION BASIN. NO ITEM FOR ENOUGH TIME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT. IT CAN BE SHALL BE REMOVED UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES CONSTRUCTED ONLY WHERE 77-IERE IS SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY PERMISSION. 11. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND MAXIMUM EFFEC77VE LIFE is 18 MONTHS UNLESS DESIGNED AS A PERMANENT POND BY A SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM QUALIFIED PROFESSIONAL. ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. OUTLET PROTECTION: 12.ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/OR STILLING BASINS BELOW STORM DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER DRAIN OUTLETS TO REDUCE EROSION AND UNDER-CUTTNG FROM SCOURING AT OUTLETS AND r0 NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS RECEIVING CHANNELS BELOW THESE SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY OUTLETS. MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND CULVERT INLET PROTECTION: SEDIMENTATION. A SEDIMENT FILTER LOCATED AT THE INLET TO STORM SEWER CULVERTS WHICH PREVENTS SEDIMENT FROM ENTERING, ACCUMULATING IN AND BEING TRANSFERRED BY THE CULVERT. IT SOIL DESCRIPTION ALSO PROVIDES EROSION CONTROL AT CULVERTS DURING THE PHASE OF A PROJECT WHERE 4E - ASHE LOAM-257 TO 457 SLOPES. THESE SHALLOW, SOMEWHAT EXCESSIVELY DRAINED SOILS ELEVA77ONS AND DRAINAGE PATTERNS ARE CHANGING, CAUSING ORIGINAL CONTROL MEASURES ARE FOUND ON MOUNTAIN SLOPES. MODERATE RUNOFF, WITH VERY LOW TO HIGH PERMEABILITY. TO BE INEFFECTIVE. HYDROLOGIC SOIL GROUP B SAFETY FENCE: 7B - BRADDOCK LOAM-27 TO 79 SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON A PR07EC77VE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL FANS. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. HYDROLOGIC SOIL MEASURE. GROUP B. PERMANENT STABILIZATION:14D - - CHES7ER LOAM 15% TO 25% SLOPES THESE DEEP WELL DRAINED SOILS ARE FOUND ON S. HIGH RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY.NHYROLOGIC SOIL PERMANENT SEEDING WILL BE APPLIED TO ALL DISTURBED AREAS AS PER THE PERMANENT GROUP B. GROUUPP. B STABILIZATION OF THIS EROSION & SEDIMENT CONTROL NARRATIVE. 14E - CHESTER LOAM-257 TO 45% SLOPES. 774ESE DEEP, WELL DRAINED SOILS ARE FOUND ON AFTER CONSTRUCT70N IS COMPLETED, ALL DISTURBED AREAS OF THE SITE WILL BE LIMED, HILLSLOPES. HIGH RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. HYDROLOGIC FERTILIZED, AND SEEDED AS PER CURRENT VDOT STANDARDS. THIS SHALL CONSIST OF SOIL GROUP B. THE FOLLOWING. - TOP SOIL - 2" DEPTH 36B - HAYESIWLLE LOAM-2X TO 79 SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON LIME - 2 TONS/ACRE HILLSLOPES. MODERATE RUNOFF, KITH MODERATELY HIGH TO HIGH PERMEABILITY. HYDROLOGIC SOIL GROUP B FERTILIZER - 600 LBS/ACRE OF 15-30-15 SEED - ERNST 5311 CONSERVATION SEED MIX - ERNMX-114 (45 LBS/ACRE PENNLAWN 36C - HAYESIWLLE LOAM-77 TO 15X SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON CREEPING RED FESCUE, 37.5 LBS/ACRE ARGILS KENTUCKY BLUEGRASS, 37.5 LBS/ACRE HILLSLOPES. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. HYDROLOGIC PARK KENTUCKY BLUEGRASS, 15 LBS/ACRE ANNUAL RYEGRASS & 15 LBS/ACRE PLEASURE SOIL GROUP B. PERENNIAL AFTER THESE AREAS ARE STABILIZED THEY WILL BE MOWED AND MAINTAINED 818 - THURMONT LOAM-27 TO 79 SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON ON A REGULAR BASIS INTERFLUVES. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. HYDROLOGIC SOIL GROUP B. MAINTENANCE • IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY 81C - THURMONT LOAM-7X TO 159 SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON AND AFTER EACH SIGNIFICANT RAINFALL. SPECIFIC ATTENTION WILL BE GIVEN TO THE INTERFLUVES. MODERATE RUNOFF, W1774 MODERATELY HIGH TO HIGH PERMEABILITY. FOLLOWING ITEMS HYDROLOGIC SOIL GROUP B. A. SEDIMENT BASINS ANDIOR TRAPS WILL BE CLEANED AND MAINTAINED IN 89B - UNISON SILT LOAM-2Z TO 7.Z SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. FANS. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. HYDROLOGIC SOIL B. ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT GROUP B. WILL PREVENT PROPER DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT THE GRAVEL WILL BE REMOVED AND CLEANED, OR IT WILL REPLACED. 89C - UNISON SILT LOAM-79 TO 159 SLOPES THESE DEEP, WELL DRAINED SOILS ARE FOUND ON C. ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR FANS. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. HYROLOGIC SOIL DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE GROUP B. REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHED HALF WAY TO THE TOP of THE BARB/ER. STORMWATER RUN-OFF CONSIDERATIONS. D. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. STORMWATER MANAGEMENT. THE STORMWATER RUNOFF FROM THIS PROJECT DRAINS TEMPORARILY TO THE SEDIMENT BASIN & TRAPS THE SEDIMENT BASIN AND THE SEDIMENT TRAPS WILL BE REMOVED AFTER THE DEVELOPMENT OF THE STOCKTON CREEK DEVELOPMENT PROJECT. SCOTT /R. CDLLIM Lic. No. 035791 1/4/23 z z z z /A w U Lu Lu J w w w ZJ J J 0 W a a a Oa m w w w 1.4 N 0 Q Q Q 0 0 0 o z � F- F- Z 0 z z z IM4 0 , 0 0 0 U) U) rn LU Mmm co a 0 o x F N M 7 z N N N M w C C C C 0 0 0 0 L9 O') 2 7- ti co Cr) CJi N 4 cr) U ,'I- z N Q o J rn N N a- W Q 2 > (n Ll Z J I J _ > z LU II II 0 F_ H1 O Z10� II = coW I i v ' ' LU LU w Ul U) �_ U ZLUz of LLJ IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIII U) J LU o E J Q `� 0 O CD N U r) w LU 1. - Q z J 0 U z LU 0 LU V) 016 0 Fi (f) L.L LU 222207 AS NOTED I U C Paved construction entrance for erosion control plans 1992 3.05 1992 3.05 ,,��� TH OF CONSTRUCTION OF A SILT FENCE CONSTRUCTION OF A SILT FENCE 1992 3.11 17 24STRUCTION -7o MIN. (WITH WIRE SUPPORT) (WITHOUT WIRE SUPPORTS 1992 3. A=--ESS 3. SMl 2A ASPHALI TOP STONE -LINED WATERWAYS SCOTT LINS'Z COURSE DUST INC 1. SET POSTS AND EXCAVATE A eXe 2. STAPLE WIRE FENCING TO THE POSTS. 1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH TEMPORARY RIGHT-OF-WAY O )7G 2X PAVEMENT TRENCH UPSLOPE ALONG THE LINE E ALONG THE LINE OF Lie. No. 035791 STAKES of Posrs. STAKES. IIIII�II�� 6'MAX. DI W 'd+ji 1/4/23 - _ 6 MN z'A AGGREGATE BASE % � VDOT //1 e6-9 SSI E���COARSE AGGREGATEONALPROFILJ-� ---- - d ZSCONE 70' MIN. h -' �- ^�l- / - I FLOWCONSI ACCESSUCt104 _ 0ASPHALT PAVEDACCESS -F wASHwtCx _ = "-III - o4" FILTER CLOTH -II� Co EXISPNG 1 / 3. STAPLE FILTER MATERIAL 4. BACKFILL AND COMPACT g. MINIMUM 27i PAVEMENT) FLOW - III Jill TO STAKES AND EXTEND THE EXCAVATED SOIL. 2TG '2' All - 4- IT INTO THE TRENCH. V-SHAPED WATERWAY WITH STONE CENTER DRAIN t NOTE: A GRANULAR FILTER MAY BE SUBSTITUTED FOR FILTER CLOTH. o 3. ATTACH THE FILTER FABRIC TO THE WIRE 4. SACKFILL AND COMPACT THE /v POSIT NE DRAINAGE. FENCE AND EXTEND IT INTO THE TRENCH. EXCAVATED SOIL. " TYPICAL GRAVEL STRUCTURE } "MUST EXTEND FULL WIDTH Lo TO SEDIMENT �• F } .- Of INGRESS AND EGRESS TRAPPING DEYIf _ - �" / Z F F 3 UO O O O OPERATION ELM III! Jill W � z z z N liCN / t� _ T� 2/3- W - /// - COMPACTED SOIL 4 -- /A J U U U 0 -- _ i FLOW / _ ____-__ ______ ___ _____ v' w w w - < � J J SHEET FLOW INSTALLATION IIII _ d _ _ z s lull ' - t 2' MIN - 1 VE W7IuNA' �� IIII IIII _ _ - �� - - IF z 0 w I::AI•PING DEVXJ / _I %f/ (PERSPECTIVE VIEW) �04 -U111 m w w w 0 1� �� II O m co m F FLOW III I 18" Mom' _ U O Q Q Q ' /_ - I _' FILTER CLOTH = IIII KEY IN FILTER wQ Z O O O rILTER CLOTH- -TI� a A A - - CLOTH 6"-9" Z O z z z � .ity.. II - -III SECTION A -A - FLOIrt D \\� - �.,♦ o o 0 0 EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. -- I j >yS', LET N r rn A nwwwwl walla lap of 1 mdl anuf hr w0a0rd with a uwwumn t wLb ball. ock / �j//\ p q. :4 g• MTNTMUM PARABOLIC WATERWAY WITH STONE CENTER DRAIN LU LU an LU DO On m Mill Pahc .Iq'phul¢ a wash IION'e tATlh wll a dtalndo :It I A ih I:•1 .1dicyt.1le FILTER FABRIC \,LET cou.42111 ples. lue x%T 1I w'alel IIIIIa'1 he cinletl aw:IV Ilulll The EcIIIJate 1.. all �� IIIIII= NOTE: A GRANULAR FILTER MAY BE SUBSTITUTED FOR FILTER CLOTH. J M LET N apINOTed>eftinl ilea 10Ie11MVe etialltflt Ali sLNluuad <IIaB be p1r'rllled IIOW POINTS A SHOULD BE HIGHER THAN POINT H. I-_ z W I 0 WIRE entanutstoundiatus.dEchessof t�atocotr'�eI. � � � - -' DRAINAGEWAY INSTALLATION TYPICAL EARTHEN STRUCTURE z N M v U -I - (FRONT ELEVATION) `o PAVED WASH RACK Source: Adapted from Installation of Straw and Fabric Filter Source: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control, Sherwood and Wyant Plate 3.05-2 Source: USDA-SCS Plate 3.17-2 " ` I Barriers for Sediment Control, Sherwood and Wyant Plate 3.05-1 Source: Va. DSWC Plate 3.11-1 a a 1992 3.08 1992 3.18 1992 3.36 1992 3.38 0 SILT FENCE CULVERT INLET PIPE OUTLET CONDITIONS TYPICAL ORIENTATION OF FENCING AND ARMORING PROTECTION A A TREATMENT - > 1992 320 o ENS (SOIL STABILIZATION BLANKET s ROCK CHECK DAM N N N M w N N N N HwLow _____________ SLOPE CD GO CD \ •J 3dO I CUT/FILL QUANTITIES: a N N N O ,E -- ---------- --- --- -�----------------- ____ dO 2 ACRES OR LESS OF DRAINAGE AREA: LET 1" rn ti `l---T-' NE SHALLOW O SLOPES, STRIPS OF D TOE OF FILL � i I --- PIPE OUTLET TO FLAT NETTING PROTECTIVE COVERINGS GRIP UNE I VOLUME OF CUT FOR LIMITS OF DISTURBANCE: CULVERT AREA WITH NO DEFINED ,,I I TMHE SLOPE. PLIED ACROSS g --. 31,SOo CU. YARD ., PLAN VIEW CHANNEL � I I I a, VOLUME OF FILL FOR LIMITS OF DISTURBANCE: � I I FILTER CLOTH 33,000 CU. YARD > - i - SNOW FENCEL9 L BERM I (OPTIONAL) �- NET VOLUME OF FILL FOR LIMITS OF DISTURBANCE: 5 I DOWNSTREAM VIEW i Soo CU. YARD ° WHERE THERE IS IA BERM AT THE TOP N THE SLOPE. ( I / ._ I I 0 8 .- BRING THE MATERIAL OVER THE BERM AND ANCHOR R BEHIND THE BQtM. L• ---- --L== -ME- m a on 00 VDOT QI 6" OF TOPSOIL SHALL BE HAULED OFFSITE TO A > I I z -� COARSE AGGREGATE W � PERMITTED (SWPPP) SITE tiM o A TOE OF FILL SECTION A -A FILTER CLOTH KEY IN IE-9'; RECOMMENDED FOR ENTIRE PERIMETER SLOPE pop FLOW <'.7 3' ` J AS EXPLAINED IN EACH PHASE NARRATIVE AND M 3 BOARD FENCE{ I,tR REITERATED HERE PERMANENT OR TEMPORARY � W SILT FENCE ON SLOPES, APPLY DISTANCE IS 6' MINIMUM IF ROW A TO THE COVERING FLOW EL CORD FENCE SOIL STABILIZATION SHALL BE APPLIED TO N a IS TOWARD EMBANKMENT TO AN DIRECTION RE FLOW ` AND ANCHOR SECURELY. 3 TLow A ado (MIN) ` CORRECT METHODS OF PLASTIC FENCE 2-10 ACRES OF DRAINAGE AREA: DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL a _____________ __ _ GRADE IS REACHED ON ANY PORTION OF THE SITE. * * d TREE FENCING OPTIONAL STONE COMBINATION l---------- STABILIZATION SHALL BE APPLIED WITHIN N Q o PIPE OUTLET TO WELL 6•' SEVEN DEFINED CHANNEL 5, DAYS TO DENUDED AREAS THAT MAY NOT BE AT p 1 BRING MATERIALDOWN TO A LEVEL AREA BEFORE a- ' II lid /I , _ eaTER cLorx FINAL GRADE BUT WILL REMAIN DORMANT Cn 3 O, 15, PLAN VIEW TERMINATING THE INSTALLATION. TURN THE END 1 I (OPTIONAL) N IUNDER e AND STAPLE AT IY INTERVALS. • (UNDISTURBED) FOR LONGER THAN 3o DAYS. L o I L B ::;..tY (DOWNSTREAM VIEW) N L.L J PERMANENT STABILIZATION SHALL BE APPLIED TO I --I ° 0 R -� DITCH FLOW co VDOT AREAS THAT ARE TO BE LEFT DORMANT FOR MORE ; - FLOW v d IN DITCHES. APPLY PROTECTIVE COVERING THAN ONE YEAR. _ )i E EEL TO TIME DIRECTION OF FLOW. 4- USEFLOW 2y S, W W TO CHECK SLOTS AS REQUIRED. OF 1/ SECTION A -A JOINING MATERIAL IN THE CENTER OF I /A)� 1 FILTER CLOTH KEY IN 6-5: RECOMMENDED FOR ENTIRE PERBIETER THE DITCH IF AT ALL POSSIBLE. /AIH // lX - A,jAINk'% J 1 O M NOTES: 1. APRON LINING MAY HE RIPRAP. GROUTED RIPRAP, CAUTION +� J CLASS I RIPRAP BASKET, OR CONCRETE. tl VDOT IT3, #357 OR f5 COARSE AGGREGATE 2. L a IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED rL CORRECT TRUNK ARMORING CLASS I RIPRAP \ TO REPLACE SILT FENCE IN - HORSESHOE - WHEN 00 C / Z O HIGH VELOCITY OF FLOW IS EXPECTED USING PLATES 3.18-3 AND STONE 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT TRIANGULAR BOARD FENCE w O LESS THAN 6 INCHES, I�1 0 Source: Va. DSWC Plate 3.20-1 0 U) Source: Adapted from VDOT Standard 11.