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Home My WebLink AboutWPO201500019 Plan - Stormwater 2015-05-223 v 0 a E 0 U i N 0 LO LO / 0 a- 0 U J U / 0 L6 / z w 0 / o, 3 0 E a v Q) a Q) 0 0 0 01 0 Ld Ld U i N 0 LO LO / 0 N / 0- WE TSEL PROPERTY DISPOS�I � A RE�I PLAN FOR FIELDER 'S CHOICE LIVTERPRISES, INC. APPLICANT /DEVELOPER: FIELDER'S CHOICE ENTERPRISES, INC. 1020 LINDEN AVENUE CHARLOTTESVILLE, VA 22902 PREPARED BY: RACEY ENGINEERING, PLLC 312 WEST MAIN STREET, PO BOX 387 LURAY, VA 22835 PHONE: (540) 743 -9227 OWNER & ADDRESS: THOMAS D. WETSEL ET. AL 878 RIO ROAD EAST CHARLOTTESVILLE, VA 22901 T1 Cl C2 C3 C4 C5 C6 C7 C8 C9 PROPOSED USE: SHEET INDEX TITLE SHEET EXISTING FEATURES GRADING PLAN & PROFILE VIEW ESC NARRATIVE ESC PLAN PH I ESC PLAN PH II PRE -DEV DRAINAGE MAPS POST -DEV DRAINAGE MAPS STORMWATER COMPUTATIONS ESC DETAILS VDOT G70 (ROUTE 29) - PROJECT (NFO) 0029-104-248, C501 -CITY OF CHARLOTTESVILLE THE PROPOSED SITE INCLUDES THE GRADING OF AN APPROXIMATELY 20,100 CUBIC YARD SOIL DISPOSAL AREA. THE TOTAL AREA OF THE PROPERTY IS 25.73 ACRES AND THE LIMITS OF DISTURBANCE IS 2.95 ACRES. RESPONSIBLE LAND DIS TURBFR NAME: VAtWAKk S .. CERTIFICA TION NO.: U -� DA TE: 101 «d SOL !;� THE RESPONSIBLE LAND DISTURBER IS THE PARTY RESPONSIBLE FOR CARRYING OUT THE LAND DISTURBING ACTIVITY AS SET FORTH IN THE PLANS 911 RIO MAGISTERIAL DISTRICT ALBEMARLE COUNTY TAX MAP #06100- 00- 00 -167C0 ZONED: R4 RESIDENT /AL VICINITY MAP SCALE 1 " - 2000' GENERAL NOTES: "NORMAL' PROJECT PROCEDURES 1. ANY DISCREPANCIES FOUND BETWEEN THE DRAWINGS AND SPECIFICATIONS, AND SITE CONDITIONS OR ANY INCONSISTENCIES OR AMBIGUITIES IN DRAWINGS OR SPECIFICATIONS SHALL BE IMMEDIATELY REPORTED TO THE ENGINEER IN WRITING WHO SHALL PROMPTLY CORRECT SUCH INCONSISTENCIES OR AMBIGUITIES IN WRITING. WORK DONE BY THE CONTRACTOR AFTER HIS DISCOVERY OF SUCH DISCREPANCIES, INCONSISTENCIES, OR AMBIGUITIES SHALL BE DONE AT THE CONTRACTOR'S RISK. 2. THE LOCATION OF EXISTING UTILITIES AS SHOWN IS APPROXIMATE ONLY. THE CONTRACTOR IS RESPONSIBLE FOR LOCATING ALL PUBLIC OR PRIVATE UTILITIES WHICH LIE IN OR ADJACENT TO THE CONSTRUCTION SITE. THE CONTRACTOR SHALL BE RESPONSIBLE FOR REPAIRING, AT HIS EXPENSE, ALL EXISTING UTILITIES DAMAGED DURING CONSTRUCTION. 3. FORTY - EIGHT (48) HOURS PRIOR TO ANY EXCAVATION CALL MISS UTILITY IN ACCORDANCE WITH ALL LOCAL AND REGIONAL CODES. 4. ALL CONSTRUCTION IS TO BE IN ACCORDANCE WITH LOCAL AUTHORITY STANDARDS AND SPECIFICATIONS. 5. ALL MATERIALS USED FOR FILL OR BACK -FILL SHALL BE FREE OF WOOD, ROOTS, OR ANY OTHER NON- COMPACTIBLE SOIL TYPE MATERIAL. UNSATISFACTORY MATERIALS ALSO INCLUDE MAN -MADE FILLS AND REFUSE DEBRIS DERIVED FROM ANY SOURCE. 6. SATISFACTORY MATERIAL FOR USE AS FILL FOR THIS PROJECT INCLUDE CLASSIFIED IN ASTM 0-2487 AS GW, GP, GM, FC, SW, SP, SM, SC, ML, AND CL GROUPS. THE MOISTURE CONTENT SHALL BE CONTROLLED WITHIN PLUS OR MINUS 2 PERCENTAGE POINTS OF OPTIMUM TO FACILITATE COMPACTION. GENERALLY, UNSATISFACTORY MATERIALS INCLUDE MATERIALS CLASSIFIED IN ASTM D -2487 AS PT, CH, MH, OL, OH, AND ANY SOIL TOO WET TO FACILITATE COMPACTION. CH AND MH SOILS MAY BE USED SUBJECT TO APPROVAL BY A PROFESSIONAL ENGINEER. 7. MATERIALS USED TO CONSTRUCT EMBANKMENTS FOR ANY PURPOSE, BACK -FILL AROUND DRAINAGE STRUCTURES OR IN UTILITY TRENCHES OR ANY OTHER DEPRESSION REQUIRING FILL OR BACK -FILL SHALL BE COMPACTED TO 95% OF MAXIMUM DENSITY AS DETERMINED BY THE STANDARD PROCTOR TEST AS SET OUT IN ASTM STANDARD D -698. THE CONTRACTOR SHALL, PRIOR TO ANY OPERATIONS INVOLVING FILLING OR BACKFILLING, SUBMIT THE RESULTS OF THE PROCTOR TEST TOGETHER WITH A CERTIFICATION THAT THE SOIL TESTED IS REPRESENTATIVE OF THE MATERIALS TO BE USED ON THE PROJECT. TESTS SHALL BE CERTIFIED BY A LICENSED PROFESSIONAL ENGINEER. 83. EMBANKMENT FILL AND TRENCH BACK -FILL SHALL BE PLACED IN LIFTS AT A MAXIMUM UNCOMPACTED DEPTH OF 8- INCHES AND 6- INCHES, RESPECTIVELY. DENSITY TESTS SHALL BE CONDUCTED AT THE FOLLOWING MINIMUM FREQUENCIES: A. EMBANKMENTS FOR ROADS, STREETS, DAMS, ETC: ONE TEST PER LIFT PER 10,000 SQUARE FEET. B. BACK -FILL AROUND STRUCTURES AND IN TRENCHES: ONE TEST PER LIFT PER 500 LINEAL FEET. 9. A PRECONSTRUCTION CONFERENCE SHALL BE HELD PRIOR TO THE START OF CONSTRUCTION. THE CONTRACTOR SHALL ARRANGE THE MEETING WITH THE OWNER & APPROPRIATE COUNTY OFFICIALS. 