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HomeMy WebLinkAboutWPO202000038 Plan - Submittal (First) WPO VSMP 2020-08-05GENERAL NOTES OWNER. 06100-00-00-134A0 ALBEMARLE BANK & TRUST % BB&T PROPERTY TAX COMPLIANCE PO BOX 167 WINSTON-SALEM, NC 27102 APPLICANT SOUTHEASTERN RETAIL DEVELOPMENT, LLC 2050 CIRCLE HWY.. 30A WEST BLDG. M-1 UNIT 231 SANTA ROSA BEACH, FL 32459 ENGINEER: COLLINS ENGINEERING 200 GARRETT ST. SUITE K, CHARLOTTESVILLE, VA 22902 TELEPHONE (434)293-3719 FAX (434)293-2813 CONTACT MR. SCOTT COLLINS, P.E. scot t0collins-engineering. com TAX MAP NO. 06100-00-00-134AO (D.B. 646/ PG. 508) AREA 0.93 AC ZONING PLANNED DEVELOPMENT SHOPPING CENTER (PD-SC) WITH OVERLAY DISTRICTS (ENTRANCE CORRIDOR (EC), AIRPORT IMPACT AREA (AIA), AND MANAGED SLOPES) ZMA (ZMA2019-00014) APPROVED BY THE BOS ON APRIL 15, 2020 SETBACKS FRONT BUILDING SETBACK. 10' MINIMUM & 30' MAXIMUM SETBACK FROM ROUTE 29 SIDE BUILDING SETBACK. • NONE REAR BUILDING SETBACK: NONE PARKING SETBACK.- 10' PARKING SETBACK FROM ROUTE 29 BUILDING HEIGHT MAXIMUM BUILDING HEIGHT: 65' PROPOSED BUILDING HEIGHT. • 27'-4" NOTE: ANY STRUCTURE EXCEEDING 35' IN HEIGHT SHALL BE SET BACK FROM ANY STREET R/W. IN ADDITION TO THE MINIMUM YARD REQUIREMENT A DISTANCE OF 2' FOR EACH 1' IN BUILDING HEIGHT. PROPOSED USE PROPOSED 3,000 SF COMMERCIAL RETAIL / FURNITURE BUILDING IN PHASE L PROPOSED SUBDIVISION. NEW PARCEL: 0.28 ACRES RESIDUE PARCEL (TMP61-134A): 0.61 ACRES R/W DEDICATION AREA: 0.04 ACRES TOPO & SURVEY SURVEY AND BOUNDARY INFORMATION PROVIDED BY ROUDABUSH, GALE & ASSOCIATES, INC. AND FIELD SURVEY DONE IN OCTOBER, 2019. DATUM SET BY SURVEYOR. DATUM NA 83 DATUM ADJACENT PROPERTY OWNERS: SEE EXISTING CONDITIONS, SHEET 2. EXIS77NG VEGETATION THE SITE IS FORESTED. CRITICAL SLOPES IN ACCORDANCE WIN THE ALBEMARLE COUNTY CRI77CAL SLOPES COUNTY MAPPING, MANAGED' CRITICAL SLOPES EXIST ON THE PARCEL. THE MANAGED SLOPES ARE SHOWN ON THE EXISTING CONDITI0NS SHEETS AND GRADING AND DRAINAGE PLAN SHEET WATERSHED THIS DEVELOPMENT LIES WITHIN THE MOORES CREEK WATERSHED. THE SITE IS NOT LOCATED WITHIN A PUBLIC WATER SUPPLY RESERVOIR WATERSHED, IT IS LOCATED DOWNSLOPE FROM THE SOUTH FORK RIVANNA WATER SUPPLY WATERSHED. FLOODPLAIN/WPO BUFFERS THERE ARE NO 100-YEAR FLOODPLAINS OR WPO BUFFERS LOCATED ON THIS SITE PER FEMA MAP PANEL #51003CO288D DATED FEBRUARY 4, 2005 & COUNTY GIS, RESPECTFULLY. ALSO NOTE THE PARCEL IS OUTSIDE THE LIMITS OF THE FEDERAL & STATE DAM BREAK INUNDAT70N ZONES PER COUNTY GIS DATA. SITE ACCESS THE SITE ACCESS FOR THE PARCEL IS PROVIDED VIA ROUTE 29 SEMINOLE TRAIL. A PARKING AND ACCESS EASEMENT WILL BE RECORDED ACROSS THE RESIDUE PARCEL TMP61-134A FOR THE BENEFIT OF THE NEW PARCEL CREATED WITH A SUBDIVISION PLAT. RETAINING WALLS: RETAINING WALLS ARE PROPOSED WITH THIS SITE PLAN, SEE GRADING SHEET 5. RETAINING WALLS SHALL NOT EXCEED 6 FEET IN HEIGHT. NOTE: RETAINING WALLS ABOVE 3 FT WILL REQUIRE A BUILDING PERMIT AND RETAINING WALLS ABOVE 4 FT WILL REQUIRE STAMPED ENGINEERING PLANS. LIGHTING: THE PROPOSED LIGHTING PLAN HAS BEEN INCLUDED, SEE SHEET 9. EACH OUTDOOR LUMINAIRE EQUIPPED WITH A LAMP THAT EMITS 3,000 OR MORE INITIAL LUMENS SHALL BE A FULL CUTOFF LUMINAIRE AND SHALL BE ARRANGED OR SHIELDED TO REFLECT LIGHT AWAY FROM ADJOINING PROPERTIES AND AWAY FROM ADJACENT ROADS. THE SPILLOVER OF LIGHTING FROM LUMINAIRES ONTO PUBLIC ROADS AND ADJACENT PROPERTIES SHALL NOT EXCEED ONE-HALF FOOTCANDLE. LANDSCAPING: A LANDSCAPING PLAN HAS BEEN INCLUDED IN ACCORDANCE WITH ALBEMARLE COUNTY ORDINANCE SECTION 32.7.9, SEE SHEET 8. STREET TREES HAVE BEEN PROVIDED WITH THE LANDSCAPING DESIGN ALONG THE FRONTAGE OF THE PROPERTY EVERY 40' O.C. TRASH COLLECTION: AN ENCLOSED DUMPSTER SCREENED WITH LANDSCAPING IS PROVIDED ON THE PLANS. DUMPSTER ENCLOSURE MATERIAL SHALL BE A WOODEN TRASH ENCLOSURE LOCATED BEHIND THE BUILDING. SEE SHEET 6 FOR DETAILS. UTILITIES PUBLIC WATER AND SANITARY SEWER UTILITIES WILL BE EXTENDED TO THE PROPERTY FOR CONNECTIONS TO THE PUBLIC UTILITIES. STORMWATER MANAGEMENT FACILITY: STORMWATER MANAGEMENT WILL BE ACHIEVED FOR THE SITE WITH AN UNDERGROUND DETENTION FACILITY AND A DETENTION BASIN FOR WATER QUANTITY CONTROL AND PURCHASE OF NUTRIENT CREDITS FOR THE WATER QUALITY. ES77MA7ED EMPLOYEES IT IS AN77CIPA7ED THAT APPROXIMATELY 2 EMPLOYEES WILL BE NEEDED AT THE LARGEST SHIFT PARKING LOT/TRAVELWAYS: CURB & GUTTER UTILITIES (WATER AND SEWER): COUNTY PUBLIC WATER AND SANITARY SEWER AGRICULTURAL/ FORESTAL DISTRICT: NONE IMPERVOUS AREAS: BUILDING - PHASE I = 3,000 SF, PAVEMENT -5,100 SF SIDEWALK -800 SF OPEN SPACE.• NONE UNDEVELOPED AREA: 20,800 SF - FUTURE PHASE H DEVELOPMENT AREA PARKING REQUIRED: 1 SPACE/400sf FOR RETAIL SALES AREA = 1 SP/400sf x 3,000sf = 8 SPACES 1 LOADING SPACE / 8,000 SF = 1 LOAD SPACE REQUIRED PROVDED: 10 PARKING SPACES (THIS INCLUDES 1 HANDICAP SPACE) & (1) LOADING SPACE BURIAL SITE. NO CEMETERIES WERE FOUND DURING FIELD INVESTIGATION OF THE SITE IMPERVIOUS AREAS. 8,900 SF (0.20 AC) TOTAL PAVED PARKING AND CIRCULATION AREA: 5,100 SF FIRE FLOW: AN EXISTING FIRE HYDRANT IS LOCATED ON THE ADJACENT PROPERTY, AS SHOWN AND LABELED ON SHEET 4. THIS FIRE HYDRANT WILL PROVIDE FIRE PROTECTION FOR THE PROPOSED BUILDING. SLEEP NUMBER - CHARLOTTESVILLE VSMP PLAN RIO MAGISTERIAL DISTRICT ALBEMARLE COUNTY, VIRGINIA SEMINOLE TRAIL — ROUTE 29 VAR. WIDTH PUBLIC RIGHT-OF-WAY HIGHWAY PLAT BOOK I PAGE 227) 950'+/- TO BRANCHLANDS BLVD C 0 0 0 TMP 61-129 N/F J.C. PENNEY PROPERTIES, INC ZONING - PUD USE SHOPPING 1DB 908 PG 726 NEW PARCEL DB 4355 PG 625 TIN TOTAL AREA: DEEDGO P TRUST) 0.28 ACRES jfI I u TMP 61-134 N/F CAVALIER COUNTRY BANK ZONING - COMMERCIAL OFFICE USE - BANK DB 527 PG 43 DB 327 PG 228 (PLAT) DB468 PG 456 (PLAT) C4q w TMP 61-134A Q N/F ALBEMARLE BANK maANDTRUSTCOMPANY o0.908 ACRES l ZONING - PDSC w RESIDUE PARCEL TMP 61-134A TOTAL AREA: III0.61 ACRES TMP 61-129 N/F J.C. PENNEY PROPERTIES, INC ZONING - PUD E - SHOPPING CENTER DS 1908 PG 726 DB 4355 PG 625 DESCRIPTION IN DEED OF TRUST) NOTES: CONTRACTOR SHALL VERIFY LOCATION AND ELEVATION OF ALL UNDERGROUND UTILITIES SHOWN ON PLANS IN AREAS OF CONSTRUCTION PRIOR TO STARTING WORK. CONTACT ENGINEER IMMEDIATELY IF LOCATION OR ELEVATION IS DIFFERENT FROM THAT SHOWN ON THE PLANS, IF THERE APPEARS TO BE A CONFLICT, AND UPON DISCOVERY OF ANY UTILITY NOT SHOWN ON THE PLANS. THE CONTRACTOR MUST LOCATE ALL SURFACE AND SUB -SURFACE UTILITIES PRIOR TO ANY WORK ONSITE. ANY SIDEWALK AND/OR CURB DAMAGE IDENTIFIED IN THE SITE VICINITY DUE TO PROJECT CONSTRUCTION ACTIVITIES AS DETERMINED BY THE VDOT INSPECTOR SHALL BE REPAIRED AT THE CONTRACTOR'S EXPENSE. SIDEWALK WILL BE REPLACED AT THE DIRECTION OF THE VDOT INSPECTOR. ANY EXISTING SIDEWALK THAT IS CURRENTLY DAMAGED AND IN NEED OF REPAIR OR NOT IN COMPLIANCE WITH CURRENT STANDARDS SHOULD BE REPLACED AS PART OF THIS PROJECT AS WELL. IN ADDITION, ANY EXISTING CC-12S ALONG THE PERIMETER OF THE SITE SHOULD BE UPGRADED TO MEET CURRENT STANDARD IF NEEDED. ALL SIGNING AND PAVEMENT MARKINGS SHALL BE CONSISTENT WITH THE MUTCD. ALL WATER LINES, SEWER LINES, AND FIRE LINES FROM THE MAIN TO THE STRUCTURE MUST HAVE A VISUAL INSPECTION PERFORMED BY THE BUILDING DEPARTMENT. SHEET LAYOUT SCALE: 1" = 30' TRAFFIC GENERATION CALCULATIONS: TRIP GENERATION BASED ON ITE TRIP GENERATION MANUAL 10TH EDITION PROPOSED 3,000 SF RETAIL STORE (FURNITURE STORE) (CODE 890) ADT: 19 VPD (10 ENTER/9 EXIT) AM PEAK: 1 VEHICLES PER HOUR PM PEAK: 2 VEHICLES PER HOUR ENTRANCE CORRIDOR NOTES AND REQUIREMENTS: 1. VISIBILITY OF ALL MECHANICAL EQUIPMENT FROM THE ENTRANCE CORRIDOR SHALL BE ELIMINATED. 2. ALL SIGNS FOR THE SITE SHALL BE REVIEWED AND APPROVED BY ARB UNDER A SEPARATE SIGN APPLICATION. BUILDING NOTES: 1. PROPOSED BUILDING HEIGHT (PHASE 1): MINIMUM HT.=20' 2. PHASE I BUILDING FOUNDATION TO BE CONSTRUCTED TO SUPPORT MULTIPLE STORIES. 01 PROJECT SITE VICINITY MAP SCALE: 1" = Low Sheet List Table - SITE PLAN Sheet Number Sheet Title 1 COVER 2 EXISTING CONDITIONS & DEMOLITION PLAN 3 EROSION & SEDIMENT CONTROL PLAN NARRATIVE & DETAILS 4 PHASE I EROSION & SEDIMENT CONTROL PLAN 5 PHASE II EROSION & SEDIMENT CONTROL PLAN 6 PHASE III EROSION & SEDIMENT CONTROL PLAN 7 STORMWATER MANAGEMENT PLAN 8 STORMWATER MANAGEMENT DETAILS R LEGEND ROADS TOTAL NUMBER OF SHEETS EXISTING CULVERT CUL VERT u Q DROP INLET & STRUCTURE NO. CURB CURB & GUTTER PROPOSED PAVEMENT EC-3A DITCH DEPTH OF EC-3A DITCH EC-2 DITCH 6" DEPTH OF EC-2 DITCH EARTH DITCH DRIVEWAY CULVERT BENCH MARK CLEARING LIMITS T VDOT STANDARD STOP SIGN 200- - - - EXISTING CONTOUR 200 PROPOSED CONTOUR 240.55 PROPOSED SPOT ELEVATION TBC DENOTES TOP/BACK OF CURB TAB DENOTES TOP OF BOX APPROVALS DATE DEPARTMENT OF COMMUNITY DEVELOPMENT PLANNER/ZONING ENGINEER INSPECTIONS ARB DEPARTMENT OF FIRE RESCUE ALBEMARLE COUNTY SERVICE AUTHORITY VIRGINIA DEPARMENT OF TRANSPORTATION HEALTH DEPARTMENT SCOTT/R. CULLINSZ Lic. No. 035791,a A 7/17/20 _j 0N n n A zCIN M J N M G W W w N J zw a LU L 0 0C J Lu z> Q Q 0 w U U LUUl F-' GZW z JF-' w w J^ O V / O N U LU 0 _ a cn IMIX: SCALE AS SHOWN SHEET NO. 1 13 ST T Frl DF SE/ 41NOLE TRAIL e ROUTE 29 U oscoTT R. LL1Nsz J Lic. No. 035791 sTRM MH / // / / VAR. WIDTH PUB' -IC RIGHT OL-WAY I I / 7/v/2o w TOP=464.63 0 / / / / (HIGHWAY PLAT/BOOK PAGE 227) / ° ss INV IN (24")=458.43 / STRM MH / I \ / ` ( STRM MHI / ZONAL S INV IN (18")=458.33 / TOP=466.85 13.34 L.F. 18J' RCP @ ^ \ R TOP=476 76 NV OUT=458.23 8.77/dv ` PORTION OF EXISTING EX 1 (ST M DI) \ O J INV IN=4I70.21 I / s INV IN (18"x2)=460.75 I `X` STRM MH SIDEWALK TO BE \ TOP=471.9 /_ o / INV IN (24")-460.70 ' I TOP=469.64 REMOVED \ INV IN=466.34 INV OUT 470.26 NV OUT=460.65 STRM DI `INV IN-464.09 +- T0- INV OUT=466.0q \ ' d TOP-466 42 \ IN\kOUT=464.09 BRANCHLANDS BLVD \ \ W W s INV OUT=461. 2 ^ \ W W A 0 164.32 L.F."RCP @ 2.39s sr F @F I r / o 24 L s T T >•- _ 4 • . , e • s .. e , . e S( 2 v y/, i; i. i $ T 4' RCP 40 .4 J Z .04 L. S ST ST ST , .. -_ •' .-' ' .lam ST `.. T to J r 3 24 RCP 2.47 / sr 118.05 L.F. 24" RfP-@ 2.87% IRS - 2.2 TF. 18" RCP @ / _ o• / kN3500'00" E 125.56' = -- o 9.21% / - - - IF ©/ ,/ i %/_ _ Ga l ® / STf M DI / W / o / - \ / (- \\ I 7 17 L.F. 24" RCP TOP-478.75 m o 4.i4 - I - (\ A \\ P. N IN U zEXISTINGSIDEWALKTO \ \\\ ® @ 2.58% T=472.10 Z w EX. VDOT R/W \ \ \ \ L \ i o a BE REMOVED v V A / T W/61 -1 29 / 0 2 STRM DI / - / CISTING WATERLINE / / TW-74.5 a V \ A VA i % > LO=46613_ STRM GRATA EP-70. % \1 //F J.C. PENNEY / / ," A W a INV OUT=460.38 TOP=46'86 / / / INS O-T=463.59 - 1 \ PROPERTIES,_44C vl r ZONING PUD EXISTING FIRE HYDRW / - - - / / USES SHOPPING CENTER / / EP 71.2 - v DB 1908 PG 726 W18,58 L.F. 18" / / / BLOCK / ec @ 15.29%/ / " / WALL / DB 4 55 PG 625 T7 o q \ (a-ESCRIPTION IN EXISTING CURB AND / , / / - - -- / " - /DEED OF TRUST) / GUTTER TO BE REMOVED EXISTING% BLOCK WA4----- / / EX. P/L \ II 1 / EP-71.7 TO BE REMOV / o v / \ V 7 o TW- / _--/ / - ^ i / / rl 5 N - - ^/ w-7 ---- - - - 4 _--- I--------- TMP 61-134 -- --- - o SYMBOL LEGEND N/F CAVALIER COUNTRY BANK MANA_G_EDSL_OPES \ IRS IRON ROD SET / / ZONING - COMMERCIAL OFFICE (/1 / SIGN - - - W // // / \ \ I ON, Z Ey / / USE - BANK J - --- --- - > UTILI POLE 49r- - GUY POLE / DB 527 PG 43 - GUY WIRE / \ DB 327 PG 228 (PLAT) / \ RCP STORM MH / ELECTRIC VAULT / DB 468 PG 456 (PLAT), w_ / REINFORCECONCRETE PIPE cc&c / CO ICRM CURB & GUTTER \ \ I D Q \ M FENCE _ BANKOVERHEADELECTRICUTILITY/ / - - - - r _ WATERLINE / / / / / llllllll l N D TR$- MA-R1,E USTCOMPANY a 0.908 ASS -\ MANACED,sLOPEs O W Ze G_PDSC - - - - - -- O 496 - N zi--I NOTES: ------------------- J 1 . THIS PLAT HAS BEEN PREPARED WITH THE BENEFIT OF A TITLE REPORT BY / / ----- I ' ^ AN - / -- ///// - - _ / V' MANAGED SLOPES ' STEWART TITLE GUARANTY COMPANY, COMMITMENT NUMBER 19000090147, / / - - I EFFECTIVE DATE AUGUST 19, 2019 8:00 A.M. - i52. ALL DEED AND PLAT REFERENCES SHOWN ARE RECORDED IN THE ALBEMARLE _' COUNTY COURTHOUSE. ! --- _ / 0 3. FOR ALL PARCELS SHOWN HEREON, THIS PLAT HAS BEEN PREPARED FROM AN = ___ - - _ _ %' 016ACTUALFIELDSURVEYDONEASFORALLPARCELSSHOWNHEREON, THIS PLAT ' \ \ - - - WT / / /L9ASPERTHEDATE OFTHISPLATEPARED FROM AN USING MONUMENTS CFOUND TUALFIELD EXIST AT THE