-1 O 3 (� Sheets and Va. DSWC Plate 3.08-1 Source: Va. DSWC Plate 3.18-1 Source: Adapted from Ludlow Products Brochure Plate 3.36-1 Source: Va. DSWC Plate 3.38-2 L9O \/ U 1992 3.01 1992 3'07 TEMPORARY DIVERSION DIKE 1992 3.14 1992 3.24 z Q co LU SAFETY FENCE SILT FENCE DROP INLET EXAMPLE PLAN VIEWS OF TEMPORARY CULVERT CROSSING U � 2 PROTECTION BAFFLE LOCATIONS IN W Y U) 0 0 I, CAPACITY OF PIPE CULVERTS C -: 2 X 4' VDDD FRAME DROP INLET Compacted Soil SEDIMENT BASINS VOLT /I COARSE AGGREGATE C' DEEP TOGETHER - FLOW - � LU LU A • VITH GRATE O 1/2 DIAMETER 1- LU E OF PIPEEARTH FILLCOVERED SON ��� 18" min I WHKHEYFRRISIY• ROCK w W -O .L. MEN1.5' MAX. FRAME FLOW D 2 NO SCNE GREATFR BY URGE ANGUUR _,..; .: is I INFLOW RISER Ul OCC o IIII'I 5 I III'I / z �. Z 3' MIN. IIIIINIIIIINIIIIIII \ ��. D/2 w U)Z ``( L = TOTAL DISTANCE FROM 77 v 4.5' min. �I _ NORMAL POOL ` T� PDIM OF INFLOW O IZyI GATHER\ AROUND THE BAFFLE TO �'A Y j FILTER CLOTH O In EXCESS HE RISER. V Z AT CORNERSLU IIJ '^ NORMAL POOL - .. - I I I IC VJ Y O _ U PERSPECTIVE VIEWS �� 0/2 RISER U -�,� ELEVATION W O STAKEI ISPACING BETWEEN CHECK DAMS a PERSPECTIVE VIEW FABRIC VIK1T #1 COARSE LARGE ANGULAR mi Q > L THE DISTANCE SUCH THAT POINTS ROCK OVE NORMAL POOL RISER INROw AGGREGATE EARTH FILLR I yt.,,t II A AND B ARE OF EQUAL ELEVATION 1 v BAFFLE ` ELEVATION OF STAKE AND ~ �L,' ., i L2 D/2 l A O FABRIC ORIENTATION DETAIL A _ N L LI + L2 L E iPi INFLOW 50' MINIMUM I i i I U 1 / I I 50' MINIMUM i SPECIFIC APPLICATION SHEETS OF 4' X a' X 1/Y EXTERIOR 6 TOP OF BANK ::: w w NI _ TOP OF BANK THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE PLYWOOD OR EWIVALEM 4- _ O w a; .,tsT I'I Ll� . ,,,.o uE INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER Source: Va. DSWC Plate 3.20.2 srarvn Gu++vu. IY = o 6 MAX RISER CREST ELEVATION d InU 5• MIN. wS"" m ""'° '°0iN4 THAN 5%) WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT i i i - EXCEEDING 1 C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT I I 4• I JOB NO. 0 PERSPECTIVE VIEW PERSPECTIVE VIEW APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS I POSS MIN. SIZE T SQUARE DIVERSION AND/ OIYESWALERSION AND/ 7 I I I I I OR 5' ROUND. SET AT OR SWAI.E OR SWPLE 222207 PLASTIC FENCE METAL FENCE IN STREET OR HIGHWAY MEDIANS. rasr T INTO THE GROUND. PLAN VIEW B' Id SCALE AS NOTED o Source: Adapted from Conwed Plastics and Plate 3.01-1 Source: N.C. Erosion and Sediment Control Source: Va. DSWC Plate 3.24-2 VDOT Road and Bridge Standards Plannin and Design Manual. 1988 Plate 3.07-1 SHEET NO. .�.E B 8n Source: USDA-SCS Plate 3.14-6 4 s H VIRGINIAEROSION&SEDIMENTCONTROL -- �♦ EROSION CONTROL ♦ / �� HANDBOOK SPECIFICATION NUMBER / \ V A A� / �' / � \ / \ \ \ \ \ � \ NOTE: ALL DIVERSION DIKES GREATER THAN zaio SHALL / SAFETY FENCE / \ \ \ \ \ \ \ \ - \ \ \ \ \ \ \ \ \ \\� REQUIRE STABILIZATION. PLEASE SEE PLANS AND 3.0a SA --/ / / x, \\ \ \ _ \ - \ \ \ \ \ \ \ ♦ � T.M.69-6L v V A _ �� _ _ � \ � � � v A � A � A A � \ V v TABLE BELOW FOR STABILIZATION REQUIRED FOR / LOT 6 T.M.69 6C / - - -- _ - - / \ \ \ / \ \ \ \ \ \ \ \ \ \ \ EACH SECTION OF DIVERSION DIKE. CE CONSTRUCTION ENTRANCE 3.02 / V A A v STUART I�AYLOR SMACK \ 1 GIBBON, EVERETT E JR \ \ � � \ \ \ \ \ V 'Tv , . I - \ \ CRS CRS CONSTRUCTION ROAD STABILIZA TION I- - D.B.5246-521 s FIELDS // \ \ \\ �� \ Diversion Dike Stabilization Lining JobNurrber: 222207 ♦ D.B.3415-704 /07 PLAT v 1.07 ACRES A v v v SILTFENCE 3.05 lP STORM DRAIN INLETPROTECTION 3.07 / / / / / / / 1 is , O / i / ♦ / / / / / �� u_. \\ 'SOIL TYPE 36C- \ - \\ \4 % LL . �. .� ClP CULVERTINLETPROTECTION 3.08 \ /✓ / // \ - r LL �. _ �_ ___- ♦ / /// \ _ _�\ �\ � sou-r�Pr�r DD �� TEMPORARYDIVERSIONDIKE 3.09 _ B \ - �� �\ � ! e e .. �,, ... W� TEMPORARYROWDIVERSION / / / l \ \ - - �\ O °� ' \� "` / T M 69 51B \ \ as � � \ _ �.�/ / / // REVISED ipT 3 \ / / /f BTOCKTON CLLC \ \\ -' SOIL TYPE o Q. ` MCCLANAHAN, DENT \\ \\`--%- \ \ \ 2.63 ACRES �� \ \ \ \ `. BOUNDARY (TYP.) 2Y \� :\ FIELDS \ \\ - ST SEDIMENT TRAP 3.13 \ - - - - - - %: �� � \ - u p ES- \�\ _ _ ' - : / %, D.6.5504, PG.6. 14 ------ �\ \ L Y.,� /'° \ ;� \. �•a rd S,� 8 \\ 0 OO SB SEDIMENT BASIN 3.24 - , / ✓ \ ♦ o \ \ 04 LL - Calculations M.S-5A% MmV=3.Ofpr EG MuV=4D EG3'lypeA,Max 7=7Df1s Sta From Sta To T. (min) I C Value Area (ac.) I CA c 1 12 (m/hr) Qr (cfs) Slope (ft/ft) Earth n=0.03 Jute(Sod (n�.0 Paved (n�.015) VeL Depth VeL Depth Vet I Depth Note: Section A Diversion D&e 10+00 1 15+00 8.0 1 01 1 2.99 1 1.351 4.9 1 6.59 10.04801 1 1 2.03,Jps 1 0.81 R Note: Section B Diversion Dike 15+00 1 21+20 8.0 1 0.45 1 4.12 1 1.851 4.9 1 9.08 10.06001 1 1 4.00 Jps 1 0.87 R Note: Section C Diversion DI to SB 1 _ 21+20 1 26+72 1 6.0 1 0.45 1 0.62 1 0.28 1 5.4 1 1.51 10.02801 1 1 1.86Jps 1 0.52@ Note: Section DDiversion DI to SB I 10+00 1 14+80 1 6.0 1 0.45 1 1.89 1 0.85 1 5.4 1 4.59 10+03001 1 1 2.58 Jps 1 0.77 fr Note: Section E Diversion Dike to ST 2 10+00 1 18+16 1 6.0 1 0.45 1 0.70 1 0.32 1 5.4 1 1.70 10.06101 1 1 2.57Jps 1 0.47 it Note: Section F Diversion Dike to ST 2 10+00 1 14+95 1 6.0 1 0.45 1 1.00 1 0.451 5.4 1 2.43 10.07801 1 1 3.110s 1 0.51 R Note: Section GDivenion Dike to ST I 10+00 1 21+13 1 7.0 1 0.45 1 0.78 1 0.35 1 5.2 1 1.83 10.075012.88 fps 1OA6 ft Note: Section H Diversion Dike to ST 3 10+001 14+10 1 6.0 1 OAS 1 0.70 1 0.31_ 5A 1 1,70 10,04901 1 1 2.36fps 1 0A9 ft OP O R OUTLETPROTECTION 3.a8 \\ _ - i / \ \ ` �` �```•� r _� \ C R - SECTION STABILIZATION LINING REQUIRED 0,01 RIPRAP 3 9 v �•.�� 4 O o -o� \ V / �A JUTE, EC z TS TS TEMPORARYSEEDING 3,3a -S-IL-TYP� �tJ UB JUTE, E C-z PS PS PERMANENTSEEDING 3.32 - - - / \ \ \ \ \ \ _ �+ \ \ AREA TO _ `��. O �'� ' \\ LL \ -\ JUTE, EC-2 �� \ \ SEDIMENT BASIN - DRAINAGE DIVIDE �olLTvvpc \ _ \ MU MU MULCHING 3.35 / / / - - \ \ \ \ _ _ .\ \ 2 - 7.16 ACRES (TYP. - _ - _'�� w \ - - DO JUTE, EC-2 BDTMPC + + +D+C + A\ \\VA,�i4♦ F ��/,/ /-_ ------- _♦ // //Q A- a �O �` _.• V �JUTE, EC-2 TREEPROTECTION 33B SOIL - �' BOUNDARY(TYP. 0 JUTE, EC-2 DUSTCONTROL soT TYPE SIC O OAPPROXIAATE O LOCATION Sl REAM JUTE, EC-2o SOIL STABILIZATION BLANKET 3.36 u'o JUTE, EC-2 ��� v� \ _ ----� T \ -- 0 ERHEAD / �� v ♦-- SOILTYPE / A m \ SOIL TYPE ♦ BOUNDARY(TYP.)--- BOUNDARY (TYP.) DD ENOSUREOPOST POSORtOTIVE v A V A\ ♦� / %"�� v \ o DOUBLE -WALLED FUELING TANK _ \ _ 0 �/ i/ A A y� v\ V♦� SOILTYPE7e V 1 y v v A I ALONG DIVERSION DIKE v \ v � A CONTRACTOR STAGING AREA WITH DUMPSTER W/ COVER, - / SOILTYPE 14D � v A� vv . �. \ VA� - _ - - � � \ V A � SF ,'� / �� A o �.�► �V MONUMEN /� ANP-POTTIES / e WIDE - SF \ �vV�A T, V� gas �'/ -' SOIL TYPE i -yao TOPOF, --� S CAL V A -WI WI E / -" I� / i i/ BOUNDARY( / OUTAASH///,� - DAM \ w/WIRE �� A sLEs �� \ SUPPOR \� / �� TYP.\,V v CONCRETEWREA �� v 'SUPPORT ♦��� A. DRAINAGE DIVIDE sa v - so; Ea c - `.°0\ \ T N1 59 51H' DIVERSION AND DIVERSION DIKE - ♦� 1 • \ _ �- ' �• I �$ ��♦ A \., TYP. A.. / / IL TYP \ '� GATE c ( ) v v / PROPOSED LIMITS OF o J,AME� P OR ,TO SMALL SEDIMENT TRAPPING DEVICE oILTVP �e r o as�� V A' 90°� V �P / DISTURBANCE _ �6.93 ACRES o�, KERRY D .SOUL TYPE E FOR CONSTRUCTION ENTRANCE ♦ v 4 ` v- L 2.148 ACRES r �a A . i ♦ PROPOSED FENCE CRITICAL '\ i O -i" --';LOPES h, 4 ` V / `` -� /�4. v - ♦� O ^! y I 6.7 1a I i ♦ A T.M.69-6M ST4 „ s i +, . ♦ AROUND SEDIMENT �, RE�iTO SEDIMENT' - - ♦ / 4 A \' \ ! �I SOIL TYPE i D.. �♦ TRgP *` 3_ / /REVISED LOT 7 �' ISAFI B - !>> ; i rTT' '.i:, ; � \ 4 \• 1 � TRAP - i.z8 ACRES I \ V - - y�.r,. ♦ _ _ �., SOIL TYPE r4D - l� , 1 - / I O E.C.ACK�MANTRUST % --- AREA TO \ -- / / � D 6.4733-z3 / `-� - PROPOSED FENCE o / / NOTE: CONTRACTOR TC / / o D. B.4733-20 & 21 FLAT I / / \1 \ \ 1= 2.00 ACRES P s��� AROUND SEDIMENT ' s g - _ ENSURE POSTIVE DRAINAGE o - - SEDIMENTTRA \ �\ TRAP 'wloE �" ALONG DIVERSION DIKE ♦ \ \ D.B.4456-4 -ate- -\,, - \ �a F 1 v B �a poM F ti • 0 D.B.3530-234 PLAT ,/ / /�� / > = -- = ' \� - \ r \\ C \ ST1 \ o t O \ Al SF O BOUNDARY TYP. \ \ \ \ x{ �, \ 99 / I� / o. 8 - 4 12x7o MIN. CE M \\ SOIL TYPE ( , ) \,I�.`` i`/\ \ F W/WIRE �8 �,, sOI TVPes CSF J q0 \ \ \ \ �- / SUPPORT / / // ; ; / %' /NOTE: THIS CONSTRUCTION / „� G ♦ . & ``' �\ 8A �� > 9 i '1 \. \ LAC \ i \ �� -- PROPOSED TEMPORARY \� \ \ \ \�� - DE ♦ \ UPPORT I / o A. \q S - /' -0PERATED,ANDMAINTAINEDBY J I / -- ♦ `�\\ \ <<- 1 y ` \ r _ / i / o �� O i�y.p©\ T.M.69-51 ENTRANCE SHALL BE INSTALLED � --- v� {IP \, STOCKPILE SURROUNDE ♦ \\ a �� i �oPOF 1 THE CONTRACTOR. ALL/ \.♦o ` ES HOIVI[ BY SILT FENCE \ \ \ \\ \ \'.,a`.' *.„ DNM \a' J. �mA i, \ \ ��� _ \ / /i o\'' ��'q GR6V988ACRIE \ 0 LL r % S q CONSTRUCTION TRAFFIC IN THIS/ / WASH . -..-..:I . \ o AREA SHALL UTILIZE THIS-`- FLOW DIRECTION ♦+ SOILTYP�g6,+ \,L�� \ ) \\ �, ,- i \ - \ ♦ SOUNDAR CONSTRUCTION ENTRANCE. i ♦\ AREA TO \ \ �\ _ago- ,s - BOUNDARY(TYP.) / o .•� \ S x O ' % ARROW (TYP.) ♦ AREA TO ♦ \ ♦ �9 \ _ , a / LL \; J 2A \ /,/ j / \) f / \I 1 1 / / \ \ �♦ SEDIMENTTRAPO -` \ZEDIMEACRES P\\ \\ \ \\ \�. �� pti \ \ {SF `I \ / oo 1.11 ACRES J �V A\ \\\\ \ ,���. / SOILTYPE8 B _. \ A V ♦ 4= 54 \ w WIRE , T.M.69 6G i/ \ DRAINAGE DIVIDE S61LTYPE - A v- SUPPORT solL v s LOT1 �94 \V AA♦ ♦, F 0�/� I4RE 7 / / F D v �� 5 (TYP.) / BOUNDARY YP.)� \ V �� As ♦ MU J B , 88 AC DID = I FRANK. DONLEY & / NOTE: CONTRACTOR TO \ ♦ ��e9° , ' o CARLA DONLEY / I / ENSURE POSTIVE DRAINAGE �// / - \ \ I ? ' ee o �� TS \ / t - 0 - D 6.3 80-82 / / \ A NG DIVERSION DIKE - ---/ / / ♦ - s E ay +, eaa ® 6ou \ / CRn CAL / �7 / I v / 46 I \ \ 'i\ a I-- -- STG ES 85 & 86 PLAT 1 /\V A v\ / � / /i a c Po ti_ -- 4 �. a'6 soILTVPE 5c ° - �,) *15T2 ; ` - SEDIMENT BASIN / ♦ ' \ ��- AREA TO 5 °- 3 / _ A E ' _ k . NOTE: ONTRACTOR TO / O I=7.16ACRES ♦ A ' �a ♦ ENSURE POSTIVE DRAINAGE \\ - __ �� ♦ + -- n. w/ WIRE s I ALONG DIVERSION DIKE --_-_- OILTYPE36C i-92o , _ V '^ 1\ P m OP 16UPPORT O ♦ 6\ C'QS y01 \ \ \ \ . r � O� /LL .,,� IS I r`i _ / / �/ / OP�� ♦ ♦ s LrVPE99c \� I �� y� PROLE Lv,� <v�2� v -_ -- -- ------ - - - w/WIRE // /; / /. - a� Vas ����.: VDoa w urroa ve�''�; ' /♦ A r _ / / - � - - - - - _ � ♦ � � a� \ � OVERHEAD � 0 _ AREA ODD = r s� 0 Q�Q' /� - - - aao -- - - - - - - ------93CONTOUR LINE4 1ja. ♦ - - i I _ ♦ LINE'S ✓ O�" ° 9r2 _ - _ _ - - -_ _ - _ - ♦ SOIL TYPE 6C \ l O O - - - - I - t� LT o �i / ♦ 1.89 AC .