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HomeMy WebLinkAboutWPO201500020 Bond 2022-08-31CHARLOTTESVILLE SELF STORAGE AT CROZET a 3 0 nos y Os o % oIle e ASBUILT STORMWATER MANAGMENT PLAN FOR WPO 201500020 GENERAL NOTES: OWNER: IMP 056AJ-00-00-00700 ALBEMARLE STORAGE, LLC P.O. BOX 332 CHARLOTTESVILLE, VA 22902 ENGINEER: COLLINS ENGINEERING 800 EAST JEFFERSON STREET CHARLOTTESVILLE, VA 22902 (434)293-3719 (PHONE) (434)245-DOJO (FAX) CONTACT MR. SCOTT COLLINS TAX PARCEL #. IMP 056AJ-00-00-00700 ZONING. LIGHT INDUSTRIAL TOTAL ACREAGE.- 6.18 AC TOTAL PROPOSED DISTURBANCE. • 1.71 ACRES PROPOSED USE.- PUBLIC STORAGE UNITS AREAS: AREA OF BLDG. 73,700 SF (27.3% OF THE SITE) AREA OF PAVEMENT 96,000 SF (35.67 OF THE SITE) AREA OF OPEN SPACE.• 99,600 SF (37.1% OF THE SITE) BOUNDARY AND TOPOGRAPHY. ROUDABUSH AND GALE, DUNE, 2004 TOPOGRAPHY.- SITE AND TOPOGRAPHY FIELD VERIFIED BY COLLINS ENGINEERING IN MARCH, 2015. USGS DATUM: NAD83 SETBACKS BUILDING: 50' FROM PUBLIC R/W OR RURAL AREA PARKING: 10' FROM PUBLIC R/W JO' FROM RURAL ZONED LAND BUILDING HEIGHTS 13' FOR STORAGE BUILDINGS & 26' FOR OFFICE BUILDING PARKING PROPOSED SELF STORAGE UNITS * NO PARKING IS REQUIRED FOR THE STORAGE UNITS. PROPOSED OFFICE FOR SELF STORAGE UNITS * 1,200 SQ. FT. GROSS ® 80% = 960 SQ. FT. NET 960 SQ. FT. NET ® 1 SPACE/200 SQ. FT. = 5 SPACES REQUIRED * 1,200 SQ. FT. RESIDENT MANAGER APARTMENT = 2 SPACES REQUIRED TOTAL PARKING REQUIRED FOR THIS SITE 7 PARKING SPACES REQUIRED 7 PARKING SPACES PROVIDED (INCLUDES 1 STD. H.C. SPACE) CONTRACTOR SHALL VERIFY LOCAT70N AND ELEVA77ON OF ALL UNDERGROUND U77LIT7ES SHOWN ON PLANS IN AREAS OF CONSTRUCTION PRIOR TO STAR77NG WORK. CONTACT ENGINEER IMMEDIATELY IF LOCA77ON OR ELEVA77ON IS DIFFERENT FROM THAT SHOWN ON THE PLANS, IF THERE APPEARS TO BE A CONFLICT, AND UPON DISCOVERY OF ANY U77LITY NOT SHOWN ON 774E PLANS. EROSION &c SEDIMENT CONTROL MEASURES. - STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN ACCORDANCE WITH THE WRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. STRUCTURAL PRAC7CES USED IN THIS SEC77ON CONSIST OF THE FOLLOWING: 3.01 SAFETY FENCE., A PR07EC77VE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY VIRTUE OF P07EN77AL ACCESS BY 774E PUBLIC. 3.02 CONSTRUCT70N ENTRANCE.- A STABILIZED PAVED CONSTRUCTION ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION SITE. TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONSMUC77ON ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE AMOUNT SEDIMENT 7RANSPORTED ONTO PUBLIC ROADWAYS. 3.05 SILT FENCE.• A TEMPORARY SEDIMENT BARRIER CONSIS77NG OF A SYNTHETIC FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPOR77NG POSTS AND ENTRENCHED, TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERA77ONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE AND TO DECREASE 774E VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE WRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). 3.07 STORM DRAIN INLET PROTECTION: A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET. TO PREVENT SEDIMENT FROM ENTERING STORM DRAINAGE SYSTEMS PRIOR TO PERMANENT STABILIZA77ON OF THE DISTURBED AREA. INLET PR07EC770N APPLIES WHERE STORM DRAIN INLETS ARE TO BE MADE OPERA77ONAL BEFORE PERMANENT STABILIZA77ON OF THE CORRESPONDING DISTURBED DRAINAGE AREA. 3.09 TEMPORARY DIVERSION DIKE: A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA. TO DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPROTECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET. TO DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE WHEREVER STORMWATER RUNOFF MUST BE TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON S17E DURING CONS7RUC770N. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 MONTHS OR LESS, WHICH CAN BE PROLONGED WITH PROPER MAINTENANCE. 3.13 TEMPORARY SEDIMENT TRAP: A TEMPORARY PONDING AREA FORMED BY CONSMUC77NG AN EARTHEN EMBANKMENT WITH A STONE OUTLET TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS LONG ENOUGH TO ALLOW THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. USE BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBU77NG DRAINAGE AREA IS LESS THAN 3 ACRES, WHERE THE SEDIMENT TRAP WILL BE USED NO LONGER THAN 18 MONTHS, AND IT MAY BE CONSTRUCTED EITHER INDEPENDENTLY OR IN CONJUNCTION WITH A TEMPORARY DIVERSION DIKE. 3.14 TEMPORARY SEDIMENT BASIN.• A TEMPORARY BARRIER OR DAM WN7-1 A CONTROLLED STORMWATER RELEASE STRUCTURE FORMED BY CONSTRUC77NG AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. TO DETAIL SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS IN "WET' AND `DRY" STORAGE LONG ENOUGH FOR THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. APPLIES BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBU77NG DRAINAGE AREA IS EQUAL TO OR GREATER THAN THREE ACRES. THERE MUST BE SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY FOR THE CONSTRUCTION OF A TEMPORARY IMPOUNDMENT. J. 18 OUTLET PROTECTION.' STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPA77NG DEVICES PLACED AT THE OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS. TO PREVENT SCOUR AT STORMWATER OUTLETS, TO PROTECT THE OUTLET STRUCTURE, AND TO MINIMIZE THE POTEN77AL FOR DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED STORMWATER FLOWS. APPLICABLE TO THE OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL SECTIONS. J. 19 RIPRAP: A PERMANENT, EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WI774 FILTER FABRIC OR GRANULAR UNDERLINING. TO PROTECT THE SOIL FROM THE EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW THE VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING THE POTEN77AL FOR INFILTRATION, AND TO STABILIZE SLOPES WITH SEEPAGE PROBLEMS, AND/OR NON -COHESIVE SOILS. USE WHEREVER SOIL AND WATER INTERFACE AND THE SOIL COND177ONS WATER 77JRBULENCE AND VELOCITY, EXPECTED VEGETATIVE COVER, ETC., ARE SUCH THAT THE SOIL MAY ERODE UNDER THE DESIGN FLOW CONDITIONS. 