ETIME OF THIS SURVEY, IRON ROD V / / THERE ARE NO VISIBLE EASEMENTS OR ENCROACHMENTS EXCEPT AS SHOWN, - / J _ _ ' - z 7 I FOUND V A \ \ --- / /// 1 SUBJECT TO NOTE 1. - - % V - / \ \ / O 4. THE TOPOGRAPHY BY RGA SHOWN IS BASED ON A FIELD SURVEY COMPLETED BY - - 1 (HELD) \ / o Q a 1--I OCTOBER 17, 2019. x 5. THE AREA SHOWN HEREON APPEARS TO BE LOCATED WITHIN FLOOD ZONE X C) UNSHADED), WHICH IS AN AREA OF MINIMAL FLOOD HAZARD AS SHOWN ON FEMA o W U COMMUNITY l THUSDETERMINATIONPNASNENOMADEEOOB3Y0RR8DGRAPHICTHODSNLY.AAN ELEVATION / / / / \ A - V i o • 1 Q STUDY S 0 BEEN S 0 0 0 S PROJECT./ / I I \ / SUn / W U 6. SUBJECT PROPERTY IS ZONED PD-SC (PLANNED DEVELOPMENT SHOPPING / \ S \ / CENTER). PER ALBEMARLE COUNTY GIS, SUBJECT PROPERTY LIES WITHIN THE / \ 6 FOLLOWING OVERLAY DISTRICTS: AIRPORT IMPACT, ENTRANCE CORRIDOR, AND / I / I I \ \ TVP 61 129 \ 38 \ ^ \ \\ / / ul yw1 Z MANAGED STEEP SLOPES I \ \ \ 2S[', III7. THE PARCEL SHOWN WILL BE SERVICED BY PUBLIC WATER AND SEWER. \ \ ",N/ F J.G., PENNEY W 8. THERE ARE NO KNOWN IDENTIFICATIONS OF GRAVES, OBJECTS, OR STRUCTURES \ \ \ I \ r-ROPERTI'ES, INC \ \ \ \ / / // W (n MARKING A PLACE OF HUMAN BURIAL ON THE SUBJECT PROPERTY. \ 1 \ Z0 0 SIG - PUD _ 79 . \ o / / (x 7 x 9. THE MINIMUM BUILDING SETBACKS ARE PER ALBEMARLE COUNTY CODE. \\ \ \ \ \1 \ \ US%- S O\PPING CENTER - - \ \ ,8, \ \ \ \ - - / / / / /// z W 10. THE SUBJECT PARCEL HAS LEGAL ACCESS TO U.S. ROUTE 29 (SEMINOLE TRAIL). Utz 1908 G 726 / / 1 1 . PLAT OF RECORD FOR SUBJECT PARCEL SHOWS THE NORTHWEST AND SOUTHEAST \ \ \ I \ \ > / DB 55 PG\625 \ \I SIDELINESBEING214.5' AND 307.5' RESPECTIVELY. FIELD FOUND EVIDENCE OF 1 I / DES IPTION TN / ADJOINING PARCELS APPEAR TO REFLECT A 5' RIGHT-OF-WAY TAKE ALONG - / / \ ( OF \ \ // /j/ / / w SEMINOLETRAIL - U.S. ROUTE 29 BUT A RIGHT-OF-WAY TAKE WAS NOT FOUND / \ DEED 0 \TRUST) / / / IN THE TITLE REPORT OR IN A SEARCH OF COUNTY RECORDS. FOR THE PURPOSE OF THIS SURVEY, PARCEL AREAS AND LEGAL DESCRIPTION INCLUDES THE 5' STRIP /1 AS A PORTION OF THE SUBJECT PROPERTY. V \ / LEGEND: METES AND BOUNDS DESCRIPTION: \ \ l \ \ / TMETAL A ROW MF IF IRON PIN FOUND IRON MF MONUMENT FOUND BEGINNING AT A POINT (MARKED P.O.B.), SAID POINT BEING SITUATED IN THE \ \ \ / / WITH FENCE CP CONCRETE PAD EASTERN RIGHT-OF-WAY OF U.S. ROUTE 29, SEMINOLE TRAIL. THENCE, ALONG THE \ \ \ \ \ / P T CW CONCRETE WALK EASTERN RIGHT-OF-WAY OF SEMINOLE TRAIL N 35°00'00" E FOR A DISTANCE OF ^ \ \ \ \ \ \ / / (0.77' ST OF DI STORM SEWER DROP INLET 125.56 FEET TO POINT. THENCE LEAVING SAID SEMINOLE TRAILS 55°11'57" E FOR \ \ \ _ CO ER) \ // W ~ GUYGUYWIREANDANCHORADISTANCEOF307.50 FEET, PASSING AN IRON PIN FOUND (IF) AT 5.45 FEET, A \ \ \ \ \ - - - STRM DI / / _ _ _ W LP LAMP POST CORNER OF TMP 61-129, N/F J.C. PENNEY PROPERTIES, INC. AND CONTINUING / \ \ \ 1 \ TOP=505.57 \ \ / /j/ / a m MH MANHOLE WITH SAID J.C. PENNEY PROPERTIES, INC. TO A METAL ARROW FOUND ON \ \ \ INV=500.98 OH OVERHEAD UTILITIES MONUMENT (MF). THENCE CONTINUING WITH SAID J.C. PENNEY PROPERTIES, INC. S roe No. \ 1 \ \ / // / / SSL NSIGNAL POLE & BASE 64°38'24" W FOR A DISTANCE OF 197.84 FEET TO AN IRON PIN FOUND (IF) SAID \ \ \ HORIZONTAL GRAPHIC SCALE \ 1 /// / / / 192036 IRON PIN BEING A COMMON CORNER OF SAID J.C. PENNEY PROPERTIES, INC. AND \ \ \ 25.4 15" RCP 15" RCP SS SANITARY SEWER \ / / WITH TMP 61 -134, N/F CAVALIER COUNTRY BANK. THENCE LEAVING SAID J.C. \ \ \ zo o io zo ao o @ 7 % \ / / SCALE ST STORMWATER PENNEY PROPERTIES, INC. AND CONTINUING WITH SAID CAVALIER COUNTRY BANK N \ \ \ UP UTILITY POLE \ / / / / 1"=20' 42' 48'10" W FOR A DISTANCE OF 214.50 FEET, PASSING A COMMON CORNER WITH \ \ \ / VLTUTILITYVAULT \ \ \ I / WL MARK WATERLINE SAID CAVALIER COUNTRY BANK AT 209.56', AND LEAVING SAID CAVALIER COUNTRY \ \ \ \ \ (ix FEET) STRM H - BANK TO THE POINT AND PLACE OF BEGINNING, HAVING A TOTAL AREA OF 0.908 \ \ 1 i chi20 ft. TOP=504. STRM ICI SHEET NO. YH YARD HYDRANT \ \ \ OP - ACRES60 / ACRESOR39,547 SQUARE FEET, MORE OR LESS. \ \ \ \ INV IN=49 1 INV= 5 0.90 2 EROSION & SEDIMENT CONTROL EROSION CONTROL NOTES DESCRIPTION OF EROSION & SEDIMENT EROSION CONTROL NOTES & NARRATIVE MEASURES: 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE CONTROL MEASURES: PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND PROJECT DESCRIPTION: STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. THE PURPOSE OF THIS LAND DISTURBANCE ACT70TY IS FOR THE CONSTRUCTION OF A PARKING LOT AND A 3,000 ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND EROSION AND SEDIMENT CONTROL MEASURES: SF RETAIL BUILDING. THIS PROJECT PROPOSES TO DISTURB 1. 14 oc. OF LAND. THE PROJECT WILL BEGIN ITS STRUCTURAL PRACTICES USED IN THIS SECTION CONSIST OF THE FOLLOWING MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA IT IS ANTICIPATED TO USE A CONSTRUCTION ENTRANCE, RIPRAP, OUTLET PROTECTION, CONSTRUCTION WITH THE PROPOSED ESC MEASURES IMMEDIATELY FOLLOWING PLAN APPROVAL, WHICH IS 301 SAFETY FENCE EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR DIVERSIONS SEDIMENT TRAPS AND SILT FENCES TO CONTROL SURFACE DRAINAGE ANTICIPATED TO BE IN THE FALL OF 2020. THE WORK IS ANTICIPATED TO BE COMPLETED WITHIN 12 MONTHS AND A PR07EC77VE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. ARONEROSIONANDSEDIMENTCONTROLREGULATIONS TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE TO CONCLUDE /N THE FALL OF 2021. TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO ORALLEROSION AS THE FIRST STEP IN CLEARING. ACTIVITIES. TEMPORARY STOCKPILE AREAS ARE NOT BE REQUIRED WITH THIS PROPOSED EXISTING SITE CONDITIONS. APPLICABLE U ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY VIRTUE OF POTENTIAL ACCESS BY THE PUBLIC 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE DESIGN. SHOULD FIELD ADJUSTMENTS NECESSITATE A SMALL STOCKPILE AREA, IT SHALL THE AREA OF THE PROPOSED DEVELOPMENT IS VACANT LOT MOSTLY COVERED BY DENSE VEGETATION. THE SITE MAINTAINED ON THE SITE AT ALL TIMES. BE DISCUSSED WITH THE ESC INSPECTOR AHEAD OF TIME. THE STOCKPILE WILL NEED TO GENERALLY SLOPES FROM THE SOUTHEAST TO THE NORTHWEST TOWARDS SEMINOLE TRAIL ROUTE 29. J02 CONSTRUCTION ENTRANCE., 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN BE MAINTAINED AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL BE ON ADJACENT AREAS.• A STABILIZED CONSTRUCTION ENTRANCE LOCATED AT POINTS OF VEHICULAR INGRESS AND INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR S17E AND SHALL BE STABILIZED K17H A TEMPORARY VEGETATIVE COVER. PERMANENT THIS SITE IS BORDERED TO THE NORTH AND WEST BY THE FASHION SQUARE MALL ENTRANCE AND PARKING LOT. EGRESS ON A CONSTRUCTION SITE TO REDUCE THE AMOUNT OF MUD TRANSPOR7ED ONTO WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE EXCAVATED TO THE SOUTH IS THE BRANCH, BANKING & TRUST BUILDING AND TO THE EAST IS SEMINOLE TRAIL ROUTE 29PAVEDPUBLICROADSBYMOTORVEHICLESORRUNOFF. CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE 7HE AMOUNT SEDIMENT 7RANSPOR7ED CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AND WHERE CONSTRUCTION ACTIVITIES HAVE CEASED. PERMANENT SEEDING SHALL ALSO NORTHBOUND LANES. SILT FENCE, DIVERSIONS, SEDIMENT TRAPS, INLET CONTROLS AND VARIOUS OTHER ESC ONTO PUBLIC ROADWAYS. 6. AUTHORITY. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MEASURES ARE PROPOSED TO LIMIT THE POTENTIAL FOR CONTAMINATION OF THESE ADJACENT PROPERTIES. CONSTRUCTION ROAD STABILIZATION: CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTAT70N AS MORE. SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. OFFS17F LAND DISTURBANCE, THETHE TEMPORARY STABILIZATIONN OOFFACCESS ROADS SUBDIVISION ROADS PARKING AREAS DETERMINED BY 774E PLAN APPROVING AUTHORITY. TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT OFFSITE LAND DISTURBANCE IS LIMITED TO PUBLIC RIGHT-OF-WAY. AND 07HER S17E VEHICLE 7RANSPORTA77ON ROUTES W7774 STONE IMMEDIATELY AFTER 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES DORMANT FOR MORE THAN SEVEN DAYS THESE AREAS SHALL BE SEEDED WITH FAST SOILS: GRADING. TO REDUCE EROSION OF TEMPORARY ROADBEDS BY CONSTRUCTION TRAFFIC AT ALL 77MES DURING LAND DISTURBING ACTIVITIES AND DURING S17F DEVELOPMENT GERMINATING VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECTION SEE SOIL DESCRIPTIONS ON THIS PAGE AND THE PHASE l EROSION & SEDIMENT CONTROL PLAN FOR SOIL DURING WET WEA T7HER AND TO REDUCE EROSION AND SUBSEQUENT REGARDING OF UNTIL FINAL STABILIZATION IS ACHIEVED. OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. BOUNDARIES. PERMANENTROADBEDSBETWEENTHE77M£ OF W77AL GRADING AND FINAL STABILIZATION 8. DURING D£WATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED USE WHEREVER STONE -BASE ROADS OR PARKING AREAS ARE CONSTRUCTED, WHE77-IER FILTERING DEVICE. CRITICAL AREAS.• PERMANENT OR TEMPORARY, FOR USE BY CONS77?UC77ON TRAFFIC. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY 3.01 SAFETY FENCE- TO DISCOURAGE ACCESS TO A PARTICULAR AREA. THE MANAGED STEEP SLOPES AT THE SOUTHERN PORTION OF THE SITE ARE CONSIDERED TO BE CRITICAL. THE SILT AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR 3.02 CONSTRUCTION ENTRANCE - TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO CONTRACTOR SHALL GIVE EXTRA ATTENTION AND CAUTION IN AND AROUND THESE AREAS TO ENSURE 3. 05 FENCE., A TEMPORARY SEDIMENT BARRIER CONSIS77NG OF A SYN7HETIC FILTER FABRIC S7RETCHED CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONSTRUCTION ACTIVITY DOES NOT DISTURB THESE EXISTING FEATURES. TREE PROTECT70N FENCING, SILT FENCING, ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED, TO INTERCEPT AND BE MADE IMMEDIATELY. 3. 03 CONSTRUCTION ROAD STABILIZATION TO REDUCE THE EROSION OF TEMPORARY DIVERSIONS AND SEDIMENT TRAPPING DEVICES SHALL ALSO BE INSTALLED AS A FIRST STEP IN LAND DISTURBANCE DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED DESIGNATED BORROW AREA. ROADBEDS BY CONSTRUCTION TRAFFIC AND TO REDUCE THE EROSION AND SUBSEQUENT TO ENSURE THESE CRITICAL AREAS ARE MAINTAINED. TOOPERATIONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE, AND TO DECREASE 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL THE VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. 7HE SILT SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND REGARDING OF PERMANENT ROADBEDS BETWEEN 7HE TIME OF 1N177AL GRADING AND FINAL SEQUENCE OF CONS7RUC710N: FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE OF AREAS W77H MINIMAL GRADES TO 0774ER DEBRIS. STABILIZATION. CONSTRUCTION ROAD STABILIZATION WILL BE APPLIED TO THE 1. CONTRACTOR SHALL NOTIFY THE ALBEMARLE COUNTY COMMUNITY DEVELOPMENT ENGINEERING DEPARTMENT TO FIL 7ER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED. THEY SHALL BE 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION CONTRACTOR PARKING & STAGING AREAS AS NEEDED. SCHEDULE A PRE -CONSTRUCTION MEETING. INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WI7H THE PER ZONING ORDINANCE SECTION 5.1.28. 2. PRIOR TO DISTURBANCES, THE LIMITS OF DISTURBANCE SHALL BE FLAGGED AND THE TREE PROTECTION VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 3.05 SILT FENCE- SILT FENCE IS PROPOSED, WHERE SHOWN ON 774E PLANS. FENCING SHALL BE INSTALLED. 3. 07 STORM DRAIN INLET PROTECTION OF THE CODE OF ALBEMARLE. 3.07 STORM DRAIN INLET PROTECTION- INLET PROTECTION IS PROPOSED ON INLETS J. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT 774E A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM GRAIN DROP 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT WHERE SHOWN ON THE PLANS. APPROVAL FROM THE INSPECTOR ON THE PROJECT INLET OR CURB INLET. TO PREVENT SEDIMENT FROM EN7ERING STORM DRAINAGE SYSTEMS SHALL BE LIMITED TO 7HE HOURS OF 7.