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HomeMy WebLinkAboutWPO201200098 Plan - E&S Erosion Control Plan 2013-02-28GENERAL MOTES.- OWNER: TAX MAP 32, PARCEL 33; TAX MAP 32, PARCEL 34 ESTES PARK, LLC PO BOX 1457 CHARLOTTESVILLE, VA 22902 ENGINEER: COLLINS ENGINEERING 200 GARRETT STREET, SUITE K CHARLOTTESVILLE, VA 22902 434.293.3719 DEVELOPER: RIVERBEND MANAGEMENT 321 EAST MAIN STREET, SUITE 500 ,. CHARLOTTESVILLE, VA 22902 .. SURVEYOR: TOPOGRAPHY AND BOUNDARY OF THE SITE WERE PROVIDED BY TOM LINCOLN IN OCTOBER, 2010. TOPO IS FIELD SURVEYED TOPOGRAPHY SHOWN AT 2' INTERVALS. CURRENT ZONING: PLANNED RESIDENTIAL DEVELOPMENT -(PRD) WITH PROFFERS PREAPPLICATION CONFERENCE: APRIL 26, 2010 USE: 68 SINGLE FAMILY ATTACHED. LOTS DENSITY: 5.3 UNITS PER ACRE OPEN SPACE: 25.1% OPEN SPACE PROVIDED SETBACKS: FRONT 10 FEET MINIMUM SIDE 5' MINIMUM WITH A MINIMUM BUILDING SEPARATION OF 10 FEET REAR 10 FEET MINIMUM FOR INTERIOR LOTS & 20 FEET MINIMUM FOR PERIMETER LOTS MIN. LOT FRONTAGE 40 FEET'. NOTE: COVERED PORCHES, BALCONIES, CHIMNEYS, EAVES, AND LIKE ARCHITEMRAL FEATURES MAY PROJECT NO MORE THAN 4' INTO ANY REQUIRED YARD. BUILDING HEIGHT: 35 FEET MAXIMUM TOTAL ACREAGE: 12.75 AC. STREETS: CURB AND GUTTER, PUBLIC STREETS EXISTING CONDITIONS: SITE IS PARTIALLY CLEARED WITH ONE EXISTING HOUSE. PORTIONS OF THE SITE ARE WOODED. PHOTOS OF EXISTING STRUCTURES WILL BE PROVIDED TO ALBEMARLE COUNTY PRJORTO DEMOLITION. UTILITIES: SITE WILL BE SERVED BY PUBLIC WATER AND SEWER PHASING: PROJECT WILL BE COMPLETED IN TWO PHASES. FLOODPLAIN: NO FLOODPLAIN EXISTS ON THE SUBJECT PROPERTY, PER FEMA MAP #51003CO145D TOPOGRAPHY: PROVIDED BY LINCOLN SURVEYING, OCTOBER 2010. DATUM: NAD 83 CRITICAL SLOPES: CRITICAL SLOPE IMPACTS WERE APPROVED WITH THE REZONING ZMA 2010-1i STORMWATFR MANAGEMENT: STORMWATER MANAGEMENT WILL BE PROVIDED WITH THE FINAL SITE PLAN. CONSTRUCTION TRAFFIC; - NO CONSTRUCTION TRAFFIC SHALL BE PERMITTED TO ACCESS THE Si` A t 1L'BRY LANE. j CONSTRUCTION TRAFFIC SHALL ACCESS THE SITE VIA ACCESS EASEMENTS FROM PRG -r 1 .4i). CEMETERY: THE OWNER & DEVELOPER SHALL MAINTAIN THE CEMETERY LOT DURING CONSTRUCTIION UP.Tj: THE HOA TAKES OWNERSHIP OF THE MAINTENANCE. THE CEMETERY LOT SHALL BE FENCED OFF AND PROTECTED WITH A BLACK DECORATIVE FENCE. THE CEMETERY SHALL BE PROTECTED AND MAINTAINED THROUGHOUT THE DURATION OF THE CONSTRUCTION ACTIVITY. A COMMEMORATIVE SIGN SHALL ALSO BE PLACED WITH THE QMETERY LOT, SIGNIFYING THE HISTORICAL INFORMATION OF THE GRAVEYARD. ESTES PARK EARLY GRADING PERMIT RIVAN NA MAGISTERIAL DISTRICT ALBEMARLE COUNTY, VIRGINIA I� 4 O Q O/9 C i SUBJE , o Q 1 � S o FOREST LAKES POND J SHEET LAYOUT SCALE: 1" = 250' VICINITY MAP SCALE: 1" = 2000' LEGEND ROADS DRIVEWAY CULVERT EXISTINGI '.!TIONS EXIS77NG CULVERT O CULVERT Q DROP INLET & STRUCTURE NO. ----- -zoo------------ CURB D CURB & GUTTER zaa.ss PROPOSED PAVEMEN. �— EC -3A DITCH EBS PLAN DETAILS & CALCULATIONS DEPTH OF EC -JA DITCH E&S PLAN DETAILS& CALCULATIONS EC -2 DITCH f 6"1 DEPTH OF EC -2 DITCH VICINITY MAP SCALE: 1" = 2000' SHEET INDEX TITLE EARTH DITCH COVER SI DRIVEWAY CULVERT EXISTINGI '.!TIONS BENCH MARK - EROSION & S DIMENT CONTROL NARRATIVE & DETAILS CLEARING LIMITS T VDOT STANDARD STOP SIGN ----- -zoo------------ EXISTING CONTOUR i2 PROPOSED CONTOUR zaa.ss PROPOSED SPOT ELEVA PON �— TSC DENOTES TOP/BACK OF CURB EBS PLAN DETAILS & CALCULATIONS T/B DENOTES TOP OF BOX SHEET INDEX TITLE SHEET COVER SI 1 EXISTINGI '.!TIONS 2 EROSION & S DIMENT CONTROL NARRATIVE & DETAILS 3 EROSION & SEDIMENT CONTROL PLAN PHASE I 4 EROSION & SEDIMENT CONTROL PLAN PHASE II 5 EROSION P• SEDIMENT CONTROL PLAN PHASE III 6 E&S PLAN DETAILS 7 E&S PLAN DETAILS & CALCULATIONS 8 EBS PLAN DETAILS & CALCULATIONS 9 E&S PLAN DETAILS& CALCULATIONS 10 TOTAL SHEETS 10 APPROVED 11 thaAlbema,I: County Conmunity Development Department DateHe ��+ plate APPROV :�OMMT mll COLLINS ENGINEERING IS NOT RESPONSIBLE OR LIABLE FOR ANY CONSTRUCTION OR DAMAGES TO THIS PROJECT PRIOR TO ALL FINAL PLAN APPROVALS. OFA o z O SCO T . COLLINSZ LJ No. 35791 ,a 21 �SIONALO 0) Lo M M 0' N z M 704 � C) H 1 N Lu J zF— > F--1 LU (n Lu W Q _ (n ��1 w J(n (J > < J U U U aC Q Y W 'n ul zLu w w - U Lu Lu 0 =F U� N o Li E� a JOB NO. z _ _ 102041 - SCALE AS NOTED 3 SHEET NO. - 1 MATCHLINE-M 111111" I7SE E,u" H I ES S H BENCH, 2 �SM -- ----- IER POINT CPS�2, NAIL WITH FLASH ----- ------- MARK IS SURVEY CONTROL O'W TEOLINE E D. 14651 PG.)1496 ILEV. 525.53 i20'DRAINAGE­ESMT­___. Ib.B- 106.9, PG. 28 II'Of F SCOTT R. COLLINS!Z >\ 49 0 EASEMENT FO& 10- tqOu - U No. 35791 AC, ESS AN EXISTING 6" PVC a i IIIIONAL 4uj I TARY # SANI ASPHALI 511EE C9 I- ----------- Iif20'WATERLINE/ESMT - -- - ------ FF D B. 1435, PG. 462,496 IItIR I / I IItIfI------- 15' I::z II- ------- - - tNIT`ARY,' I&ACC 0 SERVE TMP 32--34-, PG.496/ 6' EkLSMT D.B� 2303, PG. 632 S6 LOT LINES PER PLAT �EX 12" RQP CULVERT TA iIFOREST RIDGE SUBDIVISION! I]��-Tp REMAIN -- - - - - ------- lb/27t995 RA�VEL CRI vt C E ASSOC., IN, I__C7 _C_ I5*Q8'06"E .. .... D CRITICAL ---,,APPROVE ISLOPEWPACT$ YP.) 458 39' f 0 I"E i(T w/m,* i VAI_ IIU) v) G G IIY U) 0� U Lu Lu ItItLu AA -�,OHE NC IU) ED 2: �E: tITO BE ROOVED CD I0 0 u u < CL a - F Lu ui IIIH,H cl� t0 itI> Z ILu 0 MT I15'VEPCO ES i IEXISTING CREEK ID B 1822, PG. 211 1, IIIIIEXI IifN OVERHEAD,EASEMIENT IJ I0. kNAGE A� /OR Lu !4) UTILI-I Y--tA,'3tMtN I LINES -PF l`,FORES�� RIDGE SUB -DIVISION 1 0�074$�95 I_P R PLAT D.B,/11504�' 6.48 /,u I0 _0ABU,5I;I, IEXISTING 6"J�PVC IASSOC., INC. �AN�TA ,GALE & r FOXI CLIFFORD H 31 ifIRUTH r_ S J 0,H N S ZON IE R ZONE: R E�, IIII03200-00- iTMP: 03�00'700-09-03300 Iy TMP 00 IIItps�: VACANT CN RESIDENTIA� l00 C) 5 IC) (14 ;t 0 ICD IEXISTING-CRE 0 II51 P Y/ 8 3 1 PG. 4 3 11 I G. 14 9) b 9 EK x RITICAL LLJ A P ROVED C I i7ti S�OPE IMPACTS (TYR.) III0 IIILli _v_ �0, - IIitItIm Q ILO EXIST,'dCREEK 30- VEPCO ESMT IfID.B. 1 IILu 075, PG. 207 L9 _T CY) ICY) itIEXISTING PVC- Ii Lu ISANITARY IAND EASTING�WET'L, ITS EXISTING TREE,L1M (y) AREA Lu ItIIIEXIStINGCRITICkL PES TO,REMAIN L I K HLA I IXIS,T,INGOHE7 IsLo R DG UBDI)VISION 0 /1995 R96DA US NLE & A f D ITO BE REMOVE (3) SSOC, /INC IItIv ILi Z_ fIN rt00 -N LLJ CE EXISTIN ICLAR 0 If0 LL1 TO BE REMOVEI C ILLJ Im IL LL1 ;PIP IIq E- EE THK i 'EET U WITCHLI� �ISIH FJ I 0 Iv 0 -�ORY RIESIDENCi�, IEXISTING 2-S. TO BE REMOVED EXISTING CRE�K TAX MAP NUMBERILOT NUMBERS: AD,J,OININ,G,OW,NER,IN,F,ORMATIOLN,, DEED BOOK/PIAGE ZONING/USE IDENTIFICATION 0 F- tI046B4-01-00-000AI D, B� 11 38 PG, 448 R-4 RESIDENTIAL A 0 ARBOR LAKE TOWNHOVSES ASSOCIATION INC ItII046134-00-00-000AO FOREST LAKES COMMUNIM ASSOCIATION INC 0 ID.B. 1304 PG. 346 R-4 RESIDENTIAL I-00-00-03700 VIRGINIA ELECTRIC & POWER CO R-11, R-1 5 VEPCO 100'WPO STREAM 03200 C ISTING DILAPIDATED IL9 9 HOUSE TO BE I04664 -02 -OA -00100 QESIMINI, THOMAS W 0�13� 2858 P(3,392 R-6, R-15 RESIDENTIAL 0 D u REMOVED tI046B4-02-0A-00200 SHWFLETT� DAVID W JR OR AMY 5 0,13� 2645 PG� 2,47 R-6, R-15 RESIDENTIAL IE FRAME BUFFER- TiNG-CRITI"CAL IfR-6� R-15 RESIDENTIAL F 046B4 -02 -OA -00300 :CRADDOCK, MARY JEAN 03. 3285 PG� 285 -SLOPES TO REMAIN TIAL -02-OA-00400 L PEYTON HUMPHREY SUCC -SSOR -6, R SHATTUCK, ELIZABETH NELMS TRUST, E TR DI.B. 1932 PG� 217 R -15 RESIDEN IF C/O HANT7MON W IESEL &L COMPANY 0 -02-GA-00500 SHATTUCK, ELIZABETH NEILMS TRUST� L PEYTON HUMPHREY SUCCESS R-6, R-15 RESIDENTIAL ryoo tE�ISTING E 046B4 OR TRS ETAL D.B, 1932 PG, 217 CEMETERY H ........... �C/0 HANTZMON WIEBEL &t COMPANY 0 C)� 046B4 -02 -OA -00600 SHATTLICK, ELIZABETH NatLMS TRUST; L PEYTON HUMPHREY SUCCESSOR TRS ETAL D�B. 1932 PG, 217 -6, R-11 - - ------ . . . ........ R, RESIQENTIAL EXISTING WETLAND uJ D AREA (NOIT US ARMY '�,k COMPANY C/O HANTZMON WIEBEL uJ RIPS OF ENGINEERS 046B4 -02 -OA -00800 :SORENSON, 3ARED OR JENiNIFER D.B. 3762 PG� 268 R-6, R-15 RESIDEN-RAL EX!STINGCRITICAL CONFIRMED) .0 SLOP ES 1) REMAIN -02-DA-00900 SAVANT, AARTI AMAN OR A�MAN ANI R-6, R-15 RESIDENTIAL 7 3 -1 6'3 1 7 046134 D,B, 2979 PG, 664 K 046134 -02 -CA -01000 SUNSHDIE INVESTMENTS IINC DA, 1923 PG. 106 R-6, R-15 RESIDENTIAL L C :D -----EXISTING 8" PVC N 44 § 26 w I6.18 I046B4-02-00-OODAI WOR111 CROSSING OWNEfRS ASSOCIATION INC D.13, 2819 PG, 303 R-15 RESIDENTIN, 0 LLJ SANITARY 7777 N 71 vv < TORM'DRAIN ESMT IC/O WORTH CROSSING LL(C D.B. 1575, PG,. 539 0 KOZEL, NATALIE K OR SHAWN P GAINER R-6, R-15 RESIDENTIAL z z -, 046B4-02-08-00100 0�8, 3452 PG, 048 N Lu V) 046B4 -02 -OB -00200 CHR PROPERTIES #1 LLC D.13, 3330 PG. 450 R-6, R-15 RESIDENTIAL 0 ui A ...... 046B4 -02 -OB -00300 OUR ROTH LLC D,B, 3052 PG. 320 R-6, R-15 RESIDENTIAL p uJ IB b EXISTIN 2W SANITARY 0 E U SEWER 04684 -02 -OB -00400 MOIZ, FAISAL OR NIMRA SIIDDIQUI D.B. 3257 PG� 290 IR -6, R-15 RESIDENTIAL F- --------- -- E T 16 D.B. 109 1304 / 046B4 -02 -OB -00500 GOLDBERG, GLENN 5 & LE�SLIE P BRYAN D.B. 1873 PG. 032 R-6, R-1 5 RESIDENTIAL U) 8, .303 R 0 046B4 -02 -OB -00600 MaTIMERSTORF, RALF D3, PG, 5716 R-6, R-15 RESIDENTIAL s -------- -17 046134-02-013-00700 AVIDOR, ELYAHU OR ELISS5A ROSENBERG D,B, 1883 PG, 727 �R-6, R-15 RESIDENTIAL 0 uJ T 04654 -02 -OB -00800 4AVIDOR, eLYAHU OR ELISS�A ROSENBERG D,B, 1883 PG, 730 u Lu R-6, R-15 RESIDENTIAL > 0 I046B4-02-05-00900 �KAMINER, HELENE M D,B, 3209 PG. 323 R-6, R-15 RESIDENTIAL V U . .... ...... ........... 0 046134-02-013-01000 YOUSUF, ASLAM OR PHRARWAN P R-15 RESIDENTIAL .......... B, 3 570 P'G,71511. w I046154 -02 -OC -00100 HEPPNER, MICHELLE OR LEEE E WILLIAMS DiB� 3507 PG, 657 �R-6, R-15 RESIDENMAL I i f - "x , �1 �1< X . . . . ....... ..... ........ Q) 046B4 -02 -OC -00200 -c E R-6, P-15 RESIDENTIAL GAO, XIY, LAN D�B� 3872 PG� 630 y 046B4 -02 -OC -00300 FRASER, ANDREW L OR BEITH K DtB� 2820 PG, 640 R-6, R-15 RESIDENTIAL z C) 0 IGRAPHIC SCAEE 046B4 -02 -OD -00100 JIANG, XIAOFENG OR PEIZfHEN WENG D,B� 3856 PG, 394 R-6� R-15 RESIDENTIAL AA IICN NOTES: 046134 -02 -OD -00200 DAW KINS, KATIA D.B� 3372 PG. 200 R-6, R-15 RESIDENTIAL u 50 0 24 50 100 200 BB ui IIE 046134-02-00-00300 HAMRICK, LARKIN DiS. 3886 PG. 099 R-6, R-1 5 RESIDENTIAL Lu :D .......... . . ....... cc, 0 C) 1. TOPOGRAPHY AND BOUNDARY SURVEY PR�QVIDED PY LINCOLN I0 V) 046114-00-00-00500 PETCHEL, ROBERT G OR KATHLEEN 0 D,8. 1685 PG. 014 :R-1, R�6 RESIDENTIAL DID SURVEYING OCTOB�11320110. IIN IT'EET FEMA MAP 04654-00-00-005AO RUNKLE PROPERTIES LLC D�B. 4103 PG. 082 R�1� R-6 RESIDENTIAL EE JOB NO. 2. NO FLOODPLAIN EXISTS ON THE SUBJE&PROPERTY, PER -- ------- I inch 50 f. -00-00-029DO MAPLE GROVE CHPISTIAN ICHURICH; BILL MACK, R-11, R-6 RESIDENTIAL I03200 DiB, 1406 PGt 729 FF u Q) #51003CO145D 102041 IC > 3. NO WPO BUFFERS EXIST\WITHIIN THE LIMITS OF THIS SITE. TL FOSTF _R& ROSER RANDOtLPH LEAKE TkS I4. 0.265 AC, CRITICAL SLOPE,,5 SHOWN ON PROPER SCALE IGG 046IB4-03-00-014AO DEANDRADE, CA5SI0 VALIINTIM D,B. 3391 PG' 640 R-10 RESIDENTIAL MENT IEXISTING A -L rj 0.100 AC. CRITICAL SLOPES TO BEIAMPACTLD WIITHbEVELO�, FOREST R-10 RES OENTIAL 3: LAKES POND 046B4-03-00-013AO MALLOW, GUY R OR MIRIAPM E D,B. 3626 PG� 064 HH =50' II04684-03-00-OOOEO BUILDERS OF ALBEMARLE ]INC DEED OF GIFT R-10 RESIDENTIAL -a 046134-03-00-012130 MULLIGAN, CHPI,5TINE A DA 17Z1 PG, 308 R-10 RESIDENTIAL SHEET NO. Cn 1046134-03-00-00GAD CRAIG BUILDERS OF ALBEWARLE INC D.B. 1444 PG. 384 R-10 RESIDENTIAL KK 2 titF-- C3 LEGEND ROADS L__ �_- A ;....�..,-_ -_ _.---_....,._r.-_m..- .-_� _ _ f ,F,BNCYAT C AAI D A R,Af 0R'IA`G i ,�, ,t � `ll - , C Wit-' / � 4.11 't 1 14 1-� y I € i �"�* '�"" __ 1� E ( j!! 22 1, r �� 111 t1 ; '2 i n.i 1 A- ,.. ; i I 4 00 it I ...I I I / f' -_ SwAr, .", t ASM a i - `----Fu "' ",i-,, F TREE FENCING n� �_,. v, -- E� r j t- -l" i 1, ilf`.fit ! x<1 T t ,--,i, ., i, I 11 lul, b ,,. A COR11 £CT TC ilitK ARI�1ORING TRIANGULAR BOARD r -£NCE ._...-__ __- __...�._ EROSION CONTROL INSPECTOR. 3.31 TEMPORARY SEEDING. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH THE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DISTURBED AREAS BY SEEDING RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR£,( WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND IMMEDIA TEL Y. SILT TRAPS ARE TO BE CLEANED WHEN 509. OF THE WET STORAGE SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN GRADE FOR A PERIOD OF MORE THAN 30 DA YS. TO REDUCE DAMAGE FROM SEDIMENT AND NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYWS RUNOFF TO DOWNSTREAM OR OFF-SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS WHICH ARE COLLEC77NG SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND EXPOSED DURING CONSTRUCTION UNTIL PERMANENT VEGETATION OR OTHER EROSION CONTROL REPAIRED IMMEDIATELY. MEASURES CAN BE ESTABLISHED. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO) BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE INO LONGER 332 PERMANENT STABILIZATION: NEEDED, SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR. THE ESTABLISHMENT OF PERENNIAL VEGETA77VE COVER ON DISTURBED AREAS BY PLANTING 21. THE E&S INSPECTOR HAS THE AUTHORITY TO ADD OR DELETE E&S CONTROLS AS SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS TO NECESSARY IN THE FIELD AS SITE CONDITIONS CHANGE. IN ADDITION, NO SEDIMEN7 PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT lS ECONOMICAL ADAPTABLE T() BASIN OR TRAP CAN BE REMOVED WITHOUT WRITTEN AUTHORIZATION. SITE CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTN177ES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. 3.35 MULCHING. APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE. TO PREVENT EROSION BY PROTECTING 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 774E SEASON SHOULD BE MULCHED USING ORGANIC MULCH. MULCH MAY BE USED TOGETHER W17H PLANTINGS OF TREES, SHRUBS, OR CERTAIN GROUND COVERS WHICH DO NOT PROVIDE ADEQUATE SOIL STABILIZATION BY THEMSELVES, CAN BE USED IN CONJUNCTION WITH TEMPORARY SEEDING. 3.38 TREE PRESERVA77ON AND PROTECTION: PROTECTION OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION AC77VITY. TO ENSURE THE SURVIVAL OF DESIRABLE TREES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WA7ERSHED PROTECTION, LANDSCAPE BEAURF/CA77ON, 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 7REE-INHABI7ED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES 3.39 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND R A TIES TO PREVENT RFA AND A/ MOVEMENT OF DUST FROM CONSTRUCTION CTI VI E TSU CEA R 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. COMPACTED SOIL ik 3' MINIMUM 24* MIN. 6' MINIMUM FILTER FABRIC ENTRENCHED 6' PERMANENT STABILIZA TION PERMANENT SEEDING WILL BE APPLIED TO ALL DISTURBED AREAS AS PER THE PERMANENT STABILIZATION OF THIS EROSION & SEDIMENT CONTROL NARRATIVE. AFTER CONSTRUCTION IS COMPLETED, ALL DISTURBED AREAS OF THE SITE WILL BE LIMED, FERTILIZED, AND SEEDED AS PER CURRENT VDO' STANDARDS. THIS SHALL CONSIST OF THE FOLLOWING, TOPSOIL - 2" DEPTH, LIME - 2 TONS/ACRE, FERTILIZER - 600 LBS/ACRE OF 15-30-15 SEED - ERNST 5311 CONSER VA TION SEED MIX - ERNMX-114 (45 LBS/ACRE PENNLAWN CREEPING RED FESCUE, 37.5 LBS/ACRE ARGIE KENTUCKY BLUEGRASS, 37.5 LBS/ACRE PARK KENTUCKY BLUEGRAS; 15 LBS/ACRE ANNUAL RYEGRASS & 15 LBS./ACRE PLEASURE PERENNIA. AFTER THESE AREAS ARE STABILIZED, THEY WILL BE MOWED AND MAINTAINED ON A REGULAR BASIS MAINTENANCE IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL IE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL. SPECIFIC A TTEN TION WILL BE GIVEN TO THE FOLL D ING ITEMS. A. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. IN ADDITION, THE COMPARTMENTS OF THE SEDIMENT BASINS WILL BE CONTINUALLY CLEANED ON A ROUTINE BASIS. B. ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT WILL PREVENT PROPER DRAINAGE. IF THE 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. DESCRIPTION OF EROSION & SEDIMENT CONTROL MEASURES: EROSION AND SEDIMENT CONTROL MEASURES.• IT IS ANTICIPATED TO USE CONSTRUC77ON ENTRANCES, DIVERSION DIKES, FIL7REXX RUNOFF DIVERSIONS, 3 SEDIMENT BASINS, 2 SEDIMENT TRAPS, AND SILT AND SUPER SILT FENCES WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE AC77VI77ES. TEMPORARY STOCKPILE AREAS WILL BE MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED FROM AREAS TO BE GRADED 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 ACT7VITIES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE. SELEC77ON 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 774ESE AREAS SHALL BE SEEDED MITI FAST GERMINA77NG VEGETA77ON IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. CONSTRUC77ON ENTRANCE: A STABILIZED PAVED CONSTRUC77ON ENTRANCE WITH A WASH RACK LOCATED AT THE POINT 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. CONSTRUCTION ROAD STABILIZAT70N: THE TEMPORARY STABILIZAT70N OF ACCESS ROADS, SUBDIVISION ROADS, PARKING AREAS, AND OTHER ON-SITE VEHICLE TRANSPORTATION ROUTES WITH 21A STONE IMMEDIATELY AFTER GRADING. TO REDUCE THE EROSION OF TEMPORARY ROADBEDS BY CONS7RUC77ON TRAFFIC AND TO REDUCE THE EROSION AND SUBSEQUENT REGARDING OF PERMANENT ROADBEDS BETWEEN THE 77ME OF INITIAL GRADING AND FINAL STABILIZATION. CONSTRUC77ON ROAD STABILIZA71ON WILL BE APPLIED TO THE PARKING AND STAGING AREA (4" DEPTH) AND AT THE ENTRANCE OF THE PROJECT (8- D EP TH). 8"DEPTH). SILT FENCE. A TEMPORARY SEDIMENT BARRIER CONSISTING 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 OPERATIONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE. 