3.31 TEMPORARY SEEDING. - THE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DISTURBED AREAS BY SEEDING WI7H APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PR07EC77ON TO BARE SOILS EXPOSED DURING CONSTRUC7TON UN77L PERMANENT VEGETA77ON OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 3.32 PERMANENT STABILIZATION: THE ESTABLISHMENT OF PERENNIAL VEGETA7VE COVER ON DISTURBED AREAS BY PLANTING SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DIS77JRBED AREAS. TO PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT IS ECONOMICAL ADAPTABLE TO S17E CONDITIONS AND ALLOWS SELECT70N OF THE MOST APPROPRIATE PLANT MATERIALS TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION AC7VITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETA7VE COVER. 3.35 MULCHING APPLICATION OF PLANT RESIDUES OR 07HER SUITABLE MATERIALS TO THE SOIL SURFACE. TO PREVENT EROSION BY PR07ECTING THE SOIL SURFACE FROM RAINDROP IMPACT AND REDUCING THE VELOCITY OF OVERLAND FLOW. TO FOSTER THE GROWTH OF VEGETA77ON BY INCREASING AVAILABLE MOISTURE AND PROVIDING INSULA77ON AGAINST EXTREME HEAT AND COLD. AREAS WHICH HAVE BEEN PERMANENTLY SEEDED SHOULD BE MULCHED IMMEDIATELY FOLLOWING SEEDING. AREAS WHICH CANNOT BE SEEDED BECAUSE OF THE SEASON SHOULD BE MULCHED USING ORGANIC MULCH. MULCH MAY BE USED TOGETHER WITH PLANTINGS OF TREES, SHRUBS, OR CERTAIN GROUND COVERS WHICH DO NOT PROVIDE ADEQUATE SOIL STABILIZATION BY THEMSELVES, CAN BE USED IN CON✓UNC77ON WITH TEMPORARY SEEDING. 3.36 SOIL STABILIZATION BLANKETS & MATING: THE INSTALLATION OF A PROTEC77VE COVERING (BLANKET) OR A SOIL STABILIZATION MAT ON A PREPARED PLAN77NG AREA OF A STEEP SLOPE, CHANNEL OR SHORELINE. TO AID IN CONTROLLING EROSION ON CRI77CAL AREAS BY PROVIDING A MICROCLIMATE WHICH PR07ECTS YOUNG VEGETA77ON AND PROM07ES ITS ESTABLISHMENT. APPLIES ON SHORT, STEEP SLOPES WHERE EROSION HAZARD IS HIGH AND PLAN77NG IS LIKELY TO BE TOO SLOW IN PROVIDING ADEQUATE PR07ECTIVE COVER. 3.38 TREE PRESERVATION AND PROTECTION: PROTEC7ON OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION AC77WTY. TO ENSURE THE SURVIVAL OF DESIRABLE TREES WHERE THEY WKL BE EFFEC7VE FOR EROSION AND SEDIMENT CONTROL, WATERSHED PROTECTION, LANDSCAPE BEAU77FICA77ON, DUST AND POLLU77ON CONTROL, NOISE REDUCTION, SHADE AND 07HER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES. APPLIES IN TREE -INHABITED AREAS SUBJECT TO LAND DISTURBING AC7WTIES. 3.39 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND CONSTRUCTION AC70TIES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE VESCH. -648� PGR9'J "P 650 R \\ \\ 6pti // p p 6S / 6�/ I` \ N -bob, \ / j650 MB o / LS OS \ _ O, TV00 644 / u � 644 i 668�\ s. \ 6q8 \ �665 G99 / % - • �� � I �� � JJJ � �_ _ss2 6654 � r A s oti / <9 �66.8 � s i o 1 i qo / :: iHREcr NGT ROADWA�� 0 i i SHEET LAYOUT SCALE: 1" = 100' TEMPORARY SEEDING.• ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETAT70N IMMEDIATELY FOLLOWING GRADING. SELECTION OF THE SEED MIXTURE WKL DEPEND ON THE TIME OF YEAR AND WKL BE APPLIED TO DISTURBED ARES THAT WKL NOT BE BROUGHT TO FINAL GRADE WITHIN 30 DAYS. PLANTS SHOULD BE SELECTED APPROPRIATE TO THE SEASON AND SITE COND177ONS FROM TABLES 331E AND 331C. NOTE THAT TABLE 331B PRESENTS PLANTS WHICH CAN BE USED WITHOUT EXTENSIVE EVALUAT70N OF SITE CONDITIONS; TABLE 331C PRESENTS MORE IN-DEPTH INFORMAT70N ON THE PLANT MATERIALS TO CONTROL EROSION ON BARE SOIL SURFACES, PLANTS MUST BE ABLE TO GERMINATE AND GROW. SEEDBED PREPARA77ON IS ESSENTIAL. AN EVALUAT70N SHOULD BE CONDUCTED TO DETERMINE IF LIME IS NECESSARY FOR TEMPORARY SEEDING. TABLE 331A MAY BE USED TO DETERMINE THE ACTUAL NEED ALONG WITH SUGGESTED APPLICATION RATES: FER77LIZER SHALL BE APPLIED AS 600 LBS/ACRE OF 10-20-10 (14 LBS/1,000 SQ. FT) OR EQUIVALENT NUTRIENTS. LIME AND FER77LIZER SHALL BE INCORPORATED INTO THE TOP 2 TO 4 INCHES OF THE SOIL IF POSSIBLE. IF THE AREA HAS BEEN RECENTLY LOOSENED OR DISTURBED, NO FURTHER ROUGHENING IS REQUIRED. WHEN THE AREA IS COMPACTED, CRUSTED, OR HARDENED, THE SOIL SHALL BE LOOSENED BY DISCING, RAKING, HARROWING, OR OTHER ACCEPTABLE MEANS. TRACKING WITH BULLDOZER CLEATS IS MOST EFFECTIVE ON SANDY SOILS. THIS PRACTICE OFTEN CAUSES UNDUE COMPACT70N OF THE SOIL SURFACE, ESPECIALLY IN CLAYEY SOILS, AND DOES NOT AID PLANT GROWTH AS EFFECTIVELY AS OTHER METHODS OF SURFACE ROUGHENING. SEED SHALL BE EVENLY APPLIED WITH A BROADCAST SEEDER, DRILL, CULTIPACKER SEEDER OR HYDROSEEDER. SMALL GRAINS SHALL BE PLANTED NO MORE THAN 1 j INCHES DEEP. SMALL SEEDS, SUCH AS KENTUCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN 4 INCH DEEP. OTHER GRASSES AND LEGUMES SHOULD BE PLANTED FROM 4 INCH TO T2 DEEP. SEEDINGS MADE IN FALL FOR WINTER COVER AND DURING HOT AND DRY SUMMER MONTHS SHALL BE MULCHED ACCORDING TO MULCHING, STD. & SPEC. 335, EXCEPT THAT HYDROMULCHES (FIBER MULCH) WILL NOT BE CONSIDERED ADEQUATE. STRAW MULCH SHOULD BE USED DURING THESE PERIODS. AREAS WHICH FAIL TO ESTABLISH VEGETATIVE COVER ADEQUATE TO PREVENT RILL EROSION WILL BE RE -SEEDED AS SOON AS SUCH AREAS ARE IDENTIFIED. MAINTENANCE. - IN GENERAL, DURING CONSTRUCTION THE RLD OR CONTRACTOR ON -SITE WILL CHECK ALL EROSION AND SEDIMENT CONTROL MEASURES DAILY AND AFTER EACH SIGNIFICANT RAINFALL. MONITORING REPORTS WILL BE REQUIRED FROM THE RLD IF NEEDED. SPECIFIC ATTEN77ON WKL BE GIVEN TO THE FOLLOWING ITEMS o. SEDIMENT BASINS & TRAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE WI7H THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. b.ALL INLET PROTECTION AND GRAVEL OUTLETS WKL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT WILL PREVENT PROPER DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT THE GRAVEL WKL BE REMOVED AND CLEANED, OR IT KILL BE REPLACED. c. ALL SILT FENCE BARRIERS WKL BE CHECKED REGULARLY FOR UNDERMINING OR DETERIORA77ON OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOS177ON REACHED HALF WAY TO THE TOP OF THE BARRIER. d.ALL SEEDED AREAS WKL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FER77LIZED