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HomeMy WebLinkAboutWPO202300014 Plan - VSMP 2023-03-03SITE DATA OWNER/DEVELOPER RIO COMMONS LLC 1701 ALLIED STREET SUITE B-4 CHARLOTTESVILLE, VA 22903 PLAN PREPARER: ROUDABUSH, GALE, & ASSOCIATES 999 SECOND STREET CHARLOTTESVILLE, VA. 22902 (434)-977-0205 TAX MAP PARCEL No: 06100-00-00-167A0, 06100-00-00-171AO TOTAL PARCEL AREA: 7.11 AC (61-167A) ZONING: R4 RESIDENTIAL CURRENT USE: 2 SINGLE FAMILY DETACHED (SFD) HOMES PROPOSED USE: BONUS LEVEL CLUSTER DEVELOPMENT III .IIII IIIIIm I'lll'I IIII I' Ill mon'mI IQI llunll Uruilll 11 III III I I i I I III III Iv II III IIII' I � III IIII III III III IIIII I ('.IIII III lit I III IJ.III, il,IIIJI III,, ''G II III III ILIA IIIIIIIIIII II IIII IIIII III III '� TAX MAP 61 PARCEL 167A WPO 0000-00000 RIO MAGISTERIAL DISTRICT, COUNTY OF ALBEMARLE, VA *ALL NEW RIGHT-OF-WAY SHOWN HEREON SHALL BE DEDICATED TO ALBEMARLE COUNTY FOR PUBLIC USE WITH RECORDATION OF THE FINAL SUBDIVISION PLAT. VICINITY MAP SCALE: 1 "=1000 FEET STORMWATER MANAGEMENT COMPLIANCE NARRATIVE THE DEVELOPMENT OF RIO COMMONS WILL OCCUR IN TWO PHASES OF CONSTRUCTION. THE COMPLETED PROJECT WILL UTILIZE A SEPARATE WPO PLAN TO SATISFY CHANNEL AND FLOOD PROTECTION. STORMWATER RUNOFF WILL BE COLLECTED AND HANDLED THROUGH A MANMADE STORMWATER CONVEYANCE SYSTEM ON -SITE. RUNOFF WILL THEN FLOW TO AN ADJACENT PERMITTED FACILITY. THE POND WILL BE CONSTRUCTED AS PART OF THE ADJACENT RIO POINT DEVELOPMENT (TMP 61-167C). 9VA25-870-63 WATER QUALITY DESIGN CRITERIA REQUIREMENTS - THE PROJECT SATISFIES THE REQUIRED REDUCTION OF ITS ANNUAL PHOSPHORUS LOAD THROUGH THE PRESERVATION OF FOREST/OPEN SPACE, AND PURCHASE OF OFF -SITE NUTRIENT CREDITS. 9VA25-870-66.B CHANNEL PROTECTION REQUIREMENTS -THE PROJECT SATISFIES ITS REQUIRED CHANNEL PROTECTION BY CONVEYING RUNOFF THROUGH MANMADE CHANNELS AND RELEASING CONCENTRATED FLOWS INTO A LEVEL 1 RETENTION POND ON ADJACENT TMP 61-167C, DESIGNED AS PART OF WPO 202200011. THE RETENTION POND WAS DESIGNED TO CAPTURE ALL FLOW FROM ON -SITE STORMWATER CONVEYANCE SYSTEMS. 9VA25-870-66.0 FLOOD PROTECTION REQUIREMENTS - THE ON -SITE STORMWATER CONVEYANCE SYSTEM CONTAINS THE 10-YEAR 24-HOUR STORM EVENT WITHOUT EXPERIENCING LOCALIZING FLOODING. THE POND DOWNSTREAM OF THE ON -SITE STORMWATER CONVEYANCE SYSTEM HAS BEEN DESIGNED TO DISCHARGE POST -DEVELOPED 10 YEAR PEAK FLOWS WHICH ARE LESS THAN 10 YEAR PREDEVELOPED PEAK FLOWS (SEE WPO 202200011 FOR DESIGN DETAILS). Sheet Index Sheet Number Sheet Title 1 COVER SHEET 2 STANDARD NOTES 3 EXISTING CONDITIONS & DEMOLITION PLAN 4 EXISTING CONDITIONS & DEMOLITION PLAN 5 EROSION & SEDIMENT CONTROL PLAN - PHASE I 6 EROSION & SEDIMENT CONTROL PLAN - PHASE II 7 EROSION & SEDIMENT CONTROL DETAILS 8 STORMWATER MANAGEMENT PLAN 9 STORMWATER MANAGEMENT QUALITY 10 STORMWATER MANAGEMENT QUANTITY 11 STORMWATER MANAGEMENT DETAILS TOTAL SHEETS = 11 APPROVALS DEPARTMENT SIGNATURE DATE DEPARTMENT OF COMMUNITY DEVELOPMENT ENGINEERING INSPECTIONS U COD z r^ O � ffM�: Ow u. i N 0 U Q ❑ � m m r Iwo U)> wn�zm cf) moo w 0 rn r d w Z Q Ir d w U 0 z O a Lu O O U) m ti Q O z DRAFTER: AGF F i L. Taggart Lic. No. 22a41 �44 02/22/23 10NAL Q L _--I cr Zm Lu Q 0 LL 0 75 r W z W= V > -Z O U L 0 0 J W U) U_) C� Q O DATE: 2-22-23 SCALE: AS SHOWN WPO: - - FILE: 18.0025 9FIEET: 1 OF 11 EROSION AND SEDIMENT CONTROL NARRATIVE PROJECT DESCRIPTION THE CONSTRUCTION OF RIO COMMONS PROPOSES THE CONSTRUCTION OF 43 ATTACHED TOWNHOUSE UNITS. TOTAL DISTURBED AREA IS 3.47 AC. EARTHWORKS THERE WILL BE AN ESTIMATED 10100 CU. YD. OF EXCESS MATERIAL AFTER FINE GRADING. THIS VOLUMETRIC CALCULATION IS FOR APPROXIMATION ONLY. PRIOR TO CONSTRUCTION 1. OWNER SHALL POST SURETY BONDS FOR CONSTRUCTION, EROSION & SEDIMENT CONTROL. 2. CONTRACTOR SHALL OBTAIN PERMITS TO WORK WITHIN STATE RIGHT-OF-WAY (VDOT LAND -USE PERMIT). BONDING FOR WORK WITHIN THE VDOT RIGHT-OF-WAY MAY BE REQUIRED TO OBTAIN THE PERMIT. 3. CONTRACTOR SHALL COORDINATE WITH OWNER TO OBTAIN VSMP PERMITS, AS REQUIRED BY THE STATE DEPARTMENT OF ENVIRONMENTAL QUALITY (DEQ). 4. CONTRACTOR SHALL OBTAIN LAND DISTURBANCE PERMIT FROM THE COUNTY OF ALBEMARLE PRIOR TO BEGINNING CONSTRUCTION. 5. A PRE -CONSTRUCTION MEETING WITH THE ENGINEER, THE CERTIFIED LAND DISTURBER, AND THE ENVIRONMENTAL INSPECTOR MAY ALSO BE REQUIRED. ALLOW 72 HOURS FOR COORDINATION AND SCHEDULING OF PRE -CONSTRUCTION MEETING. OFF -SITE AREAS ALL EXCESS MATERIAL GENERATED AS PART OF THIS PROJECT SHALL BE HAULED TO A LOCATION WITHIN THE RIO POINT DEVELOPMENT THAT HAS BEEN APPROVED BY THE COUNTY OF ALBEMARLE COMMUNITY DEVELOPMENT DEPARTMENT. SOILS 21B - CULPEPER FINE SANDY LOAM (2% TO 7% SLOPES): HYDROLOGIC SOILS GROUP B. MODERATELY SLOPING AND WELL DRAINED. STARTING AT SURFACE LAYER TO SUBSTRATUM, SOIL LAYERS CONSIST OF FINE SANDY LOAM, CLAY, SANDY CLAY LOAM, AND FINE SANDY LOAM. AVAILABLE WATER STORAGE IS MODERATE. SOILS GROUP: 21C - CULPEPER FINE SANDY LOAM (7% TO 15% SLOPES): HYDROLOGIC SOILS GROUP B STEEP SLOPES AND WELL DRAINED. STARTING AT SURFACE LAYER TO SUBSTRATUM, SOIL LAYERS CONSIST OF FIND SANDY LOAM CLAY, SANDY CLAY LOAM, AND FINE SANDY LOAM. AVAILABLE WATER STORAGE CAPACITY IS MODERATE. SURFACE RUNOFF IS MEDIUM. SOILS GROUP: 48E - PHILOMONT SANDY LOAM (25% TO 45% SLOPES): HYDROLOGIC SOILS GROUP A. STEEP SLOPES AND WELL DRAINED. STARTING AT SURFACE LAYER TO SUBSTRATUM, SOIL LAYERS CONSIST OF SANDY LOAM. AVAILABLE WATER STORAGE IS MODERATE. SURFACE RUNOFF IS MEDIUM. CRITICAL AREAS A. STEEP SLOPES STEEP SLOPES (PRESERVED) AND STEEP SLOPES (MANAGED) PER ALBEMARLE COUNTY GIS DOES EXIST ON THE NORTH EAST SIDE OF THE SITE. THE AREAS WHERE CONSTRUCTION ACTIVITIES OCCUR NEAR PRESERVED STEEP SLOPES, TREE PROTECTION AND SILT FENCE WILL BE INSTALLED AS A PROTECTIVE BARRIER, AS TO NOT DISTURB THE SLOPES. STRUCTURAL PRACTICES 1. SAFETY FENCE (3.01) - A TEMPORARY SAFETY FENCE SHALL BE CONSTRUCTED WHERE DEEMED NECESSARY DURING CONSTRUCTION TO PROTECT THE MANHOLES AND SANITARY LINE FROM CONSTRUCTION TRAFFIC. 2. TEMPORARY CONSTRUCTION ENTRANCE (3.02) - A TEMPORARY CONSTRUCTION ENTRANCE SHALL BE INSTALLED AT SITE ENTRANCE ON FOWLER STREET. 3. ROAD STABILIZATION (3.03) - ACCESS ROADS, PARKING AREAS, AND OTHER ON -SITE VEHICLE TRANSPORTATION ROUTES SHALL BE STABILIZED WITH STONE IMMEDIATELY AFTER GRADING. 4. SILT FENCE BARRIER (3.05) - SILT FENCE BARRIERS WILL BE INSTALLED TO FILTER RUNOFF FROM SHEET FLOW AS INDICATED ON THE EROSION AND SEDIMENT CONTROL PLAN. 5. DIVERSION (3.12) - A CHANNEL CONSTRUCTED ACROSS A SLOPE WITH A SUPPORTING EARTHEN RIDGE ON THE LOWER SIDE. 6. TEMPORARY SEDIMENT TRAP (3.13) - A TEMPORARY PONDING AREA FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE OUTLET. VEGETATIVE PRACTICES 1. TOPSOILING & STOCKPILING (3.30) - TOPSOIL WILL BE STRIPPED FROM AREAS TO BE GRADED AND STOCKPILED FOR LATER USE. STOCKPILES ARE TO BE STABILIZED WITH TEMPORARY VEGETATION OR TO HAVE SILT FENCE INSTALLED ALONG THE LOWER PERIMETER TO PROTECT DOWNSTREAM AREAS. 