10. THE CONTRACTOR SHALL PROVIDE THE COUNTY OF ALBEMARLE A MINIMUM OF 96 HOURS NOTIFICATION PRIOR TO ANY INTERRUPTION OF WATER SERVICES, SEWER SERVICES, STREET TRAFFIC, OR STORM WATER. LEGEND PROPERTY LINE LIMITS OF SURVEY CONTOUR (1' INTERVAL) OVERHEAD ELECTRIC LINE CENTER OF ROAD LIMITS OF DISTURBANCE FENCE GRAVEL AREA TREE LINE IRON PIN /ROD SPOT ELEVATION TELEPHONE PEDESTAL UTILITY POLE EXISTING PROPOSED 500 LOD +500 ALBEMARLE COUNTY EROSION AND SEDIMENT CONTROL GENERAL CONSTRUCTION NOTES 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE - CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625 -02 -00 EROSION AND SEDIMENT CONTROL REGULATIONS. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF - PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS. 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13 -301 OF THE CODE OF ALBEMARLE. 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:OOAM TO 9:OOPM. 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAN MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE 0 SLIDES, SINKING, OR COLLAPSE. 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS /ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS /100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS /1000SF, INCORPORATED INTO THE TOP 4 -6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000LBS /ACRE AND CONSIST OF A 10 -20 -10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 18OLBS /ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0 -5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 8OLBS /100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED IMMEDIATELY. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. 00 t. .. ., 0� M , D � d N r- \ z pq in 0 PROPOSED 500 LOD +500 ALBEMARLE COUNTY EROSION AND SEDIMENT CONTROL GENERAL CONSTRUCTION NOTES 1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE - CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. 2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625 -02 -00 EROSION AND SEDIMENT CONTROL REGULATIONS. 3. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING. 4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. 5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. 6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY. 7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED. 8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. 9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF - PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. 10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA. 11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS. 12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28. 13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13 -301 OF THE CODE OF ALBEMARLE. 14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:OOAM TO 9:OOPM. 15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAN MAINTAINS LATERAL SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE 0 SLIDES, SINKING, OR COLLAPSE. 16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY. 17. TEMPORARY STABILIZATION SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75 LBS /ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50/50 MIX OF ANNUAL RYEGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80LBS /100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 18. PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS /1000SF, INCORPORATED INTO THE TOP 4 -6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000LBS /ACRE AND CONSIST OF A 10 -20 -10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 18OLBS /ACRE AND CONSIST OF 95% KENTUCKY 31 OR TALL FESCUE AND 0 -5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 8OLBS /100SF. ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR. 19. MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIR IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50% OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE AND DIVERSION DYKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED IMMEDIATELY. 20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR. OF U XTT Un 0 AT TOrr YNT '=v Lic. No. 053674 w 00 0� M , D � d N r- \ z pq in 0 W � N wJ z�N za H Ham n V z 0 i(=1 Q Q M � a a � � m c� J Q � � N of � m V) m � V) W_ \ V) 2 O 41 � � E : V no' U a �7_ D z 0 0 6 Z - N OF U XTT Un 0 AT TOrr YNT '=v Lic. No. 053674 w Z a_ Q W ry Q n D W IZ iy a_ J Ld I— Ld W W rZ V 1 i� a 0 w Y U w U 0 Q Z Q 0 Q 0 w z V) w 0 L0 0 N U ul Z \ (n � W 07 0 a- z 0 W 0O z U W W J LJ U_ Q O :--> = W U m J V) Q W 0 J W N 0 10 L0 0 d U Q Q' T1 00 0� M , D � 0 z pq in 0 W � N wJ z�N za H Ham n V z 0 i(=1 W M � Z a_ Q W ry Q n D W IZ iy a_ J Ld I— Ld W W rZ V 1 i� a 0 w Y U w U 0 Q Z Q 0 Q 0 w z V) w 0 L0 0 N U ul Z \ (n � W 07 0 a- z 0 W 0O z U W W J LJ U_ Q O :--> = W U m J V) Q W 0 J