AND RESEEDED AS NEEDED. IN CASE OF EMERGENCY, THE PRIMARY CONTACT FOR THE PROJECT WILL BE THE RLD OR CONTRACTOR ON -SITE THE CONTRACTOR WILL BE DETERMINED AT THE TIME THE CONTRACT IS AWARDED. IN ADDITION THE OWNER MAY BE CONTACTED, MR. ALAN TAYLOR. UPON COMPLETION OF THE PROJECT, THE OWNER WILL BE RESPONSIBLE FOR SITE MAINTENANCE. SHEET INDEX TITLE SHEET TITLE SHEET 1 4 STORMWATER MANAGEMENT PLAN STORMWATER MANAGEMENT DETAILS 4A TOTAL SHEETS: 5 EROSION CONTROL NOTES PROJECT S1 TE m of a K'eyland or ,n cm:n vim ' t1 sae: vi:v 1 vl ri :vdo rs = Three Notch'd Rd. b RezGurant NY Schml House or p r C T+bor sr � 3 L6Qht:" ^+mle sr Oaudius pozet Fmk star, Hill y Brewery VICINITY MAP SCALE: 1" = 1,000' Three Notch'd Rd ES-1: UNLESS OTHERWISE INDICATED ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WKL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE ORGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND ORGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-CONSTRUCT70N CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING AC770TY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. ES-J.-ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. ES-5.-PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS INCLUDING BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTA77ON AS DETERMINED BY THE PLAN APPROVING AUTHORITY. ES-7.-ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL 77MES DURING LAND DISTURBING ACTIW77ES AND DURING SITE DEVELOPMENT UN77L FINAL STABILIZAT70N IS ACHIEVED. ES-8:DURING DEWA7ERING OPERA7ONS, 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. EROSION CONTROL NOTES Bright N Beginnings, i `urtw� 0 1. THE PLAN APPROVING AUTHORITY MUST BE N077FIED ONE WEEK PRIOR TO THE PRE-CONSTRUCT70N CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICA77ONS OF THE WRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND WRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. J. ALL EROSION AND SEDIMENT CON7ROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SI7F AT ALL 77MES. 5. PRIOR TO COMMENCING LAND DISTURBING AC771477ES IN AREAS 07HER THAN INDICATED ON THESE PLANS INCLUDING BUT NOT LIMI7ED TO OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY 774E PLAN APPROVING AUTHORITY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADD177ONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTA77ON AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL 77MES DURING LAND DISTURBING ACTIVITIES AND DURING S17E DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. 8. DURING DEWATERING OPERATIONS, WATER WLL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFEC7VENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND 07HER DEBRIS. 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SEC77ON 5.1.28. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SEC77ON 13-301 OF THE CODE OF ALBEMARLE. 14. BORROW, FILL OR WASTE AC770TY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF TOOAM TO 9:OOPM. 15. BORROW, FILL OR WASTE AC770TY SHALL BE CONDUCTED IN A SAFE MANNER THAN MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE 0 SLIDES, SINKING, OR COLLAPSE. 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACIL177ES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER POR77ON OF THE PROPERTY. 17. TEMPORARY STABILIZA77ON SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ ACRE AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS/10OSF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 9OLBS/1000SF, INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FER77LIZER SHALL BE APPLIED AT 1000LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 180LBS/ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0-5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 8OLBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR IMMEDIATELY. SILT ]RAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE COLLEC77NG SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED IMMEDIATELY. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED 1417HIN 30 DAYS OF FINAL S17E STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. 21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WITHIN 1 YEAR OF THE DATE OF APPROVAL. (WATER PR07EC77ON ORDINANCE SEC77ON 17-204G.) 22. PERMANENT VEGETA77ON SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE (9) MONTHS AFTER THE DATE THE LAND DISTURBING AC770TY COMMENCED. (WATER PR07EC77ON ORDINANCE SECTION 17-207B) DESCRIPTION OF EROSION do SEDIMENT CONTROL MEASURES: EROSION AND SEDIMENT CONTROL MEASURES: IT IS ANT7CIPATED THAT A CONSTRUCT70N ENTRANCE, CONSTRUC7ON ROAD STABILIZATION, TEMPORARY DIVERSIONS, TEMPORARY SEDIMENT TRAPS, OUTLET PROTECTION, INLET PROTECTION, AND SILT FENCE WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE ACTIVITIES. TEMPORARY STOCKPILE AREAS WILL BE MAINTAINED FROM TOPSOIL THAT WKL BE STRIPPED FROM AREAS TO BE GRADED AND STORED FOR LATER SPREADING. STOCKPILE LOCAT70NS SHALL BE ON SITE AND SHALL BE STABILIZED WITH A TEMPORARY VEGETA7VE COVER. PERMANENT SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE EXCAVATED AND WHERE CONSTRUCT70N ACTIVITIES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE. SELECTION OF SEED MIXTURE WILL DEPEND ON THE 77ME OF YEAR APPLIED. TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE THAN SEVEN DAYS. THESE AREAS SHALL BE SEEDED WITH FAST GERMINATING VEGETA77ON IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECT70N OF SEED MIXTURE WILL DEPEND ON THE 77ME OF YEAR APPLIED. 3.01 SAFETY FENCE - CONSTRUCT70N SAFETY FENCE WILL BE INSTALLED AROUND THE DISTURBED AREA AS SHOWN TO SEPARATE THE CONSTRUCTION UTILITY WORK FROM THE EXISTING COMMUNITY AND OCCUPIED UNITS. 302 CONSTRUCTION ENTRANCE - ONE CONSTRUCT70N ENTRANCE SHALL BE INSTALLED AS SHOWN ON THE PLANS. THIS WILL BE THE ONLY POINT OF INGRESS AND EGRESS TO THE PROJECT AREA. CARE WILL BE TAKEN TO PROTECT ADJACENT ROADWAYS AND PROPERTIES FROM TRANSFER OF SEDIMENT 3.05 SILT FENCE- SILT FENCE WILL BE PLACED ON THE DOWNSTREAM SIDE OF DISTURBANCE AND ENCOMPASS THE PROPOSED DISTURBED AREAS FOR THE BUILDINGS AND IMPROVEMENTS. 