2. TEMPORARY SEEDING (3.31) - AREAS NOT BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 14 DAYS SHALL BE STABILIZED WITH A TEMPORARY SEED MIXTURE ACCEPTABLE FOR THAT TIME OF YEAR. CRIMPING, PUNCH ROLLER -TYPE ROLLERS, OR TRACK WALKING MAY BE USED TO INCORPORATE STRAW MULCH INTO THE SOIL ON SLOPES IF STRAW IS TO BE USED. 3. PERMANENT SEEDING (3.32) - AREAS BROUGHT TO FINAL GRADE OR THOSE CONSTRUCTION AREAS THAT WILL REMAIN DORMANT FOR YEAR OR MORE SHALL BE STABILIZED WITH A PERMANENT SEED MIXTURE ACCEPTABLE TO THAT TIME OF YEAR. PREPARE SURFACE WITH APPROVED TREATMENT AND ADDITIVES PRIOR TO APPLYING SEED. 4. MULCH 3.35) - PLANT RESIDUES OR OTHER SUITABLE MATERIALS SHALL BE APPLIED TO DISTURBED SURFACES TO PREVENT EROSION AND REDUCE OVERLAND FLOW VELOCITIES. THIS PRACTICE SHOULD BE APPLIED TO ALL SEEDING OPERATIONS, OTHER PLANTER MATERIALS WHICH DO NOT PROVIDE ADEQUATE SOIL PROTECTION BY THEMSELVES, AND BARE AREAS WHICH CANNOT BE SEEDED DUE TO THE SEASON BUT WHICH STILL NEED PROTECTION TO PREVENT SOIL LOSS. CRIMPING, PUNCH ROLLER -TYPE ROLLERS, OR TRACK WALKING MAY BE USED TO INCORPORATE STRAW MULCH INTO THE SOIL ON SLOPES IF STRAW IS TO BE USED. 5. EROSION CONTROL BLANKETS (3.36) - EROSION CONTROL BLANKETS IN CONJUNCTION WITH PERMANENT SEEDING WILL BE INSTALLED ON ALL SLOPES STEEPER THAN 3:1 FOLLOWING GRADING. EROSION CONTROL BLANKETS WILL ALSO BE INSTALLED IN DITCHES WHERE POTENTIAL EROSIVE VELOCITIES MAY EXIST AS DETERMINED BY ENGINEERING CALCULATIONS. THIS WILL PROTECT FROM RILL AND GULLY EROSION. 6. TREE PROTECTION (3.38) - THE TREE FENCE BARRIER WILL BE INSTALLED TO PROTECT THE TREES OUTSIDE OF THE LIMITS OF DISTURBANCE AS INDICATED ON THE EROSION AND SEDIMENT CONTROL PLAN. 7. DUST CONTROL (3.39) - DUST CONTROL METHODS MUST BE USED TO REDUCE THE AMOUNT OF AIRBORNE DUST DURING ALL PHASES OF CONSTRUCTION WHERE SOIL IS EXPOSED OR DISTURBED. MANAGEMENT STRATEGIES 1. CONSTRUCTION WILL BE SEQUENCED SO THAT GRADING OPERATIONS CAN BE SEQUENCED, AND ALSO BEGIN AND END AS QUICKLY AS POSSIBLE. 2. THE CONSTRUCTION ENTRANCE AND PERIMETER EROSION CONTROL MEASURES SUCH AS TREE PROTECTION AND SILT FENCE SHALL BE INSTALLED AS THE FIRST STEP OF DISTURBANCE. 3. SEDIMENT TRAPS SHALL BE INSTALLED WITH PERIMETER SILT FENCE PRIOR TO ANY GRADING AND SHALL BE SEEDED AND MULCHED IMMEDIATELY FOLLOWING INSTALLATION. 4. THE SEDIMENT TRAPS SHALL BE CHECKED FOR SEDIMENT ACCUMULATION AFTER EVERY RUNOFF PRODUCING STORM EVENT. SEDIMENT SHOULD BE REMOVED WHEN IT REACHES ONE-HALF OF THE DESIGN VOLUME OF THE WET STORAGE. 5. TEMPORARY SEEDING OR OTHER STABILIZATION METHODS, SUCH AS BASE AGGREGATE WILL FOLLOW IMMEDIATELY AFTER REACHING FINAL GRADES. 6. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RE -SEEDED AS NEEDED TO ESTABLISH GROWTH.. 7. THE JOB SUPERINTENDENT SHALL BE RESPONSIBLE FOR THE INSTALLATION AND MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL PRACTICES. 8. DURING FINE GRADING OPERATIONS, MAINTAIN ALL DIVERSION DITCHES TO THE SEDIMENT TRAPS AND BASIN. THE SEDIMENT TRAPS AND BASIN SHALL REMAIN FUNCTIONAL THROUGHOUT INSTALLATION OF THE STORM SEWER INLETS, PIPES, OUTFALLS. 9. INSTALL SILT FENCE INLET PROTECTION TRAPPING MEASURES AT EACH INLET LOCATION WITHIN THE DITCH WHERE APPLICABLE. 10. WHILE THE SEDIMENT BASIN REMAINS FUNCTIONAL FOR THE DISTURBED AREA, INSTALL THE STORMWATER MANAGEMENT PIPES AND OUTLET PROTECTION MEASURES PER THE SPECIFICATIONS. 11. AFTER BEING NOTIFIED BY THE EROSION AND SEDIMENT CONTROL ADMINISTRATOR, THE TEMPORARY EROSION AND SEDIMENT CONTROLS CAN BE CLEANED UP OR REMOVED, AND THE SEDIMENT BASIN CAN BE FILLED IN AND SEEDED, THEREBY REDIRECTING DRAINAGE TO THE PERMANENT FACILITIES. THE STORMWATER MANAGEMENT FACILITIES SHOULD BE CHECKED REGULARLY BY THE HOMEOWNERS ASSOCIATIONS TO ENSURE THAT THEY ARE STRUCTURALLY SOUND AND HAVE NOT BEEN DAMAGED. PERMANENT STABILIZATION ALL AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH STRAW & SEED IMMEDIATELY FOLLOWING FINISHED GRADE. SEEDING SHALL BE DONE WITH KENTUCKY 31 TALL FESCUE IN ACCORDANCE TO STANDARD AND SPECIFICATION 3.32, PERMANENT SEEDING, OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. ANY FERTILIZER AND LIME APPLICATIONS SHALL BE IN ACCORDANCE WITH SOIL TEST RESULTS. ALL SEEDED AREAS WILL BE STRAW MULCHED TO PROTECT AGAINST RILL EROSION AND TO PRESERVE SOIL MOISTURE THAT WILL ENHANCE SEED GERMINATION. CRIMPING, PUNCH ROLLER -TYPE ROLLERS, OR TRACK WALKING MAY BE USED TO INCORPORATE STRAW MULCH INTO THE SOIL ON SLOPES IF STRAW IS TO BE USED. EROSION CONTROL MAINTENANCE 1. IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL. THE FOLLOWING ITEMS WILL BE CHECKED IN PARTICULAR: 2. THE CONSTRUCTION ENTRANCE SHALL BE CHECKED DAILY FOR SOIL BUILDUP. IF THE ENTRANCE BECOMES CLOGGED WITH SOIL AND FAILS TO PREVENT THE TRANSPORTATION OF SOIL ONTO THE ROADWAY, ADDITIONAL STONE, REPLACEMENT OF ONE, OR A WASH -RACK MAY BE REQUIRED. 3. SILT FENCE SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST DAILY DURING PROLONGED RAINFALL. CLOSE ATTENTION SHALL BE PAID TO THE REPAIR OF DAMAGED SILT FENCE RESULTING FROM END RUNS AND UNDERCUTTING. SHOULD THE FABRIC ON A SILT FENCE DECOMPOSE OR BECOME INEFFECTIVE PRIOR TO THE END OF THE EXPECTED USABLE LIFE AND THE BARRIER STILL BE NECESSARY, THE FABRIC SHALL BE REPLACED PROMPTLY. SEDIMENT DEPOSITS SHOULD BE REMOVED AFTER EACH STORM EVENT. THEY MUST BE REMOVED WHEN DEPOSITS REACH APPROXIMATELY ONE-HALF THE HEIGHT OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE SILT FENCE IS NO LONGER REQUIRED SHALL BE DRESSED TO CONFORM WITH THE EXISTING GRADE, PREPARED, AND SEEDED. 4. DIVERSION DIKES SHALL BE INSPECTED AFTER EVERY STORM AND REPAIRS MADE TO THE DIKE, FLOW CHANNEL, OUTLET, OR SEDIMENT TRAPPING FACILITY AS NECESSARY. ONCE EVERY TWO WEEKS, WHETHER A STORM EVENT HAS OCCURRED OR NOT, THE MEASURE SHALL BE INSPECTED AND REPAIRS MADE IF NEEDED. DAMAGES CAUSED BY CONSTRUCTION TRAFFIC OR OTHER ACTIVITY MUST BE REPAIRED BEFORE THE END OF EACH WORKING DAY. 5. STORMWATER CONVEYANCE CHANNELS (WHERE APPLICABLE): 5.1. GRASS LINED CHANNELS - DURING THE INITIAL ESTABLISHMENT, GRASS LINED CHANNELS SHOULD BE REPAIRED IMMEDIATELY AND RE-ESTABLISHED IF NECESSARY. AFTER GRASS HAS BECOME ESTABLISHED, THE CHANNEL SHOULD BE CHECKED PERIODICALLY TO DETERMINE IF THE GRASS IS WITHSTANDING FLOW VELOCITIES WITHOUT DAMAGE. IF THE CHANNEL IS TO BE MOWED, IT SHOULD BE DONE IN A MANNER THAT IT WILL NOT DAMAGE THE GRASS. 5.2. RIPRAP-LINED CHANNELS - RIPRAP LINED CHANNELS SHOULD BE CHECKED PERIODICALLY TO ENSURE THE SCOUR IS NOT OCCURRING BENEATH FABRIC UNDERLINING OF THE RIPRAP LAYER. THE CHANNEL SHOULD ALSO BE CHECKED TO DETERMINE THE STONES ARE NOT DISLODGED BY LARGE FLOWS. 5.3. IF SEDIMENT IS DEPOSITED IN A GRASS -LINED CHANNEL, IT SHOULD BE REMOVED PROMPTLY TO PREVENT DAMAGE TO THE GRASS. SEDIMENT DEPOSITED IN A RIPRAP CHANNEL SHOULD BE REMOVED WHEN IT REDUCES THE CAPACITY OF THE CHANNEL. 6. CHECK DAMS SHALL BE CHECKED FOR SEDIMENT ACCUMULATION AFTER EVERY RUNOFF PRODUCING STORM EVENT. SEDIMENT SHOULD BE REMOVED WHEN IT REACHES ONE-HALF OF THE ORIGINAL HEIGHT OF THE MEASURE. REGULAR INSPECTIONS SHALL BE MADE TO INSURE THE CENTER OF EACH DAM IS LOWER THAN THE EDGES. EROSION CAUSED BY HIGH FLOWS AROUND THE EDGES OF THE DAM SHOULD BE CORRECTED IMMEDIATELY. 7. THE EARTHEN EMBANKMENTS SHALL BE CHECKED REGULARLY TO ENSURE THAT IT IS STRUCTURALLY SOUND AND HAS NOT BEEN DAMAGED BY EROSION OR CONSTRUCTION EQUIPMENT. 8. THE BASIN SHOULD BE CHECKED AFTER EACH RUNOFF -PRODUCING RAINFALL FOR SEDIMENT CLEANOUT. WHEN THE BASIN REACHES CLEAN -OUT LEVEL, IT SHALL BE REMOVED AND PROPERLY DISPOSED OF. 9. THE STORMWATER MANAGEMENT FACILITIES SHOULD BE CHECKED REGULARLY BY THE HOMEOWNERS ASSOCIATIONS TO ENSURE THAT THEY ARE STRUCTURALLY SOUND AND HAVE NOT BEEN DAMAGED BY EROSION. 10. THE EMERGENCY SPILLWAY SHALL BE CHECKED REGULARLY TO ENSURE THAT ITS LINING IS WELL ESTABLISHED AND EROSION RESISTANT. GRASS SHALL BE KEPT MOWN BELOW A HEIGHT OF 15" AND THE OUTLET SHOULD BE CHECKED FOR CLOGGING. 11. THE DAM SECTION SHALL BE KEPT FREE OF SAPLINGS OR TREES.(REFER TO THE ADDITIONAL MAINTENANCE SPECIFICATIONS) 12. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RE -SEEDED AS NEEDED. IN THE EVENT THAT THE APPLIED SEEDING FAILS TO TAKE HOLD, BLANKET MATTING SHALL BE PLACED IN APPROPRIATE AREAS DEEMED NECESSARY BY THE ENGINEER OR EROSION CONTROL INSPECTOR. SEQUENCE OF CONSTRUCTION AFTER OBTAINING ALL REQUIRED PERMITS THE CONTRACTOR SHALL COORDINATE A PRE -CONSTRUCTION MEETING, ALLOWING 72 HOURS FOR ITS COORDINATION. 