W N 0 10 L0 0 d U Q Q' T1 U 3 v ai O a E 0 U I N O LO W F- O a 0 U _J U U 3 L6 z W 0 / 3 O E Q) v CL a Q m v 0 0 0 cr v w w U w A N O LO LO O N '97 SURVEY INFORMATION AND REFERENCES: • ALL INFORMATION SHOWN ON THIS SUBMITTAL IS OF EXISTING PHYSICAL FEATURES THAT WERE FIELD LOCATED BY RACEY ENGINEERING, PLLC ON OR BEFORE 5- 04 -15. • ALL SHOWN COORDINATES & ELEVATIONS HAVE BEEN COLLECTED BY CONVENTIONAL TOTAL STATION & RTK METHODS FROM RACEY ENGINEERING ESTABLISHED SURVEY CONTROL. • THE PROJECT COORDINATE SYSTEM AND ELEVATIONS ARE ASSUMED. • ADAM GRABFELDER, EIT WAS ON —SITE & VERIFIED EXISTING GRADES ON 5/01/15. �0 �AZ,T H OF U f TYLER S. AUSTIN J' 0 Lic. No. 053674 5/15/15 acv``'. �' S�JONA1, E1� Wz w U UJ z z .w 00 h H M 7 n m oenL � N �yw y N N Fad N M �y Qz J a U z Ld LLI d N \ Li V) < �Lf)� a_ CL Q W ry z(f) LL_ w 0 Q Q 0 W U Ld z O = a _ U 0 ry a_ V J V) V) V) � J Ld CL 0 J F- Q W w lz W mU Q Q ° Q m N m D V) \ V w U- w E V) 0 U Q v) � Z Z D O O U U O Z �- N �AZ,T H OF U f TYLER S. AUSTIN J' 0 Lic. No. 053674 5/15/15 acv``'. �' S�JONA1, E1� Wz w U UJ z z .w 00 h H M 7 n m oenL � N �yw y N N Fad N M �y Qz J a U z Ld LLI Q n Li V) < a_ CL Q W ry z(f) LL_ w 0 0 W U Ld z O = a _ U 0 ry a_ V J V) V) V) � J Ld /\ x 0 J I W w lz W z D O Ld J Ld m J Q Q 0 w Y U W U C7 Q z Q 7 Q IJ_I Z 0 V) Ld 0 N' O N \ W Q O J N O L0 L O ry n W U Q ry rn Q) :L1 E 0 0 LO LO V) c) Q- :a 0 t6 z CD 0 (6 1-1 O L2 O LL- LO L2 0 PROJECT QUANTITIES VOLUME OF FILL - 20,100 CUBIC YARDS DISTURBED AREA - 2.95 ACRES MAXIMUM SLOPES - 3:1 PROJECT SITE NOTES: 1. TEMPORARY SOIL STOCKPILES SHOULD BE SEEDED WITHIN SEVEN (7) DAYS. 2. ALL TEMPORARY DIVERSION DIKES SHALL BE MAINTAINED THROUGHOUT THE LIFE OF THE PROJECT. 3 500. F-9 d O i•t 480. yl , z ALL FINAL GRADE ELEVATION CONTOUR LINES ARE \- — -, , J f 'i' il 67 Oi PARCEL ,"I,Dt 10k I 6q, b0 mk WHITED FAMILY 'LL C j q6 001 ACRE'S PS F 1 1 E �PG 380 X, 00� A ii 0 PARCEL ID: 06100' 00-00— 16700 e WETSEL, TRQMAS D LIFE 'ESTATE \Aix 1- 584 ACRES ad Pa x DB 1 688 PG 564 ST 0 q;, 0?0 lF 6 pp as i,e > ON, 0`\ < "A % 0 . ...... rA� 0 xS If < C STRUCTION SM-24, ASPHALT TO,71 v .:fit;.. RSE FEo:�MNG 0 0. PARCEL ID: 06100-00-00-167C0 16 0 ", , I , s WETSEL, THOMAS D & CLARENCE H. WETSEL & MIN, 21A AGGR'--'GAf'-' BASL I , N, N ANN W P1 IFF&AANI k hAAPY W Pnnn N, I - STATION SCALE: H: 1" = 50' V: I " = 5' STATION SITE GRADING CROSS SECTION PROAL T TONE 70* MIN, Lou ASPHALT PAVE (D Lou 'S CK WASHRA,,, LOO PNVf VC NT-' 2% 0 2% 2% 'P, 51 GI *,YUY EXIENID FUL- k, H, L -PCS,!T1V1 DRAINA, STA-�- OF I (D -1'0 SEDI�VENT NORESS AND EGRESS TRA��PING -R 'T I OPL A,10114 E�AN x 12' M, I N 'CIS. `JINE DRAINAGL ITCH SEDIN1ENT 27, -V 0.0 FILTER Q Hl —A SECTION A 0 A nifiriiwjm water tap of I inch must be installed vrith a mirdinum I inch ballcock shutoff vaiv, e smpphilr_g a wash 11OSe N1,411 3 (hallIeter of L5 inches for adequate < constant pressure. N'Vassli watel, must be carried away from the entrance t I > o al LIJ approved setthirg area to remove sedfinent, All secli neat: shall be prevented filoul enter iig stomi (trains, ditches or watercourses. PAVED WASH RACK 0.0 NO SCALE NORTH / . ............ 011,14 0.0 fi 40 0 40 80 SCALE OF FEET 0�� v�XjH OF llJ TYLER S. AUSTIN Lie. No. 053674 5/15/15 W, 10NAL LO U) 00 \0 41 0 z PQ Ln Lij 00 Lr) LLJ (jz (D Hai z Lu cn V) M 0 M V) m V) 3:: F- V) uj V) C) Q U) � ZZ Z) 0 0 0 0�� v�XjH OF llJ TYLER S. AUSTIN Lie. No. 053674 5/15/15 W, 10NAL N W • I Ld V) Ld C) 71 Cf) 0 LLJ V) rz n ry Ld C�d LLJ Ld C) —0 C) V) LLJ C) Ld (-D j �7 LL- C) CD m Ld —i Ld m V) LLI Y C) Ld r U z Ld Z 0 (f) LLJ 0 N, 0 04 LO Ld 0 C14 0 L0 L0 O Of a_ L C) x 00 00 \0 0 z PQ Ln Lij 00 LLJ (jz (D Hai z Lu N W • I Ld V) Ld C) 71 Cf) 0 LLJ V) rz n ry Ld C�d LLJ Ld C) —0 C) V) LLJ C) Ld (-D j �7 LL- C) CD m Ld —i Ld m V) LLI Y C) Ld r U z Ld Z 0 (f) LLJ 0 N, 0 04 LO Ld 0 C14 0 L0 L0 O Of a_ L C) x o, 3 0 CL E 0 C) 1 N 0 L0 L0 Ld i 0 o_ 0 U i U i 0 ui i z 0 w 0 rn 3 0 E CL 0 Q 3 v 0 0 w° w 1 N 0 LO LO i 0 N i THE ENGINEER IS PROVIDING NOTICE TO THE CLIENT OF THE FOLLOWING SPECIFIC TERMS: THE PLAN PREPARATIONS HAVE BEEN MADE SEED MIX ON HIGH — MAINTENANCE LAWN SHALL CONSIST OF THE FOLLOWING SEED MIX AT 200 -250 LBS. PER ACRE: WITH ALL REASONABLE AND PROFESSIONAL CARE GIVEN TO DESIGN DETAILS AND COORDINATION. HOWEVER, UNINTENTIONAL ERRORS, OR KENTUCKY 31 FESCUE OR TURF —TYPE TALL FESCUE 100% OMISSIONS, ARE A NORMAL PART OF ANY WELL PREPARED ENGINEERING DESIGN /CONSTRUCTION DOCUMENTS. THIS PLAN *USE SEASONAL NURSE CROP WITH SEEDING DATES AS STATED BELOW: REPRESENTATION IS BASED ON THE CLIENT'S