•00 AM TO 9:00 PM. 3.09 DIVERSION- PERIMETER DIVERSIONS ARE PROPOSED WHERE SHOWN ON 7HE PLANS 4. INSTALLATION OF THE PROPOSED CONSTRUCTION ENTRANCE SHALL OCCUR NEXT. THE CONTRACTOR SHALL PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA. INLET PROTECT70N APPLIES 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, TO DIRECT RUNOFF INTO A SEDIMENT TRAPPING DEVICE. APPLY CONSTRUCT70N ROAD STABILIZATION AS NEEDED. CONTRACTOR SHALL ENSURE THE CONSTRUCTION WHERESTORMDRAININLETSARETOBEMADEOPERATIONALBEFOREPERMANENTSTABILIZATION OF THE CORRESPONDING DISTURBED DRAINAGE AREA. PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS AND DAMAGE TO ANY 3.131 SEDIMENT TRAP- SEDIMENT TRAPS ARE PROPOSED WHERE SHOWN ON THE PLANS. ENTRANCE DRAINS TO AN ADEQUATE E&S MEASURE. THE CONTRACTOR SHALL UTILIZE THE NEARBY SEDIMENT PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE. J.18 OUTLET PR07EC77ON-OUTLET PROTECTION IS PROPOSED AT THE OUTLET OF PIPES. TRAP FOR VEHICULAR WASH OFF. CONSTRUCT70N ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE J. 09 TEMPORARY DIVERSION DIKE., 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR 3.19 RIPRAP- RIPRAP IS PROPOSED AROUND THE EXISTING DL ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT 774E TOP OR BASE OF A CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE 3.32 PERMANENT SEEDING -PERMANENT SEEDING IS REQUIRED AND PROPOSED W77H THIS SEDIMENT BY (VEHICULAR) TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A SLOPINGDISTURBEDAREA. TO DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS ALL EROSION CONTROL MEASURES REQUIRED BY 7741S PLAN REGARDLESS OF THE PLAN. AWAYFROMUNPROTECTEDDISTURBEDAREASANDSLOPESTOASTABILIZEDOUTLET. TO SALE of ANY Lor, UNIT, BUILDING OR OTHER PORTION of 774E PROPERTY PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING 17 TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING 3.38 TREE PRESERVATION AND PROTECTION- TREE PROTECTION IS PROPOSED KITH THIS SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTING TO A SEDIMENT FACILITY SUCH A SEDIMENT TRAP OR SEDIMENT BASIN. USE WHEREVER STORMWAER IS TO BE AT 75 LBS ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO PLAN. SEE THE ESC PLAN FOR THE REQUIRED LOCATIONS. CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS RUNOFFMUSTBEETEMPORARILYDIVERTEDTOPROTECTDISTURBEDAREASANDSLOPESSORRETAINSEDIMENT ON SITE DURING CONSTRUCTION THESE STRUCTURES GENERALLY HAVE A CONSIST A 50/50 MIX OF ANNUAL RYGRASS AND CEREAL WINTER RYE, OR IN MARCH 3.39 DUST CONTROL -DUST CONTROL IS REQUIRED AND PROPOSED WITH THIS PLAN. MANNER. LIFE EXPECTANCY OF 18 MONTHS OR LESS, WHICH CAN BE PROLONGED WITH PROPER AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF 5. THE INITIAL ESC CONSTRUCTION MEASURES, AS SHOWN ON THE PHASE I EROSION & SEDIMENT CONTROL PLAN, MAINTENANCE. GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS1100SF. ALTERNA7VES MAINTENANCE.' SHALL BE INSTALLED NEXT. THE CONTRACTOR SHALL BEGIN BY INSTALLING THE PERIMETER SILT FENCE AND 3. 11 TEMPORARY RIGHTDIVERSION: ARE SUBJECT TO APPROVAL BY 774E EROSION CONTROL INSPECTOR. IN GENERAL, DURING CONS7RUCTION THE RLD OR CONTRACTOR ON -SITE WILL CHECK ALL TREE PROTECTION. PERIMETER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST OI A RIDGE OFCOMPACTEDDSOILLORLOOSEROCK OR GRAVEL CONSTRUCTED ACROSS 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS/1000SF, EROSION AND SEDIMENT CONTROL MEASURES DAILY AND AFTER EACH SIGNIFICANT STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBED RIGHTS -OF - WAY AND SIMILAR SLOPING AREAS. TO SHORTEN THE FLOW LENG7H RAINFALL. MONITORING REPORTS WILL BE REQUIRED FROM THE RLD IF NEEDED. SPECIFIC DISTURBANCE TAKES PLACE. WITHIN A SLOPING RIGHT-OF-WAY, THEREBY REDUCING 7HE EROSION POTENTIAL BY INCORPORATED INTO 7HE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING ATTENT70N WILL BE GIVEN TO THE FOLLOWING ITEMS: 6. ONCE THE PERIMETER EROSION CONTROL MEASURES HAVE BEEN INSTALLED, AND THE COUNTY INSPECTOR HAS DIVERTING STORM RUNOFFTOASTABILIZEDOUTLETGENERALLY, EARTHEN DIVERSIONS ARE a. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE APPLICABLE WHERE THERE WILL BE LITTLE OR NO CONSTRUCTION 7RAFF7C WITHIN THE SHALL BE APPLIED AT 180LBS/ACRE AND CONSIST OF 959' KENTUCKY 31 OR TALL W1774 THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. APPROVED THESE MEASURES, THE CONTRACTOR SHALL BEGIN LIGHT CLEARING. THE CONTRACTOR SHALL BEGIN RIGHT-OF-WAY. GRAVEL STRUCTURES ARE MORE APPLICABLE TO ROADS AND OTHER FESCUE AND 0-57 PERENNIAL RYGRASS OR KEN77JCKY BLUEGRASS. STRAW MULCH IS b.ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT WILL BY CLEARING THE AREAS REQUIRED TO ACCESS THE LOCATION OF THE SEDIMENT TRAP. FOLLOWING THE RIGHTS -OF -WAY WHICH ACCOMMODATE VEHICULAR TRAFFIC. TO BE APPLIED AT 80LBS 100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE PREVENT PROPER DRAINAGE IF THE GRAVEL IS CLOGGED BY SEDIMENT THE GRAVEL INSTALLATION OF THESE MEASURES THE CONTRACTOR SHALL INSTALL THE DIVERSIONS ANY REMAINING J..13 TEMPORARY SEDIMENT TRAP: EROSION CONTROL INSPECTOR. WILL BE REMOVED AND CLEANED, OR IT WILL BE REPLACED. EROSION CONTROL ITEMS AS SHOWN ON THE PHASE I EROSION CONTROL PLAN SHALL ALSO BE CONSTRUCTED A TEMPORARY PONDING AREA FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT W77H A 19. MAINTENANCE. ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH c. ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR AT THIS TIME. STONE OUTLET. TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS LONG RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIRED DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE 7 ONCE ALL THE PHASE I EROSION CONTROL ITEMS HAVE BEEN INSTALLED & ARE OPERATIONAL, DRAINAGE IS ENOUGH TO ALLOW 7HE MAJORITY OF THE SEDIMENT TO SETTLE OUT. USE BELOW IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 507 OF THE WET STORAGE REMOVED WHEN 774E LEVEL OF SEDIMENT DEPOS177ON REACHED HALF WAY TO THE TOP PROPERLY CONVEYED TO THESE MEASURES, AND THE ESC INSPECTOR HAS GRANTED APPROVAL, THE DISTURBED AREAS WHERE7HETOTALCONTRIBUTINGDRAINAGEAREAISLESSTHAN3ACRES, VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN OF THE BARRIER. WHERE 7HE SEDIMENT TRAP WILL BE USED NO LONGER THAN 18 MONTHS, AND IT MAY BE NECESSARY TO ACHIEVE A GOOD STAND OF GRASS SILT FENCE AND DIVERSION d.ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS CONTRACTOR CAN BEGIN CLEARING THE REMAINDER OF THE SITE TEMPORARY SEEDING PERMANENT SEEDING CONSTRUCTED E17HER INDEPENDENTLY OR IN CONJUNCTION WITH A TEMPORARY DIVERSION DYKES WHICH ARE COLLEC77NG SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED MAINTAINED. AREAS SHOULD BE FER77LIZED AND RESEEDED AS NEEDED. AND DUST CONTROL SHALL BE IMPLEMENTED AS REQUIRED. DIKE. AND REPAIRED IMMEDIATELY. IN CASE OF EMERGENCY, 7HE PRIMARY CONTACT FOR THE PROJECT WILL BE THE RLD OR B. AFTER CLEARING THE PROPOSED AREAS, THE CONTRACTOR CAN PROCEED TO PHASE Il OF THE EROSION & 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED CONTRACTOR ON -SITE. IN ADDITION 7HE OWNER MAY BE CONTACTED. UPON COMPLETION SEDIMENT CONTROL PLAN. THE CONTRACTOR SHALL BEGIN ROUGH GRADING THE SITE TO THE CONTOURS S.18 OUTLETPROTECTION: STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPATING DEVICES PLACED WITHIN 3o DAYS of FINAL SITE STABILIZATION, WHEN MEASURES ARE No LONGER OF THE PROJECT, THE OWNER WILL BE RESPONSIBLE FOR SITE MAINTENANCE. SHOWN ON THE PHASE lI EROSION &SEDIMENT CONTROL PLAN. MEASURES INTENDED TO TRAP SEDIMENT AT THE OUTLETS OF PIPES PAVED CHANNEL SECTIONS TO PREVENT SCOUR AT NEEDED, SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR. SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACT70TY AND SHALL BE MADE STORMWA OUTLETS, TO PROTECT THE OUTLET STRUCTURE, AND MINIMIZE THE 21. THE EINSPECTOR HAS THE AUTHORITY To ADD OR DELETE E&S CONTROLS FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. F A POTENTIAL FOR DOWNSTREAM EROSIONBYREDUCINGTHEVELOCITYANDENERGYOFNECESSARYRY IN 774E FIELDAS SITE CONDITIONS CHANGE. IN ADDITION, NO SEDIMENT 9. THE CONTRACTOR SHALL INSTALL ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THE PHASE II CONCEN7RATED STORMWA7ER FLOWS APPLICABLETO7HEOUTLETSOFALLPIPESANDBASINORTRAPCANBEREMOVEDWITHOUTKRiTTENAUTHORIZATION. ENGINEERED CHANNEL SECTIONS EROSION CONTROL PLAN. TEMPORARY SEEDING, PERMANENT SEEDING AND DUST CONTROL SHALL BE IMPLEMENTED AS REQUIRED. 319 RIPRAP: A PERMANENT, EROSION GROUND COVER OF LARGE, LOOSE ANGULAR STONE WITH SOIL DESCRIPTION 10. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS RESISTANT FILTER FABRIC OR GRANULAR UNDERLINING. TO PROTECT 7HE SOIL FROM 7HE EROSIVE AFTER FINAL GRADE IS REACHED ON ANY PORT70N OF THE SITE. TEMPORARY SOIL STABILIZAT70N SHALL BE FORCES OF CONCENTRATED RUNOFF, SLOW 7HE VELOCITY OF CONCEN7RA7ED RUNOFF WHILE 27B-ELIOAK LOAM-2 TO 7R SLOPES. SOIL IS WELL DRAINED WI7H A MEDIUM RUNOFF APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN ENHANCING THE POTENTIAL FOR INFIL7RATION, AND TO STABILIZE SLOPES W17H SEEPAGE CLASSIFICATION. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0-8' THICK. THE DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO PROBLEMS AND/OR NON - COHESIVE SOILS USE WHEREVER SOIL AND WATER INTERFACE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80" AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. AND 7HE SOIL CONDITIONS, WATER TURBULENCE AND VELOCITY, EXPECTED VEGETATIVE COVER, ETC., ARE SUCH THAT THE SOIL MAY ERODE UNDER THE DESIGN FLOW CON0177ONS 34C-GLENELG LOAM-7 TO 15X SLOPES SOIL IS WELL DRAINED W17H A MEDIUM RUNOFF 11. ONCE THE SITE IS ROUGH GRADED, THE CONTRACTOR SHALL BEGIN PHASE Ill OF THE EROSION & SEDIMENT CLASSIFICATION SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0-8' THICK. THE CONTROL PLAN. THE CONTRACTOR CAN BEGIN INSTALLATION OF THE UTILITIES, CURB AND GUTTER, AND ROADS. 3.37 TEMPORARY SEEDING., DEPTH TO THE TABLE /S GENERALLY MORE THAN 80". INLET PROTECTION SHALL ALSO INSTALLED AS THE STORM SEWER IS CONSTRUCTED. INLET PROTECTION SHALL OF A• THE ESTABLISHMENT OF ATEMPORARYVEGETATIVECOVERON DISTURBED AREAS BY SEEDING 91 URBAN LANDRI 70 25% SLOPES MEDIUM RUNOFF CLASSIFICATION. 10" DEPTH To TO 2 BE INSPECTEDAFTEREACH RAINFALL EVENT AND REPAIRS SHALL BE MADE AS NEEDED. IF THE STONE FILTER WITH APPROPRIATE RAPIDLY GROWINGANNUALPLANTS. TO REDUCE EROSION AND DENSIC MATERIAL. SEDIMENTATION BY STABILIZING DISTURBED AREAS 7HAT WILL NOT BE BROUGHT TO FINAL BECOMES CLOGGED WITH SEDIMENT SO THAT IT NO LONGER ADEQUATELY PERFORMS ITS FUNCTION, THE STONE GRADE FOR A PERIOD OF MORE THAN 30 DAYS TO REDUCE DAMAGE FROM SEDIMENT AND REFERENCE. WEB SOIL SURVEY ONLINE DATABASE, FOUND AT RUNOFF TO DOWNSTREAM OR OFF-S17E AREAS, AND TO PROVIDE PR07EC77ON TO BARE hUp://websoilsurveynres.usda.gov/app/WebSo#Survey.aspx SOILS EXPOSED DURING CONSTRUCTIONUNTILPERMANENTVEGETATIONOR07HEREROSIONCONTROLMEASURESCANBE ESTABLISHED. 332 PERMANENT STABILIZATION: EROSION CONTROL NOTES 7HE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANTING ES-1: UNLESS OTHERWISE INDICATED ALL VEGETA7VE AND STRUCTURAL EROSION SEED. TO REDUCE EROSIONANDDECREASESEDIMENTYIELDFROMDISTURBEDAREASTOANDSEDIMENTCONTROLPRACTICES WILL BE CONSTRUCTED AND MAINTAINED PERMANENTLY STABILIZE DISTURBED AREASINAMANNERTHATISECONOMICAL, ADAPTABLE TO S17E CONDITIONS, AND ALLOWS SELECTION OF 7HE MOST APPROPRIATE PLANT MATERIALS ACCORDING TO MINIMUM STANDARDS AND SPECIFICA77ONS OF THE VIRGINIA TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR CONSTRUCTION ACTIVITIES ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. ES-2., THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO 3.38 TREE PRESERVATION AND PROTECTION: 7HE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO 7HE PR07EC77ON OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO DISTURBING AND CONS7RUCT70N ACTIVITY. TO ENSURE THE SURVIVAL OF DESIRABLE TREES THE FINAL INSPECTION. WHERE 7HEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CON7ROL, WATERSHED ES-3:ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PR/OR PROTECTION, LANDSCAPE BEAU7IFICA770N, DUST AND POLLUTION CONTROL, NOISE REDUCTION, TO OR AS 774E FIRST STEP IN CLEARING. MUST BE PULLED AWAY AND CLEANED AND/OR REPLACED. 12. ONCE PHASE IN OF CONSTRUCT70N IS COMPLETE, THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN THEN CONVERT THE SEDIMENT TRAP INTO THE PROPOSED SWM FACILITY. AT THIS TIME, THE CONTRACTOR CAN REMOVE THE REMAINDER OF THE EROSION & SEDIMENT CONTROL MEASURES. NO ITEM SHALL BE REMOVED THROUGHOUT ALL PHASES OF CONSTRUCTION UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE INSPECTOR GIVES PERMISSION. 