Loading...
HomeMy WebLinkAboutSDP200000128 Plan - Approved Erosion Control Plan 2001-04-08r DATA: ItlV. 1. THE O W NER OF THIS PROPERTY IS: L NARRATIVE 1. UNIVERSITY VIRGINIA 0 F FOUNDATION 9. ES -9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL 2333 OLD IVY ROAD MS-17. [4(1 7 )] W H ERE CO N STRUCTO VE HI CLE ACCESS ROUTES INTERSECT P.O. BOX 9023 CHARLOTTESVILLE, VA 22903 1. A PRE - CONSTRUCTION CONFERENCE MAY BE REQUIRED. MEASURES PERIODICALLY (AT LEAST DAILY) AN6 AFTER EACH RUNOFF- TELEPHONE: (804) 982 -4848 CONTACT THE COUNTY ENVIRONMENTAL INSPECTOR FACSIMILE: (804) 982 -4852 TO COORDINATE. PRODUCING' RAINFALL' EVENT. ANY NECESSARY REPAIRS OR CLEANUP 2. INSTALL .CONSTRUCTION ENTRANCE, TREE PROTECTION, & 2. THESE PLANS HAVE BEEN PREPARED BY: DIVERSION DIKE AS A FIRST STEP IN LAND DISTURBANCE. TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES DRAPER ADEN ASSOCIATES 3. CONSTRUCT THE TEMPORARY SEDIMENT BASIN IN ACCORDANCE 8090 VILLA PARK DRIVE WITH THE DETAILS SHOWN ON THE CONSTRUCTION `DOCUMENTS. SHALL BE MADE IMMEDIATELY. THE CONTRACTOR WILL MAINTAIN A RICHMOND, VA ' 23228 TELEPHONE: (804) 264 -2228 THE SEDIMENT BASIN SHELL REMAINS IN PLACE FOR BOTH FACSIMILE: (804) 264 -8773 PHASES OF CONSTRUCTION. LOG OF INSPECTIONS, MAINTENANCE PERFORMED AND REPAIRS MADE 4. AFTER ALL EROSION CONTROL FEATURES HAVE BEEN INSTALLED, 3. SOURCE OF INFORMATION: BEGIN CLEARING & GRUBBING OF THE SITE. FOR INSPECTION BY THE OWNER AND THE DEPARTMENT OF CONSERVATION COUNTY RESEARCH AND/OR OWNER PROVIDED. 5. AS THE CLEARING & GRUBBING PROCEEDS,' THE CONTRACTOR SHALL 4. SOURCE OF SURVEY: MAINTAIN . THE USE OF THE SEDIMENT BASIN. IN BOTH CASES, AND RECREATION DIVISION OF SOIL AND WATER CONSERVATION. DRAPER ADEN ASSOCIATES . (FIELD SURVEY) THE CONTRACTOR SHALL ADJUST THE DIVERSION DIKE AS AIR SURVEY CORP. (AERIAL TOPOGRAPHY) NECESSARY. DATUM: USGS -NGS 29 6. IN 'AREAS WHERE THE CONTRACTOR HAS ADJUSTED THE 5. PARCEL E: DIVERSION DIKE TO ,MAINTAIN THE USE OF THE SEDIMENT MS -1. [4(1)] PERMANENT OR TEMPORARY' SOIL STABILIZATION SHALL BE ' 33.26 ACRES OF THE NORTH FORK OFFICE PARK BASIN, & DISTURBED AREAS ARE LEFT OUTSIDE OF THE CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. DIVERSION, INSTALL SUPPLEMENTAL SILT FENCE. APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS 'AFTER FINAL GRADE NORTH FORK I5 COMPRISED OF: TAX MAP: 32 - 7. 'AFAR CONSTRUCTION IS COMPLETE, CONTACT THE COUNTY ENVIRONMENTAL 1 REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL S .. _ PARCEL: 6A PECTOR FOR FINAL INSPECTION. UPON APPROVAL, REMOVE ALL REMAINING 3. ZONING: PD -IP, THIS PROPERTY LIES WITHIN AN AIRPORT IMPACT AREA (AIA) TEMPORARY EROSION CONTROL' FEATURES. NOTE: SEDIMENT BASIN AND STABILIZATION SHALL BE APPLIED WITHIN SEVEN_ DAYS TO DENUDED PROFFERS: AS LISTED IN PROFFER STATEMENT BY Ei' ERSION DIKE SHALL REMAIN IN PLACE. 