1. PHASE 1 1.1. INSTALL THE CONSTRUCTION ENTRANCE AT SITE ENTRANCE OFF OF RIO RD E. SHOULD THE TEMPORARY CONSTRUCTION ENTRANCE NOT BE MAINTAINED PROPERLY OR AN EXCESSIVE AMOUNTS OF SOIL BE TRACKED ONTO THE PUBLIC ROADWAY, THEN A PAVED CONSTRUCTION ENTRANCE, WATER TANKER TRUCK WITH TWO (2) PRESSURE WASHERS, AND A SETTLING AREA MAY BE REQUIRED BY THE EROSION AND SEDIMENT CONTROL PROGRAM ADMINISTRATOR. 1.2. PLACE SILT FENCE TREE PROTECTION AND OTHER PERIMETER CONTROLS. CLEARING AND GRUBBING SHALL FIRST BE LIMITED TO THAT NECESSARY TO INSTALL THE PERIMETER CONTROLS. 1.3. INSTALL SEDIMENT TRAPS 1 AND 2. PROVIDE STABILIZATION MEASURES TO ALL TRAPS. 1.4. CONTRACTOR TO CONSTRUCT DIVERSION DIKES (DD) TO DIRECT RUNOFF TO THE SEDIMENT TRAPS. CONTRACTOR TO ENSURE A POSITIVE SLOPE IS MAINTAINED. BERM SHALL BE STABILIZED AS A FIRST STEP IN DISTURBANCE. 1.5. ONCE ALL OF THE PHASE 1 CONTROLS ARE INSTALLED, AND PRIOR TO ADDITIONAL CLEARING AND GRUBBING, THE CONTRACTOR SHALL COORDINATE INSPECTIONS, AS REQUIRED BY THE COUNTY OF ALBEMARLE. 1.6. CLEAR AND GRUB THE REMAINDER OF THE PROJECT AREA. THE LAND DISTURBANCE SHALL BE RESTRICTED TO THE LIMITS OF DISTURBANCE SHOWN IN THE APPROVED EROSION CONTROL PLANS. 1.7. STRIP TOPSOIL AND STOCKPILE WITHIN AN AREA ON THE PROPERTY AT A LOCATION APPROVED BY ALBEMARLE COUNTY COMMUNITY DEVELOPMENT. INSTALL SILT FENCE AT THE PERIMETER OF THE STOCKPILE(S). 1.8. CONTRACTOR TO BRING SITE UP TO GRADE AS SHOWN ON THE PHASE 2 EROSION AND CONTROL PLAN. CONSTRUCTION ROAD STABILIZATION MAY BE REQUIRED. 1.9. PERMANENT SOIL STABILIZATION SHALL BE APPLIED TO ALL DENUEDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT TO BE LEFT DORMANT FOR MORE THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. LIME, FERTILIZE, AND APPLY TEMPORARY OR PERMANENT SEEDING TO ALL DENUDED AREAS IMMEDIATELY AFTER ACHIEVING FINAL GRADES. ALL PERMANENT SLOPES STEEPER THAN 3:1 SHALL RECEIVE STABILIZATION WITH LANDSCAPING VEGETATION HARDIER THAN GRASS, WHICH WILL NOT REQUIRE MOWING. 2. PHASE 2 2.1 CONTRACTOR TO BEGIN CONSTRUCTION ON ALL UTILITIES. ALL INLETS MUST BE PROTECTED BY INLET PROTECTION (IP) AS SHOWN ON SHEET 6. 2.2 FINE GRADE AND INSTALL CURBING, ROADS, AND LOTS. MUCK OUT, FILL, AND CLOSE TRAPS ONCE WATER IS FLOWING TO THE INLETS AND THROUGH THE STORMWATER PIPES. 2.3 SPREAD TOPSOIL AND ADD PERMANENT SEEDING TO ANY DISTURBED AREA.. 2.4 AFTER SITE IS STABILIZED AND PERMISSION IS OBTAINED FROM THE EROSION CONTROL INSPECTOR, REMOVE SILT FENCING AND OTHER REMAINING EROSION CONTROL MEASURES IF DEEMED APPROPRIATE BY ALBEMARLE COUNTY. 2.5 DEMOBILIZE. EROSION AND SEDIMENT CONTROL MINIMUM STANDARDS 1. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 14 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR 1.1. CONTRACTOR SHALL ESTABLISH A STABILIZED SITE, AND NOT ALLOW ANY SEDIMENT TO EXIT THE PROJECT LIMITS. 2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES AND BORROW AREAS SHALL BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES. THE APPLICANT IS RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS AND SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE. 2.1. CONTRACTOR TO PROTECT STOCKPILE AREAS WITH SILT FENCE. 3. A PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY STABILIZED. PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL A GROUND COVER IS ACHIEVED THAT IS UNIFORM, MATURE ENOUGH TO SURVIVE AND WILL INHIBIT EROSION. 3.1. CONTRACTOR SHALL ESTABLISH A VEGETATIVE COVER ON ALL DENUDED AREAS. 4. SEDIMENT BASINS AND TRAPS, PERIMETER DIKES, SEDIMENT BARRIERS AND OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY LAND -DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 4.1. CONTRACTOR SHALL ESTABLISH THE PERIMETER CONTROLS AS THE FIRST STEP OF THE LANDS DISTURBANCE FOR THIS PROJECT. 5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION. 5.1. CONTRACTOR SHALL INSPECT EROSION CONTROL MEASURES AFTER EACH RAINFALL EVENT. 6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP OR BASIN. 6.1. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY CONTROL DRAINAGE AREAS LESS THAN THREE ACRES. 6.2. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW FROM DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES SHALL BE CONTROLLED BY A SEDIMENT BASIN. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT BASIN SHALL BE 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA. THE OUTFALL SYSTEM SHALL, AT A MINIMUM, MAINTAIN THE STRUCTURAL INTEGRITY OF THE BASIN DURING A 25-YEAR STORM OF 24-HOUR DURATION. RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL CORRESPOND TO A BARE EARTH CONDITION OR THOSE CONDITIONS EXPECTED TO EXIST WHILE THE SEDIMENT BASIN IS UTILIZED. 7. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL MINIMIZE EROSION. SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY WITHIN ONE YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED.THERE ARE NO PROPOSED CUT OR FILL SLOPES. HOWEVER, THE CONTRACTOR IS TO RESTORE THE PROJECT AREA TO EXISTING GRADE. IF THE AREAS WITH NATURALLY STEEP SLOPES ARE FOUND TO BE ERODING EXCESSIVELY AFTER ONE YEAR, CONTRACTOR IS TO PROVIDE ADDITIONAL SLOPE STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED. 8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR SLOPE DRAIN STRUCTURE.MAXIMIZE SHEETFLOW AND GROUNDWATER INFILTRATION 9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED. CONTRACTOR TO NOTIFY ENGINEER AND COUNTY EROSION CONTROL INSPECTOR. 10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE PROTECTED SO THAT SEDIMENT -LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT. 11. BEFORE NEWLY CONSTRUCTED STORMWATER CONVEYANCE CHANNELS OR PIPES ARE MADE OPERATIONAL, ADEQUATE OUTLET PROTECTION AND ANY REQUIRED TEMPORARY OR PERMANENT CHANNEL LINING SHALL BE INSTALLED IN BOTH THE CONVEYANCE CHANNEL AND RECEIVING CHANNEL. 12. WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED, PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT AND STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING CONSTRUCTION. NON -ERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS. EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NON -ERODIBLE COVER MATERIALS. CONTRACTOR SHALL FOLLOW THE VESCH CHAPTER 3.25 UTILITY STREAM CROSSING REQUIREMENTS FOR THE TWO INTERMITTENT STREAM CROSSINGS. 13. WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN ANY SIX-MONTH PERIOD, A TEMPORARY VEHICULAR STREAM CROSSING CONSTRUCTED OF NON -ERODIBLE MATERIAL SHALL BE PROVIDED. 14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET.CONTRACTOR SHALL FOLLOW ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS FOR STREAM CROSSINGS. 15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED. 16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA: 16.1. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME. 16.2. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES. 16.3. EFFLUENT FROM DEWATERING OPERATIONS SHALL BE FILTERED OR PASSED THROUGH AN APPROVED SEDIMENT TRAPPING DEVICE, OR BOTH, AND DISCHARGED IN A MANNER THAT DOES NOT ADVERSELY AFFECT FLOWING STREAMS OR OFF -SITE PROPERTY. 16.4. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION. 16.5. RE -STABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THIS CHAPTER. 16.6. APPLICABLE SAFETY REQUIREMENTS SHALL BE COMPLIED WITH.CONTRACTOR TO ADHERE TO THE APPLICABLE STANDARD FOR PRIVATE AND PUBLIC UTILITY INSTALLATION. 