13. THE CONTRACTOR SHALL MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 14. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. SHADE AND 07HER ENVIRONMENTAL BENEFITS WHILE 7HE LAND IS BEING CONVERTED FROM ES-4.' A COPY OF THE APPROVED EROSION AND SEDIMENT CON7ROL PLAN SHALL FOREST TO URBAN -TYPE USES. APPLIES IN 7REE-INHAB17ED AREAS SUBJECT TO LAND BE MAINTAINED ON THE SITE AT ALL 77MES. DISTURBING ACTIVITIES' ES-5: PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS 07HER 774AN 339 DUST CONTROL: INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OFF -SITE Paved construction entrance for erosion control plans 1992 REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A CONSTRUCTION ACTIVITIES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM SUPPLEMENTARY EROSION CONTROL PLAN TO 7HE OWNER FOR REVIEW AND EXPOSED SOIL SURFACES AND REDUCE 7HE PRESENCE OF AIRBORNE SUBSTANCES WHICH APPROVAL BY THE PLAN APPROVING AUTHORITY. MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT ES-6., THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL LIFE. DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND MOVEMENT OF DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE /N SEDIMENTA7ON AS DETERMINED BY THE PLAN APPROVING AUTHORITY. ACCORDANCE WITH THE VESCH. ES-7.•ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING S17E DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. ES-B.- DURING DEWATERING OPERATIONS WATER WILL BE PUMPED INTO AN APPROVED WATER FILTERING DEVICE. ES-9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. GENERAL SLOPE (3:1 OR LESS) PER ACRE 0 KENTUCKY 31 FESCUE 128 LBS. RED TOP GRASS 2 LBS. SEASONAL NURSE CROP 20 LBS. 150 LBS SEASONAL NURSE CROP FEBRUARY 16 THROUGH APRIL ANNUAL RYE MAY 1 THROUGH AUGUST 15 FOXTAIL MILLET AUGUST 16 THROUGH OCTOBER ANNUAL RYE NOVEMBER THROUGH FEBRUARY 15 WINTER RYE NOTES: 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32. 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION OF SEED APPLICATION, IN ACCORDANCE W/ VESCH STD 3.35. PS PERMANENT SEEDING SCHEDULE NO SCALE STD. & SPEC. 3.32 OF VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK, 3RD ED.) TABLE 3.39-A ADHESIVES USED FOR DUST CONTROL Water Application Dilution Type of Rate Adhesive (Adhesive: Water) Nozzle Gallons/Acre Anionic Asphalt Emulsion Latex Emulsion Resin in Water Acrylic Emulsion Non -Traffic) Acrylic Emulsion Traffic) Va. DSWC 7: 1 Coarse Spray 1,200 12.5:1 Fine Spray 235 4:1 Fine Spray 300 7:1 Coarse Spray 3.5:1 Coarse Spray TABLE 3.31-B ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS QUICK REFERENCE FOR ALL REGIONS" Rate Planting Dates Species lbs./ acre) Sept. 1 - Feb. 15 50/50 Mix of Annual Ryegrass Lolium multi- florum) 50 - 100 Cereal (Winter) Rye Secale cereale) Feb. 16 - Apr. 30 Annual Ryegrass 60 - 100 450 (Ilium multi-florum) 350 May 1 - Aug 31 German Millet 50 Setaria italica) 6- MIN 2•A AGGREGATE BASE PROFILE 7'. I 70' M' N. ONSIHJC"10`+ I ASPHALT PAVED wASHRACK EXISTING - 2X PAVEMENT- 2XX 12' MIN.- VUST EXTENDFULLWIDTHLo DRAINAGE TO SEDIMENT Of INGRESS AND EGRESS 1+-POSITIVE TRAPPING DEVICE OPERATION AM 12' WN. jO5 DRAIFIAGE TSEDIMENT TO SEDIMENT TRAPPING DEVICE ixtiTic.:iXrtJr4mwi FILTER C_ 0'HJ A ulllwlaall wain tap of I inch must be installed with a nwwulwe I each ballcock shutoff vah a supph•ma a Hash hose mlh a lhauleto of 1 c wcha•> toe ade4plate Eoew'taut Pie5s]a C. Wash watel 111115t be canted awa\hool Nee e11ha0ce to all appeoved settluw sea to lauove saWuaN .- Ill se.lauau shall be pleveltecf 5om euteemst 4"1111 champ . dltc he. of W.Itel c oul e< PAVED WASH RACK NO SCALE l I FL IF 3. ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND IT INTO THE TRENCH. 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. Source: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control, Sherwood and Wyant 1992 3.02 STONE CONSTRUCTION ENTRANCE 70' MIN. I EXISTING FILTER CLOTH' 0' MINJ 41 F' SIDE ELEVATION 3ROUND WASHRACK cilrlg w:i :t, p i6rl., SI pIGIt1iT 11- ' IL. !i 'ilai°•. i.•iv nglaly. II+oaQp S.e!•aC Y!{a IIII I I I I I!•'ia:T': L VDDT IN POSITIVE DRAINAGE COURSE AGGREGATE B TO SEDIMENT I TRAPP[NG DEVICE MUST EXTEND FULL WIDTH OF INGRESS AND EGRESS PLAN VIEW OPERATION 12' MIN. SECTION A -ARE SECTION B- B Source: Adapted from 1983 Maryland Standards for Soil Erosion and Sediment Control, and Va. DSWC 1992 FENCING AND I DRIP UK SNOW FENCE r" F--] L#000 Pill am PO IOII' MIN. EXISTING PAVEMENT 10' MIN. ORINC BERM Plate3. 02-1 3. 38 CORRECT TRUNK ARM ORING r TRIANGULAR BOARD FENCE Source: Va. DSWC 3.05 1992 SCO TT / R. 01-LLINS IZ Lic. No. 035791 p 7/17/ 20 J Z O On a On Ln ZLU U z O 0 z O a a F 1 U) w H©rl 0 N n 0 0) CAI WNO WN N z Q L9W U W Plate 3. 38 2 0 3. 05 J z 11 CONSTRUCTION OF A SILTFENCEWITHOUT WIRE SUPPORT) 1. SET THE STAKES. 2. EXCAVATE A 4"X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES. 00 FLOW 3. STAPLE FILTER MATERIAL TOSTAKES AND EXTEND IT INTO THE TRENCH. 4" 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. i FLOW SHEET FLOW INSTALLATION PERSPECTIVE VIEW) POINTS A SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION FRONT ELEVATION) Source: Adapted from Installation of Straw and Fabric Filter Plate 3.05-1 Barriers for Sediment Control, Sherwood and Wyant Q WU Lfl W W H- z I. W W J H- IJW W 0CD CD O U O N Ga Plate 3.05- 2 zJ H Q I^.L Q I.. L 0 W LU H J Q J H n z LU zOa J// J LL O z U Ov I L LU f Cw co F-4 LLJ 0 V / z as 12 z LU O LU U-) U0 w x JOB NO. 192036 SCALE 1"=20' SHEET NO. 3 I \ H 0 o / / I I \ / / / U.S./'ROUTE 29 (NORTHBOUND) I o // SEMINOLE TRAIL / A m \ VARIABLE WIDTH PUBLIC Fe/W \ \ I // S OTTNo. 035791 aPROPOSEDORANGESAFETYFENCE iz'x7o'MIN.OFTHE EXISTING ASPHALT TO ENCOMPASS SEDIMENT TRAP // / I / 0 0 7/ 17/20 ENTRANCE SHALL REMAIN AND AND ITS OUTFALL AT ALL TIMES FOR SAFETY. INSTALL SIGNS AROUND SS FUNCTION AS THE CONSTRUCTION I I / " TRAPTHATREAD "DANGER, QUICK pONAL E Poe ENTRANCEFORTHEPHASEI & II ESC PLAN SAND DO NOT ENTER" \ / o J i 0 / PROPOSED 4.2 l \ 1 ' \ / WIDESTONEWEIR v OUTFALL sr— Sr—sr'—sr__n_ s _ —..-. - s s sT sr sr _ oN sr sTs sr_ - < ',•: .:., l \ —sT— sr . sr\ sr , - ST sT— sr—sr—sT J af_ sr— •. j,.-•,:. .,_ CTsT Sr m / / / Sr I J 7 / --- ---------- — Q i o / — M W /-----yTr — o / / Via, —_— z Do I . \\\\\ Ian vH, Z IITMP 61-129 N/ F J.C. PENNEY PROPERTIES, INC / W rt — — / / { - \ ) DB 1908 PG 726 V A A \ / D84355 PG-15,2 lie NOTE: THE FUELING TANK SHALL BE COMPLETELY / / / Ti / \ \ SURROUNDED BY A 2' DEEP, 2' WIDE EARTHEN BERM WITH A HEAVY MIL POLYETHYLENE LINING. — / / / / / ° / / SILT FENCE TO THE PROPOSED BERM SHALL CONTAIN FUEL / / / / / / ° _-- _ / ENCOMPASS SHOULD IT BE SPILLED, SPILLED FUEL SHALL NOT STOCKPILE BE RELEASED OUTSIDE THE LIMITS OF THE / / / / '" PROPOSED LOCATION LOCATION__ CONTAINED FUEL STORAGE AREA. CONTRACTOR / / / / / OF FUEL STORAGE / D D \ / — SHALL ENSURE THE BERM VOLUME IS io% LARGER / / / \ V __ - — TS PROPOSED LIMITS OF I WITH EXISTING NCE-- SILT FENCE COINCIDES WITH EXISTING THAN THE MAXIMUM VOLUME OF STORED FUEL. o 11 PROPERTY LINE / N CONTRACTOR MAY ALSO ELECT TO PLACE THE / / / 1 — _ PROPOSED STORED FUELINANACCESSIBLEDUMPSTER. / / / / TMP 61- 134 \ /5 = — - LOCATION O CAVALIER COUNTRY BANK ( - - DUMPSTER(5) DB 527PG43 — Sediment Trap Design DB 327 PG 228 (PLAT) n • — --- \ / - - / DB 468 PG 456 (PLAT) / _ PROPOSED drainage area ( acres) (<3) 0.69 1'' "AR1BLF / // — — LOCATION OF trap volumes: sroxewEiR lumes: PROPOSED2' DEEP GRADED DEPRESSION &-S\ aRmna y. / / / / CONTRACTOR PARKING . __PORTA-POTTY elevation (ft) area (sf) wlume(cf) volume(cy)cy) AND \ —' TAGiNGA13EK- 468 366 0 0.0 y WITH A RUBBER MEMBRANE LINING TO 468.5 505 217 8.0 - WpyB p PREVENT SOIL INFILTRATION, SHALL BE / / _ — _ — — PROPOSED /o 1 L9 DRY STORAGE _ _ , / — \ 469 657 506 18.8 `' USED FOR THE CONCRETE WASHOUT AREA. f/ LOCATION OF 469.5 822 875 32.4 —RAIN GAUGE I Z 470 998 1,330 49.3 WETSTORAGE /i% — 48 • — PHASE I_- DRAINAGE 470.5 1179 1,873 69.4 1Dx"""TE0I ELTER OLOTN OPoCiuAL -- — 471 1368 2,510 s2s O'ER"°/% — — — - AREATO SEDIMENTCL 471.5 1563 3,242 120.1 SEE RATE 3.13-1 C \AGGREWT _ Cl S I RPRAP TS TRAP= 0.69-ACRES -- S — / \ 472 17654,073 150.9 i NlNII / NlININ —-_ - -- ----_ / I — 4-96 / // // vv ( \A 1 m Z NlNIINI w a _ - / / \ \ \ \ \ Q wet storage: / 3 / \ wet storage required (cy) (67*DA) 46.2 / / N/N --- / — —> — — / / / / / _ / _ \ — \ \ \ V1 bottom of stone weir (ft) 470.0 . ! . — 1 / / \\ > J wet storageprovidedatthiselevation (cy) 49.3 N x --- ---- _ / W j / / / _ _ I \ \ \ \ ` _ c slope of wet storage sides 2:1 /N/////N / / / — — — — — I \ TP x' III _ / ///- I :=: W weir length (ft) (6xDA) 4.1 N/N / —496— / / / / / dry storage: bottom of trap elevation (ft) 468 / z i\ a o / — — — — — — — — — — — g lllllNlll / dry storage required (cy) (67*DA) 46.2 bottom trap dimensions: 57k8' / --- - / \ / III — — -z NlININI CONTRACTORSHALLINSTALLSILTFENCE & THE Lu crest ofstoneweir471.0 top of dam elevation (ft) 472 / / N//N// / PROTECTIONALONG THE REAR OF THE PROPERTY. THE SILT / o m / / / / ~ O dry storage provided at this elevation (cy) 92.9 top width of dam (ft) 4' / / I u1 > U FENCE SHALLREMAININPLACEUNTILTHESEDIMENTTRAP — -a _ of drystoragesides3:1 top trap dimensions 8Tx22' / IS CONVERTED TO A PERMANENT SWM FACILITY & THE ESC L in — slope / — _ _ / WINSPECTOR HAS GRANTED APPROVAL OF ITS REMOVAL. W 4 At W W v l W W W W v v v At A /I I --- 1chANAGED _ \ / \ / // // STEEP SLLOP€ — / Q .J W 4—ST— ST—ST O Q x Z z ST — ST = ST — / / I U DRAINAGE DIVIDUE (TYP.) Si no v O —/ T ST sr_55T o /v 90 / v/ `\ \•\ 1MP 61- 134\ A SAP—ST oH n 14, ALBEMARLE BANK AND TRUST COMPANY `\\ / W O 0.908 ACRES'(39,547 SF) / [ n/ FLOW DIRECTION V A `\ / / W W V // j L/ W W / / \ `\ TMP 61- 129 7 ` \ N/F J. C. PENNEY PROPERTIES, INC W / / 471- \ \ DB 1908 PG 726 W I _ / — — — ` \ DB 4355 PG 62s -. AI I _ / / / / / [ Q• v v v E- 469--_---- v v ° I I // J w W v_ 6 W J O N 7 — — — — — / __ A v // / vv --_- //1 I z 047ii/ w Lu p w 472 ( JOB NO. 2036 GRAPHIC SCALE ` GRAPHIC SCALEU i— I— — / / .. - AVA / / / / SCALE 10 0 5 10 /20 r 20 / 0 10 20 40 4 / + i `/iyti i /ll / ASSHOWN IN FEET z/ / + \ _ \ / / / / / I I / ( IN FEET) / — -- SHEET NO. 1 inch = 10 ft. / / L / d i I / / / \ _ / / / / // I / 1 inch = 20 ft. / 4 L TH U.S/ROUTE 29 (NORTHBOUND) I o I SCOTT R. LLINS SEMINOLE TRAIL / A m O VARIABLE WIDTH PUBLIC Rl/W \ \ I // U Lic. No. 035791,a PROPOSED ORANGE SAFETY FENCE 7/17/20 Q TO ENCOMPASS SEDIMENT TRAP CE SHALL REMAIN ANDFTHEEXISTING SAFETY. AND ITS OUTFALL AT ALL TIMES FOR / / I / / SS10NAL V, ENTRANCE HA SAFETY. INSTALL SIGNS AROUND / FUNCTION AS THE CONSTRUCTION / ITRAPTHATREAD "DANGER, QUICK / ENTRANCE FOR THE PHASE I & II ESC PLAN SAND, DO NOT ENTER" \ \ / oPROPOSED4.i \ J I / I WIDESTEIR OUTIALL r' — s sr s sr/ r sr _ sr sr % ' ': y / oH\ r i — — — r' — / --- 7' 0 / / o—W _ / \ a --- -- / \ a/ / ® / \ ITl vl o / , / v \\\ _ ® / / z a o TMP 61-129 /WN/F J.C. DB N908 _PROPERRTIES, INC / N\ \ \ / DB-4355 PG--625_ Ii NOTE: THE FUELING TANK SHALL BE COMPLETELY / / HSURROUNDEDBYA2'DEEP, 2'WIDE EARTHEN // //'PHASE 11 DRAINAGE_ BERM WITH A HEAVY MIL POLYETHYLENE LINING. ' / / / AREA TO SEDIMENT SILT FENCE TO ENCOMPASS THE PROPOSED BERM SHALL CONTAIN FUEL ` ----_- / TRAP=o.6 ACRES / STOCKPILE _ SHOULD IT BE SPILLED, SPILLED FUEL SHALL NOT / / / / / / / ' 9 BE RELEASED OUTSIDE THE LIMITS OF THE / / /' \ PROPOSED LOCATION / LOCATION— OF FUEL STORAGE iCONTAINEDFUELSTORAGEAREA. CONTRACTOR / / --- - DD \ / PROPOSED LIMITS F ISTURBANCE & — SHALL ENSURE THE BERM VOLUME IS io%LARGER ' -- _ -- - S — / o THAN THE MAXIMUM VOLUME OF STORED FUEL. / / /' \ V I ;--\ \ / - _ _ / _ _ — — SILT FENCE COINCIDES WITH EXISTING /— CONTRACTOR MAY ALSO ELECT TO PLACE THE / ' /' \ _'_ I _ —_ PROPERTY LINE— rl STORED FUEL IN AN ACCESSIBLE DUMPSTER. \ T I L \ — — — — / l TMP 61-134 ROPOSED CAVALIER COUNTRY BANK I i .Y LOCATION DB 527 PG 43 -, DUMPSPS) DB 327 PG 228 (PLAT) Iyi'' - - 486 DB 468 PG 456 (PLAT) \ PROPOSED / 0 _ / / / \ LOCATION OF— PORTA-POTTY PROPOSED z' DEEP GRADED DEPRESSION, — — f CONTRACTOR PARKING AL a — STAGfNG AREA _ E / / / . WITH A RUBBER MEMBRANE LINING TO — o — — PREVENT SOIL INFILTRATION, SHALL BE - / - — / \ — USED OR THE CONCRETE WASHOUT AREA./ — — — — — — — — LOCATION D / LOCATION OF / / — — — — — — AIN GAUGE Or / NlNINIIII / -- —— — — — — — — — =—--- — / ll — It Lu Lu llNllllll ' . —496— X \ I pI- / / / / / / -- v----=--' f/ N J Z CONTRACTOR SHALL Ih75TALLSILT FENCE & TREE \ \ IIII p w — \ (\ NlNII / lNllNlN PROTECTION ALONG THE REAR OF THE PROPERTY. THE SILT— FENCE SHALL REMAIN IN PLACE UNTIL THE SEDIMENT TRAP s = _— — — — _ — — / .