UNDERSTANDING AND ACCEPTANCE OF THIS PREMISE, AND THAT THE CONSTRUCTION FEB 16 — APRIL 30 ANNUAL RYE CONTRACT BUDGET WILL CONTAIN A REASONABLE CONTINGENCY COST TO COVER THESE TYPES OF NORMAL DESIGN OR COORDINATION MAY 1 — AUG 15 FOXTAIL MILLET ERRORS OR OMISSIONS. AUG 16 — OCT 31 ANNUAL RYE ACRE NOV 1 — FEB 15 WINTER RYE THE STANDARDS OF CARE FOR ALL PROFESSIONAL ENGINEERING AND RELATED SERVICES PERFORMED OR FURNISHED BY ENGINEER ARE OF THE CARE AND SKILL ORDINARILY USED BY MEMBERS OF THE SUBJECT PROFESSION PRACTICING UNDER SIMILAR CIRCUMSTANCES AT THE SAME TIME AND IN THE SAME LOCALITY. ENGINEER MAKES NO WARRANTIES, EXPRESS OR IMPLIED, IN CONNECTION WITH ENGINEER'S SERVICES. ENGINEER AND ITS CONSULTANTS MAY USE OR RELY UPON THE DESIGN SERVICES OF OTHERS, INCLUDING, BUT NOT LIMITED TO, CONTRACTOR'S, MANUFACTURERS, AND SUPPLIERS. EROSION AND SEDIMENT CONTROL NARRATIVE PROJECT DESCRIPTION: THE PROJECT IS LOCATED AT 782 RIO ROAD EAST, ALBEMARLE, VIRGINIA [TAX MAP NUMBER TAX MAP #06100- 00- 00- 167CO]. THE PROJECT CONSISTS OF DEPOSITING OFF —SITE MATERIAL FROM VDOT G70 [PROJECT (NFO) 0029 -104 -248, C501 —CITY OF CHARLOTTESVILLE] ON THIS SITE. AFTER MATERIAL IS DEPOSITED, GRADING AND SEEDING SHALL FOLLOW. THE EXPECTED LIMITS OF DISTURBANCE AS OUTLINED ON THE SITE PLAN IS 2.95 ACRES. THE PROJECT WILL HAVE A 0% INCREASE IN IMPERVIOUS AREA IN THE POST — DEVELOPMENT CONDITION, AND THE ULTIMATE DRAINAGE PATTERNS ARE TO REMAIN UNCHANGED. THE PROJECT IS EXPECTED TO BEGIN IN THE SPRING /SUMMER OF 2015 AND WILL BE STABILIZED WHEN CONSTRUCTION IS COMPLETE. EXISTING SITE CONDITIONS: THE AREA IS CURRENTLY A LARGE, GRASS FIELD WHICH SLOPES TO THE SOUTH & WEST. THE TOTAL AREA OF THE PROPERTY IS 25.73 ACRES AND CONSTRUCTION IS NOT EXPECTED TO IMPACT ADJACENT PROPERTIES. DRAINAGE CURRENTLY FLOWS TO A DITCH IN THE MIDDLE OF THE PROJECT AREA. THE DRAINAGE THEN FLOWS DOWN THE DITCH AND EVENTUALLY INTO MEADOW CREEK. MEADOW CREEK EVENTUALLY FLOWS INTO THE RIVANNA RIVER (HUC: 020802040401, RIVANNA RIVER — MEADOW CREEK). ADJACENT AREA: THE IMMEDIATE ADJACENT PROPERTIES LOCATED ON ALL SIDES OF THE PROPERTY ARE ZONED RESIDENTIAL (R4). ADJACENT PROPERTIES AND ROADWAYS ARE TO BE KEPT IN A MUD — AND — DUST —FREE CONDITION DURING ALL PHASES OF CONSTRUCTION. OFF —SITE AREAS: NO OFF —SITE CONSTRUCTION IS KNOWN, BUT IF ADDITIONAL BORROW FILL OR ANOTHER WASTE PIT IS UTILIZED OFF —SITE, THE AREA SHALL BE CONTROLLED UNDER A SEPARATE OR EXISTING LAND DISTURBING PERMIT. SOILS: THE SOILS MAP AND SOILS DESCRIPTIONS HAVE BEEN INCLUDED ON THIS SHEET. THE SOIL DATA WAS OBTAINED FROM THE USDA (WEB) SOIL SURVEY. Note: K— factor is a factor that indicates susceptibility of soil to sheet and rill erosion by water with values ranging from 0.02 to 0.69 (the higher the value the more susceptible the soil is to erosion). Hydrologic Soil Groups indicate runoff potential of the soil with Group A having high infiltration, Group B having Moderate Infiltration, Group C having slow infiltration, and Group D having very slow infiltration. The pH value is used to approximate the required time rate to be applied to the soil when seeding. EROSION AND SEDIMENT CONTROL MEASURES: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE CONSTRUCTED AND MAINTAINED ACCORDING TO THE MINIMUM STANDARDS AND SPECIFICATIONS OF THE LATEST EDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. THIS PLAN DEPICTS ADEQUATE PERIMETER CONTROLS WITH THE UNDERSTANDING THAT FIELD CONDITIONS MAY REQUIRE ADDITIONAL CONTROLS OR MODIFICATIONS TO MEASURES AS SPECIFIED HEREIN. THE ENGINEER, OR LOCAL EROSION AND SEDIMENT CONTROL ADMINISTRATOR, RESERVES THE RIGHT TO PRESCRIBE ADDITIONAL MEASURES DURING CONSTRUCTION. STRUCTURAL MEASURES: TEMPORARY CONSTRUCTION ENTRANCE (3.02) SHALL BE INSTALLED AS SHOWN ON THE PLANS TO AID IN PREVENTING MUD AND SEDIMENT FROM BEING TRACKED ONTO THE STATE HIGHWAY. EXTRA PRECAUTIONS MAY BE REQUIRED BY THE CONTRACTOR TO ENSURE THAT NO MUD IS BEING TRACKED ONTO THE HIGHWAY BY CONSTRUCTION VEHICLES. RIGHT —OF —WAY DIVERSION (3.11) SHALL BE INSTALLED AS SHOWN ON THE PLANS WHEN THE CONSTRUCTION ENTRANCE IS INSTALLED. IT SHOULD SHORTEN THE FLOW LENGTH WITHIN A SLOPING RIGHT —OF —WAY, THEREBY REDUCING THE EROSION POTENTIAL BY DIVERTING STORM RUNOFF TO A STABILIZED OUTLET. SILT FENCE (3.05) SHALL BE INSTALLED AS SHOWN ON THE PLANS TO FILTER SEDIMENT LADEN RUNOFF FROM DISTURBED AREAS BEFORE IT LEAVES THE SITE. TEMPORARY SEDIMENT TRAP (3.13) SHALL BE INSTALLED AS SHOWN ON THE SITE PLAN AND MUST BE CONSTRUCTED TO AT LEAST THE MINIMUM SIZE REQUIREMENTS PROVIDED. THE