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HomeMy WebLinkAboutWPO202100010 Plan - VSMP 2022-09-20SITE DATA OWNER/DEVELOPER : NEW BELVEDERE INC 610 WEST RIO ROAD CHARLORESOLLE, VA 22901 PLAN PREPARER: ROUDABUSH, GALE, & ASSOCIATES 914 MONTICELLO ROAD CHARLOTTESVILLE, VA. 22902 (434)-977-0205 TAX MAP PARCEL No: 062A3-00-000 0100 PARCEL AREA: 95.753 ACRES GWAY BLA DB 5294-417 ( ) ZMA PHASING: PHASE Ill - BLOCK 10" BLOCK 10 AREA: 0.048 ACRES LOT 246 DB 5289-658 0.070 ACRES LOT 245 DB 5289-658 0.177 ACRES RESIDUE TMP 61-16OR7 DB 5289-658 31.472 ACRES TMP 62-2C GWAY BLA DB 5294-417 61.843 ACRES POR710N OF 7MP 62AJ-1 GWAY BLA DB 5294-417 9361 ACRES TOTAL BLOCK 10 AREA ZONING: NEIGHBORHOOD MODEL DISTRICT PER ZMA-2004-0007 CURRENT USE VACANT PROPOSED USE: RESIDENTIAL MAGISTERIAL DISMICk RIO MAGISTERIAL DISTRICT CRITICAL SLOPES: PRESERVED & MANAGED SLOPES PER ALBEMARLE COUNTY GIS CONSERVA77ON & PRESERVATION AREAS PER ZMA WA7ERSHED: SOUTH FORK RIVANNA (BELOW RESERVOIR) BOUNDARY SOURCE PLAT DIVISION OF DUNLORA" PREPARED BY MY MORRIS FOSTER, LAND SURVEYOR, DATED NOVEMBER 1, 1965, REVISED DECEMBER 20, 1985, RECORDED AT DB 875 PG 331. ROUDABUSH, GALE & ASSOCIATES 2020, D65294-417, & DB5289-658. TOPOGRAPHY.., BARE EARTH OEM FROM LOAR, SOURCE VGIN (2016). POINT CLOUD FIL7ERED BY RGA. BENCHMARK. PK NAIL SET IN SIDEWALK AT 7HE CORNER OF BELVEDERE BLVD AND FOKER STREET ELEV = 476.50 DATUM HORZ: NAV9 88, WERk NAVD83 FLOODPLA/N: THIS PROJECT IS PAR 77ALLY LOCATED WITHIN ZONE X" AS SHOWN ON FLOOD INSURANCE RATE MAP. COMMUNITY PANEL NUMBER 510003C 0279 D. EFFEC77VE DA7F FEBRUARY 4. 2005. STREAM BUFFER. THE 100' STREAM BUFFER IS LOCATED ON TMP 62-1C WHICH IS WITHIN THE BLOCK 10" AREA. THE SUBJECT PROPERTY IS NOT LOCATED WITHIN AN AGRICULTURAL -FORESTAL DISTRICT, THIS SI7F IS NOT LOCATED WI7HIN THE WATERSHED OF A PUBLIC WATER SUPPLY RESERVOIR. I ! In u!I !un,.r 'Ili ill � Ilu u l l l v L.�ii I I Trap qi l Il:;ll:lucc. !al a i Ili i Uudnil m!u:' I l u'al.:,l Im, Liaanl!I!'I� I'I:I ) 6 •'': III'.; 'I' II. III mr. IIIIvo:II! ;II II! i I I ;II . i i I III. I I:II�II', III. ! ' I I Gill IIII I li : I •,., I I I :I •'I�I II� Ali I IL ' Iril I III; • II I�l I II l ' RIO MAGISTERIAL DISTRICT, COUNTY OF ALBEMARLE, VA G C 7 EXISTING INTERMEDIATE CONTOUR EXISTING INDEX CONTOUR PROPOSED CONTOUR EXISTING EDGE OF PAVEMENT PROPOSED EDGE OF PAVEMENT EXISTING CURB AND GUTTER PROPOSED CURB AND GUTTER VICINITY MAP SCALE: 1 "=1000 FEET EX.C&G CG-6 LEGEND EX. 15" RCP EXISTING STORM SEWER o : 1 15" RCP PROPOSED STORM SEWER -6m- I I EXISTING SANITARY SEWER —s —S —s — PROPOSED SANITARY SEWER — S — s — S — PROPERTY LINE EASEMENT LINE CENTERLINE — LIMITS OF CLEARING AND/OR GRADING ■■■■■■■■■■■■■■■■ EXISTING SPOT ELEVATION PROPOSED SPOT ELEVATION +12.0 EXISTING TREE DRIP LINE EXISTING TREE PROPOSED TREES OAK u_y EXISTING WATERLINE PROPOSED WATERLINE EXISTING FIRE HYDRANT PROPOSED FIRE HYDRANT EXISTING WATER VALVE PROPOSED WATER VALVE PROPOSED WATER METER EXISTING REDUCER PROPOSED REDUCER HANDICAP RAMP (CG-12) DENOTES LOCATION OF STD. VDOT CG-12 AND/OR JURISDICTIONAL STANDARD RAMP CONSTRUCTION PARKING INDICATOR INDICATES THE NUMBER OF TYPICAL PARKING SPACES BENCHMARK SOILS BOUNDARY PROPOSED STREET NAME SIGN EXISTING SIGN PROPOSED SIGN SANITARY MANHOLE IDENTIFIER STORM DRAIN STRUCTURE IDENTIFIER 18 c ASSOCIATED PLANS WITH THIS PARCEL: 1.1. PRELIMINARY SUBDIVISION PLAT (SUB 2 1 (S 020-00 39) 1.2. INITIAL SITE PLAN (SDP-2019-79) 1.3. ROAD & UTILITY PLAN 1.4. STORMWATER MANAGEMENT PLAN (THIS PLAN) 1.5. RETAINING WALL DESIGN PLANS (TO BE SUBMITTED) CONTRACTOR'S RECORD DRAWING CERTIFICATION STATEMENT: (REQUIREMENTS) SEE SHEET 2 FOR RECORD DRAWING THIS HAND MARKED SET OF DRAWINGS HAS BEEN REOLINED" TO PROVIDE AN ACCURATE DETAILED RECORD OF ANY SUBSTANTIVE CHANGES TO THE APPROVED DESIGN DRAWNGS ANY ITEMS NOT REDLINED" ON THIS PLAN SET OR SUBSEQUENT PAGES SHOULD BE CONSIDERED TO BE CONSTRUCTED IN ACCORDANCE WITH 7HE DESIGN AS SHOWN". NAME, 777LE DAIS FOR. SHEET INDEX SHEET 1-------- COVER SHEET SHEET 2------ --- EROSION CONTROL NARRATIVE SHEET 3---------- EXISTING CONDITIONS OVERVIEW SHEET 4------ --- EXISTING CONDITIONS, SOILS & DEMOLITION PLAN SHEET 5-------- EXISTING CONDITIONS, SOILS & DEMOLITION PLAN SHEET 6------ --- EXISTING CONDITIONS, SOILS & DEMOLITION PLAN SHEET 7---------- EROSION CONTROL PHASE 1 OVERVIEW SHEET 6------ --- EROSION CONTROL PLAN PHASE 1 SHEET 9--- ---- EROSION CONTROL PLAN PHASE 1 SHEET 10 ------ EROSION CONTROL PLAN PHASE 1 SHEET 11-------- EROSION CONTROL PHASE 2 OVERVIEW SHEET 12------- EROSION CONTROL PLAN PHASE 2 SHEET 13------- EROSION CONTROL PLAN PHASE 2 SHEET 14------- EROSION CONTROL PLAN PHASE 2 SHEET 15 ---- - EROSION CONTROL PHASE 3 OVERVIEW SHEET 16------- EROSION CONTROL PLAN PHASE 3 SHEET 17------- EROSION CONTROL PLAN PHASE 3 SHEET 18 ------ EROSION CONTROL PLAN PHASE 3 SHEET 19 ------ EROSION CONTROL PHASE 4 OVERVIEW SHEET 20 ----- EROSION CONTROL PLAN PHASE 4 SHEET 21------- EROSION CONTROL PLAN PHASE 4 SHEET 22------- EROSION CONTROL PLAN PHASE 4 SHEET 23------- EROSION CONTROL NOTES & DETAILS SHEET 24 ------ EROSION CONTROL NOTES & DETAILS SHEET 25 ------ WATER QUALITY COMPLIANCE SHEET 26 ------ WATER QUANTITY COMPLIANCE STORMWATER MANAGEMENT COMPLIANCE SUMMARY THE DEVELOPMENT OF BELVEDERE BLOCK 10, WILL OCCUR IN A SINGLE PHASE OF CONSTRUCTION. THE COMPLETED PROJECT WILL UTILIZE GRANDFATHERED, DIRECT DISCHARGE TO FACILITATE CHANNEL AND FLOOD PROTECTION. STORMWATER RUNOFF WILL BE COLLECTED AND CONVEYED IN A PIPED DISCHARGE TO THE RIVANNA RIVER. GENERAL IN ACCORDANCE WITH 9VAC25-870-48 SECTION A.1, 2, AND 3 THIS PROJECT WAS APPROVED BY ALBEMARLE COUNTY AS A PROFFERED CONDITION OF THE BELVEDERE NMD. THE ORIGINAL APPROVAL WAS IN OCTOBER OF 2005 AND LAST AMENDED ON JULY 22, 2014. AS SUCH THE COUNTY IS REQUIRING LAYOUT WHICH ADHERES AS CLOSELY AS POSSIBLE TO THE PROFFERED PLAN OF DEVELOPMENT. THEREFORE, THIS MEETS THE REQUIREMENTS OF A 1, 2, AND 3, WHICH CONFIRMS GRANDFATHERING OF THE TECHNICAL CRITERIA PART IIC, AS WELL AS SECTION C WHICH ALLOWS EXTENSION OF THE PART IIC CONSIDERATION FOR AN ADDITIONAL PERMIT CYCLE. THE NEXT PERMIT CYCLE BEGAN ON JULY 1, 2019 WHICH IS STILL IN EFFECT THUS CONFIRMING THE GRANDFATHERED STATUS. REGARDING WATER QUALITY (9VAC25-870-": GRANDFATHERED: THE APPROVED REZONING PLAN CONTEMPLATED PARTIAL PERIMETER CAPTURE USING BIOFILTERS FOR WATER QUALITY WHICH WERE SHOWN GRADED INTO (NOW) COUNTY PROTECTED STEEP SLOPES. WATER QUANTITY CONTROLS WERE SHOWN WITH UN -DETAILED DISCHARGE AT THE TOP OF COUNTY PRESERVED SLOPES. THAT PRACTICE WILL NOT BE ALLOWED DUE TO STEEP SLOPE REGULATIONS. THEREFORE, WE PROPOSE THAT WATER QUALITY BE ADDRESSED THROUGH NUTRIENT CREDIT PURCHASE USING THE NUTRIENT POUNDAGE CALCULATED BY THE ORIGINAL METHODOLOGY AT THE TIME OF APPROVAL. (THE COUNTY'S INTERIM STORMWATER SPREADSHEET). STORMWATER QUANTITY COMPLIANCE (9VAC25-870-66 PART B SPECIFICALLY DEALS WITH CHANNEL PROTECTION): IN ACCORDANCE WITH CHANNEL PROTECTION (SECTION B.) OF 9VAC35-870-66 OF VIRGINIA LAW; GRANDFATHERED: THE APPROVED REZONING PLAN WAS SILENT ON WATER QUANTITY HANDLING. THE PREVAILING DESIGN METHODOLOGY OF THE DAY WAS THE "1% RULE". TYPICALLY, DEVELOPMENTS WHICH DISCHARGED AT/INTO A MAJOR RIVER (IN THIS CASE, THE RIVANNA) WOULD DISCHARGE WHERE THE CONTRIBUTING DRAINAGE AREA UPSTREAM IS GREATER THAN 100 TIMES THE AREA OF THE DEVELOPMENT, HERE THE RIVANNA SERVES MANY THOUSANDS OF ACRES, AND A DIRECT DISCHARGE TO THE RIVER WILL MEET THAT CRITERION. OUR PLAN WILL DISCHARGE DIRECTLY AT THE NORMAL POOL ELEVATION OF THE RIVER TO MINIMIZE EROSION IMPACTS AND STREAMBANK DISTURBANCE. STORMWATER QUANTITY COMPLIANCE (9VAC25-870-66 PART C SPECIFICALLY DEALS WITH FLOOD PROTECTION): GRANDFATHERED: THE APPROVED REZONING PLAN WAS SILENT ON WATER QUANTITY HANDLING. THE PREVAILING DESIGN METHODOLOGY OF THE DAY WAS THE "1% RULE". TYPICALLY, DEVELOPMENTS WHICH DISCHARGED AT/INTO A MAJOR RIVER (IN THIS CASE, THE RIVANNA) WOULD DISCHARGE WHERE THE CONTRIBUTING DRAINAGE AREA UPSTREAM IS GREATER THAN 100 TIMES THE AREA OF THE DEVELOPMENT. HERE THE RIVANNA SERVES MANY THOUSANDS OF ACRES, AND A DIRECT DISCHARGE TO THE RIVER WILL MEET THAT CRITERION. OUR PLAN WILL DISCHARGE DIRECTLY AT THE NORMAL POOL ELEVATION OF THE RIVER TO MINIMIZE EROSION IMPACTS AND STREAMBANK DISTURBANCE. STORMWATER QUANTITY COMPLIANCE (9VAC25-870-66 PART D SPECIFICALLY DEALS WITH SHEET FLOW): GRANDFATHERED: N/A APPROVALS DATE DEPARTMENT OF COMMUNITY DEVELOPMENT ENGINEERING INSPECTIONS �I m • �O U g w OZ O� Y> � Qr aQw o 00 ¢� m w � aZ z Q U0 o 0(A WO 0 0Q <Z vU Z0 U~ by > o W wO r Oj 1�+ a jr N w N w Q � z > o Vruj n J o_ J C)azw O a w� mQ m= m U z 0 a z V w 0 w 0 Go O z 0-4 �y P4 z 2 FN-- H a z z 00 0 0 w o v v z z z z 0 0 U U N N w O N Q N ~ O � ry o �E Z DESIGNED BY: AGF DRAWN BY: AGF CHE Y: JILT ,,yyA s O off•$, j �. t V Y i y L. Taggart Ur. No. i4 )9/19/20726t� BBtapAL s+' g a Z O r > w 0 C) a o0T� Z J J w o m v a O CO w E-+ Q O w W n w Z Q Q O f� w = N U w w v o z Q o i- Q Q X m Q O O U DATE: oz-n-zozl SCALE: 1 ":1000' JOB: 6438 SHEET: I OF26 14 EROSION AND SEDIMENT CONTROL NARRATIVE PROJECT DESCRIPTION THE FIRST STAGE OF CONSTRUCTION OF BELVEDERE BLOCK 10 PROPOSES THE CONSTRUCTION OF 40 ATTACHED TOWNHOUSE UNITS AND 27 SINGLE FAMILY DETACHED UNITS (PLUS 2 EXISTING SINGLE FAMILY ATTACHED UNITS). TOTAL DISTURBED AREA IS 19.56AC. EARTHWORKS THERE WILL BE AN ESTIMATED 6,210.01 CU. YD. OF EXCESS MATERIAL AFTER FINE GRADING. EXTRA MATERIAL WILL BE TAKEN FROM A STOCKPILE IN BELVEDERE FROM PREVIOUS CONSTRUCTION PROJECTS. 