'APPLY PERMANENT SEEDING TO UNIVERSITY OF VIRGINIA REAL ESTATE FOUNDATION, BANKS OF BASIN AND DIVERSION DIKE. AREAS THAT MAY NOT BE AT _ FINAL GRADE BUT WILL REMAIN DORMANT MARCH 21 1996 REF 7MA- 95--04 ZMA- -98 -27 8 IF CUT SLOPE STABILIZATION DOES NOT MEET ENVIRONMENTAL INSPECTOR'S APPROVAL, JUTE MESH MAY BE REQUIRED. 6. STANDARDS AND SPECIFICATIONS: 1. VIRGINIA DEPARTMENT OF TRANSPORTATION (V.D.O.T.) ■ ROAD AND BRIDGE SPE IFICOONS,' 1993, 1994. � _ • 2. VIRGINIA DEPARTMENT OF CONSERVATION AND RECREATION, DIVISION OF SOIL AND WATER CONSERVATION, VIRGINIA EROSION SHEET TITLE SHEET NO, AND SEDIMENT CONTROL HANDBOOK, 3RD EDITION, 1992. 3. ALBEMARLE COUNTY SERVICE AUTHORITY, GENERAL WATER AN COVE H E NOTES .. ...... . . .. ... .. C-1 R CONSTRUCTION PECIFICATIONS, JANUARY 15, 1998. �-�E $ DEMOLITION & EROSION CONTROL P C -2 4. THE UNIVERSITY OF VIRGINIA FOUNDATION 1998. , DETAILS C'3 NORTH FORK DESIGN CODE, MAY ; 28, ....... > .. ...... . 7. THIS 1S AN INTERNAL PARCEL TO THE NORTH FORK OFFICE PARK, PARCEL E ADJACENT OWNER & PARCEL INFORMATION SHOWN ON DRAWING C -2. TOTAL NUMBER OF SHEETS: 3 SEDIMENT EROSION AND CONTROL NOTES ItlV. 77d3V'3Y _N 1. ES 1. UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND 9. ES -9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL 16. MS-17. [4(1 7 )] W H ERE CO N STRUCTO VE HI CLE ACCESS ROUTES INTERSECT STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE MEASURES PERIODICALLY (AT LEAST DAILY) AN6 AFTER EACH RUNOFF- PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS PRODUCING' RAINFALL' EVENT. ANY NECESSARY REPAIRS OR CLEANUP TRANSPORT OF SEDIMENT BY VEHCULAR TRACKING ONTO THE PAVED AND SPECIFICATIONS OF THE VIRGINIA` EROSION AND SEDIMENT TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD CONTROL ;HANDBOOK AND VIRGINIA VR 625 -02 -00 SHALL BE MADE IMMEDIATELY. THE CONTRACTOR WILL MAINTAIN A SURFACE, THE ROAD_ SHALL BE CLEANED THOROUGHLY AT THE END OF EROSION AND SEDIMENT CONTROL REGULATIONS. LOG OF INSPECTIONS, MAINTENANCE PERFORMED AND REPAIRS MADE EACH ° DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY FOR INSPECTION BY THE OWNER AND THE DEPARTMENT OF CONSERVATION SHOVELING OR SWEEPING AND TRANSPORTED TO A' SEDIMENT CONTROL 2. ES -2. THE DIVISION OF SOIL AND WATER CONSERVATION OF THE AND RECREATION DIVISION OF SOIL AND WATER CONSERVATION. DISPOSAL AREA.' STREET WASHING SHALL BE ALLOWED ONLY AFTER DEPARTMENT OF CONSERVATION AND RECREATION MUST BE NOTIFIED SEDIMENT IS REMOVED. IN THIS MANNER. THIS PROVISION SHALL N W . -- CONSTRUCTION (804-371-0041) O E E WEEK PRIOR TO THE PRE 10. MS -1. [4(1)] PERMANENT OR TEMPORARY' SOIL STABILIZATION SHALL BE ' APPLY TO INDIVIDUAL' SUBDIVISION LOTS AS WELL AS TO LARGER LAND -DISTURBING ACTIVITIES. CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS 'AFTER FINAL GRADE 1 REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL S 17. P MS -18.