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 WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). 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 IS ECONOMICAL, ADAPTABLE TO S/7E CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIA7E PLANT MATERIALS TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONS7RUC77ON ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETA77VE COVER. TEMPORARY SEEDING: THE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DIS77JRBED 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 PROTECTION TO BARE SOILS EXPOSED DURING CONSTRUCTION UNTIL PERMANENT VEGETA77ON OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 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 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 W177-1 7HE VESCH. TEMPORARY DIVERSION DIKE: A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA WHICH DIVERTS OFF-SITE RUNOFF AWAY FROM UNPROTECTED SLOPES AND TO A STABILIZED OUTLET, OR TO DIVERT SEDIMENT -LADEN RUNOFF TO A SEDIMENT TRAPPING STRUCTURE. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS TEMPORARY SEDIMENT TRAP. A SMALL PONDING AREA, FORMED BY CONSTRUC77NG AN EARTHEN EMBANKMENT WITH A STONE OUTLET ACROSS A DRAINAGE SWALE, TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS FOR ENOUGH 77ME TO ALLOW MOST TO THE SUSPENDED SOLIDS TO SET7LE OUT. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. TEMPORARY SEDIMENT BASIN: A TEMPORARY BARRIER OR DAM WITH CON7ROLLED STORMWATER RELEASE STRUCTURES WHICH IS FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. IT IS USED TO DETAIN SEDIMENT -LADEN RUNOFF FROM DRAINAGE AREAS 3 ACRES OR GREATER FOR ENOUGH 77ME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT. 1T CAN BE CONSTRUCTED ONLY WHERE THERE IS SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY MAXIMUM EFFECTIVE E LIFE IS 18 MONTHS UNLESS DESIGNED AS A PERMANENT POND BY A QUALIFIED PROFESSIONAL. OUTLET PROTECTION. THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/OR S77LLING BASINS BELOW STORM DRAIN OUTLETS TO REDUCE EROSION AND UNDER- CUTING FROM SCOURING AT OU7LETS AND TO REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS RECEIVING CHANNELS BELOW THESE OUTLETS SAFETY FENCE.• A PR07EC77VE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL MEASURE. TURBIDITY CURTAIN. A BARRIER DESIGNED TO RESTRICT THE FLOW OF SEDIMENT -LADEN STORMWATER RUNOFF FROM A CONSTRUC77ON SITE, TO KEEP IT CONTAINED IN A LIMITED AREA, AND ALLOW SEDIMENT TO SETTLE. CHECK DAM: A DAM ALONG A DITCH WHICH REDUCES VELOCITY AND THUS PREVENTS EROSION AND ALLOWS SEDIMENT -LADEN RUNOFF TO SETTLE. TEMPORARY SEEDING.• ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIA TEL Y FOLLOWING GRADING. SELECTION OF THE SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR AND WILL BE APPLIED TO DISTURBED ARES THA T WILL NOT BE BROUGHT TO FINAL GRADE WITHIN 30 DAYS. PLANTS SHOULD BE SELECTED APPROPRIATE TO THE SEASON AND SITE CONDITIONS FROM TABLES 3 31 B AND 3.31C. NOTE THAT TABLE 3.31 B PRESENTS PLANTS WHICH CAN BE USED WITHOUT EXTENSIVE EVALUATION OF SITE CONDITIONS, TABLE 3.31 C PRESENTS MORE IN-DEPTH INFORMATION ON THE PLANT MATERIALS. TO CONTROL EROSION ON BARE SOIL SURFACES, PLANTS MUST BE ABLE TO GERMINATE AND GROW. SEEDBED PREPARATION IS ESSENTIAL. AN EVALUATION SHOULD BE CONDUCTED TO DETERMINE IF LIME IS NECESSARY FOR TEMPORA R Y SEEDING. TABLE 3.31 A MA Y BE USED TO DETERMINE THE ACTUAL NEED ALONG WITH SUGGESTED APPLICATION RATES. FERTILIZER SHALL BE APPLIED AS 600 LBS/ACRE OF 10-20-10 (14 LBS/1, 000 SQ. FT.) OR EQUIVALENT NUTRIENTS. LIME AND FERTILIZER 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 COMPACTION 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� INCHES DEEP. SMALL SEEDS, SUCH AS KENTUCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN j INCH DEEP. OTHER GRASSES AND LEGUMES SHOULD BE PLANTED FROM 4 INCH TO DEEP. SEEDINGS MADE IN FALL FOR WINTER COVER AND DURING HOT AND DRY SUMMER MONTHS SHALL BE MULCHED ACCORDING TO MULCHING, STD. & SPEC. J. J5, 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 ADEQUA7E TO PREVENT RILL EROSION WILL BE RE -SEEDED AS SOON AS SUCH AREAS ARE IDENTIFIED. EROSION CONTROL NOTES & NARRATIVE PURPOSE. THE PURPOSE OF THIS LAND DISTURBING ACTIVITY IS TO MASS GRADE THE ROAD NETWORK AND LOT PADS FOR CONSTRUCTION OF PHASES I & H OF THE ESTES PARK CONSTRUCTION PLAN. THE TOTAL AREA TO BE DISTURBED WITH THIS PHASE OF DEVELOPMENT IS 12.20 ACRES. EXISTING SITE COND177ONS: THE SITE CONTAINS AN EXISTING STREAM, RUNNING THROUGH THE CENTER OF THE PROPERTY. A SMALL PORTION OF DRAINAGE FROM WORTH CROSSING AND THE NEIGHBORING WESTERN PROPERTIES ENTERS THE SITE. A DROP INLET NORTH OF THE PROPOSED WORK ALONG THE BRIGHT BEGINNINGS DRIVE AISLE CAPTURES DRAINAGE FROM THE NORTH AND CONVEYS IT TO THE EXIS77NG STREAM. A NATURAL RIDGE EXISTS EAST OF THE PROPOSED WORK WHICH SPLITS THE SUBJECT PARCEL DRAINAGE, AND CHANNELS FLOW TO A SECOND DEPRESSED AREA TO THE EAST. THERE IS AN EXISTING STRUCTURE AND OUTBUILDING, DRIVEWAY, AND OVERHEAD ELECTRIC LINES ON THE PROPERTY. THE VEGETATION IS WOODED WITH CLEARED AREAS OF GRASS. 774E EXISTING STREAM AREA IS WOODED. ADJACENT AREAS: THIS SITE IS BORDERED BY PRIVATE RESIDENCES AND WORTH CROSSING TO THE WEST, THE BRIGHT BEGINNINGS DAY CARE AND MAPLE GROVE CHURCH TO THE NORTH, MOUBRY LANE AND PRIVATE RESIDENCES TO THE EAST, AND THE ARBOR LAKES AND FOREST LAKES COMMUNITIES TO THE SOUTH. OFFSITE LAND DISTURBANCE.• A TURBIDITY CURTAIN WILL BE INSTALLED AT THE INLET OF ESTES RUNOFF TO ARBOR LAKE AS PROFFERED. THE CONSTRUC77ON ACCESS ROAD WILL ACCESS ON PROFFIT ROAD. NO OTHER LAND DISTURBANCE SHALL OCCUR OUTSIDE THE LIMITS OF DISTURBANCE AS SHOWN. CRITICAL AREAS.• THE ,EXISTING STREAM AND DOWNSTREAM LAKE ARE CRITICAL AREAS FOR PROTECTION DURING THE CONSTRUCTION PROCESS. REDUNDANT MEASURES OF PROTECTION WILL BE APPLIED ALONG THE STREAM INCLUDING DIVERSION BERMS, SUPER SILT FENCE, FlL TREXX DIVERSIONS, AND TREE PRO TEC TION FENCING. THE TURBIDITY CURTAIN WILL BE INSTALLED AT THE ARBOR LAKE INLET TO ENSURE PROTECTION OF THIS WA TERBOD Y. SOILS. SOILS MAP IS INCORPORATED INTO THE EROSION CONTROL PLANS WITH SOILS DATA INCLUDED WITH THIS NA RRA TI VE SEQUENCE OF CONSTRU TION: 1. PHASE l: NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED. 2. PHASE l: NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT. J. PHASE /. INSTALL A VDOT STANDARD TRAFFIC BARRIER AT THE END OF THE BRIGHT BEGINNINGS DRIVE AISLE AS SHOWN ON THE PLANS. 4. PHASE l.- INSTALL THE CONS7RUCTION ENTRANCE OFF OF PROFFI T ROAD AS SHOWN ON THE PLANS WITHIN THE EXISTING ACCESS EASEMENT D.B. 2303, PG. 632. CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUC77ON 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. INSTALL THE WASH RACK UPHILL FROM PROPOSED SEDIMENT TRAP #1. INSTALL THE PARKING AND STAGING AREA WITH CONSTRUC77ON ROAD STABILIZATION. CONSTRUCT70N ROAD STABILIZATION SHALL CONSIST OF 4" OF VDOT STONE #23 GRAVEL IN THE PARKING AREA, AND 8" OF VDOT STONE #23 GRAVEL IN ANY PORTION OF THE CONSTRUCTION ENTRANCE WHICH IS UNPAVED. PARKING AND CONSTRUCTION ENTRANCE AREAS SHALL BE CLEARED OF ALL VEGETATION, ROOTS, OR OTHER OBJECTIONABLE MATERIALS BEFORE CONSTRUC77ON ROAD STABILIZA 77ON IS INSTALLED. 5. PHASE I: INSTALL THE TURBIDITY CURTAIN /N ARBOR LAKE THE CURTAIN SHALL BE INSTALLED PRIOR TO ANY UPSLOPE DISTURBANCE ASSOCIA7ED WITH THE PROPOSED DEVELOPMENT. IT WILL BE MONITORED ON A WEEKLY BASIS 6. PHASE I. INSTALL THE hVI RAL CONSTRUCTION MEASURES AS SHOWN ON THE EROSION CONTROL SHEET. THIS INCLUDES THE SUPER SILT FENCE ALONG ENVIRONMENTALLY SENSI TVE AREAS, SILT FENCE, DIVERSION BERM WITH CHECK DAMS, FIL TREXX FIL TER SOXX RUNOFF DI VERSION, TREE PROTECTION FEVCING, SEDIMENT TRAP, AND 2 SEDIMENT BASINS. THE SLOPES ASSOCIATED WITH THE SEDIMENT BASINS SHALL BE STABILIZED WITH EROSION AND SEDIMENT CONTROL MATTING IMMEDIATELY. STONE BAFFLES SHALL BE U77LIZED IN THE SEDIMENT BASINS TO COMPARTMENTALIZE THE VOLUME AND ALLOW SEDIMENT TO FILTER OUT AS IT MOVES THROUGH THE COMPARTMENTS. THE CONTRACTOR SHALL MONITER & CLEAN OUT THE FIRST CHAMBER OF EACH SEDIMENT BASIN ON A WEEKLY BASIS, WITH THE OTHER CHAMBERS BEING CLEANED OUT AS NECESSARY TO REMOVE SEDIMENT THAT HAS ACCUMULATED WITHIN THE BASIN. FAIRCLOTH SKIMMERS F'',ALL BE EMPLOYED IN BOTH SEDIMENT BASINS. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNC77ONAL 7ZF0RE UPSLOPE LAND DISTURBANCE TAKES PLACE. 7. PHASE I. INSTALL ANYREMAINING EROSION CONTROL ITEMS AS SHOWN ON THE EROSION AND SEDIMENT CONTROL PLAN PHASE 1, 8. PHASE I. THE COUNTY E&S INSPECTOR MUST GIVE APPROVAL TO BEGIN PHASE 2 ONLY AFTER COMPLETING PHASE 1 :AND ALL EROSION CONTROL MEASURES ARE STABILIZED. 9. PHASE !l: ONCE ALL FHE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE EROSION CONTROL PLAN AND Th'E INSPECTOR HAS APPROVED THE EROSION CONTROL MEASURES, THE CONTRACTOR CAN BEGIN GRADING OPERATIONS STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES,, AND DIVERSIONS IMMEDIA TEL Y AFTER INSTALLATION. 10. PHASE U: ROUGH GRADE THE SITE TO THE CONTOURS SHOWN ON THE EROSION CONTROL PLAN. 11. PHASE Il: PERMANENT' (?R TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TACKIFIERS SHALL BE USED IN SEEDING AND SOIL STABILIZATION APPLICATIONS 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. 12. PHASE Ill: INSTALL THE PROPOSED STREAM CROSSING CULVERT, ENDWALLS, AND RIPRAP OUTFALL. CiULVERT INLET PROTECTION SHALL BE APPLIED TO THE UPSTREAM CULVERT OPENING. 13 PHASE Ill: INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE EROSION CONTROL SHEET THIS INCLUDES SEDIMENT BASIN 3, AND SEDIMENT TRAP 2, SUPER SILT FENCE ALONG THE CREEK AND ENVIRONMENTALLY SENSI TVE AREAS, SILT FENCE, DIVERSION BERM WITH CHECK DAMS, FIL TREXX FILTER S'OXX RUNOFF DIVERSION, AND TREE PROTECTION FENCING. THE SLOPES ASSOCIATED WITH THE SEDIMENT BASINS AND TRAPS SHALL BE STABILIZED WITH EROSION AND SEDIMENT CONTROL MATTING IMMEDIA TEL Y. STONE BAFFLES SHALL BE UTILIZED IN THE SEDIMENT BASINS TO COMPARTMENTALIZE THE VOLUME AND ALLOW SEDIMENT TO FILTER OUT AS IT MOVES THROUGH THE COMPARTMENTS THE CONTRACTOR SHALL CLEAN OUT THE FIRST CHAMBER OF EACH SEDIMENT BASIN ON A WEEKLY BASIS, WITH THE OTHER CHAMBERS BEING CLEANED OUT AS NECESSARY TO REMOVE SEDIMENT THAT HAS ACCUMULATED WITHIN THE BASIN. FAIRCLOTH SKIMMERS SHALL BE EMPLOYED /N BOTH SEDIMENT BASINS 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. 14. PHASE Ill: ROUGH GRADE THE EASTERN PORTION OF THE SITE TO THE CONTOURS SHOWN ON THE EIROSION AND SEDIMENT CONTROL PLAN. 15. PHASE 11/: PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SLFVEN DAYS AFTER FINAL GRADE 1S REACHED ON ANY PORTION OF THE SITE. TACKIFIERS SHALL BE USED IN SEEDING AND SOIL STABILIZATION APPLICATIONS. TEMPORARY SOIL STABLIZA77ON SHALL BE AIPPL1ED WI THIN SEVEN DA YS TO DENUDED AREAS THA T MA Y NOT BE A T FINAL GRADE, BUT WILL REMAIN D(ORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AfREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 16. PEASE 111: ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN REMOVE THE EROSION CONTROL MEASURES NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AIREAS ARE STABILIZED AND THE INSPECTOR GRANTS PERMISSION. 17. PHASE Ill: MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED 1N THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ATDM/NISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 18. PHASE 111: ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DA YS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UAVLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DPISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. ESCR SOIL DIPTION 278-ELIOAK LOAM, 29 TO 79 SLOPES. SOIL IS WELL DRAINED, WITH MORE THAN 80 IN. DEPTH TO THE WATER TABLE. MADE FROM RESIDUUM WEATHERED FROM MICA SCHIST, THIS SOIL HAS CONVEX DOWN AND ACROSS -SLOPE SHAPE. THIS SOIL HAS NO FREQUENCY OF PONDING OR FLOODING AND A MODERATELY HIGH TO HIGH KSAT W/TH MODERATE WATER CAPACITY. 28C3 - ELIOAK CLAY LOAM -79 TO 159 SLOPES. SOIL IS WELL DRAINED, WITH MORE T1 -/ AN 80 INCHES TO THE WATER TABLE. MADE FROM RESIDUUM WEATHERED FROM MICA SCHIST, THIS SOIL HAS CONVEX DOWN AND ACROSS -SLOPE SHAPE. NO FREQUENCY OF PONDING OR FLOODING, LOW WA TER CAPACI TY, AND MODERA TEL Y HIGH TO HIGH KSA T. 34C - GLENELG LOAM, 7 TO 15 PERCENT SLOPES, SOIL IS WELL DRAINED, MODERA TEL Y HIGH TO HIGH KSA T MORE THAN 80 INCHES TO THE WA TER TABLE, NO FREQUENCY OF PONDING OR FLOODING, HIGH WATER CAPACITY. 88 - UDORTHENTS, LOAMY -2q TO 259 SLOPES SOIL FROM RESIDUUM WEATHERED FROM GRANITE AND GNEISS, WITH MORE THAN 80 INCHES TO THE WATER TABLE, NO FLOODING OR PONDING, AND CONVEX DOWN AND ACROSS -.SLOPE SHAPE. I, _� --I H WN � _11 ' T" `a 14 SCOTT R. COLLINS�, ? No. 35791 ,�- O ��SSjONAL �'��1 EROSION & SEDIMENT CONTROL EROSION CONTROL NOTES PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LANG MEASURES: UNPROTECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET. TO DIVERT REFER ;NCE FOR ALL REGIONS - DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. ES -1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION EXISTING CULVERT STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN ACCORDANCE AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND CULVERT WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. STRUCTURAL MAINTAINED ACCORD/NG TO MINIMUM STANDARDS AND SPECIFICATIONS OF MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGIN!) PRACTICES USED IN THIS SECT70N CONSIST OF THE FOLLOWING: THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA DROP INLET & STRUCTURE NO. EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL SITE DURING CONSTRUCTION. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 301 SAFETY FENCE REGULATIONS. CURB A PROTECTIVE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. ES -2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR A! TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE CURB & GUTTER APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO R UNSAFE BY VIRTUE OF POTENTIAL ACCESS BY THE PUBLIC. THE FINAL INSPECTION. PROPOSED PAVEMENT A COPY OF 774E APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. ES -J. -ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR STONE OUTLET. TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS LONG ENOUGH TO ALLOW THE MAJORITY OF' THE SEDIMENT TO SET7LE OUT. USE BELOW DISTURBED 3.02 CONSTRUC77ON ENTRANCE. TO OR AS THE FIRST STEP IN CLEARING. EC -3A DITCH A STABILIZED PAVED CONSTRUCTION EN7RANCE Wl7H A WASH RACK LOCATED AT POINTS OF ES -4:A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAID` VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION SITE. TO REDUCE 7HE AMOUNT OF BE MAINTAINED ON THE SITE AT ALL TIMES. DEPTH OF EC -3A DITCH MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. ES -5: PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN EITHER INDEPENDENTLY OR IN CONJUNC170N WITH A TEMPORARY DIVERSION DIKE. CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE INDICATED ON THESE PLANS INCLUDING BUT NOT LIMITED TO, OFF-SITE Ip IP INLET PROTECTION 3.07 AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS EC -2 DITCH BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A Z 3.03 C0NS7RUC770N ROAD STABILIZATION: SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND DEPTH OF EC -2 DITCH THE 7EMPORARY STABILIZA77ON OF ACCESS ROADS, SUBDIVISION- ROADS, PARKING AREAS, AND APPROVAL BY THE PLAN APPROVING AUTHORITY. DD 00 TEMPORARY DIVERSION DIKE 3.09 OTHER SITE VEHICLE TRANSPORTATION ROUTES WITH STONE IMMEDIATELY AFTER GRADING. TO ES -6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EARTH DITCH REDUCE EROSION OF TEMPORARY ROADBEDS BY CONSTRUCTION TRAFFIC DURING WET WEATHER EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND 8. AND TO REDUCE EROSION AND SUBSEQUENT REGARDING OF PERMANENT ROADBEDS BETWEEN SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. DRIVEWAY CULVERT THE TIME OF 1N177AL GRADING AND FINAL STABILIZATION. USE WHEREVER STONE -BASE ROADS ES -7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL 9. OR PARKING AREAS ARE CONSTRUCTED, WHETHER PERMANENT OR TEMPORARY, FOR USE BY MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIV177ES AND DURING BENCH MARK CONSTRUCTION 7RAFFlG SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR ES -8: DURING DEWA TERING OPERA TIONS, WA TER WILL BE PUMPED INTO AN CLEARING LIMITS J. 05 SILT FENCE. A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED APPROVED WATER FILTERING DEVICE. PS PS PERMANENT STABILIZATION 3.32 ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED, TO INTERCEPT AND DETAIN ES -9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES VDOT STANDARD STOP SIGN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS IN PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE, AND TO DECREASE THE VELOCITY OF ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS EXISTING CONTOUR SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIA TEL Y. /,-(Mu)--/ SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT PROPOSED CONTOUR LADEN RUNOFF FROM SHEET FLOW AS INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY SECTIONS. AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & TOP C -a -� TREE PROTECTION 3.38 TOP PROPOSED SPOT ELEVA 77ON SEDIMENT CONTROL HANDBOOK (VESCH). /^+/^�V EROSION CONTROL ROL NOTES TBC DENOTES TOP/BACK OF CURB J.09 TEMPORARY DIVERSION DIKE: 14. TAB DENOTES TOP OF BOX A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE ;....