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 BELVEDERE DEVELOPMENT THAT HAS BEEN APPROVED BY THE COUNTY OF ALBEMARLE COMMUNITY DEVELOPMENT DEPARTMENT. SOILS 16 - CODORUS SILT LOAM (0% TO 2% SLOPES): MODERATELY SLOPING AND OCCASIONALLY FLOODED. STARTING AT SURFACE LAYER TO SUBSTRATUM, SOIL LAYERS CONSIST OF SILT LOAM SILTY CLAY LOAM SILT LOAM. PERMEABILITY IS MODERATELY HIGH TO HIGH. AVAILABLE WATER STORAGE IS HIGH. 27B - ELIOAK LOAM (2% TO 7% SLOPES): MODERATELY SLOPING AND WELL DRAINED. STARTING AT SURFACE LAYER TO SUBSTRATUM, SOIL LAYERS CONSIST OF LOAM, SILTY CLAY, SILT LOAM. PERMEABILITY IS MODERATELY HIGH TO HIGH, AVAILABLE WATER STORAGE CAPACITY IS MODERATE. SURFACE RUNOFF IS MEDIUM 27C - ELIOAK LOAM (7% TO 15% SLOPES): STEEP SLOPES AND WELL DRAINED. STARTING AT SURFACE LAYER TO SUBSTRATUM, SOIL LAYERS CONSIST OF LOAM, SILTY CLAY, SILT LOAM. PERMEABILITY IS MODERATELY HIGH TO HIGH, AVAILABLE WATER STORAGE IS MODERATE. SURFACE RUNOFF IS MEDIUM. 39D - HAZEL LOAM (15% TO 25% SLOPES): SOIL IS DEEP, STRONGLY SLOPING AND EXCESSIVELY DRAINED. STARTING AT SURFACE LAYER TO SUBSTRATUM, SOIL LAYERS CONSIST OF LOAM UP TO 20 INCHES DEEP, CHANNERY LOAM UP TO 30 INCHES, BEDROCK UP TO 79 INCHES. PERMEABILITY IS MODERATELY HIGH TO HIGH WHILE AVAILABLE WATER STORAGE IN PROFILE IS LOW. 40E - HAZEL LOAM (25% TO 45% SLOPES): VERY STONY, EXCESSIVELY SLOPING AND EXCESSIVELY DRAINED. STARTING AT SURFACE TO SUBSTRATUM, SOIL LAYERS CONSIST OF LOAM, CHANNERY LOAM, BEDROCK. PERMEABILITY IS MODERATELY HIGH TO HIGH. AVAILABLE WATER STORAGE IS LOW. 95 - HATBORO SILT LOAM (0% TO 27): OCCASIONALLY FLOODED POORLY DRAINED. STARTING AT SURFACE TO SUBSTRATUM SOIL LAYERS CONSIST OF SILT LOAM, SILTY CLAY LOAM, SANDY LOAM. PERMEABILITY IS MODERATELY HIGH TO HIGH. AVAILABLE WATER STORAGE IS HIGH. 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. SUPER SILT FENCE BARRIER - WIRE -REINFORCED SILT FENCE BARRIER WILL BE INSTALLED TO FILTER RUNOFF FROM SHEET FLOW IF DEEMED NECESSARY BY THE EROSION CONTROL INSPECTOR. 6. DIVERSION (3.12) - A CHANNEL CONSTRUCTED ACROSS A SLOPE WITH A SUPPORTING EARTHEN RIDGE ON THE LOWER SIDE. 7. TEMPORARY SEDIMENT TRAP (3.13) - A TEMPORARY PONDING AREA FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE OUTLET. 8. TEMPORARY SEDIMENT BASIN (3.14) - A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE STRUCTURE FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. VEGETATIVE PRACTICES 1. SURFACE ROUGHENING (3.29) - ALL AREAS WITH A GRADE STEEPER THAN 3:1 SHALL BE STAIR -STEP GRADED OR GROOVED (PLATE 3,29-4) TO AID IN GRASS ESTABLISHMENT, INCREASE INFILTRATION, AND TO SLOW RUNOFF VELOCITIES. 2. 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. 3. 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. 4. 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. 5. 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. 6. 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. 7. 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. 8. 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. B. 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 STONE, 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 FOWLER STREET. 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 THOUGH 7. 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. 2. PHASE 2 2.1. 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). 2.2. CONSTRUCTION OF THE WALLS MAY BEGIN. CONSTRUCT SEDIMENT TRAPS 1A, 4A, AND 7A. REMOVE SEDIMENT TRAP 1, SEDIMENT TRAP 4, AND SEDIMENT TRAP 7. SEDIMENT TRAPS 1A, 4A, AND 7A & DIVERSIONS MUST BE IN PLACE BEFORE REMOVING SEDIMENT TRAPS 1, 4, AND 7 & DIVERSIONS. 2.3. CONTRACTOR TO BRING SITE UP TO GRADE AS SHOWN ON THE PHASE 2 EROSION AND CONTROL PLAN. CONSTRUCTION ROAD STABILIZATION MAY BE REQUIRED. 2.4 PERMANENT SOIL STABILIZATION SHALL BE APPLIED TO ALL DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 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 WALL NOT REQUIRE MOWING. 3. PHASE 3 3.1 CONTRACTOR TO BEGIN CONSTRUCTION ON ALL UTILITIES. ALL INLETS MUST BE PROTECTED BY INLET PROTECTION (IP) AS SHOWN ON SHEET 14. 3.2 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. SEDIMENT TRAP 4 TO REMAIN UNTIL PHASE 4. 4. PHASE 4 4.1 SPREAD TOPSOIL AND ADD PERMANENT SEEDING TO ANY DISTURBED AREA.. 4.2 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. 4.3 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 ACTIVITIES.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 , L, 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.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 PUBUC 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 SHALLAT 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 LEIS/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. CONTRACTOR SHALL KEEP ACCURATE RECORDS OF ANY CHANGES SUBSTITUTIONS, ALTERATIONS, VARIATIONS OR UNUSUAL CONDITIONS ENCOUNTERED OR IMPLEMENTED WHILE ENGAGED ON THIS PROJECT. THESE RECORDS SHALL BE IN THE FORM OF REDLINES". 'REDLINES" SHALL REFER TO THE CONTRACTOR'S HAND ANNOTATIONS USING RED COLORED PEN/PENCIL TO DEPICT ACTUAL CHANGE, SUBSTITUTION, OR CONDITION. PRIOR TO CONTRACTOR REQUESTING PARTIAL OR FULL PAYMENT, CONTRACTOR SHALL PROVIDE THE OWNER WITH AN UP-TO-DATE CONTRACTOR'S RECORD DRAWING. SPECIFICALLY, THIS SET OF PLANS, ISSUED TO THE CONTRACTOR AS FINAL CONSTRUCTION DRAWINGS, SHALL BEAR THE REDLINE" MARKINGS LISTED BELOW AS WELL AS THE CONTRACTOR (AGENT OR SUPERINTENDENT) SIGNATURE AND CERTIFICATION BELOW: 1. REDLINES SHOULD ALWAYS BE ACCURATE NEAT, LEGIBLE, DATED AND REASONABLY SCALED. 2. ADD LARGE RED LETTERS TO TITLE SHEET WITH 'CONTRACTOR'S RECORD DRAWING' INCLUDING CONTRACTOR'S NAME, DATE, AND OTHER RELEVANT INFORMATION 3. CONTRACTOR'S REPRESENTATIVE OR SUPERINTENDENT SHALL IN111AL EACH SHEET. IF A SHEET HAS NOT BEEN CHANGED AT ALL OR NO MARK HAS BEEN ADDED LABEL THE SHEET ONLY 'NO CHANGES' 4. IF A SHEET HAS BEEN CHANGED OR MODIFICATIONS HAVE BEEN ADDED, LABEL IT 'REVISED' 5. USE WRITTEN EXPLANATION TO DESCRIBE CHANGES. REFER TO SPECIFIC ACTIONS INSTEAD OF REFERENCING CHANGE ORDER NUMBERS OR RELATED DOCUMENTS 6. USE CLEAR LETTERING 7. NEVER REMOVE OLD VALUES OR DETAILS JUST REDLINE OR "X" THROUGH THEM. IF THERE IS NO ROOM FOR THE NEW VALUE, YOU CAN GO TO THE SIDE AND REDLINE THE REPLACEMENT VALUE. 8. PROVIDE THE REDLINE DETAILS OF CHANGES OR ADDITIONAL INFORMATION INCLUDING BUT NOT LIMITED TO FABRICATION, ERECTION, INSTALLATION, LOCATION, SIZING, MATERIAL, DIMENSION, ADDITIONS, RELOCATIONS, SUBSTITUTIONS, ETC 9. BE SPECIFIC WHEN MAKING NOTES TO UNDERGROUND UTILITIES, SHOWING EXACT LOCATION, DEPTH, AND MATERIAL USED EXAMPLE: SEWER LATERALS 10. PROVIDE ALL NECESSARY INFORMATION OF CONTRACTOR'S DESIGNED SYSTEMS OR SUBSTITUTIONS 11. CROSS OUT ANY PLAN REFERENCE TO "APPROVED EQUAL" AND REPLACE WITH ANY SPECIFIC INFORMATION OF VARIANCE USED DURING THE CONSTRUCTION PROCESS 12. ANY CHANGES IN INVERT ELEVATIONS, GRADE MODIFICATIONS, SLOPES, AND RELATED INFORMATION ON PIPING UTILITIES, EARTHWORK, ETC. SHALL BE REDLINED. 