` [4(18 }] ALL TEMPORARY EROSION CONTROL MEASURES SHALL 3. E ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO STABILIZATION SHALL BE APPLIED WITHIN SEVEN_ DAYS TO DENUDED BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION, OR AFTER BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING, GRADING BE AREAS THAT MAY NOT BE AT _ FINAL GRADE BUT WILL REMAIN DORMANT THE TEMPORARY MEASURES ARE f b LONGER NEEDED UNLESS OTHERWISE OR LAND- DISTURBING AND SEQUENCE OF CONSTRUCTION APPROVED. (UNDISTURBED) FOR LONGER THAN 30 DAYS. , PERMANENT STABILIZATION - SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE AUTHORIZED BY THE LOCAL PROGFAM ADMINISTRATOR. TRAPPED SEDIMENT ° AND THE DISTURBED SOIL AREAS RESULTING FROM THE ` DISPOSITION OF 4. ES -4. A COPY OF THE APPROVED EROSION AND SEDIMENT THAN ONE YEAR. TEMPORARY MEASURES SHALL BE ?ERMANENTLY STABILIZED TO PREVENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 11. MS -2. 4 2 DURING CONSTRUCTION OF THE PROJECT, SOIL E O] FURTHER EROSION AND SEDIMENTATION. � 5. ES PRIOR TO LAND DISTURBING ACTIVITIES IN AREAS OTHER STOCKPILES SHALL' BE STABILIZED OR `'PROTECTED WITH ,SEDIMENT 14. MS-5. 4(5)] STABILIZATION M HA PP T EARTHEN STAB LIZATIO MEASURES SHALL BE APPLIED 0 EAR E -5. THAN ON THESE PLANS OR OFF-SITE FILL ACTIVITIES, TRAPPING `MEASURES. THE CONTRACTOR IS RESPONSIBLE FOR THE STRUCTURES SUCH AS DAMS " DIKES AND DIVERSIONS IMMEDIATELY , .INDICATED THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL SOIL AFTER INSTALLATION. PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE DEPARTMENT STOCKPILES ON SITE AS WELL AS SOIL INTENTIONALLY TRANSPORTED 15. MS -10. 4 ALL STORM SEWER INLETS THAT ARE MADE OPERABLE 10 [ ( )] OF CONSERVATION AND RECREATION/DIVISION OF SOIL AND WATER FROM THE PROJECT SITE. DURING CONSTRUCTION SHALL BE PROTECTED' SO THAT ' SEDIMENT- CONSERVATION. 12. MS-3.&6-3)j A VEGETATIVE COVER SHALL BE ESTABLISHED LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM WITHOUT FIRST 6. - 1 F INSTALLATION OF ES 6. THE CONTRACTOR !S RESPONSIBLE OR .PERMANENT D AREAS NOT OTHERWISE PERMANENTLY STABILIZED. ON DDE BEING FILTERED OR OTHERWISE TP,EATED TO REMOVE SEDIMENT. ANY ADDITIONAL EROSION CONTROL MEASURES' NECESSARY TO PREVENT BY THE DIVISION OF PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED ` A GROUND COVER IS ACHIEVED :THAT, IN THE OPINION OF THE • Draper Associates EROSION AND SEDIMENTATION AS DETERMINED > ` DIVISION OF SOIL AND WATER CONSERVATION OF THE DEPARTMENT OF DEPARTMENT OF CONSERVATION SOIL AND WATER CONSERVATION