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HomeMy WebLinkAboutWPO202000045 VSMP - SWPPP 2020-10-07 (2)Section 4. Erosion and Sediment Control Plan. (Provide a reduced, I W 7 copy of the latest Erosion and Sediment Control Plan. Do not reference only.) Issued — 10/2014 Stormwater Pollution Prevention Plan (SWPPP) Albemarle County GENERAL NOTES OWNERS: TMP 04600-00-00-019B3 CROCKETT CORPORATION 43S PARK STREET CHARLOTTESVILLE, VA 22901 DEVELOPER: RIVERBEND DEVELOPMENT, INC. 4SS SECOND STREET SE, SUITE 400 CHARLOTTESVILLE, VA 22903 ENGINEER: COLLINS ENGINEERING Zoo GARRETT ST, SUITE K CHARLOTTESVILLE, VA 22902 TAX MAP: 04600-oo-oo-oi9B3 D.B. Soli, PG. 270 39.98 ACRES ZONING: NEIGHBORHOOD MODEL DEVELOPMENT DISTRICT (ZMA2o18000i3. WITH PROFFERS -APPROVED BY THE BOARD OF SUPERVISORS ON JULY 27,2019) -THE CODE OF DEVELOPMENTAND APPLICATION PLAN FROM ZMA201500007 ARE STILL VALID AND STILL APPLY TO THE BROOKHILL PROJECT. ENTRANCE CORRIDOR OVERLAY (EC), AIRPORT IMPACT OVERLAY (AIA), MANAGED AND PRESERVED SLOPES OVERLAY DISTRICT, AND FH-FLOOD HAZARD OVERLAY ZONING DISTRICT NOTE: A SPECIAL USE PERMIT APPLICATION (SP2015-00025) WAS APPROVED TO ALLOW THE GRADING ACTIVITIES IN THE FLOOD HAZARD OVERLAY DISTRICT (FH). THE SP WAS APPROVED ON NOVEMBER 9, 2oi6 BY THE BOS WITH CONDITIONS. TOTAL PROJECT AREA: TOWN CENTER - 39.98 AC PROPOSED USE: MASS GRADING FOR FUTURE TOWN CENTER BLOCK CLASSIFICATION: VILLAGE CENTER: NEIGHBORHOOD SERVICE CENTER AND URBAN DENSITY ALLOWABLE DENSITY: 52 UNITS (MINIMUM) To 154 UNITS (MAXIMUM) - 2 DUA TO 6 DUA FOR THE PARCEL BASED ON 25.8 AC WATERSHED: THE PROPERTY IS LOCATED WITHIN THE NON -WATER SUPPLY WATERSHED AREA OF THE SOUTH FORK RIVANNA RIVER AGRICULTURAL/FORESTAL DISTRICT: NONE TOPOGRAPHY & SURVEY: TOPOGRAPHY WAS COMPILED FROM SURVEY BY LINCOLN SURVEYING AND BELL LAND SURVEYS, JANUARY 2025. BOUNDARY INFORMATION WAS COMPILED BY LINCOLN SURVEYING ON MARCH 7, 2os5. FIELD VERIFIED BY COLLINS ENGINEERING, MAY 2020. DATUM: NAVD s988 EXISTING VEGETATION: THE PRE -CONSTRUCTION GROUNDCOVER WAS A MIXTURE OF GRASS AND WOODS. CURRENTLY THE AREA IS AN ACTIVE CONSTRUCTION SITE AND THE LANDCOVER IS NOW A MIXTURE OF GRASS, WOODS AND EXPOSED EARTH. ARCHER AVENUE, THE ICE RINK SITE AND APPROVED WET POND 4 HAVE BEEN CLEARED & ARE CURRENTLY UNDER CONSTRUCTION. BURIAL SITES: NO CEMETERIES WERE FOUND DURING FIELD INVESTIGATION OF THIS SECTION OF THE DEVELOPMENT. PRESERVED/MANAGED SLOPES: PRESERVED SLOPES AND MANAGED SLOPES ARE SHOWN WITHIN THE LIMITS OF THE PROPERTY. SEE EXISTING CONDITIONS PLAN SHEET AND GRADING & DRAINAGE SHEETS. FLOODPLAIN: THERE IS A ioo-YR FLOODPLAIN LOCATED IN THE BROOKHILL DEVELOPMENT PER FEMA MAP ID 52003Co28oD, DATED FEBRUARY 4, 2005. IN ADDITION, A DAM BREACH INUNDATION ZONE EXISTS IN THE BROOKHILL DEVELOPMENT FOR THE SOUTH RIVANNA DAM, WHICH IS A FEDERAL DAM LOCATED UPSTREAM OFTHE PROPERTY. THE APPROVED FOP PERMIT # IS 2o1600004. RETAINING WALLS: NO RETAINING WALLS ARE PROPOSED WITH THIS PLAN. THE FINAL SITE PLAN FOR THE FUTURE TOWN CENTER, WHICH IS SEPARATE FROM THIS PLAN, WILL INCLUDE RETAINING WALLS. UTILITIES: NO UTILITIES ARE PROPOSED WITH THIS PLAN. THE FUTURE TOWN CENTER, REVIEWED UNDER A SEPARATE PLAN, WILL RECEIVE ALBEMARLE COUNTY WATER AND SEWER V CI ITY AP: BROOKHILL TH QF��� 0 SCOTT R. LINS� U Lic. No. 035791 ,� SECTION 1 MASS GRADING �ITF, ABL�n0 �;p 08/04/20 VSMP PLAN AMENDMENT #2 (WP0201700037) RIVANNA MAGISTERIAL DISTRICT ALBEMARLE COUNTY, VIRGINIA EXHIBIT OF CURRENT APPROVED INFORMATION SCALE 1"=100' POtO GROUN� Sheet List Table Sheet Number Sheet Title 1 COVER 2 EXISTING CONDITIONS 3 EROSION & SEDIMENT CONTROL PLAN NOTES, NARRATIVE & DETAILS 4 EROSION & SEDIMENT CONTROL PLAN OVERVIEW 5 PHASE IA EROSION & SEDIMENT CONTROL PLAN 6 PHASE IB EROSION & SEDIMENT CONTROL PLAN 7 PHASE IC EROSION & SEDIMENT CONTROL PLAN 8 PHASE ID EROSION & SEDIMENT CONTROL PLAN 9 PHASE IIA EROSION & SEDIMENT CONTROL PLAN 9A PHASE IIIA EROSION & SEDIMENT CONTROL PLAN 96 PHASE IIIA (ALTERNATE) EROSION & SEDIMENT CONTROL PLAN 10 PHASE 1113 EROSION & SEDIMENT CONTROL PLAN 11 PHASE IIC EROSION & SEDIMENT CONTROL PLAN 12 PHASE IID EROSION & SEDIMENT CONTROL PLAN i3 EROSION & SEDIMENT CONTROL PLAN DETAILS 14 PRE DEVELOPMENT STORMWATER MANAGEMENT PLAN 15 POST DEVELOPMENT STORMWATER MANAGEMENT PLAN i6 STORMWATER MANAGEMENT DETAILS 27 STORMWATER MANAGEMENT DETAILS 18 STORMWATER MANAGEMENT DETAILS 19 OVERALL BROOKHILL STORMWATER QUALITY COMPLIANCE TABLE 21 TOTAL SHEETS EROSION CONTROL * ' CONTROL HANDBOOK SPECIRCARON NUMBER CE UMM CONSTRUCTION ENTRANCE 3.02 CR CR SF �� sr 0 SB luJ OP RR CD , TS TS PS PS O DC DC CONSTRUCTION ROAD 3.03 STABILIZA IT ON SIL T FENCE 3.05 SEDIMENT TRAP 3.13 SEDIMENT BASIN 3.14 OUTLET PROTECTION 3.18 R/PRAP 3.19 CHECK DAM 3.20 TEMPORARY SEEDING 3.31 PERMANENT SEEDING 3.32 TREE PROTECTION 3.38 DUST CONTROL 3.39 APPROVED by the Albemarle County Comm O ity po ve pp02 O Department Date tf/ /2 Fllo WP0201700037-amendment 2 APPROVALS DATE DEPARTMENT OF COMMUNITY DEVELOPMENT PLANNER/ZONING ENGINEER INSPECTIONS ARB DEPARTMENT OF FIRE RESCUE ALBEMARLE COUNTY SERVICE AUTHORITY VIRGINIADEPARMENT OF TRANSPORTATION HEALTH DEPARTMENT z O a la- Z � co O 0 Z Q O H .�. zE W z F�1 W ce 0 0 0 W N N N Q k n 7 o INN C) N p OJ A Z W W J J 0 U 47 ti M M N d' co i N CD Ci7 N N L1J J J U) H F_ O U i LU D CIO F_ LU LU U) LLl O O N z 0 U (W V J J 0 M� W LLJ 0 U J H W W W a to JOB NO. 182150 SCALE AS SHOWN SHEET NO. 1 \� \ GENERAL NOTES: / �TH 0�� �I 1. NO FLOODPLAIN EXISTS ON THE SUBJECT SITE PER I j \ FLOODPLAIN MAPS # 51003CO280D. .. G7 \ EXISTING SANITARY SEWER AND ` ® 2. BEFORE BEGINNING SITE WORK THE CONTRACTOR SHALL \ , BLOCK g \ \ zo SANITARY SEWER EASEMENT INVESTIGATE AND VERIFY THE EXISTENCE AND LOCATION OF �SCOTT R. LINS'Z \ \ 1 UNDERGROUND UTILITIES MECHANICAL AND ELECTRICAL SYSTEMS I \ � U Lie. No. 035791 ,a �I 1 AND OTHER CONSTRUCTION AFFECTING THE \ I WORK. � BEFORE � I / \` o CONSTRUCTION THE CONTRACTOR SHALL VERIFY THE LOCATION � 06 25 20 / / sv I J \ x AND INVERT ELEVATIONS AT POINTS OF CONNECTION OF SANITARY � ♦ z o S G 1 � — S N \ 1 SEWER, STORM SEWER, AND WATER SERVICE PIPING; NAL i ALBEMARLE COUNTY BLOCKu \ � w "MANAGED STEEP SLOPES \ UNDERGROUND ELECTRICAL SERVICES, AND OTHER UTILITIES. THE z \ \ �` / - \CONTRAC R L FURNISHLOCATIONDATAFORWORKRELATED / z TO PROJECT THAT MUST BE PERFORMED BY PUBLIC UTILITIES w SERVING THE PROJECT SITE. z_ '��a 3 I PE & LOCATION OF EXISTING CONTRACTOR SHALL VERIFY SIZE, TYPE V) a UTILITY LINES ON THE SITE. F c� 4. THIS PROJECT INCLUDES A PROPOSED GREENWAY. v v ALBEMARLE COUNTY v ' \ / PRESERVED STEEP SLOPES ♦ ° \ / v �.� ,v �.- LIMITS OF SUNNY�I / � o \ \ \ DAY DAM BREACH \ a p o \ a/ z a a r — a/ a x u z / \ \, . \ ` �© ` _ _ // Z w COw GREENWAYTYPPROPOSED \ o �o i ® ,f • _ • / / - z < o O L a Y III ' / . ,� ` _ \ \ ` \ `• Oo o �. ® / Ln ill F w .3 Z > c0 ¢ 0 � EXISTING LIMITS v \ \ s L OFTREELINE v_ \\� a LIMITS OF FEMA APPROVED I Q u \ I \ � { WBLOCK 46 Ao c / \ \ SDP2oi800014INITIAL fill IIIIII 1IIIIII III1 II\II I I,IIIIIIIIIIIII�I�I_IIIIIAII�IIIII\ IIIIII � �I I ��•a �, II l � TE PLAN _-_,—I APPROVEDo\--I�/:a_z - I /i---zI Io -lI-is - -- --����- •� I • ,EI XI_S \T-\�- /IJNGor STREAM _T--R-E-_A_M- •S —� '-- �I Ia1 ,.�• r \ �\—VAO\v� o o a \ ®�♦,I v A® 1 m�a1 oA�oa \ a o�A�,�I-1�0: �I11/ ��I/A�o \`�\ o •( �\ � � 0° 1 1vI \- I � -L�zCwwwao-o PROJECT BOUNDARY (TYP.)SDPzoi800050 _BLOCK2FINAL SITE PLAN PROVED iz/17/zois APoNIWP02o18000i PROJECTBOUNDARY (TYP.) a VSMP PLAN APPROVED o8o/zoi9 o EXISTING DIVERSION AREA OF NEW DISTURBANCE o BLOCK: PROPOSED WITH THIS oMENDMENT #Z TMP: 04600-00-oo-oi8BoJ OWNER. HORNE LAND CORPORATION o O�o ACREAGE: .AC L9 ZONING: RURAL DB/PG: 624/191 EXISTING Z PROPOSED ROAD TRAP 4C (APPROVED UNDER SDP2oi80005o) co EXISTING DIVERSION AREAOFEXISTING IDISTURBANCE a® APPROVED WITH ®i Q WP0201700037 EXISTING DIVERSION AMENDMENT #1 v WJ ° _ �wAREA OF NEWo ODALBEMARLECOUNTYEXISTING GRAVE DISTURBANCE ° O WITH THIS ACCESSwav o MANAGED STEEP SLOPES O O z— L9AMENDMENT #2 BLOCK 3 U r�ICERINK ILI & PARKING IEXISTING Lx I�I IlPOND #4 Lu �a\ � Ln L----—- �ALAMANDER STo\ 0 W O o ~ o I��L1J Jre � C) CID o / 2 o b a JOB NO. oo�o0ua0000oa7 o IiV a 1\\�1111�i� IIII ,,, i��A \ a \� o v�. �II v� \ 182150 • vvo 111 �/y�l\11111 /\IIII i�I��l yII' �v \ GRAPHIC SCALE' vI\ v\ „SCALE ® O 50 300 200 \ 6 _ 1 0 1=100 , 11I1 I 111 il` I I SHEET NO. n IN FEET) \\ a ®® �� I 2 U EROSION & SEDIMENT CONTROL MEASURES: STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE /N ACCORDANCE NTH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. STRUCTURAL PRACTICES USED IN THIS SECTION CONSIST OF THE FOLLOWING: A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY VIRTUE OF P07EN77AL ACCESS BY THE PUBLIC. 