13. RECORD ALL UNEXPECTED OBSTRUCTIONS, COMPLICATING FACTORS, UNSUITABLE CONDITIONS FOUND IN THE PROJECT AREA INCLUDING ROCK, UNUSUAL TOPSOIL CONDITIONS, BURIED DEBRIS, ETC. 14. ATTACH OR INCLUDE ANY SHOW DRAWINGS OR SUPPLEMENTAL INFORMATION TO THE CONTRACTOR'S RECORD DRAWING 15. CHANGES MADE AS A RESULT OF ANY REGULATORY OR OWNER INSPECTION PROCESS CERTIFICATION STATEMENT: THIS HAND -MARKED SET OF DRAWINGS HAS BEEN REDLINED" TO PROVIDE ACCURATE DETAILED RECORD OF ANY SUBSTANTIVE CHANGES TO THE APPROVED DESIGN DRAWINGS. ANY ITEM NOT 'REDLINED" ON THIS PLAN SET OR SUBSEQUENT PAGES SHOULD BE CONSIDERED TO BE "CONSTRUCTED IN ACCORDANCE WITH THE DESIGN AS SHOWN'. NAME, TITLE, & DATE FOR: (CONTRACTOR) 0 zU a Y--1 M r �$ U Z ZaN 0 0 M) CID JJ? O V] Q01 2<L V1 o W z 5 j aU <W m `•3 p(O Ir wo D W U< �< Q Z a 0 Z0 0 OIr > n Y�-1^ CO o W W (3o LL Z rn (> a a aw N (n N W < Z J O �W m�Lu a J >_ F - r > S O a W Z �/ y O W m rn rn - z O r s u w 0 < 0 C z I z 0 z a w w 7� 2 2E u� 2 2 w 0 0 0 u u z z O o u u N N w O N N . ' 0 N N O Z • N yO}0t:6T/B Op ple 0n Sys / /' Jimmy L Taggart A 22841 has 09/19/2022 d88/ONAL Eta Z < g z 0- c) 0 O r > F_ J 0 U T Q w 00 '2 � Z J J LLI E--i O m LLJ 00 � FO U Q 04 O CO M LL � Q O w LU D z a °6 � � Z O z Q Q o � LLI QD U O LU 0 U U Z cr 2E P O a Qx o 0 Q < P4 fr w Q J w H- �w 0 m < Ir < O O (D Ir DESIGNED BY: AGF DRAWN BY: AGF CHECKED BY: JLT DATE: 02-17-2021 SCALE: 1 "=30' JOB: 8438 SHEET: Z OF 26 sl AM a BELVEDERE PHASE 4 (FUTURE) — I J�tREAM � � Sr ,- ^ / � ��REAM � �_ = , �� �. S R S 10 SING pE1 A�� i `/ S742"8-E 85QOp JBi 19, EVEE�� UA 4 / TREE �NE (tYPi I V !- 1.58pC � 4 �� 3 BELVEDERE AS4 osl F �' / 0� PH ASE E / I // (FUTURE) ED ?IRE-0V — \ m o i �42Z� / P�n�ED /�i--' STREAM '� — \ PRE -DE i 440 \ \ /--- VO EA pA 1 Ile) / / / / I/ 00 YE D De IL 1 ED PROPOSED WATERLINE / \ PRE�DE�EOP CONNECTION POINT T�i ' I DE`1��� _ A \ / vDAB AD 1� DAB \ v ,g I \ 1 I J$•"s'e54�� � \\ o ���� � \ �� 1 Dp8 7< 2 K \ - I' 212AD y�l------------ Q!,tRE-DE�OPED P Dk I n INC � / ( � / 9 ✓ LEGEND 95 ® SOIL LINE TYPE (SOIL TYPE) SCALE: 1 DUNLORA FARM T L �� \�V \ ��/i a(J A \ �- _ _ 1 \ \ PROPOSED SANITARY SEWER � �b PHASE 1 (FUTURE) o � �1 ���---,� � w�,, CONNECTION POINT � � � � � % V fill y y 7 EXISTING SANITARY SEWER (SEE / "BELVEDERE PH 513 OFF -SITE SEWER") /h BELVEDERE \ \ \ V�v 1g363— PHASE 5A s5— s Ns7gB 05. \ w\ �_` ' , 0i SIREIf A� 207 74�Z N76'02'35"W 181.93' �y?'9i�"'`ie• 60.0427. BELVEDERE PHASE 5B (FUTURE) ab 7U7 Ao m w H U z Zd Q O ro __J 0 ¢0 § J 0 �y Ir OU aC m "0 for L w a z U) w=a o W OQ �a <Z z(5 C7 ° > U) o x w (5 Ir > N V ELw w N w Q U) Z J 7 Q U)n d J }_(n C) a 0 w U0 04 w� nw¢ rn = rn U z O a 0 w a �Q 00 z o a w w u w 0 0 o u L) z z 0 0 O O ti O N N Q r- d) inN N O N z N On ° �:J��art a� ♦' Z Q Q Z IL c) 0= O r > Y w z U 0= Z O J w O m U Q w O CO Q LL o w W a- rn 06 (Q c z o z<<5 �' CM 0 a C) 0 W z or : Q QX Q Z < _j � W Q w J U) W 0 m Q O O U DESIGNED BY: AGF DRAWN BY: AGF CHECKED BY: JLT DATE: 02-17-2021 SCALE: 1 ":60' JOB: 8438 SHEET: 3 0126 \ /I f00 o� v1 vvv vV ��v A �i----vW\ PROPOSED SECONDARY ACCESS LOCATION \ - — .r / / \ , \ \ \ / \ � i / / ✓—.� � _-__ .-. 1 E a � _ __ -- _ --ice / / / _� / //' '440� TMP 62C-7-E \ \ i �V♦ �' \ N/F NEW BELVEDERE INC - \ \ \ �- / / / / , - -45� / l I DB 5193 PC 462 f I I I ( '1I I I I II II � -_ _'_ � / _ yam` \\ -/-��`_'V -f l � t � ♦ / 11� T ��� v vvv /J �r i ♦♦ �� 0000 f ' . 1 � vvv �� j I � �I I I I II I I� —,� � v � v ♦ ♦ _ �f f � ♦ � 1 v v®III v v v v v — 1 00 ♦ v __ _/ NEW BELVEDERE, INC _ i .0 � 1 —/ V v \���v v v v� vv vvv v�`♦ / 00 TMP 62A3-1 \ 00 , — 1 \ \ \ \ \ \ \ \\ \ \\ I ♦ l VACANT 1 v �� vv� vvvv v V v \ v ♦ J / / -/7 ZONING: NMD �, \\ \ �\` \` ` \ I \ ♦ _ J / —I / 90.78 ACRES Poo 1 V ® VAS v vvv vv �� v � � _ � �\ ♦ �_�v� � 00 00 � � 1 PROPOSED WATERLINE \ �J CONNECTION POINT BEGIN SIDEWALK `, �v v `//,�OA,��� AND CURB CONSTRUCTION v vv v vv — y ♦� \ \\ 13;#INC � �.1 N� A V A EXISTING SECONDARY ACCESS ROAD FROM BELVEDERE PHASE 5 BEGIN PAVEMENT \ \ TO BE RELOCATED PER THIS PLAN r� z ♦ v v v l I �% � — 4 CONSTRUCTION ♦ v v ` 00 / r / one INC 1 �a' \ 1 BEGIN SIDEWALK ��� / r AND CURB ��` i —I // —` J /l — 1 1 �5 4 „� 1 ,9 - CONSTRUCTION ��� �v < ® 1 / J 1 CURB, GUTTER, &SIDEWALK TO BE �` ' \ \\ �� J) EXISTING TREELINE REMOVED & BUILT DURING ♦ \ \ \ 0 1 TO BE REMOVED CONSTRUCTION OF BELVEDERE PHASE \ \ ` IN ACCORDANCE 5 SUB-2019-00170 AND NOT _ WITH THIS PLAN INCLUDED AS PART OF THIS PLAN - 4 ftftEXISTING CURB, ��♦ �. GUTTER, & �� I SIDEWALK TO BE �� I \ \ REMOVED & �� �� v i REBUILT PER THIS �� ;1 _� vv vv o v \ 'V �� �� V� y PLAN ♦� V A / / vvv vv — J. ��\ \ C � �� �i FOWLER STREET TO BELVEDERE PHASE 5A DEVELOPMENT. SUB-2019-00170 TMP 62-16D N/F BELVEDERE LAND HOLDINGS LLC DB 5088 PC 605Av �v O ^ 00 gS V a m � N i U) U z Zd O 0(D 0J o 00 Q � m aZ xW p ug �o w UQ Ma QZ vv Zir (r x (co /) > o w (9 0 U. z N m Ir d W N V N W Q Z J > O ^ co a J S O aZw Z (U O W m rn = rn U Z O u u 0 w a 0 Z 0 z p0 z 0 0 w ZZ __ oa O N N Q r d) � N O z N C rt z a Z go 0 0 r > a z U O o T a Z O J m o m 0 a w� CLLI W < o as (I) M z a w = N 0 o �nCflF w D_ O z Z O Q Q X p Q z W Q o Q -j z W cf) O O U DESIGNED BY: AGF DRAWN BY: AGF CHECKED BY: JLT DATE: 02-17-2021 SCALE: 1"=30' JOB: 8438 SHEET: 4 OF 26 I MATCHLINE SHEET 4 MATCHLINE SHEET 4 f � Lo1 �� iI\ �'► ► ffoo /\ �/ ��v cZ ,v I � 0000 l j / / //�. W . � I L w a i Co00 /tea 0. 000 00 I, 000000� i / / _I DRAIN�GE DIVIDE (TYP) _____—_ 6-7 co I / � / � I 1 1 1 I ) I � J / / - � 1. I , � , III / � � � / � , �' ,' , ,' r � I / SI0 1 �1 I i I I / / / / / / c% N �� 1 / v ► l I �I ii I / / / ' ,co / Qo / I I @ ®� s ® I �� ✓ ��° yl v C�v � j N v II `9 ,o �� C� `, v� v — T _ � •O —A 1 a zo o m o� 1 \ V A �J l f- — — — — — — / N \ 1 _ — o m\ CD ' v vvvv �v `v� �� m p-- C) �� vv v vvv �,� `v �m c n m n 0�f7� � \ -00 — m �m� A -- -- - — -- _ p \ \ \ L / — — r \�oo��, A \ Z — _ _ — — — — Jpl 0-1 ®\ OS,, - -- -- - --�-------- -- \ \ • 1 As�_ t�l-J p m l � \ _O 16(9 :ow n m m pOp 0 D r m 0 m who co W o V l N O N 0 STORMWATER MANAGEMENT & EROSION CONTROL PLAN a ` co o m 000 BELVEDERE PHASE 3 BLOCK 10 mm 3� "'; o W m W -< TAX MAP 62A3 PARCEL 1 �= r ` RIO MAGISTERIAL DISTRICT, COUNTY OF ALBEMARLE , VIRGINIA w}{�+� °c T T EXISTING CONDITIONS, SOILS & DEMOLITION PLAN REVISIONS NO. DATE DESCRIPTION NO. DATE DESCRIPTION 1 12-21-2021 COUNTY COMMENTS 2 09-19-22 COUNTY COMMENTS J m 2 m c i ROUDABUSH, GALE & ASSOC., INC. SERVING VIRGINIA SINCE 1956 PHYSICAL MAILING 999 SECOND ST. SE, 435 MERCHANT WALK SO., SUITE 300-159 CHARLOTTESVILLE,VA 22902 CHARLOTTESVILLE,VA 22902 PHONE434-977-0205 WWW.ROUDABUSH.COM A MATCHLINE SHEET 4 MATCHLINE SHEET 4 v � 00 ®v -a J/ � ♦♦♦ � `� ;� ♦ � I \ \ I I I 1 1 I �� 1 1 1 1 1\\ \vV ' A / ���� ► f Qi V vvvvvv�A\� I / ♦� ♦1� ® v v v v A v vv v v / �/ r �♦ I ® \V V �\ \v \ A I 1 / ���►�� 400 � 00 / /' /- / �' /' �' /' / �I �I(Ii f`s' / � 00 r m A CD CPO � ! \ \ \op 14 v vvv v v VA Vv AA VA�\\VA�AVAV�\ V C so ®g �® \ vv vv v v\VV A\\V AA\\V A 1\ V Al\\V�\\ v� v� vv\� ` )N / // // // /' ® � � � ` - -_ ��♦ � � � v\ \V A AV 1 �I \V A � \V A I 1\ � \ \V A A \ V A \�A� V A • I 1 ftft ��� mw��� II I\ II II 1\ \I 1 A\ �, \\ \V A\ V A V A\ A\VAV i♦ M o - /,, �\ r' v 000000 77 N A i' / #,000# / Z 0 0 ® m n n m m �cno D r m m who CJ II N coo� W N O N 0 STORMWATER MANAGEMENT & EROSION CONTROL PLAN BELVEDERE PHASE 3 BLOCK 10 TAX MAP 62A3 PARCEL 1 RIO MAGISTERIAL DISTRICT, COUNTY OF ALBEMARLE , VIRGINIA EXISTING CONDITIONS, SOILS & DEMOLITION PLAN 000 m D m co�TI 3�jr ccoWmzm m viol REVISIONS NO. DATE DESCRIPTION NO. DATE DESCRIPTION 1 12-21-2021 COUNTY COMMENTS 2 09-19-22 COUNTY COMMENTS J ROUDABUSH, GALE & ASSOC., INC. ^SERVINGV VIRGINIAv SINCE 1956 PHYSICAL MAILING 999 SECOND ST. SE, 435 MERCHANT WALK SO., SUITE 300-159 CHARLOTTESVILLE,VA 22902 CHARLOTTESVILLE,VA 22902 PHONE434-977-0205 WWW.ROUDABUSH.COM A , SREE /�/A �A JI'v v\� V —' �X / / D��•�•�p►Ci % lo Oct. SEOSPwPRN�NG• J, DID ( \ v Vv vv vA vv vA v vv v v \ /182 _ l vv,�v �v� Es 3 MGGPRRANOPG SNSO �pyEVR O�ER/ PR �GSPEGa(OoR� �RE SPV�ON• ENsGRE ___/—f i 4 3 SHPN MUsl,NPNCE\SMPNps 6EP GN�55S\.PE S\IkeP w*cv,D�Z.02PC POs\P\�B5� DR PAN PG\E, 0\SNIK / -to $� g� �MRS\ S�p�\NP\y SNOM\i / �� 000 i I II� I � — — — j 1P\CP\ 1 0 i � i 0000 04 021 AOO , AWANaE SE•`E;c'Oevo 0NO J 04 f \ \ \ J' AEG �Es�? F J�- k •�` \ V A J ( �'- � � •��•.