�..,-_ -_ _.---_....,._r.-_m..- .-_� _ _ f ,F,BNCYAT C AAI D A R,Af 0R'IA`G i ,�, ,t � `ll - , C Wit-' / � 4.11 't 1 14 1-� y I € i �"�* '�"" __ 1� E ( j!! 22 1, r �� 111 t1 ; '2 i n.i 1 A- ,.. ; i I 4 00 it I ...I I I / f' -_ SwAr, .", t ASM a i - `----Fu "' ",i-,, F TREE FENCING n� �_,. v, -- E� r j t- -l" i 1, ilf`.fit ! x<1 T t ,--,i, ., i, I 11 lul, b ,,. A COR11 £CT TC ilitK ARI�1ORING TRIANGULAR BOARD r -£NCE ._...-__ __- __...�._ EROSION CONTROL INSPECTOR. 3.31 TEMPORARY SEEDING. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH THE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DISTURBED AREAS BY SEEDING RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR£,( WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND IMMEDIA TEL Y. SILT TRAPS ARE TO BE CLEANED WHEN 509. OF THE WET STORAGE SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN GRADE FOR A PERIOD OF MORE THAN 30 DA YS. TO REDUCE DAMAGE FROM SEDIMENT AND NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYWS RUNOFF TO DOWNSTREAM OR OFF-SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS WHICH ARE COLLEC77NG SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND EXPOSED DURING CONSTRUCTION UNTIL PERMANENT VEGETATION OR OTHER EROSION CONTROL REPAIRED IMMEDIATELY. MEASURES CAN BE ESTABLISHED. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO) BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE INO LONGER 332 PERMANENT STABILIZATION: NEEDED, SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR. THE ESTABLISHMENT OF PERENNIAL VEGETA77VE COVER ON DISTURBED AREAS BY PLANTING 21. THE E&S INSPECTOR HAS THE AUTHORITY TO ADD OR DELETE E&S CONTROLS AS SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS TO NECESSARY IN THE FIELD AS SITE CONDITIONS CHANGE. IN ADDITION, NO SEDIMEN7 PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT lS ECONOMICAL ADAPTABLE T() BASIN OR TRAP CAN BE REMOVED WITHOUT WRITTEN AUTHORIZATION. SITE CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTN177ES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. 3.35 MULCHING. APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE. TO PREVENT EROSION BY PROTECTING 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 774E SEASON SHOULD BE MULCHED USING ORGANIC MULCH. MULCH MAY BE USED TOGETHER W17H PLANTINGS OF TREES, SHRUBS, OR CERTAIN GROUND COVERS WHICH DO NOT PROVIDE ADEQUATE SOIL STABILIZATION BY THEMSELVES, CAN BE USED IN CONJUNCTION WITH TEMPORARY SEEDING. 3.38 TREE PRESERVA77ON AND PROTECTION: PROTECTION OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION AC77VITY. TO ENSURE THE SURVIVAL OF DESIRABLE TREES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WA7ERSHED PROTECTION, LANDSCAPE BEAURF/CA77ON, 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 7REE-INHABI7ED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES 3.39 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND R A TIES TO PREVENT RFA AND A/ MOVEMENT OF DUST FROM CONSTRUCTION CTI VI E TSU CEA R 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. COMPACTED SOIL ik 3' MINIMUM 24* MIN. 6' MINIMUM FILTER FABRIC ENTRENCHED 6' PERMANENT STABILIZA TION PERMANENT SEEDING WILL BE APPLIED TO ALL DISTURBED AREAS AS PER THE PERMANENT STABILIZATION OF THIS EROSION & SEDIMENT CONTROL NARRATIVE. AFTER CONSTRUCTION IS COMPLETED, ALL DISTURBED AREAS OF THE SITE WILL BE LIMED, FERTILIZED, AND SEEDED AS PER CURRENT VDO' STANDARDS. THIS SHALL CONSIST OF THE FOLLOWING, TOPSOIL - 2" DEPTH, LIME - 2 TONS/ACRE, FERTILIZER - 600 LBS/ACRE OF 15-30-15 SEED - ERNST 5311 CONSER VA TION SEED MIX - ERNMX-114 (45 LBS/ACRE PENNLAWN CREEPING RED FESCUE, 37.5 LBS/ACRE ARGIE KENTUCKY BLUEGRASS, 37.5 LBS/ACRE PARK KENTUCKY BLUEGRAS; 15 LBS/ACRE ANNUAL RYEGRASS & 15 LBS./ACRE PLEASURE PERENNIA. AFTER THESE AREAS ARE STABILIZED, THEY WILL BE MOWED AND MAINTAINED ON A REGULAR BASIS MAINTENANCE IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL IE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL. SPECIFIC A TTEN TION WILL BE GIVEN TO THE FOLL D ING ITEMS. A. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. IN ADDITION, THE COMPARTMENTS OF THE SEDIMENT BASINS WILL BE CONTINUALLY CLEANED ON A ROUTINE BASIS. B. ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT WILL PREVENT PROPER DRAINAGE. IF THE 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. DESCRIPTION OF EROSION & SEDIMENT CONTROL MEASURES: EROSION AND SEDIMENT CONTROL MEASURES.• IT IS ANTICIPATED TO USE CONSTRUC77ON ENTRANCES, DIVERSION DIKES, FIL7REXX RUNOFF DIVERSIONS, 3 SEDIMENT BASINS, 2 SEDIMENT TRAPS, AND SILT AND SUPER SILT FENCES WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE AC77VI77ES. TEMPORARY STOCKPILE AREAS WILL BE MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED FROM AREAS TO BE GRADED 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 ACT7VITIES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE. SELEC77ON 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 774ESE AREAS SHALL BE SEEDED MITI FAST GERMINA77NG VEGETA77ON IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. CONSTRUC77ON ENTRANCE: A STABILIZED PAVED CONSTRUC77ON ENTRANCE WITH A WASH RACK LOCATED AT THE POINT 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. CONSTRUCTION ROAD STABILIZAT70N: THE TEMPORARY STABILIZAT70N OF ACCESS ROADS, SUBDIVISION ROADS, PARKING AREAS, AND OTHER ON-SITE VEHICLE TRANSPORTATION ROUTES WITH 21A STONE IMMEDIATELY AFTER GRADING. TO REDUCE THE EROSION OF TEMPORARY ROADBEDS BY CONS7RUC77ON TRAFFIC AND TO REDUCE THE EROSION AND SUBSEQUENT REGARDING OF PERMANENT ROADBEDS BETWEEN THE 77ME OF INITIAL GRADING AND FINAL STABILIZATION. CONSTRUC77ON ROAD STABILIZA71ON WILL BE APPLIED TO THE PARKING AND STAGING AREA (4" DEPTH) AND AT THE ENTRANCE OF THE PROJECT (8- D EP TH). 8"DEPTH). SILT FENCE. A TEMPORARY SEDIMENT BARRIER CONSISTING 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 OPERATIONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE. 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 WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). 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 IS ECONOMICAL, ADAPTABLE TO S/7E CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIA7E PLANT MATERIALS TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONS7RUC77ON ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETA77VE COVER. TEMPORARY SEEDING: THE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DIS77JRBED 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 PROTECTION TO BARE SOILS EXPOSED DURING CONSTRUCTION UNTIL PERMANENT VEGETA77ON OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 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 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 W177-1 7HE VESCH. TEMPORARY DIVERSION DIKE: A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA WHICH DIVERTS OFF-SITE RUNOFF AWAY FROM UNPROTECTED SLOPES AND TO A STABILIZED OUTLET, OR TO DIVERT SEDIMENT -LADEN RUNOFF TO A SEDIMENT TRAPPING STRUCTURE. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS TEMPORARY SEDIMENT TRAP. A SMALL PONDING AREA, FORMED BY CONSTRUC77NG AN EARTHEN EMBANKMENT WITH A STONE OUTLET ACROSS A DRAINAGE SWALE, TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS FOR ENOUGH 77ME TO ALLOW MOST TO THE SUSPENDED SOLIDS TO SET7LE OUT. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. TEMPORARY SEDIMENT BASIN: A TEMPORARY BARRIER OR DAM WITH CON7ROLLED STORMWATER RELEASE STRUCTURES WHICH IS FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. IT IS USED TO DETAIN SEDIMENT -LADEN RUNOFF FROM DRAINAGE AREAS 3 ACRES OR GREATER FOR ENOUGH 77ME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT. 1T CAN BE CONSTRUCTED ONLY WHERE THERE IS SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY MAXIMUM EFFECTIVE E LIFE IS 18 MONTHS UNLESS DESIGNED AS A PERMANENT POND BY A QUALIFIED PROFESSIONAL. OUTLET PROTECTION. THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/OR S77LLING BASINS BELOW STORM DRAIN OUTLETS TO REDUCE EROSION AND UNDER- CUTING FROM SCOURING AT OU7LETS AND TO REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS RECEIVING CHANNELS BELOW THESE OUTLETS SAFETY FENCE.• A PR07EC77VE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL MEASURE. TURBIDITY CURTAIN. A BARRIER DESIGNED TO RESTRICT THE FLOW OF SEDIMENT -LADEN STORMWATER RUNOFF FROM A CONSTRUC77ON SITE, TO KEEP IT CONTAINED IN A LIMITED AREA, AND ALLOW SEDIMENT TO SETTLE. CHECK DAM: A DAM ALONG A DITCH WHICH REDUCES VELOCITY AND THUS PREVENTS EROSION AND ALLOWS SEDIMENT -LADEN RUNOFF TO SETTLE. TEMPORARY SEEDING.• ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIA TEL Y FOLLOWING GRADING. SELECTION OF THE SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR AND WILL BE APPLIED TO DISTURBED ARES THA T WILL NOT BE BROUGHT TO FINAL GRADE WITHIN 30 DAYS. PLANTS SHOULD BE SELECTED APPROPRIATE TO THE SEASON AND SITE CONDITIONS FROM TABLES 3 31 B AND 3.31C. NOTE THAT TABLE 3.31 B PRESENTS PLANTS WHICH CAN BE USED WITHOUT EXTENSIVE EVALUATION OF SITE CONDITIONS, TABLE 3.31 C PRESENTS MORE IN-DEPTH INFORMATION ON THE PLANT MATERIALS. TO CONTROL EROSION ON BARE SOIL SURFACES, PLANTS MUST BE ABLE TO GERMINATE AND GROW. SEEDBED PREPARATION IS ESSENTIAL. AN EVALUATION SHOULD BE CONDUCTED TO DETERMINE IF LIME IS NECESSARY FOR TEMPORA R Y SEEDING. TABLE 3.31 A MA Y BE USED TO DETERMINE THE ACTUAL NEED ALONG WITH SUGGESTED APPLICATION RATES. FERTILIZER SHALL BE APPLIED AS 600 LBS/ACRE OF 10-20-10 (14 LBS/1, 000 SQ. FT.) OR EQUIVALENT NUTRIENTS. LIME AND FERTILIZER 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 COMPACTION 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� INCHES DEEP. SMALL SEEDS, SUCH AS KENTUCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN j INCH DEEP. OTHER GRASSES AND LEGUMES SHOULD BE PLANTED FROM 4 INCH TO DEEP. SEEDINGS MADE IN FALL FOR WINTER COVER AND DURING HOT AND DRY SUMMER MONTHS SHALL BE MULCHED ACCORDING TO MULCHING, STD. & SPEC. J. J5, 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 ADEQUA7E TO PREVENT RILL EROSION WILL BE RE -SEEDED AS SOON AS SUCH AREAS ARE IDENTIFIED. EROSION CONTROL NOTES & NARRATIVE PURPOSE. THE PURPOSE OF THIS LAND DISTURBING ACTIVITY IS TO MASS GRADE THE ROAD NETWORK AND LOT PADS FOR CONSTRUCTION OF PHASES I & H OF THE ESTES PARK CONSTRUCTION PLAN. THE TOTAL AREA TO BE DISTURBED WITH THIS PHASE OF DEVELOPMENT IS 12.20 ACRES. EXISTING SITE COND177ONS: THE SITE CONTAINS AN EXISTING STREAM, RUNNING THROUGH THE CENTER OF THE PROPERTY. A SMALL PORTION OF DRAINAGE FROM WORTH CROSSING AND THE NEIGHBORING WESTERN PROPERTIES ENTERS THE SITE. A DROP INLET NORTH OF THE PROPOSED WORK ALONG THE BRIGHT BEGINNINGS DRIVE AISLE CAPTURES DRAINAGE FROM THE NORTH AND CONVEYS IT TO THE EXIS77NG STREAM. A NATURAL RIDGE EXISTS EAST OF THE PROPOSED WORK WHICH SPLITS THE SUBJECT PARCEL DRAINAGE, AND CHANNELS FLOW TO A SECOND DEPRESSED AREA TO THE EAST. THERE IS AN EXISTING STRUCTURE AND OUTBUILDING, DRIVEWAY, AND OVERHEAD ELECTRIC LINES ON THE PROPERTY. THE VEGETATION IS WOODED WITH CLEARED AREAS OF GRASS. 774E EXISTING STREAM AREA IS WOODED. ADJACENT AREAS: THIS SITE IS BORDERED BY PRIVATE RESIDENCES AND WORTH CROSSING TO THE WEST, THE BRIGHT BEGINNINGS DAY CARE AND MAPLE GROVE CHURCH TO THE NORTH, MOUBRY LANE AND PRIVATE RESIDENCES TO THE EAST, AND THE ARBOR LAKES AND FOREST LAKES COMMUNITIES TO THE SOUTH. OFFSITE LAND DISTURBANCE.• A TURBIDITY CURTAIN WILL BE INSTALLED AT THE INLET OF ESTES RUNOFF TO ARBOR LAKE AS PROFFERED. THE CONSTRUC77ON ACCESS ROAD WILL ACCESS ON PROFFIT ROAD. NO OTHER LAND DISTURBANCE SHALL OCCUR OUTSIDE THE LIMITS OF DISTURBANCE AS SHOWN. CRITICAL AREAS.• THE ,EXISTING STREAM AND DOWNSTREAM LAKE ARE CRITICAL AREAS FOR PROTECTION DURING THE CONSTRUCTION PROCESS. REDUNDANT MEASURES OF PROTECTION WILL BE APPLIED ALONG THE STREAM INCLUDING DIVERSION BERMS, SUPER SILT FENCE, FlL TREXX DIVERSIONS, AND TREE PRO TEC TION FENCING. THE TURBIDITY CURTAIN WILL BE INSTALLED AT THE ARBOR LAKE INLET TO ENSURE PROTECTION OF THIS WA TERBOD Y. SOILS. SOILS MAP IS INCORPORATED INTO THE EROSION CONTROL PLANS WITH SOILS DATA INCLUDED WITH THIS NA RRA TI VE SEQUENCE OF CONSTRU TION: 1. PHASE l: NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED. 2. PHASE l: NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT. J. PHASE /. INSTALL A VDOT STANDARD TRAFFIC BARRIER AT THE END OF THE BRIGHT BEGINNINGS DRIVE AISLE AS SHOWN ON THE PLANS. 4. PHASE l.- INSTALL THE CONS7RUCTION ENTRANCE OFF OF PROFFI T ROAD AS SHOWN ON THE PLANS WITHIN THE EXISTING ACCESS EASEMENT D.B. 2303, PG. 632. CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUC77ON 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. INSTALL THE WASH RACK UPHILL FROM PROPOSED SEDIMENT TRAP #1. INSTALL THE PARKING AND STAGING AREA WITH CONSTRUC77ON ROAD STABILIZATION. CONSTRUCT70N ROAD STABILIZATION SHALL CONSIST OF 4" OF VDOT STONE #23 GRAVEL IN THE PARKING AREA, AND 8" OF VDOT STONE #23 GRAVEL IN ANY PORTION OF THE CONSTRUCTION ENTRANCE WHICH IS UNPAVED. PARKING AND CONSTRUCTION ENTRANCE AREAS SHALL BE CLEARED OF ALL VEGETATION, ROOTS, OR OTHER OBJECTIONABLE MATERIALS BEFORE CONSTRUC77ON ROAD STABILIZA 77ON IS INSTALLED. 5. PHASE I: INSTALL THE TURBIDITY CURTAIN /N ARBOR LAKE THE CURTAIN SHALL BE INSTALLED PRIOR TO ANY UPSLOPE DISTURBANCE ASSOCIA7ED WITH THE PROPOSED DEVELOPMENT. IT WILL BE MONITORED ON A WEEKLY BASIS 6. PHASE I. INSTALL THE hVI RAL CONSTRUCTION MEASURES AS SHOWN ON THE EROSION CONTROL SHEET. THIS INCLUDES THE SUPER SILT FENCE ALONG ENVIRONMENTALLY SENSI TVE AREAS, SILT FENCE, DIVERSION BERM WITH CHECK DAMS, FIL TREXX FIL TER SOXX RUNOFF DI VERSION, TREE PROTECTION FEVCING, SEDIMENT TRAP, AND 2 SEDIMENT BASINS. THE SLOPES ASSOCIATED WITH THE SEDIMENT BASINS SHALL BE STABILIZED WITH EROSION AND SEDIMENT CONTROL MATTING IMMEDIATELY. STONE BAFFLES SHALL BE U77LIZED IN THE SEDIMENT BASINS TO COMPARTMENTALIZE THE VOLUME AND ALLOW SEDIMENT TO FILTER OUT AS IT MOVES THROUGH THE COMPARTMENTS. THE CONTRACTOR SHALL MONITER & CLEAN OUT THE FIRST CHAMBER OF EACH SEDIMENT BASIN ON A WEEKLY BASIS, WITH THE OTHER CHAMBERS BEING CLEANED OUT AS NECESSARY TO REMOVE SEDIMENT THAT HAS ACCUMULATED WITHIN THE BASIN. FAIRCLOTH SKIMMERS F'',ALL BE EMPLOYED IN BOTH SEDIMENT BASINS. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNC77ONAL 7ZF0RE UPSLOPE LAND DISTURBANCE TAKES PLACE. 7. PHASE I. INSTALL ANYREMAINING EROSION CONTROL ITEMS AS SHOWN ON THE EROSION AND SEDIMENT CONTROL PLAN PHASE 1, 8. PHASE I. THE COUNTY E&S INSPECTOR MUST GIVE APPROVAL TO BEGIN PHASE 2 ONLY AFTER COMPLETING PHASE 1 :AND ALL EROSION CONTROL MEASURES ARE STABILIZED. 9. PHASE !l: ONCE ALL FHE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE EROSION CONTROL PLAN AND Th'E INSPECTOR HAS APPROVED THE EROSION CONTROL MEASURES, THE CONTRACTOR CAN BEGIN GRADING OPERATIONS STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES,, AND DIVERSIONS IMMEDIA TEL Y AFTER INSTALLATION. 10. PHASE U: ROUGH GRADE THE SITE TO THE CONTOURS SHOWN ON THE EROSION CONTROL PLAN. 11. PHASE Il: PERMANENT' (?R TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TACKIFIERS SHALL BE USED IN SEEDING AND SOIL STABILIZATION APPLICATIONS 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. 12. PHASE Ill: INSTALL THE PROPOSED STREAM CROSSING CULVERT, ENDWALLS, AND RIPRAP OUTFALL. CiULVERT INLET PROTECTION SHALL BE APPLIED TO THE UPSTREAM CULVERT OPENING. 13 PHASE Ill: INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE EROSION CONTROL SHEET THIS INCLUDES SEDIMENT BASIN 3, AND SEDIMENT TRAP 2, SUPER SILT FENCE ALONG THE CREEK AND ENVIRONMENTALLY SENSI TVE AREAS, SILT FENCE, DIVERSION BERM WITH CHECK DAMS, FIL TREXX FILTER S'OXX RUNOFF DIVERSION, AND TREE PROTECTION FENCING. THE SLOPES ASSOCIATED WITH THE SEDIMENT BASINS AND TRAPS SHALL BE STABILIZED WITH EROSION AND SEDIMENT CONTROL MATTING IMMEDIA TEL Y. STONE BAFFLES SHALL BE UTILIZED IN THE SEDIMENT BASINS TO COMPARTMENTALIZE THE VOLUME AND ALLOW SEDIMENT TO FILTER OUT AS IT MOVES THROUGH THE COMPARTMENTS THE CONTRACTOR SHALL CLEAN OUT THE FIRST CHAMBER OF EACH SEDIMENT BASIN ON A WEEKLY BASIS, WITH THE OTHER CHAMBERS BEING CLEANED OUT AS NECESSARY TO REMOVE SEDIMENT THAT HAS ACCUMULATED WITHIN THE BASIN. FAIRCLOTH SKIMMERS SHALL BE EMPLOYED /N BOTH SEDIMENT BASINS 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. 14. PHASE Ill: ROUGH GRADE THE EASTERN PORTION OF THE SITE TO THE CONTOURS SHOWN ON THE EIROSION AND SEDIMENT CONTROL PLAN. 15. PHASE 11/: PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SLFVEN DAYS AFTER FINAL GRADE 1S REACHED ON ANY PORTION OF THE SITE. TACKIFIERS SHALL BE USED IN SEEDING AND SOIL STABILIZATION APPLICATIONS. TEMPORARY SOIL STABLIZA77ON SHALL BE AIPPL1ED WI THIN SEVEN DA YS TO DENUDED AREAS THA T MA Y NOT BE A T FINAL GRADE, BUT WILL REMAIN D(ORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AfREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 16. PEASE 111: ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN REMOVE THE EROSION CONTROL MEASURES NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AIREAS ARE STABILIZED AND THE INSPECTOR GRANTS PERMISSION. 