307 STORM DRAIN INLET PROTECT70N- IP WILL BE INSTALLED ON EACH PROPOSED INLET AS SHOWN ON THE PLANS. 309 TEMPORARY DIVERSION DIKE- DIVERSION DIKES WILL BE USED AS NECESSARY TO CONTROL THE RUN-OFF AND DIRECT RUNOFF TO ON -SITE SEDIMENT CONTROL FACILITIES 3.13 TEMPORARY SEDIMENT TRAP- TEMPORARY SEDIMENT TRAPS WILL BE INSTALLED WHERE SHOWN ON THE PLANS. 3.18 OUTLET PROTECTION- TO BE PROVIDED AT THE OUTFALL OF DRAINAGE PIPES WHERE SHOWN ON PLANS. J. 19 RIPRAP- RIPRAP SHALL BE INSTALLED AS OUTLET PROTECTION WHERE SHOWN ON THE PLANS. 331 TEMPORARY SEEDING- TEMPORARY SEEDING SHALL BE APPLIED WHERE SHOWN ON THE PLANS. 3.32 PERMANENT SEEDING- PERMANENTLY SEEDING SHALL BE APPLIED WHERE SHOWN ON THE PLANS. 3.35 MULCHING - MULCHING SHALL BE APPLIED TO ANY SEEDED AREA AS DEEMED NECESSARY FOR STABILIZAT70N AND GROWTH. 3.36 SOIL STABILIZA77ON BLANKETS AND MAT77NG- B/M SHALL BE EMPLOYED WHEREVER SHOWN ON THE PLANS OR WHERE SLOPES EXCEED 3.•1 SLOPE. 338 TREE PRESERVAT70N AND PROTECTION- TREE PRESERVATION FENCING SHALL BE INSTALLED WHERE SHOWN ON THE PLANS NO TREES SHALL BE HARMED OUTSIDE OF THE LIMITS OF TREE PROTECTION FENCING. 3.39 DUST CONTROL- DUST CONTROL SHALL BE APPLIED THROUGHOUT THE SITE WHERE SHOWN ON THE PLANS. STORMWATER MANAGEMENT.• STORMWATER RUNOFF QUANTITY WILL BE TREATED ON -SITE THROUGH THE USE OF THE EXISTING SWM FACILITY - BIO-FILTER. SEE STORMWATER MANAGEMENT PLAN SHEETS. Lie. No. 035791 8/15/22 ID z r, W w � Z Q w H a Q W oLn �Ln z Lu Lu a U W O Q w O ZLn W w ce w O Z Q O � u O O V Z w cc O Yyl a Ln J m Z ca W <�a a w m c ko ko N w ^ 00 Ln r o C -i H m 00 Lu W W z ul z r ti M M N M N O N N Lu J _J Lu 0 Q U Lij Y F- Lu LJJ elf U) F- Lu cIf elf O O N Q CJ G J I -I m Lu 1 N U a Lu CD 0 J Lu Lu I -I Lu r_ 0 LL U w J w H O w x a Ln JOB NO. 122076 SCALE AS SHOWN SHEET NO. 1 11 /BEAVER'CR�E-K HILL CORPORATION \I 1 \ \\ i I I \- cpz /TMP (�5600-09!00-06/b0 \ \ \ 1 J / / I \ \ \ Ln � 6S \ / / / / // // \ / /ZF0�1EDj��RURAL A��A > I � Ln �o I �,\\ o co / / / I - - - - - /o///�D /(O /cb/ /b�/ / / 0 // / / / / / PROPERTY (ITVP) / ' _ 656 � /// / / /----- //(0 /✓ / / 10 / / xx x _ �x x xx ' // /� / / / / ZPAR // // /// --- -- ----- _ J-- / x / C0 / / / _ ✓ - _ _ o o�o O-o-o-o-o-o-o-o-o-o=o-o-o-o=o-o-o-o-o o= �___� / / 30' N B DIS URB B FFERI B SETBACK /---------------------- - / i--� -- /- / / C0 / l rT / r 7' -� / \t EXISTING ASPHALT o�X -f -�/--_ -- \ A�3�-11 I / ` / / EX. INLET 3-1 DRIVEWAYS \0 / / / / / / `U� / / / - / ��6NEp: LIGHT I IAL Ex. INLET 3-z _ / / _ 59'_B IL�DING/SETBACK / I \. /l7/-�-o BUILDING SETBACK- - _ �- ------- Q // / //� / �15" STORM �15" STORM °� °o / o~ N � GROUND FLOOR Z FFE=sas.00 FIN. FL. 1 FIRST FLOOR ELEV. = 657.00 ''LL / /\ SEESHEET yA FOR I FFE= 657.00 APAGOycD?IPRAPUPLAN OF PIP/UNDERGROUND TOP OF ROOF TOP OF ROOF NA44U AL ONVE / D TENTION SYSTEM �`5,�/ ?l d / X �I ELEV. = 669.00 ELEV. 669.00 /PR9PO ED OUrF ED F'yOF/ / / I 1 LENGTHS QVPJ. /P/RQQPO5 D DOT STD. EWa w/YYDOT#j I PROPOSED CQPARSE GREGATE( x74Vxz D)w/ I G¢OT XTILE IIfrERFABRI UNDER YAM T I I I I I PROPOSED STORAGE STORAGE r Q / / T EPROPOS DOUTF.LL&THE I I BUILDING G BUILDING R T \/APPRO7RIPRAP,JJ//IICHANIJEL I I 60'x200 50'X200' STR. 2&4 SHALL BE USED / FOR ACCESS, INSPECTION & MAINTENANCE. SEE 1Z� SHEET yA FOR STIR. S WEIR RI9.I/IIA/GE .I \ p PLATE DETAIL. l,E5MT. I I I / l I I v l�% /1 I l \/ POST-DEV. DA'A' / PRP�AP CHANNEL DA=1.71 aC. / / / \ c= gzhi \I Tc o.io hrs. / / / EROSION ItONTROL FACILITY TO'BEFILLED I GROUND FLOOR FIN. FL. 15 PROPOSED INVERTED FFE=646.00 ELEV. = 658.00 y' CROWN SHALL BUSREDAS FIRST FLOOR TOP OF ROOF II, SHALLBEUSEDAS THE _ / /APP ODIT / // / I I DETENTION SYACCESSTSTEM. EM. TOP OF 658.00 ROOF ELEV 670 00 / RIPRP/ DITCH / // / / / / I 1 I ELEV. = 670.00 PRE-DEV. DA'A' / N sca�c / / / / / O �o DA=i.7a at. 3 0 �=6.�4 CJF Q i= 9/5�CF / I / / Io`" I I T Q` Tc o. ohrs. V � B.18 FHS V;d= .11 / / / I I 0 b °°o � // // / \ o +\\ Lo TORMWATE 6 SO\ FACILI YNT 6 ° I \ I� 1 I °� // t 662 �. j/ / i `664 TMP 056A3-00- 0- 0-9p0 \ / ZONED -'IGHT INDUS L\ \ v / // I IN,/ �b Ss D z 0.52 F/r d,Bod F* / I / EXISTING STORAGE / / EXISTING ASPHALT BUI ING B / DRIVEWAYS / A \ \ / S ROI11TE 401 LLC I / /� A - - - --- - --- - _ .= = El �',P P - _ --- - t 056 3-8S 0-p0-Op10 \ I I IZ� D: Il l l \ sAN PROPERTY LIMITS EIGHTY INDUSTIA Ogg �.x 9 \ k /XISTING STO AGE / o A % v \ v � MH W/L 8 -w/L v� BUILDING H, \ \ I \ V A \ 1 I I \ \ \ \ \ 1 I I Q0 / I / / / / �/ ROUTE 240 LLC ,66 \ \ cN / / ✓ TMP 056A2-01-00-05800 \ \ N, IN, CO ZONED: LIGHT INDUSTRIAL /^ \ \ \ \ \ \\ \\ 1 I cq c0 o ��� ��9-- 1 I 1 I ��Noo l l Q/ 00� \ \ / / / / -ROUTE 240 LLC AMP 056A-00-00-0060 ° / ZONED: LIGHT INDUS-TRIAL STORMWATER MANAGEMENT NARRATIVE �P o a �\ THE PROJECT SITE IS WITHIN THE BEAVER CREEK RESERVOIR WATERSHED. STORMWATER MANAGEMENT WILL BE PROVIDED ONSITE IN ACCORDANCE WITH ALL FEDERAL, STATE AND LOCAL REQUIREMENTS. SURFACE RUNOFF WITHIN THE PROJECT SITE IS I (� IN DIRECTED TO TWO DRAINAGE WAYS (UNNAMED TRIBUTARIES TO BEAVER CREEK).