SEDIMENT TRAP WILL SERVE AS THE PRIMARY (EROSION AND SEDIMENT CONTROL FOR THE AREA. ONCE THE DESIRED GRADE IS REACHED IN THE FILLING OPERATION, ALL DISTURBED AREAS ARE TO BE PERMANENTLY SEEDED. ONCE STABILIZED, THE SEDIMENT TRAP MAY BE FILLED IN. TEMPORARY ROCK CHECK DAMS (3.20) SHALL BE INSTALLED ALONG THE DITCHLINES AND DIVERSION DIKES AS SHOWN ON THE PLAN. THEY SHOULD BE REMOVED UPON COMPLETION OF CONSTRUCTION. TEMPORARY DIVERSION DIKE (3.09) SHALL BE INSTALLED AS INDICATED ON THE SITE PLAN TO DIVERT SEDIMENT LADEN RUNOFF INTO THE PROPOSED TEMPORARY SEDIMENT TRAP. TEMPORARY DIVERSION DIKES MUST BE MAINTAINED THROUGHOUT THE LIFE OF THE PROJECT. DUST CONTROL (3.39) SHALL BE ADHERED TO THROUGHOUT THE LIFE OF THE PROJECT TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOILS SURFACES AND TO REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. VEGETATIVE MEASURES: PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN (7) DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE [FIVE (5) DAYS FOR CUT OR FILL SLOPES]. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN (7) DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT FOR LONGER THAN FOURTEEN (14) DAYS. PERMANENT SOIL STABILIZATION SHALL BE APPLIED TO ALL AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN SIX (6) MONTHS. TOPSOIL THAT HAS BEEN STOCKPILED SHALL BE SURROUNDED WITH SILT FENCE ON THE DOWNSTREAM SIDE AND PROTECTED BY MULCH AND /OR TEMPORARY VEGETATION IMMEDIATELY AFTER GRADING. TOPSOIL SHALL NOT BE STOCKPILED IN DRAINWAYS. MAINTENANCE: ALL CONTROL MEASURES SHALL BE INSPECTED DAILY BY THE SITE SUPERINTENDENT OR HIS (REPRESENTATIVE AND WITHIN 24 HOURS AFTER ANY STORM EVENT GREATER THAN 0.5 INCHES OF RAIN PER 24 HOUR PERIOD. IT IS RECOMMENDED THAT THE CONTRACTOR UTILIZE INSPECTION REPORTS AND KEEP QUALITY RECORDS OF ALL MAINTENANCE. ANY DAMAGED STRUCTURAL MEASURES ARE TO BE REPAIRED BY THE END OF THE DAY. SEEDED AREAS SHALL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND OF GRASS IS MAINTAINED. ALL AREAS SHALL BE FERTILIZED AND RE— SEEDED AS NEEDED UNTIL GRASS IS ESTABLISHED. TEMPORARY SILT FENCE (AND ALL PERIMETER CONTROL MEASURES) SHALL BE CHECKED REGULARLY FOR SEDIMENT BUILD —UP. IF THE IS CLOGGED BY SEDIMENT THE HEIGHT OF THE INSTALLATION IT SHALL B REMOVED AND TEMPORARY SILT FENCE /i L E CLEANED OR REPLACED IMMEDIATELY. THE CONTRACTOR IS RESPONSIBLE FOR KEEPING EXISTING PUBLIC ROADS IN A CLEAN, DUST, AND MUD FREE CONDITION AT ALL TIMES. PERMANENT STABILIZATION: ALL AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH PERMANENT SEEDING IMMEDIATELY FOLLOWING FINAL GRADING. SEEDING SHALL BE DONE ACCORDING TO SPECIFICATION NO. 3.32 OF THE VETCH. IN LIEU OF TESTING THE TOPSOIL TO DETERMINE IF AND WHAT RATE TO APPLY SOIL SUPPLEMENTS, THE CONTRACTOR CAN PROVIDE THE FOLLOWING MINIMUM SPECIFICATIONS: TOPSOIL SHALL BE SPREAD AT A MINIMUM DEPTH OF 4" UNLESS OTHERWISE SPECIFIED IN ANY AREA WHERE THE EXISTING TOPSOIL HAS BEEN STRIPPED DURING CONSTRUCTION. PULVERIZED AGRICULTURE LIMESTONE SHALL BE INCORPORATED INTO THE SOIL AT A RATE OF 92 LBS PER 1000 SF (2 TONS PER ACRE). -100% IMPROVED PERENNIAL RYEGRASS 0 -5% FERTILIZE WITH 10 -20 -10 AT A RATE OF 23 LBS PER 1000 SF (1000 LBS PER ACRE) SEED MIX ON SLOPES STEEPER THAN 3:1 SHALL CONSIST OF THE FOLLOWING SEED MIX APPLIED AT THE FOLLOWING RATES: KENTUCKY 31 FESCUE 108 LBS PER ACRE RED TOP GRASS 2 LBS PER ACRE CROWN VETCH 20 LBS PER ACRE *SEASONAL NURSE CROP 20 LBS PER ACRE SEED MIX ON MINIMUM CARE LAWN OR PASTURE SHALL CONSIST OF THE FOLLOWING SEED MIX AT 200 LBS PER ACRE: KENTUCKY 31 FESCUE 95 -100% IMPROVED PERENNIAL RYEGRASS 0 -5% (6) KENTUCKY BLUEGRASS 0 -5% *USE SEASONAL NURSE CROP WITH SEEDING DATES AS STATED BELOW: MARCH 1 — MAY 15ANNUAL RYE Z �^ MAY 16 — AUG 15 FOXTAIL MILLET AUG 16 — OCT 31 ANNUAL RYE NOV 1 — FEB 29 WINTER RYE STRAW MULCH SHALL BE APPLIED TO ALL SEEDED AREAS AT THE RATE OF 4000 LBS /ACRE AND ANCHORED WITH CUTBACK, OR EMULSIFIED ASPHALT APPLIED AT A RATE OF 200 GALLONS PER ACRE. STORMWATER MANAGEMENT: WATER QUANTITY WILL BE HANDLED BY A SEDIMENT TRAP AT 'THE LOW END OF THE SITE DURING CONSTRUCTION. THE ULTIMATE DRAINAGE AREAS WILL NOT BE CHANGED IN THE POST— DEVELOPMENT CONDITION. THERE IS A DECREASE IN FLOW RATE AND AN INCREASE IN TIME OF CONCENTRATION IN THE POST— DEVELOPMENT CONDITION (SEE SHEET CIO). ADDITIONALLY, THE OUTFALL CHANNEL OF THE SITE HAS BEEN ANALYZED AND IS ADEQUATE TO HANDLE THE 10 —YEAR STORM EVENT AT NON— ERROSIVE VELOCITIES (SEE SHEET C12). THE ENERGY BALANCE HAS ALSO BEEN COMPUTED AND IS SATISFIED (SEE SHEET CIO) THEREFORE MS -19 HAS BEEN SATISFIED. MANAGEMENT STRATEGIES: SEQUENCE OF CONSTRUCTION: 1. PERIMETER EROSION AND SEDIMENT CONTROLS SHALL BE INSTALLED AS A FIRST STEP IN THE LAND DISTURBANCE ACTIVITY. 