�'''`•' �� �� i. EROSION CONTROL MEASURES LEGEND 3.02 CE ENOTRANCETION 3.05 SILT FENCE SF 3.05 SUPER SILT FENCE SSF 3 07 P STORM DRAIN INLET PROTECTION 3.08 CIP CULVERT INLET PROTECTION 3.09 TEMPORARY DIVERSION DIKE 3.13 ST SEDIMENT TRAP 3.14 SB SEDIMENT BASIN 3.18 OUTLET PROTECTION OP 3.31 TEMPORARY SEEDING 3.32 P S ERMENANED NG T 3.35 MULCHING MU 3.38 TREE PRESERVATIONo-- AND PROTECTION 3.39 DUST CONTROL�- \ \ 4% 4. y vvv � M 1OPcE\E LPN V- v v v /,L _ v v \ l MPAN �0 GOyER i �V S \ k _� vv i PS vv 3 0G 1 \ 2 \ \ \ c„ J Go X DaP�1� 5 AG k \ 1oto$� SP -IN PENCG KEEP PROpO5E0 GNS *WPRZP 0• roj �/� - 7— ftkft�X���v V �\ ✓ Vv v — �1 vvv A \v A NOTE: ENCROACHMENT ONTO THIS PARCEL (62-16D) / /+ \ IS DONE AT OWNER'S REQUEST SUCH THAT x \ \ \ SECONDARY ACCESS IS MAINTAINED. a \ \ OO I \ �� Q 30 0 30 60 90 SCALE: 1"=30'CR V \y vv v v vvwv v v �v \ _ �M U a U a w n U) N U O z 8) Zak fj Y C' ¢013 J o Er = Qica 0U ¢� m °18 IL 2 oco w wo M a D ¢ _j vu QZ Z� W w (7 o v...j� � O W O N V (D Q N > w z O J CmLu a J aZw Z W w O m IPFI0__) = rn U z 0 a u u 0 0 N DESIGNED BY:j AGF DRAWN BY: I AGF CHECKED BY: I JILT SyTB Op pj�a A� Jimmy L Taggart A 22841 sae 09/19/2022 Q z O Ir T _ w ti ;U Q O T g __J m J U w a Q L o z i W IL s Q z a Q i = CV o 0 a- CO F Ems-, W D_ O w O � H � w X Q 0 O LLI < o i w w JLu m Q O DATE: 02-17-2021 SCALE: 1 "=30' JOB: 8438 SHEET: S OF 26 00 \ MATCHLINE SHEET 10 1�16-1 _/ 8 4 1'2 1 pN 3.1 6 •� — — — 1- — —1 _ . OPES GRE 1 p 0 SOW / (� —\ — /— p� �cNpsl N NeP G,EZNE- \ r MNSj CE TM \ ��� \ J PROPOSED SAFETY FENCE, 1 — INSTALL SIGNS "WARNING KEEP OUT, DROWNING HAZARD" \ \\ \ J N V A V A\ \\\ V A A V A \ r 1 � p►Cto I � < STA \ — \ LI Oro (;EPA v v w DNA• 1.��g NCO log• J 4-11o\ 14fi� �� - OPO �FC9 DAVER�� ENSDRE p aF�► 1 / l // 1 1 PR SOR � MP\NZp��E9g �(�►E P�`G 1 1 I � � I � f 06_ GKEEP 0BERM SAOPP �NpOYBMi E / ES0 �N Z�O �AQOSESFDWP!1GKEP O ' " O / \I 1 p� S�-� gt pg\U1E .� p~1VE PRE S\GNS AlpRO '`P PROPOSES S "WpRNp 0• p F�Rs p` F� pu- _ ~; BE VET SNpN SSpV' ENO H � j I �NSSp O LNG Np1 l - MN"' NpCO ROVER OR _ ND / I SS • ccPl �9� i DRAINAGE AREA TO SF=1.40 AC RECEIVING SECTION OF SF=730 LF v _ — — — — _ _ -- ��0 *DA DOES NOT EXCEED 0.25 AC PER 100 LF - 9 �i' �' / / /i / • � — w—s s —s —f =s _s EROSION CONTROL MEASURES LEGEND CONSTRUCTION 3.02 ENTRANCE I CE 3.05 SILT FENCE SF 3.05 SUPER SILT FENCE SSF 3 07 STORM DRAIN INLET PROTECTION P CIP 3.08 CULVERT INLET PROTECTION TEMPORARY 3.09 DIVERSION DIKE DD 3.13 SEDIMENT TRAP ST 3.14 SEDIMEBASNT SB OUTLET 3.18 PROTECTION OP TEMPORARY_ 3.31 SEEDING TS 3.32 P SEEDING T PS P� 3.35 MULCHING MU 3.38 TREE PRESERVATION�- AND PROTECTION 3.39 DUST CONTROL�- til U a m �� 0 z ZaN 0IO ¢01 3 J o V/ J = 0" ow ¢3; m aZ to =W Ir D po UQ Ma ¢ vc) QZ z� ¢_ 0> W (9 o 0 i NLu 7 �v...j� aw N UJ Q9 N w z U U) J d J V aZw Z o0 m¢ m= rn U DESIGNED BY: AGF DRAWN BY: I AGF CHECKED BY: I JLT O}le SI,I Op J30 Jimmy L Taggart A 22841 sa �e 09/19/2022 riilO iAL E5a Q z O Ir T Y w ;U Q O T g W w JQ a W U Q o z i W D_ s Q z a Q j _/l N 0 o a- QD F E— )W o_O w o cr 2 H U W X Q 0 O < o i w R' w J G Lu W Q O O^ DATE: 02-17-2021 SCALE: VI JOB: 8438 SHEET: 9 OF 26 i/ / — - _ SEE STREAM CROSSING DETAIL \ 66 0 $0 120 180 li SCALE: 1"=60'7 \loo 0 --- _ 100 ��co s► .� fZ�•�' .��� ice'vvv`\`V A�\\ \VAV�VA ` `�A\ V A\ \VA\\\\�A\ vvv`♦ A ��� �i// / i - -v V�V A`'� pS�PEP► � / E0����� R Q� ►� �� _ ���..�� rH 1p I .� � ��� AOO D SP RN\N PR�p� SVGN�� �ptipRD '' w �R�� Il II Il II 1 II I 1 11 III 1 II \ ��►T �P cjF� -' vo�s, DR°�' � " � ; ; --- �° � I I I I I I I � � 11 I II � II 1111 IIII pp►�NP`�'E $E�� EF.O ��,5 ; / , - ; , - = , _ _ _ _� � � �wv ,. TO - / 16 2- — — — — —_ r? '° PA 1`aaa� ' to I 1 I I C v I I` A V v �' RSVDN• � 1 /' 00 D\ SHPv ENN\ PNED. i 1 P6610k, S 10kROE \S AB\U�D ,gyp D\S�RBPNCE. 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No A 40� 19/2022 �1!~ e8ZONAL g a z CE O r > Y J � o U a U) T Z J J m a O coU j a Cw Q o W�oQ z U n zaa c9W o_o CD z fr � � U Q Q X Q o � W ~ Q o Q J � w � m � IL Q O 0 CE DATE: 02-17-2021 SCALE: AS SHOWN JOB: 8438 SHEET: 14 OF 26 MATCHLINE SHEET 16 MATCHLINE SHEET 16 14 m m " D r Pp D m WOD II IV V N O N O m STORMWATER MANAGEMENT & EROSION CONTROL PLAN BELVEDERE PHASE 3 BLOCK 10 TAX MAP 62A3 PARCEL 1 RIO MAGISTERIAL DISTRICT. COUNTY OF ALBEMARLE . VIRGINIA EROSION CONTROL PLAN - PHASE 3 0^0� n 6) ° �► 3 �zz m -,as omp rt� M m m .16 00 m O co Oo CT N — W � W 222222 O z m O m ~O -u U) FT O O p om m m �)c (n � <� c) O = mpm m0 mm z NO OZ77 CD V) D� n mm Z ZZ ��) 4 Zm � oy nZ Z Z Z n G G� G"> D D � O— � O fTl C7 O o zo �� D zm oz z m p r z 0 m m z m rl m m m z v REVISIONS NO. DATE DESCRIPTION NO. DATE DESCRIPTION 1 12-21-2021 COUNTY COMMENTS 2 09-19-22 COUNTYCOMMENTS SERVING VIRGINIA SINCE 1956 PHYSICAL MAILING 999 SECOND ST. SE. 435 MERCHANT WALK SQ., SUITE 300-159 CHARLOTTESVILLE,VA 22902 CHARLOTTESVILLE,VA 22902 PHONE434-977-0205 WWW.ROUDABUSH.COM I 30 0 30 60 90 SCALE: 1 "=30' �Q MATCHLINE THIS SHEET C/ 12 REZA � 414 W — — - -- -- 416 418 jREE 1 l I //�/ (n ,-� 422 II II 1 ----,- � � 1 ' _ )0(X 408-7-7 426 — \ U - / 1 A� v 412 — v vvA, \ 4A6 A \ ---- Y ,O i / r " 0 �xx e 5 S. S S� \ W z �SANITARY /I ems, Is 0 po 120 180 I J i- 0 C� STREAM, —Z \ 9 \ S 01 ss" i D X Ic x O Ss\ x �P vS� v, v = —y _ TP f _ 1 1RE U� cy(i� -- 1' EROSION CONTROL MEASURES LEGEND 3.02 CONSTRUCTION ENTRANCE CE 3.05 SILT FENCE SF 3.05 SSFF SUPER SILT FENCE 3.07 STORM DRAIN INLET PROTECTIONCULVERT P 3.08 PROTECTIONLET CIP TEMPORARY DD 3.09 DIVERSION DIKE 3.13 SEDIMENT TRAP ST 3.14 SEDIMENTBASIN SB 3.18 OP OUTLET PROTECTION TEMPORARY SEEDING �- 3.32 P SEEDING T 3.35 MULCHING 3.38 TREE PRESERVATION TP - �- AND PROTECTION 3.39 DUST CONTROL DC oc CC)v i I \ V I 'I _ Q - — A II 340 STREAM CROSSING PROFILE R s 416 e s414 a �412 \I 335 4 W X_ SF \ l 1 330 O� J s � 325 320 � " s O ,r NE SHE 17 1 11� 1 STREAM `bR SING 1 t' 9+7510+00 340 335 330 325 320 11+00 11+50 U a w m� 0 Z (O z U N �Y O ¢ LO 0) j 3 J o ���/� V/ cr J = Qica 0U ¢3; m y "O w r 0 0@ UQ wO �a ¢ JZ vv Z� w (9 o V] 0- m a w � Q a w Z U (W J d J aZw Z a/ o 0 m¢ ¢= U z O a u u 0 w a 0 Oz AG o � � aww 0 0 w o u u zz __ oa O N N N d) N O r-I ZN DESIGNED BY: AGF DRAWN BY: I AGF CHECKED BY: I JILT O}e�SyTB Op pj�a �-7 Jimmy L Taggart 22841 VS�i has 09/19/2022 �8810NAL Q z O Ir T w U Q )OT w J J w a m U Q Q O i W D_ z a fU)MZ :QQD C\lQD °o a- )W o_O o LL 2E H W X ° o Q � Q O i < G W W m i DATE: 02-17-2021 SCALE: 1 "=30' JOB: 8438 SHEET: 18 OF 26 X\ All _ _ - W - -- - ' 5Q p,C 6C 101 1—\ VJ —— _ s s——s — J --_ \ -r \ ------------ ----, PES GREATER THAN 3:1 STABILIZED WITH LOW ANCE VEGETAIIVE /��� / COVER OTHER THAN i I 11 1 I I/ MUS MAII GRC EROSION CONTROL MEASURES LEGEND 3.02 CONSTRUCTION ENTRANCECE 3.05 SILT FENCE 3.05 SUPER SILT FENCE SF STORM DRAIN O 3.07 INLET PROTECTION IP 3.08 PROTECTIONL CIPOUTLET 3.09 DIVERSION DIKE DD }� 3.13 SEDIMENT TRAP ST 3.14 SEDIM T SB 3.18 PROTECTION OP 3.25 UTILITY CROSSINGAM USC '� 5 � 3.31 T SEPUORN RY TS ---0-- 3.32 P T SEEDING PS P5 3.35 MULCHING MU 3.38 TREE PRESERVATION TP ---o-- AND PROTECTION A U a w � � OZ z U) O (D �Y j 0J o Er WJ ca = �4 00 aC m W 'V Q co W 2 D a Q QZ vu Z0 (A > o ti.j w o LL W Z �v...j� 0 i Ncp 7 O W N N W (n a Z J > O U � J d J S co uj IL Zuj z a/ w o m¢ rn = rn U z 0 a u u 0 w a 0 O z AG z � OD� � a w w 0 0 w o u u z z 00 iy O N F N � � N � N O r-I z N z SyTB Op pe Jimmy L Taggart A 22841 doe 09/19/2022 d88�oxeL E,�u g Q z 0- c) 0 O r > I.- Y w O U Q T zJ Jw O m U Q co 00 CO Q O w W D_ Z Z Q Q O w a QD O 04 0 W o_ ° o z cr 2 U Qx o 0 F- a o Q J Ir 04 � w �W 0 m < I a O 1- O 07 DESIGNED BY: 3.18 PROTECTION OP 3.25 UTILITY CROSSINGAM USC '� 5 � 3.31 T SEPUORN RY TS ---0-- 3.32 P T SEEDING PS P5 3.35 MULCHING MU 3.38 TREE PRESERVATION TP ---o-- AND PROTECTION A U a w � � OZ z U) O (D �Y j 0J o Er WJ ca = �4 00 aC m W 'V Q co W 2 D a Q QZ vu Z0 (A > o ti.j w o LL W Z �v...j� 0 i Ncp 7 O W N N W (n a Z J > O U � J d J S co uj IL Zuj z a/ w o m¢ rn = rn U z 0 a u u 0 w a 0 O z AG z � OD� � a w w 0 0 w o u u z z 00 iy O N F N � � N � N O r-I z N z SyTB Op pe Jimmy L Taggart A 22841 doe 09/19/2022 d88�oxeL E,�u g Q z 0- c) 0 O r > I.- Y w O U Q T zJ Jw O m U Q co 00 CO Q O w W D_ Z Z Q Q O w a QD O 04 0 W o_ ° o z cr 2 U Qx o 0 F- a o Q J Ir 04 � w �W 0 m < I a O 1- O 07 DESIGNED BY: 3.35 MULCHING MU 3.38 TREE PRESERVATION TP ---o-- AND PROTECTION A U a w � � OZ z U) O (D �Y j 0J o Er WJ ca = �4 00 aC m W 'V Q co W 2 D a Q QZ vu Z0 (A > o ti.j w o LL W Z �v...j� 0 i Ncp 7 O W N N W (n a Z J > O U � J d J S co uj IL Zuj z a/ w o m¢ rn = rn U z 0 a u u 0 w a 0 O z AG z � OD� � a w w 0 0 w o u u z z 00 iy O N F N � � N � N O r-I z N z SyTB Op pe Jimmy L Taggart A 22841 doe 09/19/2022 d88�oxeL E,�u g Q z 0- c) 0 O r > I.- Y w O U Q T zJ Jw O m U Q co 00 CO Q O w W D_ Z Z Q Q O w a QD O 04 0 W o_ ° o z cr 2 U Qx o 0 F- a o Q J Ir 04 � w �W 0 m < I a O 1- O 07 DESIGNED BY: AGF DRAWN BY: AGF CHECKED BY: JLT 00 DATE: 02-17-2021 SCALE: 1 "=30' JOB: 8438 SHEET: 21 OF26 — ---- — N w 2 U) w Z J U 5Q G .(�`R - � ,- --- .'�_-•' _ -- ,sue vv v v v v QQ / r — / — — — , / i MATCHLINE THIS SHEET A S A . 