- �/ DRAINAGE SHED A IS COMPRISED OF APPROXIMATELY 1.71 ACRES ONSITE AND SURFACE DRAINAGE IS DIRECTED NORTH TO THE NATURAL DRAINAGE WAY ALONG THE NORTHERN PROPERTY LINE, AND THEN EAST OFFSITE. THE EXISTING CONDITIONS IN SHED A I CONSIST OF AN EXISTING PARKING LOT THAT WILL BE REDEVELOPED WITH A NEW SELF STORAGE FACILITY WITH TRAVEL WAYS. THERE WILL BE NO INCREASE IN IMPERVIOUS AREA WITHIN DRAINAGE SHED A, i'RE)VIBEB. STORMWATER MANAGEMENT QUALITY CONTROLS (BMP) IN ACCORDANCE WITH ALBEMARLE COUNTY REQUIREMENTS F S/j l I T l l Pp I FOR DRINKING WATER WATERSHEDS WILL BE PROVIDED BY A Pin RENTENTION FAGI ITv PURCHASING PHOSPHOROUS REMOVAL CREDITS FOR THE AREA LOCATED TO THE NORTH OF NEW STORAGE BUILDING G. \ REQUIRED im 0.591bs/oyr OF PoHOSPHOROUS REMOVAL MOVAL CREDIT IS / l //� •5`%M / / l o �� ///l I ) NEEDED TO BE PURCHASED TO MEET THE MINIMUM REQUIREMENTS. / / / // J Poor WIDEMn A194 Poor I nMc EQUIPPED WITu A vo-PnnT r_o ncc on m ¢Poo cTPiP THE CONCENTRATED FLOW FROM THE CLOSED CONDUIT STORM DRAIN SYSTEM WITHIN SHED A IS DIRECTED INTO A VDOT CLASS I DRY RIP -RAP APRON PRIORTom^, // // �� BIC) FILTER MIX ORTESTED APPROVED EQUAL WITI I T-1 IE UNDERDRAINAND P.I. WITH 12" HPIDE . TI IE BIO RETENTIeN BELOW a AREA WILL BE EG�IJIPPED WITI 1 VEGETATIVE PLANTINGS IN AGGGRIDANGE WITI I WR 14. TI IE 12 ING' I I WIDE 310 F16TER OUTFALL IS IN, NON-EROSIVE PRIOR TO DISCHARGE INTO THE NATURAL DRAINAGE WAYS. ATE ENERGY AND RENDER OUTFACE VELOCITIES ��, I / - \ \ v �\77 DRAINAGE SHED B IS COMPRISED OF 7.09 ACRES, OF WHICH 3.66 ACRES ARE ONSITE, AND 3.43 ACRES ARE OFFSITE. THE EXISTING PARKINGCONDITIONS IN SHED B CONSIST OF AN EXISTING NEW SELF STORAGE BUILDINGS, ALONG WITH TRAVEL WAYS AND PARKING AREAS. APPROXIMATELY 0.40 ACRES OF ADDITIONAL I / / / / - - \- \ / �.. Q IMPERVIOUS SURFACE WILL BE GENERATED IN SHED B. SURFACE RUNOFF IN SHED B WILL BE DIRECTED TO A BISECTING NATURAL / ! / / DRAINAGE WAY THAT COLLECTS AND CONVEYS SURFACE RUNOFF SOUTHEAST AND EVENTUALLY OFFSITE. ACOMBINATION SURFACE FACILITY WILL PROVIDE BOTH WATER QUALITY CONTROL AND EXTENDED DETENTION. STORAGE FOR WATER QUANTITY / / / 4 / WILL BE PROVIDED TO ATTENUATE THE 2-YEAR AND 10-YEAR POST -DEVELOPMENT EVENTS. UTILIZING THE MODIFIED DIRECT METHOD, THE ALLOWABLE RELEASE RATE FOR THE POST -DEVELOPED 2-YEAR STORM IS 21.8 CPS, AND 28.5 CPS FOR THE 10-YEAR STORM. ROUTED RELEASE RATES WERE 8.33 CPS FOR THE 2-YEAR STORM AND 14.19 CPS FOR THE 10-YEAR STORM. EXTENDED DETENTION VOLUME WILL BE PROVIDED FOR TWICE THE WATER QUALITY VOLUME, AS DETERMINED BY CAPTURING THE FIRSTY. INCH OF POST -DEVELOPED IMPERVIOUS SURFACE IN DRAINAGE SHED B. THE FACILITY IS DESIGNED WITH A MULTI -STAGE OUTFALL 1 STRUCTURE CONTAINING A 3' NOTCHED WEIR TO CONTROL THE 2-YEAR STORM EVENT. THE FACILITY OUTFALL WILL BE PROVIDED BY DISSIPATING ENERGY AND RENDERING THE OUTFALL VELOCITY NON -EROSIVE PRIOR TO ENTERING THE NATURAL DRAINAGE WAY. DRAINAGE SHED C IS COMPRISED OF 0.50 ACRES ONSITE. THE EXISTING SURFACE CONDITIONS CONSIST OF AN ASPHALT DRIVEWAY AND OPEN SPACE. THIS AREA WILL BE REDEVELOPED WITH TRAVEL WAYS, PARKING LOTS, NEW SELF -STORAGE BUILDINGS AND AN \ OFFICE THAT INCORPORATES AN EMPLOYEE RESIDENTIAL APARTMENT. THIS AREA DRAINS BY OVERLAND SHEET FLOW TO THE ANALYSIS POINT (AT THE FACILITY B OUTFALL). DRAINAGE SHED D IS COMPRISED OF 2.64 ACRES ONSITE. THIS AREA CONSISTS OF UNDEVELOPED OPEN SPACE AND WILL REMAIN / UNDEVELOPED OPEN SPACE. DRAINAGE OCCURS VIA OVERLAND SHEET FLOW TO ANALYSIS POINT B (DOWNSTREAM OF THE SWM/BMP DETENTION FACILITY). \ NATURAL DRAINAGE SHEDS HAVE BEEN HONORED WITH THIS PLAN AND OUTFALLS HAVE BEEN RENDERED ADEQUATE AND IN ` i / / / / \� Q COMPLIANCE WITH MS-19. IN SHED A THERE IS NO INCREASE IN RUNOFF AND WATER QUALITY CONTROL HAS BEEN PROVIDED IN A O MANNER WHICH P"'�P^f MEETS THE REQUIREMENTS FOR DRINKING WATER WATERSHEDS. IN SHED B, WATER QUANTITY GRAPHIC SCALE CONTROL HAS BEEN PROVI D E D TO ATTENUATE POST DEVELOPMENT RUNOFF RATES TO THAT LESS THAN THE PRE -DEVELOPED RATE, AND WATER QUALITY CONTROL HAS BEEN PROVIDED IN A MANNER WHICH EXCEEDS THE REQUIREMENT FOR DRINKING /// / WATER WATERSHEDS. / / 40 0 20 40 80 160 \ THIS PROJECT (CHARLOTTESVILLE SELF STORAGE AT CROZET) IS IN COMPLIANCE WITH MS-19 IN THAT STORMWATER MANAGEMENT (SWM) QUANITY CONTROL HAS BEEN PROVIDED ONSITE, WHICH ATTENUATES THE POST -DEVELOPED 2-YEAR AND 10-YEAR IN FEET ) SURFACE RUNOFF RATE TO THAT BELOW THE PRE DEVELOPED 2 YEAR AND 10 YEAR SURFACE RUNOFF GENERATED BY THE SITE / O IN \ F 1 inch = 40 ft. / Z FA Y� Pre -Development Groundcover (Prior to Approved WWA construction Data from WWA approved plans) I mpervous Existing Areas 1.51ac. Pervious(Remaining)Areas 0.20 ac. Total = 1.71 ac. Post-uevelopment t3ounacover rsreaKaown Impervious Existing Buildings 5,895 sf Impervious Existing Parking 9,455sf Impervious Proposed Buildings 22,000 sf Impervious Proposed Parking 26,200 sf Pervious (Remaining) Areas 10,938 sf Total = 1.71 ac. FPS SCOTT/R. CTILLINSZ Lic. No. 035791 ) 8/15/22 NZ2s10NAL S1 GwO W N z 0 g W F a � LUzo U) z W LU /A °�' z Y/ U < v o W Z W W � W O z � z F O � � 3 ~ Ln O O a W W o O k a U) X U) > Do3 Co � LU?tea o_ Co Z kO kO N ar, Q Ln J m Q z LU Q N O z U LU . �2: Uj w Q z G 0 L`. J J Q LU V) ��• G I L.L.) O / V LU r_ 0 2 U w J r ri H w w a ul) JOB NO. 122076 SCALE 1"=40' SHEET NO. 4 1� 14•� 0 �. /i" R TYPICAL SECTION (DIMENSIONS WAY VARY WITH MANUFACTURER'S DESIGN) STRI 2 STRI 4 VDOT MODIFIED DI-1 VDOT MODIFIED DI-1 STA. 1+89.01 647.0 646.2 STA. 0+90.86 641.7 TP=646f3 OPOSED 640.0 TP=64#t9 INV IN SPEI TO EX INLET 3-3 INV INI 699.96 TO 2 INV OUT: ¢4295 T❑ 8 RADE INV OUT, 6�k86 TO 6 INV OUT, 64945 TO 4 i VDOTSTD. ST- REQUIR D IN ALL STRI 6 PROPOSED STRUCTURES. FOR VDDT STD. MIT-1 STRUCTURES 2 AND 4, STEPS WIL Ism 646.8 BE USED FOR ACCE-- 639.75STTP°+75.98 & MAINTENANCE OF UND RGROUN INV IN: �639�4 TO 4 DETER I SYST M. i INV INI 8-94 T❑ 8 - i INV OUT:: 6g9T64 TO --AF 6 1.0 639 65 - Or .01 645 VDOTS D. EW- ) --- "-- 645 PROPOSEDVIN DOT 3COAR E ) 024' HDPE CORR. TYPES AGGREGATE (8o'Lx7'W x z' ) ) Y#93 LF @ t00'/.-1.12% 5 15, HDPE CORR. TYPE S w/GE TEXTIL FILTER 1 7508B.f5 LF @ S193Y. 9.6% UNDER YAMENT PENING OR BYP S STORM FABRI M $ SEWER ROUTIN MORE 640 IGNIFIC NTSTOR EVENTS. 640 030' DUROMAXX STEEL 15' HDPE CORR. TYPE S REINFORCED POLYETHYLENE 29.96 LF @ 8-68; 9.0 10. 