3.02 CONSTRUCTION ENTRANCE." A STABILIZED CONSTRUCTION ENTRANCE LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION SITE. TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS. 3.03 CONSTRUCTION ROAD STABILIZATION: THE TEMPORARY STABILIZATION OF ACCESS ROADS, SUBDIVISION ROADS, PARKING AREAS, AND OTHER SITE VEHICLE TRANSPORTATION ROUTES WITH STONE IMMEDIATELY AFTER GRADING. TO REDUCE EROSION OF TEMPORARY ROADBEDS BY CONSTRUCTION TRAFFIC DURING WET WEATHER AND TO REDUCE EROSION AND SUBSEQUENT REGARDING OF PERMANENT ROADBEDS BETWEEN THE TIME OF INITIAL GRADING AND FINAL STABILIZATION. USE WHEREVER STONE -BASE ROADS OR PARKING AREAS ARE CONSTRUCTED, WHETHER PERMANENT OR TEMPORARY, FOR USE BY CONSTRUCTION TRAFFIC. 3.05 SILT FENCE., A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SMTHE77C FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED, TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE, AND TO DECREASE THE VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS THE SILT FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WI774 774E VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). 307 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 PROTECTION APPLIES WHERE STORM DRAIN INLETS ARE TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZATION 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 STORMIll RUNOFF MUST BE TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON SITE DURING CONSTRUCTION. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 MONTHS OR LESS, WHICH CAN BE PROLONGED WITH PROPER MAINTENANCE. 3.11 TEMPORARY RIGHT-OF-WAY DIVERS/0N.- A RIDGE OF COMPACTED SOIL OR LOOSE ROCK OR GRAVEL CONSTRUCTED ACROSS DISTURBED RIGHTS -OF -WAY AND SIMILAR SLOPING AREAS. TO SHORTEN THE FLOW LENGTH WITHIN A SLOPING RIGHT-OF-WAY, THEREBY REDUCING THE EROSION P07EN77AL BY DIVER77NG STORM RUNOFF TO A STABILIZED OUTLET. GENERALLY, EARTHEN DIVERSIONS ARE APPLICABLE WHERE THERE WILL BE LITRE OR NO CONSTRUCTION TRAFFIC WITHIN THE RIGHT-OF-WAY. GRAVEL STRUCTURES ARE MORE APPLICABLE TO ROADS AND OTHER RIGHTS -OF -WAY WHICH ACCOMMODATE VEHICULAR TRAFFIC. 3.13 TEMPORARY SEDIMENT TRAP. A TEMPORARY PONDING AREA FORMED BY CONSTRUC7NG 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 CONTRIBUTING DRAINAGE AREA IS LESS THAN 3 ACRES, WHERE THE SEDIMENT TRAP WILL BE USED NO LONGER THAN 18 MONTHS AND /T MAY BE CONSTRUCTED EITHER INDEPENDENTLY OR IN CONJUNCTION WITH A TEMPORARY DIVERSION DIKE. A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE STRUCTURE FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. TO DETAIL SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS IN "WET" AND 'DRY" STORAGE LONG ENOUGH FOR THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. APPLIES BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBUTING 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. 318 OUTLET PROTECTION: STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPATING 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 POTEN7AL FOR DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED STORMWAITER FLOWS APPLICABLE TO THE OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL SECTIONS. 3.19 RIPRAP: A PERMANENT EROSION -RESISTANT GROUND COVER OF LARGE LOOSE ANGULAR STONE WITH FILTER FABRIC OR GRANULAR UNDERLINING. TO PROTECT THE SOIL FROM THE EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW THE VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING THE POTENTIAL FOR INFILTRATION AND TO STABILIZE SLOPES WITH SEEPAGE PROBLEMS AND OR NON -COHESIVE SOILS. USE WHEREVER SOIL AND WATER INTERFACE AND THE SOIL CONDITIONS WATER TURBULENCE AND VELOCITY, EXPECTED VEGETA77VE COVER, ETC, ARE SUCH THAT THE SOIL MAY ERODE UNDER THE DESIGN FLOW CONDITIONS. 3.25 U77LITY STREAM CROSSING., A STRATEGY FOR CROSSING SMALL WATERWAYS WHEN IN-S7REAM UTILITY CONSTRUCTION IS INVOLVED. TO HELP PROTECT SEDIMENT FROM ENTERING THE STREAM FROM CONSTRUCTION WITHIN APPROACH AREAS. TO MINIMIZE THE AMOUNT OF DISTURBANCE WITHIN THE STREAM ITSELF. GENERALLY APPLICABLE TO FLOWING STREAMS WITH DRAINAGE AREAS LESS THAN ONE SQUARE MILE. J.31 TEMPORARY SEEDING. THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS TO REDUCE EROSION AND SEDIMENTAT70N BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF -SHE AREAS AND TO PROVIDE PR07ECT70N TO BARE SOILS EXPOSED DURING CONSTRUCTION UNTIL PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 3.32 PERMANENT STABILIZATION: THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANTING SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT /S ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPR/A IF PLANT MA 7ER/ALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. 3.36 SOIL STABILIZATION BLANKETS AND MATTING: THE INSTALLATION OF A PR07EC77VE COVERING BLANKET OR A SOIL STABILIZATION MAT ON A PREPARED PLANTING AREA OF A STEEP SLOPE, CHANNEL, OR SHORELINE) 338 TREE PRESERVATION AND PROTECTION: PROTECTION OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION ACTIVITY. TO ENSURE THE SURVIVAL OF DESIRABLE TREES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WATERSHED PROTECTION, LANDSCAPE BEAUTIFICATION, DUST AND POLLUTION CONTROL, NOISE REDUCTION, SHADE AND OTHER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES APPLIES /N TREE -INHABITED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES 3.39 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND CONSTRUCTION ACTIVITIES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEAL 7H 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 /N ACCORDANCE WITH THE VESCH. EROSION CONTROL LEGEND SA moo-- SAFETY FENCE 3.01 CE CONSTRUCTION ENTRANCE 3.02 CRS , J_.'-.l`1- f'= CONSTRUCTION ROAD STABILIZATION 303 SF X X-X- SILT FENCE 3.05 a INLET PROTECTION 3.07 CIP CULVERT INLET PROTECT70N 3.08 DD -00'- TEMPORARY DIVERSION DIKE 3.09 MPOR Y RIGHT-OF-WAY 3.11 ST 0 DI VERSN TEMPORARY SEDIMENT TRAP 3.13 SB O SEDIMENT BASIN 3.14 OP _--1 L` PIPE OUTLET PROTECT70N 3.18 CD ' CHECK DAM 3.20 TS__CD_ TS TEMPORARY SEEDING 3.31 PS--a- PS PERMANENT SEEDING 3.32 BM SOIL STABILIZATION BLANKET 3.36 O� TREE PROTECTION FENCING 3.38 OC__(OD_ OC DUST CONTROL 339 ;IT, VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK SPECIFICATION NUMBER 1. SET POSTS AND EXCAVATE A 4 X4" TRENCH UPSLOPE ALONG THE LINE OF POSTS. I 3 ATTACH THE FILTER FABRIC TO THE WIRE FENCE AND EXTEND T l T EROSION CONTROL NOTES: 1. THE PLAN APPROVING AUTHORITY MUST BE N077FIED ONE WEEK PRIOR TO THE PRE-CONS7RUC77ON CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING AC77WTY, AND ONE WEEK PRIOR TO THE FINAL INSPEC77ON. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. J. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS 07HER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL 77MES DURING LAND DISTURBING AC77VI77ES AND DURING S17E DEVELOPMENT UN77L FINAL STABILIZATION IS ACHIEVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FIL7ERING DEVICE. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. ALL FILL MA7ER/AL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS STUMPS WOOD, RUBBISH, AND OTHER DEBRIS. 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECT70N 5.1.28. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-JOI OF THE CODE OF ALBEMARLE. 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7, 00 AM TO 9: 00 PM. 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAT MAINTAINS LA7ERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE. 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACIL177ES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR 07HER PORTION OF THE PROPERTY. 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50150 MIX OF ANNUAL RYGRASS 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 80LBS1100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS11000SF, INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FER77L/ZER 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 957. KENTUCKY 31 OR TALL FESCUE AND 0-57 PERENNIAL RYGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 8OLBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE 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 REPAIRED IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 507 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 COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED IMMEDIATELY. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR. 21. THE El INSPECTOR HAS THE AUTHORITY TO ADD OR DELETE El CONTROLS AS NECESSARY IN THE FIELD AS SI7F CONDITIONS CHANGE. IN ADDITION, NO SEDIMENT BASIN OR TRAP CAN BE REMOVED WITHOUT WRITTEN AUTHORIZATION. SOIL DESCRIPTION: SOILS ON -SITE ARE CURRENTLY DISTURBED AS MASS GRADING HAS OCCURRED IN ACCORDANCE WITH WP0201700037. 27B-ELIOAK LOAM-2 TO 77 SLOPES. SOIL IS WELL DRAINED WITH A MEDIUM RUNOFF CLASSIFICATION. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0-8" THICK. THE DEPTH TO THE WATER TABLE IS C AM E GENERALLY MORE THAN 80". 27C-ELIOAK LOAM-7 TO 75% SLOPES. SOIL IS WELL DRAINED WITH A MEDIUM RUNOFF CLASSIFICATION. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0-8" THICK. THE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80 34C-GLENELG LOAM-7 TO 15Z SLOPES. SOIL IS WELL DRAINED WITH A MEDIUM RUNOFF CLASSIFICATION, SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0-8" THICK. THE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80". 34D-GLENELG LOAM-15 TO 25% SLOPES. SOIL IS WELL DRAINED WITH A HIGH RUNOFF CLASSIFICATION. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0-b"" THICK. THE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80". 39D-HAZEL LOAM-15 TO 257 SLOPES, SOIL IS EXCESSIVELY DRAINED WITH A MEDIUM RUNOFF CLASSIFICATION. SURFACE LAYER IS TYPICALLY LOAM AND ABOUT 0-10" THICK. THE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80". 95-WEHADKEE SILT LOAM-0 TO 27 SLOPES. SOIL IS POORLY DRAINED WITH A VERY HIGH RUNOFF CLASSIFICATION. SURFACE LAYER IS TYPICALLY SILT LOAM AND ABOUT 0-10" THICK. THE DEPTH TO THE WATER TABLE IS GENERALLY 0-30 REFERENCE: WEB SOIL SURVEY ONLINE DATABASE, FOUND AT h t tp: //websoil survey. nres. usda. go vlcppIWebSoilEurvey.ospx 2. STAPLE WIRE FENCING TO THE POSTS. 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. r e a+1-11 a 11 �2I s SI'r �1 u i z a o , a , :11 91 T � '�^a- e:a T - EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. ,WPER SILT FENC5 RE -BACK l WIRE -BACK .05- NO SCALE 1992 SAFETY FENCE PERSPECTIVE VIEW DESCRIPTION OF EROSION & SEDIMENT CONTROL MEASURES: EROSION AND SEDIMENT CONTROL MEASURES. IT IS ANTICIPATED TO USE A CONSTRUCTION ENTRANCE, RIPRAP, OUTLET PROTECTION, DIVERSIONS, SEDIMENT BASINS, AN EXISTING SEDIMENT TRAP, SOIL STABILIZATION BLANKETS, AND SILT FENCES TO CONTROL SURFACE DRAINAGE TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE ACTIVITIES. TEMPORARY STOCKPILE AREAS ARE NOT BE REQUIRED WITH THIS PROPOSED DESIGN. SHOULD FIELD ADJUSTMENTS NECESSITATE A SMALL STOCKPILE AREA, IT SHALL BE DISCUSSED WITH THE ESC INSPECTOR AHEAD OF TIME. THE STOCKPILE WILL NEED TO BE MAINTAINED AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL BE ON SITE AND SHALL BE STABILIZED WITH A TEMPORARY VEGETATIVE COVER. PERMANENT SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL NO LONGER BE EXCAVATED AND WHERE CONSTRUCTION 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 TIME 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 VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. 3.01 SAFETY FENCE- TO DISCOURAGE ACCESS TO A PARTICULAR AREA. 3.02 CONSTRUCTION ENTRANCE - TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. 3.03 CONSTRUCTION ROAD STABILIZATION - TO REDUCE THE EROSION OF TEMPORARY ROADBEDS BY CONSTRUCTION TRAFFIC AND TO REDUCE THE EROSION AND SUBSEQUENT REGARDING OF PERMANENT ROADBEDS BETWEEN THE TIME OF INITIAL GRADING AND FINAL STABILIZATION. CONSTRUCTION ROAD STABILIZATION WILL BE APPLIED TO THE CONTRACTOR PARKING & STAGING AREAS AS NEEDED. 305 SILT FENCE- SILT FENCE IS PROPOSED, WHERE SHOWN ON THE PLANS. 3.07 STORM DRAIN INLET PROTECTION- INLET PROTECTION IS PROPOSED ON INLETS, WHERE SHOWN ON THE PLANS. 3.09 DIVERSION- PERIMETER DIVERSIONS ARE PROPOSED WHERE SHOWN ON THE PLANS TO DIRECT RUNOFF INTO A SEDIMENT TRAPPING DEVICE. 3.13 SEDIMENT TRAP- SEDIMENT TRAP IS PROPOSED WHERE SHOWN ON THE PLANS 3.14 SEDIMENT BASIN- SEDIMENT BASINS ARE PROPOSED WHERE SHOWN ON THE PLANS. 3.18 OUTLET PR07FC77ON-OUTLET PROTECTION IS PROPOSED AT THE OUTLET OF PIPES. 3.19 RIPRAP- RIPRAP IS PROPOSED AT THE OUTLET OF PIPES. 3.32 PERMANENT SEEDING -PERMANENT SEEDING IS REQUIRED AND PROPOSED WITH THIS PLAN. 3.36 SOIL STABILIZATION BLANKETS & MATTING - SOIL STABILIZATION MATTING PROPOSED WITH THIS PLAN. SEE THE ESC PLAN FOR THE REQUIRED LOCATIONS. 3.38 TREE PRESERVATION AND PROTECTION- TREE PR07ECTION IS PROPOSED WITH THIS PLAN. SEE THE ESC PLAN FOR THE REQUIRED LOCATIONS. 3.39 DUST CONTROL -DUST CONTROL IS REQUIRED AND PROPOSED WITH THIS PLAN. 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 ATTENTION WILL BE GIVEN TO THE FOLLOWING ITEMS: a. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. I ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT WILL PREVENT PROPER DRAINAGE. IF 774E GRAVEL IS CLOGGED BY SEDIMENT, THE GRAVEL WILL BE REMOVED AND CLEANED, OR IT WILL BE REPLACED. c. ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSITION REACHED HALF WAY TO THE TOP OF THE BARRIER. d.ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. IN CASE OF EMERGENCY, THE PRIMARY CONTACT FOR THE PROJECT WILL BE THE RLD OR CONTRACTOR ON -SITE THE CONTRACTOR AT THIS 77ME IS DIGS. BROOK WOOD WITH DIGS MAY BE REACHED AT (434) 978-4435. IN ADDITION THE OWNER MAY BE CONTACTED. UPON COMPLETION OF THE PROJECT, THE OWNER WILL BE RESPONSIBLE FOR SITE MAINTENANCE. EROSION CONTROL NOTES: ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETA77VE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULAT70NS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. ES-2- THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-CONS7RUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. ES-J.-ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. ES-4.-A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON 7HE SITE AT ALL TIMES. ES-5:PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN THESE ON INDICATED SE D E 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 /S RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTAT70N AS DETERMINED BY THE PLAN APPROVING AUTHORITY. ES-7.-ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SI7E DEVELOPMENT UNTIL FINAL STABILIZAT70N 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. C PERSPECTIVE VIEW PERSPECTIVE VIEW PLASTIC FENCE METAL FENCE Source: Adapted from Conwed Plastics and VDOT Road and Bridge Standards 3.01 1992 Plate 3.01-1 EROSION CONTROL NOTES & NARRATIVE: PROJECT DESCRIPTION: THE PURPOSE OF THIS LAND DISTURBANCE ACTIVITY IS TO PROVIDE THE MASS GRADING AND ESC MEASURES FOR FUTURE RESIDENTIAL HOMES AND THEIR CORRESPONDING INFRASTRUCTURE. THIS PLAN IS AMENDMENT #2 OF THE APPROVED BROOKH/LL SECT70N 1 MASS GRADING, VIRGINIA STORMWATER MANAGEMENT PLAN AMENDMENT #I, KP020170003Z THIS AMENDMENT ADDS AN ADDITIONAL 8,90 ac. OF LAND DISTURBANCE TO THE APPROVED LIMIT OF DISTURBANCE LINE. THE PROJECT WILL BEGIN ITS CONSTRUCTION WITH THE PROPOSED ESC MEASURES IMMEDIATELY FOLLOWING PLAN APPROVAL, WHICH IS ANTICIPATED TO BE IN THE SPRING OF 2020. THE WORK IS AN7CIPATED TO BE COMPLETED WITHIN 18 MONTHS AND TO CONCLUDE IN THE FALL OF 2021. EXISTING SITE CONDI77ONS: THE AREA OF THE PROPOSED DEVELOPMENT IS LARGELY WOODED AREAS WITH OPEN SPACES AND LIGHT UNDERBRUSH. THIS S17E GENERALLY SLOPES FROM THE WEST TO THE EAST, AND HAS A DIVIDE AT THE MIDPOINT DRAINING TO B07H THE NORTH AND THE SOUTH. THE SITE IS GENERALLY STEEP AND IS WELL DRAINED. AN EXISTING, APPROVED SEDIMENT BASIN J4, AND SEDIMENT TRAP 4C ARE ON -SITE PER THE APPROVED PLANS, WPO201700037 AND WILL BE UTILIZED FOR THE MASS GRADING PLAN OF THIS SITE. ADJACENT AREAS,• 774IS SITE /S BORDERED TO THE EAST BY A STREAM PROPOSED TO BE PRESERVED. NORTH OF THE PROPOSED SITE IS BROOKHILL PROPERTY. WEST OF THE DEVELOPMENT /S STELLA ROAD, UNDER SDP 201700117, AND SOUTH IS SALAMANDER STREET. SILT FENCE WITH WIRE BACKING, DIVERSIONS, SEDIMENT BASINS, A SEDIMENT TRAP, INLET CONTROLS AND VARIOUS OTHER ESC MEASURES ARE PROPOSED TO LIMIT THE POTEN7AL FOR CONTAMINA77ON OF THESE ADJACENT PROPER77ES AND WATERWAYS. OFFSITE LAND DISTURBANCE.' OFFSITE LAND DISTURBANCE IS LIMITED TO PUBLIC RIGHT-OF-WAY AND AREAS LOCATED K17HIN THE OVERALL BROOKH/LL DEVELOPMENT BOUNDARY. SOILS.• SEE SOIL DESCRIPTIONS ON THIS PAGE. 774E EXIS77NG SOIL BOUNDARIES HAVE BEEN DISTURBED, AS THE PROJECT IS AN ACTIVE CONSTRUCTION SITE. CRITICAL AREAS' EXISTING WETLANDS AND INTERMITTENT STREAMS ARE LOCATED ON THE PROPERTY DOWNGRADIENT FROM THE PROPOSED DEVELOPMENT. THESE AREAS, IN ADD/TION TO THE MANAGED AND PRESERVED STEEP SLOPES, ARE CONSIDERED TO BE CRITICAL AREAS THE CONTRACTOR SHALL GIVE EXTRA ATTENTION AND CAUT70N /N AND AROUND THESE AREAS TO ENSURE SEDIMENT IS NOT DEPOSITED ON THEM OUTSIDE THE SCOPE OF THE PROPOSED PLAN. TREE PROTECTION FENCING, SILT FENCING, DIVERSIONS AND SEDIMENT TRAPPING DEVICES SHALL ALSO BE INSTALLED AS A FIRST STEP IN LAND DISTURBANCE TO ENSURE THESE CRI77CAL AREAS ARE MAINTAINED. SEQUENCE OF CONSTRUCTION: 1. CONTRACTOR SHALL N077FY THE ALBEMARLE COUNTY COMMUNITY DEVELOPMENT ENGINEERING DEPARTMENT TO SCHEDULE A PRE -CONSTRUCTION MEETING. 