�� i V/ / O�4J Ov / 1 - - - - - - _ PROPOSED LIMITS OF \\•,��.ti% 3 �? J \ DRAINAGE DIVIDE . C9 DISTURBANCE =16. ACRES / o surf \', ♦ J TYP. , /// �� O - -- - - n, J ♦ �1 SAIL TYPE _ --/ l i / / - -f, mow♦ �A, 1 1 I / �o \ / / �� /_ -- _ ----' / //// / /\` BOUNDARY(TYP.) A\\\ solLrvPEase IF / I I V / / 90° PROPOSED LIMITS OF � _ - , / v / ACRES VDH MONUMENT - v �/ / v - PROPOSEDFE �E CRITICAL A v�' AREA TO DID FOUND \ _\ _ / / //\ -- SLOPES \ �� % SOI�rvPEaac \ tB� o.6zAC \ v v v T.M.69-19D� / �/� - _ - // % / /// , - AROUND SEDIMENT _A i _ i / / / / v - ----TRAP I �t / REVISED LOT o / / / �' v ° I STOCKTON CREEK LLC 4.56 ACRES / / �_ / _ SOIL TYPE / / I�„ \ \ 8\\ i / VDH \\ \ \ G.614 //-\ /// \ _ / / • �\ \ SF P LEri /" / fVI0NUN1ENT / DB5504 P / _ /,', I TS„ a \ �� v v /'/ �/ / / / /� \ ✓ / / - - -- - NOTE: SILT FENCE, SAFETY / / /- DD I}�I „4\ V AV A w/ WIRE FOUND FENCE, AND TREE PROTECTION \ ` -- - NOTE: CONTRACTOR TO J I 1„ „ \ \ ` \ - SUPPORT 50ILTYPE'4D -_ ENSURE POSTIVE DRAINAGE \ PROPOSED _.. O --� \ SHALL \ \ „ „ \ SOLTYPPE89C FENCEYT F DISTURBANCE THSE ARE \ \ 69O ?' / C ; ," \ \ \ \ \ \ AROUND SEDIMENT - / VDH \ - - / / / / / - OFFSET FOR GRAPHICAL � \ __ -ALONG DIVERS N DIKE / \ / /, /, MONUMENT,'/- - - , ; / / / / / /- / / -- PURPOSES. DRAINAGE DIVIDES_ _ _ PLEASE FOR SEDIMENT I BASIN 1'S' / I �„ - „„„ \ V A A\ BASIN FOUN, I,I� , - - - , - / / / ARE MEASURED ATTHE LIMITS v DESIGN DETAILS OF DISTURBANCE OR - c - - _ _ - -_ _ n5I (TYP.) CRITICAL _ - - SOIL P I VA\\ \ � - DIVERSION DIKE. � � �` � \ �'BOUNDARY� 1 b IS --- \ \\ / 1 F' SLOPES . Rj ICAL'LOPEs _ - - - - / ' - -�° / / // 1 A 1 FOOT LONG AND _ - - 4 FOOT B / r � F HIGH APPLES _ - \ - - OILTYPE is / ' i - „.i„„„ 9 50 -wriorcCnssAisroNE/„ y �` VDH FREEMAN,ARTHURHOR \\ \ \ OP '„` \ MONUMENT Lic. No. 035791,'a 1/4/23�� &InnrAT. EEC'` Z M Z Z Z U0 0 0 0 /A w U U U v' J J J Z Zow< < w dco m w w O Q U Q Q Q O O O LUZ Z 1- F Z O to 0 0 0 to 71 m W cotono J U1 U1 (o Z K 7 w N � r4 L� ti C'7 Cyi Ci7 N M z Q W � IZ L,J N w �/'� > V / Z_J LLi j z _J Q > z J LU O '_j LU � � O � ,� z p O wU � m z Y W LU W C) V..� LU UlCO � Cn U p Z w z a z V) III O J O O U W _I O 0 O N / - -- - - _ - __. _ �__ - -VDH - - _ _ i8 L i 6', W2 � \ - , � \ FOUND 47 729 ACRES � - �- / -- / MONUMENT-- ___ - - \ _ - _ _T M.69__-19A7 - - _ __ AONUMENT r = \ _ -- i6 - - \ ` GRAPHIC - J !--FOU1�D - - - - -_ -_- _ _ - -- -- O -JUST, 1 SEPH SCOTT & ---_ _ - -_ -- -- FOUND - E Rp� TE �Rl _ - _ _ _ _ _ - - - - - --, ., ; - - - - , _ „ sLs- _ - - -- - SCALE - GASEX--R..JI�T - - - -_\ - - _ ` \ (VAgjAB S SMOP RD51 -�` = - - -- - - - VDH eo ° no so so azo 21 AC13E5 __ LE-_D - Hew - - - - - - - - -' MONUMENT /�/ / / /j - - i _ _-_, - - - `\ - __ - - IDE TOP M^' W O\ A - FOUND - - LH 211) _ - (I RE T ) --- - \ - - - - ,,, MONUMENT -- \ I FOUND-__---- ____-- = ,�,� 1 inch - 80 ft. / - --- - _ - ---, VDH U w JOB NO. 222207 y SCALE 1 rr=80r SHEET NO. 5 Sediment Trap design #4 EROSION CONTROL 3 / / - _ _ - - _ SEDIMENT TRAP # DETAIL HANDBOOK SPECIFICATION NUMBER i / � I I � � I � l � - - - VIRGIN/A EROS/ON &SED/MENTCONTROL I r� T.PJL69-6L I / taainage pvolumrea(acres)(<3ac) 1.11 -�.-.� SCALE: 1" - 20' D TH Q� / r SAF SAFETY FENCE 01 _ - / \ / \ trap volumes pia xesTOE SToxe weix h / / I I \ \ / elevation 28 area 74 wlume(c0 vdume(cy) �Rr�xv v \ ` - 928 774 0 0.0 '"p I j L01 6 V \ A\ T.M.69-6C - - x CE CONSTRUCTION ENTRANCE 3.oa _� I / = a 930 1605 2,329 es.3 DRY STORAGE Y wxvai X � ' STUART TAYLOR SMACK / GIBSON, EVERETT E JR T O P O F SCOTT R. LINSZ �. 932 2700 6,587 244.0 x CRS CRS CONSTRUCTION ROAD STABILIZA TION 3.03 /� / /� ,D.B.5246-521� \ �' FIELD$ O j // / D.B.3415�704,707PLAT /,� �,-�=� ��� \ 1.07ACRES 0 0 0 0.0 WETSTDRAGE �•-g30- �� L� Lic. No. 035791� 1 4 23 SILT FENCE 3.05 /� / / / i / / /. y \ \'!� <, \ \ fExo v.,Fo) DAM wet storage: I i orag +9EE rare 3.13-1 cnmr aaa¢aa^ cuss x xww XI � X TONAL F' I / _ - - \ �- �- wet storage required c 67"DA 74.4 lP STORMORAININLETPROTECTION 3.07 � '' / � - / / j ✓//i A V _ � _ __� - ,� ,� ,� r a9 e9 (Y) ( ) / / / / / I ,' •� ���- ,r bottom of stone weir (ft) 929.72 i / / / wet storage proHded at this election (cy) 74.4 _/ i ' / / / / V ` `� ,�'e "" �/�- slope of wet storage sides 3:1 L ClP CULVERTINLETPROTECTION 3.08 `_ // - / ' ' \ \ -, \ \� \ "" __ �"///" weir length DA) 6.7 _ / / /✓ l it \, \ \ \ \ \ \\,\ r "v i LL �..-v._.... o �J�/ dry 9 P () v�C�CiC�( Xi�*_X x C�HC 3C�C C`C-3C�HC-X-X�C�C-X�C�C/C-X�( _ f .x d storage: bottom of trap elevation ft 928 _ DD - -�- TEMPORARYDIVERSION DIKE 3.og \ - _ - _ " / \ \ \ Is \ - LL w '" dry storage required (cy) (67 DA) 74.4 bottom trap dimensions: 21 X40X j f e crest of stone weir 931.0 top of dam elewtion (ft) 932 o -_ - _ j� T. M.69-19G \ \� \ \, \� \�' __. \ }. -. �/� /�- dry storage protided at this election (cy) 80.7 top width of dam (ft) 6' •/••�I �■+��.`,.. : �.FE .\ TEMPORARYROW DIVERSION 3.11 _ �"� -"-i/ / �" �,. slope of dry storage sides 3:1 top trap dimensions 387�0' -REVISED LOT \ v A / / _ - , �3� ��I / / V A� V A CRITICA / G ��T?CIpN CREEK LL - /� - �, ST ... v2.8D ACR-ES ------B.55G4.PG 614 - - - SEDIMENT TRAP 313 2.63ACRES ♦ X SB SEDIMENTBASIN 3.14 v v A � - �� �,'� �RF /. ♦♦ 0 _-�-�- -- -_ / T / -\ \ •• \ \ \ .. --gym - m�--,..,_ 'm A S - -- - -- -- ♦ • lC i /- V. \ �$ A a OP �/ A��v ,__ �/ /• .,, � ♦ / n M ♦♦UOO M OUTLET PROTECTION 3.18 01 ; � O w •••`A� K_ 8p ♦♦X zQ RIPRAP --- 92O g Q319 CD LU ROCK CHECK DAM 3.20 / //�. - - I A � - i U Q co m m O OEMPORARYSEEDING 3.31 o z F- 4TS PS PS PERMANENT SEEDING 3.32 AREA TO - - - - - -1 - ST493 X� \ FLOW ARROW - �/ _ r.�. to m to LU - \ SEDIMENT BASIN 9zz - �. / OMU MU MULCHING l' , - i j v v �� A TYP. / _ / _ _ �i , - ADDITIONAL LOD FOR DRAINFIELD �� 1=7 44 ACRES _ - �' m m m 335 INSTALLATION ONLY. SURROUND DRAINFIELD- \ 1a -- \ _ rl ( P� _ TP M TREEPROTECTION 3.38 / - - \ \ LOCATION WITH SILT FENCE (TYP.) �� k - - --- - - - - 9 tl y LL ' - - - - \ H z of I=- /v♦ V �� X - - - - - - - - - - I rl ARPRLJXI IVI A I r \ R v z r� ro v - - .� DC ,, LOCATION STREAM V M v - - X DC OC DUSTCONTROL 3.39 \ -- - \ \\-TOTAL ADDITIONAL LOD - z.S1 ACRES - : , \ - o O ERHEAD SOIL STABILIZATION BLANKET 336 U LIT'Y � LI Ei NOTE:CONTRACTORTO ;/ '' /- v ENSUREPOSTIVEDRAINAGE VDOTCLA ►`% \ v �� / �� \V\i I v \ V CONTRACTOR STAGING AREA WITH % / / A ALONG DIVERSION DIKE DOUBLE -WALLED FUELIINGI TANK i AT,RAEAP4O= - �+/ �a. �♦ � - Pv\\ A 1 LINED "SIOEs _/ MFO-0VN1DJUNH DUMPSTER Wl COVER �� V� v\- DITCH TO' AND PORTA-POTTIES POLE STORMS SEDIMENT -�pAFCONCRETE WASH CRIBAM PPORTwWMD E\N�VAAS \ IRE SLO Vw V A A\� A \ - rV rV rV OUTHIGH w . .48ACRES PRO-ZIL 'HIGHori -s DIVERSION AND DIVERSION DIKE r " \ 3 . � ��� �� V A� �� , V� � �\ \ �� �. v v � ►�� / I I I � PROPOSED LIMITS OF '•� ` / ATES,�J,���S I I I I / // /,TO SMALL SEDIMENT TRAPPING DEVICE ♦ 40' 1 �s �� �, � VDOT CLASS Al- A V� , �oO Y� �k DC DISTURBANCE = i6.93 ACRES \ \ KERIIY 1 v v v o 0 0 0 a / //, FOR CONS ENTRANCE \� � � / �/ CONSTRUCTION ENTRA /► " = LINED RIncAL •i / // �6.7 ST ° RAP � DITCH TO /T.M.69-6M AI �, A 4 '..°.,uy STORM STIR io v� AV A v�V ►+. 3= 44 / / .^�. "" V VA\ v ti II \ REVISED LOT 7 v B SAF M "GRASS LINED DITCHa' \ ST3 +� F.C.ACKERMAN TRUST v a i _ _ _ v v �� - / P, -- TO STORM STIR i8 AREA TO A \.•� �;A�. V `90 ��� P o P5 a D �. VA A I I � .": e \ "" -Y "" PROPOSED FENCE o NOTE: CONTRACTOR TO O _ _ v I I �ryi / / D.B.473 -2 & L9 213 LAT -- - �SEDIMENTTRAP �. -� _ A v / � s � � � 1 I ss► , ��� v Ass ♦ N � ) I _ v -- - AROUND SEDIMENT ' � � � SURE POSTIVE DRAINAGE / // // / D.B.4456 4 ► 1=1.5oACRES v N DIVER DIKE r� - / �// � i , � .,� � 'WIDEV / \ / III / � V Ov \ �iv '•� \ VA(� � � � -- ..,.�_..•." � �� `°N BM N D.B.3530-234 PL' T O G EI TRAP SIGN � I i2'x7a' MIN. CE // �I N pC ,, ' ��� v mpo`� v `. ♦ 1 --- o V\r �v A SUPPORT v �} VDOT CLA55 AI LINED �I / V •.� \ V v NOTE: THIS CONSTRUCTION / 1 . A v +� w/WIRE j l / - PROPOSED TEMPORARY ., VAV o +� DITCH TO STORMSTR8 J v L� ENTRANCE SHALL BE INSTALLED �' t - / /OPERATED AND MAINTAINED BY / / ► 6 �t°e CIP v IP - + V p9�y Z / /� STOCKPILE SURROUNDE p oe SUPPORT v 10 , �) - V � T.M.69-51 t / a BY SILTFE M / `+ / o y�<'� B GRAVES HOME04 Q THE CONTRACTOR. ALL / RACK ► 0 A oP A \ ! I --I / - l-_ i � CONSTRUCTION TRAFFIC IN THIS i a� MU A • �A h'�sev a-� �� :�/ - - / O / 26.985 ACRE r-t AREA SHALL UTILIZE THIS �� / \ � RED / / o /� v O N L1J CONSTRUCTION ENTRANCE. l I �' GRASS LINED DITCH �A �AREATO., ► -V / bn=�.94Ac ,--',' o v �� �� CV (� - /// TO STORM STIR 1 \ 7S SEDIMS ENT TRAPT v --�- - S �y�_ v - - SF: / o \v v �<G 5 Q a - z. z ACRES � / � A RE M.69' _ 8 HIGH WEIR / / \f \ V �. DRAINAGE DIVIDE �' �` - - ° v ' SUPPORT FRANK DONLEY & / � / % �\ � � rl � .� 4 � � w/a�3 HIGH s�DEs' � DITCH TO STORM STIR �� r �AA \ � J LOT 1 / � / / / � 1 � f � , k •� � - a6 (TYP.) � / �-_ / 3 v � � / 9 / ► MU es e CARIA DONLEY I v tv x - s� i /ssr• ' CRITICAL �o l / / \ tV � x � i � / �• s � � � ', � ', ` � � �� . "� 1 -AREA TO � D.B.338o 82 1 X ► NOTE: CONTRA 7 sLOPes� \ (L 85/& 6 T I /� _ - R V ♦ �`�.- EDIMENiBASIN / pp I I o / / ►� RiD / = 744 ACRES �. ENSURE POSTIVE DRAINAGE o �,°LU l /8 �J I l / c / o . I ALONG DIVERSION DIKE LL _ IS -940 - ��. 6�,__♦ �. �� IP .�•• �� d - �� (� oVDOT CLASS Al LINED DITCH i DC , ' `' WpOOF �J P5 / A • O _L9 I --I � TO STORM STR P 1 O �w > I- / _ i r9 0--_ , .^� WI WIRE DA=i.ao AC � _ _ - / - - .� -S °i �� �` ooMUPPORT IP e D XI 4/r ISM I -I OTE: CONTRACTOR TO . SF 1 OP I ENSURE POSTIVE DRAINAGE _ _ - - ,' / V v \► �8 �sOLE w/WIRE / /----�� �� vooranssllsroNE z, ► �� � OVERHEAD Q 0 _O ALONG DIVERSION DIKE - -" _ . �1 L- o', w-uRro s�4 5 /' .�� �X ��j �.��_. - -- IS ----____93_ SUPPORT .// A. CONTO�RLINE •� r �LINESY �I�OO �r �. �/� / U \ - _ _ 2' _ _ - o �� / VDOT CLASS I LINED _ DRAINAGE DIVIDE �O / / t t � Z 0. PROPOSED LIMITS OF � ' / a� � � / / / I I DISTURBANCE =16.9ACRES` - s _ / DITCH TO STORM STR 6 . (TYP.) / Y LU �� v - - - - - ----' / - A-�-�G / ♦ / m� W / / / / / j ► - ���� W %JLU _ / soo_ _ PROPOSED LIMITS OF \ _ ► / V\000 DISTURBANCE =16.93 ACRES ► z / Ul VDH \ " - - / / i l l / / iz // � �X->4 " �/ '� / _ U o l v / 9 - lull // / MONUMENT V - / - � CRITICAL A � i/ � •E ?BD � L ----'' / / - - PROPOSED FENCE SLOPES �- X ,�\a / r� � W �Z / FOUNDS T.M.69-�9� v / X / // // /\ _ AROUND SEDIMENT ►w� �•f�i �, Z REVISEDLOT3 / / /// / ��� v --TRAP v V / W Q z 0 STOCKTON CREEK LL'C,� - , `' / / ///// % _ - 4 x� �•__ ss /i \/ \ \\VDH z ` \ v / 4.56 ACRES / - / - ��/ - - /// / �-�� / 8��� A /'/MONUMENT (� O , .B.5504 � _ ,_ \ J D , PG�63.4�� �� , / _'�------ -' � / _ -_ �� k� � SF NOTE: SILT FENCE, SAFETY �Xy 1. w/ WIRE 04 ��// O - - V� FENCE AND TREE PROTECTION v �► ' > \ SUPPORT s° �) // I LU O \ NOTE: CONTRACT R TO \ ADDITIONAL LOD FOR DRAINFIELD v - \ / -SHALL BE INSTALLED AT LIMITS v INSTALLATION ONLY. SURROUND DRAINFIELD - --_B ENSURE POSTIVE DRAINAGE �y �`. ^ `, ".� '. M ".