7% 91.9 96.1-5 LF @ B 5B'f. 0 9 30' DUR❑MAXX STEEL RESTRICTIVE REINFORCED STEEL POLYETHYLENE WEIR PLATE INSIDE 30" PIPE OPENING AT I REINFORCED POLYETHYLENE WITH STRUCTURE 4 TO BE BUILT &SHIPPED BY THE MANUFACTURER WITH THE CONSTRUCTI E H98- LF @ 1.08% 1.96% OF THE DUROMAXX PIPE. SEE DETAIL ON THIS SHEET FOR WEIR PLATE DESIGN 0+50 1+00 1+50 2+00 2+50 3+00 AMENDED STORM SEWER GALVANIZED STEEL STEP MNIMUM OF }" EMBEDMENT ST-1 Na GRADE 60. REINFORCING ROD ENCASED IN A LORROSN)N RESISTANT RUBBER OR OTHER MATERIAL APPROVED BY THE ENGINEER. CDIMENSXJN MAY VARY WITH MANUFACTURERS DESIGN) CORROSION RESISTANT 5rMATERIAL N4 REINFORCING R00 CAL SECTION NOTES' STEPS WILL BE REOURED IN ALL STRUCTURES WITH A DEPTH OF 4'-0" OR GREATER UNLESS OTHERWISE NOTED ON THE PLANS. ALL STEPS SHALL PROTRUDE 4%2' FROM INSIDE FACE OF STRUCTURE WALL. MAXIMUM STEP SPACING TO BE %I' C-C. STEPS SHALE WITHSTAND A MINIMUM FORCE OF 300 POUNDS WHEN EXTENDED 4/2" FROM THE FACE OF THE SUPPORT. STEPS ARE TO BE VERTICALLY ALIGNED AND UNIFORMALY SPACED FOR THE ENTIRE DEPTH OF AIRY STRUCTURE, IN PRECAST UNITS STEPS MAY BE CAST N PULE, MORTARED INTO HOLES PROVIDED BY THE FABRICATOR.OR DRIVEN. STEPS OFFERING IN DIMENSIONS, CONFIGURATION, OR MATERIALS FROM THOSE SHOWN MAY ALSO BE USED PROVIDED THEY MEET THE MINIMUM REpURELENTS SHOWN HEREON AID THE CONTROGTOR HAS FURNISHED THE ENGINEER WITH DETAILS AND CERTIFIED TEST REPORTS OF THE PROPOSED SUBSTITUTE AND HAS RECEIVED WRITTEN APPROVAL FROM THE ENGINEER FOR THE USE OF SUCH STEPS. ALL STEPS INSTALLED SHALL BE PROVIDED WITH SLIP -RESISTANT SURFACES SUCH AS BUT NOT LIMITED TO.CORRUGATED KNURLED OR DIMPLED SURFACES. &UTAHM STEPS SHALL BE FABRICATED N ACCORDANCE WITH ASTM 8221, ALLOY 6005-T5. THAT PORTION OF THE STEP ENCASED IN MASCNRY SH L BE UNIFORMLY COATED WITH A BITUMNUOUS, SOLVENT TYPE, ASBESTOS FILLED &UMNUM PIGMENTED COATING CONFORMING TO FEDERAL SPEOFICATION TC-C-00490A y/ ALUMINUM STEP SPECIFICATION ,gyp lL7�T REFERENCE STANDARD STEP ROAD AND BRIDGE STANDARDS VIRGIN,' I'.-cARTMENT OF TRANSPORTATION REVISION DATE SHEET 1 OF 1 108.09 pipe alcert 7i8 dia holr Section L�l P 1 /2" zinc plated gook attached with 3/8' ra9tener single BAP/ Elevation QTITICE O 'L-1/8' d1a. holes I/4' HOPE p:elo (optional) HOPF structural pinxlir will• 2-1/8holes and 1/4" plate aanu`aetured by Plastic Solutions lnc. or cgUnl ' shown kith optional plate HDPF. sL•u0lar&I plastic Wll.h 2-1/8" holes and 1/4- plate manufactured by Plastic SoItttion9 Inr or equal PLASTIC P.O. Box A386 DEBRIS CAGE SOLUTIONS xinM MteP i'122801 INC. 877-977-6727 Wrtliallk-MIUU54am (STRUCTURE TO BE MODIFIED) STIR; EX INLET 3-3 VDDT DI-1 STA. 2+12,�647.15 TP=��7.1� 643.8 (STRUCTURE TO REMAIN) STIR, 8 INV IN: 649.98 TO EX INLET 3-2 INV OUT, 6.49.7 TO 2 STRI EX INLET 3-2 VDOT STD, MH-1 64 .67 VDOT DI-1 STA. 0+98.15 STA • 2+93.22 TP=64-?68. 647.6 642.6 ;P 655.33 INV INI 642.59�TO 2 655 INV OUT, 651:45 TO EX INLET 3-3 INV ❑UTI 642.49 TO 6 TS CONN ON & SHI PROFILE SCALE 1"=5,(V) 1"=5o'(H) DICTION 651. STRI 2 PROPOSE VDDT GRADE STA. 1 ,- TP- -�-- INV IN INV ❑ 645 -- "----' 9 INV ❑ BYPASS 640 015 HDPE CORR. YPE S 64O $. 5.0% 015'HPECORR ,TYP S F @ 9844 1.6 STR: 6 635 VDDT STD. MH-1 STA. 0+78.88 OPENING Ii 635 FCR UNDERGROUND TP=648•646.8 639.75 DETENTION SYSTEM UTING INV IN: fr39'4 TO 4 MORE FREQUENT STORMEVENTS INV INI �9.9. TO 8 INV OUT 1 G3}.64 TO 41.0 63 .6 PARENT 630 0+50 1+00 1+50 BYPASS STORM SEWER 642.5 +89.01 -64698647,0 UT: UNDERGROUND DETENTION SYSTEM NOTES: MODIFIED DI-1 1. SWIM FACILITY'S ORIFICE COEFF.=0.60 & WEIR COEFF.=3.3 2. DETENTION SYSTEM PIPING SHALL BE PRE -MANUFACTURED AND DELIVERED TO THE 641.7 030" WEIR PLATE DETAIL SITE TO PREVENT CORROSION AND LEAK WEAKNESSES. 644, -'O EX INLET 3-3 SCALE:i"=5' 3. PLEASE CONTACT COLLINS ENGINEERING (434.293.3719) & MATT WHITE OF CONTECH 64295 TO 8 (804.310.4829) REGARDING ANY QUESTIONS CONCERNING THE UNDERGROUND TO 4 REINFORCED STEEL POLYETHYLENE WEIR OVERFLOW DETENTION SYSTEM. 3.0 640.6 3.0 6 0.6 PLATE SHALL BE FASTENED INSIDE THE 4. SHALL BE INSTALLED ON ALL ORIFICES IN ACCORDANCE w/ THE OPENING IS PP 30" PIPE(STR. 5) ATTHE OPENING INTO OPENING IS APPROXIMATELY DETAILTRASITRACKS DETAIL SHOWN ❑N THIS SHEET. STR. 4. WEIR PLATE SHALL BE 2. 0' EQUAL TO A 022.2"ORIFICE S 5. UNDERGROUND DETENTION SYSTEM PIPING SHALL BE 030' CONTECH DUROMAXX, WATERTIGHT AT ITS CONNECTIONS WITH HYDRAULICALLY 6, UNDERGROUND DETENTION SYSTEM PIPING SHALL BE INSTALLED w/ ADEQUATE THE PIPE& SHALL SERVE ASTHE ELEV.=9642.4' STONE & STRUCTURAL BACKFILL IN ACCORDANCE w/ THE MANUFACTURER'S EMERGENCY OVERFLOW SPILLWAY/WEIR. 641.15' 1.25' SPECIFICATIONS, INSTALL AN 08" LOW -FLOW ORIFICE ELEV.=6iI v 7, ANY RETAINING WALLS CONSTRUCTED IN THE VICINITY OF THE UNDERGROUND (WITH STATE APPROVEDTRASHRACK) ELEV=639.9'` 1.25' N DETENTION SYSTEM SHALL HAVE GEOGRIDS PLACED ABOVE THE UNDERGROUND IN THE WEIR PLATE, INV.=639.96' DETENTION SYSTEM, OR OUTSIDE OF THE LIMITS OF PIPE CONSTRUCTI❑N, 8, THE CONTRACTOR MAY ELECT TO INSTALL A DIFFERENT PIPE MATERIAL FROM WHAT IS PROPOSED, HOWEVER THE CONTRACTOR SHALL ONLY INSTALL VDDT APPROVED MATERIALS FROM THE LIST PROVIDED IN VDDT STANDARD & SPECIFICATIONS 107.20, 107.21 AND 107.22 WHERE APPLICABLE. THE General. Construction notes for Stormwater Mana ement Plans 9 CONTRACTOR SHALL ENSURE MINIMUM STONE BACKFILL IS INSTALLED MEETING 1. All dams and constructed fill to be within 95% of maximum MINIMUM LOCAL & STATE REQUIREMENTS FOR ALL PIPE INSTALLATIONS. SEE dry density and 2% of optimum moisture content. All fill VDDT STD. PB-1 & PC-1 FOR MINIMUM PIPE BEDDING AND HEIGHT material to be approved by a geotechnical engineer. A REQUIREMENTS. CONTRACTOR SHALL NOTIFY COLLINS ENGINEERING PRIOR TO geotechnical engineer is to be present during construction ANY SUBSTITUTION FOR CONFIRMATION, AFTER HAVING RECEIVED IN WRITING of dams. AN APPROVAL FROM THE MANUFACTURER ALLOWING THE SUBSTITUTION FOR 2. Pipe and riser ,joints are to be watertight within ITS INTENDED USE. stormwater Management facilities, 3. For temporary sediment traps or basins which are to be converted to permanent stormwater management facilities) conversion is not to take place until the site is stabilized, and permission has been obtained from the County erosion control Inspector. tW-1, 1 A'L L SEE DETAIL A A-" m x m FRONT ELEVATION A- J P4 BANS 4 5° C-C EACH WAY, EACH FACE, NOTES 1. CONCRETE TO BE 4000 PSI 1fRAUM COMPRESSIVE STRENGTH. 