2. PRIOR TO DISTURBANCES, THE LIMITS OF DISTURBANCE AND PRESERVED SLOPES SHALL BE FLAGGED AND THE TREE PR07EC77ON FENCING SHALL BE INSTALLED. NO GRADING MAY BEGIN UN77L THE LIMITS OF DISTURBANCE AND PRESERVED SLOPES HAVE BEEN FLAGGED AND THE TREE PR07ECTI0N HAS BEEN INSTALLED. J. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM 774E INSPECTOR ON THE PROJECT. 4. INSTALLATION OF THE PROPOSED CONSTRUCTION ENTRANCE SHALL OCCUR NEXT. THE CONTRACTOR SHALL APPLY CONSTRUCT70N ROAD STABILZATION AS NEEDED. CONTRACTOR SHALL ENSURE THE CONSTRUCTION ENTRANCE DRAINS TO AN ADEQUATE E&S MEASURE. THE CONTRACTOR SHALL U77LIZE THE NEARBY SEDIMENT TRAP FOR VEHICULAR WASH OFF. CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY (VEHICULAR) TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD. SHALL BE CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. 5. THE INITIAL ESC CONSTRUCTION MEASURES, AS SHOWN DN THE PHASE I EROSION & SEDIMENT CONTROL PLAN, SHALL BE INSTALLED NEXT. THE CONTRACTOR SHALL BEGIN BY INSTALLING THE PERIMETER SILT FENCE. PERIMETER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCT70NAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. 6. ONCE 774E PERIMETER EROSION CONTROL MEASURES HAVE BEEN INSTALLED, AND THE COUNTY INSPECTOR HAS APPROVED THESE MEASURES, THE CONTRACTOR SHALL PROCEED TO REMOVAL OF THE EXISTING INTERIOR SUPER SILT FENCE ALONG THE OLD LIMI7S OF DISTURBANCE LINE, AND LIGHT CLEARING OF THE S17E. THE CONTRACTOR SHALL BEGIN BY CLEARING THE AREAS REQUIRED TO ACCESS THE LOCAT70NS OF SEDIMENT BASIN B, AND THE AREAS DESIGNATED AND/OR APPROVED BY THE INSPECTOR FOR CUT REQUIRED FOR THE BASIN INSTALLATION. INSTALLAT70N OF SEDIMENT BASIN B SHALL IMMEDIATELY FOLLOW THE SELEC77VE CLEARING. FOLLOWING THE INSTALLA7ON OF THESE MEASURES THE CONTRACTOR SHALL INSTALL THE DIVERSIONS. THE EXIS77NG DIVERSION DIRECTLY SOUTH OF THE BASIN B CUT SHALL BE ADJUSTED PER THE PLAN, TO MAINTAIN POSITIVE DRAINAGE TO THE EXISTING STORM DRAIN. ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THE PHASE I EROSION CONTROL PLAN SHALL ALSO BE CONSTRUCTED AT THIS TIME. 7. ONCE ALL THE PHASE I EROSION CONTROL 17EMS HAVE BEEN INSTALLED & ARE OPERATIONAL, DRAINAGE IS PROPERLY CONVEYED TO THESE MEASURES, AND THE ESC INSPECTOR HAS GRANTED APPROVAL, THE CONTRACTOR CAN BEGIN CLEARING THE REMAINDER OF THE SITE. TEMPORARY SEEDING, PERMANENT SEEDING AND DUST CONTROL SHALL BE IMPLEMENTED AS REQUIRED. 8. AFTER CLEARING THE PROPOSED AREAS, THE CONTRACTOR CAN PROCEED TO PHASE Il OF THE EROSION & SEDIMENT CONTROL PLAN. UPON INSPECTOR APPROVAL, THE EXISTING SEDIMENT TRAP 4C CAN BE REMOVED. THE CONTRACTOR SHALL BEGIN ROUGH GRADING THE SI7F TO THE CONTOURS SHOWN ON THE PHASE Il EROSION & SEDIMENT CONTROL PLAN. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE 9. THE CONTRACTOR SHALL INSTALL ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THE PHASE ll EROSION CONTROL PLAN. 7EMPORARY SEEDING, PERMANENT SEEDING AND DUST CONTROL SHALL BE IMPLEMENTED AS REQUIRED. 10. PERMANENT OR TEMPORARY SOIL STABILIZA7ON SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE /S REACHED ON ANY PORTION OF THE SITE TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 11. THE CONTRACTOR SHALL MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN 7HE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR /N ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 12. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SI7E STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND 774E DISTURBED SOIL AREAS RESUL77NG FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. GENERAL SLOPE (3:1 OR LESS). PER ACRE TOTT 3.11 Pared construction entrance for erosion control plans Source: Va. DSWC Plate 3.11-1 KENTUCKY 31 FESCUE COMPLETION 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 2 SEEDINGS TO BE MULCHED IMMEDIATELY VESCH STD. 3.32. UPON Source: Va. DSWC OF SEED APPLICATION, IN ACCORDANCE W/ VESCH STD 3.35. TAaI.£. 3111.9 lIl PERMANENT SEEDING SCHEDULE ACCEPTAau IYMFORART mm`V G Ill MATERIALS •PUICR R IY 111 E FOR ALL REGIuuS• Ram{nr n.,.. Rme Us Lb, Ill Sept. 1 - Feb. U 50/50 M4.r Annual Rlegraa III lti-0muml 'l e Sn - an Coll lR1c Isi lerenalel Feb. I6-AM. 50 Aiwul Ryeyas 60. 1W (][Ail it 11 nml M, I -A, 31 Gil bull. 50 Souse: it DSWC e ii, arma o . Ri,. is i �:.-. . f Er.�t� :!!i < :4`• r,�: PROFIL ::ONSr4I:710N ASPI I PAVED ACCC " WASHRACK EXISTING 1I 'IT �. PAVEMENT 1 z� 12' Mill, - 11' I ` -MUST EXTEND FULL WIDTHL l i -PDSRN[ DR NAG E TO SEDIMENT _1INGRESS AND EGRESS TRAPPING DEVICE DPERATIDN ELM jam- 12 WN C DRA1lYG - {TO TO SEDIMENT SE TRAPPING DEVICE '_'FR CLOTHS -- - SECTION A -A A nu mmmL wain tap of I mill aul be III. lallc(I Taal a nmwmlm 1 mill ballil I. cl dofiral'e NuPlIll a W 141 ho a aril a 1laulLia (If 1 e 11I 101 XIVI le LOINIal11 ple.K.'al . WaBl Watet 1tHIA be Lamed auNBc foul llle etblMlc a fo xI appl oeed Realm -- at ea to Innoce xeduuatl .all se(Wuad >hall be pt a ,fait vl law edamastofm chalul ditches of walacotnse5. PAVED WASH RAC4C NO SCALE (STD. & SPEC. 3.32 OF VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK, 3RD ED.) FBRER FABRIC ENTRENCIIIED a' COIBACfEO SOIL� 9 Mail.I _I�I __ II= III III ILL= HJ - j- I-I l u l I)I-ID I I �1 H fII l-I SB' 111 �I1-Il J III III -III II Irll- I L � LIT_- 1-. 1211 L-T ➢TI III III I 11= 61-I I I I G.- I II IL-,II-III-11 - - �DIUY a, DD TEMPORARY 18" DIVERSION BERM 1992 3.38 Source: Va. DSWC Plate 3.3&2 Lic. No. 035791 08/04/20 Z z O a U w 0 O 2 � In Qz_J O H ''ww An > � z Vl � `m LU ce LID z w f 0 U z 0 0 N_ M w o. In z 5 0 w In w ce w o 0 0 !lo In v N t\a W QuIll T_ r'� J (_ zC� N z ® m ~ W Ill- 0 0 (I I W roo 10 N I... WW\ 0')/ N (I'') i_ W N V Q W ran c w V / Q z J Q z C ' ^ G VJ LU L9 j O O 11 fz z z��O0. � W � z Y U O � LL U l z W'. J z I W l = W 1111J w Of NN z LJ� O O ttttJ < 0 C/, I 0N co W U _1 U I- I I LU JOB NO. 182150 SCALE N/A SHEET NO. 3 —` NOTE: —� THIS EROSION AND SEDIMENT CONTROL PLAN IS AMENDMENT #2 TO THE APPROVED BROOKHILL SECTION 1 MASS GRADING VIRGINIA STORMWATER MANAGEMENT PLAN AMENDMENT #1 BY BOHLER ENGINEERING, WP0201700037. EXISTING SEDIMENT BASIN #4 IS APPROVED AND CURRENTLY IN USE ON SITE. THIS PROPOSED AMENDMENT SHALL UTILIZE THIS BASIN TO TREAT A REDUCED DRAINAGE AREA FROM THE APPROVED PLAN (16.02 ACRES VERSUS THE APPROVED 16.18 ACRES), AND EXPAND UPON THE APPROVED PLAN WITH THE ADDITION OF PROPOSED SEDIMENT BASIN 8, TO TREAT SHEETS 7 & 11 DISTURBANCE IN THE NORTHERN PORTION OF THE TOWN CENTER PROJECT. F II AREA OF NEW DISTURBANCE PROPOSED WITH THIS AMENDMENT #2 AREA OF EXISTING DISTURBANCE APPROVED WITH WP0201700037 AMENDMENT #1 j - L_ I IEETS 5 & 9 \ \ o. NOTE: THE LIMITS OF DISTURBANCE FOR THIS PROJECT SHALL BE LOCATED ALONG THE SILT FENCE INSTALLED AROUND THE PERIMETER OF THE PROJECT SITE. THE SILT FENCE IS LOCATED 6' OFF THE LIMITS OF DISTURBANCE AND A MINIMUM OF 6' FROM THE PRESERVED SLOPES. THE TREE PROTECTION FENCING SHALL BE INSTALLED ALONG THE BACK SIDE OF THE SILT FENCE. A / O O SHEETS 8 & 12 00 0®�OO o000 ® oO0Oo �00 s � 10 / \ 0 \ o r \ O 0 o � 1 � o 00 � d0 �0 0 0 / 0 0 o o' o AREA TO BE REGRADED 0 00 AS NECESSARY TO \ ENSURE A MINIMUM OF 2:1 SLOPES ALONG EXISTING BANK 0O \ EXISTING SUMP (APPROVED WITH PREVIOUS WP02017-00037 APPROVALS) TO REMAIN - SEE SHEET 6 & SHEET 10 O �\ OO - _ 00 \ - - \ - a ! 