� \ f PROPOSED FENCE // / \ _-- --- OF DISTURBANCE. THSE AREA v v v 90-- r ' ". » ' ` V ADDITIONAL LOD FOR DRAINFIELD - - - LLJ LOCATION WITH SILT FENCE TYP. v 'ALONG DIVERSION DIKE =: v f AROUND SEDIMENT ( ) - - OFFSET FOR GRAPHICAL I - - = " ' ' ' : ' :," ��'\ INSTALLATION ONLY. SURROUND DRAINFIELD VD � TOTAL ADDITIONAL LOD = z. i ACRES -- - `� v �� - PLEASE SEE DETAIL SHEET8' I �' \ BASIN / \ / S- PURPOSES. DRAINAGE DIVIDES \ - - z - ' LOCATION WITH SILT FENCE (TYP.) MONUMENT / / j / �/ / _ - `- FOR SEDIMENT BASIN3.'S e k \ (� FCUND '� - / - - - // A \ DESIGN DE ► 64 \ + TOTAL ADDITIONAL LOD 2.SzACRES I \ \ \I RE MEASURED OF DISTURBANCE OR \ _ - - TAIL l ► s 6 _ \ / /�! i I \ \ \\ \ . CD -/�/ / / \ , I ' ~ii6' Lo '\ CD CRITICAL 1 I \ \ \ I \ \\ �I - _ IS DIVERSION DIKE.� 1 / - ----'� j / / / / / / \ - CRITICAL SLOPES-== - - - - - - - / 1 B2 ss o + �/� K 144 FOOT LONG AND +� FOOT HIGH SLOPES _ / � � --' , I , � I H BAFFLES STONE VDH FREEMAN, HU P 6E6 \ i MONUMENT NN F w / °. OP °� T. 9 5 \ coos w�Ss Az _ r' e� -- - IS - �� R H OR w - - - ND --- � AN� R I j T -- - - FOU - - __ DIH T.M.69-19A7 _ -_ r -- - j 47J7029 ACRE d m -MONUMf1�1-- - JUST., JOSFPH S�OTT 8�. - - -- - OU79DMONUMENT - S RO _� - --- - / / ---- _-- -- ATE �ils\ \ i, -f ND_ - 5 Y . -- �T V �5 \ - -- - - - _ \ \ GRAPHIC SCALE cos No. - �' _ - � CRITICAL- - A E R ST -- RS �� - = SLOPES- -- - -- - J - - VDH eo o ao so sc o 222� lU _ \ 21ACRES- - --- - l - - - N� - �\ \ 7 8'WIDE TOP OF DAM -VDT OUN[i� \ L SCALE / 1 mcIT =E 80 ft. 5 O. -- ---- - _ - \ \ A A ]N / SHEET N JN10NU- - \`\ V'DH 6 EROSI EROSION CONTROL HANDBOOK SPOCIFCATION NUMBERTRO - / / / i l /l / r L I �11 11 ' / / \ \ \ \ \ \ \\ \ \ \ \ \\ o P PT �, SAF SAFETY FENCE 3.01 - � � LOT 6 \v A TM69-6C CE CONSTRUCTION ENTRANCE 3.02 \ ..- / / \ \ \ \ �c, \ ; STJARTTAYLORSMACK v�v \ _ v v / / CRIncAL GIBSON, EVERETT E JR \ O SCOTT R. LINSZ OCRS CRS CONSTRUCTION ROAD STABILIZATION % D.B.5246-521 \ 5 FIELDS ' / ' \ \ \ \ \ \ - -- -_ /' ,� I SLOPES �� I 303 D.B.3415-704,707PLAT ; 1.07ACRES / \ CD Lie. No. 035791� SF # SILT FENCE o \���\\� i� LL --/ -- \\ \ \ -.__ -�� / / 1_ /-'-... "app� 1/4/23 3 i _ / - v v ----- v p r / v - - - / .'3G �S�y`IONAL V, lP STORM DRAIN INLETPROTECTION o - \ \\�S - o-- e - - _ = = _ _ ` _ - - v \ \ / A _ - - / a ClP CULVERTINLETPROTECTION 3.08 / A A / �• V // r O �� / DD - -111- TEMPORARYDIVERSION DIKE 3.09 - . V A S o / V A , T.M.69 19G _ / / .PS + T11r VT.M 69-5 -0-��I TEMPORARYROWDIVERSION 3.11 CRITICALb EI M CLALTOCTON CfEK LLC OPFEDS2 63 ACRES O SEDIMENT TRAP 313 as ----- O 2.80 ACR 864 D.B.5504, PG,614- (3p v SB 0 SEDIMENT BASIN i vA \ ♦ = k v O nn^^ } O 3 4 / ``►4, O -yam �. �1 - \ u. r� �Q/I/ • _ \ — i % / /i -��+/+ \� \ Z Z / / V — % / OP ORR .v-- -- -�A y V / I / �/ / - \\\ \ \V v -- --- �`.,.,,.,•x:.:� '/.O_ a-- -. w\... ,_ �_ y ` �OUTLET PROTECTION w UJ U UA=6,wz=ir VDOT CLASS Al ST O� RIPRAP 3i9 b„Q - QKis a' PTSS PTSS ROCK CHECK DAM 3. zo DRAAINAGE•V AREA-\ \ TO_-/ - •- �._ ..�� SLOPES V _ ------ CRITICAL D V Uaz 0(A w ¢w ¢ TEMPORARYSEEDING SEDIMENT MENT BASIN 1=1S 8 ACRES b O uj OO O z H h z z zO b ---- V) PERMANENTSEEDING 3.32 VDH w EROSION AND SEDIMENT CONTROL PLAN PHASE IIIA \% w m , ca MU MU MULCHING 335 / / / - - _ - \ v ADDITIONAL LOD FOR DRAINFIELD �� �V _-- - _--_ - - 0 SCALE: 1" = 8o' LLI Ln Z) m C, INSTALLATION ONLY. SURROUND DRAINFIELD �; "�tie TP M TREEPROTECTION 3.38 / - - \ \ \ LOCATION WITH SILT FENCE (TYP.) �. ' N -' - - - g18 ►- o \ \ z of I- \ \ \ TOTAL ADDITIONAL LOD =a 1 ACRES _ -_ _ APPROXIMATE �., \ \\\ \ \ \ \ \ z N M v DC OC DUSTCONTROL 3.39 5 _ o b c OCATIONSTREAMw \\\ \ \ \ \ 9' t + + \ ERHEAD 01 \ \ BM SOIL STABILIZATION BLANKET 3.36 \ - O - + + + LITY (� PSr L \ V A A \ -- _ ` \ V 1 1 ///� / ADDITIONAL LOD FOR DRAINFIELD` Q-`--- k IIII I� INSTALLATION ONLY. SURROUND DRAINFIELD LOCATION i __ \ °b \ CONTRACTOR STAGING AREA WITH TOTAL ADDITIONAL LOD z.51 ACRES \ \ -__� - \ \.. \ \ } DOUBLE -WALLED FUELING TANK, j - V v ��� v A� o �, VDH A V AV v i DUMPSTER W�/,COVER F�N AND PORTA-POTTIES CONCRETE F c WIWI POL WI WIRE SLOPES SUPPORT`+ 0 6"HIGH WEIR \V\ \ \v vv A \\ , N N N M �CL)_ O ODTAREA w/i'HIGHSIDES \SUPPORT R/W DIVERSION AND DIVERSION DIKE / \ / \ \ \ \ \ / \ �' c 4 'e \ \ \ \ ¢ N N N o // \ / TP _- PROPOSED LIMITS OF b. c / ATES, JAMES P R \ o n i rn / /PTO SMALL SEDIMENT TRAPPING DEVICE \ I - - v v �� y \J A V A 900 ► o / v v DISTURBANCE - i6.93 ACRES b, `/ h - KERRY D v v o 0 0 0 FOR CONSTRUCTION ENTRANCE /' -°a, / } �� cRlncA� v v Vim' �+ / P / v��� © VA 48 ACRES v v SLOPES / — — b'� �s� V Al III l ' A T.M.69-6M v� \ \ i � /' v � v v , v v� ► / / " \ - -o� oPS �REVISED LOT 7 o i E C.AUS y11II\ II I��IIIII I 'v \e D.B4733-Z3P, -- S L9 \ Ir d)D.47332& 21LAT o/ ss3 D.1:3.4456-444 - D.13.3530-234 PL T } �� _ ./ / �\ f�q ➢ — — — �/ �� i� / o\ \ V� v A vv \ M x � ►V VA`A A \ \\�.r �. -v- -- v v pp ", erH_ IG�H 2W,'' EIR SF �r � a9 P\93— `1�,� a-as���c`��►IPs r,; . IaP � r. -v v \ A.ava__-- — - / /" —9 "- rl LL \ i� � C 1HIGHSIDS w IRE CMJV NSUPPORT CI oNOTE. THIS CONSOW/WIRETUTDA-4.o4ASUPPORT �ENTRANCE SHALL BE INSTALLT.M.69 51 OPERATED,AND MAINTAINEDBY GRAVES HOMECV Q �o THE CONTRACTORALL/ CONSTRUCTION TRAFFIC IN THIS, /WASH RACKJ 26.983 ACRE J C�II NI Z� La1 JAREA SHALL UTILIZE THIS o �-o�S3Ac CV �CONSTRUCTION ENTRANCE. 5F Q QDRAINAGEAREATO IREDA e c SEDIMENT BASIN 1=15.8 ACRES 8'HIGH WEIR PPORTT.�696G 'HIGHSIDES' L1FW/1331g 46 FAKDONLEY & CARLANLEY l DB3 CRITICAL 8082 6 SLOPES85 &PLAT � z - IS 94 - / I /IP V �-_ � ,/ I I /- vOI �� DA=5.57 AC LL - w/WL9 P__4 IRE -- /r N I _ \ - - - - - _ w/WIRE /// ' / , / UPPORT pp ,. ._ . PS / is LL Q Z / / r _ SF / / / / _ _ p � _ � A � I P S V I t ee�O \ - ' - / voor anss II sroNE, \ i i / �° �® LE / s w' A _ ' O UTILITY D o/ O Q ---- ------ ---- --- ,"-SUPPORTS/ /i / / - - `� / L= o',w uPros A �� I CO U 7 _ _ PROPOSED LIMITS OF _ / / coNrouR LINE V / C P a - _ --I l I O(,� �o — ---_ � 1 A / _ � v LINES � V� / o" �/�i �� U ��/'� � _ __ 3 i i// z I / 1 1 / C9 (i C) - - - DISTURBANCE=16-93ACRE5 - �, ► ► //// _ I I- I� \/701 I i Qom/ -- / / �' / - - i / r P �s Lu PS 8� ��� I San- - )' , A a // _ ILu 9o0 % v v A PROPOSED LIMITS OF _ \ � �_� � I _ DISTURBANCE 16. ACRES MATC LINETHS HEE� ♦ ' ul VDH MONUMENT v / I cRmcAL FOUND SLOPES \ T.M69-19p \ / W� Q QREVISED LOT 3 / VDH Z STOCKTON CREEK LLCv 4.56 ACRES,/'/ / / / / \ s. SF Y \ - MONUMENT (� D.B.5504, PG.614- v v _ -- // � / ��. � / � � POLE IS FOUND ��x NOTE: SILT FENCE SAFETY ' � �, v _ _ � -- / / � M w/WIRE �( � ' \ FENCE AND TREE PROTECTION \ - SUPPORT LJJ 0 O SHALL BE INSTALLED AT LIMITS \ / / i �N y / v INSTALLATION ONLY. SURROUND DRAINFIELD v v 8go __ ADDITIONAL LOD FOR DRAINFIELD ADDITIONAL LOD FOR DRAINFIELD �� / / / ', \ /' / '�/ / PROPOSED FENCE / --- v My / / OF DISTURBANCE. THSE AREA v v / / F. ' : " . ;; v� /f AROUND SEDIMENT / LU '� LOCATION WITH SILT FENCE (TYP.) - v v / ' /, :. x . / / INSTALLATION ONLY. SURROUND DRAINFIELD / l VDH _ j - - i / / /' _ - - ' �' OFFSET FOR GRAPHICAL v v - � � � -- � � ""' / / `' / - TOTAL ADDITIONAL LOD = z. i ACRES -- ; v PLEASE SEE DETAIL SHEET 8BASIN - l 1 Q MONUMENT -PURPOSES. DRAINAGE DIVIDES - v -- / - •'"' '' ` `� x f LOCATION WITH SILT FENCE (TYP.) \ - ��� _ � � ' / � � � v �� / `-- FOR SEDIMENT BASIN 1'S A a' V A V C� FOUND A L �� / //' / -" ARE MEASURED AT THE LIMITS `v-v DDETAILScc e��" TOTAL ADDITIONAL LOD =z.51ACRE5 �1 \ \ / - _ �� - / iCD v \ �8 - / DESIGN / 1 s A + ," i' % �ii 1 -_ - I / , s OF DISTURBANCE OR' - � µ - - v _ __"� / i 11e� `V` �wV A +� �' LE;p CRITICAL /� l \ \V CD /.�� \ \� IS DIVERSION DIKE. CRMCAL SLOPES- _ - I r� 1 B _ \ + 144 FOOT LONG AND I \ V A \ \ S ss' A i - _ / \ _ __� --v -- / / m ► ,,, s .sFOOT HI BAF FLES 50w,,,'.., \v FREES \, _ - vooranssAlsroNE/pP\ MONUMENT J R ^�." - -- , . :,. sue-'-� Al� � i OANN F IJ --- — —\ `— —-�--- \ r- L=s6', Wi=6, Wa=s8�..� ND /A T I w - _ - - - — -- - FOUND _ VDH._'-� �__ =_ � 15 I �. �� -_�� /, 1 M 47.729 RCRES � I � x VD _ MONUMf14T -� —� T.M.69-19A7 _ _ — _ STA r - - \ / d Kn . _ A — ---- JUST JOSFP - ---_ _MONUMENT TE - GRAPHIC SCALE JOB NO. FOUND ---- ,--- - HSCOIT& __- -- FOU791) __ �, RO(l; _ `- - RI -- -,-- \ - CASEY R JUST - - _ _ - - ; ; , �� CRITZERS g rE 151 - - sLOIVEs -= = = = " - - VDH ` 222207 , — . --- �� _ — —=- - \ 80 0 40 80 160 320 - - - 21 ACRES - _ _ ` - - - f VARIABLE SHOP ROAD_ , - __ j /// '��-- �� ��- -.--------- "•a•4. RND /-W- � _ - - 8'WIDETOPOFDAM `�- GALE _ _ _ 1VlO --- --- THE \ VD - — — --_ _ --OU 8 MONUMENT- -R -----v �_� v vv v vv 2 v �v A v �v r --- - __-- �-, A -- A ( IN FEET ) / — / - - \ \ \ P!:T_ _ \ ,� - -- ^\ - SHEET NO. � VIJ,F'� - - - . \ - A \ 1 inch- 80 ft. v vv� AV - - - r E � I j I � I 1 I r l 6' CLASS I RIPRAP x X EMERGENCY I X SPILLWAY W/ x FILTER FABRICX UNDERLAYMENT I I (DEPTH=z') x X or 4:1 SIDE SLOPES & • CREST ELEV.= 867.04 1 x 1 J X � I•I \ i X \ X X X x IVI X X X X iv \ X X f Sediment Basin Design #1 X !� +�+�+ V A IT 0 T X X X \ \ MIN. 1• WI SPILLWAY X X X f drainage area (acres) 15.8 rWITHOUT CREST OF EMERGENCY 'A♦ X X �/ A X V 9 V ) SPILLWAY X ♦♦ X X X X -A \ PROPOSED FENCE f basin volumes: (using 2' contour intervals) DESIGN HIGH WATER M X X X X AROUND SEDIMENT BASIN f elevation ft contour areas volume(cy)(zs- R. STORM ELEV.) X X X 4 FOOT HIGH BAFFLES �C X X X f 860.00 O 5945.0 (�0 Ds• -- - - --- -- X X X / X .� \ \ X i FOOTLONGAND i X \ X X \ \ MIN , o \ SCOTT R. LINSZ ♦ X X X X X X X X \ X X\ X 862.00 8131.0 519 PoSER X X. X� U Lie. No. 035791 .1, 864.00 10599.0 1211 DRY s DRAGE o �uGTEEaNc X X// T ■■■ ■r r■■y� \ � 1/4/23`4 X f • wEr • sroRAGE / X i f \ 'SIGNAL E� 866.00 13348.0 2096 X / c / � '� / � i �'s / 868 X 868.00 16330.0 3193 �I. 866 (E WET C.Y./STOWEACRE) REDUCED X X/ X 0.00 0.0 O O 34 C.Y./ ACRE) STi 4 X X X / / 8 6 2 \ X X wet storage:Iv �► // / / X X wet storage required (cy) (67*DA) 1059 design high water 866.96 X / X 76 f / 8 6 o / X X dewatering orifice elevation (ft) 863.56 top of dam (ft) 868.00 X 0 r4 / / X wet storage provided at this elevation (cy) 1059 top width of dam (ft) 8.0 X X 4 Q X f available volume before cleanout (cy) (34*DA) 537 bottom of basin (ft) 860.0 X X cleanout elevation (ft) 862.03 approx. bottom dimensions: 116x55" X tc i X / X distance from cleanout to orifice (ft) (> 1') 1.53 upstream face slope: 3:1 downstream face slope: 3:1 ti X Ckj M / 1 \ \ Xv X dry storage: X XI /` Oi i �� '� O n = D \ X X\ dry storage required (cy) (67*DA) 1059 baffles: YES X / ,A J U O O / / X principle spillway crest (ft) 866.04 length of flow, L (ft) 114 X %-' \ V/ J JLU dry storage provided at this elevation (cy) 1059 effective width, We (ft) 117 * X X \ Z o a a a i X diameter of dewatering orifice (in) 8.0 L / We (baffles required if < 2) LO X \ a m w w w \ X X\ diameter of flexible tubing (in) (orifice+2") 10.0 XI / X +i O � a m m m C X\ X collars: YES X /i+ tt �� H w ` 0 0 0 S131. 