2. IF PIPE IS TO BE SKEWED THE OPENING WILL BE ADJUSTED TO ACCOMMODATE ANGLES UP TO 45'. 3. REINFORCING STEEL IN ACCORDANCE WITH ASTM A-615 (REINFORCING BAPS). 4. PPE OPENINGS IN PRECAST DRAINAGE UNITS SHALL NOT EXCEED 4 INCHES AT ANY GIVEN POINT BETWEEN THE PIPE AND THE PRECAST UNIT_ 5. ONENSK)NS SHOWN ARE MINMIM. ACTUAL MEASUREMENTS MAY VARY WITH MANUFACTURER'S TOLERANCE. 6. IN NO CASE SHALL TOP OF ENDWALL PROJECT ABOVE FILL SLOPE, ETCH SLOPE, OR SHOULDER. 7. HEADWALL TO BE BEVELED IN ALL AREAS EXCEPT WHERE A CONFLICT WITH INVERT OR WNGWA1 OCCUR. e. BEVEL EDGE 15 REQUIRED ON THE HEADWALL AT THE INLET END OF THE CULVERT. SHAPE TI HEADWALL AT OUTLET END MAY BE EITHER SQUARE EDGE OR BEVELED. BEVELED MORTAR 9. 1'j' CHAMFER MAY BE PROVIDED ON ALL EDGES AT MANUFACTURER'S OPTION. EW-1PC ENOWALL FOR CIRCULAR PIPE DIAMETER OF PIP[ CULVERT 0 12" 15" 16" 21' OR 24" 27" OR 30" 33" OR 36" a 01-7/4" (MY•4' 0'-2" O'-2%1" 0'-31/.' 0'-3Y5° b 0'-1" 0'-f/;• 0•-i/•• 0•-2'• o•-z%r" 0'-3" If, Do. J SIP IQ I �N® SECTION A -A DO NOl BEVEL INVERT IN"4fT1" DETAIL B EW-WC ENDWALL FOR ELLIPTICAL PIPE SIZE OF ELLIPTICAL PIPE CULVERT (SPAN a RISE) S x D 23' x 14•' 30.. x 19•' 34" x 22" 36" x 24" 42" x 27" 45" X 29" 49" x 32' 53" x 34" H r-10" 2,-4„ 2,_7e 2,-y„ },_T, },-qa Y-B„ 3'-8„ L 5'-5" 7'-2' 9'-2" b'-2" UP-11' fY_P' 12'-11" a V-2:/i' 0'-3::/4" 0'-3%i, 0'-4" 0'-L/i ' 0'-4;'4' 0'-5" 0'.5'/r, h O'-2" 0'-2:/1" 0'-2YSi" 0'-3.. a-3A., 0'-3Y4" 0'-4" 0'-4'/i' XV PRECAST ENDWALL FOR PIPE CULVERTS SPECIFICATION ROAD AND BRIDGE STANDARDS SHEET 1 of , REVISION DATE 12" - 36" CIRCULAR AND 23" x 14" - 53" x 34" ELLIPTICAL PIPES 105 %1102 VIRGINIA DEPARTMENT OF TRANSPORTATION SOZ B°TT°MSTEEL WESS ENC0P91MTICN rHlawEss xlawBss DIMENSIONS FOR DUROMAXX SRPE xDMIruL D9MEGRod Acnrrl Dw.ETeallnl WATERWAY WPII NOMIN&THICKNESS (10) UNIT WEIGHT OM�AI STANDARD LENGTH (I MAXIMUM BELLS SPIGOT WELDED COUPLER AVAILABLE (C) LENGTH („) (A) LOW HEAD (LH)"GA HIGH PERFORMANCE (HP)150 30 29.53 0082 18a 14 & 24 50 Y Y Y 36 35.43 8082 23.8 14 & 24 50 Y Y Y 42 41.0 0.082 27.0 14 & M 50 Y Y Y 48 47.24 0.130 30.8 14 & 24 50 Y Y Y 64 53.15 0,130 36.1 14 & 24 50 Y Y Y 60 59.05 0,130 42.9 14 & 24 50 Y Y Y 66 64.96 0,220 56.9 14 & 24 50 Y N Y 72 70.87 0.220 65.6 14&24 SO Y(B) Y Y 84 82.68 0.220 76.3 14&24 SO Y (B) N Y 96 SLAG 0,220 87.0 14&24 SO N N Y 100 to BUD 99.7 14&24 40 N N Y 120 118.11 BUD 109.0 14&24 40 N N Y A MAXIMUM LENGTH IS DEPENDENT UPON TRUCK AVAILABILITY. PIPE LENGTHS EXCEEDING M CANNOT BE AIR TESTED AT THE FACTORY BEFORE SHIPMENT. 43.5. PAIN E CAN MAKE B&S' VERIFIED. PIPE UP E A MAXIMUM OF 24', PLAIN END PIPE UP T04P VERIFIED. OLDEN CAN MAKE B8S PIPE LENGTHS UP T043.S. PLAIN END UP T048' VERIFIED. MEXICO CAN MAKE BOTH B8S AND PLAIN END PIPE UP TO W. (B) B&S IS AVAILABLE BUT NOT RATED FOR 3 PSI VIA 3RD PARTY TESTING, ONLY SOIL TIGHT. (C) WELDING EQUIPMENT MAY NOT FIT INSIDE PIPE AND WILL BE LIMITED TO THE REACH OF THE CABLES TO FUSE A JOINT FROM THE PIPE END. SCOPE THIS SPECIFICATION DESCRIBES DUROMAXX PIPE FOR USE IN MULTIPLE APPLICATIONS IN SOP THROUGH 120" NOMINAL DIAMETERS. DESCRIPTION DUROMAXX IS A REINFORCED POLYETHYLENE PIPE WITH A SMOOTH WATERWAY WALL AND EXTERIOR PROFILE THAT IS REINFORCED WITH HIGH STRENGTH GALVANIZED STEEL RIBS. THE CONTINUOUS REINFORCING RIBS ARE COMPLETELY ENCASED WITHIN THE POLYETHYLENE PROFILE. DUROMAXX IS MANUFACTURED USING A HELICAL WINDING PROCESS THAT RESULTS IN A CONTINUOUSLY FUSION WELDED CIRCUMFERENTIAL LAP SEAM. THE PIPE PROFILE IS MANUFACTURED USING A HIGH QUALITY PRESSURE -RATED THERMOPLASTIC MEETING THE REQUIREMENTS OFASTM F2562'STANDARD SPECIFICATION FOR STEEL REINFORCED THERMOPLASTIC RIBBED PIPE AND FITTINGS FOR NONPRESSURE DRAINAGE AND SEWERAGE". FOR THE PURPOSE OF HYDRAULIC DESIGN, THE RECOMMENDED MANNING'S °N° VALUE SHALL BE OB12 FOR PIPE DIAMETERS INCLUDED WITHIN THIS SPECIFICATION. MATERIAL PROPERTIES VIRGIN HIGH DENSITY POLYETHYLENE PRESSURE4TATED RESINS ARE USED TO MANUFACTURE DUROMAXX PIPE. RESINS SHALL CONFORM TO THE MINIMUM REQUIREMENTS OF CELL CLASSIFICATION 335420 C OR E (335130 C OR E FOR SANITARY APPLICATIONS) AS DEFINED AND DESCRIBED IN THE LATEST VERSION OF ASTM D3350'STANDARD SPECIFICATION FOR POLYETHYLENE PLASTICS PIPE AND FITTINGS MATERIALS". FITTINGS LATTERAL STUBS P30-SHALL BE BOB 32.5,17OR 11. LATERAL STUBS-36-SHALL BE SRPE. RISER STUBS <= 2r SHALL BE SDR 32.5.17 OR 11. RISER STUBS 30' THRU 48" SHALL BE COMBO SDR 32.5IM294. RISER STUBS>= W SHALL BE SRPE. fillilljol //G ��1�TECHO 101 - DuroMaxx ENGINEEEEDSOLImOM 1UJC DurtaMaxxe STANDARD DIMENSIONS www.Cont"hES-com ""`"""`°°°`°'OLYELXY1XE1 ENGLISH UNITS 'i 9025 CBMa POiMe ar., 91,11.4W, WM CM1BBNr, OH C5D89 80633&1122 5131NS]CUO 513915-7993 FA% DATE:01-01-15 $CALE:NGNE PROJECT W.:°OW Mo. NO.COG° aMWN:JAPI$C ECKEO:._. STEEL REINFORCED BELL DUROMAXX BELL HIGH PERFORMANCE (HP) JOINT DETAIL 11121-DMX-BELL & SPIGOT 15 PSI FPS CONSTRUCTION NOTES: Gam' 1. ALL FILL EMBANKMENT MATERIAL, UNLESS OTHERWISE SPECIFIED BY A 0TTRLINSZ MANUFACTURER'S MORE STRINGENT REQUIREMENTS, SHALL CONSISTf�',SLCPREDOMINANTLY OF SOIL AND BE PLACED IN SUCCESSIVE UNIFORM LAYERS Li ic. No. 035791,'n NOT MORE THAN 8 INCHES IN THICKNESS BEFORE COMPACTION OVER THE r(L ENTIRE AREA IN ACCORDANCE WITH VDDT 2008 ROAD AND BRIDGE •4� H�1$122 'l2 1 SPECIFICATIONS. 0� 2. VDOT STD. IS-1 REQUIRED ON ALL STRUCTURES. �SS'IONAL E�O� 3. THE MINIMUM REQUIREMENTS SET FORTH IN VDOT STD. PB-1 SHALL BE MET FOR PIPE BEDDING AND BACKFILL. THE MINIMUM HEIGHT OF COVER FOR PIPES SHALL BE MET AND BE IN ACCORDANCE WITH VDOT STD. PC-1. 4. ALL FILL SHALL BE PLACED AT 95% COMPACTION AND TESTED BY A GEOTECHNICAL ENGINEER TO ENSURE COMPACTION IS REACHED AND MAINTAINED. 