0 0 i � A A i 1 \ I II APPROVED \ EXISTING le; I SEDIMENT 0 \ 1I BASIN 4 00 01 i lI �i h !i.11��;��/��,i'%i-ice.. t7 Lic. No. 035791.1, 06/25/20 �4 �SIONAL Z Z z O u w oIn Z O _ m L J Q < O w z F�1 ui f Lu w M N z z w M 0 Lu N w 2 W N (D a w W > LL V) O J Q (> C W W G O w Lu O Q z z z�o< i--q Y U o w � r^ H U) V / Z O 1- J U z w�z I� Z w U) = J w W 111 J Q O 06 CD W _O O oN m v' u' H � w w w a � JOB NO. 182150 SCALE 1 "=60' SHEET NO. 4 N `L FUEL IN THE EVENT OF A SPILL. CONTRACTOR SHALL J ^ N ENSURE VOLUME CAPACITY IS 10% LARGER THAN THE A ■ ■ ■ ■ ■ I \ LLI MAXIMUM VOLUME OF STORED FUEL. ■ ■ ■ ■ ■ ■ PHASE I♦� ' ■ `;_, DRAINAGE DIVIDE ■ EXISTING \ �_ T ■ v, APPROVED ■ M U DIVERSION DIKE ■ MATCHLINE, SEE SHEET 7 ss s l —SITE , °-t�8-_ - EXISTING A ESSED FROM THIS �� APPROVED LOCA ION ON STELLA LANE ACCESS \ ��� / ■ PHASE I DRAINAGE RAET AE iSS SUPER SILT FENCE WITHIN PROPOSEXISTING ED EXPANDED LIMIT OF DISTURBANCE AREA TO BE RELOCATED TO BOUNDARY OF NEW LIMIT OF DISTURBANCE LINE PER THIS PLAN ■ \ PROPOSED NEW to■■■■■■■■■■■■■■■■■■■■■■■■■■■..... LIMITS OF n♦♦♦♦♦♦ DISTURB NCE, � EXISTING APPROVED LIMITS SSF PROPOSED OF DISTURBANCE eD C F WITH WIRE �. I v(3ACKING U, � e � PROPOSED •. EXPANDED LIMITS OF DISTURBANCE AREA �. ESC ®� PHASE I SEDIMENT 7 BASIN 4 16.02 ac. ° i r l —MM N T ■ N TI ■ :A .4'� V1 \ ■ x• ■ N -- - - - - SSF SSF— ° - -- - - - �� --- --- - ---- - S SSF7SSF—SSE T '. i... F SSF_— F _SSF —SSF _ _ • • n � .p e 9 • °i S.. D ° s 5-qq p i n,AB _ — — — — PROPOSED — (SF SF WITH WIRE w w w w w w w w w w W W TTtt V F W s fn D I ,I �/ BacKING SALAMANDER STREET Of GRAPHIC' SALE �� APPROVED EXISTING d� 1 OF DISTURBANCE EXISTINGrk 31 o s ao eo zo A PROVED SUPE� ILT FENCE TO REMAIN o lJ ( IN FEET) \ y J 1 inch = 30 ft. ` - " 7 �GZ SCOTT R. LINS'z Lic. No. 035791 ,7�- p 08/04/20 0Aj Llslh �6 V) z w as 0 U U-) (D ~ Z z w w g w C) Z U z C7 O J w U Z U N O 0 (n W M z J J 0 Q Q Z w a 1 V) w m 2-- U) �..� 0 W Q � w 1 W <> 0 a w ce o Lei. o 1 U) > / _ w 10 - / 1 0 0 0 ~ kD n v 1 1� L M 0 1� ZNz 1 0 d i 1 o z W N 1 � a- W > (� o 1 L Cn i/ Q Z > O MU / w U W o i0 Z> w 1� Z = O o o EXISTING �r■■■■■■■■■■■■■� H W Ul APPROVED----,— ! O DIVERSION DIKE .� U) \,/ J Of LLJ W J — A♦• Z uj W J V) -------------- � ■ 000 • .SSF SSF -SSF—. SF - SSF F—SSF—SSF SS�� $SF SS SSF SSF SSF SSF c' " SS SS ` S r w � n r O J O SSF PROPOSED SF WITH WIRE O O BACKING C:) N w J H H r n W_ JOB NO. KEY 182150 SCALE 1 "=30' SHEET NO. 5 1 ROPOSED SF I I I I I III MUWITH E BACKING I I I I I 0. SCOTT R. LLINS� I I j PROPOSED TREE PROTECTION U Lic. No. 035791 FENCING TO BE INSTALLED ■i I I I I I I I I - PROPOSED ALONG LIMITS OF DISTURBANCE d�o� 08/04/20 EXISTING, APPRO I I I EXPANDED LIMITS LINE TO PROTECT PROPOSED SIONAL DD DIVERSION DIKE I I I I I I I I I TREELINE ` O OF DISTURBANCE (TO BE MODIFIED) I I I I AREA MATCHLINE, SEE SHEET :IIII' I II I I! �� �II�II�II�II��I�II�II�II�I II�II�II�II�II��II� 0° w PROPOSED ADJUSTMENT TO EXISTING DD DIVERSION DIKE FOR SEDIMENT I I I I I SSF ` O Ln z BASIN B TIE IN CONTOURS ■ I I I I I I I I I SSF III i III I \ w I: II'' I'll I IIIIII SSF © o / ` U NOTE: THE EXISTING SLOPES IN THIS AREA SHALL I I I I I I I I I I I I �ssF� s� - z W z ssF BE FIELD -VERIFIED TO ENSURE A 2:1 (MAX.) I I I I I ! �ssF ssF OO /)l GRADE EXISTS ON THE BANK. THIS AREA SHALL I I IIII F z o 3 BE RE -STABILIZED IF GRADING MODIFICATIONS I I I I ! —_— PROPOSED EXPANDED �O z z N ARE NEEDED TO ACHIEVE A 2:1 (MAX.) SLOPE. I I LIMITS OF ♦ \ o W z S SUMP AROUND STORM INLET I — -- DISTURBANCE \ a 00 PROPOSED UNDER SEPARATE SET N OO m o N s OF PLANS \ Z w v O OO¢¢ � o EXISTING STORM �— J ~ � Lu CTRI IrTI IRF4 FPnM . - �_ - \ - - - /lV)1 `� \ ~ > z. m a ' APPROVED WPO PLAN � I — —� --- g w TO REMAIN N EXISTING, APPROVED OO ` ~ w EXISTING STORM INLET SUPER SILT FENCE TO O > w o RECEIVES FLOW FROM I REMAIN W EXISTING DIVERSION O. w o • DIKES AND CONVEYS TO N --__EXISTING SEDIMENT I - O ` w 1 ---BASIN #4 �' Q w 1 � --- _ — — I o ..�•••• ■.-.I 1 ISTING, APPROVED LIMITS OF ° DISTURBANCE LINE w N N rlj N v v -372 P. 1 • - �— — ! _ -00 WETLANDS, ----- ETL DS o 1 — • O 1 I • I _ I I I I I III � �I �' � ---- ' ■ � � � ��M • � DD EXISTING • APPROVED I I I I I e 07 1 ♦ I I ♦ �� ° 1 v� • DIVERSION DIKE ♦ I I I M ' IIII�Ij �! IIII �� I �i�� �I ■ I z o • �IIII�IIII�II II I �' I II LLj i Ln1 111•11 1 I I I I ��' • C0 V 1 I TS M , EXISTING, \ W ( APPROVED I o SEDIMENT, BASIN #4 _ Q a lit '` -�. Cz a Q - _ 11s • v Lu u �. ■.■■�� �.■.MEMO- MMMMwM*sw IIIIan..NONE 8 1♦ — ® Ul D D � 0 W u �� - - - • w J - ♦1� A �� i ♦♦• Lu z 1 U)z --__-_ =SSF 11 ♦ I I \ ♦♦ / \ ' C / o y \I� sF sF lL —Ss� ssF—SSF -- % Y ♦ \ — W ssp >� I ssF— sSF SSF I _ SSF � _— / • �` � � � ♦♦ � � �o � ssF PROPOSED SAL�k'P4NDER �( ssF� / / �__ ' I �I o L.L SF ai SIRE NSTREEWITH \�I s i I ° ° ... . . . s • n ! I ti E U 0 0 w GRAPHIC SCALE �� �\�/ I �� a � � JOB NO. o \� , . � � I _fF EXISTING �°� �'- �� - � — - , � _�- 182150 o SILT FENCE — �� - ao o is ao so izo - - - - - __ -�� ®, Ei� VI APPROVED SUPER _ �� K o �� 1 SCALE30, ( IN FEET) - EXISTING - 1 inch = 30 ft. �l���� - - JAPPROVED TREE O — SHEET No. a y - PROTECTION / 6 FENCING � GRAPHIC SCALE UO4/2 30 0 15 30 60 120 FENCING. ` -(7TP PROPOSE / REE PROTECION \ — ( IN FEET� 1 inch = 30 ft. u1U1 - p - i s PROPOSED NEW - _ - - - � S, --'V - LIMITS OF - - - - - w DISTURBANCE -- — ASs - - - _ - - �. SS � O SSF PROPOSED -- -- - w 1 li — K Lu SF WITH WIRE w T BACKING ` z o 0 J w z - �� son ■■■■-■0■■■��• ! S/�S �- 0 Q z -- PROPOSED ♦♦ SS/ \ ` o cr o �• EXPANDED LIMITS ♦♦ II / N d PROPOSED FLAT VDOT CLASS Al COARSE AGGREGATE Yi1 m O N \ I ♦ OF DISTURBANCE ♦♦1 ASS N OF OUTLET PROTECTION W/ GEOTEXTILE FILTER FABRIC o of w \ • AREA ` I� \ \ UNDERLAYMENT. FABRIC TO BE KEYED INTO EX. GROUND 9" z a < Ce �J I EXISTING APPROVED SUPER ♦. MIN. AT ENDS & ALONG PERIMETER. FABRIC TO OVERLAP A o a Lu \ v\ PER N - ` PROPOSED MIN. OF9" (L=33'; W1=4'; W2=15', D=18" MIN.) ''AA j z m a �. SILT FENCE WITHIN PROPOSED ♦♦♦ LIMITS OF SSF SW WIRE GRE�NP AY RR (A ¢ z EXPANDED LIMIT OF \ Z- ICI N g DISTURBANCE ACKING _ DISTURBANCE AREA TO BE , ♦ � � I 1 a o RELOCATED TO BOUNDARY OF C�71' \ - ` / W ¢ > NEW LIMIT OF DISTURBANCE LINE PER THIS PLAN ® 3s5 �s5 _ i n^ s 0 Ce SS�-1 \SSS ` - I a EXISTING •♦ s\ S - � ASS j55 � � - \ _ Sss ` 1 N _ Lu ASS �` ASS - - _ ASS Lu Ce u APPROVED LIMITS \�Ss\ T OF DISTURBANCE P� ,I■■■■■■ ■■_�■f■■�■ ■■■■■�■-■■■■■� . S \ � BSc LL - PROP SED 18 s u DIVERSION. CONTRACTOR ` ♦ ♦s L `ss� SHALL ENSURE POSITIVE ♦♦�� - ss ire �' SLOPE IS MAINTAINED_. M o 0 0 BERM SHALL BEILA k STABILIZED AS A FIRST o r CD STEP IN DISTURBANCE: 1 PROPOSED 18" DIVERSION. CONTRACTOR E SHALL ENSURE POSITIVE O SLOPE IS MAINTAINED. Lu- BERM SHALL BE r n STABILIZED AS A FIRST \ M v I I � \ STEP IN DISTURBANCE. EXISTINGco APPROVED \ O Z l DIVERSION DIKE _ _ _ = N I � Q i I T Q CONTRACTOR SHALL S BB R W DIVERSION - N I R WD / 0 ACROSS THE � Z O CONSTRUCTION ENTRANCE. C ( � PROPOSED PAVED �/ W N V J - CE CONSTRUCTION ENTRANCE v 12 x70' MIN. w WASH RACK J &DOWN GRADIENT DIVERSION � � I > �/ / p ji & SEDIMENT TRAPPING DEVICE - B M W / /'� � of � J ` \ - J Q z O - - -- - - EXISTING APPROVED SUPER B M F _ LU i SILT FENCE WITHIN PROPOSED w - P EXPANDED LIMIT OF DISTURBANCE AREA TO BE LLJ -_ - RELOCATED TO BOUNDARY OF �j B _ V J � Q Z o + NEW LIMIT OF DISTURBANCE T ❑ LINE PER THIS PLAN = o L1J EXISTING - u ' APPROVED LIMITS OF DISTURBANCE - M U ' _ ' 06 1 \ - _ w z �■■■■■■■■■■■ ♦ ESC (� Q PROPOSED ---------- --- Y ■ CRS CONTRACTOR PHASE I --- -- - - - w w F v5 LOCATION OF PARKING & rri \\ ' o PORTA-POTTIES ♦♦♦ STAGING AREA SEDIMENT �j ♦ BASIN B ul U) Lu F ■ ♦♦1♦ 7.61 ac. w � : w ■ LOCATION OF 15cyLLI DUMPSTER ♦♦♦ - / LL1 J Lu l!1 I �I I ♦ ♦ r r ♦ EXISTING APPROVED SEDIMENT TRAP 4C - _ _ _ ♦ Lu ■ THE FUELING TANK SHALL BE COMPLETELY ♦♦ (DRAINS TO PROPOSED SEDIMENT BASIN B) - --- _ _-- u - • SURROUNDED BY A 2' DEEP, 2' WIDE EARTHEN BERM ♦♦----------- / Q O WITH A HEAVY MIL POLYETHYLENE LINING OR BE ` Q ■ LOCATION OFOPEN-TOP♦ I Q O PLACED IN AN IMPERVIOUS DUMPSTER. ♦ PROPOSED STOCKPILE ■ FUELING AREA ♦ 0 THE PROPOSED BERM OR DUMPSTER SHALL CONTAIN ♦ SURROUNDED BY N ■ FUEL IN THE EVENT OF A SPILL. CONTRACTOR SHALL ♦♦ cn - ��� - -SILT FENCE � O ' ENSURE VOLUME CAPACITY IS 10% LARGER THAN THE ■ O i MAXIMUM VOLUME OF STORED FUEL. PHASE I • ■ • ■ • '• �! ■ ■ - ``•��•• N ' DRAINAGE - -_ I I ■ I DIVIDE _ - ■� ■� ■ �L�•• _- F i ■ EXISTING u F N ■ APPROVED - Lu v E ■ M U DIVERSION DIKE - 0 0- v .; r'.; ■ - JOB NO. 7 ♦ `` MATCHLINE, SEE SHEET 5 KE182150 Y e / - °,. ♦♦" SCALE F ♦♦ ' - - i 1 "=30' /- _ • �SS • ♦♦♦ ' _ _ _ _ _ SHEET NO. r'. m ASS �.. y v / /00 0FG CODSCOTT R. LINS �Z _ L) Lic. No. 035791 � 0 �08/04/20 O 1� z ® 10NAL ECG w z y \ w O y y 0 MAPPED OO ° FLOODPLAIN, TYP. - GRAPHIC SCALE O z o 30 0 15 30 60 120 +' ' z W o \y Y o y a yy W Xy z LIMITS OF O - ( IN FEET w m v s STREAM, TYP. O 1 inch = 30 o k o a -- - y z" U z o m O O O O V) P PROPOSED FLAT VDOT CLASS Al COARSE AGGREGATE - _ O �}� rj o m OUTLET PROTECTION w/ GEOTEXTILE FILTER FABRIC z J o UNDERLAYMENT. FABRIC TO BE KEYED INTO EX. GROUND 9" ------ to ,W 0- Mill .3 ENDS & ALONG PERIMETER. FABRIC TO OVERLAP A �� O - - OO \ 1"1 MIN. OF 9" (L=33', W1=4, W2=15', D=18" MIN.) ,A > mLn ° OO v U g Y RR _ )- ` N to a ° Lu PROPOSED 175.66' PRESERVED O Lu OF 015" CL. III RCP-- �— ; p � ° STEEP SLOPES, ` � @ 1.14% w/ VDOT TYP. O W ¢ w ` y n— S— - STD. EW 1 O r O SI 1 . - Lu PROPOSED 100' WIDE VDOT CL. AI RIPRAP N LINED EMERGENCY SPILLWAY CREST w ELEV=396.66'. SPILLWAY TO HAVE 4:1 � O / ` c y SIDE SLOPES FOR VEHICULAR L d I --- TRANSITIONS. ` �� v 10'-WIDE TOP O �_ � o . - OF DAM «, n ELEV.