1 X\ X runoff depth of water at spillway crest (ft) 6.04 X \ X 6 U) o z r r X C (use 0.45 for bare earth) 0.45 slope of upstream face (Z1) 3 X ♦� +ii/ O p M o O O tc (min) 132 slope of barrel (Sb) 1.33°/O X X X X\ \ \ ♦♦ +�+� O ~\ Ln 4 12yr 3.6 Q 2yr 25.3 length of barrel in saturated zone (Ls) 44.66 Y' X ♦ +� / w m g g E X -� X 125yr 5.3 Q 25yr 41.1 number collars required 2 X X V + �� X X ��+ Ln Z)� D 'I X } ♦♦♦♦ X X X I X dimension of permanent collars 4.2'x4.2' X X� X v X \X �♦♦ _i p Ln In X 868 X I Principle spillway: X x ♦\ D r- NZ of of v - O P VDOT CLASS Al STONE un uunuunun X available head (ft) 1 0o emergency spillway YES X X X : \f Z nuurrr X X x • \ I� QO I I I 68 X X XI diameter riser (in) 36 required capacity (Q2511p) (cfs) 4.1 t� X X ♦♦ X L= 2 W1=6 W 2=1 X spillway capacity, Qp (cfs) 37.0 bottom width (ft) 6 �I� x x X ♦ 3 , ' ' S 10 966 X 8' WIDE TOP X X diameter trash rack in 54 sloe of exit channel % 10% • . EDIMENTTRAP #i DETAIL X r ♦. / '♦♦ X 864 _ barrel length (ft) 74.94 minimun length of exit channel (ft) 32 ���. `♦ ♦♦ SCALE: 1" = 20' 0. ♦♦ X X X OF DAM - 868.00 �, ' X X ri head on barrel through embankment (ft) 8.04 crest of spillway (ft) 867.04 �I�. ♦♦ f x �C - - X ••■�rrrrrrrrrinr rrrrrrrrrrrr� X 862 X X X diameter of barrel (in) 24 ♦ \ �T X X X X X X Sediment Trap design #1 I X X X 860 X \ X X X X X X X X X X X NOTE: PLEASE SEE SHEET 11 FOR OUTLET PROTECTION drainage area (acres)(<3ac) 2.00 TC 8\ X trap volumes . CREST OF STORE WEIR V '/APoABIE x-x-x5x-x-x-x-x-x-x-x DIMENSION CHART FOR SEDIMENT BASIN #1 (DIMENSIONS elevation (ft) area (so wlume(cf) wlume(cy) RO _ j6"DIAMETERHDPERISERw/54"DIAMETER TRASH RACK. ARE THE SAME AS DETENTION BASIN OUTLET PROTECTION) an. 896 1339 0 0.0 0 N N N [1 RISER CREST=866.04.RISER TO INCLUDEA8"DEWATERING \ 898 1954 3,274 121.2 ORYSTORAGE - r VARUBE F o 00 o NV ELEV.=863-56). RIDER TO BE \ K` X X X x x X x X X THICK 30" GALVANIZED COMPACTED STEEL BASE PLAAGGREGATE SIFT 6" INTO OVER A 6 6 X 8' THICK \ 902 3553 14,131 523.4 N O o CD CD CD +�+ PERMANENT74.94 LF _X�K x X REINFORCED CONCRETE FOUNDATION. NOTE IF STEEL BASE IS USED SPECIAL 0 0 0 0.0 wErsGT �E 24" RCP BARREL y�y`' \ r�LYER cI.oTH ORIGINAL -INV IN=86ot INVOUT=859 _ ATTENTION SHALL BE GIVEN SO THAT 95% COMPACTION IS ACHIEVED OVER 1 O NO D THE PLATE. AT TIME OF CONVERSION TO DETENTION BASIN RISER TO BE ELEY - ` - 1.33/0 SLOPE - CONVERTED TO PERMANENT RISER STRUCTURE s - - - _- wet storage. 3E PLATE"'-' COARSE AccREcn E' `ass c RiPRAP _ - -- wet storage required (cy) (67*DA) 134.0 GRAPHIC SCALE bottom of stone weir (ft) 898.15 SEDIMENT BASIN#1DETAIL wet storage provided at this elevation (cy) 134.0 zd D 1D 2D 4D 8o slope of wet storage sides 2:1 ti SCALE: 1 = 20 weir length (ft) (6xDA) 12.0 co NOTE: SEDIMENT BASIN WILL BE CONVERTED TO DETENTION BASIN IN PHASE IIIA dry storage: bottom of trap elevation (ft) 896 (+j U•) ( IN FEET) dry storage required (cy) (67*DA) 265.8 bottom trap dimensions: 37X41' Z 1 inch = 20 ft. crest of stone weir 901.0 top of dam elevation (ft) 902 N 0 •�� dry storage provided at this elevation (cy) 265.8 top width of dam (ft) 6' 1--1 `I A \ \ � \\ X \ X \� X slope of dry storage sides 2:1 top trap dimensions 58X66' CY) NOTE: PLEASE SEE SHEET 6 FOR SEDIMENT TRAP #4 DETAIL N Q J AND CALCULATIONS o J Sediment Trap design #2 \ •♦♦.\ \ \\ \ \ ),-),-),-,),drainage -x- ),X- drainage area (acres) (< 3 ac) 2.92 trap volumes. OR CREST OF STONE WEIR L.pg1,g� J ♦♦ \ _X X x X X elevation (ft) area (so wlume(cf) volume(cy) CA0 N0 -1 ♦.\ \ �X_X y-X-X X X x X 894 756 0 0.0 ELM 0• ♦♦. 896 1716 2,407 89.2 DRY STORAGE - v VARRHLE• 898 2964 7,031 260.4 X X \ X ♦1 900 4500 14,442 534.9 ry X X ♦♦1 j 0 0 0 0.0 WET STORAGE 4, \ X X \ ` \ \ \L ♦. \\ �C (E ATED) [LtER CLOTH OINGNY \ X \ X X X ♦♦ A G ` SF wet storage: �E E �.,�-, EEC. E" Ems : R X X � \ X \ \ ♦ \ 6 V V \\ wet storage required (cy) (67"DA) 195.6 bottom of stone weir (ft) 897.24 X X \ \ \ x ` ♦♦ O? wet storage provided at this elevation (cy) 195.6 X V A V V Y Y I R slope of wet storage sides 3:1 X \ weir length (ft) (6xDA) 17.5 -A' M � \ � \\ x dry storage: bottom of trap elevation (ft) 894 ` dry storage required (cy) (67*DA) 195.6 bottom trap dimensions: 149C54' \ � crest of stone weir 899.0 to of dam elevation ft O 900 X ��\ X \ \S U P P O dry storage provided at this elevation (cy) 1956.top width of dam (ft) 6' X slope of dry storage sides 3-1 top trap dimensions 50MO' VX X Sediment Trap design #3 �� X XII X ♦A \ % NAa / ♦ \ � drainage area (acres) (< 3ac) 1.44 Q WtiCiwL X I C I V ♦ vv trap volumes: CREST OF STONE WEIR C . �E' 'g3XABLE• � X ' X � I \ ♦♦ `, � elevation (ft) area (sf) volume(ct) volume(cy) ��NO Lo• 890 1408 0 0.0 - X C ♦ % 892 2160 3,541 131.2 DRY STORAGE / X Q CCC♦♦♦ }� 894 3040 8,716 322.8 / X Q Y ♦ } i'V A 0 0 0 0.0 i m `+ � ♦ ` } \ 0 0 0 0.0 WET STORAGE , / X X 7' ^ .�i'l. �♦ \ \ \ (LxrAwTEo) [ATE, CLOTH oRlGwu �Y cRwnO ' \ \ wet storage: .BEE PLATE 3A3-I c 1E,ccaEcnTE" cuss x PF P / X X X X ♦♦ ♦ \ j \ \ \ \ \ wet storage required (cy) (67*DA) 96.5 X X ♦♦ \ X % \ \ bottom of stone weir (ft) 891.68 X \ \ wet storage provided at this elevation (cy) 96.5 X slope of wet storage sides 2:1 _♦ / weir length (ft) (6xDA) 86 \ ��hiMr��rr���r�rrr�r�r�rrr�r�r�rl�lrrrA�� o 1 j k SEDIMENT TRAP #2 DETAIL SCALE: 1" = 20' dry storage: bottom of trap elevation (ft) 890 dry storage required (cy) (67*13A) 96.5 bottom trap dimensions: 22'X64' crest of stone weir 893.0 top of dam elevation (ft) 894 dry storage provided at this elevation (cy) 89.4 top width of dam (ft) 6' slope of dry storage sides 2-1 top trap dimensions 38X80' J W N � Q U SEDIMENT TRAP#3 DETAIL `� +'�� �` LLj > Q 'SCALE: 1" = 20' ` t - �� ST3 +,� �X,x � J z J xj \ i�+� X \ ` X �� PC U) O Q d� L9 i­- \ - ------ -- ti > z XX \ 00 Z PROPOSED 1 ENCE ��.1�� X X X X X X �X X X U DCIO O AROUND SEDIMENT TRAP, / %6' WIDE - / .I / v �X X X W 0 TOP OF �� X �� +,+,, - __ ,X o ,+ -off z ' Ul DAM \LU +� - U Uj SF i1L 6� J o �9 w z aw -F\ ■■IM ■ - - Q WIRE C:) U N PPORT +�+, w �+ se \ \ F- + s. \ \ U +�+ v �� d � 4, V JOB NO. CIP 222207 \ � \ � SCALE X C I 111=20' I SHEET N0. �' 8 I PRE -REDEVELOPMENT STORMWATER MANAGEMENT PLAN, SCALE 1"=80' \ 1. L�� .6 LOT 6 Pre -Development Impervious Area Summary STUART TAYLOR SMACK D. B.5246-521 Subarea A, Water Quantity D.B.3415-704,707 PLAT Building/Structure 8,600 sf Sidewalks/Concrete 0 sf / Roads/Driveways 700 sf / 9,300 sf / Pre -Development Impervious Area Summary VRRM Limits delineated by ESC LOD, Water Quality Buildin /Structure 7650sf / STORMWATER MANAGEMENT NARRATIVE: I OVERVIEW THIS PROJECT PROVIDES STORMWATER MANAGEMENT (SWM) PRACTICES TO MITIGATE THE IMPACTS FROM THE PROPOSED IMPROVEMENTS. CHANNEL AND FLOOD PROTECTION COMPLIANCE ARE MET IN ACCORDANCE WITH MINIMUIM 9 VAC 25-870-66 REQUIREMENTS AND WATER QUALITY REQUIREMENTS HAVE BEEN SATISFIED. PLEASE SEE THE ATTACHED STORMWATER MANAGEMENT CALCULATIONS PACKET FOR ADDITIONAL DETAILS PERTAINING TO THIS PLAN'S COMPLIANCE. WATER QUALITY SUMMARY I x _ _ -Q-z. \ \ THE BOUNDARY FOR THE ESC LIMITS OF DISTURBANCE WAS USED AS THE BOUNDARY FOR THE VRRM WATER QUALITY - O o 0. \ > CALCULATIONS. PLEASE SEE SHEETS 5-7 FOR THIS BOUNDARY. THE STORMWATER QUALITY REQUIREMENTS FOR THIS / \ T.M.69-6C \ 1GIBSON, EVERETT E JR \ \ \ \ FIELDS \ \ --- 1.07ACRES 9r 0 g Sidewalks/Concrete 0 sf PLEASE SEE SHEETS 5-7 FOR T.M.69-19G Roads/Driveways 0 sf ESC BOUNDARY USED FOR / / REVISED LOT 6 VRRM QUALITY CALCULATIONS STOCKTON CREEK LLC 7,650 sf 2.63 ACRES D.6.5504, PG.614 WATERSHED SUMMARY FOR CHANNEL AND FLOOD PROTECTION Area, 1-year Flow, 2-year Flow, 10-year Flow, 100-year Flow, CN ac. CfS cfS cfS cfS DA A (Pre-ReDev) 61 15.73 3.94 8.94 27.72 73.56 DA A (Post-ReDev) 67 15.73 1.78 8.47 24.83 85.72 VDH MONUMENT FOUND - VDH MONUMENT FOUND 7 = AREA OUTSIDE OF DA W BUT WITHIN LIMI OF DISTURBANCE (5.59 AC) T. M.69-6M REVISED LOT 7 E.C.ACKERMAN TRUST D.B.4733-23 D.B.4733-20 & 21 PLAT D. B.4456-444 D.B.3530-234 PLAT 0 DEVELOPMENT ARE MET THROUGH THE BEST MANAGEMENT PRACTICE OF PURCHASING NUTRIENT CREDITS. A MINIMUM PHOSPHOROUS REMOVAL RATE OF 5.66 Ibs/yr IS REQUIRED. THE DEVELOPER WILL PURCHASE NUTRIENT CREDITS PRIOR TO �,� ` \ V. -� THE ISSUANCE OF A LAND DISTURBANCE PERMIT. ° PLEASE SEE THE ATTACHED CALCULATIONS PACKET AND THIS SHEET FOR ADDITIONAL DETAILS. WATER QUANTITY SUMMARY THE STORMWATER MANAGEMENT PLAN CONTAINS ONE PRIMARY DRAINAGE AREA, SUBAREA A. THIS DRAINAGE AREA ` ` �" LL LL\ et •�r \ \ BAR ST T.M.69-51B CAPTURES THE VAST MAJORITY OF THIS PLAN'S PROPOSED IMPERVIOUS AREAS. CRITICAL �� ��- ��" e �+- �` �,- �" yO ` v emu_` �"\\ �<0 SCRpT �J^ MCCLANAHAN, DENISE IN THE EXISTING CONDITION, THE MAJORITY OF THE DISTURBED AREA DRAINS TO ANON -PERENNIAL STREAM, WHICH HAS SLOPES FIELDS NO STREAM BUFFER, AND FLOWS SOUTH TOWARDS A CULVERT THAT RUNS UNDER CRITZER SHOP ROAD (ROUTE 151). AS w ti4 ,* �• -\ �V/J F 2.80 ACRES THE LIMITS OF THIS PROJECT ARE MUCH SMALLER THAN THE OVERALL DRAINAGE AREA OF THIS NON -PERENNIAL STREAM, _ e L LL �� �S THE BOUNDARY OF SUBAREA A IN THE EXISTING CONDITION IS DELINEATED BY THE FUTURE AREA THAT WILL BE CAPTURED 100 YEAR FEMA� .. �. �. ""� \ ,F F/y�F AND ROUTED THROUGH THE PROPOSED DETENTION BASIN. MOST OF THE LAND COVER IN THE EXISTING CONDITION IS FLOODPLAIN O r ���Q 'V %1 CLEARED FARMLAND, WITH A FEW EXISTING STRUCTURES AND WOODED AREAS SURROUNDING THE NON -PERENNIAL STREAM AND BETWEEN EXISTING CLEARED PLOTS OF FARMLAND. O *. ,� ,+ �- �- � � LL � � v THE PROPOSED DEVELOPMENT HAS ONE CONCENTRATED OUTFACE. ITS DRAINAGE AREA IS DELINEATED BY WHAT IS (����'9�`� CAPTURED BY THE PROPOSED ROADSIDE DITCHES, WHICH ARE CAPTURED BY THE PROPOSED UNDERGROUND STORM ,,,, \ `,�,, �'�-+-�"l •'�O / O SEWER SYSTEM AND OUTFALL INTO THE PROPOSED DETENTION BASIN. THIS DETENTION BASIN ATTENUATES THE PROPOSED \ ` \ DEVELOPMENT'S RUNOFF TO MEET MINIMUM CHANNEL AND FLOOD PROTECTION REQUIREMENTS SET FORTH IN 9 VAC . �,� \ ` ROUT D6OUTFLOWS ARE 6. THE OCOMP COMPN BASIN LIANT WITH MINIMUM COUNTY &LS BACK TO THE NSTATE NREQUIREMENTS. NIAL E411, HE RESULTANT DETENTION BASIN +,, ' \ ' *J/.«� IN SUMMARY, CHANNEL PROTECTION FOR SUBAREA A IS MET THROUGH 9VAC25-870-66 SECTION B.3.a (ENERGY BALANCE) a + AND FLOOD PROTECTION IS MET SECTIONS IS AC IEVED PRIMARILY SECTION GH b. (l0 O POST FLOW < O yr. PRE FLOW). �, � ,* �, ,+ COMPLIANCE WITH THESE SECTIONS IS ACHIEVED PRIMARILY THROUGH THE PROPOSED DETENTION BASIN. PLEASE SEE THE _ _ 924_ _-r , " ��. LL "" •'\ ATTACHED CALCULATIONS PACKET AND THIS SHEET FOR ADDITIONAL DETAILS. Aft 44 an OW 4W _9�6 \� ■ 110 ` WHERE AREAS OF IMPROVEMENTS OCCUR OUTSIDE OF DRAINAGE AREA'A' BUT WITHIN THE ESC LIMITS OF DISTURBANCE, / �- �- �",� THE PERVIOUS AND IMPERVIOUS AREAS SHALL BE RELEASED IN A SHEET FLOW MANNER THAT IS NOT CONCENTRATED. FOR ° INSTANCE, AS SHOWN ON SHEET 10, HOUSES ON LOTS 9, 10 AND 17 SHALL HAVE THEIR DOWNSPOUTS OUTLET TO SPLASH gzo- - _ - -920- BLOCKS TO PREVENT EROSION, SEDIMENTATION OR FLOODING OF DOWN GRADIENT PROPERTIES. PLEASE SEE SHEET 11\LL FOR SPLASH BLOCK DETAIL. THESE AREAS ARE THUS IN COMPLIANCE WITH 9VAC25-870-66 SECTION D. APPROXIM -9i6- / LOCATION STREAM -; .OVERHEAD �` UTILITY -9ti / � \ � �� -LINE O * k I ° VDH MONUMENT ��.' �� i� / �� ��� FOUND \ \ ?�.,+ J I _tY ` J� LLLL ALL\ ��. T.M.69-51H '?IIJ� ` GATES, JAMES P OR�yo_ \ ',"`''� �',��\� ''''''' ++\°KERRY D r �2.148 ACRES'.�''.'. .' ;'*o +*+,,�'\9"'+ +sue. + + + *',, p++„... .... ' CRITICAL , SLOPES, ......... \ I =OOP + \ +01 + + + +++,4. \.'