17. PHASE Ill: MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED 1N THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ATDM/NISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 18. PHASE 111: ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DA YS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UAVLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DPISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. ESCR SOIL DIPTION 278-ELIOAK LOAM, 29 TO 79 SLOPES. SOIL IS WELL DRAINED, WITH MORE THAN 80 IN. DEPTH TO THE WATER TABLE. MADE FROM RESIDUUM WEATHERED FROM MICA SCHIST, THIS SOIL HAS CONVEX DOWN AND ACROSS -SLOPE SHAPE. THIS SOIL HAS NO FREQUENCY OF PONDING OR FLOODING AND A MODERATELY HIGH TO HIGH KSAT W/TH MODERATE WATER CAPACITY. 28C3 - ELIOAK CLAY LOAM -79 TO 159 SLOPES. SOIL IS WELL DRAINED, WITH MORE T1 -/ AN 80 INCHES TO THE WATER TABLE. MADE FROM RESIDUUM WEATHERED FROM MICA SCHIST, THIS SOIL HAS CONVEX DOWN AND ACROSS -SLOPE SHAPE. NO FREQUENCY OF PONDING OR FLOODING, LOW WA TER CAPACI TY, AND MODERA TEL Y HIGH TO HIGH KSA T. 34C - GLENELG LOAM, 7 TO 15 PERCENT SLOPES, SOIL IS WELL DRAINED, MODERA TEL Y HIGH TO HIGH KSA T MORE THAN 80 INCHES TO THE WA TER TABLE, NO FREQUENCY OF PONDING OR FLOODING, HIGH WATER CAPACITY. 88 - UDORTHENTS, LOAMY -2q TO 259 SLOPES SOIL FROM RESIDUUM WEATHERED FROM GRANITE AND GNEISS, WITH MORE THAN 80 INCHES TO THE WATER TABLE, NO FLOODING OR PONDING, AND CONVEX DOWN AND ACROSS -.SLOPE SHAPE. I, _� --I H WN � _11 ' T" `a 14 SCOTT R. COLLINS�, ? No. 35791 ,�- O ��SSjONAL �'��1 DISTURBED AREA. TO DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM J PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LANG T1M7?C)RAIt.Y SEF;ilING Q'LAItcT 14I ATERIALS UNPROTECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OUTLET. TO DIVERT REFER ;NCE FOR ALL REGIONS - DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. VIRGINIA EROSION & SEDIMENT CONTROL SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING FACILITY SUCH 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND EROSION CONTROL HANDBOOK SPECIFICA77ON NUMBER AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE WHEREVER STORMWATER RUNOFF MUST BE Sept. I - Feb. 15 MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGIN!) * TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON Annual Ryegrass EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR H SITE DURING CONSTRUCTION. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 - 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. SA __0 SAFETY FENCE 3.01 MONTHS OR LESS, WHICH CAN BE PROLONGED WITH PROPER MAINTENANCE J. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR A! (&cafe ser-aie) THE FIRST STEP /N CLEARING. DCE ( R CONSTRUCTION ENTRANCE 302 3.13 TEMPORARY SEDIMENT TRAP. A 7EMPORARY PONDING AREA FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A 4. A COPY OF 774E APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. ...' SF -x X_ SILT FENCE 305 STONE OUTLET. TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS LONG ENOUGH TO ALLOW THE MAJORITY OF' THE SEDIMENT TO SET7LE OUT. USE BELOW DISTURBED 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIM17ED TO, OFF-SITE BORROW OR WASTE (Setaria italica) AREAS WHERE THE TOTAL CONTRIBURNG DRAINAGE AREA IS LESS THAN 3 ACRES, WHERE THE Source: Va. DSWC AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAID` aSS -SSF-SSF- SUPER SILT FENCE W/WIRE 3.05 SEDIMENT TRAP WILL BE USED NO LONNGER THAN 18 MONTHS, AND IT MAY BE CONSTRUCTED TO THE OWNER FOR REVIEW AND APPROVAL BY 7HE PLAN APPROVING AUTHORITY. Ce EITHER INDEPENDENTLY OR IN CONJUNC170N WITH A TEMPORARY DIVERSION DIKE. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDIT70NAL EROSION Ip IP INLET PROTECTION 3.07 A 14 TEMPORAT BA SIN: CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMEN7ATION AS DERMNED BY THE PLAN APPROVING AUTHORITY BARRIEREOR DAM MTHI A CONTROLLED STORMWA7ER RELEASE STRUCTURE Z ALL D SITURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES tT FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. ALL TIMES DURING LAND DISTURBING AC770TES AND DURING SITE DEVELOPMENT UNM DD 00 TEMPORARY DIVERSION DIKE 3.09 TO DETAIL SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS IN "WET" AND `DRY" STORAGE FINAL STABILIZATION IS ACHIEVED. LONG ENOUGH FOR THE MAJORITY OF' THE SEDIMENT TO SETTLE OUT. APPLIES BELOW 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED SBS SEDIMENT BASIN J. 14 DISTURBED AREAS WHERE THE TOTAL CONTRIBUTING DRAINAGE AREA 1S EQUAL TO OR GREATER THAN THREE ACRES THERE MUST BE SUFFICIENT SPACE AND APPROPRIATE 9. FILTERING DEVICE. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY ANN TOPOGRAPHY FOR THE CONSTRUCT70N OFA TEMPORARY IMPOUNDMENT AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR OTSTS TEMPORARY SEEDING 3.31 318 OUTLET PROTECTION: CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. PS PS PERMANENT STABILIZATION 3.32 STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPATING DEVICES PLACED AT THE OUTLETS OF PIPES OR PAINED CHANNEL SECTIONS. TO PREVENT SCOUR AT 10. 11. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL STORMWATER OUTLETS, TO PROTECT THL OUTLET STRUCTURE, AND TO MINIMIZE THE POTENTIAL SHALL BE INERT MATER/ALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND MU MULCHING 3.35 FOR DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED STORMWATER FLOWS APPLICABLE TO 771E OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL 12. OTHER DEBRIS. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PR /,-(Mu)--/ SECTIONS. ZONING ORDINANCE SEC77ON 5.1.28. TOP C -a -� TREE PROTECTION 3.38 TOP 3.19 RIPRAP. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED /N COMPLIANCE WITH :SECTION I3-301 OF THE CODE OF ALBEMARLE. A PERMANENT, EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WITH 14. BORROW, FILL OR WASTE AC77WTY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT DC DC DUST CONTROL 339 FILTER FABRIC OR GRANULAR UNDE.ROA;iNG'. TO PROTECT THE SOIL FROM THE EROSIVE SHALL BE LIM17ED TO 7HE HOURS OF 7.•00 AM TO 9.00 PM. FORCES OF CONCENTRATED RUNOFF, S�!,,_�)' 77-iE VELOCITY OF CONCENTRATED RUNOFF WHILE 15. BORROW, FILL OR WASTE AC77WTY SHALL BE CONDUCTED IN A SAFE MANNER THAT ENHANCING THE POTENTIAL FOR INFIL TT�i,� 7701+1, AND TO STABILIZE SLOPES WITH SEEPAGE MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, FILTRs XX DIVERSION PROBLEMS, AND/OR NON -COHESIVE SO1i.S USE WHEREVER SOIL AND WATER INTERFACE AND PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY THE SOIL CONDITIONS, WATER TURBULlEf.'CE AND VELOCII , EXPECTED VEGETATIVE COVER, ETC., PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE, * ROCK CHECK DAM 3.20 ARE SUCH THAT THE SOIL MAY ERODE I.INDTi? THE DESIGN FLOW CONDITIONS. 16. THE DEVELOPER SHALL RESERVE 77 -IE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACIL177ES WHERE APPLICABLE A.L 327 3.20 ROCK CHECK DAMS.' EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE Of ': TURBIDITY CURTAIN SMALL TEMPORARY STONE DAMS CONSTRUCTED ACROSS A SWALE OR DRAINAGE DITCH. TO ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. REDUCE THE VELOCITY OF CONCENTRATED STORMWATER FLOWS, THEREBY REDUCING EROSION 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING !: OF THE SWALE OR DITCH. THIS PRAC77CE ALSO TRAPS SEDIMENT GENERATED FROM ADJACENT TO BE AT 75 LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO = - - - - = LIMITS OF DISTURBANCE AREAS OR 7HE DITCH ITSELF, MAINLY B'- PONDING OF THE STORMWATER RUNOFF. THIS CONSIST A 50/50 MIX OF ANNUAL RYGRASS AND CEREAL WINTER RYE OR IN MARCH PRACTICE, UTILIZING A COMBINA77ON OF STONE SIZES, IS LIMITED TO USE IN SMALL OPEN AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF .,...-- • -.-..,.w.,,. SOILS BOUNDARY CHANNELS WHICH DRAIN 10 ACRES OR LESS. GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 8OLBS/1OOSF. IALTERNA77VES AE SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZA77ON SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AN STONE BAFFLE J.27 TURBIDITY CURTAIN: MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 9OLsS/1000SF, A FLOATING GEOTEXTILE MATERIAL WHICH MINIMIZES SEDIMENT TRANSPORT FROM A DISTURBED INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FER77LIZER SHALL BE APPLIED A' @__1 FAIRCLOTH SKIMMER AREA ADJACENT TO OR W17HIN A BODY OF WATER. TO PROVIDE SEDIMENTA77ON PR07EC77ON 1000LBS/ACRE AND CONSIST OF A 10-20 10 NUTRIENT MIX. PERMANENT SEEDING FOR A WATERCOURSE FROM UP-SLOPE LAND DISTURBANCE OR FROM DREDGING OR FILL/NG WITHIN THE WATERCOURSE. APPLICABLE TO NON-77DAL AND TIDAL WATERCOURSES WHERE SHALL BE APPLIED AT 180LBS ACRE AND CONSIST OF 959 KENTUCKY 31 OR TALL / DRAINAGE DIVIDE INTRUSION INTO THE WATERCOURSE BY CONSTRUCTION ACTIVITIES AND SUBSEQUENT SEDIMENT - BLUEGRASS STRAW MULCH /� FESCUE AND 0-5Y* PERENNIAL RYGRASS OR KENTUCKY 7R MOVEMENT IS UNAVOIDABLE. TO BE APPLIED AT 80LBS/100SF. ALTERNA77VES ARE SUBJECT TO APPROVAL BY THE ;....�..,-_ -_ _.---_....,._r.-_m..- .-_� _ _ f ,F,BNCYAT C AAI D A R,Af 0R'IA`G i ,�, ,t � `ll - , C Wit-' / � 4.11 't 1 14 1-� y I € i �"�* '�"" __ 1� E ( j!! 22 1, r �� 111 t1 ; '2 i n.i 1 A- ,.. ; i I 4 00 it I ...I I I / f' -_ SwAr, .", t ASM a i - `----Fu "' ",i-,, F TREE FENCING n� �_,. v, -- E� r j t- -l" i 1, ilf`.fit ! x<1 T t ,--,i, ., i, I 11 lul, b ,,. A COR11 £CT TC ilitK ARI�1ORING TRIANGULAR BOARD r -£NCE ._...-__ __- __...�._ EROSION CONTROL INSPECTOR. 3.31 TEMPORARY SEEDING. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH THE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DISTURBED AREAS BY SEEDING RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR£,( WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND IMMEDIA TEL Y. SILT TRAPS ARE TO BE CLEANED WHEN 509. OF THE WET STORAGE SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN GRADE FOR A PERIOD OF MORE THAN 30 DA YS. TO REDUCE DAMAGE FROM SEDIMENT AND NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYWS RUNOFF TO DOWNSTREAM OR OFF-SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS WHICH ARE COLLEC77NG SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND EXPOSED DURING CONSTRUCTION UNTIL PERMANENT VEGETATION OR OTHER EROSION CONTROL REPAIRED IMMEDIATELY. MEASURES CAN BE ESTABLISHED. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO) BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE INO LONGER 332 PERMANENT STABILIZATION: NEEDED, SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR. THE ESTABLISHMENT OF PERENNIAL VEGETA77VE COVER ON DISTURBED AREAS BY PLANTING 21. THE E&S INSPECTOR HAS THE AUTHORITY TO ADD OR DELETE E&S CONTROLS AS SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS TO NECESSARY IN THE FIELD AS SITE CONDITIONS CHANGE. IN ADDITION, NO SEDIMEN7 PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT lS ECONOMICAL ADAPTABLE T() BASIN OR TRAP CAN BE REMOVED WITHOUT WRITTEN AUTHORIZATION. SITE CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTN177ES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. 3.35 MULCHING. APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE. TO PREVENT EROSION BY PROTECTING 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 774E SEASON SHOULD BE MULCHED USING ORGANIC MULCH. MULCH MAY BE USED TOGETHER W17H PLANTINGS OF TREES, SHRUBS, OR CERTAIN GROUND COVERS WHICH DO NOT PROVIDE ADEQUATE SOIL STABILIZATION BY THEMSELVES, CAN BE USED IN CONJUNCTION WITH TEMPORARY SEEDING. 3.38 TREE PRESERVA77ON AND PROTECTION: PROTECTION OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION AC77VITY. TO ENSURE THE SURVIVAL OF DESIRABLE TREES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WA7ERSHED PROTECTION, LANDSCAPE BEAURF/CA77ON, 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 7REE-INHABI7ED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES 3.39 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND R A TIES TO PREVENT RFA AND A/ MOVEMENT OF DUST FROM CONSTRUCTION CTI VI E TSU CEA R 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. COMPACTED SOIL ik 3' MINIMUM 24* MIN. 6' MINIMUM FILTER FABRIC ENTRENCHED 6' PERMANENT STABILIZA TION PERMANENT SEEDING WILL BE APPLIED TO ALL DISTURBED AREAS AS PER THE PERMANENT STABILIZATION OF THIS EROSION & SEDIMENT CONTROL NARRATIVE. AFTER CONSTRUCTION IS COMPLETED, ALL DISTURBED AREAS OF THE SITE WILL BE LIMED, FERTILIZED, AND SEEDED AS PER CURRENT VDO' STANDARDS. THIS SHALL CONSIST OF THE FOLLOWING, TOPSOIL - 2" DEPTH, LIME - 2 TONS/ACRE, FERTILIZER - 600 LBS/ACRE OF 15-30-15 SEED - ERNST 5311 CONSER VA TION SEED MIX - ERNMX-114 (45 LBS/ACRE PENNLAWN CREEPING RED FESCUE, 37.5 LBS/ACRE ARGIE KENTUCKY BLUEGRASS, 37.5 LBS/ACRE PARK KENTUCKY BLUEGRAS; 15 LBS/ACRE ANNUAL RYEGRASS & 15 LBS./ACRE PLEASURE PERENNIA. AFTER THESE AREAS ARE STABILIZED, THEY WILL BE MOWED AND MAINTAINED ON A REGULAR BASIS MAINTENANCE IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL IE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL. SPECIFIC A TTEN TION WILL BE GIVEN TO THE FOLL D ING ITEMS. A. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. IN ADDITION, THE COMPARTMENTS OF THE SEDIMENT BASINS WILL BE CONTINUALLY CLEANED ON A ROUTINE BASIS. B. ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT WILL PREVENT PROPER DRAINAGE. IF THE 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. DESCRIPTION OF EROSION & SEDIMENT CONTROL MEASURES: EROSION AND SEDIMENT CONTROL MEASURES.• IT IS ANTICIPATED TO USE CONSTRUC77ON ENTRANCES, DIVERSION DIKES, FIL7REXX RUNOFF DIVERSIONS, 3 SEDIMENT BASINS, 2 SEDIMENT TRAPS, AND SILT AND SUPER SILT FENCES WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE AC77VI77ES. TEMPORARY STOCKPILE AREAS WILL BE MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED FROM AREAS TO BE GRADED 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 ACT7VITIES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE. SELEC77ON 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 774ESE AREAS SHALL BE SEEDED MITI FAST GERMINA77NG VEGETA77ON IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. CONSTRUC77ON ENTRANCE: A STABILIZED PAVED CONSTRUC77ON ENTRANCE WITH A WASH RACK LOCATED AT THE POINT 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. CONSTRUCTION ROAD STABILIZAT70N: THE TEMPORARY STABILIZAT70N OF ACCESS ROADS, SUBDIVISION ROADS, PARKING AREAS, AND OTHER ON-SITE VEHICLE TRANSPORTATION ROUTES WITH 21A STONE IMMEDIATELY AFTER GRADING. TO REDUCE THE EROSION OF TEMPORARY ROADBEDS BY CONS7RUC77ON TRAFFIC AND TO REDUCE THE EROSION AND SUBSEQUENT REGARDING OF PERMANENT ROADBEDS BETWEEN THE 77ME OF INITIAL GRADING AND FINAL STABILIZATION. CONSTRUC77ON ROAD STABILIZA71ON WILL BE APPLIED TO THE PARKING AND STAGING AREA (4" DEPTH) AND AT THE ENTRANCE OF THE PROJECT (8- D EP TH). 8"DEPTH). SILT FENCE. A TEMPORARY SEDIMENT BARRIER CONSISTING 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 OPERATIONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE. 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 WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). 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 IS ECONOMICAL, ADAPTABLE TO S/7E CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIA7E PLANT MATERIALS TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONS7RUC77ON ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETA77VE COVER. TEMPORARY SEEDING: THE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DIS77JRBED 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 PROTECTION TO BARE SOILS EXPOSED DURING CONSTRUCTION UNTIL PERMANENT VEGETA77ON OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 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 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 W177-1 7HE VESCH. TEMPORARY DIVERSION DIKE: A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA WHICH DIVERTS OFF-SITE RUNOFF AWAY FROM UNPROTECTED SLOPES AND TO A STABILIZED OUTLET, OR TO DIVERT SEDIMENT -LADEN RUNOFF TO A SEDIMENT TRAPPING STRUCTURE. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS TEMPORARY SEDIMENT TRAP. A SMALL PONDING AREA, FORMED BY CONSTRUC77NG AN EARTHEN EMBANKMENT WITH A STONE OUTLET ACROSS A DRAINAGE SWALE, TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS FOR ENOUGH 77ME TO ALLOW MOST TO THE SUSPENDED SOLIDS TO SET7LE OUT. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. TEMPORARY SEDIMENT BASIN: A TEMPORARY BARRIER OR DAM WITH CON7ROLLED STORMWATER RELEASE STRUCTURES WHICH IS FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. IT IS USED TO DETAIN SEDIMENT -LADEN RUNOFF FROM DRAINAGE AREAS 3 ACRES OR GREATER FOR ENOUGH 77ME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT. 1T CAN BE CONSTRUCTED ONLY WHERE THERE IS SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY MAXIMUM EFFECTIVE E LIFE IS 18 MONTHS UNLESS DESIGNED AS A PERMANENT POND BY A QUALIFIED PROFESSIONAL. OUTLET PROTECTION. THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/OR S77LLING BASINS BELOW STORM DRAIN OUTLETS TO REDUCE EROSION AND UNDER- CUTING FROM SCOURING AT OU7LETS AND TO REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS RECEIVING CHANNELS BELOW THESE OUTLETS SAFETY FENCE.