=398'n�i N JSSS��SS �dSS 11 N o qss� � �'` — � � �,/ \ys � PROPOSED SUPER O � y dsS�SS SILT FENCE 950 L.F. SSF -- 101L.F. \ RC MU \ s o ss�ss�� s M ass ass �s Z Z 0 In r/ ♦ O ° _ LL ♦ a B B ss N �/ Z a rn rrnn Q OPENING) TO SERVE AS 048 ESC RISER STRUCTURE. RISER > O PROPOSED VDOT STD. B-1 (048 REINFORCED CONCRETE I TO INCLUDE A CONCRETE FOUNDATION & TRASHRACK. SEE I o B M SWM DETAIL SHEET FOR FOUNDATION &TRASHRACK ♦ �J J _c SPECIFICATIONS, SEE SHEET 13 FOR VDOT STD. B-1 DETAIL - / & VDOT STD. MH 1 DETAIL FOR THE ESC RISER CONVERSION. J z - ESC RISER RIM ELEV.=395.66' WITH DEWATERING ORIFICE S I > O o AT 392.3'. SEDIMENT BASIN CLEANOUT ELEVATION-=-390.98'. ♦ " U (n U B M ROUND -PROPOSTHE RISER TO BE CONSTRUCTED AT THE 2'WIDE PROTECTIVE SWM BARRIER• XIFENCE TOPBE REMOVED AND PROVED SUPER ILT s I w TIME OF THE RISER STRUCTURE's CONVERSION �� RELOCATED TO BOUNDARY OF NEW CO O Ti W o N PROPOSED SAFETY FENCE, -- INSTALL SIGNS "WARNING TO A PERMANENT SWM RISER. SEETHE SW"LAN PROPOSED LIMITS OF DISTURBANCE 1 J C o - QUICK SAND, KEEP OUT" FOR SWM BARRIER DETAILS. LINE PER THIS PLAN _ s �•. a I � � z - It EXISTING, APPROVED . ��► N � I OLu LIMITS OF DISTURBANCE W PROPOSED T p� W �• EXPANDED LIMITS S _ — OF DISTURBANCE* Y ( z AREA O I w O o T A o Ln Z) 0 E 0 ° U I Q LLI I u~) _ =z - . ■ ` S� . PROPOSED 0 0 /♦�• •• - - ♦�� ♦ - • • / DILIMITS STURBAOF NCE / O L1J o ROPOSED SF CD LL ° x A \ N W M U WITH WARE O ■ BACKING = / O J N PROPOSED TREE PROTECTION I w � E ■ j ° FENCING TO BE INSTALLED p w DD EXISTING, APPRO PROPOSED = ALONG LIMITS OF DISTURBANCE' 0- o EXPANDED LIMITS / LINE TO PROTECT PROPOSED JOB No. O DIVERSION DIKE (TO BE MODIFIED) ■ _ -- OF DISTURBANCE / TREELINE ` O 182150 0 AREA MATCHLINE SEE SHEET 6 ■ �I KEY SCALE ° PROPOSED ADJUSTMENT TO EXISTING ■ j IT`� __ F / 1 - 30' ° I I i i I I I I 5� � DD DIVERSIONFOR B TIE INWSEDIMENT CONTOURS ° I c ■ j 'r�SF , - SHEET NO. n ■ j j � I j l l / - ---- m i � I I i 55F it N FUEL IN TH SPILL. CONTRACTOR SHALL J I I ENSURE VOLUME CAPACI IS 10% LARGER THAN THE 1 LLJ MAXIMUM VOLUME OF S UEL. n ° MATCHLINE, SEE SHEET 11 G - PROPOSED STOCKPILE SURROUNDED BY SILT FENCE G11 SCOTTR. LINS� Lic. No. 0357911� 08/04/20 _ 5 PROPOSED PHASE II MASS F s GRADING CONTOURS 0 J O m ° � � ♦ Z Z o w i /\ • z OU _ � z z h V ■■!! u x o m v■�!!!■■!!■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■!■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■!■■■■■■■■■■■■■■■■■■■■■■■■■ z w ?off y O O cn w rn z J J U 0 Q Q 5 5 5 5 5 5 VD S 5 ef a - ■ 1 W Q > ,o ce O � to •L /�r(�JSS ■ Q O JJJJ , W 5 ■ MU w / ■ r a L „ • 10 DITCH ASSOCIATED WITH ICE RINK - PROJECT, CONVEYS OVERLAND FLOW ° AROUND PROJECT AND INTO ' / F \ o o O N m 0 EXISTING STORM SEWER — N ESC � o �I ♦ PHASE II 44, _ 4 m PROPOSED NE w SEDIMENT aaz - E LIMITS OF T' 44640 DISTURB NCE;i ♦ BASIN 4 ' ? EXISTING .. I ! 13.08 ac. j'I' I ° ♦ APPROVED LIMITS ys 'SSF PROP ♦ OF DISTURBANCE L9 O = SF WITH WIRE ♦ Q C _ BACKING I I V TT Z N Z o � s ♦ M 3 L, e o ♦ PROPOSED _ (N n EXPANDED LIMITS O ICE RIN ARCEL PROPOSED U ER u OF DISTURBANCE CT) i S ARATE SET OF PLANS 0 i ♦ AREA N I N ♦ /� z Q . � ♦� I ;� I W w � �o �\ ZJl< ■_ ' O 6 ------------ W z a -- - -- -- ■ --- --- - - ~ - U 0 z 3 �� Z i p z w U ■ C G I � / I z l n —iE P Lu ��^�x( \ _ — 06 II IZ z py hb vl / � o •, � � ♦ I w ♦ w J Z N DD PROPOSCD ED O / - - ♦�■■■■■■■■ \ OADJUSTMENTTO _- �� w — ■ ■ ! ■ ■_lt PERIMETER DIVERSION w L■!o■ _ - v ■�■�■■■■■■■■!!!■■■ ■s __ -_ - —MANEJWWM - _ m _. — — _ __- ice- L _IL Lu - _ __ _ a _ . _-- • • eP . e �— s s s s L S - L: - Y _ W o n e —° e . ° P / — - -- -�- P \ o - -- PROPOSED II SSF SF WITH WIRE Q O --- >�/ � BACKING (� / SALAMANDER ssF PROPOSED _ O �- ---- y STREET / ARE o BACKING N P / - — - - ° I \ O o V d to 7 JOB NO. GRAPHIC SCALE APPROVED �, _ ��182150 0 KEY OF DISTURBANCE EXISTING / �� - SCALE 3 0 15 30 60 120 O A PROVED SUPER 1 n _3<7 a I c LT FENCE TO A � REMAIN SHEET mo ( IN FEET) EET NO. n z 1 inch = 30 ft. \ 9 u, < FUEL IN THE Ic SPILL. CONTRACTOR SHALL J J T I ENSURE VOLUME CAPACI IS 10 /o LARGER THAN THE LLJ : MAXIMUM VOLUME OF S FUEL. 1 I ■ ' w J) p M� o \ i, ■ e � � s� T ■ ■ MATCHLINE, SEE SHEET 11 ST f SSF ■ SSF i I I T IN ■ ■ I . O P PROPOSED NEW N LIMITS OF DISTURB NCEi r / cn EXISTING APPROVED LIMITS SSF PROPN ED OF DISTURBANCE F WIT IRE AC G X ROW / N IPROPOSED p N : EXPANDED LIMITS F \ N OF DISTURBANCE AREA I 1 PROPOSED STOCKPILE SURROUNDED BY SILT FENCE ti Lic. No. 035791 �` S08/04/20� 1SIONAL taw PROPOSED PHASE II MASS GRADING CONTOURS o U n C9 ~ Z Z w I � � w g w O Z U Z U' O J w Q 0 ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■,■■■■■■■■■■■■■■■■■■■■■■■� ■ {/Z) w mU w U Oof rl O ¢ W M Q LO F w 1 I zQLn Z - �••� V 3 W � W 1 W 0� \\\y\ ¢ W O _ F— y Ln 1 W _I DITCH ASSOCIATED WITH ICE RINK PROJECT, CONVEYS OVERLAND FLOW AROUND PROJECT AND INTO H EXISTING STORM SEWER - ¢ D v V O N ko co ESC - 442 PHASE III 442 SEDIMENT 440 140 BASIN 4 13.08 ac. rn T P 0 M V OA AA �� ce) o Q 04 ICE RINK ARCEL PROPOSED UNDER S ARATE SET OF PLANS ' _ N • \ Q P J V, MU Z ■ -- - -- - - - - - 1 o O i s P s s 1 Z O W — O ® ® ® ® ® ® ® ® ®' ® ® ® ® ® f® - v U Lu � • I � I I I I I II II II II n I I II II II II p I I , I I I I I I I I I I I PS Q IP 1 II II II II p II II II II — P I — W off I p II tl L7 Ih II Ih II Ih II h — h ly — tl II n II II II II II U II II II II II II II II �/� L--- �---L--- �---L--- v/ A II II BUII,IbING #1 I II o u I I I BUILpING #2 I I / � — l , � n •- I Y II II II II " I I I I I „ -• S 18 APARTMENT UN TS o u 14 APARTMENT UNITS W Ln it 7r 1r T �I — 7— �_ 1 / I W II II II II II II II II II II II (ry N II II II II II P III Z LL • I u '. ^ Lu i n u u u u u /- • J U) EMLEIL — ■ ■ ONE" ■ ■ ■■. ■ — O p ptr ��CpCpC� Cp XLIIII[- , , 1 N "J —SSF- - —. e_._ __ 5 -.J11 v o n. ■ ��hlL _ _ Jy .. n. — ,�0. . P 1 W , , F S ' , e C/1 _ ,/ PROPOSED / RWD -- - -- --- - _ 2 • P Y SSF SF WITH WIRE BACKING PROPOSED _SALAMANDER �' C STREET SF WITH WIRE O SSr - - BACKING 0 N l� r / • �- • \ Al,j _ Lu W \ I d JOB NO. EXISTING �� 182150 GRAPHIC SCALE APPROVED LIMITS KEY a o is ao eo izo EXISTING I SCALE \' IME ME ME 7 ILT FENCL TO \ II OF DISTURBANCE PROVED SUPER 1 „= 30 IREMAIN IN FEET) I � � SHEETANO. d - ', y � 1 inch = 30 ft. � Cy L PROPOSED NEW - LIMITS OF DISTURBANCE SSF PROPOSED SF WITH WIRE BACKING FUEL IN THE SPILL. CONTRACTOR SHALL ENSURE VOLUME CAPACI IS 10% LARGER THAN THE I P MAXIMUM VOLUME OF S UEL. 1�\ �� TH oA � O SCOTT R. LLINS� T ■ _ _ _ _ L� Lie. No. 035791,1, u _ ---- - ° 08/04/20 �� o� \P : PROPOSED STOCKPILE �SSIONAL V��� \ . SST SURROUNDED BY SILT FENCE , �sSF t l l� l l� l l� l l� l l I I t• I I t! I I� I I� I I t! I I t• I I t! I I t! I I� I I t! I I� I I t! I I I ■ MATCHLINE, SEE SHEET 11 - - - SSF �s�F PROPOSED PHASE II MASS s s� s GRADING CONTOURS s L wl ■ O i - III„yI_ �. ■ ¢ i■t! ■■■■■■■I■■■■■■■■■■■■■■■■■■■■■���� Z z w mi ■� ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ ■■■■■■■■■■■■■■■■■■ ■■■■■■ ■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■■ o V)L �" Z Q [ ■ EXISTING ORM o ■ STRUCTURESFROM1 ,O,AA Z i —� APPROVED WPO PLAN TO REMAIN c ■ ■ W S5,— -dss EL - - I<O j ESC PHASE III a ,' T -1 N N O N %D 00 F !410P / 1 SEDIMENT �110 I— — N EXISTING BASIN 4 I W APPROVED LIMITS 2 13.08 ac. v, - Lu rn OF DISTURBANCE � � / � 7-- I z= Z N z . PROPOSED EXPANDED LIMITS OF DISTURBANCE . AREA ra I" SEEN ` BUILDING �1 Q z = o oC Q f — Q O w z J Mu I Z - Q o w i z W ZI �zo = z = O W —=o- -- - - — --- - - - o I I f . ® ® ®®- ® - - ® _ -I �® I® ® '- - - lossipm - L u Q— I I V!ui BUILpING#2 i DD■�000001111 ITS 14 APARTMENT UNI0100101 Ln TS i �■■ ■�■��(•■ � W � W ---- r--- r---�i---- ----i PROPOSED - -- -- ��■ w j (— II II o j ■ n n n P FF ADJUSTMENT Tq� ■ EXISTING I z / �■�Z"L�r� r� PFRH4FFTFR DTVFRS�iT6N r� r-r APPROVED - — z PROPOSED SSF SF WITH WIRE BACKING •• • • — I SSF I �� DIVERSION DIKE ■■■■I��� ��ssF W ` _. F SSF SSF 5aLSSI- SSF SSF _SSF SSF SSF SSF -SSF ss _.,SSF SSE s F s � - p Q SSF PROPOSED SAL (D L.L_ W 0 0 M SF WITH WIRE '� S N W BACKING LL- - - -- / o W JOB NO. EXISTING KEY 182150 I GRAPHIC SCALE APPROVED LIMITS so o s ao so izo OF DISTURBANCE SCALE EXISTING APPROVED SUPER 1 °=.30' SILT F N CE TO ( IN FEET) REMAIN SHEET No. � 1 inch = 30 ft. r" 9 B l I SALAMANDER STREET ■ I I I I j ___ PROPOSED SF I I I I I III I I - M U WITH WIRE ' O / O TH 0� ■ I I I I I I I I III I �� BACKING �!