5. PRIOR TO CONSTRUCTION THE CONTRACTOR SHALL TEST -DIG AT THE EXISTING INLETS & OUTFALLS TO CONFIRM THE INVERTS AND TO ENSURE THE PROPOSED GRADES CAN BE ACHIEVED. CONTRACTOR SHALL ALSO VERIFY EXISTING ELEVATIONS OF CURB, GUTTER, PAVEMENT AND BUILDINGS. CONTRACTOR SHALL NOTIFY COLLINS ENGINEERING OF ANY DISCREPANCIES LLo IN THE HORIZONTAL OR VERTICAL ALIGNMENT PRIOR TO ORDERING AND CONSTRUCTION. Izu r4 6. ALL PROPOSED SLOPES STEEPER THAN 3:1 SHALL HAVE A LOW 2: N Z MAINTENANCE GROUND COVER FOR STABILIZATION PURPOSES. THESE z g AREAS SHALL NOT BE PLANTED WITH A GRASS COVER FOR STABILIZATION tu LU F & SHALL BE A GROUND COVER CHOSEN FROM TABLE 3.37C OF THE VESCH ¢ UNLESS OTHERWISE DIRECTED BY THE INSPECTOR. g U) W 7. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY ZO H w WITH OSHA STANDARDS FOR CONSTRUCTION INDUSTRY (29 CFR PART H LU a 8. PRIOR TO PLACING THE UNDERGROUND DETENTION SYSTEM BEDDING, THE U) ctf V U O < FOUNDATION SHALL BE CONSTRUCTED TO A UNIFORM AND STABLE GRADE. to w U IN THE EVENT THAT UNSUITABLE FOUNDATION MATERIALS ARE Z p Lu CC DURING EXCAVATION, THEY SHALL BE REMOVED AND z F z ¢ BROUGHT BACK TO THE GRADE WITH A FILL MATERIAL APPROVED BY THE O u- O 3 PIPE MANUFACTURER MEETING MINIMUM VDOT REQUIREMENTS. ONCE THE In U FOUNDATION PREPARATION IS COMPLETE, 6" OF A WELL -GRADED > J ¢ p GRANULAR MATERIAL SHALL BE PLACED AS THE BEDDING. (�A/� \/J LU LU H_ X In > Do OZ Do Jo m W ?tea Z > 14:eens s-uneAO M.c Au BRIE • c qeE ANe wY wnau: A1DLPp set to at 11w,Utt It Lr*eNI FHeN•n3"o. r.rc NRve\a.•1et! DU `` 6rppE (ti4T@691,r1ML1:S ��efTAl6 I[.& eNt of SIUYw M HSE ro M AAF ersoxc erect lain - NI mil"2 rtf LY %-eM1 Yrc rHe et NA-T _ .: i 10DEE O SIDE VIEW ELEVATION VIEW (OUTSIDE OF THE PIPE) wACE wE NIwP NNNRtlIILYMN ELATE MIWEFRMMerAr HER eu,obEe FUR FRO0i� My EDNFA We :•xL HCN w:LD TIN -I V, .4_ -'"1 n: a LY: •. Ln if xrNe]ilaR YAN•fAC M1F Will PWCRIE AMIP AAA rlM [tlL11QR'JNON ccNc DETAIL B SECTION Ail Mbrei 1.11EeT4LL WELDe FO0. WATER TIDHTNE81 vacs sIAINNFUD OFeKP•M a FOR 1EIaI--6 of Dove+ uv To es•wrN WATFJIT/JlE AT dl eELDW rEE CNOw� D. THE APE. RJA exMraM 0Ee1DN IB WOUREO F T4 OG.ER "Elti.•T EXCEEDe efN OR ME WIAIEA 7Wf IS A&G-A TH LJIUM t- T„F NI'f CA LILVN:O ExLEED5 COH•ENTiI y0•n.AY LOADS -4L-P. NOMINALPIPE DIA. (in) BELLO.D. (in) BELL LENGTH (in}MAX 30 34.0 8.90 36 39.9 8.90 42 45.8 8.90 48 52.3 8.90 54 58.2 a W 80 64.1 8.90 72 77.6 11.15 C"'*,NTECHW 121 - DuroMaxx RNIR!®®SOIVIlON6 LLC DuroMag STANDARD JOINT CONNECTION ,Ynn.CDntacNE_S.Com REEL REINFOROEDRTEOHNOtD•Y BELL &SPIGOT 15 psi (HP) Sfl25 Centre Pdnb E., 80ee 400, West ClNeler, OH 0.5089 8003331122 5136457000 513-8467993FAX DATEDRAMN 03.2a-14 REVM REVDATE: SCALE: NONE DRANNGTYPE: - 30'0 DUROMAXX BULKHEAD W SRDE PROFILE RIB REINFORCEMENT land I- V CIAMF-ER -EIaTN iiEDC MA-FaILL DE9:RpTKIN .. ]l- NM yT MO[KR NIWf/O MITE RIIKIO T X.E. '.1- .1. Au CHI. 17111 ITe lwIN+EOeIl EMNr At. 1IaNNNIDAt1AFO1OEYEA• COKMW TT1AR"E'EUX e01i MC ..aNt..r.•Pw�.• 4[NfY4• M40.fI.01 NM C.•M1..l•.][I, A 50D4]AIX.9TD 6LlR1E�30 N �w1-.r �• vs14 500-DLeoMexx �• �- STANDARD BULKHEAD 30" REINFORCED BULKHEAD TRENCH CONDITION EMBANKMENT CONDITION h ,,v �,f'�C- FINAL CKFILL � � •••, "" ';y.`'"'' ^ �� s'S ��\ ,r,_ .�' INITIAL BACKFILL '",.n5c'3+• st ' IN SITU W a h* 4 � L •%. m ' / w wa PIPE ZONE DIAMETER \ a HAUNCH ZONE Se BEDDING 3 \% FOUNDATION 2 � � 'FOR INITIAL BACKFILL USE ASTM D2321, CLASS I, II MATERIAL. •'REDUCED MAX. COVER WHEN USING ASTM INITIAL FILL ENVELOPE O 1a D2321 CLASS III MATERIAL IN TRENCHIHAUNCH ZONE OR FOR FIRST BACKFILL. OMINIMUM TRENCH WIDTH MUST ALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER PIPE. MIN. WIDTH =(1.25X DIAMETER) 412' (FOLLOW ASTM D2321) to MINIMUM EMBANKMENT WIDTH IS 3 PIPE DIAMETERS BUT NO LESS THAN Y• OUTSIDE OF SPRINGLINE. OFOUNDATION SHALL BE WELL CONSOLIDATED &STABLE. OBEDDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS ROUGHLY SHAPED TO FIT THE BOTTOM OF THE PIPE, V TO 8" IN DEPTH. ODUROMAXX STEEL REINFORCED (SRPE) PIPE. (D INITIAL BACKFILL FOR PIPE EMBEDMENT MATERIAL TO MEET ASTM D2321 CLASS 1, 11, III OR APPROVED EQUAL, COMPACTED TO 90% STANDARD PROCTOR (NATIVE MATERIAL CAN BE UTILIZED THAT MEETS ASTM D2321 OR APPROVED EQUAL). • ALL LIFTS PLACED IN CONTROLLED MANNER. TO PREVENT UNEVEN LOADING, IT IS RECOMMENDED THAT LIFTS NOT EXCEED 8• UNCOMPACTED LIFT HEIGHTS. O HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION. © INITIAL BACKFILL ABOVE PIPE MAY INCLUDE ROAD BASE MATERIAL AND RIGID PAVEMENT (IF APPLICABLE), MINIMUM COVER STILL APPLIES, OTHERWISE: 6• MINIMUM FOR PIPE DIAMETERS 30'- 60" IT MINIMUM FOR PIPE DIAMETERS 66•- W O HEIGHT OF COMPACTED COVER PER DIAMETER FOR CONVENTIONAL HIGHWAY LOADS (DISTANCE MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT): 12' MINIMUM FOR PIPE DIAMETER$ 30'- 60' 18' MINIMUM FOR PIPE DIAMETER By - 72" 24' MINIMUM FOR PIPE DIAMETERS 84' -96' O FINAL BACKFILL MATERIALSELECTION AND COMPACTION REQUIREMENTS PER THE PROJECT PLANS. SPECIFICATIONS. ENGINEER OF RECORD. NOTES: • GEOTEXTILE SHALL BE USED AS REQUIRED TO PREVENT SOIL MIGRATION. • FOR MULTIPLE BARREL INSTALLATION THE RECOMMENDED STANDARD SPACING BETWEEN PARALLEL PIPE RUNS SHALL BE=PIPE DIA.12 OR T FOR PIPE DIAMETERS 72" AND LARGER. CONTACT YOUR CONTECH REPRESENTATIVE FOR NONSTANDARD SPACING. • BACKFILL REQUIREMENTS SHALL FOLLOW ASTM 02321. IN THE EVENT OF DISCREPANCIES, ASTM 02321 SHALL SUPERCEDE THIS DETAIL. 200-DMX-STD BACKFILL ASTM Co.' NTECHP 200 - DuroMaxx I NEEREDSOLUTIONSLLC DuraMaxx STANDARD BACKFILL w .Contec„ES.com STEEL REINFORCED PE TECHNOLOGY ASTM 902S Celle PddA On, &it 100, Wed GMEEA, OH 45099 8009:18-1122 513$ 7000 513$0.S]993 FA% DATE DRAWN: 032&id REVY:2 REV DATE: ­1 15 SCALE: N.T.S. DRAWINGTYPE:- MAX 75°k MAX DIAMETER COVER' COVER" 30'd2' 50'-0' 3T4i' UD UD N Q n W ) 0 m J' ^ m L / m F� D Q �./'� I W 0 Q o s uj m N 1 � Q 0 o Ja U Q0 w 3 UJJ Q LL n LU p 1 1 1 O • c o LL Q E J LU z o L / iZ C Z_ G � LU W Z J Z J Z W I-1 W N \ Z / J J O U LU o N O L_L n 0 J n O m LL > ,O X V) U x 2 9, U L m W o J H~ H-LU c 0 I W E W 6 U d � JOB NO. m 122076 0 m SCALE m 0 AS SHOWN 0 SHEET NO. a 4A W m F