• A PR07EC77VE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL MEASURE. TURBIDITY CURTAIN. A BARRIER DESIGNED TO RESTRICT THE FLOW OF SEDIMENT -LADEN STORMWATER RUNOFF FROM A CONSTRUC77ON SITE, TO KEEP IT CONTAINED IN A LIMITED AREA, AND ALLOW SEDIMENT TO SETTLE. CHECK DAM: A DAM ALONG A DITCH WHICH REDUCES VELOCITY AND THUS PREVENTS EROSION AND ALLOWS SEDIMENT -LADEN RUNOFF TO SETTLE. TEMPORARY SEEDING.• ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIA TEL Y FOLLOWING GRADING. SELECTION OF THE SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR AND WILL BE APPLIED TO DISTURBED ARES THA T WILL NOT BE BROUGHT TO FINAL GRADE WITHIN 30 DAYS. PLANTS SHOULD BE SELECTED APPROPRIATE TO THE SEASON AND SITE CONDITIONS FROM TABLES 3 31 B AND 3.31C. NOTE THAT TABLE 3.31 B PRESENTS PLANTS WHICH CAN BE USED WITHOUT EXTENSIVE EVALUATION OF SITE CONDITIONS, TABLE 3.31 C PRESENTS MORE IN-DEPTH INFORMATION ON THE PLANT MATERIALS. TO CONTROL EROSION ON BARE SOIL SURFACES, PLANTS MUST BE ABLE TO GERMINATE AND GROW. SEEDBED PREPARATION IS ESSENTIAL. AN EVALUATION SHOULD BE CONDUCTED TO DETERMINE IF LIME IS NECESSARY FOR TEMPORA R Y SEEDING. TABLE 3.31 A MA Y BE USED TO DETERMINE THE ACTUAL NEED ALONG WITH SUGGESTED APPLICATION RATES. FERTILIZER SHALL BE APPLIED AS 600 LBS/ACRE OF 10-20-10 (14 LBS/1, 000 SQ. FT.) OR EQUIVALENT NUTRIENTS. LIME AND FERTILIZER 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 COMPACTION 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� INCHES DEEP. SMALL SEEDS, SUCH AS KENTUCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN j INCH DEEP. OTHER GRASSES AND LEGUMES SHOULD BE PLANTED FROM 4 INCH TO DEEP. SEEDINGS MADE IN FALL FOR WINTER COVER AND DURING HOT AND DRY SUMMER MONTHS SHALL BE MULCHED ACCORDING TO MULCHING, STD. & SPEC. J. J5, 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 ADEQUA7E TO PREVENT RILL EROSION WILL BE RE -SEEDED AS SOON AS SUCH AREAS ARE IDENTIFIED. EROSION CONTROL NOTES & NARRATIVE PURPOSE. THE PURPOSE OF THIS LAND DISTURBING ACTIVITY IS TO MASS GRADE THE ROAD NETWORK AND LOT PADS FOR CONSTRUCTION OF PHASES I & H OF THE ESTES PARK CONSTRUCTION PLAN. THE TOTAL AREA TO BE DISTURBED WITH THIS PHASE OF DEVELOPMENT IS 12.20 ACRES. EXISTING SITE COND177ONS: THE SITE CONTAINS AN EXISTING STREAM, RUNNING THROUGH THE CENTER OF THE PROPERTY. A SMALL PORTION OF DRAINAGE FROM WORTH CROSSING AND THE NEIGHBORING WESTERN PROPERTIES ENTERS THE SITE. A DROP INLET NORTH OF THE PROPOSED WORK ALONG THE BRIGHT BEGINNINGS DRIVE AISLE CAPTURES DRAINAGE FROM THE NORTH AND CONVEYS IT TO THE EXIS77NG STREAM. A NATURAL RIDGE EXISTS EAST OF THE PROPOSED WORK WHICH SPLITS THE SUBJECT PARCEL DRAINAGE, AND CHANNELS FLOW TO A SECOND DEPRESSED AREA TO THE EAST. THERE IS AN EXISTING STRUCTURE AND OUTBUILDING, DRIVEWAY, AND OVERHEAD ELECTRIC LINES ON THE PROPERTY. THE VEGETATION IS WOODED WITH CLEARED AREAS OF GRASS. 774E EXISTING STREAM AREA IS WOODED. ADJACENT AREAS: THIS SITE IS BORDERED BY PRIVATE RESIDENCES AND WORTH CROSSING TO THE WEST, THE BRIGHT BEGINNINGS DAY CARE AND MAPLE GROVE CHURCH TO THE NORTH, MOUBRY LANE AND PRIVATE RESIDENCES TO THE EAST, AND THE ARBOR LAKES AND FOREST LAKES COMMUNITIES TO THE SOUTH. OFFSITE LAND DISTURBANCE.• A TURBIDITY CURTAIN WILL BE INSTALLED AT THE INLET OF ESTES RUNOFF TO ARBOR LAKE AS PROFFERED. THE CONSTRUC77ON ACCESS ROAD WILL ACCESS ON PROFFIT ROAD. NO OTHER LAND DISTURBANCE SHALL OCCUR OUTSIDE THE LIMITS OF DISTURBANCE AS SHOWN. CRITICAL AREAS.• THE ,EXISTING STREAM AND DOWNSTREAM LAKE ARE CRITICAL AREAS FOR PROTECTION DURING THE CONSTRUCTION PROCESS. REDUNDANT MEASURES OF PROTECTION WILL BE APPLIED ALONG THE STREAM INCLUDING DIVERSION BERMS, SUPER SILT FENCE, FlL TREXX DIVERSIONS, AND TREE PRO TEC TION FENCING. THE TURBIDITY CURTAIN WILL BE INSTALLED AT THE ARBOR LAKE INLET TO ENSURE PROTECTION OF THIS WA TERBOD Y. SOILS. SOILS MAP IS INCORPORATED INTO THE EROSION CONTROL PLANS WITH SOILS DATA INCLUDED WITH THIS NA RRA TI VE SEQUENCE OF CONSTRU TION: 1. PHASE l: NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED. 2. PHASE l: NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT. J. PHASE /. INSTALL A VDOT STANDARD TRAFFIC BARRIER AT THE END OF THE BRIGHT BEGINNINGS DRIVE AISLE AS SHOWN ON THE PLANS. 4. PHASE l.- INSTALL THE CONS7RUCTION ENTRANCE OFF OF PROFFI T ROAD AS SHOWN ON THE PLANS WITHIN THE EXISTING ACCESS EASEMENT D.B. 2303, PG. 632. CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUC77ON 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. INSTALL THE WASH RACK UPHILL FROM PROPOSED SEDIMENT TRAP #1. INSTALL THE PARKING AND STAGING AREA WITH CONSTRUC77ON ROAD STABILIZATION. CONSTRUCT70N ROAD STABILIZATION SHALL CONSIST OF 4" OF VDOT STONE #23 GRAVEL IN THE PARKING AREA, AND 8" OF VDOT STONE #23 GRAVEL IN ANY PORTION OF THE CONSTRUCTION ENTRANCE WHICH IS UNPAVED. PARKING AND CONSTRUCTION ENTRANCE AREAS SHALL BE CLEARED OF ALL VEGETATION, ROOTS, OR OTHER OBJECTIONABLE MATERIALS BEFORE CONSTRUC77ON ROAD STABILIZA 77ON IS INSTALLED. 5. PHASE I: INSTALL THE TURBIDITY CURTAIN /N ARBOR LAKE THE CURTAIN SHALL BE INSTALLED PRIOR TO ANY UPSLOPE DISTURBANCE ASSOCIA7ED WITH THE PROPOSED DEVELOPMENT. IT WILL BE MONITORED ON A WEEKLY BASIS 6. PHASE I. INSTALL THE hVI RAL CONSTRUCTION MEASURES AS SHOWN ON THE EROSION CONTROL SHEET. THIS INCLUDES THE SUPER SILT FENCE ALONG ENVIRONMENTALLY SENSI TVE AREAS, SILT FENCE, DIVERSION BERM WITH CHECK DAMS, FIL TREXX FIL TER SOXX RUNOFF DI VERSION, TREE PROTECTION FEVCING, SEDIMENT TRAP, AND 2 SEDIMENT BASINS. THE SLOPES ASSOCIATED WITH THE SEDIMENT BASINS SHALL BE STABILIZED WITH EROSION AND SEDIMENT CONTROL MATTING IMMEDIATELY. STONE BAFFLES SHALL BE U77LIZED IN THE SEDIMENT BASINS TO COMPARTMENTALIZE THE VOLUME AND ALLOW SEDIMENT TO FILTER OUT AS IT MOVES THROUGH THE COMPARTMENTS. THE CONTRACTOR SHALL MONITER & CLEAN OUT THE FIRST CHAMBER OF EACH SEDIMENT BASIN ON A WEEKLY BASIS, WITH THE OTHER CHAMBERS BEING CLEANED OUT AS NECESSARY TO REMOVE SEDIMENT THAT HAS ACCUMULATED WITHIN THE BASIN. FAIRCLOTH SKIMMERS F'',ALL BE EMPLOYED IN BOTH SEDIMENT BASINS. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNC77ONAL 7ZF0RE UPSLOPE LAND DISTURBANCE TAKES PLACE. 7. PHASE I. INSTALL ANYREMAINING EROSION CONTROL ITEMS AS SHOWN ON THE EROSION AND SEDIMENT CONTROL PLAN PHASE 1, 8. PHASE I. THE COUNTY E&S INSPECTOR MUST GIVE APPROVAL TO BEGIN PHASE 2 ONLY AFTER COMPLETING PHASE 1 :AND ALL EROSION CONTROL MEASURES ARE STABILIZED. 9. PHASE !l: ONCE ALL FHE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE EROSION CONTROL PLAN AND Th'E INSPECTOR HAS APPROVED THE EROSION CONTROL MEASURES, THE CONTRACTOR CAN BEGIN GRADING OPERATIONS STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES,, AND DIVERSIONS IMMEDIA TEL Y AFTER INSTALLATION. 10. PHASE U: ROUGH GRADE THE SITE TO THE CONTOURS SHOWN ON THE EROSION CONTROL PLAN. 11. PHASE Il: PERMANENT' (?R TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TACKIFIERS SHALL BE USED IN SEEDING AND SOIL STABILIZATION APPLICATIONS 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. 12. PHASE Ill: INSTALL THE PROPOSED STREAM CROSSING CULVERT, ENDWALLS, AND RIPRAP OUTFALL. CiULVERT INLET PROTECTION SHALL BE APPLIED TO THE UPSTREAM CULVERT OPENING. 13 PHASE Ill: INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE EROSION CONTROL SHEET THIS INCLUDES SEDIMENT BASIN 3, AND SEDIMENT TRAP 2, SUPER SILT FENCE ALONG THE CREEK AND ENVIRONMENTALLY SENSI TVE AREAS, SILT FENCE, DIVERSION BERM WITH CHECK DAMS, FIL TREXX FILTER S'OXX RUNOFF DIVERSION, AND TREE PROTECTION FENCING. THE SLOPES ASSOCIATED WITH THE SEDIMENT BASINS AND TRAPS SHALL BE STABILIZED WITH EROSION AND SEDIMENT CONTROL MATTING IMMEDIA TEL Y. STONE BAFFLES SHALL BE UTILIZED IN THE SEDIMENT BASINS TO COMPARTMENTALIZE THE VOLUME AND ALLOW SEDIMENT TO FILTER OUT AS IT MOVES THROUGH THE COMPARTMENTS THE CONTRACTOR SHALL CLEAN OUT THE FIRST CHAMBER OF EACH SEDIMENT BASIN ON A WEEKLY BASIS, WITH THE OTHER CHAMBERS BEING CLEANED OUT AS NECESSARY TO REMOVE SEDIMENT THAT HAS ACCUMULATED WITHIN THE BASIN. FAIRCLOTH SKIMMERS SHALL BE EMPLOYED /N BOTH SEDIMENT BASINS 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. 14. PHASE Ill: ROUGH GRADE THE EASTERN PORTION OF THE SITE TO THE CONTOURS SHOWN ON THE EIROSION AND SEDIMENT CONTROL PLAN. 15. PHASE 11/: PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SLFVEN DAYS AFTER FINAL GRADE 1S REACHED ON ANY PORTION OF THE SITE. TACKIFIERS SHALL BE USED IN SEEDING AND SOIL STABILIZATION APPLICATIONS. TEMPORARY SOIL STABLIZA77ON SHALL BE AIPPL1ED WI THIN SEVEN DA YS TO DENUDED AREAS THA T MA Y NOT BE A T FINAL GRADE, BUT WILL REMAIN D(ORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AfREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 16. PEASE 111: ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN REMOVE THE EROSION CONTROL MEASURES NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AIREAS ARE STABILIZED AND THE INSPECTOR GRANTS PERMISSION. 17. PHASE Ill: MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED 1N THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ATDM/NISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 18. PHASE 111: ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DA YS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UAVLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DPISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. ESCR SOIL DIPTION 278-ELIOAK LOAM, 29 TO 79 SLOPES. SOIL IS WELL DRAINED, WITH MORE THAN 80 IN. DEPTH TO THE WATER TABLE. MADE FROM RESIDUUM WEATHERED FROM MICA SCHIST, THIS SOIL HAS CONVEX DOWN AND ACROSS -SLOPE SHAPE. THIS SOIL HAS NO FREQUENCY OF PONDING OR FLOODING AND A MODERATELY HIGH TO HIGH KSAT W/TH MODERATE WATER CAPACITY. 28C3 - ELIOAK CLAY LOAM -79 TO 159 SLOPES. SOIL IS WELL DRAINED, WITH MORE T1 -/ AN 80 INCHES TO THE WATER TABLE. MADE FROM RESIDUUM WEATHERED FROM MICA SCHIST, THIS SOIL HAS CONVEX DOWN AND ACROSS -SLOPE SHAPE. NO FREQUENCY OF PONDING OR FLOODING, LOW WA TER CAPACI TY, AND MODERA TEL Y HIGH TO HIGH KSA T. 34C - GLENELG LOAM, 7 TO 15 PERCENT SLOPES, SOIL IS WELL DRAINED, MODERA TEL Y HIGH TO HIGH KSA T MORE THAN 80 INCHES TO THE WA TER TABLE, NO FREQUENCY OF PONDING OR FLOODING, HIGH WATER CAPACITY. 88 - UDORTHENTS, LOAMY -2q TO 259 SLOPES SOIL FROM RESIDUUM WEATHERED FROM GRANITE AND GNEISS, WITH MORE THAN 80 INCHES TO THE WATER TABLE, NO FLOODING OR PONDING, AND CONVEX DOWN AND ACROSS -.SLOPE SHAPE. I, _� --I H WN � _11 ' T" `a 14 SCOTT R. COLLINS�, ? No. 35791 ,�- O ��SSjONAL �'��1 TABLE 3.31-B J ACCEPTABLE T1M7?C)RAIt.Y SEF;ilING Q'LAItcT 14I ATERIALS -QUICK REFER ;NCE FOR ALL REGIONS - a) I- I- I- z Rate ( ntrfl4 Dates Smd-el lbs. acre Sept. I - Feb. 15 50150 Mix of o z to --iU Annual Ryegrass 0 o H (Lolium inuiti-florum) - Q cit 50- 100 LU Cereal (Winter) Rye (&cafe ser-aie) cc Feb_ 16 - Apr. 30 Annual Ryegrass 60- I00 N (LOIjum rnuiti-florum) May I - Aug 31 German Millet o (Setaria italica) Source: Va. DSWC LU ;....�..,-_ -_ _.---_....,._r.-_m..- .-_� _ _ f ,F,BNCYAT C AAI D A R,Af 0R'IA`G i ,�, ,t � `ll - , C Wit-' / � 4.11 't 1 14 1-� y I € i �"�* '�"" __ 1� E ( j!! 22 1, r �� 111 t1 ; '2 i n.i 1 A- ,.. ; i I 4 00 it I ...I I I / f' -_ SwAr, .", t ASM a i - `----Fu "' ",i-,, F TREE FENCING n� �_,. v, -- E� r j t- -l" i 1, ilf`.fit ! x<1 T t ,--,i, ., i, I 11 lul, b ,,. A COR11 £CT TC ilitK ARI�1ORING TRIANGULAR BOARD r -£NCE ._...-__ __- __...�._ EROSION CONTROL INSPECTOR. 3.31 TEMPORARY SEEDING. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH THE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DISTURBED AREAS BY SEEDING RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR£,( WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND IMMEDIA TEL Y. SILT TRAPS ARE TO BE CLEANED WHEN 509. OF THE WET STORAGE SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE BROUGHT TO FINAL VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN GRADE FOR A PERIOD OF MORE THAN 30 DA YS. TO REDUCE DAMAGE FROM SEDIMENT AND NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYWS RUNOFF TO DOWNSTREAM OR OFF-SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS WHICH ARE COLLEC77NG SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND EXPOSED DURING CONSTRUCTION UNTIL PERMANENT VEGETATION OR OTHER EROSION CONTROL REPAIRED IMMEDIATELY. MEASURES CAN BE ESTABLISHED. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO) BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE INO LONGER 332 PERMANENT STABILIZATION: NEEDED, SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR. THE ESTABLISHMENT OF PERENNIAL VEGETA77VE COVER ON DISTURBED AREAS BY PLANTING 21. THE E&S INSPECTOR HAS THE AUTHORITY TO ADD OR DELETE E&S CONTROLS AS SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS TO NECESSARY IN THE FIELD AS SITE CONDITIONS CHANGE. IN ADDITION, NO SEDIMEN7 PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT lS ECONOMICAL ADAPTABLE T() BASIN OR TRAP CAN BE REMOVED WITHOUT WRITTEN AUTHORIZATION. SITE CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTN177ES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER. 3.35 MULCHING. APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE. TO PREVENT EROSION BY PROTECTING 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 774E SEASON SHOULD BE MULCHED USING ORGANIC MULCH. MULCH MAY BE USED TOGETHER W17H PLANTINGS OF TREES, SHRUBS, OR CERTAIN GROUND COVERS WHICH DO NOT PROVIDE ADEQUATE SOIL STABILIZATION BY THEMSELVES, CAN BE USED IN CONJUNCTION WITH TEMPORARY SEEDING. 3.38 TREE PRESERVA77ON AND PROTECTION: PROTECTION OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION AC77VITY. TO ENSURE THE SURVIVAL OF DESIRABLE TREES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WA7ERSHED PROTECTION, LANDSCAPE BEAURF/CA77ON, 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 7REE-INHABI7ED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES 3.39 DUST CONTROL: REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND R A TIES TO PREVENT RFA AND A/ MOVEMENT OF DUST FROM CONSTRUCTION CTI VI E TSU CEA R 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. COMPACTED SOIL ik 3' MINIMUM 24* MIN. 6' MINIMUM FILTER FABRIC ENTRENCHED 6' PERMANENT STABILIZA TION PERMANENT SEEDING WILL BE APPLIED TO ALL DISTURBED AREAS AS PER THE PERMANENT STABILIZATION OF THIS EROSION & SEDIMENT CONTROL NARRATIVE. AFTER CONSTRUCTION IS COMPLETED, ALL DISTURBED AREAS OF THE SITE WILL BE LIMED, FERTILIZED, AND SEEDED AS PER CURRENT VDO' STANDARDS. THIS SHALL CONSIST OF THE FOLLOWING, TOPSOIL - 2" DEPTH, LIME - 2 TONS/ACRE, FERTILIZER - 600 LBS/ACRE OF 15-30-15 SEED - ERNST 5311 CONSER VA TION SEED MIX - ERNMX-114 (45 LBS/ACRE PENNLAWN CREEPING RED FESCUE, 37.5 LBS/ACRE ARGIE KENTUCKY BLUEGRASS, 37.5 LBS/ACRE PARK KENTUCKY BLUEGRAS; 15 LBS/ACRE ANNUAL RYEGRASS & 15 LBS./ACRE PLEASURE PERENNIA. AFTER THESE AREAS ARE STABILIZED, THEY WILL BE MOWED AND MAINTAINED ON A REGULAR BASIS MAINTENANCE IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL IE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL. SPECIFIC A TTEN TION WILL BE GIVEN TO THE FOLL D ING ITEMS. A. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. IN ADDITION, THE COMPARTMENTS OF THE SEDIMENT BASINS WILL BE CONTINUALLY CLEANED ON A ROUTINE BASIS. B. ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT WILL PREVENT PROPER DRAINAGE. IF THE 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. DESCRIPTION OF EROSION & SEDIMENT CONTROL MEASURES: EROSION AND SEDIMENT CONTROL MEASURES.• IT IS ANTICIPATED TO USE CONSTRUC77ON ENTRANCES, DIVERSION DIKES, FIL7REXX RUNOFF DIVERSIONS, 3 SEDIMENT BASINS, 2 SEDIMENT TRAPS, AND SILT AND SUPER SILT FENCES WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL BE USED IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE AC77VI77ES. TEMPORARY STOCKPILE AREAS WILL BE MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED FROM AREAS TO BE GRADED 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 ACT7VITIES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE. SELEC77ON 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 774ESE AREAS SHALL BE SEEDED MITI FAST GERMINA77NG VEGETA77ON IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. CONSTRUC77ON ENTRANCE: A STABILIZED PAVED CONSTRUC77ON ENTRANCE WITH A WASH RACK LOCATED AT THE POINT 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. CONSTRUCTION ROAD STABILIZAT70N: THE TEMPORARY STABILIZAT70N OF ACCESS ROADS, SUBDIVISION ROADS, PARKING AREAS, AND OTHER ON-SITE VEHICLE TRANSPORTATION ROUTES WITH 21A STONE IMMEDIATELY AFTER GRADING. TO REDUCE THE EROSION OF TEMPORARY ROADBEDS BY CONS7RUC77ON TRAFFIC AND TO REDUCE THE EROSION AND SUBSEQUENT REGARDING OF PERMANENT ROADBEDS BETWEEN THE 77ME OF INITIAL GRADING AND FINAL STABILIZATION. CONSTRUC77ON ROAD STABILIZA71ON WILL BE APPLIED TO THE PARKING AND STAGING AREA (4" DEPTH) AND AT THE ENTRANCE OF THE PROJECT (8- D EP TH). 