� C, ■ I I I III ; �, J SCOTT R. LLINSZ ■ I � I I I I I � I I I I ! � PROPOSED TREE PROTECTION � � � �i O _ FENCING TO BE INSTALLED U Lic. No. 035791 ■ I I I I I I I I I I I I I/ ALONG LIMITS OF DISTURBANCE 0po 08/04/20 ■ I I I I I I I I _ — �� LINE TO PROTECT PROPOSED \ ` n�SSto L ■ I I I I I I I I I I I I TREELINE \ NA ■ I I ! I III I- MATCHLINE, SEE SHEET 10 �I I I I II IIIIIiIII I IIII � �II�II�II�II�II�II�II�II�I�II�II�II�II�II��II� ■� I' I IjI III II ��� ■ I I I I ;III I I is�� ♦ O z ■; l III IIII I I I I I ��� �o �� U LU ��, ■ I I I I�� ssF SSF z LU ■■■�■■■■■ i I I I I I I I I I I I I I I I I IIII I I F_SSF—ssF� DO ;� z o ■■■■ ■■ I I I I I I I I I I I! O PROPOSED EXPANDED - OO �• o w z J ■ �_ LIMITS OF � � . ■ ■ ■ ■ ■ ■ ■ Salto ■ ■ ■ I I SUMP AROUND STORM INLET DISTURBANCE Z o ■ ■ ■ ■ ■ PROPOSED UNDER SEPARATE SET N \ m O ■■■■■ �� OFPLANS Z w � \ 0 n W M I --- z < K n —�_ --- _---- \_ ,A w m Ln EXISTI STORM ■ \ \ \ w - \ VJ z ¢ z STIR URES FROM ' A OVED WPO PLAN �- --- I - m g TO REMAIN \ \ \ \ ' N EXISTING, APPROVED ���/// O \ \\ w a _ EXISTING STORM INLET i SUPER SILT FENCE TO / RECEIVES FLOW FROM REMAIN W o 0 EXISTING DIVERSION LL \ — • DIKES, AND CONVEYS TO j EXISTING SEDIMENT ` BASIN #4 440 440 P \ \ �- — = i� ■ ■ f■-■-i ■ rr■ ■ ■ ■ ■ f� ■ ■ ■ ■. XISTING, APPROVED LIMITS OF \ � ��.■DISTURBANCE LINE w Co N N Z Ln \_ �ID MU N t0 00 - .444 - ° e • .. ♦ \ \ ., ....... � I \ - /_ _ _372-_ r , ----_ _ \ g . 444�_ ---- - - - _ ; OO WETLANDS, 0P. 00 rn FFI-e i - 'DD EXISTING - — o C� I i CY) APPROVED I I - 1 I DIVERSION DIKE � ♦ ap4 - • y — % y M I i W = ♦ __ ■ �' �' Q I ■ � ilk N x I , _ LL LANSNDER —/ e • \ I I / I I N ■ ♦ 0 I W N �r Asa--- ■ b Q Z PF r I A ICE RINK PARCEL PROPOSED UNDER ' I ■ — r O — SEPARATE SET OF PLANS I i � ' � � I � �� —� �� � � � �; � > � Q .e F �� 1 ■ � a. IF �= l • Q s�- E : • \ \ Z � O � cc w G NONE ONE w VU • o W TS EXISTING, • �- M • 1 APPROVED I — I � V J U W o D C SEDIMENT \ • a BASIN #4 • \ z Q Z 2 -� O w • LLJ W Ln Cz Ul 0 e • a ♦ i ♦ \ w J O ♦ — • ♦ ♦ ♦ ♦ I ` -`\ \ ♦♦ O / W St3-■ a, -F _ SF—Sa_� SSF S'SF SSF •,y�� 1♦♦'' \ _ -1 Ul _ - ■ J1� � Q �♦ �P -low � LL in — Sesome F r ssF PR POSED SALAMANDER � / � j � �� � o sF WITH WIRE -—� STREET ���° O BACKING N � f F_ JOB NO. �GRAPHIC SCALE � a0 0 16 m0 60 12o � I EXISTING _ - � \182150 APPROVED SUPER KEY I SILT FENCE SCALE II I 1 "=30' IN EXISTING � 1 inch FEET ft. � i � I � �I i I � j - --- I �— TP APPROVED TREE O SHEET NO. ✓ I PROTECTION -- -- / I I 10 FENCING � 0 0000 GRAPHIC SCALE SCOTT R. LINS7 000 so o is ao so )zo — � Lic. No. 035791;1, m SIEMENS TP PROPOSE � � Quo 08/04/20 / RE E PROTEC ION FENCING ` (IN FEET) - - \ tONAL E�Gl 1 inch = 30 ft. �� — j55 s; — \ — --Cns� PROPOSED NEW r LIM TS OF L - { � DISTURBANCE _ 3ss - Ss - ss SSR PROPOSED -- -- - -- SF WITH WIRE i F `- - BACKING Of PROPOSED FLAT VDOT CLASS AI COARSE AGGREGATE U)) m OUTLET PROTECTION w GEOTEXTILE FILTER FABRIC z o Ln i --� ® \ / UNDERLAYMENT. FABRIC TO BE KEYED INTO EX. GROUND 9" z a i MIN. AT ENDS & ALONG PERIMETER. FABRIC TO OVERLAP A O Z. F_ . \ •�. SF WITH Ln PROPOSED MIN. OF 9" (L=33', W1=4', W2=15', D=18" MIN.) - > z i _ \ i \ PROPOSED GREENWAY — Yl oc w o j \ WIRE RR i � � TYP. N DISTURBANCE BACKING - i LIMITS OF SSF Lu n--A s— :� ) J ) so ♦ \ — —assess �ssv VI i ss�illillilillillillllllIll �ss °ss �55 �` Ass`r ass ` ss / ■-ao■■■■ S\ ss� i-PROP 5ED 18" �•�� ass DIVERSION. CONTRACTOR ■ D D SHALL ENSURE POSITIVE i T ■ SLOPE IS MAINTAINED. M ■ I _ BERM SHALL BE ■ STABILIZED AS A FIRST �■ I I \ STEP IN DISTURBANCE. YAN i■� �I PROPOSED PHA E II MASS v PROPOSED18" GRADING CO TOURS D D DIVERSION. CONTRACTOR SHALL ENSURE POSITIVE SLOPE IS MAINTAINED. BERM SHALL BE STABILIZED AS A FIRST � - STEP IN DISTURBANCE. CONTRACTOR SHALL INSTALL A TS R WD WW DIVERSION ACROSS THE CONSTRUCTION ENTRANCE. D C PROPOSED PAVED V _ CE CONSTRUCTION ENTRANCE - (12'z70' MIN.) WASH RACK &DOWN GRADIENT DIVERSION & SEDIMENT TRAPPING DEVICE � � I �• ° ♦ �� PROPOSED E SC •� CRS CONTRACTOR f v, LOCATION OF PARKING & PHASE II PORTA-POTTIES STAGING AREA �. SEDI BASIN BT LOCATION OF 15cy . DUMPSTER 11.27 8C. THE FUELING TANK SHALL BE COMPLETELY EXISTING, APPROVED SEDIMENT TRAP 4C I I W a • SURR UNDED BY A 2' DEEP, 2' WIDE EARTHEN BERM ;' (DRAINS TO PROPOSED SEDIMENT BASIN B ) / Z i s WITH HEAVY MIL POLYETHYLENE LINING OR BE Q • LOCA ION OF PLACED N AN IMPERVIOUS OPEN -TOP DUMPSTER. / 4 ■ FUELING AREA THE PROP �� ■ FUEL N TH ED BERM ORS ILL. CONTRACTOR SHALL I - - - � J � T' ■ ENSURE VOLUME CAPACI IS 10% LARGER THAN THE ` W ,, ■ MAXIMUM VOLUME OF S UEL. � 1� I y J : PROPOSED STOCKPILE " SURROUNDED BY j MATCHLINE, SEE SHEET 9 SILT FENCE SEE I IMEN I IMEN I IMEN I IMEN I I I IMEN I ISEE I ISEE I ISEE I I m I ISEE I ISEE I ISEE I ISEE I I m I ISEE I I m I IMMM - 1 s F�S ■ _ _ " q , -- ems. m .. " ■ PROPOSED PHASE II MASS GRADING CONTOURS y ur N ? z w 0 U I z 0 U U N rl n C Lu m U) ' z c ) � a 0 i w �> Q n in IT N kDD W 111 L9 Cn ti Cl? z 00 N Z � M H� r Q W N V W Q B M w zJ > 0 J Q J Lij z . Lp O -- Q z rN Z U O w I--1 W Wr Q Y L.L.I U V - F- LU -z ul U)z O lJl Q Lu _I O yJ Lu ' LJJ In - a J Q p 1 Ce I ® O p � N Lu J ~ F 0 w m Ln JOB NO. I<EY 182150 SCALE 1 "=30' SHEET NO. _ 11 1 � \00. Ii Oo F o -O - MAPPED - - - FLOODPLAIN, OO _ - TYP. � GRAPHIC SCALE 30 0 i6 30 60 \ 120 - v1 LIMITS OF- ,� STREAM, TYP. Cc PROPOSED FLAT VDOT CLASS Al COARSE AGGREGATE OUTLET PROTECTION w/ GEOTEXTILE FILTER FABRIC UNDERLAYMENT. FABRIC TO BE KEYED INTO EX. GROUND 9" — MIN. AT ENDS &ALONG PERIMETER: FABRIC TO OVERLAP A ( IN FEET 1 inch = 30 t. \ \ r o STEEP) S OF 015" CL. III RCP LOPES, @ 1.14 /o w/ VDOT TYP. STD. EW-1 l ` 1 PROPOSED 100' WIDE VDOT CL. AI RIPRAP I LINED EMERGENCY SPILLWAY CREST ELEV.=396.66'. SPILLWAY TO HAVE 4:1 0000, ISIDE SLOPES FOR VEHICULAR o TT\ V\ TRANSITIONS. 10'--WIDE TOP i **I Z� o •� - .- OF DAM / � O -- - -ELEV.=398' \� �— --Ss, iss�JS S� PROPOSED FENCE DER I 950 L FSSF o T S- ;COTT/R. OD- INS Lic. No. 035791 08/04/20 "Ai Vl Z z O a L w 0 Z o = i { ` � i J ' a O '�H/� � W . z Vl F�1LLI F z W 0 y U i z O o Lurj ram. OC i a z g a 0 i w ) C 0 0 0 Q w v N ko 000 ass � / .25 AC. � _ 101LF. 0 � � V - ♦�♦ \ 04 - - �---- GOD\ -- - - ass — jSs S o co ♦ G S y ass ss ass ss N :: _ �S�'� � ,n,a. ASS � '•., � 1, � � � I - 35� 396 - B B ♦ yss SO4 Oo i y CD I� - T 04 PROPOSED VDOT STD. B-1 (048" REINFORCED CONCRETE / ` ` O OPENING) TO SERVE AS 048" ESC RISER STRUCTURE. RISER I I ; z ■ TO INCLUDE A CONCRETE FOUNDATION &TRASHRACK. SEE J ■ 13zM ■ SWM DETAIL SHEET FOR FOUNDATION & TRASHRACK �, j/ LLJ SPECIFICATIONS. SEE SHEET 13 FOR VDOT STD. B-1 DETAIL �- 1 / ID J - I J - O ■ & VDOT STD. RIM E DETAIL FOR THE ESC RISER CONVERSION, _ Q ■ ESC RISER RIM ELEV.=395.66' WITH DEWATERING ORIFICE AT 392.3'. SEDIMENT BASIN CLEANOUT ELEVATION= 390.98'. i O U af B M PROPOSED 2' WIDE PROTECTIVE SWM BARRIER ■ AROUND THE RISER TO BE CONSTRUCTED AT THE o Z PROPOSED SAFETY FENCE ■ RUCTURE's CONVERSION TOIA PERMANENT SWM ME OF THE RISER TRIS R. SEETHE SWM PLAN FOR SWM BARRIE R DETAILS \ ~ T� O - -- -- INSTALL SIGNS "WARNING ■ T, ,) V QUICK SAND, KEEP OUT' �- :z < Z U w -- — - fLu ----_ — ♦ ♦ ;� T �� w �n w ♦ /Lu II' I -- Z - - ♦ / O _. --- --- — J ---- - _ - ----- - I I Lfi --- -- - J O ZLLI - -- - ♦ o `� � s W LLI — \�♦ - T U — _ - - - - _- ♦ � PROPOSED I \ � � LLl ' T LIMITS OF �- \ ' ♦ ♦\\ DISTURBANCE LLB I Q / � O I 1 ROPOSED SF O II j �MU WITH WIRE cq ■ ■ / ` ■ I BACKING I I AT PROTECTION PROPOSED TREE PR T �� ■ I _ ^ _ 5 _ I I FENCING TO BE INSTALLED j - _ T ALONG LIMITS OF DISTURBANCE - LINE TO PROTECT PROPOSED ` los No. T ■ - TREELINE 182150 MATCHLINE, SEE SHEET 10 KEY SCALE I _- \� ■ I I — - — -sF _ �I 1 "=30' co SHEET - . I I I I I Ss� s E T NO l Ill l s /sSF T 12 1992 3.36 TYPICAL ORIENTATION OF TREATMENT - I (SOIL STABILIZATION BLANKET) cues I nW ON SNAIL SLOPES, STRIPS OF NETTING PROTECPOE COVERINGS MAY BE APPLIED ACROSS THE SLOPE. BERM WHERE THERE IS A BERM AT THE TOP OF THE SLOPE. BRING THE MATERIAL MR THE BERM AND ANCHOR R BEHIND THE BERM._Fe�ft ON = SLOPES, APPLY PROTECTIVE COVERING PARALLEL TO THE DIRECRON OF FLOW AND ANCHOR SECURELY. d BRAG ATIGTDOWN TO I LEVEL AREA BEFDRE M TERINATINNG THE INSTALLATION. TURN THE END 4' UNDER PND STAPLE AT fY INTERVALS. 