.:+.+ , \a �+ \ i ° y �e \` '+ '' +* + + ' \\ \ ,�+++ , *+ +*{+\\\\ \\ TOcE=LoF.,Vx. fh;osx. \ '.'++1*+'+'4'+*++{0 0 , ')' 4'4'OF VLF w1 a ELEy f,�/.954OF CbNCCFL ,'''+'+'+' + + / r Q XZ . A .` `` CD .0L' 'j'''.+ + .1 v8'+'� r 1 .(27 .'Q \ v A �► / T.M.69-51 II► \`' \ \� \�� ♦ 6> G GRAVES HOME I '+' \ \ \� \ . , :.'+ .`'` \ \\ F 26 988 ACRES / V T. M.69-6G LOT 1 FRANK DONLEY & CARLA DONLEY / \ D. B.3380-82, / 85 & 86 PLAT VDH MONUMENT FOUND 119 0 CRITICAL SLOPES 910 goo 896 894 CRITICAL SLOPES +++ ++ LL �� \ \ A \ �� ' ' �o \\�\ .�,* + \ �� - / \ zoo FOOT WPO� d� 6. �9O 1 \ \ \ 4� I STREAM BUFFER S� + \\ �, sOe \ \ {.++ \ \\ \ \\\\ \ \ �� \+ '+' �+++ ++iCl�\ ^ �� \ ��\ SUBAREA A �a9 /i ♦ \ J 1 15.73 ac. A �,+ \ v \ V CN=61 \ V ,'�� A VvV�V��V\\�� VA��\\� Tc=0.22hrs. + Y 11 ` \ p �, 'jYV�I \ �'�+ +, J / /� � � \\ �\ \ I \ \�\\\\ ++ ++ + \\ \\\ - -aas� ��� / o\00-6 POE \ \ \ _ /++�i► % \ \ ,' \\ \ . - CRITICAL / L i \ d �� SLOPES \ \ -. , ., >�,� �, bbb\,', '4� \ mil` 1 \ ryry \ +qC ,°Y\+ \ 89 � \ �/ , \ \ �' '' - - - � .' �/ / 920- => \ \ \' + ++ \\\ \ \I .I+' '. ,# �. \�8 OVERHEAD POLE ggo -- -' \ \ / {, . -932�///I 1 \ r.*�*�+ + ,y+.\\\� \ I \\� +�' J s\ J UTILITY o \. + \ 1 DIVID DRAINAGE *+ I I �+ I' - - \� i + \ � O O / SUBJECT I / TYP. I . PROPERTY, �� / `'` '\ \ I+'+ i. \ , Al \ ---920 �� +�a.,o..... =1 V'vA vv11�`��' (\ \ _ / + + '.'.' �+ :-a ° 1 1v11 1 '. O _� �� 11111111r �1 \�';:..++ ' \ T.M.69-19D / // // oo / 11 III 1 * *' \ REVISED LOT 3 _ / / / A i ��� III .'. i 1 \ A I \ ♦I STOCKTON CREEK LLCII' 4.56ACRES 0♦ F D.B.5504, PG.614 90 � l\ vv V / l �''.'V \ \ LE + - IS 1 \ / ,\'* \ CRITICAL / `- \ _i SLOPES \�IAHIS_OF ANALYO�DA'P; /l++If % I�+ + \+y'\ . \\ \ \\ 80\ / �/ q t\ I '.', - i 1 + ,♦++ ! + + + + ++1++++++.++' VDH '.',+++'+'.'.'++ P + ++'++.'+'\ + .o MONUMENT Y+ ++++++C = FOUND VDH IS+'.'+ T.M.69-19A7 MONUMENT STg7E JUST, JOSEPH SCOTT & FOUND CRITZERSR�uTE 151 CASEY R JUST VARIABLE SHOP ROAD ----- 21 ACRES D B.413 31p9H R/W HWY.P.B.3-209 THRU 211) VDH --- MONUMENT FOUND CRITICAL SLOPES = VDH MONUMENT FOUND VDH MONUMENT Cnl INIn VDH MONUMENT FOUND VDH MONUMENT FOUND T. M.69-50 FREEMAN, ARTHUR H OR JOANN F 47.729 ACRES k7 SCOTT IR. CDLLINS7 Lie. No. 035791.n p 1/4/23 H z } 0 o O o w U U U J Cif W W W Elf Ce Z O w ¢ Q a m w w w O � ¢ m m m u U O Q Q Q ^� w O O O o z z O Z Z Z O in O O O Ln Ln Ln m W m m on J (n U1 (n N N N M A o O O O O ]__J ti M co CI7 N M � z z 1 W C:) W N z > � Z w J ' z > z Q H 0 L � w zn WU � � Y U) o w F- UlLU z U) cc w w U a Zwzo 01-1 LU O w co U 0 J LU w o 0 � c! w J< 0C:) 0 N U F_ w F- GRAPHIC SCALE JOB No. 80 ° 40 320 222207 ( IN FEET ) 1 inch = 80 ft. 1 "= 80' 9 POST —REDEVELOPMENT STORMWATER MANAGEMENT PLAN, SCALE 1"=80' Post -Development Impervious Area Summary LOT 6 T.M.69-6C STUART TAYLOR SMACK GIBBON, EE JR Subarea A, Water Quantity FIELDS Building 24,720 sf D.B.5246-521 _ - _ - - 1.07 ACRES Parking Areas/Roads 90,150 sf D.B.3415-704,707 PLAT _ Sidewalks & Concrete 0Sf 114,870sf // / -__ _ 1 01 Post -Development Impervious Area Summary / / ° e e �• VRRM Limits delineated by ESC LOD, Water Quality [Building 31,200sf--_dewalks&Concrete 0 sf PLEASE SEE SHEETS 5 7 FOR / \ �•ESC BOUNDARY USED FOR T.M.69-19G \ LL y` �4 ARST T.M.69 516 rking Areas/Road 93,085 sf VRRM QUALITY CALCULATIONS / / REVISED LOT 6 \ CRITICAL LL O \�<p SCRpT %S MCCLANAHAN, DENISE 124,285 sf STOCKTON CREEK LLC SLOPES T� Tj� 0 FIELDS 2.63 ACRES \ r ti \ �RNp F 2.80 ACRES = AREA OUTSIDE OF DAS 59 ACRES)HIN LIMITS OF o YEAR D.6.5504, PG.614 �''''' \ \loFLOODPLAIN� oe e LL LL LLLL � \\ \ ? '\Y� \ /kF R gpMFNT� DISTURB Aft \ ♦ �♦ S \ `� o W e \ \ / s ♦ A gam sr \ LOT 13 ♦♦ 5.055 ACRES AM&0111, \ _mac \ ��� LOT 12 9ae r- 2.41 ACRES V — — — o - - - \ / / LOT S \ ��� —920 2.98 ACRES V 4W# #* II y ` 9z0 C 2 �� - - _ APPP ROXIMATE LL 9 _ ION S EAM / / � � A �, \ /- — -♦� � w A� � � �� _ — � A/ �� OVERHEAD LOT 10 \ gi° ♦ ` \ \ \ - -910— \ \ I ♦♦ UTILITY LINE y \ 2.20 ACRES \ _ ♦ HOU ES OUTSIDE DA'A SHALL HAVE SPLASH, i- goy \ �_ `� \ �^'"` �� �� ���`� �� " VDH 1 Y � " °v BLOCKS AT THE OUTLETS OF THEIR �- V i a 6 A� V♦ MONUMENT / DOWNSPOUTS SEDIMENTATION FFLOOPREVENT EROSION, \ 'LOT 14 SEDIMENTATION OFFLOODINGDOWN� 8g 9 \ ,' / S, ° LL,�- �"'• FOUND \ / GRADIENT PROPERTIES. SEE SHEET ii FOR ))) / 4` \ SPLASH BLOCK DETAIL S\ � \,♦ � � / \ ♦, 3.95 �ACRESCRITICAL �- /,`, `, SLOPES y ♦,, T.M.69-51H / s�z 4 , ,� . 9a° 9�� \ \ 9\� \\ _ GATES, JAMES P OR / -ram. o° Tc=o.io hrs. `\,,` \ \ 6 OFOLFw/AELEV.=i' KERRY D 8 OF CONC. FLOW W ELEV. 8' , A ;'.' \ s s 2.148 ACRES \ ♦ o / ,�*`* �� LOT 1� 60 'CHANNEL FLOW IN PIPES i°ft/s / 9 9 C� 6 RITICAL \ � .. � , ,,, / %%%. O 73 AC \ ° , , T M 69 6M ^� 4= l* 1 '' �,� { ' ' . \'� 9,6 9� P�s \\\ �I, 9°6 / \ ES „ „ REVISED LOT 7 v � 90, � �`��, ,,. I ��`' .' ` �- ,' � \ °o , , , , E.C.ACKERMAN TRUST ���� ,',' / _� - . , „ 9° °�/ I \ 44j D.B.4733-23 �J �� ; ° / ��� ",`,' `,`,{�, ` _ —9 l I, r D.B.4733-20 & 21 PLAT O O ,,+, , , , , ,, \, do O v D.B.4456-444 Q off/ a / - - °° ,°° o �y } +� \ D.B.3530-234 PLAT C, boo /� \ ' ' �' = °� o� , ,` % \ / , f�+f+' , /, °, .'.' �8 \ UBAREA A \gym [ � � r�`� (S o � \ - - \ !� CN=67 ,' S � , ,,, 15 73 ac ; - ,' °,'+ � �� r Tc- .23 hrs. A LOT 15 i �Qi �s ''A •l► " , , a � 2.40 ACRES � 96,ly�OG� , -------- / ♦ \V� °1 / iooFOOT WPO ° ti V `C LOT 23 - °°', ` ��� 894_i STREAM BUFFER O ,� �Si'S��P��O 2.02 ACRES v `\:'�'�' _ °°° \ �I ° J p�A� ,. \ LOT/ 16 I � LL / v � + , „ �� _ i 2.25 ACES v /♦ CRITICAL PO�E SLOPES °� s� LOT 22 / �� v \ \� \ \ �� 690 ° \96 \ a°_ / ♦ ♦ 2.49 ACRES �s 1 =°\ °6 o IS � � POLE , / 90 — — — —O UTILITY D , i _ _ - �o Or LOT 3A - -93 — — DRAINAGE � % t' � � � \ � /� ���,��;. - �v ' `, A � LOT 17 LINES °" 2.07 ACRES _ - 93 / }' _ _ - ° DIVIDE \ 6.19 ACRES \ SUBJECT - l I� — �_ / ! (TYP.) \, 4.°° PROPERTY, - I �� \� / s o ,� , _ _ \ ~ ��� I _ zo / �1 \ S 7 Z \I'. \ ' 3 HOUSES OUTSIDE DA'A' SHALL HAVE SPLASH _4, LOT 0 i � � � � � � , �' � �� ��� �� - � � � BLOCKS AT THE OUTLETS OF THEIR ` ,' , DOWNSPOUTS TO PREVENT EROSION, __ ` , F ♦ SEDIMENTATION RTFLOODING DOWN \\\\OF R i / v O \ � � / \ o 3.47 /G ES 1 , , - ` ��'._._ GRADIENT PROPERTIES. SEE SHEETu FOR 1 � � � ` ,CRITICAL � � � V SPLASH BLOCK DETAIL SLOPES _ i T. M.69-19 - �/ v - �� �� V REVISED LOT 3 _ / / / \ \ \ - ,9°° 1 \ \ \ VDH STOCKTON CREEK LLCM AV�� �� m 4.56 ACRES"° �,, MONUMENT D.B.5504, PG.614 ��A� \ \� �v A00 LOT 18 \ LE I FOUND VDH MONUMENT — FOUND VDH MONUMENT FOUND 7 T. M.69-6G LOT 1 FRANK DONLEY CARLA DONLEY D. B.3380-82, 85 & 86 PLAT \ LOT 3B ��__ / / '� 2.05 ACRES — 2.49 ACRES _ _j /��� A xo / LOT 19 �� � �- �- 3.43 ACRES w / ��P�� y� Ij' /��\y ' � v ee - a p LE CRITICAL �V IS / V A �/ �� o — V \ i SLOPES �. � \�IMIIS_OF ANALY�O�D CRITICAL SLOPES \ / _ TM6950 - - - ---------- �j .10VDH FREEMAN, ARTHUR H OR -- MONUMENT JOANN F ' `{'• IS \\ FOUND 47.729ACRES VDH VDH T.M.69-19A7 MONUMENT STATE C CRITICAL MONUMENT JUST, JOSEPH SCOTT & FOUND R_� VDH GRAPHIC SCALE FOUND CRI TZERS _'LITEE 15j SLOPES C 21 ACRES VARIABLE WIDP ROAD ------- -_---- ---- - MONUMENT 80 0 30 80 160 D B.413-37gH /W - - - FOUND HWY. P. B. 3- 209 THRU 211 VDH --- - - MONUMENT VDH VDH ( IN FEET ) FOUND MONUMENT FOUND MONUMENT 1 inch = 80 It. k7 SCOTT IR. CDLLINS7 Lie. No. 035791 n p 1/4/23 z } 0 O O O w J W W W Z0 W ¢ Q a mwWw O a co co u v 0 a ^� w 0 o z 0 0 z o z z z o 0 0 Ln Ln 2 onm W m on J V) (n U7 N N N M W N N N N 0 0 0 0 L9 Cif ti M M CY) N T. M.69-51 co GRAVES HOME LLC z Z 26.988 ACRES Q W N � � W LU LU J Q \ _ > z Q W 0 L O � L zJa 0 U � � W 0 O H LU LU Ul U) cl. W i f_ U 6- Z W z o W W U L J LU o J Q 0 O d O 0 0 N U U w H o w d � JOB NO. also 222207 ■ SCALE 7 1 "=80' SHEET NO. 10 r DETENTION BASIN DETAIL, SCALE 1"=20' I J ' i I PROPOSED CLASS Al, EC-i RIPRAP OUTLET PROTECTION WITH GEOTEXTILE FABRIC TO BE KEYED INTO EX. GROUND 9" MIN. AT ENDS & ALONG PERIMETER. FABRIC TO OVERLAP A MIN OF 9" (L=32'-EXTEND TO RISER, Wi=6 FT, W2=15 FT, D-18"). 40' W DE GRASS LINED E ERGENCY SPILLWAY (CREST ELEV.=866.40') WITH SIDES SLOPED AT 4:2 U m � II I : � , I i 00 \ \ I I � 8' WIDE TOP OF DAM ELEVATION=! i \ i PROPOSED STR. Ai, A 36" HDPE STANDPIPE TOPPED WITH A STEEL WEIR PLATE PROVIDING A 24" OPENING AND TRASHRACK TO SERVE AS A RISER STRUCTURE. RISERTO HAVE A RIM ELEV.=86 .a, ' A 6" LOW -FLOW 4 7 ORIFICE INVERT ELEV.=86o.00'. RISER TOP & LOW -FLOW ORIFICE TO HAVE STATE APPROVED TRASHRACKS. SEE THIS PLAN FOR TRASHRACK DETAILS, OR EQUIVALENT. f, \ 862 { 1 6 606 / +- 866 1 / 8' 68 ROPOSED CLASS AI, EC-i RIPRAP OUTLET ROTECTION WITH GEOTEXTILE FABRIC TO BE • EYED INTO EX. GROUND 9" MIN. AT ENDS & ALONG PERIMETER. FABRIC TO OVERLAP A MIN. %w•OF 9" (L=i6', Wi=6 FT, W2=i8 FT, D-i8') OUTLET PROTECTION SIZING VARIABLE WIDTH SWM ACCESS AND MAINTENANCE EASEMENT_ J LD00 / \ L \ \ -864 � I\ I io PRIVATE ASPHALT ACCESS ROAD TO SWMi FACILITY WITH 3o' PRIVATE ACCESS EASEMENT - - - - CRITZER lROF TYPE LENGTH WIDTH DEPTH TO DENTENTION BASIN RISER VDOT CLASS iA 32' 6'-15' 1.5' OUTFALL OF DETENTION BASIN VDOT CLASS iA 16' 6'-18' 1.5, CLM• 875 100-YR PEAK WSE 866.98 PROPI SED STR. Aa, A 36"HDP 10-YR PEAK WSE- 866.38 STANI PI PE TOPPED WITH A ST EL 2-YR PEAK WSE- 364.63 WEIR LATE PROVIDING A a4" 1-YR PEAK WSEs 163.82 OPEN I G AND TRASHRACK TO SERVE ASA ISER STRUCTURE. RISER FO HAVE RIMELEV.=864.i/,A6" 870 LOW-1 LOW ORIFICE INVERT 870 LOW- LOW ORIPCETOHAVE S rATE VED-TRPLAN OR TRASHRACK DETAIL , OR EQUI LENT. -8 WIDE TOP OF DAM ELEVATION=868' WITH A4o' WIDE RIPRAP LINED EMERGENCY SPILLWAY (CREST ELEV. 866.40') 865 86S PROPOSED GRADE EXISTING GRADE L�7 INV: 859.00 86o PIPE Al TO LF 74.94 0r 2 860 III �4 CL, TO PREY NTFLOATATION THE RISER BAPROPOSED BASINS FLOOR SHALL BE SLOPED TO DRAIN TO WARD5 RISER (o.5% MIN.) WITH POSITIVE SLOPES THROUGHOUT V TESa TO OUTLET PRO ECTION 855 855 TO PREVENT FLOATATION THE RISER BASE SHALL BE FIRMLY EMBEDDED 6" INTO AN a8" TH CK REINFORCED CONCRET FOUNDATION PROFILE SCALES THAT IS 5' 5%AND BURIED i"=S'(VERTICAL) BELOWG OUND. a"=5a'(HORIZONTAQ 850 850 O 0 O 0 8 No ra 00 m m 00 00 0+00 0+50 1+00 1+50 DETENTION BASIN SECTION 8' WIDE TOP OF DAM ELEVATION=868' PROPOSED GRADE 8654" 865 PROPOS D40' WIDE VDOTCL. At IPRAPLINED EMERGI NCY SPILLWAY WI 4:N &I ILTER FABRIC UNDI RLAYMENT(STONE DE H=eB')SIDES SPILLWAY CREST ELEV. 866.40 86o 86o r9 o n m ID DD IN lOO t0 6 00 W ao W ao 0+00 0+50 HORIZONTAL GRAPHIC SCALE DETENTION BASIN SPILLWAY SECTION HORIZONTAL GRAPHIC SCALE 50 It 25 50 100 ( IN FEET ) 1 inch = 50 ft. VERTICAL GRAPHIC SCALE 5 D 2.5 5 10 ( IN FEET ) 1 inch = 5 ft. 20 ( IN FEET ) 1 inch = 20 ft. GENERAL SWM NOTES: i. STATE APPROVED TRASH RACKS SHALL BE INSTALLED ON ALL ORIFICE OPENINGS. SEE THIS SHEET, OR EQUIVALENT, FOR DETAILS. 2. CONCRETE FOUNDATIONS SHALL BE INSTALLED ON ALL RISER STRUCTURES MEETING MINIMUM VESCH 3.24 SPECIFICATIONS, INCLUSIVE OF STR. 6 SINCE IT IS LOCATED WITHIN THE DRY BASIN AND IS SUBJECT TO BUOYANCY. 3. CONTRACTOR SHALL HIRE A THIRD PARTY GEOTECHNICAL ENGINEER TO ENSURE THE EMBANKMENTS ARE STRUCTURALLY SOUND. ALL EXISTING AND PROPOSED FILL MATERIAL AND PROPOSED CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS, AND PRESENT DURING THE CORE SAMPLING. 