• 1S CONVERTED TO A PERMANENT SWM FACILITY & THE ESC \ / LL Q / / // // — — _ / I— V 1 HAS IT REMOVAL.. --_ _ _ _ _ _ INSPECTOR HA APPROVAL OF S RE L / I Lug 501 i NIANAGED v / \ / / // / O —(wSTEEPSLOPE$$ 0 DRAINAGE DIVIDE (TYP.) \ / / n TMP 61-134A A — o // ' / W O NJF ALBEMARLE BA K AND TRUST COMPANY \ 0.908 ACRES (39,547 SF) \ / / / / / "' wVADB646PG508 — v WI FLOW DIRECTION \ V A ARROW(TYP.) WLu v) EROSION & SEDIMENT CONTROL LEGEND i' \ \ \ \ \ \ \ \ \ \ • \ \ / / / ' ' F Q0 \ TMP 61-129 / / / / z of VIRGINIA EROSION& SEDIMENT CONTROL \ I \ / \ \ \ N/F J.C. PENNEY PROPERTIES, INC HANDBOOK SPECIFICA TION NUMBER I I I I / \ DB 1908 PG 726 DB 4355 PG 625 CE CONSTRUCTION 3.02 ENTRANCE I I I I / / \ / / / % SF Lu z SILT FENCE 3.05 I I \\ \\ I\ V \\\ / / / / / % IIII J W ClP CULVERT INLET 3.08 I A V A V I / / / // / PROTECTION I I A V A A \ V A \ \ / / / / X / / O OD TEMPORARY 3.09 DIVERSION DIKE RW TEMPORARYRIGHT- 3.11 \ \ \ \ \ / »> / / \ \ _ _ / / — — — — — --- -- — -- --- -- -- OF-WAYDIVERSION / ST TEMPORARY 3.13 SEDIMENT TRAP RRSEE RIPRAP 3. 19 A - \\ \ V A \V I—__-- _,Y/ w ul TS TS TEMPORARYSEEDING 3.31 A A \ V AV I I \ ) \ / / / // / p PS PS PERMANENT SEEDING 3.32 \ I ` \ I\ \\ \ \ \ / / / / - --- -- JOB NO. Tp TREE PROTECTION 3.38 \ \ \ \ ;' 192036 OC OC GRAPHIC SCALE DUSTCONTROL 3.39 \\ A A V V A AV A \V // % j SCALE V v v A V A \ V A A \ A j// zo o 10 zo ao 1"=20' NOTE: D A \ V A \ V A A ' %` / // ' LLDISTURBEDISTNIBD ARASNOT COVER AFTER PAVED MIDST HAVE INAL A \\ \\ \ \ \\ \\ \ \\ \\\ /// yam / //// I //// ( IN FEET _ SHEET NO. GRADING IS COMPLETED. \ \ \ \ \ / I 0 — — — -- - I 1 inch / 20 ft. Jr Z- o U.S/ROUTE 29 (NORTHBOUND) 1 0 NOTE: CONTRACTOR SHALL ENSURE AN I i SCOTT R. LLINS SEMINOLE TRAIL / \ m I O 1 VARIABLE WIDTH PUBLIC Rl/W \ \ U Lic. No. 035791 a I ADEQUATE GRAVEL OR PAVED CONSTRUCTION I / ENTRANCE IN ACCORDANCE WITH MINIMUM I / // 7/17/20 VESCH STANDARDS. CONSTRUCTION ENTRANCE------,, 1 CE SHALL BE A MINIMUM OF i2'x7o' AND SHALL I / / I / / ' SIONAL REMAIN UNTIL APPROVAL TO REMOVED IT HAS \ / y / BEEN GRANTED BY VDOT & THE ESC INSPECTOR V / O d / STST IS [El D S ST ` I \STSA / s sr sr - s- ' , _ — sT sr —sr_ s, — s— / o i sr_- _ :-. " T sr— ONE r/ / sr iri I / l / \ F m I ww w PROPOSED DRY, 4 / / z DETENTIONS BASIN B' i z PROPOSED UNDERGROUND I I I I I i TMP 61-129 / DETENTION SYSTEM ,A'- I I l I J I I N/F J.C. PENNEY PROPERTIES, INC / W DB 1908 PG 726 / / lie D6-4355 PIG 625_ - - _ NOTE: THE FUELING TANK SHALL BE COMPLETELY PHASE III DRAINAGE \\ \ // / AREA TO SEDIMENT v / / SURROUNDED BY A 2' DEEP, 2' WIDE EARTHEN / / / / / i ` BERM WITH A HEAVY MIL POLYETHYLENE LINING. , ' / / / / / ' TRAP=o.6g ACRESTHEPROPOSEDBERMSHALLCONTAINFUEL / / PROPOSED 5' WIDE CURB CUTS WITH PEA SHOULD IT BE SPILLED, SPILLED FUEL SHALL NOT / / GRAVEL & FILTER FABRIC UNDERLAYMENT BE RELEASED OUTSIDE THE LIMITS OF THE / / TO DIRECT RUNOFF FROM PARKING LOT ? / p , V — CONTAINED FUEL STORAGE AREA. CONTRACTOR / / / / / INTO DRY DETENTION BASIN B' / ST e — SHALL ENSURE THE BERM VOLUME IS io%LARGER / / / PROPOSED LIMITS F ISTURBANCE &' / / THAN THE MAXIMUM VOLUME OF STORED FUEL. / / / / / \\ — - i ;- _ — — — SILT FENCE COINCIDES WITH EXISTING / / — — — — — — n CONTRACTOR MAY ALSO ELECT TO PLACE THE / / / `i // DC PROPERTY LINE STORED FUEL IN AN ACCESSIBLE DUMPSTER. / / / PROPOSED 3.5' WIDE CURB Fj— — — — \ i .J ; i / _ \ — — — — — — / — _ _ l rl TMP 61-134 FILTER ABRIC UNDERLAYMENCUTWITHPEAGRAVELTl_ `_ —' i ^ —- R POSED . e // CAVALIER COUNTRY BANK TO DIRECT RUNOFF FROM L { --.LOCATION O / / — 8 — — / / DB 527 PG 43 PARKING LOT INTO DRY DUMPSTE -- _ DB 327 PG 228 (PLAT) DETENTION BASIN 'B' T / i DB 468 PG 456 (PLAT) — — \ PROPOSED / / ° Z LOCATION OF ORTA-P TTY PROPOSED 2' DEEP GRADED DEPRESSION, / — — — \ CONTRACTOR PARKING WITHARUBBERMEMBRANELININGTO _— -- & ST GIN AREA 0 Lu/ PREVENT SOIL INFILTRATION, SHALL BE / — — _ — — pR015O5 USED OR THE CONCRETE WASHOUT AREA / — f — — — — — — — OCATION OF AINGAUGE 11111r 487-=— / ------ // // \ \CL l/1 ------ _ -----= _ c Z J NlINII _ - -4 lNINIIN / --- --- — x % I - ->-u Ctf NIININI _ _ /' II--¢-- / / / —_. — I \ —_—= a1 J,J N////// ' x _ \ II ao // / / / / ----------- ---_- - // Z Sr — _ — V /I - _ W - _ / / / / / CONTRACTOR SHALL INSTALLSILT NCE & TREE \ \ /III p w / / / / j — — — — — \ , O NlNII / NlININ PROTECTION ALONG THE REAR OF THE PROPERTY. THE SILT = m — - FENCE SHALL REMAIN IN PLACE UNTIL THE SEDIMENT TRAP 15 CONVERTED TO A PERMANENT SWM FACILITY &THE ESC INSPECTOR HAS GRANTED APPROVAL OF ITS REMOVAL. w W g I - - --- - 50 - /I III ----- // / // / / q MANAGED v W STEEP SLOPES-_ z DRAINAGE DIVIDE (TYP.) % V / / // J o i ( n TMP 61-134A A o ALBEMARLE BA K AND TRUST COMPANY 0. 908 ACRES't39,547 SF) - A / / / / "' W W DB 646 PG 50B,' FLOW DIRECTION \ , A A ARROW( TYP.) o A /// /ii/ TMP 61-129 N/ F J.C. PENNEY PROPERTIES, INC \ V 1 A / / / / 2 DB1908PG726F- DB 4355 PG 625 I I W Lu z II I I \ \ \ \\ \\ /// % / ---------- - - - JOB No. a cn GRAPHIC SCALE 192036 20 0 10 20 40 1'= 20' l/ IN FEET) --SHEET NO. 1 inch / 20 ft. — — — -- — 6 I aJarla J l'llalg.7N1:11'I110G\Ia:17G11/GK1a1'llalg Iypll6ialf rit5 Y 1.7Ga]a9a JJGIa1gL.71 1:11'1141/G\Ia:17/11PR7a1'llalg J 1111 iL1f tid RAPHIC \ CAL / Pre -Development Impervious Area Summary Subarea A 30 of 15 I 30 \ 60 ParkingAreas 125 sf IN FEET) 1 inch = 30 fit, U./S/ROUTE29 OTRAHBOUN SEMINOLE VARIABLE WIDTH PUBLIC WW M N. 1W W T o j si sT-sr-mar-"$r"_ .. :`.'1' ;'. .;-.:..-"'. •'-' A.'. ^,, -.: .' .. - o ST o - 77 W -IIIIIAW" EH" DEFINING PRE-DEV.SUBAREAS A & B) IS LOCATED-AYTHE POST-DEVELOPMENT„gpp XUPB CUT (DEFININGSUBAREASA PHASE I (PROPOSED WITH THISP N)/ 10- TORECEIVE SWM TREATMFNT UNDERGROUND DETENTI(*SfSTEM 'A' V / - - &DETENTIION BASIN 'B' VA \ A SMALL PORTIONfd H EXISTING, OFFSITE -- 4 IMPERVIOUS .9REAS ASS CIATED WITH THE / ENTRANCE ARE RELEASE ONTO RTE. 29 IN A / / SEE/THIS SHEET, BELOW, FOR SHEET FLOW MANNER. THI OFFSITE DRAINAGE / / ------ - _ / / / HE FULL DEPICTION OF THE WILLCONTINI T IN THIS MANNER IN j \ _ _ / THE POS-DEVELOPM NT SCENARIO. / ESC LIMITS OF DISTURBANCE. V --A 4 aae / /o SUBAREAS A & B 0.78 Ba-- o / PROPOS D BOUNDARY FOR THE ESC LIMITS 1 Tc=0.16 hrs. i OF DIS RBANCE (1.14 ac.) DEFINES THE - . ! i / J PROP SED BOUNDARY FOR THE VRRM -49 I_ _ /^ WATE QUALITY REQUIREMENTS, TYP. • - I - / ^. - / / j / I i/ _ - / \ owoEFOLF - / GONG. FLOW ' it AV 501- v v v \ XUNDEVELV o O` General Construction notes for Stormwater Management Plans \ 506 PORTION OF 1. All dams and constructed fill to be within 95% of maximum dry \ \ \ \ \ . , THE SITE \ / density and 2% of optimum moisture content. All fill material to be approved by a geotechnical engineer. A geotechnical engineer is to be present during construction of dams. 2. Pipe and riser joints are to be watertight within stormwater _ o management facilities. \ \ - - - - J . \ \ 3. For temporary sediment traps or basins which are to be converted \ \ \ / / to permanent stormwater management facilities; conversion is not \ \ \ \ // j to take place until the site is stabilized, and permission has been \ } obtained from the County erosion control inspector. WATERSHED SUMMARY FOR SUBAREAS A & B Area, 1-year Flow, 2-year Flow, 10-year Flow, CN ac. cfS cfs cfs / / DA A & B (Pre-Dev.) 57 0.78 0.13 0.34 1.33 CN Area, 1-year Flow, 2-year Flow, 10-year Flow,- ac. cfs cfs cfs DA A (Post-Dev.) 66 0.54 0.04 0.10 1.26 DA B (Post-Dev.) 76 0.24 Total 69 0.78 NOTE: DA A is routed initially through UGD System W, and then routed through Detention Basin 'B' COUNTY OF ALBEMARLE Department of Community Development Construction Record Drawings (As -built) for VSMIP The following is a list of information required on construction record drawings for stormwater facilities (reference Water Protection Ordinance 17422). It is preferable that the construction record drawing be prepared by someone other than the designer. Please do not provide design drawings as construction record drawings. A. A signed and dated professional seal of the preparing engineer or surveyor. B. The name and address of the firm and individual preparing the drawings on the title sheet. C. The constructed location of all items associated with each facility, and the inspection records to verify proper dimensions, materials and installation. The items include, but are not limited to the following: 1. Inspection Records and photographs for pipe trenches and bedding, including underdrains. 2. Video PIpe Inspection for any pipes which are not accessible or viewable. 3. Updated Location with goo -coordinates of all facilities. 4. Verified Drainage Area traps for the drainage area treated, and for drainage to the facilities. 5. Current physical and topographic surve for all earthen structures. Ponds should include a survey PYYYof the pond bottom. Surveys should verify pond volumes are per design. Corrections may be required for alterations from the design. 6. Plants, location and type. 7. Plans and profiles for all culverts, Pipes, Risers, Weirs and Drainage Structures - Display the installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s), inlet and outlet protection, alignment and invert elevations compared to design. 8. Computations: For significant deviations from design, provide sealed computations verifying that P !;m gn. P P Ym8 the as -built condition is equivalent or better than design. 9. Ditch Lines - Display the constructed location of all ditch lines and channels including typical PY . g sections and linings. 10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage must be within platted easements. Provide copies of recorded documents. 11. Guardrail, fences or other safety provisions - Display the constructed location of all safety provisions; fences, guardrail, including the type, length and applied end treatments, compared to design. 12. Material layers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to material types and depths. Include inspection reports, boring or test pit reports and materials certifications. Biofilter media must be an approved state mix. 13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable. 14. Compaction reports are required to verify fill compaction in dams. 15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning. GENERAL SWIM FACILITY NOTES: 1. CONTRACTOR SHALL CALL THE COUNTY INSPECTOR & ENGINEERING DEPARTMENT 24-HOURS BEFORE ANY ANTICIPATED CONSTRUCTION ACTIVITIES FOR THE BMPs. THIS IS INCLUSIVE OF WHEN THE UNDERGROUND DETENTION SYSTEM SUBGRADE IS READY FOR PIPE CONSTRUCTION, BUT BEFORE STONE BEDDING IS INSTALLED. 2. PROPOSED OUTLET PROTECTION BELOW THE UNDERGROUND DETENTION SYSTEM W OUTFALL TO CONSIST OF Aio' WIDE, 4 LONG, A" DEEP VDOT CL. Al RIPRAP LINED APRON WITH FILTER FABRIC UNDERLAYMENT. APRON TO BE LOCATED BETWEEN THE PROPOSED ENDWALL AND THE BASIN FLOOR, AS SHOWN. OUTLET PROTECTION SHALL THEN TRANSITION TO A FLAT/ o% T IGRADEATTHEBASEOFTHEEMBANKMENT &SHALL EXTEND TO THE DETENTION BASIN'B' RISER STRUCTURE0 REDUCE THE RISK OF SCOUR & ORIFICE CLOGGING. FILTER FABRIC UNDERLAYMENT SHALL BE KEYED INTO THE EXISTING GROUND A MINIMUM OF 9" AT THE ENDS & ALONG THE PERIMETER. EDGES OF FILTER FABRIC SHALL OVERLAP A MINIMUM OF 12". 