17. WHERE CONSTRUCTION VEHICLE ACCESS ROUTES INTERSECT PAVED OR PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY VEHICULAR TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE, THE ROAD SURFACE SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTED TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. THIS PROVISION SHALL APPLY TO INDIVIDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER LAND -DISTURBING ACTI VI TIES. CONTRACTOR SHALL MAKE PROVISIONS TO KEEP ADJACENT ROADS CLEAN FROM SOIL BUILD-UP. 18. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE VESCP AUTHORITY. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION.CONTRACTOR SHALL STABILIZE SITE, AND OBTAIN INSPECTOR APPROVAL PRIOR TO REMOVING EC MEASURES. UPON APPROVAL OF THE ENVIRONMENTAL INSPECTOR, INSTALL INFILTRATION AREAS AND CONNECT ROOF DRAINS. 19. PROPERTIES AND WATERWAYS DOWNSTREAM FROM DEVELOPMENT SITES SHALL BE PROTECTED FROM SEDIMENT DEPOSITION, EROSION AND DAMAGE DUE TO INCREASES IN VOLUME, VELOCITY AND PEAK FLOW RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF 24-HOUR DURATION IN ACCORDANCE WITH THE FOLLOWING STANDARDS AND CRITERIA. STREAM RESTORATION AND RELOCATION PROJECTS THAT INCORPORATE NATURAL CHANNEL DESIGN CONCEPTS ARE NOT MAN-MADE CHANNELS AND SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS. 19.1. CONCENTRATED STORMWATER RUNOFF LEAVING A DEVELOPMENT SITE SHALL BE DISCHARGED DIRECTLY INTO AN ADEQUATE NATURAL OR MAN-MADE RECEIVING CHANNEL, PIPE OR STORM SEWER SYSTEM. FOR THOSE SITES WHERE RUNOFF IS DISCHARGED INTO A PIPE OR PIPE SYSTEM, DOWNSTREAM STABILITY ANALYSES AT THE OUTFALL OF THE PIPE OR PIPE SYSTEM SHALL BE PERFORMED. 19.2. ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE VERIFIED USING THE VSMP CHANNEL PROTECTION CRITERIA. STORMWATER DISCHARGES ARE CLASSIFIED INTO ONE OF THREE TYPES OF CHANNEL. (1) "MANMADE STORMWATER CONVEYANCE SYSTEM" MEANS A PIPE, DITCH, VEGETATED SWALE, OR OTHER STORMWATER CONVEYANCE SYSTEM CONSTRUCTED BY MAN EXCEPT FOR RESTORED STORMWATER CONVEYANCE SYSTEMS OR, (A) THE MANMADE STORMWATER CONVEYANCE SYSTEM SHALL CONVEY THE POST -DEVELOPMENT PEAK FLOW RATE FROM THE TWO-YEAR EVENT WITHOUT CAUSING EROSION OF THE SYSTEM DETENTION OF THE STORMWATER OR DOWNSTREAM IMPROVEMENTS MAY BE INCORPORATED INTO THE APPROVED LAND -DISTURBING ACTIVITY TO MEET THIS CRITERIA AT THE DISCRETION OF THE STORMWATER PROGRAM ADMINISTRATIVE AUTHORITY. (B) THE PEAK DISCHARGE REQUIREMENTS FOR CONCENTRATED STORMWATER FLOW TO NATURAL STORMWATER CONVEYANCE SYSTEMS SHALL BE MET. QDEVELOPED <= I.E. F. QPRE-DEV. : RVPRE-DEV. RVDEVELOPED UNDER NO CONDITION SHALL QDEVELOPED > Q PRE-DEV. NOR SHALL QDEVELOPED BE REQUIRED TO BE LESS THAN THAT QFOREST * RVPRE-DEV.)/RVDEVELOPED OR IN ACCORDANCE WITH ANOTHER METHODOLOGY THAT IS DEMONSTRATED BY THE VSMP AUTHORITY TO ACHIEVE EQUIVALENT RESULTS AND IS APPROVED BY THE BOARD. (2) "NATURAL STORMWATER CONVEYANCE SYSTEM" MEANS THE MAIN CHANNEL OF A NATURAL STREAM AND THE FLOOD -PRONE AREA ADJACENT TO THE MAIN CHANNEL OR, (3) "RESTORED STORMWATER CONVEYANCE SYSTEM" MEANS A STORMWATER CONVEYANCE SYSTEM THAT HAS BEEN DESIGNED AND CONSTRUCTED USING NATURAL CHANNEL DESIGN CONCEPTS. RESTORED STORMWATER CONVEYANCE SYSTEMS INCLUDE THE MAIN CHANNEL AND THE FLOOD -PRONE AREA ADJACENT TO THE MAIN CHANNEL. (A) THE DEVELOPMENT SHALL BE CONSISTENT, IN COMBINATION WITH OTHER STORMWATER RUNOFF, WITH THE DESIGN PARAMETERS OF THE RESTORED STORMWATER CONVEYANCE SYSTEM THAT IS FUNCTIONING IN ACCORDANCE WITH THE DESIGN OBJECTIVES. (B) THE PEAK DISCHARGE REQUIREMENTS FOR CONCENTRATED STORMWATER FLOW TO NATURAL STORMWATER CONVEYANCE SYSTEMS SHALL BE MET. SEE 19(B)(1)(B). GENERAL EROSION AND SEDIMENT CONTROL NOTES WORK AREA PROTECTION & MAINTENANCE 1. ALL FENCES REQUIRED TO BE REMOVED OR DISTURBED BY CONSTRUCTION SHALL BE SALVAGED, STORED, PROTECTED AND RE -INSTALLED BY CONTRACTOR AT THE DIRECTION OF AND LOCATION DESIGNATED BY THE PROJECT MANAGER. IF SUCH FENCE MATERIAL CANNOT BE REUSED DUE TO DAMAGE CAUSED BY CONTRACTOR, CONTRACTOR SHALL INSTALL NEW FENCE OF THE SAME TYPE OF MATERIAL. TEMPORARY FENCING REQUIRED BY PRIVATE PROPERTY OWNERS SHALL BE PROVIDED BY CONTRACTOR. CONTRACTOR IS ADVISED TO CONTACT PROPERTY OWNERS AT LEAST FORTY-EIGHT (48) HOURS IN ADVANCE OF REMOVING ANY FENCE IN ORDER TO COORDINATE RELOCATION AND/OR PROTECTION OF ANY ANIMALS, AND TO ESTABLISH AND CONFIRM WITH THE OWNER THE PRE -CONSTRUCTION CONDITION OF ANY FENCE TO BE REMOVED, DISTURBED OR REPLACED. 2. CONTRACTOR IS PERMITTED TO WORK IN THE PUBLIC RIGHT-OF-WAY (FOLLOWING ISSUANCE OF VDOT APPROVAL) AND ANY TEMPORARY OR PERMANENT EASEMENT (FOLLOWING VERIFICATION OF EXISTENCE OF EASEMENT) SHOWN ON THE PLANS. HOWEVER, CONTRACTOR SHALL NOTIFY PROPERTY OWNER(S) FORTY-EIGHT (48) HOURS PRIOR TO WORKING ON ANY PRIVATE PROPERTY TO GAIN AND COORDINATE ACCESS AND TO DETERMINE A STORAGE AREA FOR MATERIALS IF NEEDED. COORDINATION OF ACCESS TO PUBLIC RIGHT-OF-WAY AND STORAGE OF MATERIALS THEREON SHALL BE COORDINATED WITH VDOT AND THE PROJECT MANAGER. CONTRACTOR'S FAILURE TO SO NOTIFY AND COORDINATE WITH PROPERTY OWNERS AND/OR THE PROJECT MANAGER MAY RESULT IN DELAYS. 3. CONTRACTOR SHALL, AT THEIR EXPENSE, MAINTAIN THE WORK SITE IN A CLEAN AND ORDERLY APPEARANCE AT ALL TIMES. ALL DEBRIS AND SURPLUS MATERIAL COLLECTED SHALL BE DISPOSED OF OFF THE WORK SITE BY CONTRACTOR, AT THEIR EXPENSE. 4. EXISTING LAWNS, TREES, SHRUBS, FENCES, UTILITIES, CULVERTS, WALLS, WALKS, DRIVEWAYS, POLES, SIGNS, RIGHT-OF-WAY MONUMENTS, MAILBOXES AND THE LIKE SHALL BE PROTECTED FROM DAMAGE DURING THE WORK. ANY DAMAGE CAUSED TO SUCH ITEMS SHALL BE REPAIRED OR REPLACED BY CONTRACTOR AT NO ADDITIONAL COST. PROPERTY PINS DISTURBED BY CONTRACTOR THAT ARE NOT SHOWN ON THE PLANS TO BE DISTURBED SHALL BE RESTORED BY A LICENSED SURVEYOR AT CONTRACTOR'S EXPENSE. 5. CONTRACTOR SHALL EMPLOY EROSION CONTROL DEVICES AND METHODS AS REQUIRED TO MEET THE REQUIREMENTS AND INTENT OF THE LOCAL EROSION CONTROL ORDINANCE. CONTRACTOR SHALL PROVIDE THE NECESSARY DIVERSION DITCHES, DIKES OR TEMPORARY CULVERTS REQUIRED TO PREVENT MUD AND DEBRIS FROM BEING WASHED ONTO THE STREETS OR PROPERTY. CONTRACTOR'S VEHICLES SHALL BE KEPT CLEAN TO PREVENT MUD OR DUST FROM BEING DEPOSITED ON STREETS. NO AREA SHALL BE LEFT DENUDED FOR MORE THAN SEVEN (7) CALENDAR DAYS. VEGETATION 1. PRIOR TO REMOVING ANY VEGETATION, CONTRACTOR SHALL MEET WITH THE PROPERTY OWNERS AND THE PROJECT MANAGER TO REVIEW THE LIMITS OF CONSTRUCTION AND OBTAIN PERMISSION TO REMOVE VEGETATION REQUIRED TO DO THE WORK. 2. TREE AND PLANT ROOTS OR BRANCHES THAT MAY INTERFERE WITH THE WORK SHALL BE TRIMMED OR CUT ONLY WITH THE APPROVAL OF THE PROJECT MANAGER. ANY TREES OR PLANTS WHICH ARE SHOWN TO REMAIN THAT DO NOT INTERFERE WITH THE WORK, BUT ARE DAMAGED BY CONTRACTOR OR HIS SUBCONTRACTORS, SHALL BE REPAIRED OR REPLACED BY CONTRACTOR AT NO ADDITIONAL COST. 3. CONTRACTOR SHALL CLEAN UP, RESTORE, SEED AND MAINTAIN ALL DISTURBED AREAS IMMEDIATELY UPON COMPLETION OF WORK ON EACH SITE. TOPSOIL, SEED, FERTILIZER AND MULCH SHALL BE PLACED IN ACCORDANCE WITH ESC AUTHORITY STANDARDS ON ALL DISTURBED AREAS. A PERMANENT STAND OF GRASS ADEQUATE TO PREVENT EROSION SHALL BE ESTABLISHED PRIOR TO FINAL ACCEPTANCE. 4. THE ACT OF RESEEDING SHALL NOT QUALIFY AS "STABILIZED". THE CONTRACTOR SHALL BE RESPONSIBLE TO ESTABLISH VEGETATION, NOT SIMPLY APPLY SEED AND MATERIALS. GENERAL CONSTRUCTION NOTES 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 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 7:00 AM TO 9:00 PM. 