4. THE DOWNSTREAM EMBANKMENT SIDE SLOPES OF ALL PERMANENT FACILITIES, INCLUSIVE OF THE DRY BASIN, SHALL HAVE A MAXIMUM 3:1 SLOPE. 5. CONTRACTOR SHALL EXCAVATE SEDIMENT LADEN MATERIAL IN ANY ESC SEDIMENT TRAPPING DEVICES AT THE TIME OF THE FACILITIES' CONVERSIONS TO PERMANENT SWM FACILITIES, IF APPLICABLE. AT SUCH TIME THE CONTRACTOR SHALL REGRADE THE SEDIMENT TRAPPING DEVICES TO THE PROPOSED GRADES SHOWN ON THE SWM SHEETS. THE CONTRACTOR SHALL MINIMIZE SOIL COMPACTION DURING THE CONVERSIONS. General Construction notes for Stormwater Management Plans i. All dams and constructed fill to be within 95%of maximum dry density and 2%of optimum moisture content. All fill material to be approved by a geotechnical engineer. A geotechnical engineer is to be present during construction of dams. 2. Pipe and riserjoints are to be watertight within stormwater management facilities. 3. For temporary sedimenttraps or basins which are to be converted to permanent stormwater management facilities; conversion is not to take place until the site is stabilized, and permission has been obtained from the County erosion control inspector. ALL SLOPES GREATER THAN 3:1 SHALL BE PLANTED WITH NON -EROSIVE LONG GRASSES OR OTHER TYPES OF NON -EROSIVE PLANTINGS. GRASS LINED DRY RETENTION BASIN CONSTRUCTION NOTES: FACILITY PLANTING SPECIFICATIONS: 1. THE DRY BASIN SHALL HAVE TURF GROUND COVER, SUCH AS GRASS OR SOME OTHER FORM OF A VEGETATIVE GROUNDCOVER. LANDSCAPING BEYOND THIS IS OPTIONAL AND IS NOT REQUIRED. 2. THE PROPOSED INTERIOR SIDE SLOPES OF THE DRY BASIN SHALL BE 3:1 WITH THE TOP OF THE EMBANKMENT SERVING AS A SAFETY BENCH. THE PROPOSED FLOOR SLOPES SHALL BE GRADED TO PROVIDE POSITIVE DRAINAGE AT ALL TIMES TO THE RISER STRUCTURE. 3. WOODY VEGETATION SHALL NOT BE PLANTED OR ALLOWED TO GROW WITHIN 15 FEET OF THE TOE OF THE EMBANKMENT NOR WITHIN 25 FEET OF THE PRINCIPAL SPILLWAY STRUCTURE. CONTRACTOR REQUIREMENTS: 1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LAYOUT OF ALL WORK COVERED UNDER THESE PLANS. 2. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS IN THE FIELD AND NOTIFY THE DESIGNER OF ANY VARIANCE FROM THE PLAN. 3. THE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE LOCATION OF ANY ONSITE UTILITIES (CALL MISS UTILITY AT 1-800-552-7001 BEFORE ANY EXCAVATION). 4. REFER TO THE APPROVED FINAL SITE PLANS FOR ANY DETAILED SITE INFORMATION. 5. ALL WORK SHALL BE COORDINATED WITH OTHER PARTIES. 6. THE CONTRACTOR IS RESPONSIBLE FOR REMOVAL AND DISPOSAL OF TRASH AND DEBRIS WITHIN THE LIMITS OF THE DRY BASIN ON A DAILY BASIS. 7. THE CONTRACTOR WILL NOT BE RESPONSIBLE FOR DAMAGE CAUSED BY VANDALISM, FIRE, OR OTHER ACTIVITIES BEYOND THE CONTRACTOR's CONTROL. FACILITY CONSTRUCTION 1. THE DRY BASIN MAY SERVE AS A SEDIMENT TRAPPING DEVICE DURING PROJECT CONSTRUCTION. IF THIS IS DONE THE VOLUME SHALL BE BASED ON THE MORE STRINGENT SIZING RULE EROSION AND SEDIMENT CONTROL REQUIREMENTS VS. STORMWATER TREATMENT REQUIREMENTS). INSTALLATION OF ( Q THE PERMANENT RISER AND BARREL SHALL BE INITIATED DURING THE CONSTRUCTION PHASE AND DESIGN ELEVATIONS SHALL BE SET WITH FINAL CLEANOUT OF THE SEDIMENT BASIN AND CONVERSION TO THE POST -CONSTRUCTION DRY BASIN IN MIND. APPROPRIATE PROCEDURES SHALL BE IMPLEMENTED TO PREVENT DISCHARGE OF TURBULENT WATERS WHEN THE BASIN IS BEING CONVERTED TO A DRY BASIN. 2. THE DRY BASIN SHALL ONLY BE CONSTRUCTED AFTER THE CONTRIBUTING DRAINAGE AREA TO THE FACILITY IS COMPLETELY STABILIZED. IF THE PROPOSED LOCATION OF THE DRY BASIN WILL BE USED AS A SEDIMENTTRAP OR BASIN DURING THE CONSTRUCTION PHASE, THEN THE FACILITY WILL BE DEWATERED, DREDGED AND RE -GRADED TO DESIGN DIMENSIONS AFTER THE ORIGINAL SITE CONSTRUCTION IS COMPLETE. MODIFICATIONS SHALL BE MADE TO THE RISER ORIFICES AND BARRELS AS REQUIRED SO THAT THEY ARE CONSISTENT WITH THE FINAL CONSTRUCTION SPECIFICATIONS. 3. THE CONTRACTOR SHALL ASSEMBLE CONSTRUCTION MATERIALS ON -SITE MAKING SURE THEY MEET DESIGN SPECIFICATIONS AND ARE PREPARED AT STAGING AREAS WHEN POSSIBLE. 4. THE CONTRACTOR SHALLCLEARAND STRIPTHE PROJECTAREA IF REQUIREDTOTHE DESIRED SUB -GRADE. 5. INSTALL E&S CONTROLS PRIORTO CONSTRUCTION OF THE DRY BASIN INCLUDING TEMPORARY DE -WATERING DEVICES AND STORMWATER DIVERSION PRACTICES. ALL AREAS SURROUNDING THE DRY BASIN THAT ARE GRADED OR DENUDED DURING CONSTRUCTION SHALL BE PLANTED WITH TURF GRASS, NATIVE PLANTINGS OR OTHER APPROVED METHODS OF SOIL STABILIZATION. 6. CONTRACTOR SHALL EXCAVATE THE CORE TRENCH AND INSTALL THE SPILLWAY PIPE DURING THE ESC PHASE. 7. CONTRACTOR SHALLALSO INSTALLTHE RISER, OUTFLOW STRUCTURE AND/OR THE BARREL(s) WITH PERMANENT COLLARS DURING THE ESC PHASE. CONTRACTOR SHALL ENSURE THE TOP INVERT OF THE OVERFLOW WEIR IS CONSTRUCTED LEVEL AT THE DESIGN ELEVATION. 8. THE CONTRACTOR SHALL CONSTRUCT THE EMBANKMENT AND ANY INTERNAL BERMS IN 8-TO 12-INCH LIFTS, COMPACTION SHALL BE COMPLETED IN LIFTS WITH APPROPRIATE EQUIPMENT. THE CONTRACTOR SHALLALSO ADHERE TO THE CLAY LINER SPECIFICATIONS OUTLINED IN TABLE 14.4 BELOW: Table 14.4. Clay Liner Spectillcarions Property Test Method unit Specificalfion Permeability ASTM D-2434 cnVsec 1 x 1 P21asbclfy Index. of Clay ASTM D-423/424 % Not less than 15 Liquid L1mit of Clay ASTM D-nlC) % Not less than 30 Clay Particles Passing I ASTM D422 % Not less than 30 Clay Compaction ASTM D2216 % Mir of stantlard noctor den " Source: Virginia Stormwater Management Handbook (1%9) 9. UPON COMPLETION OF THE EMBANKMENT GRADING, THE CONTRACTOR SHALL EXCAVATE/GRADE UNTIL THE APPROPRIATE ELEVATION AND DESIRED CONTOURS ARE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES OF THE DRY BASIN. 10. CONTRACTOR SHALL THEN CONSTRUCTTHE EMERGENCY SPILLWAY IN CUT OR STRUCTURALLY STABILIZED SOILS. 11. THE CONTRACTOR SHALL THEN FINISH CONSTRUCTION OF ALL OUTLET STRUCTURES, INCLUDING DOWNSTREAM RIP -RAP APRON PROTECTION IF APPLICABLE. 12. THE CONTRACTOR SHALL NEXT STABILIZE EXPOSED SOILS BY HYDROSEEDING OR SEEDING OVER STRAW. FACILITY MAINTENANCE: MAINTENANCE OF THE DRY BASIN IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE FACILITY. DURING THESE INSPECTIONS THE FOLLOWING TASKS SHALL BE PERFORMED BYTHE CONTRACTOR IN THE FIRST YEAR FOLLOWING INSTALLATION, AND THE OWNER THEREAFTER: 1. MEASURE SEDIMENT ACCUMULATION LEVELS IN THE DRY BASIN. 2. MONITOR THE GROWTH OF THE GROUNDCOVER. 3. INSPECT THE CONDITION OF STORMWATER INLETS TO THE DRY BASIN FOR MATERIAL DAMAGE EROSION OR UNDERCUTTING. 4. INSPECT THE BANKS OF UPSTREAM AND DOWNSTREAM CHANNELS FOR EVIDENCE OF SLOUGHING, ANIMAL BURROWS, BOGGY AREAS, WOODY GROWTH, OR GULLY EROSION THAT MAY UNDERMINE EMBANKMENT INTEGRITY. 5. INSPECT THE DRY BASIN's OUTFALL CHANNEL FOR EROSION, UNDERCUTTING, RIP -RAP DISPLACEMENT, WOODY GROWTH, etc. B. INSPECT CONDITION OF PRINCIPAL SPILLWAY AND RISER FOR EVIDENCE OF SPALLING, JOINT FAILURE, LEAKAGE, CORROSION OR OTHER FAILURES. 7. INSPECT CONDITION OF ALL TRASH RACKS, REVERSE SLOPED PIPES OR FLASHBOARD RISERS AS APPLICABLE FOR EVIDENCE OF CLOGGING, LEAKAGE, DEBRIS ACCUMULATION OR OTHER FAILURES. 8. INSPECT MAINTENANCE ACCESS TO ENSURE IT IS FREE OF WOODY VEGETATION, AND CHECK TO SEE WHETHER VALVES, MANHOLES AND LOCKS CAN BE OPENED AND OPERATED AS APPLICABLE. 9. INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE DRY BASIN FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR SLUMPING. 10. OWNER OR CONTRACTOR SHALL MAKE NEEDED REPAIRS IMMEDIATELY. FACILITY INSPECTION: MULTIPLE INSPECTIONS ARE CRITICALTO ENSURE THE DRY BASIN IS PROPERLY CONSTRUCTED. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY THE CONTRACTOR, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER AND INSPECTOR PRIOR TO INSTALLATION. MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE CONTRACTOR WITH THE ENGINEER AND INSPECTOR DURING THE FOLLOWING STAGES OF THE DRY BASIN's CONSTRUCTION PROCESS: 1. PRE -CONSTRUCTION MEETING 2. INITIAL SITE PREPARATION INCLUDING INSTALLATION OF PROJECT E&S CONTROLS 3. EXCAVATION/GRADING (e.g., INTERIM/FINAL ELEVATIONS) 4. INSTALLATION OF THE EMBANKMENT, THE RISER/PRIMARY SPILLWAY, AND THE OUTLET STRUCTURE(s). 4. DRY BASIN INSTALLATION (e.g., INTERIM AND FINAL ELEVATIONS) 5. PLANTING PHASE FOR TURF GROUNDCOVER 6. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) StormRax- ROUND SERIES TRASH RACK (OR EQUIVALENT) CONCRETE MANHOLE STANDARD 601NCH RACK SHOWN DIMENSIONS IN INCHES wererm,crurw n.vnceN MNIRMRYIrJw.K .I 1 PLAN SIDE VIEW ISOMETRIC Stormllaxne Round Series for Concrete Manhole Fart No. Dim OMB Mac MIn ID min OD RS•24 17Y 14% 28 . 24 30 ASd6 211', 14K 40,f 36 43 w 27 Y, L 54 . 48 S7 PS40 27K 1814 66IS 1 60 70 Plastic Solutions, Inc- GNT(rER PO Buie 4386. Wlnchretnr, VA II600 239 Muffles Rd, AWrlwre,, VA iieOT :677) 877-5727 Phone PAO.EQ: ;S4017ZZ-2219M hIW=//wnw.plullc-soluaon.mm CONCRETE STRUCTURE DIMENSON• INSIDE STRUCTURE DIMENSION OUTSIDE STRUCTURE DIMENSION AVAILABLE OP ION• GROSS BRACING FOR ovERwwG HDPE ANTI-vORiEIL PLATE DAIS DMWNBY. AW01r. DETAIL • nLLvF=J nl. � la=•=v�r • �� 1_I N• nm l:n:en (D®® ®0jo Isornet rlc 4 IIIR'P I I I:I:ry u. 0000 L4:.. �.i ,•r ...,eyr � ` • enaem eLLL v Ilvnel fete 7 enpr .t.nnu arnl 'non, ,.an holes and 1/4- plate Soct1011 PlaeUc mw:uractured by 6olultnn• Inr err squint dta hnle o O o 00 0 0 •mA1e B11P EleVallion v I!Icc PLASTIC DEBRIS CAGE P IN Rn. 4 `F' OLUTIONS „ ,n.,,,,a„ Q INC.. -a%%-nve) pinac-ml x:um SECTION A-9: 'n PICAL GRAPffiC.AI. DETAELS Homogeneous fill urdn �Cut off trench-C below suitable, material Sal or mck L - - - - - - --J TYPICAL HOMOGENEOUS EMBANKMENT Transition fill ock or gravel -Ne outlet Coa fib� Perforated collector arwFrfeid slos 4?kt oundotion draindrain FOUNDATION DRAIN BLANKET DRAIN / 5un4 9o•d ar ma •an un0. Rock a grovel Rah Ira drain �Tronsiu0n miff Traraitian filter CHIMNEY DRAIN TOE DRAIN Figure A -la. Honmgeneons En1ba11kn1ents "I/Seepage Controls EMBANKMENT NOTES: AFTER AN INVESTIGATION OF THE SITE'S SOILS, SITE VISITS, AN ANALYSIS OF THE SURVEYED TOPOGRAPHY AND AN EXAMINATION OF VA DEQ APPENDIX A: EARTHEN EMBANKMENT, THE APPLICANT HAS PROVIDED A COMPREHENSIVE EMBANKMENT DESIGN THAT DOES NOT NEED A GEOTECHNICAL STUDY AT THIS TIME. SUCH 15 THE CASE DUE TO THE PRECAUTIONARY EMBANKMENT DESIGNS PROPOSED. ASUMMARYOFTHE EMBANKMENT DESIGN REQUIREMENTS ARE LISTED BELOW, MANDATING THE CONTRACTOR MEET THESE REQUIREMENTS AT A MINIMUM. THE EMBANKMENTS SHALL HAVE A COMPACTED CLAY CORE WITH A CUTOFF TRENCH & BE IN ACCORDANCE WITH THE DETAILS SHOWN IN THIS PLAN. BERMS AND SPILLWAYS SHALL BE STABILIZED WITH EC-3 MATTING & RIPRAP AND THE REMAINING DISTURBED SLOPES SHALL BE STABILIZED WITH EC-2 MATTING. ALL BERM FILL MATERIAL SHALL CONSIST OF ML, CL, SC OR GC SOILS & BE FREE OF WOOD, ROOTS, ROCKS OR ANY OTHER NON COMPACTING SOIL COMPACTED FILL SHALL BE PROCTOR MAXIMUM DRY DENSITY ASTM D698 AND HAVE A MINIMUM OF 95%OF MAXIMUM DRY DENSITY AND 2%OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL AND CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS. o u COUNTY OF ALBEMARLE • Department of Community Development + hmaMr Construction Record Drawings (As -built) for VSMP The following is a list of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings. A. A signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video Pipe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with geo-coordinates of all facilities. 