3. THE DETENTION BASIN B EMBANKMENT SHALL BE CONSTRUCTED IN ACCORDANCE WITH THE DETAILS & DESIGNS SHOWN ON THIS PLAN. 4. LOW -FLOW ORIFICE DIAMETERS LESS THAN 3" ARE REQUIRED TO MEET MINIMUM ENERGY BALANCE CALCULATIONS. TO REDUCE THE RISK OF CLOGGING, TRASHRACKS ARE PROPOSED ON ALL ORIFICES AND THE DE TENTION BASIN 'B' RISER. ADDITIONALLY, THE RIPRAP OUTLET PROTECTION BELOW UNDERGROUND DETENTION SYSTEM 'A' WAS EXTENDED (AS DESCRIBED ABOVE IN #2) AT A o%SLOPE TO REDUCE THE RISK OF CLOGGING DETENTION BASIN B's LOW -FLOW ORIFICE. ALSO, PRIVATE DROP INLET STIR. 41S PROPOSED TO HAVE A REBAR GRATE TRASHRACK ACROSS ITS THROAT'S OPENING TO REDUCE THE RISK OF CLOGGING THE LOW -FLOW ORIFICE IN UNDERGROUND DETENTION SYSTEM A. STORMWATER MANAGEMENT NARRATIVE: OVERVIEW THIS PROJECT PROVIDES STORMWATER MANAGEMENT SWM PRACTICES TO MITIGATE THE IMPACTS FROM THE PROPOSED IMPROVEMENTS. THIS STORMWATER MANAGEMENT PLAN COMPLIES WITH PART IIB SWIM REQUIREMENTS. WATER QUALITY SUMMARY THE STORMWATER QUALITY REQUIREMENTS FOR THIS DEVELOPMENT ARE MET THROUGH THE BEST MANAGEMENT PRACTICE OF PURCHASING NUTRIENT CREDITS. A MINIMUM PHOSPHOROUS REMOVAL RATE OF 1.03 Ibs/yr IS REQUIRED. THE DEVELOPER WILL PURCHASE NUTRIENT CREDITS PRIOR TO THE ISSUANCE OF A LAND DISTURBANCE PERMIT. PLEASE SEE THE ATTACHED CALCULATIONS PACKET AND THIS SHEET FOR ADDITIONAL DETAILS. WATER QUANTITY SUMMARY THE PROPOSED DEVELOPMENT HAS ONE CONCENTRATED OUTFALL. THIS OUTFALL IS DIRECTED INTO A MANMADE STORM SEWER INLET LOCATED ON SEMINOLE TRAIL. ITS DRAINAGE AREA (SUBAREAS A & B) MEETS MINIMUM CHANNEL AND FLOOD PROTECTION REQUIREMENTS SET FORTH IN 9 VAC 25-870-66. SUBAREA A RECEIVES ATTENUATION VIA UNDERGROUND DETENTION SYSTEM 'A' INITIALLY, AND IS THEN DIRECTED INTO DETENTION BASIN 'B'. SUBAREA B's INFLOWS AND SUBAREA A's ROUTED OUTFLOWS WERE SYNCHRONIZED. THE SYNCHRONIZED STORM EVENTS WERE THEN ROUTED THROUGH DETENTION BASIN 'B'. THE RESULTANT DETENTION BASIN 'B' ROUTED OUTFLOWS ARE COMPLIANT WITH MINIMUM COUNTY & STATE REQUIREMENTS. IN SUMMARY, CHANNEL PROTECTION FOR SUBAREAS A & B IS MET THROUGH 9VAC25-870-66 SECTION B.3.a (ENERGY BALANCE) AND FLOOD PROTECTION IS MET THROUGH 9VAC25-870-66 SECTION C.2.b. (10yr. POST FLOW < 10 yr. PRE FLOW). COMPLIANCE WITH THESE SECTIONS IS ACHIEVED PRIMARILY THROUGH THE PROPOSED UNDERGROUND DETENTION SYSTEM 'A', THE PROPOSED DETENTION BASIN 'B' AND THE REDUCTION OF RUNOFF EXITING THE PROPERTY UNDETAINED. PLEASE SEE THE ATTACHED CALCULATIONS PACKET AND THIS SHEET FOR ADDITIONAL DETAILS. RAPHIC v CAL / P p y Post -Development Impervious Area Summary 01 15 I 30 \ 60 \ 120 / \ Subarea A Building 2,900 sf ParkingAreas 1,100 sf IN FEET) \\ / // / Sidewalks & Concrete 1,000 sf 1 inch = 30 ft. / 5,000 sf U. S/ROUTE 29 (NORTHBOUNq) \ Subarea B SEMINOLE TRAIL / A VARIABLE WIDTH PUBLIC WW \J ParkingAreas 3,825 sf Sidewalks & Concrete 475 sf 4, 300 sf W W IT IT POST- DEV. SUBAREA A ROUTED TO UGD SYSTEM A, THEN DETENTION BASIN B) I0. 54 ac., CN=66, Tc=0.15 hrs. i J ENTRANCE CONTI LLi 2 / j Z / T ANCESMALPORTI N OF THE RELEASED UES TOBERELEASED2W / ONTO'RTE. 29 IN A HEET FLOW MANNER, U m / 6CS SHOWN. A PR POSED CURB CUT & F- 41' BRAIN ILL DIRECT THE BULK OF THE REPOSED D ELOPMENT's RUNOFFU) ENTION BINDETENTIONSYSTE FOR ATTENUATION. POST-DEV. SUBAREA B y' / / o - - - - r (ROUTED TO DETENTION BASIN B) 0.24 ac., CN=76, Tc=0.10 PROPOS D BOUNDARY FOR THE ESC LIMITS OF DIS RBANCE (1.14 ac.) DEFINES THE PROP SED BOUNDARY FOR THE VRRM WATE QUALITY REQUIREMENTS, TYP 4 49 6 - \/ \ J d 0 OW 100 OF OLF w/ A ELEV=16'- \ \ I I / / za OF SHALLOWFLow LE=r-& \ /^ I I\ _ / // / 18"F CHANII FLOW IN DITCH_& PIPE O UNDEVELOPED sosV A PTHE IOITTE V A \\ \ V I A A \ - v ° 10 CHANNEL & FLOOD PROTECTION SUMMARY Pre-Dev. Post-Dev. Method of 9VAC25-870-66 Method of 9VAC25-870-66 Method of 9VAC25-870-66 Method of 9VAC25-870-66 Subarea Subarea Channel Protection Compliance Limits of Analysis for Channel Protection Flood Protection Compliance Limits of Analysis for Flood Protection A & B A & B Section B.3.a (Energy Balance) N/A (Energy Balance Satisified) Section C.2.b (10-yr. Post Flow < Pre Flow) N/A (10-yr. Post Flow < Pre Flow Satisified)17 / US1- ULVLLUfMLIN I b I UKlvl1NA I LK MAINAGLMLIN I PLAIN, SHUWIING VVA I LK (1UAL1 I Y L1M115, SCALE 1"=30' L/ Impervious Areas within Limits of Disturbance Building 2, 900 sf ParkingAreas 18, 525 sf sT sT- ssT-sT- Sidewalks&Concrete 3,550 sf s - sT - s - - - _ =x=s J 24, 975 sf x-x- x-x-x-x-x- - - - c x - - - x -x - - _ X- - PROPOSED SANIT x -x- x _x -x-x _x x-x-x-x _x - i _ - s 9RY / 4"ET' SEWER EXTENSION TO THE DEVELOPMENT S -----------_- - 3 / T/ DISTURBED AREAS ASSOCIATED WITH OFFSITE SANITARY SEWER EXTENSION TO BE RETURNED TO THEIR PRE -DEVELOPMENT CONDITIONS AS- SHOWN. ADDITIONAL CONCENTRATED QuTFALLS SHALL NOT BE CREATED IN THESEtOCATIONS.ONS. s° p lld W 41 PROPOSED BOUNDARY FOR THE ESC LIMITS / = 0. OF DISTURBANCE ( 1.14 ac.) DEFINES THE / U W PROPOSED BOUNDARYFORTHEVRRM / i / WATER QUALITY REQUIREMENTS, TYP. / (n s iCOTT/ R. Ct?LLINSZ Lic. No. 035791,a 7/17/ 20 J Z O anZ U Z w O Z d Z d 0 Imaq N > J u - .- Z L Z Q c ^JN-) 1 L W N > O N W W N J z J Jf- Z< w LU W J LU W Cn L9 LLJOa J z ZO Q < W Lu U wC Q1 Ul w W O L0 Z L- wLLI z JW n LULL I 0 Q 0 U O O I I w w a U) JOB NO. 192036 SCALE 1 "= 30' SHEET NO. 7 SECTION A-9: TYPICAL GRAPMC.AL DETAILS BI y/` ` I 4' inn :' Out off trench-C below suitable oil or rock material L----------- TYPICAL HOMOGENEOUS EMBANKMENT Perforated oc FOUNDATION DRAIN Transition fill rRodl or grand Blanket drain BLANKET DRAIN ban Iona. grad «rat 41an Dew Rode or gravel Rat he w° drain 0 t0runsition filler I Transition filter CHIMNEY DRAIN TOE DRAIN Fisure A -la. Hontogeneow Embankments v/Seepage Controls EMBANKMENT NOTES: AFTER AN INVESTIGATION OF THE SITE's SOILS, SITE VISITS, AN ANALYSIS OF THE SURVEYED TOPOGRAPHY AND AN EXAMINATION OF VA DEQ APPENDIX A: EARTHEN EMBANKMENT, THE APPLICANT HAS PROVIDED A COMPREHENSIVE EMBANKMENT DESIGN THAT DOES NOT NEED A GEOTECHNICAL STUDY AT THIS TIME. SUCH 15 THE CASE DUE TO THE PRECAUTIONARY EMBANKMENT DESIGNS PROPOSED. A SUMMARY OF THE EMBANKMENT DESIGN REQUIREMENTS ARE LISTED BELOW, MANDATING THE CONTRACTOR MEET THESE REQUIREMENTS AT A MINIMUM. THE EMBANKMENTS SHALL HAVE A COMPACTED CLAY CORE WITH A CUTOFF TRENCH & BE IN ACCORDANCE WITH THE DETAILS SHOWN ON IN THIS PLAN, BERMS AND SPILLWAYS SHALL BE STABILIZED WITH EC-3 MATTING & THE REMAINING DISTURBED SLOPES SHALL BE STABILIZED WITH EC-2 MATTING. ALL BERM FILL MATERIAL SHALL CONSIST OF MIL, CL, SC OR GC SOILS & BE FREE OF WOOD, ROOTS, ROCKS OR ANY OTHER NON COMPACTING SOIL. COMPACTED FILL SHALL BE PROCTOR MAXIMUM DRY DENSITY ASTM D698 AND HAVE A MINIMUM OF 95% OF MAXIMUM DRY DENSITY AND 2%OF OPTIMUM MOISTURE CONTENT, ALL FILL MATERIAL AND CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS. r 1/2' zinc plated gook attached with 3/8' fastener s ® ®® 2-1/8' do, holes r 4 ®® 0) ll Isometric 1 4• HDPE late optionalP (P 1 _l '-. r,..a Pt r-1- x HBPE "l esrwith holes a t/4" O2-1/8" notes and I/% Plato rnmaPlastic 7 00Eolutlons, Gne Inc.Inorr equelOOO shown ¢nth oPnonal plate r':YS? n F HDPE six.eWrol Plasllc with C(`lion 2- t/B" holes and 1/4- Plate manufactured by Plastic Mali.. Inc. or a9 uel B/6' 4ia hole 0 0 o O 0 00 0 0 orifice SUP Elevation orifice PLASTIC DEBRIS CAGE SOLUTIONS PA. Be. 4U60 t1«ne9ttf VA2280, INC. 877-877- 5727 va, kn4c-IMu4scam Storrnllk"w ROUND SERIES TRASH RACK CONCRETE MANHOLE STANDARD 601NCH RACK SHOWN DIMENSIONS IN INCHES OR EQUIVALENT) PLAN SIDE VIEW StormRaXTM Round Series for Concrete Manhole Part No. DIM DIM use 11,11111111 M64)D RS24 17% 14% 22 24 30 Rt36 1131 14 40.1 36 43 164a 27 19 54 . 44 S7 a54a 27% isY4 66% M TO Plastic Solutions. Inc. cuBMMER f0 B. 4386. W1nd¢ata, VA 22604 23e Nicol a lid, WIFIj., VA 22e173 877) 877.5727 Pholr PROJECT SO 72L2219 hx htWA.PJas6asduevl.. LUTM9. 111441 r ISOMETRIC CONCRETE STRUCTURE DIMENSIONS INSIDE STRUCTURE DIMENSION OUTSIDE STRUCTURE DIMENSION AVAILABLE OPTIONS GROSS BRACING FOR OVF_RIMMICi HOPE ANTFVORTEX PLATE DATE D41WNL1Y AAPB SV: DETAIL UINUtKLDKUUINU Ut I L N I lUIN JYJ I tlYl A & Ut I tIN 1 lUIN LSAJIIN 'ISUt I All, SCALE 1"=20' PROPOSED'036" HDPE STANDPIPE ( STR. 200) WITH TRASHRACK TO SERV AS THE , RISER STRUCTURE. SEE DETAIL ON THIS SHEET, OkEQUIVALENT, FOR TRASHRACK. RISER RIM ELEV.=470. 65. RISER TO HAVE ON .25" LOW -FLOW ORIFICE INV.=469.00). RISER INV OUT=467.00 (TO EXISTING DI). TQPREVENT FLOTATION THE RISER BASE SHALL BE FIRMLY EMBEDDED 6" INTO AN 4JHICK REINFORCED CONCRETE FOUNDATION THAT IS VxG, AND BURIED BELOW GROUNDqq IIIIIIIIIIIIIIIIIIIIIIIIIIIII CONTRACTOR SHALL CONNECT I PROPOSED DETENTION BASIPRO OS 1. OUTFALL INTOEXISTINE - 1J +; s _ P sT_ THEFLOOROFDETENTION BASIN' B' SHALL BE SLOPED TO DRAINTOTHElRISER (o.5o%MIN.). CONTRACTOR SHALLINSTALLAGENTLYSLOPEDCHANNELATTHEBASIN's LOW POINTTOENSUREPOSITIVEDRAINAGETHROUGHOUT. 472 65' / Ui 1/ 200 3 472. 65' 47265' r \ RESTRICTIVE WEIR PLATE, ATLOW IV`/ i - POINT, TO DRAIN THE SYSTEM. SEE DETAIL ON THIS SHEET. 1' //' 4 o PROPOSED io' WIDE GRADEI)' S DEWALK WITH A 2% - MkXIMUM CROSS SLOPE TO SERVkAS TOP OF DAM. I W-W \ W- ( WI7 o SEE GENERAL SWM FACILITY NOTES # 2 & y ON THE PREVIOUS SHEET FOR DESIGN _ sT s OF OUTLET PROTECTION. OUTLET x PROTECTION TO EXTEND TO RISER TO - _ E RISK OF CLOGGING. REDUCETH S e i - JS -- s`--- e i i II VAR. I V PROPOSED tlVIDTHSWMESMT. J / v / i I 1PROPOSED LOWER 012P HP PUBLIC ROAD & SIDEWALK.A I STORM PIPE, WITH"VDOT STDI PRIVATE PARKIN6 AkEA &-SIDDEWALK EW-6, TO SERVE AS PRIMA§Y WITHINSWtw1 ES . TO -SE' AS UGD SYSTEM 'A' OUTFALL ES/ S TO SWIM FACILTFIES I 1 11 11 SEE TH)S SHEETFOR SCALED PROFILES50OF THE SWM FACILITIES, TYP. / --- \ PROPOSED UNDJ_F GROUND DETENTION STEM'A'TO 036" INV. ATTENUATE RUNOFF CAUSED 469.94 Al OM THIS DEVELOPMENT. M 7 00 ' • I l 8 I PROPOSED STRUCTURES z, y, 6&8SHALL BE . 6 - I I / °-.- 4 INSTALLED WITHSTAIRS & SHALL SERVE AS PROPOSED ELEVATED 015" HP STORM PIPE ACCESS FOR INSPECTION & MAINTENANCE, TYP. ,. o ALLOWS MORE SIGNIFICANT & LESS 0+61 STR. 4 SHALL HAVE A REBAR GRATE TRASHRACK 1 FREQUENT STORM EVENTS TO SAFELYBYPASSACROSSITSTHROAT's OPENING TO REDUCE THE UNDERGROUND DETENTION SYSTEM 'A' i IL - e 036" INV. 469. 46' RISK OF CLOGGING IN UGD SYSTEM A. 015" INV. 71.50' I I I I _ - sT- l .,T ,.,A_i \ V IlL L1.111..VLl U l U1L1Y1 A UNDERGROUND DETENTION SYSTEM GENERAL NOTES: FACILITY INSPECTIONS DURING CONSTRUCTION: 1. TRASHRACKS SHALL BE INSTALLED ON ALL ORIFICES, INCLUDING THOSE LOCATED ALONG THE WEIR PLATE WITHIN THE CONSTRUCTION INSPECTIONS ARE CRITICAL TO ENSURE THE UNDERGROUND DETENTION SYSTEM IS PROPERLY BUILT. BECAUSE THE TIMING OF THE INSTALLATION IS UNDERGROUND DETENTION SYSTEM, IN ACCORDANCE W/ THE DETAIL SHOWN ON ON THIS SHEET (OR EQUIVALENT). DICTATED BY THE CONTRACTOR, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER AND COUNTY INSPECTOR PRIOR TO INSTALLATION. 2. DETENTION SYSTEM's WEIR PLATE TO BE ARE -MANUFACTURED AND DELIVERED TO THE SITE. WEIR PLATE SHALL BE MULTIPLE SITE VISITS AND INSPECTIONSAREREQUIREDTOBESCHEDULEDBYTHECONTRACTOR, WITH THE ENGINEER AND COUNTY INSPECTOR, DURING THE FOLLOWING STAGES OF THE UNDERGROUND DETENTION SYSTEM CONSTRUCTION PROCESS: SECURELY AFFIXED TO THE INSIDE WALLS OF THE MANHOLE STRUCTURE. WEIR PLATE's MIDPOINT TO BE CENTERED ON THE MANHOLE, SPLITTING THE MH IN TWO TO OPTIMIZE AREA/ACCESS ON BOTH SIDES OF THE WEIR PLATE. i. PRE -CONSTRUCTION MEETING 3. ANY RETAINING WALLS AND FOUNDATIONS CONSTRUCTED IN THE VICINITY OF THE UNDERGROUND DETENTION SYSTEM z. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS) SHALL BE REVIEWED AND APPROVED BY THE ARCHITECT AND A GEOTECHNICAL ENGINEER. UNDER NO CIRCUMSTANCES 3. EXCAVATIONIGRADWHEN THE NG INTERADEI 15 READY PIP y. WHEN THE DETENTION PIPESUBGRADEISREADYFORPIPECONSTRUCTION, BUT BEFORE STONE BEDDING IS INSTALLED. SHALLANY PORTION OF THE UNDERGROUND DETENTION SYSTEM BE INSTALLED WITHIN THE PROPOSED BUILDING AND 5. AFTER STONE BEDDING IS PLACED AND COMPACTED, BUT PRIORTO PIPE INSTALLATION. PARKING STRUCTURES, OR ON AN ADJACENT PROPERTY. 6. ATTHE TIME OFTHE PIPE INSTALLATION. 4. PUBLIC SEMINOLE TRAIL RIGHT-OF-WAY & SIDEWALK, AND THE PRIVATE SIDEWALK& PARKING AREA LOCATED WITHIN 7. AFTER PIPE INSTALLATION, BUT PRIOR TO PLACING FILLOVER THE SYSTEM. THE SWM EASEMENT, SHALL SERVE AS ACCESS TO THE PROPOSED UNDERGROUND DETENTION SYSTEM. S. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) 5. CONTACT COLLINS ENGINEERING(434. 