12• IN DITCHES. M Y PROTECTNE COVERING PARALLEL TO THE DIRECTION OF FLOW. USE CHECK SLOTS AS REQUIRED. AVOID JOKING MATERIAL N THE CENTER OF THE ORCH IF AT ALL POSSIBLE. Source: Adapted from Ludlow Products Brochure Plate 3.36-1 III - 361 Sediment Basin'B' Design MN. T WI SPILLWAY T WITHOUT CREST OF EMERGENCY SPILLWAY drainage area (acres) 11.27 basin volumes: (using 2' contour intervals) DESIGN HIGH WATER (25-VR. STORM EIEM) elevation (ft) contour area (sf) volume(cy) D.S. 387 786 0.0 MIN. 1.O ' -- 388 1,387 39.7 DRY STORAGE RISER CREST DEWATERNG 390 3.568 217.0 � 391 5,310 380.3 WET STORAGE 392 8,605 635.6 394 13,155 1435.6 s_E »M T STORAGEPOINT ( TOO 3 C.Y� / ALPREDUCED 396 18,066 2587.1 398 23,607 4126.0 wet storage: wet storage required (cy) (67A13A) 755 design high water 396.66 dewatering orifice elevation (ft) 392.3D top of dam (ft) 398.00 wet storage provided at this elevation (cy) 755 top width of dam (ft) 10.0 available Volume before cleanout (cy) (34'DA) 383 bottom of basin (ft) 387.0 cleanout elevation (ft) 390.98 approx. bottom dimensions: 72'X27' distance from cleanout to orifice (ft) (> T) 1.3 upstream face slope: 5:1 downstream face slope: 3:1 dry storage: dry storage required (cy) (67•13A) 755 baffles: NO principle spillway crest (ft) 395.65 length of flow, L (ft) 215 dry storage provided at this elevation (cy) 1610 effective width, We (ft) 80.01395 diameter of dewatering orifice (in) 8.0 L / We (baffles required if < 2) 2.7 diameter of flexible tubing (in) (orifice+2•) 10.0 collars: YES runoff: depth of water at spillway crest (ft) 9.66 C (use 0.45 for bare earth) 0.45 slope of upstream face (ZA) 5 tc (min) 5 slope of barrel (Sb) 1.14% 12yr 5.2 0 2yr 26.4 length of barrel in saturated zone (Ls) 91.09 125yr 7.5 Q 25yr 41.8 number collars required 2 dimension of permanent collars 6.6x6.6' principle spillway: available head (ft) 1.00 emergency spillway: YES diameter riser (in) 48 required capacity (025-0p) (cfs) 0.0 spillway capacity, Qp (cfs) 40.D bottom width (ft) 100 diameter trash rack (in) 72 slope of exist channel (%) 1.4% barrel length (ft) 175.65 minimun length of exit channel (ft) 48 head on barrel through embankment (ft) 10.7 crest of spillway (ft) 396.66 diameter of barrel (in) 15 APPROVED 'WET POND 4' PLAN u - - g % SCALE 1"=30' ill APPROVED RIPRAP LINED II INLET CHANNEL PROTECTION - Il II l / ` APPROVED FOREB'AY \ BOTTOM ELEV.=360.0' 1 I i o I ; MANAGED STEEP APPOND SLOPES, TYP. BOTTOMMELEV.LEV.I / I 1 m / =358.0' I APPROVED 10' WIDE SAFETY BENCH / RANGING IN ELEVATION BETWEEN 366' & 366.20' PER WED 201700037. \ / / j I APPROVED 12'WIDE TOP APPROVED IO'WIDE AQUATIC BENCH - - ' 0 OF DAM ELEV.=372.0' RANGING N ELEVATION BETWEEN 3645E&361APPROVED 3017W D0E7 RIPRAP LINED EMERGENCY I / SPILLWAY CREST ELEV.= 370.20 (W PO 201700037). APPROVED'STM X-02' DRAINAGE ' STRUCTURE (RIM=372.20, INV IN=362.80, APPROVED/11'STM X-Oi' POND 4 072" RISER INV. OUT=362.70(LOW-FLOW), INV. RIM=369.80 ( ) OUT=363.60 (PRIMARY FLOW, 60 ). STRUCTURE TO SPLIT FLOW TO PROVIDE - ADDITIONAL DOWNSTREAM WATER QUALITY TREATMENT. SEE WPO , - Q f 201700037 FOR DETAILS. i \y STREAM, \ TYP. �\ APPROVED 69.IV OF ¢60" RCP AT 1.59% WITH CONCRETE CRADLE TO SERVE AS WET POND 4's BARREL (WADI 201700037). \\\\ APPROVED VDOT STD. ES-1 UNDER W PO 201700037. 1 INV OUT=363.30 060" RCP I 06" LOW -FLOW ORIFICE INV.- -366.00 / (TO BE REPLACED WITH NEW 03" ORIFICE, INV.=366.00) / 09" MID -FLOW ORIFICE INV.=367.25 (TO BE REPLACED WITH NEW 08" ORIFICE, INV.=368.75) / I I O 1 o w h // \\I I / GREENWAY, 1 I ' 1 � TYP. I % \ APPROVED 30' LONG CLASS I RIP-RAP OUTLET PROTECTION ® UNDER WPO 201700037. ) z o I WEEP HOLE CAS RE010.) I I LLJ IW I •I i LL s 1I STEPS IiA5 RECTA I �ai -1 ' 't D 'IT B-t 6" A 6" - W5.5 K W5.5 WELDED WIRE FABRIC OR EQUIVALENT AREA MONOLITHIC 2" 2" A FOOTI NO D 4 8"�2X 2 DOGHOUSE WITH FOOTING NOTES: I. SEE GENERAL NOTES FOR ADDITIONAL INFORMATION ON WEEP HOLES. STEP REQUIREMENTS. H" ILIN. FT. FOR MANHOLES) DIMENSIONS. ETC. 2. ALLBASE UNITS ARE TO BE IN ACCORDANCE WITH THE REQUIREMENTS OF AASHTO M1 49 3. CONCRETE SHALL BE 4000 PSI. 4. WHERE OPENINGS ARE REOUIREO FOR PIPE. THEY SHALL BE FORMED. DRILLED, OR NEATLY CUT AS APPROVED BY THE ENGINEER THE CONTRACTOR SHALL FURNISH THE FABRICATOR WITH AN BETWEEN CENTER N INVERT ELEVATIONS. AN P THE THE BET EE CE TE LINES. THE E T V C TIO O D THE SIZE OF ALL PIPES TO ENTER THE MANHOLE. HOLES ARE TO BE A PIPE. CF 4" TO A MAXIMUM OF 8" LARGER THAN THE OUTSIDE DIAMETER OF THE PROPOSED PIPE. S. DIMENSIONS SHOWN ARE MINIMUM. ACTUAL DIMENSIONS MAY VARY WITH MANUFACTURER. 6. "D" IS NOMINAL DIAMETER. 7. IN THE EVENT THE INVERT OF THE OUTFALL PIPE IS HIGHER THAN THE BOTTOM OF THE STRUCTURE. THE INVERT OF THE STRUCTURE SHALL BE SHAPED WITH CEMENT MORTAR TO PREVENT STANDING PROPOSED LEVEL II 'SEDIMENT BASIN B' DETAIL SCALE 1"=30' r-STEPS (AS REO'0.: SWEEP HOLE LAS REO'D.1 I D I C �. � W a ,I I1• PROPOSED FLAT VDOT CLASS Al COARSE AGGREGATE OUTLET PROTECTION W/ GEOTEXTILE FILTER FABRIC UNDERLAYMENT. FABRIC TO BE KEYED INTO EX. GROUND 9" MIN. AT ENDS & ALONG PERIMETER. FABRICTO OVERLAP A MIN. OF 9" (L=33', � W1=4', W2=15', D=18" MIN) s SS� y R 0 FA W H OP G FA IC N R M T / \ r \ I D9WW J ALTERNATE JOINT DETAIL DIMENSIONS D x MINIMUM Y MINIMUM SUGGESTED VAX. PIPE SIZE ABSOLUTE MAXIMI #6., 3 d" 6" te 21"" 48" 5" 6" 24" 27" 60" S" 8' 36" 4211 " 72.. 6.1 a,. 48„ 54' 84" 7" W. 60" 56" 96" 81. B" 72.. a DB n v I B" 7e6, sa 90„ g8„ 12B' tOl a" 96" 702" 144" 1 12" 1 B" 1 108.. 12a" OR PONNNG OF WATER IN THE STRUCTURE. 8. TONGUE AND GROOVE JOINT ARE TO BE OF FABRICATOR'S DESIGN MEETING VOOT APPROVAL, JOINTS ARE TO BE SEALED WITH MORTAR. D-RING CASKETS. OR BUTYL RUBBER, III DEPTH "El" OF 36" DIAMETER BASE UNIT RESTRICTED TO 4'-0" MAXIMUM. ONE THROUGH PIPE ONLY. (ONE PPE ENTERING AMID ONE PIPE EXITING STRUCTURE) A C., r OF THE CRL.IN AL SEALED AND SIGNED DRAWING IS ON FILE IN THE CENTRAL OFFICE, �VDDT SPUENCIEN R-,A� AND BRIDGE STANDARDti STANDARD PRECAST BASE UNITS EFE SHEET OF REVISION DATE VIRGIND PAR I..-. oars I ., I E TMENT GF TRANSPCRTATION :: 3�2 „�. 2016 ROAD & BRIDGE STANDARDS O SCOTT R. LINS'Z v LTC. No. 035791 a LIMITS OF STREAM, TYP �.f� 06/25/20 4� l I'ONAL E , 4� 4 v Ia, S 7 10' WIDE TOP OF DAM ELEV.=398' >x PROPOSED 175.66' OF 015" CIE. III RCP @ 4.24% w/ VDOT STD. EW-1 PROPOSED 100' WIDE VDOT CIE. AT RIPRAP LINED EMERGENCY SPILLWAY CREST ELEV.=396.66'. SPILLWAY TO HAVE 4:1 SIDE SLOPES FOR VEHICULAR TRANSITIONS. YI tic � ySs PROPOSED VDOT STD. B-1 (048" REINFORCED N` CONCRETE OPENING) TO SERVE AS 048" ESC RISER STRUCTURE. RISER TO INCLUDE A CONCRETE FOUNDATION & TRASHRACK. SEE SWM DETAIL SHEET FOR FOUNDATION & TRASHRACK SPECIFICATIONS. SEE _ THIS SHEET FOR VDOT STD. B-1 DETAIL & VDOT STD. MH-1 DETAIL FOR THE ESC RISER CONVERSION. ESC RISER RIM ELEV.=395.66' WITH DEWATERING ORIFICE AT 392.3'. SEDIMENT BASIN CLEANOUT ELEV.= 390.98'. l� fi I SSS ASS PROPOSED 2' WIDE PROTECTIVE SWM BARRIER AROUND THE RISER TO BE CONSTRUCTED AT / THE TIME OF THE RISER STRUCTURE's CONVERSION TO A PERMANENT SWM RISER. SEE THE SWM PLAN FOR SWM BARRIER DETAILS. PROPOSED SAFETY FENCE, INSTALL SIGNS "WARNING QUICK SAND, KEEP OUT" SEE STAWDARAD SEA FOR APPLICABILITY OF SAFETY SLABS. B STANDARD MI NOTE' ` FRAME i COVER THE TOP OF MASONRY IS TO BE LEFT JUSUFMIENTLY LOW TO PERMIT PROPER ADJUSTMENT DSTMENT OF COVER AND FRAME TO GRADE THE USE OF MORTAR NOR BRICK ASS DIRECTED BY THE ENGINEER. •-ems. 1r- r,���I // iall I\ i I� 6• n ON SIANDAI SUBSTITUTEI SECTION WE THE ENGINE STD. ST-1 I B�A o" BEVEL 45• DIAMETER - 4 -B'+ L2 X WALL THCKNESS) SECTION B-B BRICK CONCRETE OR CONCRETE BLOCK HALF PLAN VIEW HALF SECTION A -A (WITH FRAME AND COVER REMOVED) BRICK CONCRETE NOTES' 1. OUANTITES SHOWN ARE FOR MANHOLE WITHOUT PIPES. THE AMOUNT DISPLACED BY PIPES MUST BE DEDUCTED TO TABLE OF QUANTITIES DEPTH BRICK MANHOLE CONCRETE MANHOLE BRICK CONCRETE CONCRETE FEET THOUSANDS CU. YARDS C.J. YARDS 4 0.5 G.785 1.437 5 O. 0.785 1.699 fi 0.9 5 C JB.. 1. 61 9 7 1.0 .7 0 B.4 2223 B 1-2 0.785 2.485 9 1.4 0.785 2.747 10 1-6 0.785 3.009 11 1-9 0.970 3.455 12 22 0.970 3.817 13 2.5 0.970 C 179 14 2.8 0.970 4.541 15 3.1 0-970 4,903 16 3.4 0.97C 5.265 17 4,0 i.173 6.032 INGREME NT 0.45 - ERENCL I MANHOLE FOR 12" - 48" PIPE CULVERTS 302 VIRGINIA DEPARTMENT OP TRANSPORTATION 2016 ROAD 8 BRIDGE STANDARDS OBTAIN TRUE OUANTITES. 2. A BASE THICKNESS OF W WAS USED IN COMPUTING CONCRETE QUANTITIES. 3, INCREMENTS TO BE ADDED FOR EACH ADDITIONAL FOOT OF DEPTH. 4. MATERIALS MAY BE BRICK CONCRETE OR APPROVED CONCRETE MANHOLE BLOCK, 5. IF THE MINI BLOCKS ARE USED E MUM THICKNESSOF SAME IS TO BE 5". OTHER OTTER THICKNESSES CKNESSES SHOWN CONFORM SH TO WALL THICKNESS OWNN FOR CONCRETE. 6.ALL CONCRETE TO BE CLASS AS. 7. WHEN SPECIFIED ON PLANS THE INVERT IS TO BE SHAPED IN ACCORDANCE WITH STANDARD IS -I. THE COST OF FURNISHING AND PLACING ALL MATERIALS INCIDENTAL TO THE INC IS TO BE INCLUDED IN THE BID PRICE FOR THE STRUCTURE. ROAD AND BRIDGE STANDARDS REVISION DATE SHEET 1 OF 5 106.Ot ZUn z O a o Z O - J � f J < a O LU W z u cc ( W I� I LID Ir- r I`M / �••� V Nco z co ILA Lr N n/ O 1I..J W N W i �(f) V W ) v) J J W W o O L9 j W Z 1 O o W I - Le U 5w r W U (n W V) J W j z J w �o I..L � O w J r< O V OO O N U W J H H w W JOB NO. 182150 SCALE AS SHOWN SHEET NO. 13