OF THE DE RVATION AND RECREATION IS UNIFORM MATURE ENOUGH TO CONSERVATION • ' ',. Blacksburg Richmond, Virginia AND RECREATION. SURVIVE AND WILL INHIBIT EROSION. Engineerag o Surveying v Environmental Services 7. - SITE GRADING IS TO DRAIN TO THE PERIMETER CONTROLS ES 7. AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING 13. MS -4. [4 (4)] SEDIMENT BASINS AND TRAPS, PERIMETER DIKES, SEDIMENT [ ()] ■ ° 2 UO'& Oft 0 CONSTRUCTION, UNTIL FINAL STABILIZATION IS ACHIEVED. OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE BARRIERS, AND OT E CONSTRUCTED AS A FIRST STEP IN ANY LAND DISTURBING ACTIVITY,' AND SHALL / REVISED: MAY 22,r 2000 8. - IN ATERING THE EFFLUENT WILL BE FILTERED ES-8. DURING DEW , BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE. REVISED: 3ULY 7, 2000 OR PUMPED INTO SEDIMENT BASINS OR SILT TRAPS. I LEGEND . C'KVJCI.I ItlV. 77d3V'3Y I zo > r ib, FF�,r '1;A3 7VI"Ill /Z If f Z /tsI I I I_1 / ,- / , ­/ " � / V-1 k, Vi Ire lit/ --BUFFER- lit S MAIt -20j' "j "/,/� % � V BETKEN STREAV MD A J LIMITS OF CLEARING 1116, 'J (g)- CE X f t, j Qcc f -0 J GRADI IN PRY NG y ErAl f 0//� Lz SF .............. 4:3, LIZ r 4 0 LIMITS 6F LE G PTUNUP ip -SF -n Pi Wv, L V 9�'A c \%x% A= 80 REM k W, V, \T TR-E-ES - �\ \ - , �\' tit I S-POtLS AREA' /701 STAEJ �N X 4%�6 ji X N SE-DIRENT–BBAS I NX 6\\ \1" Arl EXCAVA710a-- Suly S CXP L I'E 11MI A X11 20'X12' RIP–RAP FORE"' SEE DETAIL BELOW iff"111 If I REFER TO OUTLET CHANNEL DETAIL SHEET C-3 -:7- j OUTLET CHANNEL SEE DETAIL SH ET I I F I j NX '__��EM�ERGENCYFSP`ILLWA�Y dl_IIVII�S' OF r P14D z R I` fl/ If I OP x fl 61 LF-21 RCP INV.OUT=A \X P, SEE TSB SECTION 6w DETAIL, SHEET C-3, N" i�, f FOR TYPICAL SECTION 100, -------------------------------- -- 20'xl 2': RIP–RAP FOREBAY y SEE DETAIL BE-OW JUTE MESH 1-000- 1 "' - LINING �1 2'— 9 IS FOR ��99_f W05 D TP OF CLEARING b10TE: THIS PLAN CLEARING & GRUBBING ONLY. LIMI _S & GRA DING NO EARTHWORK IS PROPOSED WITH THIS PLAN.t TURES SHALL MEET STANDARDS OF THE SEDIMEN ALL EROSION CONTROL FEA I/W /"Jil VIRGINIA EROSION CONTROL AND SEDIMENT HANDBOOK, 3RD EDITION BASIN elf, 18" RIP–RAP 2-1 SLOPE INSTALL SAFETY FENCE WITH 'DANGER QUICKSAND" SIGNS SPACED AT 100 INIERVALS AROUND THE PERIMETER OF THE SEDIMENT BASIN. 1k:j CDO RIP—RAP FOREBAY DETAIL, C�R NO SCALE Ake: T "ZI W) 1;Z1 0 1w­ GLENN W. CU IS E 11,500,500 E 11,501,000 E 11,501,500 E 11,502,000 E 11,502,500 E 11,503,000 n CERTIFICATE No. 39 Pq wc, DESIGNED: CIVIS REVISIONS: SCALE: 1"= 100, ADRAWN: DAA STAFF 5/22/00 PER COUNTY COMMENTS de" As tes DEMAOLITION & EROSION CONTROL PLAN Blacksburg Richmond, Virginia CHECKED: GWC NORTH FORK RESEARCH PARK, TOWN CENTER EROSION & SEDIMENT CONTROL PLAN 7/7/00 PER COUNTY COMMENTS C-2 ALBEMARLE COUNTY, VIRGINIA ,"MEOW, Engineering Surveying Envirownental Services DATE:. 