1"=30 \\ \ \ \ \ 3 ' � r LOT-13 \ / - 11,275SF mil, A /� I\VV\\ I gW�4p f �B l 1\ V A V A I ER THAN 3:1 \ \ \ \ D WITH LOW \ \ \ :TA11VE \ \ HER THAN \ \ \ OP�ND MATCHLINE SHEET 21 EROSION CONTROL MEASURES LEGEND 3.02 CONSTRUCTION ENTRANCE CE 3.05 SILT FENCE 3.05 SUPER SILT FENCE SF —x=— 3.07 ❑ IP O STORM DRAIN INLET PROTECTION 3.08CULVERT PROTECTIONLET ] CIP DID }� TEMPORARY 3.09 DIVERSION DIKE 3.13 SEDIMENT TRAP ST 3.14 SEDIMEBASNT SB 3.18 OUTLET PROTECTION OP 3.25 ❑ UTILITY STREA CROSSING M USC s ❑TEMPORARY 3.31 SEEDING I TS - �- 3.32 PERMENANT- SEEDING 3.35 MULCHING MU- 3.38 ❑ TREE PRESERVATION�- AND PROTECTION O / I CE S REAM,' 1 I � I S ss/ -- 60 0 60 120 1 A 7U a A M r v) $ Oz z U) o co -J J V1 F 0) J Er Qr 3J x Qi °U ¢� m az xW Ir Din �o �a ° JZ zvv � x > o w (7 9 v...j� � o aw N W Q Z J > O C)mLu a J O aZw z a/ w o m °i ¢x rn U z 0 a u u 0 w a z� OO z z 0 H H a w w w 0 0 o u u z z 00 N N iy O N N � N N O r-I ZN yO}4sSyTB Op pj�a Jimmy L. Taggart A 22841 sae 09/19/2022 d88/ON1L T'�0 g Q Z 0- O O r > IE F- Y w o U Q T z J J w a O m U Q 0 Cy) M � CE Q O z w w D z Q Q o a w a QD 0 04 0 w o_ ° o z cr � QoX� o QJ w w Fr g o Q J w 04 w �w 0 m Ir a O U 0 DESIGNED BY: AGF DRAWN BY: AGF CHECKED BY: JLT DATE: 02-17-2021 SCALE: AS SHOWN JOB: 8438 SHEET: 21-oF26 SEDIMENT TRAP CALCULATIONS SEDIMENT TRAP 1 (PHASE 1) SEDIMENT TRAP 6 Drainage Area (ac): 2.02 Wet Storage Req: 135.34 cy Dry Storage Req: 135.34 cy Total Storage Req: 270.68 cy Elev Side 1 Side 2 Area Vol (CO Vol (cy) Low Point: 418.0 1802.2 1:1 Side Slope wet wet Botom of Weir: 420.0 2189.2 3991.4 147.8 2:1 Side Slope dry dry Top of Weir 422.0 3045.4 5234.6 193.9 Weir Length (ft) 12.1 Weir Height (ft) 2.0 Top of Berm 423.00 Top of Weir 422.00 Bottom of Weir 4200. 0.0 0.0 Low Point 418.0 0.0 0.0 Berm Width (ft) 2.5 :DIMENT TRAP 2 Drainage Area (ac) 1.48 Wet Storage Req: 99.16 cy Dry Storage Req: 99.16 cy Total Storage Req: 198.32 cy Elev Side 1 Side 2 Area Vol (CO Vol (cy) Low Point: 413.0 1263.2 1:1 Side Slope wet wet Botom of Weir: 415.0 1568.2 2831.4 104_9 3:1 Side Slope dry dry Top of Weir 417.0 2657.2 4225.3 156.5 Weir Length (ft) 8.9 Weir Height (ft) 2.0 Top of Berm 418.00 Top of Weir 417.00 Bottom of Weir 415.0 &0 0.0 Low Point 413.0 0.0 0.0 Berm Width (ft) 2.5 :DIMENT TRAP 3 Drainage Area (ac): 1.78 Wet Storage Req: 119.26 cy Dry Storage Req: 119.26 cy Total Storage Req: 238.52 cy Elev Side 1 Side 2 Area Vol (CO Vol (cy) Low Point: 4100 2410.0 1:1 Side Slope wet wet Botom of Weir: 4120 2856.0 5266.0 195.0 3:1 Side Slope dry dry Top of Weir 414.0 3830.0 6686.0 247.6 Weir Length (ft) 10.7 Weir Height (ft) 2.0 Top of Berm 415.00 Top of Weir 414.00 Bottom of Weir 412.0 0.0 0.0 Low Point 410.0 0.0 0.0 Berm Width (ft) 2.5 SEDIMENT TRAP 4 Drainage Area (ac): 1.92 Wet Storage Req: 128.64 cy Dry Storage Req: 128.64 cy Total Storage Req: 257.28 cy Elev Side 1 Side 2 Area Vol (Cf) Vol (cy) Low Point: 398.0 1796.5 1:1 Side Slope wet wet Botom of Weir: 400.0 2195.0 3991.5 147.8 3:1 Side Slope dry dry Top of Weir 402.0 3571.9 5766.9 213.6 Weir Length (ft) 11.5 Weir Height (ft) 2.0 Top of Berm 403.00 Top of Weir 402.00 Bottom of Weir 400.0 0.0 0.0 Low Point 398.0 0.0 0.0 Berm Width (ft) 2.5 SEDIMENT TRAP 5 Drainage Area (ac) 1.88 Wet Storage Req: 125.96 cy Dry Storage Req: 125.96 cy Total Storage Req: 251.92 cy Elev Side 1 Side 2 Area Vol (CO Vol (cy) Low Point: 398.0 2003.8 1:1 Side Slope wet wet Botom of Weir: 400.0 2482.9 4486.7 166.2 2:1 Side Slope dry dry Top of Weir 402.0 3540.3 6023.2 223.1 Weir Length (ft) 11.3 Weir Height (ft) 2.0 Top of Berm 403.00 Top of Weir 402.00 Bottom of Weir 400.0 0.0 0.0 Low Point 398.0 0.0 0.0 Berm Width (ft) 2.5 Drainage Area (ac): 1.58 Wet Storage Req: 105.86 cy Dry Storage Req: 105.86 cy Total Storage Req: 211.72 cy Elev Side 1 Side 2 Area Vol (00 Vol (cy) Low Point: 402.0 1393.9 1:1 Side Slope wet wet Botom of Weir: 404.0 1698.8 3092.7 114.5 2:1 Side Slope dry dry Top of Weir 406.0 2787.8 4486.6 166.2 Weir Length (ft) 9.5 Weir Height (it) 2.0 Top of Berm 407.00 Top of Weir 406.00 Bottom of Weir 404.0 0.0 0.0 Low Point 402.0 0.0 0.0 Berm Width (ft) 2.5 SEDIMENT TRAP 7 Drainage Area (ac): 2.75 Wet Storage Req: 184.45 cy Dry Storage Req: 184.45 cy Total Storage Req: 368.90 cy Elev Side 1 Side 2 Area Vol (CO Vol (cy) Low Point: 424.0 1 2526.5 1:1 Side Slope wet wet Botom of Weir: 426.0 2962.1 5488.6 203.3 2:1 Side Slope dry dry Top of Weir 42&0 4530.0 7492.1 277.5 Weir Length (ft) 16.5 Weir Height (ft) 2.0 Top of Berm 429.00 Top of Weir 428.00 Bottom of Weir 426.0 0.0 0.0 Low Point 424.0 0.0 0.0 Berm Width (ft) 2.5 SEDIMENT TRAP 1A (PHASE 2) Drainage Area (ac): 1.91 Wet Storage Req: 127.97 cy Dry Storage Req: 127.97 cy Total Storage Req: 255.94 cy _ Elev Side 1 Side 2 Area Vol (cf) Vol (cy)- Low Point: 434.0 2090.9 1:1 Side Slope wet _ wet Botom of Weir. 436.0 2526.5 4617.4 _ 171.0 2:1 Side Slope dry dry _ Top of Weir 438.0 3920.4 6446.9 238=8 Weir Length (ft) 11.5 Weir Height (ft) 2.0 Top of Berm 439.00 Top of Weir 438.00 Bottom of Weir 436.0 0.0 0.0 Low Point 434.0 0.0 0.0 Berm Width (ft) 2.5 iEDIMENT TRAP 7A (PHASE 2) Drainage Area (ac): 2.52 Wet Storage Req: 168.84 cy Dry Storage Req: 168.84 cy - Total Storage Req: 337.68 cy Elev Side 1 Side 2 Area Vol (GO Vol (cy) Low Point: 432.0 2737.0 1:1 Side Slope wet wet Botom of Weir: 434.0 3466.0 6203.0 229.7 2:1 Side Slope dry dry Top of Weir 436.0 4552.0 8018.0 297.0 Weir Length (ft) 15.1 Weir Height (ft) 2.0 Top of Berm 437.00 Top of Weir 436.00 Bottom of Weir 434.0 0.0 0.0 Low Point 432.0 0.0 0.0 Berm Width (ft) 2.5 SEDIMENT TRAP 4A (PHASE 2 & 3) Drainage Area (ac): I 2.91 Wet Storage Req 94.97 cy Dry Storage Req: 194.97 cy Total Storage Req: 389.94 cy Elev Side 1 Side 2 Area Vol (cf) Vol (Cy) Low Point: 416.0 2751.2 1:1 Side Slope wet wet Botom of Weir: 418.0 3225.6 5976.8 221.4 2:1 Side Slope dry dry Top of Weir 420.0 4840.8 8066.4 298.8 Weir Length (ft) 17.5 Weir Height (ft) 2.0 Top of Berm 421.00 Top of Weir 420.00 Bottom of Weir 418.0 0.0 0.0 Low Point 416.0 0.0 0.0 Berm Width (ft) 2.5 sT TEMPORARY SEDIMENT TRAP , VARIABLE ORIGINAL VARIABLE GROUND ELEV. 1.0' 67 CU. YD./ACRE N VARIABLE+ N 67 CU. YD./ACRE (EXCAVATED) 4' MAX. FILTER CLOTH ORIGINAL GROUND ELEV. -SEE PLATE 3.13-1 COARSE AGGREGATECLASS I RIPRAP CROSS SECTION OF OUTLET CUSS I RIPRAP LENGTH (IN FEET) _ (IX DRAINAGE AREA _ (IN AC.) DIVERSION DIKE COARSE COARSE AGGREGATE \ / EXCAVATED / FILTER CLOTH 1AREA / ..COARSE AGGREGATE SHALL BE VDOT ;IN3, #357 OR #5 OUTLET (PERSPECTIVE VIEW) SOURCE: VA. DSWC PLATE. 3.13-2 sT TEMPORARY SEDIMENT TRAP MINIMUM TOP WID TH (W) REQUIRED FOR SEDIMENT TRAP EMBANKMENTS ACCORDING TO HEIGHT OF EMBANKMENT (FEET) SOURCE: VA. DSWC UTILITY STREAM CROSSI 4992 SECTION "A -A" Source: Va. DSWC FLUME PIPE CROSSING i EROSM CONTROL ]"� I ,FASU OM TO An LOCATED BELOW APPNDAONbI AREAS I WRIER f111W FLUME PIP[ :•�.• Jll • EKCAVATED TRENCH IEROSION OL FIROL M 1C 10 BE B I APPMM1CHUCCATOD ARAREAAS I PLAN VIEW CWKl f!�MN1 Y91ffi SECTION "l 325 Plate 325-3 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 3.5 2.5 3.0 4.0 3.0 3.0 4.5 3.5 4.0 5.0 4.0 4.5 ORIGINAL GROUND ELEV. OUTLET PROTECTION Q = 4.74 CFS Do = 15" Lo = 14' W = 17.75' D50 = 6" IP INLET PROTECTION SILT FENCE DROP INLET PROTECTION 2 X 4' WOOD FRAME DROP INLET WITH GRATE 1.5' MAX. FRAME i 3' MIN.I �`' GATHER �1 EXCESS UAT CORNERS PERSPECTIVE VIEWS STAKE -- FABRIC C I U� a i, A IIIII 9 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 Ell Manual. 1988 PLATE 3.07-1 PLATE. 3.13-1 Mu MULCH IP INLET PROTECTION BLOCK L7G GRAVEL CURB INLET SEDIMENT FILTER CURB INLET -------- WIRE SCREEN I CONCRETE BLACK GRAVEL FILTER 7 WATER WITH OVERFLOW FILTERED WATER SEDIMENT - b F s SEDIMENT WIRE SCREEN • + 2• X 4• WOOD STUD �+ CURB INLET SPECIAL APPLICATION THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS WHERE AN OVERFLOW CAPABILITY IS NECESSARY TO PREVENT EXCESSIVE PONDING IN FRONT OF THE STRUCTURE. • GRAVEL SHALL BE VDOT //3, #357 OR #5 COARSE AGGREGATE SOURCE: VA. DSWC PLATE 3.07-8 IP INLET PROTECTION 1992 3.35 Source: Va. DSWC TABLE 3.35-A ORGANIC MULCH MATERIALS ANDAPPLICATION RATES RATES: MLIL(:ILES. NOTES: Per Acre Per 1000 sq. ft. Straw or Hay 1$ - 2 tans 70 - 90 lbs. Free from weeds and coarse (Minimum 2 matter. Must be anchored. tons for Spread with mulch blower winter cover) or by hand. Fiber Mulch Minimum 35 lbs. 1}o not use as mulch for 15(10 lbs. winter cover or during but, dry periods.' Apply as Slurry. Corn Stalks 4 - h tons 185 - 275 tbs. Cut or shredded in 4-6' lengths. Air-dried. Do not use in fine turf areas. Apply with mulch blower or by hand. Wood Chips 4 - 6 tans 1$5 - 275 lbs. Free of coarse matter. Air- dried. Treat with 12 lbs nitrogen per ton. Do not use in fine tT1CF areas. Apply with mulch blower, chip handler, or by hand. Bark Chips 50 - 70 cu. 1-2 cu. yds. Free of coarse matter. Air - Or yds, dried. Do not use in fide Shredded turf areas. Apply with Bark mulch blower, chip handler, Or by hand. When fiber mulch is the only available mulch during periods when straw should be used, apply at a minimum rate o4 2()0p lbs./ac. or 45 lbs./10(10 sq. ft. 1 \ \� CIL 3Do ��' / Do 36 i 6 J A 1 � \ 1 o I OUTLET PROTECTION 2 Q = 28.75 CFS Do = 36" La = 33.6, D50 = 6" SOURCE: VA. DSWC PLATE. 