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAT 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 OF 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 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 50/50 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 80 LBS/100SF. ALTERNATIVES ARE SUBJECT TO BE APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90 LBS/1000SF. INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000 LBS/ACRE AND CONSIST OF A 10 20 10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 180 LBS/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 80 LBS/10OSF. ALTERNATIVES ARE SUBJECT TO BE APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. U 4 U O z Gn O rn 0 fr w N W _ LU 48 uLU) Od N Z (0 Q U ormoo= O-.0z U wQm 0 O � rn00, M•rj LL Z rn oJ[ d w M� 0- w U a co 9 Q z O d rr U U) w 0 U) z O w m m w Q Q O z = -, �4�PyTH OF `4 , c u 9? / v Jimmy L. Taggart Lic. No. 22841 n �oFE 02/22/23 G �� SSI0NAL E� > LE J (n If - I W zGo J OO W z z O Q5 z a- O 0 O�~ Q cco >� z U - 0 Q OCE LLJ M � Q 0 If DRAFTER: AGF DESIGNER: AGF PRODUCTION: ZQD DATE: 2-22-23 SCALE: - WPO: FILE: 18.0025 SHEET: 2 OF 11 1, 0459--1' TO ✓ I N 4r WARNER PKWY. SR. 631 Uc� UGT _ JGr JGr UCT UGT � ucT RIO ROAD E. / 30' PRESCRIPTIVE AND / VARIABLE WIDTH R/W / � UGT UGT 46.3' \ .48 S SE \ UGT ucT ucT S723*�l6"E/ / UGT \ GT � \ / DASHED LINE INDICATES MILL & OVERLAY MB 475 ± TO NEAREST- IN ACCORDANCE WITH VDOT WP-2 DETAIL 7awsl"T rs>t�Mwm=wllli �' I __�wv LEXISTING WATER LINE�� i -• Cl 64.50' EX. TREES (TBR) 470— -' N08'59'35"W 64.50' 18" CDR \ (4) TREES TBR ! 6" DWD 8" MPL — ^ H QH OH \ x'-- � \ ✓ ItiH OH OH OH 0 OH lOH OH OH OH OH `pH OH 0- ^ Oki OH � H'- OH UP 6" OAK- -15" OAK\ \ -_� B \ \ WM L 8., MP — 518716 6" OAK -I L15" OAK 30" OAK- �� o �� o �40-JO" _ ROAD SIGN co 1 "� —30" OAK 60' POP— / ` FOM \ CrB) v DRru 1 a (TBR) 18" POP- \ (TBR) \ I EX. POWERLINES TBR FFE \ \ \ O Shrub � S O I LS TYPE :� V Shrub ^ \Shrub " \\� _ PROPOSED / l SECONDARY ACCESS \ \ \ I 47�67 FFE BUILDING / \ \ ` \ \ \ \ \ \ \ (TBR) \ � I I 1 Post — \ 1� 6" SYC^ 10"" SYC \ � \ o I _ \ � _ 1111111110 \ \ _ SOIL B�N DA Y (TYRE \ \ DP�1 N60 \ 0 / 12" SY EX. TREES (TBR) l \ ` GH /off / / / I I I I / \ \ • 12" SYC \ \ • OH I \ \ \off POWERL NE, POLE AND PROPOSED LEVEL 1 POND \ \ RSo OH \ G Y WIRES (T R) GWA AS PER WPO 2022-00011 PLAN _ \ \ J \ (BY OTHERS) \ \ GWA / I \ OH / EX. FENCE 15" Oil OH OH OH- \ p P O \ WM `\ 24.19' PROPOSED SITE \ 5" HOLLY-v \ / `GWAx3 I ENTRANCE LOCATION �29.58' / o, J \ f - / / �-(TBRj 11L\ J IEX. GWA .� / /ems 479.09' CONC. SW \ 18" HOLLY - I(TBR) FFE (TBR) i► 3 (cwA I , WW Y�X 00 pZ H \ 111 NO FTx3 UP .50' K 0'T / / A CO D / BR1 CONC. �. W� WW 8 PAD o F WEL \/ CONC - WW \ p"4—1 PATIO ® \ EX. WELL TqB\E CLOSED IN (TNP)l 4 ACCORDANCE WITH VA. DEPT. 10" D11� 7/ OF HEALTH REGULATIONS. / \ H1C/ �� \ PAVEDRIVE 6081 (TBA) I' o'r / EX. CLOTHESLINE f (TBR) / \ / I G rBR) GWA \GWA TMk 61-17 iA \, GWA 0 \724 AC.I II EX. STRUCTURE �X. BUILDING (TBR) (TBR) UP Z \ \ EX. \ BUILDING LEGEND TREE TO BE REMOVED (TBR) SOIL TYPE 1• STEEP SLOPES (PRESERVED) PROPERTY LINE BULDINGS TO BE DEMOED OH 0 \ \ SOIL TYP ■ 2 1 4 (TBR)L / / I OH I I / �� TMP -171 \ \ f 1 \ 12" Loc \ / I l I I N/F ST UMLAUF, / \ STE! EN OR 559N/A-FOX D Loc \ 12"1oc I / DB 672 PG 165 / RESIDENTIAL Ex. / off / i I — 'j I I , ZONING.- R4 L SHED / / 0" z I I I S 12" SYC—DBL \ \ I ` / / f EX. STRUCTUBRR / �6" BXWD 1.90 ACRES \ \ —UP OH f ) (TBR) EX. TREES (TBR) f l 10"' SYCLGW z' I I II 6" LOC 1 ,. SYG� EX. FENCE' BR \TMP 611- 167C — — / �B 168w PG�174 \ / Z�N/IyG R4yap / 25.7 ACRES f f / I / / / / / / �48" MPL- / (TBR) / 6b818287 I� ( 1 / / I I EX. FENCE (TBR) / I 03 / / / ✓ I / l l / PF O, C \PF / / / / / / / / / I \ / I I I / / 18" CORj I / / j 1 1 "DCrBR�i J �-10" OAK 1 "OAK � (TBR) TREE LINE(TBR) I I ✓r PROPEXTYBOUNDAt I I NOT FOR CONSTRUCTION. THIS SHEET PROVIDES AN OVERALL EXHIBIT OF EXISTING SITE CONDITIONS, IDENTIFIES FEATURES FOR DEMOLITION, AREAS TO BE PRESERVED AND PROPOSED STREET AND UTILITY CONNECTIONS. BOUNDARY CURVE TABLE Curve Length Radius Delta Tangent Chord Chord Bearing C1 194.86' 2548.78' 42249" 9748' 194.81' S 06'48'11" E C2 109.76' 600.00' 1028'53" 55.03' 109.61' S 14'14'02" E (Ted' `1�BR; � I I / 1 \ 1 '\ \ 20 0 20 40 60110 OWD MATCHLINE _SEE SHEET 4 BR) SCALE: 1`20'� I / I I I ( 1 \ 1 \ \ 18" TRE� I \ 1 F�1 O GO Z 0 IO N Q� R °Cw NCO Z 1 Q N U car� nLL',�co _j t]J a, DM z) (9 (- F,m 0w �> rzWO rnoJCa Fil `� z a > 2 d W U :rl co Q Z O a rr 00 w 0 co z O co w DE m W a O z � PyT H O+++p/Dt��•2 Jimmy L. Taggart Lic. No. 22841 0 �0.s+ 02/22/28 ti'�4' G SSl ONAL E� QLLf z >Q J J (n � O z _j J O o O } W Q z 0 J ( � � o O�90 U'� 0 o O O �0 LU rR � V (5 z � ~ o — w DRAFTER: AGF DESIGNER: AGF PRODUCTION: ZOD DATE: 2-22-23 SCALE: 1" = 20' WPO: -- FILE: 18.0025 SHEET: 3 OF 11 \ )\ \ \ \ \ \ 6" MPL \ \ \ \ RES/DENT/AL o -/ I \ \T BR) \ ZONING.' R4 / 1.90 ACRES / \ (TBR) (TBR) EX. 1REE LINATO PF�PERTY OUNDARY \ \ \ CrB) F \ I \ \ \ \ I l 8 —1" LORC 10" MPL �B) \ v TMP 61-167C \ \ \ \ \ \ `\ \ \ CF R) \ N/F WETSEL, \ I \ \ \ \ \ I S71'4 '17"E THOMAS D. ET AL PG 74 \ \ \ \ \ \ \ \ \ \ (TBR \ ( 427.58' / \ VACANT \ \ � \ \ \ \ \ � /} �-16" TREE- (TBR) / \ ZONING.' R4 \ \ \ \ PROPO ED PRO. ECTTREE 25.73 ACRES \ \ \ \ \ \ \ \ \\ _ PR SERVATI N AR 10" MPC- \ \ \ \ \ \ \ \ \ \ \ \ (TB \ \ \ \ I ALBEMARLE CC NTY Gs STEEP SLOP4REA \ \ \ \ \ \ \ I \ ( I EX. 4Y�REE LINE TO BuaE,� / PROPERTY BOUNDCFAB) I 1 \ \ \ \ \ oTdG\ \/ ® CISTERN ® \ \ \ \ \ \ \ \ I 1 I —36" OAK I / / / \ ® \ \ \ \ \ \ \ \ \ STR Al \� \ PROPOSED \ \ \ \ \ PEX COUNTY GIS I� SANITARY SEWER CONNECTION \ \ \ \ • \ I I I I \ / I / \ I / \ \ \ �/_, / \ —11 ,• TREE\ Ar1 TMP 61-170 l \ X. l I l EX. N/F CHARLOTTES�ILLE SO l l / \ \ \ \ \ \ 1 \ \ \ I I o I \ \ \ WALDORF SCHOOL INC / FIEF / I BASKETBALL f \ \ \ \ \ \ 1 \ I 1 I I I v I \ \ a I OB 4202 PG 453 ELEMENTARY SCHOOL 13�87NACRES I I 1 1 I\ I \ 1 \ �� \ \ \ \\ 1 1 / I I I 1 \ 1 1 \ 4 I I I I I I I \ \ I A \ \--18"TREE \ �� - A MATCHLINE - SEE SHEET 3 / 450.687 \ \ \ \ \ \ / ROVER 3 \ \ \ \ /X,k450.82 \ 12" MPL u TMP61-171 I o \ \ \ \ \ \ \ \ \ N/F STRUMLAUF, I BR) \ , \ \48 (pt3) \ \ STE�E DBN672 PG OR ONI 65FOX \ LEGEND TREE TO BE REMOVED (TBR) SOIL TYPE STEEP SLOPES (PRESERVED) �\ PROPERTY LINE RITICAL TR�E PREESERV TION AREA \ \ \ \ \ \ \ \ \ \ 1 \ l OVEN WIRE / \ \N "� \ \\ \ ) \ \ \ \ / I F RE / I � \ 0PQ0 \ \ 1 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ i \ \ I I I \I \ \ \ \ \\ \ \ \ \ \ \ OT\E: THIS SAN�IA RY�EWER LI EI[SN TPA9T THISPLAf \\ ��� NOTE: \ \E ND W L B� APPROVE & \ \ \ \ — \ I I \ NOT FOR CONSTRUCTION. THIS SHEET PROVIDES AN OVERALL I I CRIYICAL T EE x } \ \\ \ \ \ \ \ \ \ \ \ \REXHIBIT OF EXISTING SITE I I I I PRE ERVQTION I EA \ \ \ \ \ \ \ =Nf TRbCTED BY OT RS \ \ \o\ ` / / DEMOLITION, AREAS TO BE PRESERVED ED AND IDENTIFIES STREETOAND I 1 / \ \ \ \ \ \ \ \ ✓ \` UTILITY CONNECTIONS. I \ SEIDRATE DESIGN PLAN \ \ \ 1 I \ I \ \ \ \ \ \ \ \ �s ~ 20 0 20 40 60 SCALE: 1 `20' 0 GOz IlO N Q d) 0W Nu�O °fr Z �aNU Ovo U t~ W o � rn) Q C1 j Z U Lu W 0> (nz2 LL 0)°° 0z > a :rl d W (n _ U Q W z O co W 0 z 0 W DE m W Q 0 z DRAFTER: AGF DESIGNER: AGF PRODUCTION: ZOD epo��� 'LT H O+++p/Dt��21 2ilmrnyL. Taggart Lic. No. 22841 0 �O. 02/22/23 ti.�4' G SSl ONAL E�_ QLLJ > Q J C� � o m� z J O O } W Q z 0 J � ( O 06 u O 0 O O Eu W fr I--o Q z w DATE: 2-22-23 SCALE: 1" = 20' WPO: -- FILE: 18.0025 SHEET: 4 OF 11 /-.9000 / IIII���� I I 1 \ 1 I Alin - \ 1, 045 t TO ✓OHN 1 W. WARNER PKWY. U15 1 I S.R. 6�1 R/O ROAD E. I `A TS I I 30" PRESCRIPT/ICE AND — / / TMP 61-167C �o / X i X\ \ / - / I I K /W 1 I VARIABLE WIDTH R it TH ASWD. SET AL i DID / / I I I I IIII DB 1681 PG 174 VACANT 25O73NACRES X % / / ��� _ DC / I I o 1 III I II I % l FLOW DIRECTION I I UGT I I�j� 06 / / DID' ARROW (TYP) _ I I SAF / / / 440 k / i ST 2 / / / / I - I I I G OUP) I SAF / / / 435 44 ' 430 / / TS I I l l R I D SIGN El I III I I IIII I --rl ST 1 450 � O 1 I I / / I � 1 = I I III I / I �— ✓ 0 / • / / / I450- TMP 61-167A R/O COMMONS LLC. TS OBZONING. R4 5085 69 D77111 ACRES DID/ DC / � / Y MORTAR MIXING STATION J \ 3 V / I � � lk I I I CONCRETE WASHOUT FOR 460 DEDICATEDCONCRETEI \ I 460- �� TRUCK WASHOUT MORTAR / MIXING STATION / , wv I \ tl /440' / / / / / 0 / J CONTRACTOR SHALL PROVIDE CATCHMENT/ 450 / _ / k6 DEPRESSION TO COLLECT VEHICLE WASH WATERS AS WELL AS RUNOFF FROM DUMPSTER & MORTAR MIXING STATION. \ DUMPSTER SAF / / / \ I / _ _ — / J I RAIN AUGE G1 \ cl NOTE: / / i i�/ / / ��- -� / / / �/F / / I CONSTRUCTION TRAILER 1. CRITICAL SLOPES TO BE FENCED OFF PRIOR TO STARTING ABOVE GROUND g CONSTRUCTION. PROPOSED PRELIMINARY LIMITS OF DC , / / / / I FUEL CONTAINER GI DISTURBANCE IS CONCURRENT WITH, AND DOES NOT / / kg0 / _ / / / / p�- L ENCROACH INTO THE CRITICAL SLOPES. / / / / i / / / / \ / /7�^/ PORTA-JOHNS 2. SILT FENCING SHALL BE UTILIZED AT THE PERIMETER OF / / / / / / / / 460�/ / WASH RACK ALL CLEARING & GRUBBING AREAS. TREE PROTECTION / / — — / / / i✓ DD 470 / ` / SHALL BE IMPLEMENTED ADJACENT TO SILT FENCE ON / / / / / / / / / ` / f J UPHILL SLOPES WHERE APPLICABLE OR AS DIRECTED TO CE CA PRESERVE STANDS OF TREES THAT SHALL REMAIN. CRS 3. PRESERVED STEEP SLOPES (>25T.) TO BE MARKED IN THE O \ G FIELD BY CONTRACTOR AND REVIEWED BY THE ALBEMARLE TMP 61-170 COUNTY ESC INSPECTOR PRIOR TO LAND DISTURBANCE. s N/F CHARLOTTESVILLE _ / / 4'Ip / / — SF WALDORF SCHOOL INC \ a \ 4. NON -TEARABLE BARRICADE TAPE DELINEATING PRESERVED �/ /� / DS LD 4202 PG 453 STEEP SLOPES ARE MAINTAINED THROUGHOUT THE / // / ELEMENTARY SCHOOL r DAMAGED. �' / / ' c COURSE OF THE PROJECT T AND ARE TO BE REPLACED IF ZONING- R4 / , ~ / \ / 13.87 ACRES �� DC 5. NO PREMANENT OR TEMPORARY DISTURBANCE OF / TMP 61-171 / / � PRESERVED STEEP SLOPES IS PERMISSIBLE. / / / �,l / N/F STRUMLAUF, S STEVEN OR SONIA FOX ' DB 672 PG 165 / - 1 / / / 5' C R RESIDENTIAL 1 ^, EROSION CONTROL PLAN LEGEND ZONING- R4 / / —� / / EX. \ 1.90 ACRES \ Sqq��CER ' l I �\ —� 480 3.01 SAFETY FENCE SAF AIELD / 1 I / TMP 61-171 / \ MB N/F STRUMLAUF, _ \\ CONSTRUCTION O �/ L/ / — STEVEN OR SON/A FOX / J / — 3.02 ENTRANCE CE / � ` /, / � � � / � � I � / � \ f \ OB 672 PG 165 � CONSTRUCTION / 7� / / � — RESIDENTIAL— �PF 3.03 ROAD STABILIZATION CRS °� / / 0. -0 / l ZONING" R4 24. �s / I J ' a �: / 1.90 AC ES / TOPSOIL STOCKPILE I 3.05 SILT FENCE SF /� / 0. \ \ l 1 AREA 1 STORM DRAIN INLET l I l . 3.07 PROTECTION IP l 2I1 6 EX BASKETBALL 3.09 TEMPORARY DD }� \ �SOILS�IbROUP) COURT DIVERSION DIKE / i- J 3.13 SEDIMENT TRAP ST © I 1 3.31 TEMPORARY SEEDING SOILS BILIZTION ° ° / I < ( �- 3.36 BLANKETS &MATTING BIM 7 y� 3.39 DUST CONTROL DC DRAINAGE DIRECTION PHASE I LIMITS OF ❑ CLEARING uuuuuuuuum uuuuuuuuum uuuuuuuuum i *REFERENCE THE LATEST VERSION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK (VESCH) N, AW TMP 61-167C \ \ \ \ / I 2 N/F W=-L, i �-/ THOMAS D. ET AL / DS 1681 PG 174VACANT \ / \ ZONING- R4 \ 25.73 ACRES lF®791 GRADING & POND DESIGNED BY OTHERS � It SAF Lu rl — 1 30 0 3 '0--1 60 / 90 I I /\ \ I I I I \ \ / SCALE. 1" 3Q;\ I �. FOR DETAILS REGARDING INDIVIDUAL CONTROL MEASURES. I I / ' / / LEGEND SOIL TYPE = STEEP SLOPES (PRESERVED) PROPERTY LINE Uz U O V) z I^ V j 11 N a�2 8 2 fr Ow (n N N O U j rn m Z Z W co > � Z ° W �Z Q Q Z O co w 0 U) z O U) w m m w Q 0 Ci z o�4, PyT H O+++p/Dt��•2 Jimmy L. Taggart Lic. No. 22841 44 ��.s+ 02/22/23 G SSl ONAL E� Lu J LLI � _ z m J z O Q LL � 0 D- J Q Z J ( z 0 0 0 U>-- w > 0 ❑ W 06 O Q CD 0 � WLu DRAFTER: AGF DESIGNER: AGF PRODUCTION: ZOD DATE: 2-22-23 SCALE: 1" = 30' WPO: -- FILE: 18.0025 SHEET: 5 OF 11 � I — jL_ — \ \ 1, 045 t TO ✓OHN 1 \ W. WARNER PKWY. I 1 1 1 III � III I 1 I Illlll1\'I I � IIII1�t, I I4 \ RIO ROAD1 E. I 30' PRESCRIPTIVE AND � — \ RL4BL I WIDTH I /W\ 11\\ 1 I III Ili `� i S UGT 21 1 111VVV\``� I = I OILS G UP IP I III I I IP — — -R 9D SI I1 C 1 L— / IP \DC\ // � 1 I GROU I I \ \ I 7�/ / / �/ // 42 / / / / i / \ (S IP PS NOTE. 1. CRITICAL SLOPES TO BE FENCED OFF PRIOR TO STARTING / / CONSTRUCTION. PROPOSED PRELIMINARY LIMITS OF / / / / 40 DISTURBANCE IS CONCURRENT WITH, AND DOES NOT ENCROACH INTO THE CRITICAL SLOPES. / 2. SILT FENCING SHALL BE UTILIZED AT THE PERIMETER OF r / / / // / �— / \ D ALL CLEARING & GRUBBING AREAS. TREE PROTECTION / / / / / IP \ SHALL BE IMPLEMENTED ADJACENT TO SILT FENCE ON / p' UPHILL SLOPES WHERE APPLICABLE OR AS DIRECTED TO PRESERVE STANDS OF TREES THAT SHALL REMAIN. IP I 1 _ \ p 3 PRESERVEDFIELD BY STEEP SLOTORPES ( REVIEWED BY MARKED IN THE EMARLE / r / r r / / / / f / / / l / / / I PS COUNTY ESC INSPECTOR PRIOR TO LAND DISTURBANCE. 465 4. NON —TEARABLE BARRICADE TAPE DELINEATING PRESERVED STEEP SLOPES ARE TO BE MAINTAINED THROUGHOUT THE / / f _ 460 COURSE OF THE PROJECT AND ARE TO BE REPLACED IF / DAMAGED. / / _/ / J err; / 48�/ / / _ / RAINING WALL / / 5. NO PREMANENT OR TEMPORARY DISTURBANCE OF / / J (BY OTHERS) SA PRESERVED STEEP SLOPES IS PERMISSIBLE. .,,,( TMP 61-170 � � /— /(S�OI•LS/q1l0U#4 NAF CHARLOTTESVILLE EROSION CONTROL PLAN LEGEND / // / WALDORF D8 4202CPG0O453 C J / ' / / ' / / P ELEMENTARY SCHOOL \ ZONING.- R4 � � � / 470" 3.01 SAFETY FENCE / 13.87 ACRES \ / / / / / / ' CONSTRUCTION /� 1 3.02 ENTRANCE CE CONSTRUCTION cas / / ' —/ / / / -7 4 �� C R 3.03 ROAD STABILIZATION CRS �( / \ / / 3.05 SILT FENCE / 3.07 STORM DRAIN INLET IP / / ( —� �� / / i 1 NIF STRUMLAUF, UPS PROTECTION / / / 1 / / / �f \ / J STEVEN OR SON/A FOX /-UP V 3.18 OUTLET PROTECTION OP / / / / / / — DB 672 PG 165 / / J / / RESIDENTIAL I 1 ( GwAX3 TEMPORARY oo / / / O• b / / J — J \ \ �- -- ` ZONING.- R4 3.09 DIVERSION DIKE DD / / % / / 1.90 ACRES / TOPSOIL STOCKPILE I 1 — L AREA 00 3.13 SEDIMENTTRAP 3.32 PERMANENT SEEDING PS Ps I� / 21 I / ° I J\ (SOIL GROUP)- 3.35 MULCHING 1 SOILSTABILIZTION 3.36 BLANKETS &MATTING l J / F�3.39 DUST CONTROL DC / I — ` I I ' / I I \ J— ❑PHASE 2 LIMITS OF CLEARING & GRUBBING �uuuuuuuuuu uuuuuuuuum uuuuuuuuum i *REFERENCE THE LATEST VERSION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK (VESCH) FOR DETAILS REGARDING INDIVIDUAL CONTROL MEASURES. / 4001111 1 / Il LEGEND SOIL TYPE = STEEP SLOPES (PRESERVED) PROPERTY LINE B/M GRADING & POI DESIGNED BY OTF I TMP 61-167C \ - N/F WETSEL, THOMAS D. ET AL DB 1681 PG 174 VACANT ZONING.- R4 25.73 ACRES - L 1 IP / MmvVw mmlll= -- r-� -� ��A►■ ICE 1. i`lm w`ms.mil PS PS Ll — 1 -40 Of 3� 60 90 Uz i--1 �z I^ V j 11 N fr dOw 0 Lj (n N NO � z � § O U Q J rn m ZW co > Z ° x LL 0)°° 0 Z Q �1--�fr ir > _ 1� d w U co �a fy z O a rr co w 0 z O U) W DE 0 w a O Z , PyT H G+++p/Dt��21 Jimmy L. Taggart Lic. No. 22841 44 02/22/28 ti4� G SSl ONAL E� LLJ = L-i r n Q � V J < LLJ z m J z O Q Q LL z� C z 0 z 0 0 O U ~ c/) � z U'o 0 J LLJ O Q 06 w z � O (5 0 Q m � � DRAFTER: AGF DESIGNER: AGF PRODUCTION: ZOD DATE: 2-22-23 SCALE: 1" = 30' WPO: -- FILE: 18.0025 SHEET: 6 OF 11 *NOTE: SEDIMENT TRAP SHALL NOT BE REMOVED BEFORE COUNTY INSPECTOR HAS DEEMED STABILIZED. CROSS SECTION OF OUTLET OUTLET (PERSPECTIVE VIE **COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5. ST SEDIMENT TRAP NOT TO SCALE WIDESCREEN CONCRETE BLOCK E / _ i *GRAVEL FILTER �- --try U➢�Igb`R�PI WIRESCREEN RUNOFF WATER WITH SEDIMENT OVERFLOW FILTERED WATER =III=III=i=.. DROP INLET SEDIMENT -z WITH GRATE SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE HEAVY FLOWS ARE EXPECTED AND WHERE AN OVERFLOW CAPACITY IS NECESSARY TO PREVENT EXCESSIVE PONDING AROUND THE STRUCTURE. * GRAVEL SHALL BE VDOT #3, #357, OR #5 COARSE AGGREGATE BLOCK AND GRAVEL IP DROP INLET PROTECTION Ir NOT TO SCALE 1. SET POSTS AND EXCAVATE A 4"X4" TRENCH UPSLOPE ALONG THE LINE OF POSTS / G FLOW 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH SF NOT TO SCALE EXISTING GROUND VDOT#1 COURSE / AGGREGATE J *MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS OPERATION FILTER CLOTH REINFORCED CONCRETE 2. STAPLE WIRE FENCING TO THE POSTS 4. BACKFILL AND COMPACT THE EXCAVATED SOIL FLOW EXTENSION OF THE FABRIC AND WIRE INTO THE TRENCH FILTER FABRIC III WIRE A 5EXISTING J :1 'PAVEMENT _-_-__ L A � FILTER CLOTH .