03/29/00 PLAN NO, T-99130-34 I 2' CMP PIPE i TACK WELD SUPPORT. BARS TO STEEL PLATES 12 I 1 M • M. 4 2 5 YEAR STORM E LEV• 464.00 KEY FI L TER FABRIC 1 1 2 � x 1 t „ x 3 t s 468.00 PROVIDE 6 COVER MlN. 1 ) ANGLE SUPPORT II L B AR .,--PRESSURE E RE LIE F HOLES /2 „ D IA. / RI SER W 12 465.0 0 C R ES T- I I ' I I ; I I I J .y ./ � 1 1 / r l ' i / I ! ♦ � / i // \\ \ l v \ a : D a \a . - : e / e r a \ \ \ / / \ \ i I I I ` I I f I •r''� A 3 / 0 / / ,✓ IS ER ' a O \ \ , cy 1 1 t7 ._ t17 0 C> 1 3 t ` \ \ \ / ' \ \ \ � / i 1 I ` 46 5 .00 2 ANTI V ORT E X DE VI C E 2 E M ERGENCY' -SPILLWAY t SEE DETAIL) CREST _ 4 63 0 8# \ A / 462.30- 3 0 „ DRY VOLU ME 462. 30 2 2 1 a 459,30- 2 / 0 .5 } SUPPORT BAR WET 459.30 1 8 6 REBAR MIN. _ 2 1 RCP @ 1. 64 % cfl 6 i L F RlPRAP MIN. LE EO T XTI 457. 60 - FILTER FABRIC iNV . _ 45 6.00 PLAN 456.0 0 CHANNEL DETAIL. WELDED 2 D 0 (MIN.) 54 TACKW ELD A L T I T DETAIL NO SCALE A R OUND NO SCA LE RISER ANCHOR 30 RISER T T OP OF BERM _ 465 O? 17 NO SCALE 3 EMERGENCY S PILLWAY 1. SET THE STAKES 2. EXCA V ATE A 4 'X 4 TR E N CH $H MIN. 463 .20 U PSL OPE ALONG THE LINE OF STAKES. SUPPORT FARS ATTACHE) 6 X 1 2 6 MAX SPACER BAR PROVIDE ADEQUATE (TYPICAL) 3 0 RISER 18 a C LASS 1 RIP RAPS UPP SUPPORT BAR c# 6 REBAR MIN. P OLY ETHYLENE G A P SPILLWAY I II I ; I , I I I I I I , r I u _ II I I 1 • ! I _ ! I t Y .._ i..,, ., ,I . . . iI. , . i : T ., n __- w I► I I I T _ I- _ -B ! t T .I I �. M .1 f. . . _ J - I I i- .I. -.! { •H- _-T r ,T i I .� -_ I - l I.I w TT .� ( _ �I I 1 iI . 7 _ ` }T° _ - - 1lI f i T \ , G I ll � _ TI , I , I- IA .4 � l I W �. I Tz 4 , - •T_ II _ II _ (1IC �( _ T- III l - _ I 1 �- f i _ I II I I - -T --i l•_ _ I.- I _ III I - I I T i _ _ I I I 1 Tf i J .- _ •_ 0 . . , _ I 1[� tf ! (t � 1 / 1 > � � • r .• A 7 n R .. r .. . = 2 ' d \ 7 B � 5 . . i N , O . . C ._• , r S1 . .0 _ A• . • L i O E FLOW too SECTION A A ISOMETRIC - s e , .• . . J . . 6 ` PERFORATED NOTES. .2 4 1. TOP IS 14 GAGE CORRUGATED METAL 0 R 1 /„ S T EEL PLATE. PRESSURE R ELIEF HOLES POLYETHYLENE .• . • , t w > Q . � •• p M _ _ . ti o , • C 4 2 AE r U a l NB 1 D RAINA C ZY MAY B E OMITTED , I F RU ATIONS AR LE FT F L 3. STAPLE FILTER MA TE RIAL 4. BA CKFILL AN D CO MPACT I 1 THE EXCAVATED SOIL. STORAC7E I S A TT A CHED. -SPILLWAY DEP TH 1 TO STAKES EXTEND 2 CYLINDER R IS 1 6 GAG E CORRUGATED UGATED METAL PI PE OR FABRICATED I C A ED F ROM STEEL PLATE. IT INTO TRENCH. 3 O RISER ELEV. 45 � .30 3. THE CYLINDER NDER MUST BE FIRMLY FASTENED TO TO P OF TH E RISER. 