8"DEPTH). SILT FENCE. A TEMPORARY SEDIMENT BARRIER CONSISTING 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 OPERATIONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE. 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 WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). 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 IS ECONOMICAL, ADAPTABLE TO S/7E CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIA7E PLANT MATERIALS TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONS7RUC77ON ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETA77VE COVER. TEMPORARY SEEDING: THE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DIS77JRBED 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 PROTECTION TO BARE SOILS EXPOSED DURING CONSTRUCTION UNTIL PERMANENT VEGETA77ON OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. 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 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 W177-1 7HE VESCH. TEMPORARY DIVERSION DIKE: A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA WHICH DIVERTS OFF-SITE RUNOFF AWAY FROM UNPROTECTED SLOPES AND TO A STABILIZED OUTLET, OR TO DIVERT SEDIMENT -LADEN RUNOFF TO A SEDIMENT TRAPPING STRUCTURE. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS TEMPORARY SEDIMENT TRAP. A SMALL PONDING AREA, FORMED BY CONSTRUC77NG AN EARTHEN EMBANKMENT WITH A STONE OUTLET ACROSS A DRAINAGE SWALE, TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED AREAS FOR ENOUGH 77ME TO ALLOW MOST TO THE SUSPENDED SOLIDS TO SET7LE OUT. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. TEMPORARY SEDIMENT BASIN: A TEMPORARY BARRIER OR DAM WITH CON7ROLLED STORMWATER RELEASE STRUCTURES WHICH IS FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. IT IS USED TO DETAIN SEDIMENT -LADEN RUNOFF FROM DRAINAGE AREAS 3 ACRES OR GREATER FOR ENOUGH 77ME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT. 1T CAN BE CONSTRUCTED ONLY WHERE THERE IS SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY MAXIMUM EFFECTIVE E LIFE IS 18 MONTHS UNLESS DESIGNED AS A PERMANENT POND BY A QUALIFIED PROFESSIONAL. OUTLET PROTECTION. THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/OR S77LLING BASINS BELOW STORM DRAIN OUTLETS TO REDUCE EROSION AND UNDER- CUTING FROM SCOURING AT OU7LETS AND TO REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS RECEIVING CHANNELS BELOW THESE OUTLETS SAFETY FENCE.• A PR07EC77VE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL MEASURE. TURBIDITY CURTAIN. A BARRIER DESIGNED TO RESTRICT THE FLOW OF SEDIMENT -LADEN STORMWATER RUNOFF FROM A CONSTRUC77ON SITE, TO KEEP IT CONTAINED IN A LIMITED AREA, AND ALLOW SEDIMENT TO SETTLE. CHECK DAM: A DAM ALONG A DITCH WHICH REDUCES VELOCITY AND THUS PREVENTS EROSION AND ALLOWS SEDIMENT -LADEN RUNOFF TO SETTLE. TEMPORARY SEEDING.• ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIA TEL Y FOLLOWING GRADING. SELECTION OF THE SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR AND WILL BE APPLIED TO DISTURBED ARES THA T WILL NOT BE BROUGHT TO FINAL GRADE WITHIN 30 DAYS. PLANTS SHOULD BE SELECTED APPROPRIATE TO THE SEASON AND SITE CONDITIONS FROM TABLES 3 31 B AND 3.31C. NOTE THAT TABLE 3.31 B PRESENTS PLANTS WHICH CAN BE USED WITHOUT EXTENSIVE EVALUATION OF SITE CONDITIONS, TABLE 3.31 C PRESENTS MORE IN-DEPTH INFORMATION ON THE PLANT MATERIALS. TO CONTROL EROSION ON BARE SOIL SURFACES, PLANTS MUST BE ABLE TO GERMINATE AND GROW. SEEDBED PREPARATION IS ESSENTIAL. AN EVALUATION SHOULD BE CONDUCTED TO DETERMINE IF LIME IS NECESSARY FOR TEMPORA R Y SEEDING. TABLE 3.31 A MA Y BE USED TO DETERMINE THE ACTUAL NEED ALONG WITH SUGGESTED APPLICATION RATES. FERTILIZER SHALL BE APPLIED AS 600 LBS/ACRE OF 10-20-10 (14 LBS/1, 000 SQ. FT.) OR EQUIVALENT NUTRIENTS. LIME AND FERTILIZER 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 COMPACTION 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� INCHES DEEP. SMALL SEEDS, SUCH AS KENTUCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN j INCH DEEP. OTHER GRASSES AND LEGUMES SHOULD BE PLANTED FROM 4 INCH TO DEEP. SEEDINGS MADE IN FALL FOR WINTER COVER AND DURING HOT AND DRY SUMMER MONTHS SHALL BE MULCHED ACCORDING TO MULCHING, STD. & SPEC. J. J5, 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 ADEQUA7E TO PREVENT RILL EROSION WILL BE RE -SEEDED AS SOON AS SUCH AREAS ARE IDENTIFIED. EROSION CONTROL NOTES & NARRATIVE PURPOSE. THE PURPOSE OF THIS LAND DISTURBING ACTIVITY IS TO MASS GRADE THE ROAD NETWORK AND LOT PADS FOR CONSTRUCTION OF PHASES I & H OF THE ESTES PARK CONSTRUCTION PLAN. THE TOTAL AREA TO BE DISTURBED WITH THIS PHASE OF DEVELOPMENT IS 12.20 ACRES. EXISTING SITE COND177ONS: THE SITE CONTAINS AN EXISTING STREAM, RUNNING THROUGH THE CENTER OF THE PROPERTY. A SMALL PORTION OF DRAINAGE FROM WORTH CROSSING AND THE NEIGHBORING WESTERN PROPERTIES ENTERS THE SITE. A DROP INLET NORTH OF THE PROPOSED WORK ALONG THE BRIGHT BEGINNINGS DRIVE AISLE CAPTURES DRAINAGE FROM THE NORTH AND CONVEYS IT TO THE EXIS77NG STREAM. A NATURAL RIDGE EXISTS EAST OF THE PROPOSED WORK WHICH SPLITS THE SUBJECT PARCEL DRAINAGE, AND CHANNELS FLOW TO A SECOND DEPRESSED AREA TO THE EAST. THERE IS AN EXISTING STRUCTURE AND OUTBUILDING, DRIVEWAY, AND OVERHEAD ELECTRIC LINES ON THE PROPERTY. THE VEGETATION IS WOODED WITH CLEARED AREAS OF GRASS. 774E EXISTING STREAM AREA IS WOODED. ADJACENT AREAS: THIS SITE IS BORDERED BY PRIVATE RESIDENCES AND WORTH CROSSING TO THE WEST, THE BRIGHT BEGINNINGS DAY CARE AND MAPLE GROVE CHURCH TO THE NORTH, MOUBRY LANE AND PRIVATE RESIDENCES TO THE EAST, AND THE ARBOR LAKES AND FOREST LAKES COMMUNITIES TO THE SOUTH. OFFSITE LAND DISTURBANCE.• A TURBIDITY CURTAIN WILL BE INSTALLED AT THE INLET OF ESTES RUNOFF TO ARBOR LAKE AS PROFFERED. THE CONSTRUC77ON ACCESS ROAD WILL ACCESS ON PROFFIT ROAD. NO OTHER LAND DISTURBANCE SHALL OCCUR OUTSIDE THE LIMITS OF DISTURBANCE AS SHOWN. CRITICAL AREAS.• THE ,EXISTING STREAM AND DOWNSTREAM LAKE ARE CRITICAL AREAS FOR PROTECTION DURING THE CONSTRUCTION PROCESS. REDUNDANT MEASURES OF PROTECTION WILL BE APPLIED ALONG THE STREAM INCLUDING DIVERSION BERMS, SUPER SILT FENCE, FlL TREXX DIVERSIONS, AND TREE PRO TEC TION FENCING. THE TURBIDITY CURTAIN WILL BE INSTALLED AT THE ARBOR LAKE INLET TO ENSURE PROTECTION OF THIS WA TERBOD Y. SOILS. SOILS MAP IS INCORPORATED INTO THE EROSION CONTROL PLANS WITH SOILS DATA INCLUDED WITH THIS NA RRA TI VE SEQUENCE OF CONSTRU TION: 1. PHASE l: NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED. 2. PHASE l: NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT. J. PHASE /. INSTALL A VDOT STANDARD TRAFFIC BARRIER AT THE END OF THE BRIGHT BEGINNINGS DRIVE AISLE AS SHOWN ON THE PLANS. 4. PHASE l.- INSTALL THE CONS7RUCTION ENTRANCE OFF OF PROFFI T ROAD AS SHOWN ON THE PLANS WITHIN THE EXISTING ACCESS EASEMENT D.B. 2303, PG. 632. CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUC77ON 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. INSTALL THE WASH RACK UPHILL FROM PROPOSED SEDIMENT TRAP #1. INSTALL THE PARKING AND STAGING AREA WITH CONSTRUC77ON ROAD STABILIZATION. CONSTRUCT70N ROAD STABILIZATION SHALL CONSIST OF 4" OF VDOT STONE #23 GRAVEL IN THE PARKING AREA, AND 8" OF VDOT STONE #23 GRAVEL IN ANY PORTION OF THE CONSTRUCTION ENTRANCE WHICH IS UNPAVED. PARKING AND CONSTRUCTION ENTRANCE AREAS SHALL BE CLEARED OF ALL VEGETATION, ROOTS, OR OTHER OBJECTIONABLE MATERIALS BEFORE CONSTRUC77ON ROAD STABILIZA 77ON IS INSTALLED. 5. PHASE I: INSTALL THE TURBIDITY CURTAIN /N ARBOR LAKE THE CURTAIN SHALL BE INSTALLED PRIOR TO ANY UPSLOPE DISTURBANCE ASSOCIA7ED WITH THE PROPOSED DEVELOPMENT. IT WILL BE MONITORED ON A WEEKLY BASIS 6. PHASE I. INSTALL THE hVI RAL CONSTRUCTION MEASURES AS SHOWN ON THE EROSION CONTROL SHEET. THIS INCLUDES THE SUPER SILT FENCE ALONG ENVIRONMENTALLY SENSI TVE AREAS, SILT FENCE, DIVERSION BERM WITH CHECK DAMS, FIL TREXX FIL TER SOXX RUNOFF DI VERSION, TREE PROTECTION FEVCING, SEDIMENT TRAP, AND 2 SEDIMENT BASINS. THE SLOPES ASSOCIATED WITH THE SEDIMENT BASINS SHALL BE STABILIZED WITH EROSION AND SEDIMENT CONTROL MATTING IMMEDIATELY. STONE BAFFLES SHALL BE U77LIZED IN THE SEDIMENT BASINS TO COMPARTMENTALIZE THE VOLUME AND ALLOW SEDIMENT TO FILTER OUT AS IT MOVES THROUGH THE COMPARTMENTS. THE CONTRACTOR SHALL MONITER & CLEAN OUT THE FIRST CHAMBER OF EACH SEDIMENT BASIN ON A WEEKLY BASIS, WITH THE OTHER CHAMBERS BEING CLEANED OUT AS NECESSARY TO REMOVE SEDIMENT THAT HAS ACCUMULATED WITHIN THE BASIN. FAIRCLOTH SKIMMERS F'',ALL BE EMPLOYED IN BOTH SEDIMENT BASINS. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNC77ONAL 7ZF0RE UPSLOPE LAND DISTURBANCE TAKES PLACE. 7. PHASE I. INSTALL ANYREMAINING EROSION CONTROL ITEMS AS SHOWN ON THE EROSION AND SEDIMENT CONTROL PLAN PHASE 1, 8. PHASE I. THE COUNTY E&S INSPECTOR MUST GIVE APPROVAL TO BEGIN PHASE 2 ONLY AFTER COMPLETING PHASE 1 :AND ALL EROSION CONTROL MEASURES ARE STABILIZED. 9. PHASE !l: ONCE ALL FHE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE EROSION CONTROL PLAN AND Th'E INSPECTOR HAS APPROVED THE EROSION CONTROL MEASURES, THE CONTRACTOR CAN BEGIN GRADING OPERATIONS STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES,, AND DIVERSIONS IMMEDIA TEL Y AFTER INSTALLATION. 10. PHASE U: ROUGH GRADE THE SITE TO THE CONTOURS SHOWN ON THE EROSION CONTROL PLAN. 11. PHASE Il: PERMANENT' (?R TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TACKIFIERS SHALL BE USED IN SEEDING AND SOIL STABILIZATION APPLICATIONS 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. 12. PHASE Ill: INSTALL THE PROPOSED STREAM CROSSING CULVERT, ENDWALLS, AND RIPRAP OUTFALL. CiULVERT INLET PROTECTION SHALL BE APPLIED TO THE UPSTREAM CULVERT OPENING. 13 PHASE Ill: INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE EROSION CONTROL SHEET THIS INCLUDES SEDIMENT BASIN 3, AND SEDIMENT TRAP 2, SUPER SILT FENCE ALONG THE CREEK AND ENVIRONMENTALLY SENSI TVE AREAS, SILT FENCE, DIVERSION BERM WITH CHECK DAMS, FIL TREXX FILTER S'OXX RUNOFF DIVERSION, AND TREE PROTECTION FENCING. THE SLOPES ASSOCIATED WITH THE SEDIMENT BASINS AND TRAPS SHALL BE STABILIZED WITH EROSION AND SEDIMENT CONTROL MATTING IMMEDIA TEL Y. STONE BAFFLES SHALL BE UTILIZED IN THE SEDIMENT BASINS TO COMPARTMENTALIZE THE VOLUME AND ALLOW SEDIMENT TO FILTER OUT AS IT MOVES THROUGH THE COMPARTMENTS THE CONTRACTOR SHALL CLEAN OUT THE FIRST CHAMBER OF EACH SEDIMENT BASIN ON A WEEKLY BASIS, WITH THE OTHER CHAMBERS BEING CLEANED OUT AS NECESSARY TO REMOVE SEDIMENT THAT HAS ACCUMULATED WITHIN THE BASIN. FAIRCLOTH SKIMMERS SHALL BE EMPLOYED /N BOTH SEDIMENT BASINS 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. 14. PHASE Ill: ROUGH GRADE THE EASTERN PORTION OF THE SITE TO THE CONTOURS SHOWN ON THE EIROSION AND SEDIMENT CONTROL PLAN. 15. PHASE 11/: PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SLFVEN DAYS AFTER FINAL GRADE 1S REACHED ON ANY PORTION OF THE SITE. TACKIFIERS SHALL BE USED IN SEEDING AND SOIL STABILIZATION APPLICATIONS. TEMPORARY SOIL STABLIZA77ON SHALL BE AIPPL1ED WI THIN SEVEN DA YS TO DENUDED AREAS THA T MA Y NOT BE A T FINAL GRADE, BUT WILL REMAIN D(ORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AfREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR. 16. PEASE 111: ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, THE CONTRACTOR CAN REMOVE THE EROSION CONTROL MEASURES NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AIREAS ARE STABILIZED AND THE INSPECTOR GRANTS PERMISSION. 17. PHASE Ill: MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED 1N THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ATDM/NISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. 18. PHASE 111: ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DA YS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UAVLESS OTHERWISE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DPISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. ESCR SOIL DIPTION 278-ELIOAK LOAM, 29 TO 79 SLOPES. SOIL IS WELL DRAINED, WITH MORE THAN 80 IN. DEPTH TO THE WATER TABLE. MADE FROM RESIDUUM WEATHERED FROM MICA SCHIST, THIS SOIL HAS CONVEX DOWN AND ACROSS -SLOPE SHAPE. THIS SOIL HAS NO FREQUENCY OF PONDING OR FLOODING AND A MODERATELY HIGH TO HIGH KSAT W/TH MODERATE WATER CAPACITY. 28C3 - ELIOAK CLAY LOAM -79 TO 159 SLOPES. SOIL IS WELL DRAINED, WITH MORE T1 -/ AN 80 INCHES TO THE WATER TABLE. MADE FROM RESIDUUM WEATHERED FROM MICA SCHIST, THIS SOIL HAS CONVEX DOWN AND ACROSS -SLOPE SHAPE. NO FREQUENCY OF PONDING OR FLOODING, LOW WA TER CAPACI TY, AND MODERA TEL Y HIGH TO HIGH KSA T. 34C - GLENELG LOAM, 7 TO 15 PERCENT SLOPES, SOIL IS WELL DRAINED, MODERA TEL Y HIGH TO HIGH KSA T MORE THAN 80 INCHES TO THE WA TER TABLE, NO FREQUENCY OF PONDING OR FLOODING, HIGH WATER CAPACITY. 88 - UDORTHENTS, LOAMY -2q TO 259 SLOPES SOIL FROM RESIDUUM WEATHERED FROM GRANITE AND GNEISS, WITH MORE THAN 80 INCHES TO THE WATER TABLE, NO FLOODING OR PONDING, AND CONVEX DOWN AND ACROSS -.SLOPE SHAPE. I, _� --I H WN � _11 ' T" `a 14 SCOTT R. COLLINS�, ? No. 35791 ,�- O ��SSjONAL �'��1 `_', M M ,i -1.i 'i 00 � r.a o rN rq r~v " •-+ ® o Iflo ,j z (D 06 w mw z LL) U z � w oz z UJ c -j z -0 v LLo 0 Q0) 0 U) I QC o J U 0 L C o °' (tip/j a o .E 3 , c� 0 0 X 0- o x U�Q) o Q ,-, Z Q)D L O W°' -0 :L- 2: o U) I_q C: .0 M C aQ � Eco 1./)a 0 C o U U z" z -` �j F N W 0 L.w o Z U 6 t --t w 0 Oz J � o-0 LU v :0 --0 0 T C 0 L. UU Q O :3 0 L QI Q)_ > O U :3 o U X 0 (1) ft, -I--E Q) - l O O C U) LU z C7 J D > U . O N o D H I-V) 13- a) I- I- I- z 1020410 LU j� LU � Z o z to --iU 0 0 o H 0 v) - Q a 0 O Q o LU z `-' cc N LU Ce `_', M M ,i -1.i 'i 00 � r.a o rN rq r~v " •-+ ® o Iflo ,j z (D 06 w mw z LL) U z � w oz z UJ c -j z -0 v LLo 0 Q0) 0 U) I QC o J U 0 L C o °' (tip/j a o .E 3 , c� 0 0 X 0- o x U�Q) o Q ,-, Z Q)D L O W°' -0 :L- 2: o U) I_q C: .0 M C aQ � Eco 1./)a 0 C o U U z" z -` �j F N W 0 L.w o Z U 6 t --t w 0 Oz J � o-0 LU v :0 --0 0 T C 0 L. UU Q O :3 0 L QI Q)_ > O U :3 o U X 0 (1) ft, -I--E Q) - l O O C U) LU E� Ill = D > U . O N o D JOS NO. a) .c 1020410 U 0 0 0 SCALE 0 -U) -1O NA N/A C= ,3 U, .0 - SHEET NO. 0 O Q o Q) co N T = C I- 0 n WITH FLASHER J 1 HADOcn�M CONTROL "V.55.53 EROSION CONROL BK PEOoNUMBEJJ- SAFETY FENCE 3.01 — --C O POPOS LIMI0 DISTUCONSTRUCTION ENTRANCE 3.02J NOACCE S O SITE PERMITTER FROM FGf'�mo,i WORTH CRO IN INC SCOTP R. COLUNS'Z -� SILT FENCE 3.05 j U No. 35791 PROPOSE T � � � � ��- PROPOR -SW—SSF- SUPER SILT FENCE W/89RE 305 ACCESS ROAD NOTE: EXISTING GRAVEL, SSB/ONALl INLET PROTECTION 307 SHALL BE MAINTAINED THROUG /P IP FROM PROFFIT ROAD TO THE SITE. I I HOUT THE CONSTRUCTION / WAINOF THE DEVELOPMENT. % -�fi_-___-„� I DD �� TEMPORARY DIVERSION DIKE 309 c 7j, I NOTE/:EXISTING GRAVEL' O SEDIMENT BASIN 3.14��F ACCESS ROAD FROM PROFFIT ROAD TO THE SITE. S LL BE MAINTAINED THROUGHOUT THE CONSTRUCTION / \ 1 DEVELOPMENT. \ O TS TEMPORARY SEED/NG 3.31 \ CUL\ PS PS PERMANENT STABILIZATI3 ON 32 PVE �� _ Xy TO REMyN \ � \ � 12' RCP PIPE FROM WASCK CONSTRUCTION ROAD STABILIZATION H MU \ \ I TO SEDIMENT TRAP 1 g MU MULCHING 3.35 / ® ENTIRE LENGTH OF ROAD EXISTING 15'0 FFSITE I c, (� O ACCESS EASEMENT — - TP o TREE PR07EC770N 3.39 z ISERVE TMP 32-34 -- PROPOSE ROW DIV RSIO \ j \ "^'^"^�m�^^ .B. 2303 PG 632 ACROSS EX GRAVEL � VF�L ACCESS RO r♦ ' � � � DUST CONTROL 339 sT1..s. f7L TREXX DIVERSION--- ' 7 f L f F s J I o� 1 \ \ ------ / / o 0 0 UM175 OF DISTURBANCE / O % I (ABTRSOILS BOUNDARY CTIONOS+ABILI.6Nb I U 'NNIW LENGTH OF ROAD STONE BAFFLE 06.0 PAVED CONSTRUCTION ENTRANCE EROS/ON MATTING W IN. 12x70' w°C FA/RCLOTH SKIMMER I,A� DRAINAGE DIVIDE i A I \ ! TV �� I \ NOTE: ALL SI-PES GREATTR THAN 4:1 SHALL RECEIVE EROSION PIOPOPED E -� A7 I \ _ 1 IPRAP OUT T P TECTIO op / A CONTROL MATTING. r IiN W-5' L-14' =2' / �/ I t V A I OSED TESPO ♦ OCKPILE TO SE '�[\ m / SU ROUNDED BV SILT 04.0 I / \ \ / � FENCE. - T6 ROPOSED C !�/ L PROPOSED LIMITS/ A' OF DISTURBANC M I v( �' M E�I \ ` ROPOSED LIMITS W \ \ / / I / m f T t F DISTURBANCE \ \ \ r CV z I I rTl/'� d I PROPOSED TREE a - _ _ \h / M ,moi ROTECTION FENCING Q \ \ //' \ / ! ( �Y Lu 2.73 �.ES r� myt}yP�.> � � W ` - \ PROPOSED FILTREXX -- f \ \ / I I PROPOSE SIL C I ..-i,. TC ((} y FF DIVERSION (TVP.) (--F I N \ r RUNOFF I \ SF tf �`� �'RAPHIC' SC LE � % \ � / I � 1--., Q I / / \ 'G F PROPOSED SILT FENCE O \ , \ _ \ ,Lo I -# _ _.- _ L 04 1 11 I 'I DC 502.0 tt /WIRE BACKING ALONG SSF \ /" ` STREAM (TVP) - - �- -y - \ N Z \ X ROPOSED 24 DI\/E SION BERM DD SRO �D TONE BAFFLE (2) \ SEE DE IL SHEET \ v ( TN HIT ) I \ ^ x / ONTRACTOR TO ENSURE \ �� x N 1 incl 40 i I � ��� / � \ � \ \ %1 � SITIVE DRAINAGE \ � y pS E-.� \ ` AL NG DIVERSION BERM \ 1 \ \ / �j7YE ` `-' [ / `J ) - \ O� _ PQSE 24' CMP ISER �- / EXIS�ING�5' OFFSITE \ --( v PROPOSED LIMITS \ \ ` , \� STONE OUTFALL INTO BASIN 1 g\ �\ /ACCESS EASEMENT �I J a SOIL OF DISTURBANC / 6'Wx5'LIl1'D (TVP.) PROPOSED EC-1 CLASS Al g0'� TO SERVE TMP 32-34 z_to TYPE - x.11 AC. �, - I - IPRAP EMERGENCY SPILLWAY or A �` V / D.B.2303 PG 832 / ,y,;" \ �� _ ) W=8"rrL 32', D=1.4' \ / I NOTE. EX STIG GRAVEL I / \ \ \ \ - - ()ROPOSED 18" CMP BARREL I W �' / \ \ \ _ ACCESS ROAD FROM PROFFIT ROAD TO THE SITE. EXISTING STRUCTURE / \ \ y Ss— =54' S=9.26% / / / SHALL BE MAINTAINED THROUGHOUT THE CONSTRUCTION TOB D M UCTURD ,,,...IIILLL � EXISTINNNG OHE T000 BE �r y, ♦ INV IN-093; INV OUT=488 \ 1 / - \ REI\10VED \\�' �4� \ �j \ .