3.07-3 oP OUTLET PROTECTION PIPE OUTLET CONDITIONS A A V a ULI �8 U Z ZaN O o� FOu7i3 J 0 Q T J = o C) Q m y w `•O 0O (A Ir O W oa Maw JZ_ vU r(� Z V 0> o �j N O ^I 1: U_ Z Gn o z N CP Ir O W N UL N 0 Q UL J > O ^ >_ a T O azw Z OU O W Ud 0 rn = rn U Z O a it V w w a 0 OO z z O a w w �2i� 2i 2 w z z >> 0 U 'H O N N Q r 0 � � o z N DESIGNED BY: AGF DRAWN BY: AGF CHECKED BY: JLT �� P ai / J 019 Jimmy LTaggart Uc. Ni. A 'paj409 19�2022 �1!~ ZONAL g a Z C) 0 0 r > � Y W a_ 0 U a � 0 O T 2 w Z J J W Q O m U Q 00() IEW CE W W 0 E z Q co o z LIJ i (0 U 04 0 W < o C) Z CC � � U Q X ° o W ~ Q o P� Q J W m 0 M a 0 O_y U) 11 DATE: 02-17-2021 SCALE: 1"=30' JOB: 8438 SHEET: 23 OF26 TP TREE PROTECTION DRIP LINE PROTECTIVE DEVICE MAXIMUM LIMITS OF CLEARING AND GRADING PROPOSED GRADING, ww w w wwW w w w w ,Iw WHERE DRIPLINE IS LESS THAN 5' w,wr,w CONSTRUCTION OPERATIONS RELATIVE TO THE LOCATION OF PROTECTED TREES DD CLEAN WATER DIVERSION DIVERSION 10% SrrrL MENT Off FREE BOARD Source: Va. DSWC S� SUPER SILT FENCE Plate 3.12-1 Source: Adapted from losiallatic"f Straw and Fabric Filter Barriers for Sediment Control Sherwood and Wyant Plate 3.05-1 SUGGESTED TEMPORARY SEEDING MIXTURE FERTILIZER: 10-20-10: 1,000 LBS/ACRE SEPTEMBER-FEBRUARY 15: 50% ANNUAL RYE & 50% WINTER RYE 100 LBS/ACRE FEBRUARY 16-APRIL 30: ANNUAL RYE 100 LBS/ACRE MAY -AUGUST: GERMAN MILLET 50 LBS/ACRE OTHER OPTIONS EXIST, SEE VA EROSION AND SEDIMENT CONTROL HANDBOOK. SUGGESTED PERMANENT SEEDING MIXTURE LIME: 2 TONS/ACRE FERTILIZER: 10-20-10 1,000 LBS/ACRE MARCH -MAY 15: KENTUCKY 31 FESCUE 200 LBS/ACRE, ANNUAL RYE 20 LBS/ACRE MAY 16-AUGUST 15: KENTUCKY 31 FESCUE 200 LBS/ACRE, FOXTAIL MILLET 20 LBS/ACRE AUGUST 16-OCTOBER: KENTUCKY 31 FESCUE 200 LBS/ACRE, ANNUAL RYE 20 LBS/ACRE NOVEMBER-FEBRUARY: KENTUCKY 31 FESCUE 200 LBS/ACRE, WINTER RYE 20 LBS/ACRE cIP CULVERT INLET PROTECTION SILT FENCE CULVERT INLET PROTECTION T— ENDWA SILT FENCE *DISTANCE IS e' MINIMUM IF FLOW D TOWARD EMBANKMENT Flow OPTIONAL STONE COMBINATION .1Ls•,��i*�, "VDOT /3, #357, J5, ISE OR #57 COARSE AGGREGATE To REPIACE SILT FENCE IN ' HORSESHOE - WHEN HIGH VELOCITY OF FLOW IS EXPECTED RIPRAP SOURCE: ADAPTED from VDOT Standard Sheep and Va. DSNC PLATE. 3.08-1 RR RIPRAP TOE REQUIREMENTS FOR BANK STABILIZATION FILTER CLOTH UNDERLINER (PREFERRED) GRANULAR FILTER SOURCE: Adapted from VDOT Drainage Manual PLATE. 3.19-1 Ts TEMPORARY SEEDING MIXTURES FOR THE PIEDMONT AREA TABLE 26 TEMPORARY SEEDINGS BY RATES, DEPTHS, AND DATES Seeding Rate Planting depth Seeding zones and Seeding Date Species Per Lbs/1000 7a and 7b 6b 6a and 5b acre Sq. ft (Inches) 2/1- 5/1- 8/15- 3/1- 5/1- 8/15- 3/15- 6/1- 8/1- 4/30 8/14 11/30 4/30 8/14 11/15 5/31 7131 10/31 Choose one: BY BY BY Barley 2.5 bu. 2.80 1-2 X - 10115 X - 10/15 X - 1011 Oats 3 bu. 2.21 1-2 X - - X - - X - - Rye (4) 2.5 bu. 3.22 1-2 X - X X - X X - X Barior Rye lus 10/15 10/15 10/1 150 lbs. 3.45 1 X X X X X X Foxtail X X X X X X X X X millet 5 Weeping 4lbs. 0.09 114-1/2 - X - - X - - X - lovegrass61 Annual ryegrasS 50 lbs. 1.15 1/4-1/2 X - 11/1 X - 11/1 X - 8/15 Millet (7) 50 lbs. 1.15 112 - X - - X - - X - (1) Applicable on slopes of 3:1 or flatter (2) Refer to figure A- Adopted from USDA, ARS Miscellaneous Publication #1475, January 1990 (3) Between fall and spring seeding dates, use mulch only if ground is frozen and reseed when thawed (4) May be used as a nurse crop for late fall/early winter permanent seedings, add 56 Ibs/ac. to the permanent seeding mixture (4) Maryland State Highway Administration Temporary Seed Mix (5) May be used as a nurse crop for mid -summer permanent seedings. Add 2 Ibs/ac to permanent seed mix. (6) May be used as a nurse crop for mid -summer permanent seedings. Add 10 Ibs/ac. to the permanent seeding mix. SILT FENCE CONSTRUCTION OF A SILT FENCE (WITHOUT WIRE SUPPORT) 1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH UPSLOPE ALONG THE LINE OF 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. 4. RACKFB,L AND COMPACT THE EXCAVATED SOB.. SHEET FLOW INSTALLATION (PERSPECTIVE VIER') SF/STONE NOT REQUIRED AFTER SLOPES ARE STABILIZED DOWNSLOPE OF OUTFALL POINTS A SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION (FRONT ELEVATION) R Adapted tram Installation of Straw and Fabric Filter Barriers for Sediment ControUL BBIIC — PERMANENT SEEDING FERTILIZATION Ps AND MAINTENANCE TABLE 24 Maintenance Fertilization for Permanent Seedings Use Soil Test Recommendation or Rates Shown Below Seeding Mixture Formulation LIDS. per Lbs. per Time Mowing Acre 1000 sf Tall fescue makes 10-10-10 500 11.5 Yearly, or as *Not closer than 3" if up 70% or more or 400 g.2 needed fall occasional mowing is of cover. 30-10-10 desired. Crownvetch Spring the year Do not mow crownvetch Service lespedeza 0-20-0 400 9.2 followin g establishment Birdsfoot trefoil and every 4-5 years thereafter. Fairly uniform Fall the year Not required. not closer stand of Tall following than 4" if occasional Tescue & Service 5-10-10 500 11.5 establish- ment mowing is desired, and lespedeza, or and every 4-5 then in fall after seed Birdsfoot Trefoil. years thereafter. has matured. Weeping Spring the year Not required. not closer Lovegrass & following than 4" if occasional Service lespedeza 5-10-10 500 11.5 establishment mowing is desired, and fairly uniform plant and every 3 4 fall after sericea has distribution years thereafter. matured. Red & etuck 20-10-10 250 5.8 September, 30 Mow no closer than 2" for red fescue and Ky fescue,, Kenntuck y days later May bluegrass; rass; and closer, g bluegrass, hard 20-10-10 100 2.3 20-June-30, if than 3" for fescue. fescue mixture: needed. PERMANENT SEEDING MIXTURES FOR PS TUJ lnlCr%RA^K1'r AnCA TABLE 25 TOTAL LBS. PER ACRE MINIMUM CARE LAWN - COMMERCIAL OR RESIDENTIAL 175-200 LBS. - KENTUCKY 31 OR TURF -TYPE TALL FESCUE 95-100% - IMPROVED PERENNIAL RYE GRASS 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. LOW -MAINTENANCE SLOPE (STEEPER THAN 3:1) - KENTUCKY 31 FESCUE 108 LBS. - RED TOP GRASS 2 LBS. - SEASONAL NURSE CROP* 20 LBS. - CROWN VETCH** 20 LBS. TOTAL 150 LBS. *USE SEASONAL NURSE CROP IN ACCORDANCE WITH SEEDING DATES AS STATED BELOW: FEBRUARY 16TH THROUGH APRIL 30TH............ ANNUAL RYE MAY 1ST THROUGH AUGUST 15TH ................ FOXTAIL MILLET AUGUST 16TH THROUGH OCTOBER 31ST........... ANNUAL RYE NOVEMBER 1ST THROUGH FEBRUARY 15TH ........ANNUAL 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 30 LBS./ACRE. ALL LEGUME SEED MUST BE PROPERLY INNOCULATED. WEEPING LOVEGRASS MAY BE ADDED TO ANY SLOPE OR LOW MAINTENANCE MIX DURING WARMER SEEDING PERIODS; ADD 10- 20 LBSJACRE IN MIXES. cE CONSTRUCTION ENTRANCE (PAVED) STONE CONSTRUCTION ACCESS EXISTING GRADE CONSTRUCTION ACCESS EXISTING 2% r3" SM-2A ASPHALT TOP 5)0/ 6" MIN. 21A AGGREGATE BASE FILTER CLOTH r-, rir�rn r �O .2% EXISTING / 2% — 1 — 2% PAVEMENT -/ 1—POSITIVE DRAINAGE *MUST EXTEND FULL TO SEDIMENT WIDTH OF INGRESS TRAPPING DEVICE AND EGRESS PLAN OPERATION POSITIVE DRAINAGE TO SEDIMENT TnAnnlnln nl-nnlr SECTION A -A NOTE: A minimum water tap of 1" must be installed with a minimum 1" ballcock shutoff valve supplying a wash hose with a diameter of 1.5" for adequate constant pressure. Wash waster must be carried away from the paved construction entrance to an approved settling area to remove sediment. All sediment shall be prevented from entering storm drains, ditches, or watercourses. cRs CONSTRUCTION ROAD STABILIZATION 6" SUBBASE (21A) 10' 10' TRAVEL LANE TRAVEL LANE J-HOOK DIRECTION OF x SURFACE FLOW x NOTE: x x UP -GRADIENT R3' SILT FENCE AND 1 J-HOOK ARE ONE X CONTINUOUS LINE o� r x a x NOTE: SPACING I I I DISTANCE SHALL NOT EXCEED 50' X x \ X X J-HOOKS SHALL BE INSTALLED AT AN ANGLE OF 30 DEGREES OR GREATER FROM PARALLEL TO THE CONTOUR 404 �Jr 402 400 k �X CONTOURS U a rG ULI OZ zdcNu O (0 Y j M fit')^ QO 3 Ld J o Vl J = Ca 00 ¢� DIDW 0 to Ir W _jQ Ma Q Z v o Z0 (A > o ti.j up o F�+/��1 LL upZ Iv...j� 0 i N CP a7 w N Lu N W z Q J > O ^ co CL a J S aZW z a/ ° o w¢ a = rn U Z O F- U U W 0 H Q 0 0 z Z�� OD� � d w w 2E 2 z z UV U O N w N O N d1 N O r-I O N Z O}4�SyTI{ Op ple Jimmy L Taggart A 22841 BOA 09/19/2022 d88ZONAL EEO Z Q Z go Ir O T Y CE _ a O U Q 4 o O T 2 w Z J J W Q O m 04 U Q Q O W W w E- ZCl) Q O Z � a- U O E-I' 0 Uj ILL< U CD zcr 2� L) H- Q x ° o Q Q Fr O w Q J � W 2 m 3: Lij < Ir a O O U DESIGNED BY: AGF DRAWN BY: AGF CHECKED BY: JILT DATE: 02-17-2021 SCALE: 1 "=30' JOB: 8438 SHEET: 24 OF26 14 I•/ Conceptual Drawing(Approx.) Drainage Area 1(Total Area in sf. 144860 Category C A (sf) CA Paved and Roof Areas 0.9 66607 59946 Residential 0.45 97104 43697 Apartments/Townhomes 0.7 4447 3113 Lawns 0.35 0 0 Drainage Area 2 (Total Area in sf. 4) 154536 Category C A (sf) CA Paved and Roof Areas 0.9 69779 62801 Residential 0.45 101728 45778 Apartments/Townhomes 0.7 4659 3261 Lawns 0.35 33594 11758 Drainage Area 3 (Total Area in sf. 4) 140208 Category C A (sf) CA Paved and Roof Areas 0.9 63435 57092 Residential 0.45 92480 41616 Apartments/Townhomes 0.7 4235 2965 Lawns 0.35 21647 7576 Oral nage Area 4 (Total Area in sf. ->) 250619 Category C A CA Paved and Roof Areas 0.9 117355 105619 Residential 0.45 171088 76990 Apartments/Townhomes 0.7 7835 5484 Lawns 0.35 4390 1537 Totals .I. CA Paved and Roof Areas 285458 Residential(10k-12kftA2) 208080 Apartments/Townhomes 14823 Lawns 20871 Total CA's 529231 Drainage Area 1(Total Area in sf. -->) 696910 Category C I A (sf) CA Paved and Roof Areas 0.9 309681 278713 Residential (-10,000ftA2) 0.45 81041 36468 Residential(12,000ftA2) 0.45 132478 59615 TH/Apartment 0.7 84163 58914 Lots 1/2 ac or more 0.4 27009 10804 Lawns 0.351 625381 21888 Total CA's 466402 PERCENT IMPERVIOUS CALCULATIONS Plan Impervious Area Percent Impervious Approved Re -Zoning Plan (ft2) 317200 23.7% Current Design (ft) Total Site Area (ac): 309700 30.7 23.2% kL L STORMWATER MANAGEMENT COMPLIANCE SUMMARY THE DEVELOPMENT OF BELVEDERE BLOCK 10, WILL OCCUR IN A SINGLE PHASE OF CONSTRUCTION. THE COMPLETED PROJECT WILL UTILIZE GRANDFATHERED, DIRECT DISCHARGE TO FACILITATE CHANNEL AND FLOOD PROTECTION. STORMWATER RUNOFF WILL BE COLLECTED AND CONVEYED IN A PIPED DISCHARGE TO THE RIVANNA RIVER. GENERAL IN ACCORDANCE WITH OVAC25-870-48 SECTION A.1, 2, AND 3 THIS PROJECT WAS APPROVED BY ALBEMARLE COUNTY AS A PROFFERED CONDITION OF THE BELVEDERE NMD. THE ORIGINAL APPROVAL WAS IN OCTOBER OF 2005 AND LAST AMENDED ON JULY 22, 2014. AS SUCH THE COUNTY IS REQUIRING LAYOUT WHICH ADHERES AS CLOSELY AS POSSIBLE TO THE PROFFERED PLAN OF DEVELOPMENT. THEREFORE, THIS MEETS THE REQUIREMENTS OF A 1, 2, AND 3, WHICH CONFIRMS GRANDFATHERING OF THE TECHNICAL CRITERIA PART IIC, AS WELL AS SECTION C WHICH ALLOWS EXTENSION OF THE PART IIC CONSIDERATION FOR AN ADDITIONAL PERMIT CYCLE. THE NEXT PERMIT CYCLE BEGAN ON JULY 1, 2019 WHICH IS STILL IN EFFECT THUS CONFIRMING THE GRANDFATHERED STATUS. REGARDING WATER QUALITY (9VAC25-870-63): GRANDFATHERED: THE APPROVED REZONING PLAN CONTEMPLATED PARTIAL PERIMETER CAPTURE USING BIOFILTERS FOR WATER QUALITY WHICH WERE SHOWN GRADED INTO (NOW) COUNTY PROTECTED STEEP SLOPES. WATER QUANTITY CONTROLS WERE SHOWN WITH UN -DETAILED DISCHARGE AT THE TOP OF COUNTY PRESERVED SLOPES. THAT PRACTICE WILL NOT BE ALLOWED DUE TO STEEP SLOPE REGULATIONS. THEREFORE, WE PROPOSE THAT WATER QUALITY BE ADDRESSED THROUGH NUTRIENT CREDIT PURCHASE USING THE NUTRIENT POUNDAGE CALCULATED BY THE ORIGINAL METHODOLOGY AT THE TIME OF APPROVAL. (THE COUNTY'S INTERIM STORMWATER SPREADSHEET). NARRATIVE OF COMPARATIVE ANALYSIS FOR RUNOFF: THE RATIONAL METHOD WAS SELECTED SINCE IT IS A RELATIVELY QUICK WAY TO ESTIMATE RUNOFF. ADDITIONALLY, THE PROJECT LIMITS HAVE NOT SIGNIFICANTLY CHANGED SINCE THE RE -ZONING PLAN, THEREFORE, THE INTENSITY/DURATION OF THE RAINFALL WAS ASSUMED TO BE IDENTICAL, AND THE COMPARATIVE ANALYSIS WAS BASED UPON LAND USE AND SQUARE FOOTAGE CALCULATIONS. THESE "CA" FACTORS PROVIDE AN EQUAL BASIS UPON WHICH TO COMPARE BOTH OF THE DRAWINGS. C-FACTORS FOR LAND USAGE WERE TAKEN DIRECTLY FROM APPENDIX 6E-1 OF THE VDOT DRAINAGE MANUAL (SEE LEFT). THE APPROVED RE -ZONING PLAN WAS DIVIDED INTO FOUR SEPARATE DRAINAGE AREAS, WHEREAS THE CURRENT DESIGN PLAN HAS ONE DRAINAGE AREA FOR THE ENTIRE SITE. THE TOTAL "CA" FACTOR FROM THE CONCEPTUAL DRAWING IS 529,231. THE TOTAL "CA" FACTOR FROM THE CURRENT DESIGN IS 466,402. BECAUSE THE RAINFALL INTENSITY IS CONSIDERED THE SAME OVER THE SITE VICINITY, IT IS THEREFORE CLEAR THE CONCEPTUAL DESIGN PRODUCED GREATER RUNOFF. THE PERCENT OF IMPERVIOUS AREA IN THE APPROVED RE -ZONING PLAN WAS CALCULATED TO BE 20%. SIMILARLY, THE CURRENT DESIGN WAS ALSO CALCULATED TO BE 20% OF THE TOTAL AREA. THEREFORE, THE POLLUTANT REMOVAL REQUIREMENT DID NOT INCREASE FROM THE APPROVED RE -ZONING PLAN TO THE CURRENT DESIGN. THE POLLUTANT REMOVAL REQUIREMENT OF THE CURRENT DESIGN IS 3.16 LBS/YR. VA DCR SWPP Performance Based Water Quality Calculation Procedure Project: Belvedere Phase 3 Block 10 Locality: Albemarle County Date: 16Sep-22 Situation Worksheet No. 2 Srunn Lary of Situation 2 criteria: fiom calculation procedure STEP 1 thtu STEP 3, Worksbeet 1: Area= 30.7 ac. I post= 23.7% _ I watershed= 16% I existing= 0% Time Iexlsnoy 0% :_ 40ersbed 16% ]. - and TNe 1post 23.7% > lwotershed 16% Sten 4 Determine the relative pre -development pollutant load Lryre(xarershea) _ [0.05 + (0.009 x loat<rshed)] x A x 2.28 (Equation 5-16) wbele: 4.(t<at<ra,ed)relative pre -development total phosphorous load (pounds per year) lxatershed - °same laad cover condition for specific watershed or locality or the Chesapeake Bay default value of I6%(perceat expressed iu whole numben) A - applicable area (acres) I-pre(xatershea) _ [0.05+ (0.009 x 16% x 30.7 x 2.28 pounds per year _ Steo 5 Determine the relative -development load post pollutant Lpo.t = [0.05 + (0.009 x Ip°a)] x A x 2.28 (Equation 5-21) where: Lport = relative post -development total phosphorous bad (pounds per year) Ipost = post -development unpervious cover (percent expressed niwhole nunbers) A = applicable area (acres) Lp°st = [0.05 + (0.009 x 24% )] x 30.7 x 2.28 = 18.43 ponnxls per year Sten6 Determine the relative pollutant removal re quireme at(RR). RR = Iv°a - l-vr<(xatera,ea) RR = 18.4 - 13.6 RR= 4.85 pounds per year APPROVED RE -ZONING PLAN POLLUTANT REMOVAL REQUIREMENT CALCULATIONS Chapter 6 - Hydrology Appendix 6E-1 Rational Method Runoff Coefficients Recommended Coefficient of Runoff Values for Various Selected Land Uses Description of Area Runoff Coefficients Business: Industrial and Commercial 0.80-0.90 Apartments and Townhomes 0.65-0.75 Schools 0.50-0.60 Residential - lots 10,000 ft. 0.40-0.50 - lots 12,000 ft. 0.40-0.45 - lots 17,000 sq. ft. 0.35-0.45 - lots '% acre or more 0.30-0.40 Parks, Cemeteries and Unimproved Areas 0.20-0.35 Paved and Roof Areas 0.90 Cultivated Areas 0.50-0.70 Pasture 0.35-0.45 Lawns 0.25-0.35 Forest 0.20-0.30 Steep Grass 2:1 ` 0.40-0.70 Shoulder and Ditch Areas " 0.35-0.50 Comments: 1. The lowest range of runoff coefficients may be used for flat areas (areas where the majority of the grades and slopes are 2% and less). 2. The average range of runoff coefficients should be used for intermediate areas (areas where the majority of the grades and slopes are from 2% to 6%). 3. The highest range of runoff coefficients shall be used for steep areas (areas where the majority of the grades are greater than 6%), for cluster areas, and for development in clay soil areas_ 4. See Appendixes 6E-2, 6E-3, 6E-4 and 6E-5 for runoff coefficients with the Cf factor applied. 'Lower runoff coefficients should be used for permanent or established conditions (post - construction), i.e. sizing stormwater management basins. `Higher runoff coefficients should be used to design roadside ditch linings (construction). The design considers the ditch lining as not yet established. Comments: Runoff Coefficients compiled from various sources. 1 of 1 VDOT Drainage Manual VDOT DRAINAGE MANUAL APPENDIX 6E-1 VA DCR SWPP Performance Based Water Quality Calculation Procedure Prgect: Belvedere Phase 3 Block 10 Locality: Albemarle County Date: 16-Sep-22 Situation Worksheet No. 2 Summary of Situation criteria: fiom calculation procedure STEP 1 dim STEP 3, Worksheet 1: Area= 30.7 ac. I post- 23.2% I watershed= 16°k I existing 0% TNe Iexistinp 0% < Ixarers Lea 16% and Time Ip°sr > Ixarer.hea 16% Step 4 Determine the relative pre -development pollutant load (h,ee). 