4. SUPPORT BARS ARE WELDED TO THE TOP OF T HE R I SER OR ATTACHED B Y STRAPS WET TO THE TOP OF THE RISER. FE NGO 5 7YL. E GO UP IN & TORAGE i P • . w . - , M / \ \ / \ \ \ / a . \ . / 1 8 1 C LAS S i R NORTEX DEVICE IPRAP ® TI PVC, SGH OUL E 40 5TUD i FOOT MINIMUM NO II P E EMERGENCY SPILLWAY DTI NO SCALE FLOW DETAIL NO S CAL E DRAINAGE SW A� N RECTS E10 w Ti SEDUM£ NT BASIN SHEET FL OW INSTAL LATION 7 O Mtd (PERSPECTIVE VI E W } E TI G 3" SM - 2A ASPHALT TOP C OUR SE A PAVEMENT FLOW A D RI P L E SL1E: an TM MIN. A EGATf e AS~ SIDE ELEVATION cvRa EDGE of v i 11NG GROUND POINTS SHOULD B E HIGHER THAN POINT Br SNOW FENCE MIN. DRA IN GE W AY INSTALLATION F RONT ELE VATION } 0 A o A ASPHALT P ANED W ASHiACK CONSTRUCTION OF A WITHOUT WIRE SUPPOR I I LT 1 t NO G A LE [a;"-, AYEEATT o STD. ESPEC VIRGINIA EROSION PIPE QUTE T FA T A� WtM o SEDIME NT CONTROL HANDBOOK 3 R D ED.) Wfll DEFINED (�lWN BO A RD FENCE PLAN VIEW CORD FENC E P O5t7nVE D ANAGS TO T 10 PLASTIC FENCE ii � PING oEvice MUST EXTEND EUl. WID TH COMPACTED CORRECT METHODS OF TREE FEN C I N G o = INGRES AND E�Es TO PLAN VIE W .: + i 18" L F1TR ,mac 12 MN. SECTON a -A 4'-6" MiN . 2 5 CONSTRUCTION SPECIFICATIONS NOTES: 1. L S THE LENGTH THE R PRAP APR�d 1. WHENE V ER F EA SIBLE THE DIKE S HOU LD BE BUILT BE FORE CO N ST R UCTION 2 c= 15 TIMES THE �ApkUM STONE DuMEiER BUT NOT LESS THAN IN�EBEG INS ON THE PROJECT. FL ECE4 Ti 3 . IN A WELL DEFI N ED tN JND THE APRON UP THE CHANNEL 9M 2 T HE D IK E S HOULD BE ADE Q UATELY CO MPACTED TO PREVENT FAILURE. TO AN IVAT{ON OF 6 INCHES ABOVE THE 1�MUA T AI W ATER DEPTH OR TO THE TOP OF THE BANK, IS LESS. - A 3. TEMPORARY OR PERMANEN T S EEDING AN D MULCH SHALL TO THE DIKE SECTS A �RR E T TRUNK ARMORING NG WITHIN 15 DAYS 0 F CONSTRUCTION. 4. A FILTER BLANKET OR FILTER FABRIC SHALL BE INSTAD BEiWE1A Poo THE � PRAP AND TH E SOIL FOUNDATION. N A E A t WATER t i i 15 E 1U 1MYN A i�M N a 5i Wit OF 3 � c 1.5 f 4. THE DIKE SHO U LD BE LOCATED T 0 MINIMIZE DAMAGE B Y CONSTRUCTION TRIA NGU LA R BOARD FENCE OPERATIONS AND TRAFFIC. r d A � 0 � E T NO SCALE TEMPORARY DIVERSION DIKE atd f S � NI , � �. STD . & SPEC. 3.1 8 VIRGINIA EROSION & I A ARMORING I 22 0 _GLENN on- ADAMD fmm 190 WS 7 S , I r� 0 ti T NO SCALE M C U Iti S S SEDIMENT CONTROL HANDBOOK, 3RD ED.) (STD. & SPEC. 3.09 OF VIRGINIA E ROSION & C CER TI FICAT E No . SEDIMENT CONTROL NAN D ®OOK 3RD ED } P E R STD. & SPEC. 3.38 OF VIR GIN I A ERO SI ON & ) �T T 4� 8039 SEDIMENT CONTROL - HANDBOOK 3RD ED NO SC AL E (STD. & SPEC . 3.02 � VIRGINIA EROSION SEDIM ENT CONTROL HANDBOOK, 3RD ED.) i+w01e \ 990 A \Gh0 \'90 ,3� S {-a G fLU�, , MCI zzik Draj1pher Aden DES IGNED. CMS R EVI SIO NS. S CA LE. - AS SHOWN sl BRAWN. DAA STAFF 5/22/00 DETAILS PER COU NTY COMMENTS Blacksburg R1Ghmo 1d V1r 111x CH ECKED, G we NORTH FORK RESEARCH PAR K TOWN GENTLE R EROSION & SEDIMENT CONTROL LAN 7/7/00 PE R COUNTY COMMENTS \ / !, A LB E ARLE COUNTY VIRGINIA E n Engineering uomental S evices DA TE ' PLAN O • T-9,9130 e 34