� l l 'I ) OF THE DEVELOPMENT. _ I 1 F- O t \TYF �0� �� LUNGE POOL A I ,/ < >- f— / 2$C3 TONEWEIR OUTFALL\ �- \ _ / I J Z ` \\ GID LIP LEVEL SPREAB(R // w o E ,',y�' \ 7, PORTON OF PROPOSE) 24" DIVERSION BERM I l I W U c TO BE REMOVED PMSE II i�PROPOSt AFETY A \ )TONE OUTFALL INTO BASIN % / I �IVI,�rTEIdLI N E I Y Lu 0 / IWx5'Lx2'D TYP. I FENCING .) ) \ ■ /� w W F PROPOSED STONE BAFFLE (2) m m -, � �� � \ U I F•- Y (J') ss SEE DETAIL SHEET V_ v —� MATCHLINE 2 v= y ,uw" fir"' E OSION CONTROLS PE o. F - N MATTING, ABILIZATIO \ TO BE DEMOLISHE __ �` LINAGE DIVIO ) ' { ^F\e ; ROPOSED 24 CMP RISER L F•- g ST ��`,�✓'.✓ EXISTING STRUC�T'URE Fj( SSOf UJ IJ J PROPOSED EC-1 CLASS Al TP \ �-(DC 1-� TS l II I I - RIPRAP EMERGENCVSPILLWA OP S, I,JJ V / z o PROPOSED TREE PROTECTIO \� �.J c, \ W=10 L 25'; D=1 4' � / y NOT : EXIISTING GRAVEL \ \ •y N J -_ FENCING ALONG PROP RTY LIN \ 5O t ; DI MENT � I \ �� s �' ACCESS ROAD FROM PR 1 /^_ F- E �cI DC F-�\ ° RE SHALL BE NELOPINEDT I I '-! \ �a m_-" '`•• \ TYPE \ ( pS IBAS.IN 2 \ ' 'Q.2J/ 486, RO OBED 18'CMP BARREL -r OFT ED�VELOPMENT_ I1" O 27g t^ /\� \ \ / \ 6 \ PROPOSED FILTREXX ' Vw' tF �HAS'E I'� \ 9 'C9Ai� RUNOFF DIVERSION (TVP. ~ LLJ o.98 ARES ROPO E SAFETY I F•- \ • 'rte t FENCING (TVP.) - ,.ox' 486 co M WASH (2ACK I \ w CW=0.30 / P 1 '^s ,,��,,��"" \`SDC '\. Ss I J ACCESS; A OFFSITE I \ \ - TC=� H EXISTING O ET O BES / �4 I O ACCESS EASEMENT O RAINAGE IDE REMOVE /A '�' l_ eS' ` TO SERVE TMP 32-34 \ V � I B. 2303 PG 632TS \ \ I x \ v C � \ � PROPOSED TURBIDITY \ CV ' \ EXISTING EMET R \� /( \ CURTAIN AT THE INLET E ATO REMAIN U DISTU ED\ �(- - �- , \ /' \ J'I ` t , �f OF ESTES RUNDE 0 i _ / \ P� 1„ � I - .,�„_� ( I I TO ARBOR LAKE - \ In _ � 1 % / 1 SEE ETAIL SHEET 2f>'C.3 �. i ° CONSTRUCTION Q \ ]OB NO. \ PL E POOL ♦ I BINT15E LENGTH I it 1 1 STONE WE OUTFALL 102041 1 PROPOSED TREE / EROSION ON MATRINGPE '� ' PAVED CONST ucTION ENTRAN \ �\ I 10 LIP LEVEL SPREADER I 1 R!OTECTION FENCING -- / I \ \ 2 MIN. 12'x70' ) ARBOR LAKES \ SCALE \ *. (7yP_) PROPOSED TREE O 1 "=40" �� ROTECTION FENCING J l / _ \'d�� F- �� _ " \ \ *v� --3- -, (TTP.) \ I SHEET NO. m \ \ 1 ------ MATCHLINE 4 TABLE, 3.32-D SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA dNt0f91I? I BEI3 S AT HIGH ND OF DEVICE r e POINTED UPHILL TO NT ENI UND FLOW sra y �tx FIL T S0)0( . J A f- (ALSO A,VAJLABLE IN 8-, Ir MID 24 _ DIAMETERS) WCIfMEN STANCES PLACM IV {O -C. 'rotal Lbs, COARSE AGGREGATE ECL Acre Minimum C"aLt La4Vn tKOVE SEDIMEW FROM THE - Commercial ur Residential 1-75-200 Ila4. Kentucky 31 Or Turf-1"ype Tall Fescue �5 1i �v z Improved PerennialR.ye rass 0 -.SCA Kentucky Bluegrass 0-5% 1i It 1 Ia l tea�an e wl� 200-250 tbs. - Kentucky 31 Or 71.'urf-Typ€: 'Fall Fescue, 100% jener.al SIope 0:1 o hes;s1 OF fNiSTAI i.ATION Kentucky 31 Fescue 1.25 lbs. - lied Top Grass 2 abs. - Seasonal Nurse Crop N4AX. VIAL ER LEVEL. Minimum 150 Lbs. Low -Maintenance 'Slope (Steeper than �11 4,. MINIMUM FREEBOARD 2`,1�tX., Cqp� f - Kentucky 31 Fescue. 108 lbs. - Red Top Grass 2 Ilan. - Seasonal Nurse Crop 20 lbs. CrC➢'R� nvetch * * l gI 150 lbs. Use seasonal nurse crop in =,CrdanCt With SCeding dates as :Mated below: February 16th through .April .. _ ......... . . .... Annual Faye May Ist through August 15th ............... Foxtail Millet August l6th through 0,�I ?ber < > .. , , „ , .. , . , , ,.... • ...Annual Rye November through February 15th .................. . Win't.er Rye Substitutc Sericea lespedeza for Ctownvetch east of Faun itloN, Na. (May thrl ugh September use trolled Sericea, all tatlaer periods, use utt.lttrliecl Sericea). It Flatpe:a :is used in hell of Cro�wnvetell, increase rate to 30 lbs./acre. All legume :seed must be properly i n cUla(ed. Wi epitlt; Lovegrass may be added to any slope or low -maintenance mix during wanner seeding periods; add tO-20 lbs./acre- in mixe& dNt0f91I? I BEI3 S AT HIGH ND OF DEVICE r e POINTED UPHILL TO NT ENI UND FLOW sra y �tx FIL T S0)0( . J A f- (ALSO A,VAJLABLE IN 8-, Ir MID 24 _ DIAMETERS) WCIfMEN STANCES PLACM IV {O -C. ROCK CHECK' DAM 2 ACRES OR LESS OF DRAINAGE AREA: �►�r��:�#ja r* tMUNI; Ik , VDOT #1 "DISTURBANCE COARSE AGGREGATE r�,,'zi r f /'' NOTES: FLOW tKOVE SEDIMEW FROM THE NOTES: 19 6 AT LOW END OF DEVICE UPSLOPE SIDE OF THE 60JOCm WHEN T LJIEI - POINTED DOWNHILL ACC MULATIONI RAS REACHED OF T NT PONDING EFFECTIVE HEIG T OF XKTw � SIDE ELEVATION AREA $ 2. SLOPES TER THAN 5% MAY REQUIRE ADDITIONAL STA131UZATION TINT° M N. PRACTICES matter, Must be anchored. S. SOXX- "e MAYBE SEEDED AT THE TIME: .........................e OF fNiSTAI i.ATION 'FILT -- --- T o` HGtJ. winter cover) j or by hand. N4AX. VIAL ER LEVEL. Minimum IV Do not use as mulch for 4,. MINIMUM FREEBOARD 2`,1�tX., Cqp� f 47 winter cower or during holt, 16' L31AC=AlFTER FILTREX?ttn) S©yXTH (ALSO AVAILABLE IN", 1211II4,, dry periods.` Apply as _ - DIAMETERS) gI slurry, X 2'X 36" 4'YC7OL1EN I I STADES PLACED 10'0.C. SINGLE INSTALLATION SECTION IFILTREX"X@RUNOFF DIVERSION SECTIONS ROCK CHECK' DAM 2 ACRES OR LESS OF DRAINAGE AREA: �►�r��:�#ja r* tMUNI; Ik , VDOT #1 ENTRANCE COARSE AGGREGATE 7&' --A--- FLOW 31 2-10 ACRES OF DRAINAGE AREA: (DOWNSTREAM VIEW) VDOT #1 Source: Va. DSWC Ill- 187 1992 CROSS SECTION VDOT #3, #357, #5, #ST> OR #57 COARSE AGGREGATE III GALVANIZED ikSifE MESH f Sh:E,T SECURE 'WIRE MESti TO TIMBER e FILTER CLOTH { 6X6 TREATED TIMBER ( j fi MIN. SECURE WIRE To GROUND m �. _ WIT WIRE STAPLES fCi � _._ ._......_. _...._.., . . SECU TIMSER UNDISTURBED - SOL � tY� 1 LEVEL SPREADER WITH RIGID LIP +-MIN PHYSIQAL REQUIREMENTS OF FILTER CWTH 00TED IN 'STD. <& SPCC. 3.19, RIPRAP Source: Va. DSWC and N.C. Erosion and Sediment Crintrol_Plarlh 4�n�i Design h�;ni��( Ill- 1.95 3,21, I OR Plate 3.21=2 3.20 11 1992 Plate 3.20-1 STONE CONSTRUCTION ENTRANCE DESIGN 7&' --A--- 1E 1, I A11NEME htT MIILCI IES: NOTES: Per Acre ' FILTER CL DTN_6" tdkN. A Ml1NTABLE BERM cOPttnmlaL � 1�i - 2 tans SIDE ELEVATION Free from weeds and curse EXISTING: CxROUND TINT° M N. 10' 301 matter, Must be anchored. 60 .........................e - ELLE-� T o` HGtJ. winter cover) j or by hand. B WASHRACK 1� fCPil[1NALI Minimum 35 lbs. Do not use as mulch for 1500 lbs. 47 winter cower or during holt, dry periods.` Apply as slurry, 30' 4 - G lons 1115 - 271 lbs, 112' HEtEk lengths. Air-dried. Ido not EXISTING; use in fine turf areas, Apply with Inutch blower or by PAVEMENT stand. Wood Chips 4 - 6 tolls 185 -275 lbs-. Free of coarse matter. Air- j •- VDUT ki .\ Pf5S27IVE DPAINAGC to* HIR CDJRSE AGGREGATE I TO S EAEMEt4T' � � AFEr4PF CNCi IRE VSCE L use in fide turf areas. Apply MOST EXTEND FULL WIDTH z_ with mulch lower, chip C iNGRESS AND EGRESS PLAN VIEW handler, or by haTlcl, ra 50 - 70 cu. 1-2 cu. yds. Free Of CO3Tse chatter. Air - 12` MIN. yds. dried. Do not use in fine. Shredded I w 0 r marl. FILTER CLO I rnulch blower; chip handler, SECTION A -A �.�61'tF UKL"Gkd Lt1xALlitl t. llrhil'. Js »4.0 SECTION B -B Source; Adapted from 1983 Mauland Standards for Soil r i Landyeiliattenl-Ctanarol, and Va. DSWC T"IX 3.31-A LIMING REQUIREMENTS FOR TEMPORARY SITES Recorrurnenldcj Application H Tet of Agrl!--m-ICmall Lim stone below 4.2 3 tons per acre 4.2 to 5.2 2 tonsper acre 5.2 to 6 I tern per acre Source: Va. DSWC x-92 T"LF 3.35-A tiRGANIrC MULCH NIA6Tl RIALS ANIS APPLICATION RATE DESIGN RA 1. ES: BEYOND MIILCI IES: NOTES: Per Acre Per I(M sq. ft, Straw or Hay 1�i - 2 tans 70 - 90 lbs. Free from weeds and curse RATE (14iireilixuln 2 10' 301 matter, Must be anchored. 60 tons for 115:1 blower Spread withmulchu 6.5' 21.1 winter cover) 40 or by hand. Fabler Mulch Minimum 35 lbs. Do not use as mulch for 1500 lbs. 47 winter cower or during holt, dry periods.` Apply as slurry, Corn Stalks 4 - G lons 1115 - 271 lbs, Cu, or shredded in 4-6" lengths. Air-dried. Ido not use in fine turf areas, Apply with Inutch blower or by stand. Wood Chips 4 - 6 tolls 185 -275 lbs-. Free of coarse matter. Air- O dried. Treat with 12 lbs Tlitrogen per tin: Do not L use in fide turf areas. Apply z_ with mulch lower, chip C ce handler, or by haTlcl, Bark Chips 50 - 70 cu. 1-2 cu. yds. Free Of CO3Tse chatter. Air - or yds. dried. Do not use in fine. Shredded w 0 'turf arcas. Apply with Bar),' rnulch blower; chip handler, ■^' or by hand. Wbcn fiber mulch is the only available mulch during periods when straw should be used, apply at a minimum rate of 2000 lbs./ac. or 45 lbs./1000 sq. ft. Elate 3.02-1 Source. Va. DSWC: 19912 FIERSPECTNE VIEW PERSPECTIVE VIEW PERSPECTIVE VtE'y'Nf PukSTIC FENCE METAL FENCE Source, Adapted f -om Conwelj Plastic-, jjIa(l VDOT _&.r 4ij� Bridge Standards ill -5 NOTE: PLASTIC SAFETY FENCE CAN BE UTILIZED ON THIS PROJECT FOR TREE PROTECTION AND FENCING REQUIREMENTS ON THE UPHILL SIDE OF GRADING. ALL LOCATIONS OF THE TREE PROTECTION FENCING ON THE DOWNSTREAM SIDE OF THE LAND )ISTURBANCE SHALL BE EITHER METAL FENCING OR ViAY BE PLASTIC FENCING IF THERE IS A DOUBLE -AYER OF E&S MEASURES OF PROTECTION IN PLACE, _-ONSISTING OF SILT FENCE, SILT FENCE WITH WIRE SACKING, FILTREXX SOXX, AND OR BIO -LOGS. SH, SLI '10 a Plate 3.41-1 II MB -7D PC I 2'-7" NOINMIAL 1/3 1/3 AIrNAGE SLOT I 1 � 1 oiLY_' I - KEYWAY 1' I I_� IN4 2V2I��- �.� PLAN VIEW # 4 BAR ---- t ELLE I -- - =1 W I �t14 STNM I , 6 BAR I CV � ELEVATION VIEW 8" X 12" BARRIER VERTICAL PALLS AS RNOTE 9. D. all SEE NOTE 9. SEE NOTE 7 N #4 BAR #6 B #4 STIRRUP #4 B r #6 CHAMFER EACH END END VIEW SECTION A -A NOTES-. 1. FOR POSITIVE CONNECTION DETAILS ANNA DIMENSIONS SEE SHEETS 501.59 - 501.61. 2. AT THE OPTION OF THE MANUFACTURER ADDITIONAL REINFORCING MAY BE ADDED TO THE PRECAST CONCRETE BARRIER FOR HANDLING. 3 CONCRETE SHALL BE 4000 P.S.I. MINIMUM. 4. BARRIER DELINEATOR SIZE, COLOR AND SPACING SHALL BE IN ACCORDANCE WITH THE SPECIFICATIONS. 5. COST OF DELINEATOR SHALL BE INCLUDED N THE PRICE BD FOR TRAFFIC BARBER SERVICE. 6. OTHER PRECAST TRAFFIC BARRIER SERVICE CONCRETE DESIGNS THAT MEET NCHRP 350 TEST REQUIREMENTS AND HAVE BEEN ACCEPTED BY VDOT AS AN ACCEPT- ABLE ALTERNATE TO THE STANDARD DESIGN MAY BE SUBSTITUTED. 7. A 1" PAP US MAY BE USED AS AN ALTERNATE FOR THE 4' CHAMFER. S. BAMER DELINEATOR REFLECTIVE SURFACE N N.I. INSTANCES SHALL BE FACING ONCOMING TRAFFIC. 9. BARRIER VERTICAL PANELS SHALL BE SPACED IN ACCORDANCE WITH VIRGINIA WORK AREA PROTECTION MANUAL. WHEN USING VDOT STANDARD MB -7D PC WITH THE PN AND LOOP POSITIVE CONNECTION ALLOW FOR A 6'-0" DYNAMIC DEFLECTION. PROVIR MIN. 60'OF BARRIER UPSTREAM AND DOWNSTREAM OF WORK ZONE FOR ANCHORAGE. FOR APPROVED NON-VDOT DESIGNS REFER TO MANUFACTURER'S INSTALLATION INSTRUCTIONS FOR DEFLECTIONS AND ANCHORAGE. *SUGGESTED SYSTTEEMS RATE SHEET 1OF 2 SPENMTO PRECAST TRAFFIC BARRIER SERVICE CONCRETE REV. 7/05 VIRGINIA DEPARTMENT OF TRANSPORTATION 105 501.45 512 TABLF, 3.394 ADHESIVES USED FOR DUST'CONTROL Water Application Dilution Type of Rate Adhesive d wive: Watery Nozzle alions .l cry Anionic Asphalt Emulsion 1,atex. 1��11Jlsiol� Resin in mater Acrylic ulsion (Non -Traffic) Adie Emulsion (Traffic) Source: Va. DSWC ».: Q. _RMS ...• o...•.', ,,, / / • / - ELLE =======_=_-_-_=_-=_ :1 12,5.1 4:1 7:1 3,5:1 IN DITCHES APPLY PROTECTIVE COVERING PAR4LLEL tO THE DIRECTION OF FLOW. USE CHECK SLOTS AS REQUIRED. AVOID JOINING MATERIAL IN THE CENTER OF THE DITCH IF AT ALL POSSIBLE. Coarse Spray' Fine 'Spray Fine Spray. Coarse Spray Coarse Spray 1,200 23 3001 450 350 ONST P SLOPES APPLY PR E COt/Ef�lNG PARALLEL TO THE DIRECTION OF FLOW AND ANCHOR SECURELY. VIII III=1�1�--I1U -III B/M SOIL STABILIZA TION BLANKET NOTE TREA TMEN T 1 SOIL STABILIZATION MATTING MATERNAL SHALL BE INSTALLED AS NO SCALE REQUESTED BY THE ALBEMARLE COUNTY EROSION CON77ROL INSPECTOR 1. SET POSTS AND EXCAVATE A 4'X4° 2. STAPLE WIRE FENCING TO THE POSTS. J. ATTACH THE FILTER FABRIC TO 4. BACKFILL ANID COMPACT THE TRENCH UPSLOPE ALONG THE LINE THE WIRE FENCE AND EXTEND EXCAVATED :SOIL. OF POSTS. IT INTO THE TRENCH. s i L It I I- -II1=I =:j Flow FLOW II„III=��1 �IIIIII-��1 I ]lidIII 4' EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. @(WITHSIL T FENCE WIRE SUPPORT) NO SCALE ATTACH FILTER FABFc TO STAKES OR POST EXTEND IT INTO THEP EXCA VA TED BACKFILLED COMPACTED )EN STAKE POST TH = 5' MIN. SIL T FENCE sF (WITHOUT WIRE SUPPORT) NO SCALE 00� L> I C, r° "1 SCOT;Tr R. COLLINS U No. 35791 ,� ��S`SIONAL FLARE RATES • DESIGN INSIDE SHY BEYOND SPEED LINELINE of W MPH SHY FLARE UNE FLARE L5 RATE RATE 70 10' 301 20.1 60 8' 261 115:1 50 6.5' 21.1 14.1 40 5' 16=1 10.1 30 1 3.5 1 1311 8:1 *SUGGESTED SYSTTEEMS RATE SHEET 1OF 2 SPENMTO PRECAST TRAFFIC BARRIER SERVICE CONCRETE REV. 7/05 VIRGINIA DEPARTMENT OF TRANSPORTATION 105 501.45 512 TABLF, 3.394 ADHESIVES USED FOR DUST'CONTROL Water Application Dilution Type of Rate Adhesive d wive: Watery Nozzle alions .l cry Anionic Asphalt Emulsion 1,atex. 1��11Jlsiol� Resin in mater Acrylic ulsion (Non -Traffic) Adie Emulsion (Traffic) Source: Va. DSWC ».: Q. _RMS ...• o...•.', ,,, / / • / - ELLE =======_=_-_-_=_-=_ :1 12,5.1 4:1 7:1 3,5:1 IN DITCHES APPLY PROTECTIVE COVERING PAR4LLEL tO THE DIRECTION OF FLOW. USE CHECK SLOTS AS REQUIRED. AVOID JOINING MATERIAL IN THE CENTER OF THE DITCH IF AT ALL POSSIBLE. Coarse Spray' Fine 'Spray Fine Spray. Coarse Spray Coarse Spray 1,200 23 3001 450 350 ONST P SLOPES APPLY PR E COt/Ef�lNG PARALLEL TO THE DIRECTION OF FLOW AND ANCHOR SECURELY. VIII III=1�1�--I1U -III B/M SOIL STABILIZA TION BLANKET NOTE TREA TMEN T 1 SOIL STABILIZATION MATTING MATERNAL SHALL BE INSTALLED AS NO SCALE REQUESTED BY THE ALBEMARLE COUNTY EROSION CON77ROL INSPECTOR 1. SET POSTS AND EXCAVATE A 4'X4° 2. STAPLE WIRE FENCING TO THE POSTS. J. ATTACH THE FILTER FABRIC TO 4. BACKFILL ANID COMPACT THE TRENCH UPSLOPE ALONG THE LINE THE WIRE FENCE AND EXTEND EXCAVATED :SOIL. OF POSTS. IT INTO THE TRENCH. s i L It I I- -II1=I =:j Flow FLOW II„III=��1 �IIIIII-��1 I ]lidIII 4' EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. @(WITHSIL T FENCE WIRE SUPPORT) NO SCALE ATTACH FILTER FABFc TO STAKES OR POST EXTEND IT INTO THEP EXCA VA TED BACKFILLED COMPACTED )EN STAKE POST TH = 5' MIN. SIL T FENCE sF (WITHOUT WIRE SUPPORT) NO SCALE 00� L> I C, r° "1 SCOT;Tr R. COLLINS U No. 35791 ,� ��S`SIONAL N M M (`n r` -I o o r11 CD N i i i v -I CD CD 0 U z Z of W Z) 21- z ® z to J �t ® 0 O � _ H a a a (�z LU LU H 47 Uj N M M (`n r` -I o o r11 CD N i i i v -I CD CD 0 J L9�.d 47 < 1 CN O L \ z_ C ce U w °D w Uw Uj z �z W�z ,i w 0 z ■^' a -I 0 � O .j V z C o II _ I...� 1� O 1 0-1 o Q) )� O L 0 z �� 3U) L O_ � x U N 0 O �. i L.L 0 0 � O Uj 1 UjT 0 11 � o II L0 -o c F- � O a Q Z_ N c L w wO z U UjLLJz o U z� In II ctUj , U0 U)�-16 -16 o UJ C L o UU O INNNNNNNNNNNN UjQ O II � yam/ ri. Ti> O C O 0 /go X Q) (D E CD O + � O O C Lu I 0 Lu U) U , O O JOB NO. 0 c 102041 0 kn (1) In o SCALE a CO CO AS SHOWN 6 (n Q) C U 00 CL SHEET NO. cD_ co C_ i o 1 SEDIMENT TRAP #i 1"- 20' ff 7 Sediment Trap 1 Design drainage area (acre) (<3) 0.13 trap It�n�e.sr' ,_ � ("REST or'. STONE INM U M5 ND ` # elevation (ft) area (sf) volIme(cy) r , 510.00 113.0 0 0 512.00 293.7 14.5 DRY STORAGE 514,00 614.5 47.5 0.0 WETSIORAGE...� CLftT'N 4#iiidNkS. f.FYpJ2+Sk wet storage: .,4 .. -Stt PIAi'L -3.f 4-t COAME r„4iE CIAS°;�,` 1 R'FRAP wet storage required (cy) (105,5*DA) 13,1 dotton, of stone weir (ft) ............. ...................... ..512.0 Soret storage provided at this elevation (cy) 14.5 slope of wet storage sides 2:1; weir length (ft) (6xDA) 0,8 dry storage; bottom of trap elevation (ft) 510 dry storage required (c) (100.5*DA) 13.1 bottom trap dimensions: 7x22' crest of stone weir x13.0 top of dam elevation (ft) 516 dry storage provided at this elevation (cy) 16.5 tap width of clam (ft) 4 slope of dry storage sides 2:1 top trap dimensions 22'x36' STONE BAFFLE TO BE KEYED INTO THE SIDES OF THE TRAP/BAS IN HEIGHT T OF STONE B;FFLES TO B E EQUAL TO 3/4 OF THE. TOTAL TRAP/POND DEPTH INFALL FOR TRAP (RIP :IAP APRON OR SLOPIE PIPE) PLAN VIEW STONE BAFFLE STONE BAFFLE USE ASTM D448 NO. 2 OR BAF NOT TO SCALE 3 STONE PL UNGE Pool B 1 ROCK LEVEL m SPREADER O U� 1.00' 88.00' 4.00' 487.00 � /"486.00' 486.007 _1. 00' i\ -EXISTING 1.50' 1.00' GROUND 1.00' 2.0' 1 0.0' 5' WIDTH -8' VDOT CLASS II RIPRAP DESIGN VALUES 0=16 cfs, DE=i.1 ft, D5o/DE=.35, D50= .38 ft, FR= 1.52, hs/DE=.8, hs=.96 ft, hs/D5o=2.52 TAILWATER CHECK TW=.27, tw/DE=.24, LOW TW BASIN DIMENSIONS POOL LENGTH GREATER THAN 9.6 ft (10 ft PROVIDED) BASIN LENGTH GREATER THAN 14.4 ft (15 ft PROVIDED) APPROACH THICKNESS= 1-3.4 ft (1.5 ft PROVIDED) BASIN THICKNESS=0,76 ft (1.o ft PROVIDED) Vx i f � r �'SED,AFE I / SEDIMENT BASIN #1 1"=20' r �} oo EMERGENCY OUTFALL /j 0 fr S� SPILLWAY - 499-oo STONE W=8', L=32' .,{ \ BAFFLES, �r f r ` `z8" CMP BARREL LF .26% 54 @ 9 Sgt LL ` `, INV IN - 493.0 \ r f' . i \+ U) i INV OUT. 488.o r �'} ' :L � 0 N PLUNGE POOL (SEE DETAIL BELOW)-, ! " 24CMP RISER _- TOP OF RISER - 497.77 r� f BOTTOM OF RISER ` y •• � - 493 ' \ / .i' 1 l '.r i Sediment Basin #1 Design 403.0 design high water (ft) 499.00 dewatering orifice elevation (ft) 495-72 top of dam (ft) 500.00 wet storage provided at this elevation (cy) t9WC f V0 SPILLWAY CRE-."' OF EMER'GENICY 2`'ti,Tti9U3 SPILLWAY f, 10,0 4.01 f, bottom of basin (ft) basin volumes: (using 2' contour intervals) cleanout elevation (ft) 494,45 (25-M STORM ELEV'.) 