-- 6" MIN 7:7" A SIDE ELEVATION g J I '-POSITIVE DRAINAGE TO SEDIMENT TRAPPING DEVICE SECTION A -A z 2 fi EXISTING PAVEMENT zL M 0 DRAIN SPACE g-2�7�STRUCTION ENTRANCE DETAIL CALE 3.05-1 PERSPECTIVE VIEW PERSPECTIVE VIEW PLASTIC FENCE PERSPECTIVE VIEW METAL FENCE SAF SAFETY FENCE DETAIL NOT TO SCALE GRAVEL FILTER* 2" RUNOFF WATER WIRE MESH FILTERED WATER FIF 9 a II LII - SEDIMENT A. , - P. CONCRETE GUTTER 12" `CURB INLET SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LIKELY TO CAUSE INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED AREAS. *GRAVEL SHALL BE VDOT #3, #357, OR #5 COARSE AGGREGATE GRAVEL CURB INLET PROTECTION DETAIL 3.02-2 NOT TO SCALE 3.01-1 Drainage Area (ac): 1.301 Wet Storage Req: 87.10 cy Dry Storage Req: 87.10 cy Total Storage Req: 17420 cy Elev Side 1 Side 2 Area Vol (cf) Vol (cy) Low Point: 430.0 488.7 1:1 Side Slope Min wet wet Actual Side Slope 2 NPE 433.0 1240.2 2593.4 96.1 2:1 Side Slope Min dry dry Actual Side Slope 2 Bottom of Weir: 435.0 1902.9 3143.1 116.4 Weir Length (ft) 7.8 Weir Height (ft) 2.0 Top of Berm 436.00 Top of Weir 435.00 Bottom of Weir 433.0 0.0 0.0 Low Point 430.0 0.0 0.0 Berm Width (ft) 2.5 Drainage Area (ac): Wet Storage Req: Dry Storage Req: Total Storage Req: Low Point: 1:1 Side Slope NPE 2:1 Side Slope Bottom of Weir Weir Length (ft) Weir Height (ft) Top of Berm Top of Weir Bottom of Weir Low Point Berm Width (ft) SEDIMENT TRAP 1 CALCULATIONS 2.60 174.20 174.20 348.40 Elev Side 1 428.0 432.0 tS1.1111 15.6 3.0 436.00 435.00 432.0 428.0 3.0 Side 2 Area Vol (cf) Vol (cy) 883.6 wet wet Actual Side Slope 1 1478.9 4725.0 175.0 dry dry Actual Side Slope 2 2613.1 6138.0 227.3 1 rr rr rr rr SEDIMENT TRAP 2 CALCULATIONS COMPACTED SOIL �z FLOW =III=III=III=III=III=III=III=III= DD TEMPORARY DIVERSION DIKE NOT TO SCALE A 3do do PLAN rs1 PE OUTLET TO FLAT 3EA WITH NO DEFINED 4NNFI 0% a _ J- d SECTION A -A FILTER CLOTH KEY IN 6"-9": RECOMMENDED FOR ENTIRE PERIMETER A 3d,(MIN.) PIPE OUTLET TO WELL DEFINED CHANNEL La it 0%y SECTION A -A FILTER CLOTH KEY IN 6"-9": RECOMMENDED FOR ENTIRE PERIMETER NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION BASKET, OR CONCRETE. 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING PLATES 3.18-3 AND 3.18-4. 3. d - 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 INCHES. Pipe Diameter 10-yrFlow Apron Length Upstream Width Downstream Width Class (in) (cfs) (ft) (ft) (ft) OP1 24 7.82 11 6 8.75 Class OUTLET PROTECTION NOT TO SCALE 3.18-1 U 0 V) z C4 0 (,Do N -411 a�2 R °C w CMu� 0 az 1QNU m0co two U z z-j rn m z� ()CO m w 0> air-z� 90 w rn ir a Q 1� IL W U Q z O a rr co w 0 co z O co > w ir m W Q O Z QI � PyT H O+++p/Dt��2• 97 Jimmy L. Taggart Lic. IN 22841 0 02/22/29 G SSl ONAL E� v J LLJ Q Ljj W z02 O Q O i Z Q z O a o U 11 � 5z Lij U �_ 0 L1J OQ W z Cf)~ O 0 � O O Ir L J AGF DATE: 2-22-23 SCALE: ---- WPO: FILE: 18.0025 SHEET: 7 OF 11 TEMPORARY SEDIMENT TRAP MIN I TO W T (W) 'N"QUIRE'D FORSEDIMENT TRAP—' EMBANKMENTS ACCORDING O G O E A (F1w1_,_7Er1T')' H Ho W 1.5 0.5 2.0 2.0 1.0 2.0 2.5 1.5 2.5 3.0 2.0 2.5 ti• 3.5 2.5 HO H 4.0 3.0 3.0 3.0 4.5 3.5 4.0 5.0 4.0 11 1 4.5 EXCAVATED AREA 1 MAX. DEPTH = 4' ORIGINAL GROUND ELEV. [•3i1�1:Z�7�%��I•��1�7 STAKES, STAPLES, & PINS FOR INSTALLATION OF TREATMENT - 2 SOIL S TABILIZA TION MATTING 3-1 /4" 2 DIA. WASHER 16" Kr MIN. 3/1V DIA. 1" STEEL PIN 1) 1x4 TRIANGULAR SURVEY STAKE - MINIMUM 10" IN LENGTH. PLACEMENT OF THE STAKE 6" ACROSS THE FLOW OF THE WATER IS THOUGHT TO RTTHE VELOCITM ALL EFFECT" TO HELP STAKE PIN SLOW 2) 11 GAUGE STEEL - MINIMUM 1" WIDE BY G' 11 GAUGE STEEL IN LENGTH STEEL STAPLE - 2"x8" STAPLE 6"x1"xV STAPLE MAY BE REQUIRED IN CERTAIN SOIL CONDITIONS. STAPLE 3) STEEL PINS - 3/16 DIAMETER STEEL PIN BY 19' IN LENGTH WITH A 2" DIAMETER WASHER ON TOP. (SEE ILLUSTRATION) Source: Product literature from Greenstreak, Inc. Plate 3.36-3 1992 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 Tall Fescue 95-100010 - Improved Perennial Ryegrass 0-5% - Kentucky Bluegrass 0-5% High -Maintenance Lawn 200-250 lbs. - Kentucky 31 or Turf -Type Tall Fescue 100% General Slope (3:1 or less) - Kentucky 31 Fescue 128 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop * 20 lbs. 150 lbs. Low -Maintenance Slope (Steeper than 3:1) - Kentucky 31 Fescue 108 lbs. - Red Top Grass 2 lbs. - Seasonal Nurse Crop * 20 lbs. - Crownvetch * * 20 lbs. 150 lbs. * Use seasonal nurse crop in accordance with seeding dates as stated below: February 16th through April ...................... Annual Rye May 1st through August 15th ................... I . Foxtail Millet August 16th through October ...................... Annual Rye November through February 15th ................... Winter Rye ** 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 30lbs./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. 1992 3.36 TYPICAL TREATMENT-2 SOIL STABILIZATION MATTING INSTALLATION SOIL STABILIZATION MATTING SHALL BE USED IN CONJUNCTION WITH RIPRAP AT OUTLET END OF PIPE. ENTRENCH EDGES OF MATERIAL 6- CHECK SLOTS TO BE CONSTRUCTED AS PER ~I I I IL 5' MANFACTURERS RECOMMENDATIONS. 1 TRANSVERSE CLOSED CLOSED CHECK SLOT FLOW UPSTREAM AND DOWNSTREAM TERMINAL TRANSVERSE OPEN CHECK SLOT Source: VDOT Road and Bridge Standards Plate 3.36-4 1992 3.07 SILT FENCE DROP INLET PROTECTION 2 X 4' WOOD FRAME DROP INLET GRATE WITH 1.5' MAX. FRAME - 3' MIN. GATHER -mil EXCESS TCCORNERS PERSPECTIVE VIEWS STAKE FABRIC f(I2 1' MIN. 'A ELEVATION OF STAKE AND FABRIC ORIENTATION DETAIL A SPECIFIC APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER THAN 5%) WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT EXCEEDING 1 C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS IN STREET OR HIGHWAY MEDIANS. Source: N.C. Erosion and Sediment Control Planning and Design Manual, 1988 Plate 3.07-1 1992 3.36 TYPICAL TREATMENT - 2 SOIL STABILIZATION MATTING SLOPE INSTALLATION '"^�'4vMN11M FILL SLOPE SECTION`S SOIL STABILIZATION MATS SHOULD BE INSTALLED VERTICALLY Q ✓' S• NOTE, SLOPE SURFACE DOWNSLOPE FOR BEST RESULTS. Q/ SHALL BE SMOOTH % i AND FREE OF Q ROCKS, LUMPS OF i DIRT, GRASS AND Q j STICKS. MAT SHALL ./ 5' j BE PLACED FLAT i 17 ON SURFACE FOR PROPER SOIL CONTACT. 42. J � 4 E Q Q DIRT SHALL BE ' - TAMPERED PRIOR TO LAYING TOP LAP OVER TOE BERM MAINTAIN SLOPE ANGLE TRENCH INTO BERM AND PROGRESS DOWNSLOPE SLOPE LINING SLOPE LINING TOP CUSLT SLOPE (WET SLOPE) (DRY SLOPE) TREATMENT - 2 POLYPROPELYENE 2• NON -WOVEN (NEEDLE PUNCHED) C�7HE TREATMENT - 2 GEOTEXTILE FILTER �L'1ER0SOURCOCf1ER) CLOTH BEHIND 4• AB 1� APO TREATMENT - 2) SOIL .��� BOTTOM OF FILL SLOPE Y BOTTOM OF CUT SLOPE BOTTOM OF CUT SLOPE W OR SHOULDER BREAK POINT Source: VDOT Road and Bridge Standards Plate 3.36-5 U O z 0 Imo] N sow W N p _N am U) 1: OQ J a 0] z� 8W>�� > LU W W W F+1 O j = i w U a z O a C) U) W 0 In z O U) w o= m W a 0 0 z -LL _LU_ DRAFTER: AGF DESIGNER: AGF PRODUCTION: ZOD ��O���PyTH OF/Dr��� U C)? �V 9 Jimmy L. Taggart Lic. No. 22841 44 �O.o�, 02/22/23 ���'� SSI ONA' 8� v J J LLI VJ w z 0 0 Z gz o O 0 I- W V) D- U C/) p LU 0 U) 06 W z ~ O r� r^ 0 If LLJ DATE: 2-22-23 SCALE: ---- WPC: FILE 18.0025 SHEET: 8 OF 11 z I I I 1 0 1 I I 1 I I \ TMP 61-170 \ \ II WAR LDORFSCHOOL INC EDEMENTAR SCHOOL ZONING." R4 \ I � 13.87 ACRES o\ TMP 61-167C NIF TH ASWD. ET AL J IDB 1681 PG 174i / VACANT ZONING. / 25.73 ACRES 4.35AC TMP 61-171 \ 1 I I) 1 I <\J� \ J N/F AUF, OR SO STEVEN OR SON/A FOX l l OB 672 PG 165 \ I I I 1 \ \ \ RESIDENTIAL i ZONING." R4 \' 1.90 ACRES Shrub �- L 1 EM Shru --� IF®7_91.0� �o S ub \ AL�OM HO �-0 \ �H4-� HO � \ \ H0 - 1,045 i- TO ✓OHN HO S.R. 631 W. WARNER PKWY. RIO ROAD E. I _ 30' PRESCRIPTIVE AND VARIABLE WIDTH R/W 4.13 HO / 3 OV021 0/ J PRE -DEVELOPED DRAINAGE AREA MAP _7' , ViA 1A� 1111 /l \ I TMP 61-170 LLE WALDORFRSCHOOL u/INC `\ ? DB 4202 PG 453 \� ELEMENTARYSCHOOL ZON/N.13.87 ACRES \�2/3r15/Ja ( \ \ \ \ \\ 0.09 AC 0.12 AC y C: 0.7 0.10 AC C: 0.6 I 0.09 AC C:0.4 1 0.09 AC C:0.7 / / \ 220 0,06 AC / C0.9 22 2240.08 AC I r / 9I C: 0.75 -32 TMP 61-171 \ 0.11 AC ) \ N/F STRUMLAUF, C: 0.75 STEVEN OR SONIA FOX o.07 AC DB 672 PG 165 RESIDENTIAL I 1 \ \ ZONING.