293.3719) REGARDING ANY QUESTIONS CONCERNING THE UNDERGROUND PLEASE ALSO SEE BELOW UNDER FACILITY MAINTENANCE FOR REQUIRED INSPECTIONS AFTER INSTALLATION IS COMPLETE. DETENTION SYSTEM. 6. ALL FILL EMBANKMENT MATERIAL SHALL CONSIST PREDOMINANTLY OF SOIL AND BE PLACED IN SUCCESSIVE UNIFORM FACILITY INSPECTIONS & MAINTENANCE AFTER CONSTRUCTION: LAYERS NOT MORE THAN 8 INCHES IN THICKNESS BEFORE COMPACTION OVER THE ENTIRE AREA IN ACCORDANCE WITH CURRENT VDOT ROAD AND BRIDGE SPECIFICATIONS OR THE FILL EMBANKMENT MATERIAL SHALL MEET THE PIPE THE FOLLOWING MAINTENANCE TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR FOLLOWING THE INSTALLATION OF THE UNDERGROUND MANUFACTURER'S SPECIFICATIONS OUTLINED BELOW IS MORE STRINGENT). DETENTION SYSTEM. WHICHEVER i FORTHEFIRSTYEAR FOLLOWING CONSTRUCTION, THE SITE SHALL BE INSPECTED BVTHE CONTRACTOR QUARTERLY AND AFTER STORM EVENTS THAT EXCEEDtIz 7. ALL FILL SHALL BE PLACED AT 95%COMFACTION AND TESTED BY A GEOTECH NICAL ENGINEER TO ENSURE COMPACTION INCH OF RAINFALL. IS REACHED AND MAINTAINED, OR THE FILL SHALL MEET THE PIPE MAN U FACTU RER's SPECIFICATIONS OUTLINED BELOW 2. THE CONTRACTOR SHALL LOOK FOR BARE OR ERODING AREAS IN THE CONTRIBUTING DRAINAGE AREAAND AROUND THE UNDERGROUND DETENTION SYSTEM AND WHICHEVER IS MORE STRINGENT). MAKE SURETHEYARE IMMEDIATELY STABILIZED. CONTRACTOR SHALL SPOT RESEEDAS NECESSARVAND ENSURE ADEQUATE SITE COVERAGE IS PROVIDEDWITHIN B. VDOTSTD.IS-1&ST-1 ARE REQUIRED ON ALL PROPOSED PUBLIC STRUCTURES AND THE UNDERGROUND DETENTION THE FIRSTYEAR. ATTHEQUARTERLY INSPECTIONS, AND AFTER EACH RAINFALL EVENTIN EXCESSOFi",THE CONTRACTOR SHALL PERFORM THE ANNUAL TOTEM'S JUNCTIONS. MAINTENANCE TASKS DESCRIBED BELOW IN #3. 9. PRIOR TO CONSTRUCTION THE CONTRACTOR SHALLTEST-DIG ATTHE EXISTING INLET & OUTFALL TO CONFIRM THE AFTER THE FIRST YEAR THE OWNER SHALL PERFORM FOLLOW-UP INSPECTIONS ANNUALLY AND AFTER EACH SIGNIFICANT RAINFALL EVENT: INVERTS AND TO ENSURE THE PROPOSED GRADES CAN BE ACHIEVED. CONTRACTOR SHALL CONTACT COLLINS 3. ASPRING MAINTENANCE INSPECTION AND CLEANUP SHALL BE CONDUCTED ANNUALLY. THE MAINTENANCE PROGRAM FOR THE UNDERGROUND DETENTION SYSTEM ENGINEERING OF ANY DISCREPANCIES IN THE HORIZONTAL VERTICAL ALIGNMENT PRIOR TO ORDERING AND SHALL NCLUDE & AND ENSURING THE Y OF WEIR ASH AND UTFALA INFLOW IN CONSTRUCTION. IN THE EVENT THE EXISTINGSTORMDROPINLETCANNOTBEPRESERVEDWITHTHEINSTALLATION OF STEMISH,DEBRIS THELLY SHALL DOIR SHALLIMMEDIATELYTHEENSUREATINGSIMENTNTENDEANDCLOGGEDDAMAGED.THP OWNER MEDIATKPIPES. THE OWNER SHASARY OUTLETTHE NEWOUTFALL, THE DI WILL NEED TO BE REPLACED. E JAL ATTENTION BEUEDCLEAN&REPAIR THE FACILITYASNECESSARYANDSHALLPAYSPECIALATTENTIONTOTHEINLETANDOUTLETLOCATIONS. THE ACCESS MANHOLES SHALL BE USED FOR INSPECTION AND SHALL TO THE ANDLOCATIONS. MANHOLES SHALLANDMAINTENANCE. 10.ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR CONSTRUCTION INDUSTRY . 29 CFR PART 1926 UNDERGROUND DETENTION SYSTEM MINIMUM TRENCH & BACKFILL REQUIREMENTS: 11.PENDING PRIOR APPROVAL BY COLLINS ENGINEERING, THE DRAINAGE PIPE MATERIALS MAY BE SUBSTITUTED. ALL 1. THE TRENCH CONTAINING THE SINGLE RUN OF 36" HP STORM PIPE (STR. 5) SHALL HAVE A 64" WIDE TRENCH DRAINAGE PIPE INSTALLATION PRACTICES SHALL BE IN ACCORDANCE WITH CURRENT VDOT STANDARDS AND WIDTH. THE TRENCH CONTAINING THE 36" HP STORM PIPE, THE 15" HP STORM PIPE BYPASS AND THE 12" HP REQUIREMENTS. CONTRACTOR SHALL ENSURE MINIMUM COVER REQUIREMENTS ARE MET WITH ANY PIPE STORM PIPE OUTFALL SHALL HAVE AN 112" WIDE TRENCH WIDTH. SUBSTITUTION. 2. CONTRACTOR SHALL WRAP THE EXCAVATED TRENCHES WITH A 6 OUNCE FILTER FABRIC CLOTH. A SUITABLE FOUNDATION SHALL BE BENEATH THE TRENCHES' FILTER FABRIC CLOTHS. 3. TRENCHES TO INCLUDE A 6" #57 STONE BED AT 95% COMPACTION BENEATH THE HP STORM PIPES. 4. TRENCHES SHALL BE BACKFILLED WITH #57 STONE AT 95°%COMPACTION AND SHALL EXTEND A MINIMUM OF 6" VERTICALLY ABOVE THE CROWN OF THE HP STORM PIPES. 5. THE TOP OF THE #57 STONE SHALL BE COVERED WITH A 6 OUNCE FILTER FABRIC CLOTH OVERLAPPING THE S PREVIOUSLY INSTALLED CLOTH THAT SURROUNDS THE BOTTOM AND SIDES OF THE TRENCHES. N NIp 2 NIb 6. SUITABLE FILL REACHING THE FINISHED GRADESSHALLBEAPPLIEDABOVETHETOPLAYER'S FILTER CLOTH, I- O O MEETING MINIMUM PIPE MANUFACTURER'S REQUIREMENTS TO PREVENT FLOATATION AND ENSURE PIPE O n O O O 0 F- INTEGRITY IS MAINTAINED. j 00 0007. A MINIMUM COVER OF 12" IS REQUIRED ABOVE THE CROWN OF THE HP STORM PIPES. O 00 u. I- 8. SEETHE'HPSTORM TRENCH INSTALLATIONDETAIL' ON THIS SHEET FOR ADDITIONAL UNDERGROUND DU rn O O DETENTION SYSTEM PIPE REQUIREMENTS. 0) I . w rn rn STR: 2 MODIFIED o o (n o C) VDOT MH-1 J oN O IF, n STA. 0+61.62 71 m In • » z z 00 Uf z z o TP=474.00 to r- INV IN: 469.25 TO 41 r I- Q II a- zzzz JAI \ / n I I T. A C ( T 'I C Tn n l) U) - - - - Z Z Z PROPOSED AC FOR INSPECTI PROPOSED LOWER 012" HP STO EW-6 ( OUTFALL INVE UNDERGROUND DETENTION SYS 100-yr PEAK DESIGN WSE 10-yr PEAK DESIGN WSE 2-yr PEAK DESIGN WSE 1-yr PEAK DESIGN WSE PROPOSED 036" HDPE STANDPIPE (STR. 2 TRASHRACK TO SERVE AS THE RISER STRUCTURE. SE ON THIS SHEET, OR EQUIVALENT, FOR TRASHRACK. R ELEV.=470.65. RISER TO HAVE ONE 1.25" LOW-FLOM INV: 469.00). RISER INV OUT=467. 00 (TO EXISTIN PREVENT FLOTATION THE RISER BASE SHALL 131 EMBEDDED 6" INTO AN 28" THICK REINFORCED CC FOUNDATION THAT IS GxU, AND BURIED BELOW C STR:EX 1 STR EXISTII STA. 0+ I TP=4 INV IN: 466.19 TC NV IN: 466.34 (TO REI NV IN: 466.09 (TO REI 12" MI COVE OVE UGD i LESS MH w/ STAIRS SYSTE TYP. ON & MAINTENANCE. XISTIN 480 GRADE 480 tM PIPE WITH VDOT STD. RT=469. 00) TO SERVE AS FEM ' A' PRIMARY OUTFALL ROPOSED GR DE 475 475 470.87 l O ERFLO 470.77 470.67 To BYPASS, TSTR. 8 470.63 0) WITH PROPC E DETAIL 470 A DOWN SERVE A ISER RIM SYSTEM ORIFICE SLOPES 3 DI). TO 0- 51 73cHPFIRMLYNCRETEC-k STORM ROUND. 36" HPSTORM PIPE 75.10 Li ® 0., v1 DI) 4 5 42. 35 LF ® 0.50% 4651 JG DI RESTRICTIVE WEIR PLATE AT LOW POINT, INV.=469 0.00 DRAIN THE SYSTEM. SEE DETAIL ON THIS SHEET. 71.69 12" HP STORM PIPE, 8. 23 LF ® 1.827. 1 200 SEE GENERAL SWM FACILITY NOTES #2 & 4 ON THE PREVIOUS SH AAINRAIN) 12" HP STORM PIPE, 34.71 LF ® 2.33% 460 460 J LLI LIDN J LLI LLI 0) O 00 ItcoU10IItWLi0+50 1+00 1+ 50 2+ 00 WEIR PLATE DETAIL SCALE:1"=5' 2 84' SIMULATION OF PIPE OUTFALL OVERFLOW WEIR IS HYDRAULICALLY IMMEDIATELY UPLAND OF EQUIVALENTTO AN ORIFICE WITH AN WEIR PLATE WITHIN MH APPROX. DIAMETER OF 09.86" ELEV.=472. 25' TOP OF PIPE INSTALL TRASH RACKS ON ALL / ELEV.=472. 2r ORIFICES, TYP. SEE THIS SHEET o FOR DETAIL, OR EQUIVALENT. ELEV.=469.25' BOTTOM OF PIPE) - MANUFACTURE/INSTALL(2)ONE 02" EINFORCED 22 GA. STEEL WEIR PLATE, LOW - FLOW ORIFICE IN THE WEIRPLATE OR EQUIVALENT MATERIAL STRENGTH. ATTHE LOW POINT OF THE DETENTION SEE' UNDERGROUND DETENTION SYSTEM SYSTEM (INVERT ELEVATION 469.25'). GENERAL NOTE,# 2 ON THIS SHEET. SEE GENERAL SWM FACILITY NOTE #y ON THE PREVIOUS SHEET. r STR:8 MODIFIED VDOT MH-1 STA. 0+54.80 TP=474.79 INV IN: 470.55 TO 4 INV OUT: 470.45 TO 15" HP STORM PIPE 47.54 LF ® 3.05% D SERIES OF 36" HP STORM PIPES WITH STREAM RESTRICTIVE WEIR PLATE TO S PROPOSED UNDERGROUND DETENTION 470 A'. 30" HP STORM PIPES TO HAVE 0.50% NITH A TOTAL LENGTH OF 117.5' PIPE SEE GENERAL SWM FACILITY NOTES 50% # 2 & y ON THE PREVIOUS SHEET FOR DESIGN OF OUTLET PROTECTION. 465 N 25'. TO JET FOR DESIGN OF OUTLET PROTECTION. UGD SYSTEM AND DETENTION BASIN N 60 GRADE DETENTION BASIN'B' CONSTRUCTION NOTES: TH 0 F FACILITY PLANTING SPECIFICATIONS: 1. THE DETENTIONBASIN SHALL HAVE A TURF GROUND COVER, SUCH AS GRASS OR SOME OTHER FORM OF A VEGETATIVE GROUNDCOVER. LANDSCAPING BEYOND THIS IS OPTIONAL AND IS NOT RE UIRED. Q Q 2. THE PROPOSED INTERIOR SIDESLOPES OF THE BASIN SHALL BE A MAXIMUM OF 3:1 TO REDUCE THE RISK OF EROSION. THE PROPOSED FLOOR SLOPES SHALL BE GRADED TO PROVIDE H SCOTT R. LLINS LI POSITIVE DRAINAGE ATALLTIMESTOTHE RISER STRUCTURE. 3. WOODY VEGETATION SHALL NOT BE PLANTED OR ALLOWED TO GROW WITHIN 15 FEET OF THE TOE OF THE EMBANKMENT NOR WITHIN 25 FEET OF THE PRINCIPAL SPILLWAY Li Lie. No. 035791,a STRUCTURE. e0 7 17 20 4' rV 4. THE SOILS IN THE STORMWATERBUFFERAREAAREOFTENSEVERELYCOMPACTEDDURINGTHECONSTRUCTIONPROCESS, TO ENSURE STABILITY THE DENSIN OF THESE COMPACTED 2 0 SOILS CAN BE SO GREAT THATIT EFFECTIVELY PREVENTS ROOT PENETRATION AND THEREFORE MAY LEAD TO PREMATURE MORTALITY OR LOSS OF VIGOR. AS A RULE OF THUMB SSIONAL PLANTING HOLES SHOULD BE THREE TIMES DEEPERANDWIDERTHANTHEDIAMETEROFTHEROOTBALLFORBALL -AND -BURLAP STOCK, AND FIVE TIMES DEEPER AND WIDER FOR V, CONTAINER -GROWN STOCK. 5. EXTRA MULCHING AROUND THE BASE OF TREES AND SHRUBS IS STRONGLY RECOMMENDED AS A MEANS OF CONSERVING MOISTURE AND SUPPRESSING WEEDS. CONTRACTOR REQUIREMENTS: 1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LAYOUT OF ALL WORK COVERED UNDER THESE PLANS. 2. LANDSCAPE CONTRACTOR SHALL REFER TO THE STANDARDIZED LANDSCAPE SPECIFICATIONS FOR THE STATE OF VIRGINIA FOR ADDITIONAL INFORMATION. THE CONTRACTOR SHALL ABIDE BY ITS CONTENTS; HOWEVER ANY NOTES OR SPECIFICATIONS ON THE PLANS SHALL SUPERSEDE THOSE OUTLINED IN THE SPECIFICATIONS MANUAL ( COPIES ARE AVAILABLE FOR A FEE FROM THE VIRGINIA CHAPTER OF THE AMERICAN SOCIETY OF LANDSCAPE ARCHITECTS VIRGINIA NURSERYMEN'S ASSOCIATION INC. AND THE VIRGINIA SOCIETY OF LANDSCAPE DESIGNERS). ALL DISCREPANCIES SHALL BE BROUGHT TO THE ATTENTION OF COLLINS ENGINEERING PRIOR TO THE CORRESPONDING CONSTRUCTION ACTIVITY. 3. ALL PLANT MATERIAL SHALL MEETTHE MINIMUM SPECIFICATIONS AND STANDARDS DESCRIBED IN THE CURRENT ISSUE OF THE AMERICAN STANDARD FOR NURSERY STOCK PUBLISHED BY THE AMERICAN ASSOCIATION OF NURSERYMEN, 1250 STREET, NW, SUITE 500, WASHINGTON, DC 20005. 4. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS IN THE FIELD AND NOTIFY THE DESIGNER OF ANY VARIANCE FROM THE PLAN. 5. THE LANDSCAPE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE LOCATION OF ANY ONSITE UTILITIES (CALL MISS UTILITY 1-800-552-7001 BEFORE ANY EXCAVATION). 6. REFER TO THE APPROVED FINAL SITE PLANS FOR ANY DETAILED SITE INFORMATION. 7. ALL WORK SHALL BE COORDINATED WITH OTHER PARTIES. 8. PLANTS WILL BE PREPARED FOR SHIPMENT IN A MANNER THAT WILL NOT CAUSE DAMAGE TO THE BARK, BUDS, BRANCHES, STEMS, OR OVERALL SHAPE OF THE STOCK. CONTAINER GROWN PLANTS WILL BE TRANSPORTED IN THE CONTAINERS IN WHICH THEY HAVE GROWN. Q 9. ALL PLANT MATERIAL, UNLESS OTHERWISE SPECIFIED, SHALL BE UNIFORMLY BRANCHED AND HAVE A VIGOROUS ROOT SYSTEM. PLANT MATERIAL SHALL BE HEALTHY, VIGOROUS, AND z O FREE FROM DEFECTS, DECAY, DISEASES, INSECTPEST EGGS, AND ALL FORMS OF INFESTATION. ALL PLANT MATERIAL SHALL BE FRESH, FREE FROM TRANSPLANT SHOCK OR VISIBLE f WILT. PLANTS DEEMED UNHEALTHY WILL BE REJECTED. a on j 10. ALL CONTAINER STOCK SHALL HAVEBEEN PROPAGATED IN A CONTAINER LONG ENOUGH FOR THE ROOT SYSTEM TO HAVE DEVELOPED SUFFICIENTLY TO HOLD ITS SOIL. CONTAINER V) 12 U) STOCK WITH POORLY DEVELOPED ROOT SYSTEMS WILL NOT BE ACCEPTED. Z U 5 11. PLANTS NOT INSTALLED ON THE DAYOFARRIVALONSITESHALLBESTOREDANDPROTECTEDBYTHECONTAINER. OUTSIDE STORAGE AREAS WILL BE SHADED AND PROTECTED FROM THE WIND AND SUN. PLANTS STORED ON SITE SHALL BE PROTECTED FROM ANY DRYING AT ALL TIMES BY COVERING THE BALLS OR ROOTS WITH MOIST SAWDUST, WET BURLAP, UU WOOD CHIPS, SHREDDED BARK, PEAT MOSS, OR OTHER SIMILAR MULCHING MATERIAL. O O M: 12. THE OWNER RESERVES THE RIGHT TO SUBSTITUTE PLANT MATERIAL TYPE, SIZE AND/OR QUANTITY. ANY SUBSTITUTIONS MUST BE APPROVED BY THE INSPECTOR INITIALLY, AND THENIM,q 5 THE DESIGNER. 13. MINOR FIELD ADJUSTMENTS MAYBENECESSARYDUE TO SITE CONDITIONS (EX: ROOTBALL AND UTILITY CONFLICT). MAJOR ADJUSTMENTS MUST BE APPROVED BY THE DESIGNER. I`IA UU 14. NO PLANTING SHALL OCCUR WHEN THE SOIL IS FROZEN. 15. PLANT MATERIAL SHALL BE PLACED IN EXISTING SOIL WITH EACH PLANTING PIT EXCAVATED TO A SIZE SUFFICIENT TO CONTAIN THE ENTIRE ROOT BALL OR ROOT MASS, WITHOUT CRAMPING ROOTSTOCK. 16. THE CONTRACTOR SHALL MAINTAIN A ONE ( 1) CALENDAR YEAR 90% CARE AND REPLACEMENT WARRANTY FOR ALL PLANTINGS. THE PERIOD OF CARE AND REPLACEMENT SHALL BEGIN AFTER INSPECTION AND APPROVAL OF THE COMPLETE INSTALLATION OF ALL PLANTS AND CONTINUE FOR ONE CALENDAR YEAR. W 17. THE CONTRACTOR IS RESPONSIBLE FOR REMOVAL AND DISPOSAL OF TRASH AND DEBRIS WITHIN THE LIMITS OF THE PLANTING ON A DAILY BASIS. 