2. CLEAR AND GRUB. STRIP AND STOCKPILE TOPSOIL. 3. BEGIN CONSTRUCTION AND GRADING OPERATIONS. ONCE FINAL DESIGN GRADE IS REACHED, SEED AND MULCH ENTIRE DISTURBED AREAS. 4. ONCE ENTIRE AREA IS STABILIZED, REMOVE EROSION AND SEDIMENT CONTROLS. CONSTRUCTION SHALL BE SEQUENCED SUCH THAT GRADING OPERATIONS WILL BEGIN AND END AS QUICKLY AS POSSIBLE. THE SITE SUPERINTENDENT AND THE RESPONSIBLE LAND DISTURBER SHALL BE RESPONSIBLE FOR THE INSTALLATION AND MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL MEASURES. MAINTENANCE OF THESE MEASURES THROUGHOUT THE PROJECT IS CRITICAL TO THE EFFECTIVENESS OF THE PROGRAM. DEVICES SPECIFIED IN THIS PLAN ARE CONSIDERED MINIMUM EROSION AND SEDIMENT CONTROLS. ADDITIONAL CONTROL MEASURES MAY BE NECESSARY DUE TO CONTRACTOR PHASING OR OTHER UNFORESEEN CONDITIONS. IT IS THE CONTRACTOR'S RESPONSIBILITY TO PROVIDE ADDITIONAL MEASURES TO THOSE SHOWN, AS NEEDED, IN ORDER TO CONTROL THE EROSION ON THE SITE. ALL MEASURES SHALL BE INSTALLED ACCORDING TO THE STANDARDS AND SPECIFICATION OF THE LATEST EDITION OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. ALL APPLICABLE EROSION AND SEDIMENT CONTROLS SHALL BE ADHERED TO THROUGHOUT THE LIFE OF THE PROJECT. GENERAL EROSION AND SEDIMENT CONTROL NOTES ES -1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR 625 -02 -00 EROSION AND SEDIMENT CONTROL REGULATIONS (4VAC50 -30). ES -2: THE PLAN— APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE — CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION. THE NAME OF THE RESPONSIBLE LAND DISTURBER MUST BE PROVIDED TO THE PLAN— APPROVING AUTHORITY PRIOR TO ACTUAL ENGAGEMENT IN THE LAND— DISTURBING ACTIVITY SHOWN ON THE APPROVED PLAN. IF THE NAME IS NOT PROVIDED PRIOR TO ENGAGING IN THE LAND— DISTURBING ACTIVITY, THE PLAN'S APPROVAL WIILL BE REVOKED. ES -3: ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS SOON AS THE FIRST STEP IN CLEARING. ES -4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES. ES -5: PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT LIMITED TO OFF SITE BORROW OR WASTED AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY. ES -6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE' PLAN APPROVING AUTHORITY. ES -7: ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED, AFTER WHICH, UPON APPROVAL OF THE PLAN— APPROVING AUTHORITY, THE CONTROLS SHALL BE REMOVED. TRAMPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE REMOVAL OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. ES -8: DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE. ES -9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES AT LEAST EVERY 2 WEEKS AND IMMEDIATELY AFTER EACH RUNOFF — PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY. ES -10: THE CONTRACTOR IS RESPONSIBLE FOR THE DAILY REMOVAL OF SEDIMENT THAT HAS BEEN TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE. ES -1 1: SEEDING OPERATIONS SHALL BE INITIATED WITHIN 7 DAYS AFTER REACHING FINAL GRADE OR UPON SUSPENSION OF GRADING OPERATIONS FOR AN ANTICIPATED DURATION OF GREATER THAN 30 DAYS OR UPON COMPLETION OF GRADING OPERATIONS FOR A SPECIFIC AREA. ES -12: THE CONTRACTOR SHALL BE RESPONSIBLE FOR PREVENTING SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOILS WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS, OR HARM ANIMAL OR PLANT LIFE. ES -13: A VSMP IS REQUIRED FOR PROJECTS DISTURBING 2,5100 SQUARE FEET OR GREATER IN A DESIGNATED CHESAPEAKE BAY PRESERVATION AREA (CBPA) OR GREATER THAN OR EQUAL TO 1 ACRE OUTSIDE THE CBPA. FOR MORE INFORMATION VISIT THE VIRGINIA STORMWATER MANAGEMENT PROGRAM PERMITTING WEB PAGE AT: http:Z/www.dcr.yi[ginia.goX/soil—and—water /vsml2.shtmilgenforms Virginia Erosion and Sediment Control Regulations Section 4VAC50 -30 -40 Minimum Standards All land— disturbing activities undertaken on private and publiic lands in the Commonwealth of Virginia must meet the 19 "minimum standards" for erosion and sediment control (ESC) in Section 4VAC50 -30 -40 of the Virginia Erosion and Sediment Control Regulations. The applicant who submits the ESC plan to the program autlhority for approval is responsible for ensuring compliance with the minimum standards that apply to his /her activities. A condensed version of the minimum standards is provided below. Please refer to the Regulations for a complete, unedited copy of the minimum standards. (1) Soil