4. Verified Drainage Area maps for the drainage area treated and for drainage to the facilities. g P g g 5. Current physical and topographic survey for all earthen structures. Ponds should include a survey of the pond bottom. Surveys should verify pond volumes are per design. Corrections may be required for alterations from the design. 6. Plants, location and type. 7. Plans and profiles for all culverts, Pipes, Risers, Weirs and Drainage Structures - Display the installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invert elevations compared to design. 8. Computations: For significant deviations from design, provide sealed computations verifying that the as -built condition is equivalent or better than design. 9. Ditch Lines - Display the constructed location of all ditch lines and channels, including typical sections and linings. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. 11. Guardrail, fences or other safety provisions - Display the constructed location of all safety provisions; fences, guardrail, including the type, length and applied end treatments, compared to design. 12. Material layers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection reports, boring or test pit reports and materials certifications. Biofilter media must be an approved state mix. 13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in dams. 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. SCOTT/R. CDLLINSZ Lie. No. 035791 .1, 1/4/23 Z Z Z Z O v O O 0 //\ U U U ��/ J J J Z Q W 0 � w a a a d m co w W O co Do On U 0 Q Q Q 0 O Z O F- Z O Z Z 0 (n O O 0 U7 w coco co .. ca W � co co m _i (n (!) N tie Z of Z N N N rr1 w � toO\ a CD o o 0 W CIA CD W N Q > Zw_ J J >�/� W L9 W O Q U Uj H �n Zw IY i (n AN 12L CL z O H4 Iaaaaal Iaaaaal CO V/ LU LU 00-00 O Y U O J Hi W 0 LU G LU Q Q 1..1� LU I- 0 V / P222207 B NO. CALE "=80T 11 OUTLET PROTECTION SIZING V A TYPE LENGTH WIDTH DEPTH RIPRAP CHANNEL OUTFALL OF36"CULVERT VDOT CLASS II 30' UP TO 874' CONTOUR 42" V A \ T.M.69-6L � � � V A v __ ------ � LOT 6 v \ AA T.M.69-6C y ��' \ UART TAYLOR SMACK \ V GIBSON, EVERETT E JR D.B.5246 521 -�-- �, \ FIELDS / , A \ \ D.6.3415-704,707 PLAT - -- \ 1.07 ACRES / NOTE: ALL HOUSES SHALL HAVE SPLASH BLOCKS AT THE OUTLETS OF- \ \\ THEIR DOWNSPOUTS TO PREVENT EROSION, SEDIMENTATION OR- \\\\ \ \ FLOODING OF DOWN GRADIENT PROPERTIES. PLEASE SEE SHEET ii FOR -� \ A DETAIL OF THE SPLASH BLOCK, OR EQUIVALENT. - \ / K \\ \ \ \\ \\ \ / \ / T.M.69-19G W ARFS \\ \ \ \\\ / \ \\ \ \ \ \ - --REVISED LOT 6 ice\' \ ;., S R Jill \ CRITICAL \ \ '<-_ - - - - - STOCKTON CREEK LLC \ \ \ \ \ SLOPES 65 \ \2.63 ACRES 4 50 P \�ioo YEAR FEEMA FLOODPLAIN / \i `s-g.o LOT3 /i' 5.05 ACRES v c "b a Project Sbdcton Creek Plan Sheet No. Designer LW Sheet 1 of 2 CUIVett Rev. Dab Date 8/15/22 STATION: AHW Controls HYDROLOGICAL DATA: 100 yr. Flood plain elev. Design AHWdepin elev. Structures elev. Bee. TWelev. Culvert#1 (STR-12 - STR-11): DA=35.91 ac., CN=59, Tc=24.2 min., 2-year Q=11.50 - = J 10-year Q=44.09 cis,100-year Q=115.56 cis Shoulder = elev. 893.61 = CL elev. 893.83 DISCHARGES USED RISKASSESSMENT ACT Skew ° Cover rt Q 2 = 11.5 CFS DebursAvailable Length Q 10 = 44.09 CFS Overtopping Stage Q 100 = 115.56 CFS Flood Plain Management Inv. El. 873.92 So= 1.88% Inv. EL 869.31 Q = CFS Criteria and Significant Impact Ong. Gr. Elev. L= 245.75 ON. Gr. Elev. Q = CFS HEADWATER COMPUTATIONS CONT OUTLET End INLET CONT. OUTLET CONTROL CULVERT TYPE & SIZE Q QB HW VELOCITY Treat. COMMENTS HWID I HW Ke do (dc+D)/2 he H LSo I HW C.M. Sirl ELEV. Proposed 36" RCP Culvert(2 yr) 11.5 11.5 0.49 1,5 0.5 1.1 2.04 0.71 0.5 4.6 -3.40 1.5 8.85 EW-1 VDOTSTD. EW-1 Class II OLdel Pmbclon Proposed 36" RCP Culvert(10 yr) 44.1 44.1 1.18 3.5 0.5 2.2 2.58 3.64 0.5 4.6 -0.47 3.5 12.82 Proposed 36" RCPCulvert(100yr) 115.6 115.6 4.28 12.9 0.5 3.0 3.00 16.06 0.5 4.6 11.95 12.9 16.35 Design Flood Exceed. Prob. Elev. Overby Flood Exceed. Prob. Elev. SUMMARY& RECOMMENDATIONS: Base Flood 1% Exceed. Prot. Elev. -_ _-`\/929 LOT12 - r �/ k �.•\ , 2 41 ACRES - / c u WATERSHED SUMMARY FOR PROPOSED 36 RCP CULVERT v --- / \ \ \920 -- - 9zo \\�..�\\\ `_\ f` �\ \ \-,.2�'\ DOWNSPOUTANDSPLASH/i-�' / ;o.\�' LL. :\ \. 920 _ \ I \ \ ` BLOCKRUNOSHALLDIRECTROOF - - - " - - / � / ' / � 8 ACRES (\ �� i �STOCKTON CREEK LANE -\ � APPROXIMATE _ _ 11dCATION STEAM A`\��\-- Area, 2-year Flow, 10-year Flow, 100-year Flow, CN ac. cfs cfs cfs DA to Culvert Crossing Stockton 59 35.91 11.50 44.09 115.56 Creek Lane l A\ - / OVERHEADa� / v A LOT10 -v�93° v �3 9y0g�" GUTILITY -� /"IIa 20ACRES LINE _ a �, VDH V 1 / V A V 1 I A �' - v y /v v ��v vv \ Vvv 896 _ Vv \ \ "�� v v - Q \ MONUMENT v��- LOT 14 3.95 ACRES P s'� y 89z - ��y �v yv v� s� v v v y _- / °a �' / LE r9 FDU N D _ v CRITICAL A v ?o v v v o SLOPES V�I \ v�� v v. vv v/ b DOWNSPOUT AND SPLASH T. M.69-51H I BLOCK SHALL DIRECT ROOF � � / O GATES, JAMES P OR UNOFFTOWARDSy930 SOUTH SIDEOFHOUSE O KERRY D )2.148AC2ES LO11 RITICAL _ ^� v / v s vv v 2.73 ACRES/ T.M.69-6M �� Zo v v !-/ /k/ // v \ �� °� o \ iq SLOPE - REVISED LOT 7 w q> c y9, E.C.ACKERMAN TRUST ° ��'y - m - v �\ vy ° vv---F D.B.4733-23 p ` �.6.4733 20 & 21 PLAT O O 1 � v � � � DOWNSPOUTAND SPLASH � V / D.6.4456 444 O Q ��,' \ -/ ; �� - a . �Cio \ \ / / \ BLOCK SHALL DIRECT ROOF \ / / / ` p` \r \\ \ \ \ \ \ z D.B.3530-234 PLAT CD h o ; : 6 - - v v °° V - - v O kv v 938 _- - -T \ \ / STSTOCOKTONOC CREEK LANE \ / �' p � � � � V , c i A - / 940 - c v / / a zsMp ,pie RF , 880 , \ `� \ \ \ � a� ' v�, - - 6 yo cN wK q/vE / \ \ -\ \� / l LOT 15 j \G \ / \ \ / STREAM BUFFER oo r \ \ O is • T.M.69 51 LOT 23� \ 6 0 0 - \ / 2.40 ACRES 9 RAVES HOME LL A 1 V / / 3 \ VA� A i A. .�� �� G ACRES \ / 9 \ / o \ l O ° \ m �i a v V / / o / A•. .�� c� 90� 26.988 ACRES 2.02AC e \ \�BSaa° 9$ea° /m \ \ °, x\ \ \ 3\ / p \\ ho \\ �i1yOjT(\ \ " LL \ LOT �v v // °/�r� i - \ r T. M.69-6G / / l I I i /tl a \\ BLOOCK SHOALL D RUT ECT ROOF e SPLASH 2.25 ACRES LOT 1 / / I 1 \ \ RUNOFFTOWARDS '�. -- , 11 ¢� ee \ 'DS qZ C` / O- / FRANK OT I SL / I �' \ STOCKTON CREEK LANE / T _ 20 PUBLIC DR E 'LL - \ 09 CARLA DONLEY ��o ��FTtit V E SIv1T // V CRITIC /� o, / DRAINAGE e � � \ D.6.3380-82, 8 / \\ \ \ \ \ 940\ \ / / / \ / 9O ` O r q '% / \ 85 & 86 PLAT I A LOT 22 / X /\- 2.49 ACRES /J as g� 7 \ / /y . j � X. PROPOSED 5o' VDOT RIGHT-OF-WAY, � \l IS I v I \//\// / //l /�l /�/� l// / /Il / / /l /// /I /l // // // /// / / iI / / i II / i I i;/ ,/, /, '. '♦ ,./ ` /1,r/` / `. % / J _/ - _j. _ /- _ - _ \ -__-------_ - \ \>) ( OVERHEAD PROPOSED So'VDOT RIGH-FAUTILITY-93z LOT17 LINES LOT 2.07 ACRES SUBJEC36.19ACRES, - DOWNS4 L.19 PROPERTY, /BLOCK SHALL DIRECT ROOF TYPN STOCKTON CREEK LANE LOT 21 e° i 920 3.10 ACRES 20PRIVATE E ESMT 20 LOT 20 \ \ 1/ \ c3.47 -_ 90 � 3.47ACRES 36 RCPcuLv \ .iX 90,-` �/\\ .CRITICAL VDH O / / 1 /T - / / / / y / SEE DESIGN THIS SHEET I / / MONUMENT j �/ / / L- --? ���' �' ` SLOPES FOUND -� L' T.M.6919v g°° �y a°� / A V 11 �� VDH / 1 STOCKTON CREEK LLC �// REVISED LOT 3 // - f \ / 4.56ACRE5 \///// - -T \ O > ;,\ \ ;MONUMENT _ ,' // / i / �` /� y / DOWNSPOUTAND SPLASH �" .� P LE o �`� V Ate/ FOUND _ D.B.5504 PG.614 �v / -� - // / �V / BLOCK SHALL DIRECT ROOF \ m i ' V - - _ -fi i // �� RUNOFF TOWARDS SOUTH V AA / LOT 1H LOT 3B \ \ / / / \ _ _ _ _,�--i J ''// / L' _ r' \ \ \ \ \ TAJ EAST SIDES OF OWARDS DETENTION BASINOUSE 20' PUBLIC DRAINAGE ESMT / \ 2.05 ACRES I // \ \�11`-890 69 2.49 ACRES v v / /,� / / / v v °A - - - / _ I' A\ �/ V BLOCK SHOALED DIRECT OOF��� i/ //////�/ _ _ _ - _ / \ / LOT 19 \ VDH MONUMENT / / ' �' /// ---- _ / _ \ \\ \ - // / // / / I/ I t 3.43ACRES / \\ SIDE OF HOUSE ' J I P� ` '\ / \ RUNOFF TOWARDS SOUTH FOUND /LEr° RITI AL IS - -_-- --__-_ � A �A \ 880 - CRITICAL SLOPES - - - / - �� - - � 20' 'PUBLIC DRAINAGE ESMT I I _ _ ��II sse $06 _�as IS\ -,� / ON H FREEMAN, ARTHUR \ R\ \ o % MONUMENT 10ANN F \ \ \ _ a j j FOUND 47.729 ACRES ` T.M.69-19A7 - - - MONUMENT � � � � ;MONIlME1U \ \ & - - - y ATE --» _ _ _ \ 86"t JUST, JOSEPH SCOTT -_- -_---FOUND RIT aV TE - - - _ _ __= ; = - - - - - - - \ - / I CASEY-RJUST - \ \ V' ABL R HOP 15� `s'oPA` \ - VDH _ GRAPHIC SCALE 21 ACRES - - - (� '6.4 E WiDTill R/hy - - - - - \ _ - \ MONUMENT OUND80 0 40 80 1so 320 y p 73-379 R B.3-209 TH VDF - - \ HW 21 \ MONUMENT" \ \\ __ -- - - �_ - - _ \ \ VDH - \ \ ---- vOUND - - - -VDH IN FEET ) MOLINGENT ONUM MONUMENT- 1inch=80 ft. / \ Fictill k7 SCOTT 7R. CDLLINS7 Lie. No. 035791 n A 1/4/23 H z } 0 o W U U U J W W W o Z W ¢ a a m co W w O � ¢ co m m u U 0 a ^� w O 0 O o z z o z z z o 0 0 > MM M M M / m W m m on J (A (n U) N N N M o o 0 0 0 0 ]__J > U) L9 L1J O Z2 J _ W LU I n D C. ZLU w W JLU tY J01-1 0 01 N u U W I z z O JFill Fill > (D Fill Mo W a�/ D I L J J W Q cl� U O L z O 2 JOB NO. 222207 SCALE 1 rr=80' SHEET NO. 12 If STORM SEWER io-YEAR CAPACITY CALCULATIONS TH 0� Design Storm Year= 10 DRIVEWAY CULVERT io-YEAR CAPACITY CALCULATIONS O Design Storm Year 10 0SCOTT R. LINSZ U Lic. No. 035791 tl ° 1/4/23 10NAL w z CD z w z O U 0 c y 0 c z Z Z Z OU O U O U O a v/ J J U J x z Q N Z O f w Q ¢ Q O d m Q w w w 3 U O Q Q Q QZ OR 0 Z Z Z y OZ O O O ° > � N in W w m Cn IY] m U J U7 (n N ce F- O Z of of 2 y c ° '--' Z N rn ° `o HYDRAULIC GRADE LINE (LD 347) CALCULATIONS Design Year: 10 Project: Stockton Creek Subdivision Job 4: 222207 Prepared by: LMW, PE 6 RNCTIONLOSS C O O N N N M w N N N N N Q N N N O E l l a CD O CD O CD � c �' > - z m O o 3 i � M N N ° a M a � z T C 1 ° < WO J N W" Q o (n _ W r Z J 0 J_ I � z zC w O L9 ~ ~ L O > Q C U I --I U° = m Q a U U ' (n w Roadside Ditch Lining Calculations Job Number: 222207 Designed By: LMW Y LU o Stockton Creek Lane Ma S--o% EC-2,MaxV�.ofps VDOTO.AI,n=0.072 W Q o Ma V=3.Ofps EC-3TypeA,Mas V=7.0fps VDOT CI. I, n�.086 ~ L I z E LU H a VDOT CI.II, n=0.095 � �if// o Ir �_ z 0 E w w z w Z z w z n/ O w N z /� V i �/ J i o U J o 0 W 1r ^ o > fQ V � C O CD N Roadside Ditch Lining Calculations Job Number: 222207 Designed By: LMW Stockton Creek Court Max S=5.O% EC-2,Max V=30fps VDOTCI.AI,n=0.072 0 y MaxV�Afps EC-3TypeA,Max V=7.0fps VDOTCI.I,n=0L86 E VDOTCI.II, n=0D95 U O w O w w ii o U 0 JOB NO. 222207 ° a SCALE 0 N/A 0 a SHEET NO. 13 ®®------_- GRATE INLET COMPUTATIONS STRUCTURE DRAINAGE Sta Sta T= C Area CA I= Q= Slope Fa Sta From Sta To T. (mim) C Value Area (ac.) CA cc k (im/hr) Q= (cfs) Slope (ft/ft) Earth (n=0.03) Jute(Sod) (n�.05) Ri ra ho (in/hr) Quo (cfs) Depth,o (ft) MmDesi n Width (ft) Vel. Depth VeL Depth VeL Depth (Depth) (Type) Note: Ditch tennates at STR 7 10+00 12+30 9.0 0.35 5.57 1.95 4.7 9.16 0.0700 2.8 fps 1.04 ft 5.80 11.31 1.12 ft VDOT CL I � m 8.00 ft Note_ Ditch terminates at STR 6 10+00 12+30 10.0 0.50 3.87 1.94 4.6 8.90 0.0700 2.8 fps 1.03 ft 5.60 10.84 1.11 ft VDOT CL I Ripmp 8.00 ft