- R4 1.90 ACRES 0.25 AC Z \ � \z PF@ / 0.24 AC C:.45 4 0.12 AC C: 0.6 PF®29 58" H° \ Od ?J 0/N _ / �� ✓- / / 0.06 AC C: 0.6 Balm /M/_ 0f-/0/(, N/F WETSEL, THOMAS D. ET AL 0.02 AC DS 1681 PG 174 C: 1 VACANT ZONING." R4 0.02 AC C:1 f 0.02 AC , C: 0.8 0.08 AC �I 1 C: 0.3 I lt maw ® S. R. 631 RIO ROAD E. 30' PRESCRIPTNE AND VARIABLE WIDTH R/W POST -DEVELOPED DRAINAGE AREA MAP 1, 045 t TO ✓OHN W. WARNER PKWY. 50 0 50 100 150 SCALE: 1`50' O V)I^z V 5 Ct N lt�� 02 0 W �Lu N 0 O CISa Z Q N U car CR �, O= WOQ 9J�00 tr`JIJ• Z W C'3 8U a W co 0) U_ °° 0 Z Q fr jr > _ 1� d W U �a z O rr C) W 0 U) z 0 U) W tr m W Q 0 0 z PyT H O+++p/Dt��21 Jimmy L. Taggart Lic. No. 22841 44 �0.s+ 02/22/28 G SSl ONAL E� w z � Q r n Q ___J w z m� Q z O0 � w Q z �z > ° O � U UF 0 Q O J Q LLJ rr `f) O GO 0 DRAFTER: AGF DESIGNER: AGF PRODUCTION: ZOD DATE: 2-22-23 SCALE: 1" = 50' WPO: -- FILE: 18.0025 SHEET: 9 OF 11 CLEAR ALL (Ctrl+Shift+R) Post -Development Requirement for Site Area LAND COVER SUMMARY — POST DEVELOPMENT final results SL-1 NOTES: 1. BARS 12 8" C-C TYP. L I] I 30" DIAMETER IIIIII IIIIT I I T TTI-1 IIIIT I I I PLAN B L STRUCTURE SIZE AND WALL THICKNESS VARIES #5 BARS 0 B" C-C TYP. I B TIT IAA T R I T PLAN �a m CLASS A3 CONCRETE CLASS A3 CONCRETE SECTION A -A SECTION B-B OF -EET BELOW 2. THE COST OF THE SL-1 IS INCLUDED IN THE COST OF THE STRUCTURE. 3. ACCESS OPENINGS ARE TO BE STAGGERED FROM ONE SIDE OF STRUCTURE TO THE OTHER WHERE APPLICABLE. STEPS ARE TO BE STAGGERED ACCORDINGLY. 4. SAFETY SLAB MAY BE CAST -IN -PLACE OR PRECAST. CAST -IN -PLACE CONCRETE TO BE CLASS A3 (3000 PSI). PRECAST CONCRETE IS TO BE A4 (4000 PSI). REINFORCING STEEL TO BE IN ACCORDANCE WITH AASHTO M31. 5. ACCESS OPENINGS MAY BE 30" DIAMETER OR 30" SQUARE. WHEN STRUCTURE WIDTH IS LESS THAN 30" THE ACCESS OPENING SHALL BE RECTANGULAR (STRUCTURE WIDTH BY 30" LONG). SEE CAST IN PLACE DRAWINGS FOR FURTHER DETAILS M 5 BARS a 8" C-C TYP. TYPICAL PRECAST UNIT ROAD AND RIDGESTANDARDS TYPICAL CONCRETE SAFETY SLAB FOR DROP INLETS, SPECIFICATION REFERENCE SHEET 1 OF 1 I REVISION DATE MANHOLES AND JUNCTION BOXES 302 106.14 VIRGINIA DEPARTMENT OF TRANSPORTATION TYPICAL INSTALLATION AT END OF PIPE STAKING DETAIL 3'OVE3 BETWEENEN ROLLS * TRANSVERSE CLOSED CHECK SLOT TRANSVERSE CHECK SLOT TO BE CONSTRUCTED IN ACCORDANCE WITH THE MANUFACTURER'S RECOMMENDATION FOR PREFERRED INSTALLATION. * TRANSVERSE OPEN CHECK SLOT EC-3 �„ STARES OR PINS J_ 3' O.C. �--3" OVERLAP SLOT 25' O.C. 5'-0" NOTES( 1'-2" 1. STAKES SHALL BE WOOD OR METAL AS RECOMMENDED BY THE MANUFACTURER AND SHALL BE A MINIMUM OF 12" IN LENGTH. IN SANDY SOILS METAL STAKES A MINIMUM OF 18" IN LENGTH SHALL BE USED. 2. SOIL STABILIZATION MAT TYPE A AND B ARE TO BE IN ACCORDANCE WITH THE APPROVED PRODUCTS LIST. 3. SOIL STABILIZATION MAT SHOULD BE INSTALLED TO THE SHOULDER BREAK POINT OR EXISTING GROUND .. THEN EMBEDDED 6". MATERIAL ON BOTH SIDES OF THE DITCH SHALL BE INSTALLED TO THE SAME `i ELEVATIONS. 4. IF MORE THAN 3 LINES OF MATERIAL ARE REQUIRED PARALLEL TO THE CE OF THE DITCH, MATERIAL SHALL . .. BE INSTALLED PERPENDICULAR TO THE CENTER LINE OF THE DITCH, STARTING AT THE LOWEST CL ELEVATION OF THE DITCH. 5. FOR SOURCES OF APPROVED MATERIALS SEE VDOT'S APPROVED PRODUCTS LIST FOR ST'D. EC-3, UPSTREAM AND DOWNSTREAM TERMINAL TYPE A OR B. SHEET 1OF 3 SPECIFICATION REFERENCE SOIL STABILIZATION MAT 606 DITCH INSTALLATION TYPE A OR B 244 REV 8/07 VIRGINIA DEPARTMENT OF TRANSPORTATION 114.03 TSHAPE TO BE BEVELED H WITH MORTAR _ DO NOT BEVEL INVERT- L NOTES: 1. "H" MAY BE REDUCED UNTIL "X" REACHES A MINIMUM OF 4" WHERE ENDWALL WOULD PROTRUDE ABOVE SHOULDER LINE. IN NO CASE SHALL TOP OF ENDWALL PROJECT ABOVE FILL SLOPE, DITCH SLOPE, OR SHOULDER. 2. THIS ITEM MAY BE PRECAST OR CAST IN PLACE. 3. ALL CAST IN PLACE CONCRETE TO BE CLASS A3. FOR PRECAST SEE SHEET 101.02. 4. THIS STANDARD TO BE USED WITH STRAIGHT CROSSINGS AND ALL SKEWS (0"TO 45"1. 5. HEADWALL TO BE BEVELED IN ALL AREAS EXCEPT WHERE A CONFLICT WITH INVERT OR WINGWALLS OCCUR. EW-1 ENDWALL FOR CIRCULAR PIPE DIAMETER OF PIPE CULVERT 12" 15" 18" 21" OR 24" 27" OR 30" 33" OR 36" A 0'-6" 0'-8" 0'-9" 0'-11" T-0" T-0" B 0'-11" 1'-1" T-3" 1'-6„ 1'-91, 2'-0" C T-4" T-7" V-91. 2'-2" 2'-6" 2'-9" D T-O„ T-3" 1'-6" 2'-0" 2'-8" 3,-0" F 0'-6„ 0,-8„ O.-B.. 0'-91, 0'-9„ 0'-9„ H 2'-3" 2'-11" 3'-2" 3'-9" 4'-3" 41-911 L 4'-0" 5'-0" 6'-0" 8'-0" 10'-0" 12--0" a 0,-11/4" 0'-1%" 0'-2„ 0'-21y2" O'-3114" 0'-3Y," b 0'-1" O'-11/4" 0,-11�2, 0'-2" 0'-21/2" 0'-3" CUBIC YARDS OF CONCRETE CONC. PIPE 0.241 0.492 0.697 1.319 2.067 2.947 C.M. PIPE 0.257 0.521 0.739 1.398 2.198 3.145 EW-LIA -L 1� 6. BEVEL EL E SC REQUIRED ON THE HEADWALL AT THE INLET END OF THE CULVERT (WHERE THE FLOW ENTERS THE CULVERT). 7. HEADWALL AT THE OUTLET END OF THE CULVERT MAY BE EITHER SQUARE EDGE OR BEVEL EDGE. 8. ON SHALLOW FILLS, WHERE ENDWALLS ARE 1 ' OR LESS BELOW SHOULDER LINE, THE TOP OF THE ENDWALL SHALL BE CONSTRUCTED PARALLEL TO THE GRADE OF THE ROAD. 9. Y,' CHAMFER MAY BE PROVIDED ON ALL EDGES AT MANUFACTURER'S OPTION. EW-1A ENDWALL FOR ELLIPTICAL PIPE SIZE OF ELLIPTICAL PIPE CULVERT (SPAN x RISE) 23"x14" 30"X19" 34"x22" 38"x24" 42"x27" 45"x29" 49"x32" 53"x34" A 0'-8" 0'-9.. 0'-10.. 0'-11.. 0'-11.. 1'-0.. 1'-0" T-0" B T-2" T-5" 1'-6" V-8" 1'-9" 1'-10" T-11" 1'-11" C 1'-8" T-11" 2,-1" 2'-4" 2'-5" 2'-7" 2'-8" 2,-9" D 1'-2" 1'-7" 1'-10" 2'-0" 2'-3" 2'-5" 2'-8" 2'-10" F 0'-8„ 0'-8„ W-9.. 0'-9„ 0'-9„ 0'-9„ 0'-9„ 0'-9„ H 2'-10" 3'-3" 3'-7" 3`9"' 4'-0" 4'-2" 4'-5" 4'-7" L 5'-5" T-2" 8'-6" 9'-2" 10'-2" 10'-11" 12'-1" 12'-11" S T-11" 2'-6" 2'-10" 3'-2" 3'-6" 3'-9" 4'-1" 4'-5" a 0'-2%2" 0'-31/4, V-31�2, 0'-4„ 0'-41/2" 0'-4Y2' 0'-5" 0'-5%2" b 0'-2„ 0'-21�2" O'-2Y4" 0'-3„ O'-31�2" 0'-3314" 0'-4" O'-41�2' CUBIC YARDS OF CONCRETE CONC.PIPE 1 0.502 0.855 1.236 1 1.500 1 1.811 2.101 1 2.512 2.801 SPECIFICATION REFERENCE STANDARD ENDWALL FOR PIPE CULVERTS 105 12"-36" CIRCULAR AND 23"04"-53"x34" ELLIPTICAL PIPES 302 VIRGINIA DEPARTMENT OF TRANSPORTATION 101.01 1992 3.18 PIPE OUTLET CONDITIONS A A 3do------------ = = L o PIPE OUTLET TO FLAT AREA WITH NO DEFINED CHANNEL PLAN VIEW L a II d SECTION A -A FILTER CLOTH KEY IN 6"-9"; RECOMMENDED FOR ENTIRE PERIMETER A A 3do (MIN.) do PIPE OUTLET TO WELL IMF DEFINED CHANNEL PLAN VIEW L a 0 % -. I d SECTION A -A FILTER CLOTH KEY IN 6"-9': RECOMMENDED FOR ENTIRE PERIMETER NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION BASKET, OR CONCRETE. 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED USING PLATES 3.18-3 AND 3.18-4. 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT LESS THAN 6 INCHES. Source: Va. DSWC Plate 3.18-1 III - 157 FHU� 1� 0 () Z Cn Imo) N ti m � Ow U1N88 _N wz U)*N � U)� ' 0 O rl� co Q ] J m < ZC7 0LWU a -` M w w LU (V1 O > W Z M FrjL U (nJ = U- (n F+1 O = j a U U a O I� Z O a C) U) w 0 U) Z O U) w m w Q 0 O z DRAFTER: AGF DESIGNER: AGF PRODUCTION: ZOD OF ��O���PyTH Jimmy L. Taggart Lic. No. 22841 �4 02/22/23 0�$� SSIONAL 8� W J - I W z m J OLL zz J 0 Q LU O U) U '� U 0 O LL I rr 0 DATE: 2-22-23 SCALE: ---- WPO: FILE 18.0025 SHEET: OF 11