1-pr<(xar<r:loca)= [0.05 + (0.009 x I,,tnsl,,d)] x A x 2.28 (Equation 5-16) where: Lp,r(xatashea)relative pre -development total phosphorous bad (pounds per year) lxatershed = average land coca condition for specific watershed or locality or the Chesapeake Bay defann value of I6%(parart exp,essedm whole numbers) A = applicable area (acres) Lpre(xatershed) _ [0.05 + (0.009 x 16% x 30.7 x 2.28 potnnds per year Steps Determine the relative post -development pollutant load(Lp°a). Lp°a = [0.05 + (0.009 x Ip°a)] x A x 2.28 (Equation 5-21) Where: I.P°a = relative post -development total plrosplroronus load (ponmcls per year) Ip°rt = post-developmentimpervious cover (percent expressed nrwlnxle nnrnbens) A = applicable area (acres) Lpxst - [0.05 + (0.009 x 23% )] x 30.7 x 2.28 = 18.11 pounds per yea Step 6 Determine the relative pollutant removal requirement (RR). RR - Lp°a - Lpr<(xat<ra,<al RR = 18.1 - 13.6 RR= 4.54 pormds per year CURRENT DESIGN POLLUTANT REMOVAL REQUIREMENT CALCULATIONS A U a m r r-$ U Z Zcn d C)0 ¢0 o J Er J U) �yy4 00 =w m "e7 0in wo D W OQ �Q 0 Qyl QZ vU Z� 0> o I�l^ 0 wZ 0 Z � m d W �ryr�1 a w Z J O U w > a J _ CO C)aZw z o0 U 0 w ¢ �a m= obi U Z 0 a s u w 0 w a 0 O Z AG Z 0 � a Z w 0 0 w o u u z z 0 0 V u N N ty O N F N � N tT N O C5 N Z Op pj�a y 0//wfl Jimmy L Taggart A 22841 boas 09/19/2022 d88/01r1L T'�0 g a Z dIr O T > Y W o U a T Z J J W z O m U Q O Q O0 W W IL o Z Q Q O E' ILL 2 N o i QLV - U ma fr � P- P� X ° Q W ILL J CE c M 0 O O U DESIGNED BY: AGF DRAWN BY: AGF CHECKED BY: JILT DATE: 02-17-2021 SCALE: 1 ":1000' JOB: 8438 SHEET: 25 OF 26 LIMIT OF ANALYSIS AT NORMAL RIVER ELEVATION: 321.05' POINT OF DISCHARGE 100-YR FLOODPLAIN DRAINAGE AREA TO LIMIT OF ANALYSIS: 9.87 Ac. 0. allwy)EMKII // Iff Iff =1II- �111 ICI ICI 1 '\F IN EM f SEE INSET BELOW gCROSSN,QESP\\. POST -DEVELOPMENT DRAINAGE AREA SCALE 1' = 200' I \ �Ilil /I1`l1 1 /I//1 \/1 \ NARRATIVE: FROM "LETTER FOR WATER QUANTITY REQUIREMENTS" SENT TO THE COUNTY ON 5-28-21: q J���I IN ACCORDANCE WITH VIRGINIA ADMINISTRATIVE CODE SECTION 9VAC25-870-55 STORMWATER MANAGEMENT PLAN, THESE PLANS ARE DESIGNED TO ADHERE TO VIRGINIA CODE. STORMWATER RUNOFF WITHIN THE BLOCK 10 DEVELOPMENT WILL BE COLLECTED AND CONVEYED THROUGH A MANMADE STORMWATER PIPE NETWORK TO \ 1 I / ONE CONCENTRATED OUTFALL AT THE RIVANNA RIVER. THE NON -EROSIVE PASSAGE OF THE 2-YR EVENT WILL DISCHARGE AT THE NORMAL RIVER ELEVATION (NRE) OF THE RIVANNA, AND ADEQUATE CHANNEL. THEREFORE, THIS PROJECT IS IN COMPLIANCE OF CHANNEL PROTECTION, AS MANMADE IMRPOVEMENTS (SECTION \ \ \ \\ LIMIT OF ANALYSIS 1.A OF 9VAC25-870.B) WILL BE UTILIZED ALL THE WAY TO THE NRE OF THE RIVER. THIS IS THE POINT OF ANALYIS OF THE SYSTEM AND THE 1% RULEI\ \\ \ \\\\\\ \\\\\\ I\\) DEMONSTRATE AT NORMAL RIVER CAPACITY OF THE CHANNEL AND NEGATES ANYSON NEEID FORADETENREM�ON OR ENERGYVES ANY NEEDTBA ANCEEFURTHRACCORDING TO II C FLOOD INSURANCE STUDY NO. 51003CV000C, THE SOUTH FORK RIVANNA RIVER'S DRAINAGE AREA AT THE ELEVATION: 321.05' PROJECT OUTFALL IS APPROXIMATELY 268 SQUARE MILES AND THE PROJECT DRAINAGE AREA IS 9.87 ACRES - / WELL BELOW 1%. IN REFERENCE TO THE FLOOD PROTECTION, SECTION 9VAC25-870-66-C-2.A, WILL BE UTILIZED TO SATISFY THE REQUIREMENTS SET IN VIRGINIA CODE. THE PROJECT IS IN COMPLIANCE WITH FLOOD PROTECTION SINCE THE ENTIRE 10-YEAR PEAK FLOW IS CONFINED WITHIN PIPES AND CONVEYED TO THE DISCHARGE POINT WHICH 7 IS BELOW A FEMA MAPPED FLOODPLAIN. ON 09 FEBRUARY 2021, THE DESIGN ENGINEER VISITED THE PROPOSED LOCATION OF THE OUTFALL FOR THE STORM SEWER DISCHARGE POINT TO THE RIVANNA RIVER. THE DESIGN DISCHARGE NECESSITATES THE DETERMINATION OF THE NORMAL RIVER STAGE OF THE RIVANNA AT THIS POINT. A SURVEY FIELD CREW ACCOMPANIED THE DESIGN ENGINEER AND COLLECTED FIELD TOPOGRAPHY OF THE AREA OF THE DISCHARGE POINT. THE DESIGNER SELECTED A POINT TO REPRESENT THE NORMAL \,\ RIVER STAGE, VERIFIED VISUALLY AT THE NATURAL VEGETATION LINE. THE FIELD CREW DETERMINED NRE AT A,THAT POINT TO BE DRAWINGS TO DEFINETHE RIVER 2(STANDARD E ELEVATION AND DISCHARGE PROJECT THIS ELEVATIONELEVATION WAS USED WITHIN THE DESIGN INSET NOTE: ALL UNITS TO HAVE SPLASH BLOCKS AT FOUNDATION DRAIN & ROOF DOWNSPOUTS TO ENSURE SHEET FLOW. THE YARD AREAS WILL BE GRADED/SEEDED/LANDSCAPED AS NECESSARY TO FULLY STABILIZE THE SITE TO PREVENT CONCENTRATED FLOW LEAVING THE REAR OF ANY RESIDENTIAL LOT WITHIN THE DUNLORA VILLAGE DEVELOPMENT. STORMWATER MANAGEMENT COMPLIANCE SUMMARY THE DEVELOPMENT OF BELVEDERE BLOCK 10, WILL OCCUR IN A SINGLE PHASE OF CONSTRUCTION. THE COMPLETED PROJECT WILL UTILIZE GRANDFATHERED, DIRECT DISCHARGE TO FACILITATE CHANNEL AND FLOOD PROTECTION. STORMWATER RUNOFF WILL BE COLLECTED AND CONVEYED IN A PIPED DISCHARGE TO THE RIVANNA RIVER. GENERAL IN ACCORDANCE WITH OVAC25-870-48 SECTION A.1, 2, AND 3 THIS PROJECT WAS APPROVED BY ALBEMARLE COUNTY AS A PROFFERED CONDITION OF THE BELVEDERE NMD. THE ORIGINAL APPROVAL WAS IN OCTOBER OF 2005 AND LAST AMENDED ON JULY 22, 2014. AS SUCH THE COUNTY IS REQUIRING LAYOUT WHICH ADHERES AS CLOSELY AS POSSIBLE TO THE PROFFERED PLAN OF DEVELOPMENT. THEREFORE, THIS MEETS THE REQUIREMENTS OF A 1, 2, AND 3, WHICH CONFIRMS GRANDFATHERING OF THE TECHNICAL CRITERIA PART IIC, AS WELL AS SECTION C WHICH ALLOWS EXTENSION OF THE PART IIC CONSIDERATION FOR AN ADDITIONAL PERMIT CYCLE. THE NEXT PERMIT CYCLE BEGAN ON JULY 1, 2019 WHICH IS STILL IN EFFECT THUS CONFIRMING THE GRANDFATHERED STATUS. STORMWATER QUANTITY COMPLIANCE (9VAC25-870-86 PART B SPECIFICALLY DEALS WITH CHANNEL PROTECTION): IN ACCORDANCE WITH CHANNEL PROTECTION (SECTION B.) OF 9VAC35-870-66 OF VIRGINIA LAW; GRANDFATHERED: THE APPROVED REZONING PLAN WAS SILENT ON WATER QUANTITY HANDLING. THE PREVAILING DESIGN METHODOLOGY OF THE DAY WAS THE "1% RULE". TYPICALLY, DEVELOPMENTS WHICH DISCHARGED AT/INTO A MAJOR RIVER (IN THIS CASE, THE RIVANNA) WOULD DISCHARGE WHERE THE CONTRIBUTING DRAINAGE AREA UPSTREAM IS GREATER THAN 100 TIMES THE AREA OF THE DEVELOPMENT. HERE THE RIVANNA SERVES MANY THOUSANDS OF ACRES, AND A DIRECT DISCHARGE TO THE RIVER WILL MEET THAT CRITERION. OUR PLAN WILL DISCHARGE DIRECTLY AT THE NORMAL POOL ELEVATION OF THE RIVER TO MINIMIZE EROSION IMPACTS AND STREAMBANK DISTURBANCE. STORMWATER QUANTITY COMPLIANCE (9VAC25-870-86 PART C SPECIFICALLY DEALS WITH FLOOD PROTECTION): GRANDFATHERED: THE APPROVED REZONING PLAN WAS SILENT ON WATER QUANTITY HANDLING. THE PREVAILING DESIGN METHODOLOGY OF THE DAY WAS THE "1% RULE". TYPICALLY, DEVELOPMENTS WHICH DISCHARGED AT/INTO A MAJOR RIVER (IN THIS CASE, THE RIVANNA) WOULD DISCHARGE WHERE THE CONTRIBUTING DRAINAGE AREA UPSTREAM IS GREATER THAN 100 TIMES THE AREA OF THE DEVELOPMENT. HERE THE RIVANNA SERVES MANY THOUSANDS OF ACRES, AND A DIRECT DISCHARGE TO THE RIVER WILL MEET THAT CRITERION. OUR PLAN WILL DISCHARGE DIRECTLY AT THE NORMAL POOL ELEVATION OF THE RIVER TO MINIMIZE EROSION IMPACTS AND STREAMBANK DISTURBANCE. STORMWATER QUANTITY COMPLIANCE (9VAC25-870-66 PART D SPECIFICALLY DEALS WITH SHEET FLOW): GRANDFATHERED: N/A NOTE REGARDING SHEET FLOW FOR THE REAR OF THE RESIDENTIAL LOTS: ALL SFD UNITS TO HAVE SPLASH BLOCKS AT ROOF DOWNSPOUTS TO ENSURE SHEET FLOW. ALL DOWNSPOUTS WILL BE DISCHARGE IN THE FRONT YARD TO NOT HAVE ANY CONCENTRATED FLOW LEAVING THE BACK YARD. THE YARD AREAS WILL BE GRADED/SEEDED/LANDSCAPED AS NECESSARY TO FULLY STABILIZE THE SITE TO PREVENT CONCENTRATED FLOW LEAVING THE REAR OF ANY RESIDENTIAL LOT WITHIN THE BELVEDERE PHASE 3 BLOCK 10 DEVELOPMENT. ALL SLOPES GREATER THAN 3:1 MUST BE STABILIZED WITH LOW MAINTENANCE VEGETATIVE GROUND COVER OTHER THAN GRASS AS SOON AS FEASIBLY POSSIBLE. DRAINAGE AREA COMPARISON DRAINAGF TO SOUTH FORK I'HUJtCI VICINITY DRAINAGE AREA MAKES UP 0.01 % OF THE SOUTH FORK RIVANNA RIVER DRAINAGE AREA 20000 0 20000 40000 60000 SCALE: 1" 20,000' CROSS-SECTION AT POINT OF ANALYSIS (N.T.S.) DISCHARGE PIPE FROM STORM SEWER PIPE NETWORK DISCHARGE ELEVATION = 321.05' � NPE = 321.05' RIVANNA RIVER CROSS-SECTION 43 7U a A M �� OZ z U) O 8) fjY j �c�/� Q 0) J o Er WJ ca = �4 00 ¢(0 m a.W �23 0 W o W OQ Ma ¢ Qy, QZ vu Z0 Ir o LL W Z �v...j� 0 i Ncp 7 aw N W N (D W Q Z J > O ^ <m� a C)aZw Z 0/ w O W m rn = rn U z 0 u u 0 w Q 0 O z z 0 �2 a w w 0 0 w o u u z z 0 0 O N N N N O r-I ZN yO}4sSyTB Op pj�a Jimmy L Taggart A 22841 sae 09/19/2022 d88/ONAL E$O g Q z 0- O 0 O r > ~ J zU _j °OT O m LU m C) Q a Fn O Q 0 � W w D_ r L) 06 U) C'7 z � z Q Q o E— W = CV O E W CL (0 F 0 w o_ ° ccy Z cr � cn a w� X o H �w Qa Q i w H �w 0 m O � a O O U DESIGNED BY: AGF DRAWN BY: AGF CHECKED BY: JLT DATE: 02-17-2021 SCALE: AS SHOWN JOB: 8438 SHEET: 26 OF26