Stabilization. • Permanent or temporary soil stabilization shall be applied' to denuded areas within seven days after final grade is reached on any portion of the site • Temporary soil stabilization shall be applied within seven days to denuded areas that may not be at final grade but will remain dormant for longer than 30 days, but less than one year • Permanent stabilization shall be applied to areas that are to be left dormant for more than one year (2) Soil Stockpile Stabilization. During construction, soil stockpiles and borrow areas shall be stabilized or protected with sediment trapping measures. Temporary protection and permanent stabilization shall be applied to all soil stockpiles on site and borrow areas or soil intentionally transferred off site. stabilized. Permanent vegetation shall not be considered established until a ground cover is achieved that is: • Uniform • Mature enough to survive • Will inhibit erosion (3) Permanent Stabilization. Permanent vegetative cover shall be established on denuded areas not otherwise permanently stabilized. Permanent vegetation shall not be considered established until a ground cover is achieved that is: • Uniform • Mature enough to survive • Will inhibit erosion (4) Sediment Basins & Traps. Sediment basins, sediment traps, perimeter dikes, sediment barriers, and other measures intended to trap sediment shall be constructed as a first step in any land— disturbing activity and shall be made functional before upslope land disturbance takes place. (5) Stabilization of Earthen Structures Stabilization measures are not proposed on this project. (6) Sediment Traps & Sediment Basins Sediment traps and basins are not proposed on this project. (7) Cut and Fill Slopes Design & Construction. Cut and fill slopes shall be designed and constructed in a manner that will minimize erosion. Slopes found to be eroding excessively within one year of permanent stabilization shall be provided with additional slope stabilizing measures until the problem is corrected. (8) Concentrated Runoff Down Slopes. Concentrated runoff shall not flow down cut or fill slopes unless contained within an adequate temporary or permanent channel, flume, or slope drain structure. (9) Slope Maintenance. Whenever water seeps from a slope face, adequate drainage or other protection shall be provided. (10) Storm Sewer Inlet Protection . All storm sewer inlets made operable during construction shall be protected so that sediment —laden water cannot enter the stormwater conveyance system without first being filtered /treated to remove sediment. (11) Stormwater Conveyance (Protection. Before newly constructed stormwater conveyance channels or pipes are made operational, adequate outlet protection and any required temporary or permanent channel lining shall be installed in both the conveyance channel and the receiving channel. (12) Work in Live Watercourse. Work in Live Watercourse is not proposed on this project. (13) Crossing Live Watercourse. Crossing a Live Watercourse is not proposed on this project. (14) Regulation of Watercourse Crossing. Work in Live Watercourse is not proposed on this project. (15) Stabilization of Watercourse. Work in Live Watercourse is ont proposed on this project. (16) Underground Utility Line Installation . Underground utility lines shall be installed in accordance with the following standards in addition to other applicable criteria: • No more than 500 linear feet of trench may be opened at one time • Excavated material shall be placed on the uphill side of trenches • Effluent from dewatering operations shall be filtered or passed through an approved sediment trapping device, or both, and discharged in a manner that does not adversely affect flowing streams or off —site property • Material used for backfilling trenches shall be properly compacted in order to minimize erosion and promote stabilization • Restabilization shall be accomplished in accordance with these regulations • Comply with applicable safety regulations (17) Vehicular Sediment Tracking . Where construction vehicle access routes intersect paved or 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 paved or public road surface, the road surface shall be cleaned thoroughly at the end of each day Sediment shall be removed from the roads by shoveling or sweeping and transported to a sediment control disposal area. Street washing shall be allowed only after sediment is removed in this manner (18) Removal of Temporary Measures. All temporary erosion and sediment control measures shall be removed within 30 days