18. THE CONTRACTOR WILL NOT BE RESPONSIBLE FOR PLANT MATERIALTHAT HAS BEEN DAMAGED BY VANDALISM, FIRE, OR OTHER ACTIVITIES BEYOND THE CONTRACTOR's CONTROL. lie FACILITY CONSTRUCTION 1. THE DETENTION BASIN MAY SERVE AS A SEDIMENT BASIN AND/OR TRAP DURING PROJECT CONSTRUCTION. IF THIS IS DONE THE VOLUME SHALL BE BASED ON THE MORE STRINGENT SIZING RULE (EROSION AND SEDIMENT CONTROL REQUIREMENTS VS. STORMWATER TREATMENT REQUIREMENTS). INSTALLATION OF THE PERMANENT RISER SHALL BE INITIATED DURING THE CONSTRUCTION PHASE, AND DESIGN ELEVATIONS SHALL BE SET WITH FINAL CLEANOUT OF THE SEDIMENT BASIN AND CONVERSION TO THE POST -CONSTRUCTION FACILITY IN MIND. APPROPRIATE PROCEDURES SHALL BE IMPLEMENTED TO PREVENT DISCHARGE OF TURBULENT WATERS WHEN THE BASIN 15 BEING CONVERTED TO AN DETENTION BASIN. 2. THE DETENTION BASIN SHALL ONLY BE CONSTRUCTED AFTER THE CONTRIBUTING DRAINAGE AREA TO THE FACILITY IS COMPLETELY STABILIZED. IF THE SITE OF THE PROPOSED SWM FACILITY WILL BE USED AS A SEDIMENT TRAP OR BASIN DURING THE CONSTRUCTION PHASE, THEN THE FACILITY WILL BE DEWATERED, DREDGED AND RE -GRADED TO DESIGN DIMENSIONS AFTER THE ORIGINAL SITE CONSTRUCTION IS COMPLETE. MODIFICATIONS SHALL BE MADE TO THE RISER, ORIFICES AND BARRELS AS REQUIRED SO THAT THEY ARE CONSISTENT WITH THE FINAL CONSTRUCTION SPECIFICATIONS. 3. THE CONTRACTOR SHALL ASSEMBLE CONSTRUCTION MATERIALS ON -SITE, MAKING SURE THEY MEET DESIGN SPECIFICATIONS AND ARE PREPARED AT STAGING AREAS WHEN POSSIBLE. rr1I 4. THE CONTRACTOR SHALL CLEAR AND STRIP THE PROJECT AREA IF REQUIRED TO THE DESIRED SUB -GRADE. F` 5. INSTALL E&5 CONTROLS PRIOR TO CONSTRUCTION OF THE BASIN, INCLUDING TEMPORARY DE -WATERING DEVICES AND STORMWATER DIVERSION PRACTICES. ALL AREAS SURROUNDING THE BASIN THAT ARE GRADED OR DENUDED DURING CONSTRUCTION SHALL BE PLANTED WITH TURF GRASS, NATIVE PLANTINGS, OR OTHER APPROVED METHODS OF n SOIL STABILIZATION. 6. CONTRACTOR SHALL EXCAVATE THE CORE TRENCH AND INSTALLTHE SPILLWAY PIPE DURING THE ESC PHASE. 7. CONTRACTOR SHALL ALSO INSTALL THE RISER, OUTFLOW STRUCTURE AND/OR THE BARREL(s) WITH PERMANENT COLLARS DURING THE ESC PHASE TO ENSURE THE TOP INVERT OF THE OVERFLOW WEIR IS CONSTRUCTED LEVEL AT THE DESIGN ELEVATION. S. THE CONTRACTOR SHALL CONSTRUCT -THE EMBANKMENT AND ANY INTERNAL BERMS IN 8-TO 12-INCH LIFTS, COMPACTION SHALL BE COMPLETED IN LIFTS WITH APPROPRIATE EQUIPMENT. THE CONTRACTOR SHALL ALSO ADHERE TO THE CLAY LINER SPECIFICATIONS OUTLINED IN TABLE 14.4 BELOW: Table i'li clay Liner Sla" ficarions Property Test Method Unit Specification Permeability ASTM D-2434 Cm/sec 1 X 10 Plasticity Index of Gay ASTM D423/424 Not less than 15 Liquid Limit of Clay ASTM D-2216 Not less than 30 Clay Particles Passing, ASTM D-A -_ Not less than 30 GUY C Fit coon ASTM - , - - V 95% Df standard Drodu den Source: Virginia StoTn "er ManagBrnent HandbOdl (1999) 9. UPON COMPLETION OF THE EMBANKMENT GRADING, THE CONTRACTOR SHALL EXCAVATE/GRADE UNTIL THE APPROPRIATE ELEVATION AND DESIRED CONTOURS ARE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES OF THE BASIN. 10. CONTRACTOR SHALL THEN CONSTRUCTTHE EMERGENCY SPILLWAY IN CUT OR STRUCTURALLY STABILIZED SOILS. 11. THE CONTRACTOR SHALL THEN FINISH CONSTRUCTION OF ALL OUTLET STRUCTURES INCLUDING DOWNSTREAM RIP -RAP APRON PROTECTION. 12. THE CONTRACTOR SHALL NEXT STABILIZE EXPOSED SOILS BY HYDROSEEDING OR SEEDING OVER STRAW. 13. THE CONTRACTOR SHALL THEN INSTALL THE APPROPRIATE BASIN LANDSCAPING IN ACCORDANCE WITH THE APPROVED PLANS. FACILITY MAINTENANCE: MAINTENANCE OF THE DETENTION BASIN IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE FACILITIES. DURING THESE INSPECTIONS THE FOLLOWING TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR FOLLOWING INSTALLATION AND THE OWNER THEREAFTER: 1. MEASURE SEDIMENT ACCUMULATION LEVELS IN THE BASIN. 2. MONITOR THE GROWTH OF THE GROUNDCOVER AND ANY TREES AND SHRUBS PLANTED AS APPLICABLE. RECORD THE SPECIES AND THEIR APPROXIMATE COVERAGE AND NOTE THE PRESENCE OF ANY INVASIVE PLANT SPECIES, AS APPLICABLE. 3. INSPECT THE CONDITION OF STORMWATER INLETS TO THE BASIN FOR MATERIAL DAMAGE, EROSION OR UNDERCUTTING. 4. INSPECT THE BANKS OF UPSTREAM AND DOWNSTREAM CHANNELS IF APPLICABLE FOR EVIDENCE OF SLOUGHING ANIMAL BURROWS BOGGY AREAS WOODY GROWTH OR GULLY EROSION THAT MAY UNDERMINE EMBANKMENT INTEGRITY. 5. INSPECT BASIN OUTFALL CHANNEL IF APPLICABLE FOR EROSION UNDERCUTTING RIP -RAP DISPLACEMENT WOODY GROWTH etc. 6. INSPECT CONDITION OF PRINCIPAL SPILLWAY AND RISER FOR EVIDENCE OF SPALLING, JOINT FAILURE, LEAKAGE, CORROSION OR OTHER FAILURES. 7. INSPECT CONDITION OF ALLTRASH RACKS REVERSE SLOPED PIPES OR FLASHBOARD RISERS FOR EVIDENCE OF CLOGGING LEAKAGE DEBRIS ACCUMULATION OR OTHER FAILURES. 8. INSPECT MAINTENANCE ACCESS TO ENSURE IT IS FREE OF WOODY VEGETATION AND CHECK TO SEE WHETHER VALVES MANHOLES AND LOCKS CAN BE OPENED AND OPERATED. 9. INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE BASIN FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR SLUMPING. 10. OWNER OR CONTRACTOR SHALL MAKE NEEDED REPAIRS IMMEDIATELY. FACILITY INSPECTION: MULTIPLE INSPECTIONS ARE CRITICALTO ENSURE THE BASIN( s)ARE PROPERLY CONSTRUCTED. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY THE CONTRACTOR, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER AND INSPECTOR PRIOR TO INSTALLATION. MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE CONTRACTOR WITH THE ENGINEER AND INSPECTOR DURING THE FOLLOWING STAGES OF THE DETENTION BASIN's CONSTRUCTION PROCESS: 1. PRE -CONSTRUCTION MEETING 2. INITIALSITE PREPARATION INCLUDING INSTALLATION OF PROJECT E&S CONTROLS 3. EXCAVATION/GRADING (e.g., INTERIM/FINAL ELEVATIONS) 4. DETENTION BASIN INSTALLATION (e.g., INTERIM AND FINAL ELEVATIONS) 5. INSTALLATION OF THE EMBANKMENT, THE RISER/ PRIMARY SPILLWAY, AND THE OUTLET STRUCTURE(s). 6. PLANTING PHASE (WITH AN EXPERIENCED LANDSCAPE ARCHITECT PRESENT/DIRECTING IF APPLICABLE) 7. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE) 4751 STR:4 MODIFIED VDOT DI-313, L=6' 7 STA. 1 + 03.97 TP=475. 20 INV IN: 469.56 TO 6 INV IN: 471.56 TO 102 470 INV OUT: 469.46 TO 2 NV OUT: 471.50 TO 8 36" HP STORM PIPES, PART OF UNDERGROUND DETENTION SYSTEM 'A' 15 HP STORM PIPE 5.83 LF ® 1 EMERGENCY OVERFLOW/ BYPASS) PROPOSED ELEVATED 015" HP STORM PIPES ALLOW MORE SIGNIFICANT & LESS FREQUENT STORM EVENTS TOSAFELYBYPASS UNDERGROUND DETENTION SYSTEM 'A' 4601 J J O It LLI LLI 3) 00 t 0 I It W PROFILE SCALES: 1"=5' ( V) 1"=50'( H) 0+50 0+75 BYPASS TABLE 1, RECOMMENDED MINIMUM TRENCH WIDTHS HP STORM TRENCH INSTALLATION DETAIL 11 MIN. COVEk TO MIN. COVER TO RIGID PAVEMENT, H FLEXIBLE PAVEMENT, H FINAL BACKFILL 1. SPRINGLINE -- ---- INITIAL BACKFILL HAUNCH BEDDING 4" FOR 12"- 24" PIPET FOR 30"- BO"PIPE MIN TRENCH WIDTH. SUITABLE NOTES: ISEE TABLE) 1 FOUNDATION 1. ALL PIPE SYSTEMS SHALL BE INSTALLED IN ACCORDANCE WITH ASTM D2321, "STANDARD PRACTICE FOR UNDERGROUND INSTALLATION OF THERMOPLASTIC PIPE FOR SEWERS AND OTHER GRAVITY FLOW APPLICATIONS', LATEST ADDITION, WITH THE EXCEPTION THATTHE INITIAL BACKFILL MAY EXTEND TOTHE CROWN OFTHE PIPE. SOIL CLASSIFICATIONS ARE PER THE LATEST VERSION OF ASTM D2321. CLASS IVB MATERIALS (MH, CH) AS DEFINED IN PREVIOUS VERSIONS OF ASTM D2321 PRE NOT APPROPRIATE BACKFILL MATERIALS. 2. MEASURES SHOULD BE TAKEN TO PREVENT MIGRATION OF NATIVE FINES INTO BACI(FIM MATERIAL, WHEN REQUIRED. 3. FOUNDATION: WHERE THE TRENCH BOTTOM IS UNSTABLE THE CONTRACTOR SHALL EXCAVATE TO A DEPTH REQUIRED BY THE ENGINEER AND REPLACE WITH SUITABLE MATERIAL AS SPECIFIED BY THE ENGINEER. AS AN ALTERNATIVE AND AT THE DISCRETION OF THE DESIGN ENGINEER, THE TRENCH BOTTOM MAY BE STABILIZED USING A GEOTEXTILE MATERIAL. 4. BEDDING: SUITABLE MATERIAL SHALL BE CLASS 1. II III OR IV. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR MATERIAL SPECIFICATION TO ENGINEER. COMPACTION SHALL BE SPECIFIED BY THE ENGINEER IN ACCORDANCE WITH TABLE 3 FOR THE APPLICABLE FILL HEIGHTS LISTED. UNLESS OTHERWISE NOTED BY THE ENGINEER, MINIMUM BEDDING THICKNESS SHALL BE 4" (100mm) FOR 1T-24' ( 300mm-600mm) DIAMETER PIPE: 6• (150mm) FOR 30'60" (750mm1500mm) DIAMETER PIPE. THE MIDDLE V3 BENEATH THE PIPE INVERT SHALL BE LOOSELY PLACED. PLEASE NOTE, CLASS IV MATERIAL HAS LIMITED APPLICATION AND CAN BE DIFFICULT TO PLACE AND COMPACT; USE ONLY WITH THE APPROVAL OF A SOIL EXPERT. INITIAL BACKFILL: SUITABLE MATERIAL SHALL BE CLASS I, II, III, OR IV IN THE PIPE ZONE EXTENDING TO THE CROWN OF THE PIPE. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR MATERIAL SPECIFICATION TO ENGINEER. MATERIAL SHALL BE INSTAL -LED AS REQUIRED IN ASTM D2U1, LATEST EDITION. COMPACTION SHALL BE SPECIFIED BY THE ENGINEER IN ACCORDANCE WITH TABLE 3 FOR THE APPUCABLE FILL HEIGHTS LISTED. PLEASE NOTE, CLASS IV MATERIAL HAS LIMITED APPLICATION AND CAN BE DIFFICULT TO PLACE AND COMPACT: USE ONLY WITH THE APPROVAL OF A SOIL EXPERT. 6. MINIMUM COVER: MINIMUM COVER. H. IN NON - TRAFFIC APPLICATIONS (GRASS OR LANDSCAPE AREAS) IS 12• (300nm) FROM THE TOP OF PIPE TO GROUND SURFACE. ADDITIONAL COVER MAY BE REQUIRED TO PREVENT FLOTATION. FORTRAFFIC PIPE DIAM. MIN. TRENCH WIDTH 1r 3D" 300mm 762mm 1Y 34" 375mm864mm it 3w 450mm 991mm 600mm 1219mm 30" 6T 750mm 1422mm 36" 64" 900mm 1626mm 4T 72" 1050mos 1829mm 40" 80" 12W 20 810 38" By 1500mm 2438mm TABLE 2, MINIMUM RECOMMENDED COVERBASED ON VIEH ING CONDITIONS SURFACE LIVE LOADING CONDITION HEAVYCONSTRUCTION PIPE DIM. H- 25 75T AXLE LOAD)' 12"- 48' 1r M.300mm- l"Les, 305mm 12 saw z4" 60' 60' 1500mm 610mm 1524mm TABLE 3. MAXIMUM COVERFOR ADS HP STORM PIPE. 8 CLASSI CLASS II CLASS III CLASS V PIPEDIA COMPACTED 95% 90% 0% 95% 90% 95% 1r 41 28 21 16 20 16 16 300..) 12.Sm) 8.5m) B.A.) 4. 9m) 6.1m) 4.9m) 4.9m) is- 42 29 21 16 21 16 16 375mm) 128m) 13AM) B.4m) 4.9m) 6. 4m) 4.9m) 4.9m) 1r 44 30 21 16 22 17 16 450mm) 13.4m) 9.1m) B.A.) 4. 9m) 6.7m) 5.2m) 4.9m) 24" 37 26 18 14 19 14 14 600mm 11.3m 9m P ) 5.5m 4. 3m 5.8m 4.3m 4.3m 1 ) 30^ 38 11 750mm) 11.9m) 28. 2m) 8 5. Bm) 4.3m) 35.8m) 64.Bm) 4.3m) 3T 28 20 141014 11 10 900onm) I (8.5m) 6.1m) 4.3m) 30m) 4.3m) SAID) 3.0m) 42" 30 21 14 10 15 11 10 1050mm) 9.1m) BA.) 4.3m) 3.0m) 4.6m) 3Am) 3.Om) 4W 29 20 14 9 14 10 10 1200mm) 8.8m) 6.1m) 4.3m) 2. 7m) 4.3m) 3.0m) 3.Om) 6P 29 20 14 9 14 10 9 1500mm) B.") 8.1m) a.3m) 27m) 4. 3m) 3.Do 2.7m) FILL HEIGHT TABLE GENERATED USING AASHTO SECTION 12. LOAD APPLICATIONS; CLASS I OR II MATERIAL COMPACTED TO 0% SPO AND CLASS III COMPACTED TO 95% SPD IS REQUIRED. RESISTANCE FACTOR DESIGN(LRFD) PROCEDURE WITH THE FOLLOWING FOR TRAFFIC APPLICATIONS, MINIMUM COVER, H, IS 12"( 30UTm)UP TO 4T(1200mm) DIAMETER PIPE AND 24^(BOOInm) OF ASSUMPTIONS: COVER FOR W(I500mm)DIAMETER PIPE, MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT NO HYDROSTATIC PRESSURE OR TO TOP OF RIGID PAVEMENT. UNIT WEIGHT OF SOIL (YB) =120 PCF 7. FOR ADDITIONAL INFORMATION SEE TECHNICAL NOTE 2. 04. 1 a REV MAwuuM COVER nElr+ms RNa ovum om, .., REV. DESCRIPTIM BY MMNOM' CHK'D ADVANCED DRAINAGE SYSTEMS, INC. FAI S") HAS PREPAAEDTHIS DETAIL BASED ON INFORMATION PRONDEDTOADS. THIS DRAWING IS JAB INTENDED TO DE%CT THE CO ARONENTS AS REQUESTED. AGE HAS NOT PERFORMED ANY ENGINEEPING ORDESIGN SERNCES FOR THIS R N N I/ MNCH MSTAJATION 01/RN9 PROJECT, OR HAS ADS INDEPENDENTLY VERIFIED THE INFORMATIONSUPPLIED. THEINSTALLATIONCETAILSPROWDEDHEREINAREGENERK nTTTTTTe BLVO RECOMMENDATIONS AND ME NOT SPECIRC FOR THIS PROJECT. THE DESIGN ENGINEER SHALL REMEWTHESE DETAILS FRORTO D, , 81aRY 13MUF HILLLARO OHIOAL: MS CONSTRUCTION. ITISTHE DESIGNENGINEERSRESPCNSIBILITYTOENWRETHE DETAILS PRONDEDHEREIN METEOR EXCEEDSTHE AFPIUCABLE NATIONAL, STATE, OR LOCAL REQUIREMENTS AND TO ENSURE THAT THE DETAILS PROVIDED HEREIN PRE ACCEPTABLE FOR THIS ABLOIRUEMNI vxrs vsnvr:¢r¢R,auc DRAWING NUMBER: ST0. 101D PRnIECT. I.F1 V ' zN O-) c\IN-) 01 WC' d oO-) WN N Q L- i J J 0 i CnW Z 0LL/ Q WU zD Cn W LLI z Q j LL 0- V ) W J J Q II W V) W z cW G W r_ O Q DC z G M c/ U W 1 Q 0 MW p W 0 ( ) z W W J V) II W w o- U) JOB NO. 192036 SCALE AS SHOWN SHEET NO. 8