59'x102' elevation (ft) contour area (sf) volume (cy) upstream face slope: 2:1 493.00 3-258,6 0 l dry storage: slope of upstream face (Z 1) 478.00 1928,0 dry storage required (cy) (67*DA*1.5) 403,0 494.00 r 1 , .. .. - PoSD GREST 496.00 4859.4 r ` STORAGE _ - IT RM 498.00 6060.7 851.9 ' war A !mmE diameter of flexible tubing (in) (orifice+2°") 500.00 SEDIMENT BASIN #1 1"=20' r �} oo EMERGENCY OUTFALL /j 0 fr S� SPILLWAY - 499-oo STONE W=8', L=32' .,{ \ BAFFLES, �r f r ` `z8" CMP BARREL LF .26% 54 @ 9 Sgt LL ` `, INV IN - 493.0 \ r f' . i \+ U) i INV OUT. 488.o r �'} ' :L � 0 N PLUNGE POOL (SEE DETAIL BELOW)-, ! " 24CMP RISER _- TOP OF RISER - 497.77 r� f BOTTOM OF RISER ` y •• � - 493 ' \ / .i' 1 l '.r i Sediment Basin #1 Design 403.0 design high water (ft) 499.00 dewatering orifice elevation (ft) 495-72 top of dam (ft) 500.00 wet storage provided at this elevation (cy) t9WC f V0 SPILLWAY CRE-."' OF EMER'GENICY 2`'ti,Tti9U3 SPILLWAY drainage area (acres) 10,0 4.01 DESIGN HIGH WATER bottom of basin (ft) basin volumes: (using 2' contour intervals) cleanout elevation (ft) 494,45 (25-M STORM ELEV'.) 59'x102' elevation (ft) contour area (sf) volume (cy) upstream face slope: 2:1 493.00 3-258,6 0 ^. dry storage: slope of upstream face (Z 1) 478.00 1928,0 dry storage required (cy) (67*DA*1.5) 403,0 494.00 7 f 6 1 . 1 , .. .. - PoSD GREST 496.00 4859.4 448.3 ` STORAGE _ - IT RM 498.00 6060.7 851.9 ' war A !mmE diameter of flexible tubing (in) (orifice+2°") 500.00 7363:9 1348.4 tt collars: YES runoff: depth of water at spiIIIway crest (ft) 4.77 C (use 0,45 for bare earth) 0.6 5EI115dF:NT C(.E:4NCYLfS" F` 1t1T /`�� 2:1 tc (ruin) 10,7 slope of barrel (b) C ',VET " STORAGE REDUCED 1 2yr 4.0 Q 2yr 9.62 length of barrel in saturated zone (Ls) 35.77 TO 34 C.Y-/ ACR'E•) 15.35 wet stgrage: wet storage required (cy) (67*DA*1.5) 403.0 design high water (ft) 499.00 dewatering orifice elevation (ft) 495-72 top of dam (ft) 500.00 wet storage provided at this elevation (cy) 403.0 top width of darn (ft) 10,0 available volume before cleanout (cy) (51*DA) 136.3 bottom of basin (ft) 493.00 cleanout elevation (ft) 494,45 approx. bottom dimensions: 59'x102' distance from cleanout to orifice (ft) (> V) 1.27 upstream face slope: 2:1 f 476.00 downstream face slope: 3:1 dry storage: slope of upstream face (Z 1) 478.00 1928,0 dry storage required (cy) (67*DA*1.5) 403,0 baffles: NO principle spillway crest (ft) 497.77 length of flow, L (ft) 116 dry storage provided at this elevation (cy) 403.0 effective width, We (ft) 41.9 diameter of dewateringorifice (in) 4.0 L / We (baffles not required if > 2) 2.77 diameter of flexible tubing (in) (orifice+2°") 6.0 486,00 6878.0 1358,0 collars: YES runoff: depth of water at spiIIIway crest (ft) 4.77 C (use 0,45 for bare earth) 0.6 slope of upstream face (Z 1) 2:1 tc (ruin) 10,7 slope of barrel (b) 926% 1 2yr 4.0 Q 2yr 9.62 length of barrel in saturated zone (Ls) 35.77 1 25yr 5.8 Q 25yr 15.35 number collars required 2 dimension of collars 3.8'x3.8' princilell available head (ft) 1.2 emergency spillway: YES diameter riser (in) 24 required capacibj (Q25 -tip) (cfs) 0.0 spillway capacity, Qp (cfs) 16,00 bottom width (ft) 8 diameter trash rack (in) 36 slope of exist Channell (ft/ft) 10% barrel length (ft) 54 minimum length of exiit channel (ft) 30 head can barrel through en-Ibankment (ft) 9.00 crest of spillway (ft) 499.00 diameter of barrel (in) 18 PLUNGE' Pool , D-1 ROCK SPREADEREL O� 1.00' ' 4.00' .00' -1 -z-- 476.00' IT478.00 476.00' 477 1.00' 'EXISTING 1.50' 1.00' GROUND 1.00' T 2.0' 12.0' 6' WIDTH=8' VDOT CLASS II RIPRAP DESIGN VALUES Q=1o.64 cfs, DE=1.5 ft, D5o/DE=.2, D5o= .30 ft, FR= o.86, hs/DE=.75, hs=1.125 ft, hs/D5o=3.75 TAILWATER CHECK TW=,21, tw/DE=.14, LOW TW BASIN DIMENSIONS POOL LENGTH GREATER THAN 11.25 ft (12 ft PROVIDED) BASIN LENGTH GREATER THAN 16.88 ft (18 ft PROVIDED) APPROACH THICKNESS= o ft (1.5 ft PROV)DED) BASIN THICKNESSo.3 ft (1.0 ft PROVIDED) Sediment Basin #2 Design cosign high water (ft) 481.08 6jp of dam (it) _ tap width of darn (ft) 218.8 l',oftrn of basin (ft) 480.00 M#IN, 1"M SFfLLGYAY CRESS OF EMERO FiCwY °'NITH�?tbT l SPILLWAY drainage area(acres) .ares) ipstream face slope: 2 ='bwnstream face slope: 431.1 basin volumes: (using 2 contour intervals) 483.77 length of flow, L (ft) DESIGN HIGH WATER (215 _YR, effective width, We (ft) elevation (ft) contour area (sf) volurne (cy) f 476.00 1143.0 Otx. 01.6 slope of upstream face (Z 1) 478.00 1928,0 112.5 length of barrel in saturated zone (Ls) RVs ER CREST 480.00 2918.0 290.7 "DRY" STOPME 482.00 4112.x} 549,8 ~ WET W TG E m .w 36 484.00 5445.0 902.6 H crest of spillway (ft) 486,00 6878.0 1358,0 >Ee maExr ismaur pc iNT (' WET - ffORACE'. REDUCED TO 34 ;,'f,% ACRE) wet sucrate: Iwet storage required (cy) (67*DA* 1.5) dewatering orifice elevation (ft) wet storage provided at this elevation ('cy) available volume before cleanout (cy) (51*DA) cleanout elevation (ft) ;distance from cleanout to orifice (ft) (> 1') dry storage: dry storage required (cy) (67*DA*1.5) principie spillway crest (ft) dry storage provided at this elevation (cy) diameter of dewatering orifice (in) diameter of flexible tubing (in) (orifice+2") runoff: C (use 0.45 for bare earth) tc (min) 12yr 3.7 Q 2yr 125yr 6.2 Q 25yr principle spillway available head (ft) diameter riser (in) spillway capacity, Qp (cfs) diameter trash rack (in) barrel length (ft) head on barrel through embankment (ft) diameter of barrel (in) 431,1 cosign high water (ft) 481.08 6jp of dam (it) 431.1 tap width of darn (ft) 218.8 l',oftrn of basin (ft) 480.00 approx, bottom dimensions: 1.08 ipstream face slope: Z ='bwnstream face slope: 431.1 baffles: 483.77 length of flow, L (ft) 431.1 effective width, We (ft) 5.0 L I We (baffles not required if > 2) 7.0 collars: H depth of water at spillway crest (ft) 01.6 slope of upstream face (Z 1) 13 slope of barrel (~gib) 9.52 length of barrel in saturated zone (Ls) 17.55 number collars required dimension of collars 1.0 erner enc s Illwa 24 required capacity (Q25 -0p) (cfs) 9.52 bottom width (ft) 36 slope of exist channel (ft/ft) 50 minimum length of exit channel (ft) 6.27 crest of spillway (ft) 18 �4,111 O�v SCOTT R. COLLINS Z' No. 35791 2- �" ���Szorrav E��z � 3 Z o� Wa� W E� �o SEDIMENT BASIN SB -,2s TOPSOIL ~ U)EXISTING GROUND � z NTS EMBANKMENT HEIGHT 10.0' W W 10 36" DIA. 15" HIGH o TOP OF DAM ELEV. = 486.00 16 GA. GAL V. STEEL W w T\ ANTI -VORTEX DEVICE W z 25 YR. STORM 1.0 MIN. AIR W ELEV. = 484.77' f` - 0 r- r 1.0' MIN . 24 " DIA. CMP RISER MISER TOP ELEV.=483.77 o Ti,E. 1' SCARIFIED KEY FOR F_ E >>4 LLJD 11 DIA. DEWATERING o :.):4::i:i:'sui:>Ri:"t;i?:i Ey. ) Q Y , DEVICE _ >� W �� >15>=<>t:4« i€«<>>><>:::::>:: INV. OUT= 478.0 �, UPSTREAM TOE OF DAM EXISTING GROUND o ELEV. = 476.0 ° < m al MIN. 30" COMPACTED SOIL OR A GGREGA TE OVER E BOTTOM OF BASIN BASE PLATE a o ELEV. = 476.00 8x8 x1/4" THICK GAL V. CLAY CORED DAM STEEL BASE PLA TE LU KEYED INTO THE U EXISTING GROUND LU E INV. IN = 479.75' oU) 18" CMP JOB No. (2) 4.7' X 4.7' GAL V. STEEL LEN GTH = 50' 102 04 1 ANTI -SEEP COLLARS SLOPE=3.5% Z 0 d J U U) Uj LU Uj Z LLJ J Q O O O LU H W ce � 3 Z o� Wa� W E� �o SEDIMENT BASIN SB -,2s TOPSOIL ~ U)EXISTING GROUND � z NTS EMBANKMENT HEIGHT 10.0' W W 10 36" DIA. 15" HIGH o TOP OF DAM ELEV. = 486.00 16 GA. GAL V. STEEL W w T\ ANTI -VORTEX DEVICE W z 25 YR. STORM 1.0 MIN. AIR W ELEV. = 484.77' f` - 0 r- r 1.0' MIN . 24 " DIA. CMP RISER MISER TOP ELEV.=483.77 o Ti,E. 1' SCARIFIED KEY FOR F_ E >>4 LLJD 11 DIA. DEWATERING o :.):4::i:i:'sui:>Ri:"t;i?:i Ey. ) Q Y , DEVICE _ >� W �� >15>=<>t:4« i€«<>>><>:::::>:: INV. OUT= 478.0 �, UPSTREAM TOE OF DAM EXISTING GROUND o ELEV. = 476.0 ° < m al MIN. 30" COMPACTED SOIL OR A GGREGA TE OVER E BOTTOM OF BASIN BASE PLATE a o ELEV. = 476.00 8x8 x1/4" THICK GAL V. CLAY CORED DAM STEEL BASE PLA TE LU KEYED INTO THE U EXISTING GROUND LU E INV. IN = 479.75' oU) 18" CMP JOB No. (2) 4.7' X 4.7' GAL V. STEEL LEN GTH = 50' 102 04 1 ANTI -SEEP COLLARS SLOPE=3.5% SEDIMENT TRAP i IS NOW SEDIMENT BASIN t ON SHEET 10 Sediment Trap 3 design design high water (ft) drainage area (acres.) � basin volumes: (using 2' contour intervals) drainage area (@ores) (<3) 0.29 471 s 00 2616,0 472.00 trap volutes:7 474..00 6 3 CR£STOFSTONE +NEIR, CR�Lrr? t� sRPLF �l 5431.0 elevation (ft) area (sf) volurrie(cy) rL 8176,0 1,0 y 481 °00 606.0' 0.0 9699.0 486050 10107.0 482.00 809.0 26,1 DIVE STORAGE effective width, We (ft) a 483.00 1037:0 60.2' 2968.5 available volume before cleanout (cy) (min. 51 *DA) 484.00 1289.0 10.3.2 distance from cleanout to orifice (ft) (> 1') YES dry storage: depth of water at spillway crest (ft) dry storage required (cy) (100.5*DA) 0.6 v+d[T :sTOr?i5,6k 2:1 dry storage provided at this elevation (cy) slope of barrel (Sia) diameter of dewatering orifice (in) 29.59 diameter of flexible tubing (in) (orifice+2") r C tt�e } .�..icit .,Lf3TH_ W; wet storage: number collars required C (use 0.45 for bare earth) to (min) wet storage required (cy) (67*DA*1.5) 29.1 S£€. F`ifi.7'E , f�5-f G�1RF{SE AGGRfiG.ATE' CW:55 :,' if R bottom of stone weir (ft) 482.2 Detours Available �Ovefbpping Stage Length wet storage provided at this elevation (cy) 30.0 Flood Plain Management Int. El. 480.72 So= 2.38'9 Inv, EL 478.50 slope of iAA t storage sides 1:1 �Orl1. Gr. Elev. L= 93,36 Orifi. Gr. Eley. Q _ ___CFS weir length (ft) (9X1DA) 2,6 .......... dry storage: 0 bottom of trap elevation (ft) 481 dry storage required (cy) (67*DA�1.5) 29.1 bottom trap dimensions: rl Treat. COMMENT 22' x 37+ crest of stone weir 480.0 top of dam elevation (ft) Ke 484' dry storage provided at this elevation (cy)_ 46.4 top width of darn (ft) LSo HW 4 slope of dry storage sides 2:1 _ Jop trap dimensions 34'X 49' NEIR ! =2.6'; D=1.8' At f r e ,1 CLASS I RIPRAP OUTFALL W=1o', L=16', D=2.5' �f 1 , 30' CMP BARREL, 'So LF @a 0.50% INV IN. 476.20 INV OUT. 475.95 Sediment Basin #3 Design design high water (ft) drainage area (acres.) � basin volumes: (using 2' contour intervals) r elevation (ft) contour area (sf) 471 s 00 2616,0 472.00 3116.0 474..00 4213,0 476.00 5431.0 478.00 6753.0 480.00 8176,0 481.50 9309,0 482.00 9699.0 486050 10107.0 wet storage: 2220.5 wet storage required (cy) (16)0, a+IDA) effective width, We (ft) dewatering orifice elevation (ft) 239!6.5 wet storage provided at this elevation (cy) 2968.5 available volume before cleanout (cy) (min. 51 *DA) cleanout elevation (ft) distance from cleanout to orifice (ft) (> 1') YES dry storage: depth of water at spillway crest (ft) dry storage required (cy) (100.5*DA) 0.6 principle spillway crest (ft) 2:1 dry storage provided at this elevation (cy) slope of barrel (Sia) diameter of dewatering orifice (in) 29.59 diameter of flexible tubing (in) (orifice+2") 63,98 runoff: number collars required C (use 0.45 for bare earth) to (min) 6.2'x 6,2' 12yr 4;5 Q 2yr I25yr 6.5 Q 25yr available head (ft) diameter riser (ire) spillway capacity, Qp (cfs) diameter trash rack (in) barrel length (ft) head on barrel through embankment (ft) diameter of barrel (in) SEDIMENT BASIN #3 1°=20' STONE BAFFLES 36" RCP RISER TOP OF RISER - 481,45 BOTTOM OF RISER - 476.20 EARTHEN EMERGENCY C)UTFALL SPILLWAY ELEV. 482.50 W=17.5', L=40' 10.96 design high water (ft) l � top of darn (ft) r volume (cy)�:' top width of dam (ft) 10,0 845.3 bottom of basin (ft) 471.00 O M+Pt 11' '1 1061.0 1.14 376.4 2:1 732.7 downstream face slope. �f 11131.5 1735.1 STONE BAFFLES 36" RCP RISER TOP OF RISER - 481,45 BOTTOM OF RISER - 476.20 EARTHEN EMERGENCY C)UTFALL SPILLWAY ELEV. 482.50 W=17.5', L=40' 10.96 design high water (ft) 482.50 DESIGN HIGH `WATER top of darn (ft) (25 -YR.. VORM EL€'d,,) volume (cy)�:' top width of dam (ft) 10,0 845.3 bottom of basin (ft) 471.00 O M+Pt 11' '1 1061.0 1.14 376.4 2:1 732.7 downstream face slope. 1183,0 11131.5 1735.1 YES 481.45 SWIMENT CLF-AhiOUr MN7 2220.5 WEI " SiORA'aE kbid u effective width, We (ft) TO 34 C.Y./ ?.ARE) 239!6.5 L I We (baffles not required if > 2) 2968.5 8.0 h1EId.11Wl5PiLLV'JAy C'AE:ST Q€• t'hfE,RGE,#wY Z'WITHOUT SP#t,1YAY RtSEc +rRI:Si c�rVr .,3i9i;'v OEM 110.1,5 design high water (ft) 482.50 477.64 top of darn (ft) 483.50 1101.5 top width of dam (ft) 10,0 845.3 bottom of basin (ft) 471.00 476.50 approx. bottom dirriensions. 28'x 102' 1.14 upstream face slope: 2:1 30 downstream face slope. 3:1 11131.5 baffles: YES 481.45 length of flow, L (ft) 102 1101,5 effective width, We (ft) 28 6.0 L I We (baffles not required if > 2) 3,64 8.0 Culvert #1 Cw - 0,61, To - 15.0 min., 12 - 3.5 inihr,111 t 4.8 in/hr collars: YES depth of water at spillway crest (ft) 10.45 0.6 slope of upstream face (Z:1) 2:1 8 slope of barrel (Sia) 0.50% 29.59 length of barrel in saturated zone (Ls) 63,98 47.02 number collars required 2 dimension of collars 6.2'x 6,2' 1.0 emergency s ip ilay; YES 36 required capacity (Q25-Qp) (cfs) 17.4 .29.59 bottom width (ft) 40 42 slope of exist channel (ftift) 4% 50 minimum length of exit channel (ft) 17.5 6.55 crest of spillway (ft) 482.50 30 - SEDIMENT BASIN 0".07D-3 8" DIA. DEWA TERING DEVICE- TUBING UPSTREAM TOE OF DAM ELEV. , MIN. 30" COMPACTED SOIL OR AGGREGA TE 0 VER BOTTOM OF BASIN BASE PLATE­� ELEV. 471.00 8x8 x1/4" THICK GALV. STEEL BASE PLATE IN V. IN = 476.20' (2) 6.2' X 6.2' GAL V° STEEL ANTI -SEEP COLLARS 6" TOPSOIL � EMBANKMENT HEIGHT 7.55 '--'54" DIA. 17" HIGH ,,,--'14 GA. GALV. STEEL ANTI-VOR7sX DEVICE _-,---36" DIA. CMP RISER 1' SCARIFIED KEY FOR SOIL COHESION INV. OUT = 475.95' EXISTING GROUND CLAY CORED DAM KEYED INTO THE EXISTING GROUND 30" CMP LENGTH=50' SLOPE=0.50%4 NOTE: EMERGENCY SPILLWAY INCLUDED AT ELEV. 482.50 10+00 10+50 11+00 11+50 12+00 12+25 C U LV E RT AT 'A' Project ESTES PARK EARLY GRADING PERMIT Man Sheet No, Designer KKW Sheet 1 of 1 Culvert#1 Rev. Date Date 12/18/12 �+ z z z LU � zun LU z ------------------- HYDROLOGICAL DATA; 57Q U QQ AHW Controls D,A.= 12.78 ac. '140 yr. Flood plain elev'. _ LU ! Design AHW depth elan. Structures l elev. freq. TWelev. Culvert #1 Cw - 0,61, To - 15.0 min., 12 - 3.5 inihr,111 t 4.8 in/hr Shoulder - W ole,. 494.45 _ Ce I CL elev. 494 DISCHARGES USED RISK ASSESSMENT l ADT � Skew ° Gover 1` Q 2 = 26.84 CFS Q 10 = 36.81 CFS Detours Available �Ovefbpping Stage Length Q - CFS Flood Plain Management Int. El. 480.72 So= 2.38'9 Inv, EL 478.50 Q = CFS Criteria and Significant Impact �Orl1. Gr. Elev. L= 93,36 Orifi. Gr. Eley. Q _ ___CFS _ -- CULVERT TYPE & SIZE 0 QiB HEAUNATER COMPUTATIONS CONT. HK ELEV, OUTLET VELOCITY rl Treat. COMMENT INLET CONT. OUTLET CONTROL HWb7 HW Ke do (dc+D)12 ho H LSo HW C.M. Smooth Inlet Controlled (+2,2`). Velocityin pipe (11.93 ft's) is not Proposed 48" RCP Culvert (2 yr) 26.84 26.84 ` 0.55 2.2 0.5 1.6 1.43 1.43 0.05 2,2 -0.7 2..2 11.93 NIA errosive on concrete. Inlet Controlled (+2.6'). Velocity in pipe (13.06 CJs) is not. Proposed 48" RCP Culvert (10 yr) 36,81 36,81 i 01,65 2.6 0<5 1,75 1.50 1,54 01 22 1-0.6 2,6 13.06 NIA errosive on concrete. I Design Flood Exceed, Prob. Elev, Overtop Flood Exceed, Prob, Elev, SUMMARY & RECOMMENDATIONS: Base Flood 1% Exceed. Prob. Elev. TURBIDITY BARRIERS TI1RB14_)TY BA RRL ERS ara a B M P desiQned to rest'ri ut th e f I %-v af sediment-IaderE stormv ater rt_1t-off from .3 coinsti-.,iction ;•ite, to keep it contained in a 11mited area, and •aIIo3,v tha seg linnent to settle ol-(t before being carried Into •adjaieE=vit or jiJining •=r1+,ai.erf®our_es. Tf;Ei_II=`H Gi_a'i`c"' Turbidib," .F3r-3rriers ,are manilkactured I:y AER-F'_�_I, Inc., tha •,vor'ld s I•nrgest: prod Lice r of t'htrse critical Ni c! "d i I -c- ; . ELO ATING "FIJRB113ITY B A1?RIERS c;orm`oist of a tcip fI+_Etation hoom, an iniper'viou - fabric curtain extending v _ _ F ... •fr `Yea.: ifr� f --,r,.. .r�- �- _ heavy u F 1 �+ ' f' f , ( i r 6� ��+'' and r �+, ( sl:eel .. r i- into ," hem •T E1 E a,€r�irrr3 J��tirI,I.�r1 �iri irr ,•�_..r, �r€d � l�•__., ��l.��rli��d____I _I^l�ir�t m,•al�_i €rl__ �Ii_rrI �l_ri� the entir e b0t� oFA of the cur�_•�iri to provide Lyall ast to keep the curtain '. er bcal in the vvate'r • End l"dr.:,`f'ns are sealed around f_0Pe and Bron-irrieted to alloy; atAacllmentto each Loti`ier %etilth rope or Uoltr"nU-•1t evashers, Color is "t"oln uhi "amu Y YeIIeyq, Type ° W ° a ,r s , W TSrpE= I is the n-3ostfr9quP.ntJ'€;` specified b-grrier Ori iJ-ieTOI.,I(H G€_-i'"'rf` line. It i`= recorrirriended for- s oinEtb 7E_tion sites located in protected creat th-at are exposed only to light vvinds and to current velocities of les tharl one foot per Second, This t/pe of site m•a°r` include ponds, shallovlak.es, ;;,n mall --tt am and m at sly+ -a, Anchorage consist -ling of stalk.es or ic:o l;_r='t ' blor!:s may Use required to maintain the l_arrier In it_= required position, "Barrier- sections are connected by rope lacing or nylon tie's %eihich nli_I=•t be furnished by other's. TH 'R.scOTrcOLLINS o- ,U No. 35791 "M M M ri C0 Orr ty ® cv t� N � N c'v .-+ o o C) z Q � J Q U) � �+ z z z LU � zun LU z J 57Q U QQ U_ Ln LU W Ce "M M M ri C0 Orr ty ® cv t� N � N c'v .-+ o o C) )d