after final site stabilization or after the temporary measures are no longer needed, unless otherwise authorized by the program authority. Trapped sediment and the disturbed soil areas resulting from the disposition of temporary measures shall be permanently stabilized to prevent further erosion and sedimentation. (19) Stormwater Management . Properties and waterways downstream from development sites shall be protected from sediment deposition, erosion, land damage due to increases in volume, velocity, and peak flow rate of stormwater runoff for the stated frequency storm of 24 —hour duration in accordance with the following standards and criteria: • Concentrated stormwater runoff leaving a development site shall be discharged directly into an adequate natural or man —made receiving channel, pipe, or storm sewer system. For those sites where runoff is discharged into a pipe or pipe system, downstream stability analyses at the outfall of the pipe or pipe system shall be performed. • Adequacy of all channels and pipes shall be verified: • Natural Channels — use 2 —year storm event • Manmade Channels — use 2— and 10 —year storm event • Pipe and Pipe Systems — use 10 —year storm event • If existing natural receiving channels or previously constructed man —made channels or pipes are not adequate, the applicant shall provide channel, pipe, or pipe system improvement or provide a combination of channel improvement, site design, stormwater detention, or other measures that is satisfactory to the program authority to prevent downstream erosion. • Provide evidence of permission to make the improvements • If the applicant chooses on option that includes stormwater detention he shall obtain approval from the locality of a plan for maintenance of the detention facilities. The plan shall set forth the maintenance requirements of the facility and the person responsible for performing the maintenance. • Outfall from a detention facility shall be discharged to a receiving channel, and energy dissipators shall be placed at the outfall of all detention facilities as necessary to provide a stabilized transition from the facility to the receiving channel. • Increased volumes of sheet flows that may cause erosion or sedimentation on adjacent property shall be diverted to a stable outlet, adequate channel, pipe or pipe system, or to a detention facility • In applying these stormwaiter runoff criteria, individual lots or parcels in a residential, commercial or industrial development shall not be considered to be separate development projects. Instead, the development as a whole shall be considered to be a single development project. • All measures used to protect properties and waterways shall be employed in a manner that minimizes impacts on the physical, chemical and biological integrity of rivers, streams and other waters of the state. Ok 1 TYLER S. AUSTIN y Lic. No. 053674 5/15/15 ti IS I ONA L LO M oo M D � 0 " a� 4 N r \ LO � N W LLJ z�N Z �^ LO LO �M h V iWz a a N � M x a Un Un T M � Q � Q J Q o T of M :D V) m D U) \ V) W w_ v L_ af E � � U) m o U Q 0 0 U U o z _±4 FTJ Ok 1 TYLER S. AUSTIN y Lic. No. 053674 5/15/15 ti IS I ONA L •I •I • • \W L/ I� Q ,Q :z U I� IW U Z V) W Cn 0- Z (if ::) LIJ O Z U W W J LL_i (/ _U Q O = W U m J (n Q W J W LL C3 Q W F- 6 w Y U w U c� Q Q 0 0 w Z 0 V) w 0 r 0 N L0 Ld Q 0 0 J IL N 0 L0 L0 0 D_ L U a 00 oo M D � 0 " Z m ^ 0 OeLn � N W LLJ z�N Z �^ Ell �M h V iWz N � M x •I •I • • \W L/ I� Q ,Q :z U I� IW U Z V) W Cn 0- Z (if ::) LIJ O Z U W W J LL_i (/ _U Q O = W U m J (n Q W J W LL C3 Q W F- 6 w Y U w U c� Q Q 0 0 w Z 0 V) w 0 r 0 N L0 Ld Q 0 0 J IL N 0 L0 L0 0 D_ L U a 3 0 CL E 0 U I N O L0 / V) O IL 0 U _J U 3 / Z U V) 0 / 0) 3 C) E Q) 0 Q 0 v 0 0 0 cr 0 0 w w U w I N O Ln LO O N ESC SYMBOLS LEGEND �- SYMBOL DESCRIPTION Q W LOD LIMITS OF DISTURBANCE r- V) Q TEMPORARY GRAVEL 3.02 O 0 CONSTRUCTION ENTRANCE Lo SF X v X SILT FENCE 3.05 PS PERMANENT SEEDING 3.32 MU PERMANENT MULCHING 3.35 DD DO CLEAN WATER 3.09 � W DIVERSION o J CD CHECK DAM 3.20 ST SEDIMENT TRAP 3.13 DC DUST CONTROL 3.39 W IVERSION 3.11 NORTH 40 0 40 80 SCALE OF FEET ��— 01", G ir f TYLER S. 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Ii. • ,, • ' .% . ,� .�, . k, ..'� ; I , '%'. - I " IN "I'," I 'I,/ � (I i .". . 1 � I'l .. -- I .� 1; z\ "I'-, --1 �-,, """ I Ill 1• . I \ \ SCALE OF FEET I - NX J H ofi� ", , . ,e%LL , "N I - � (,;, -0 , Q��- ?,;U-lr-- --� '' TYLER S. AUSTIN 9 �t . ,;-6 Lic. No. 053674 'Z�� 10 IQQ 5/15/15 . , , �J, 4� (;", 1� IS', ONA L - `� . ,�, - Gor- " \0 en � 0 x � < bi 0 r, 41 a) ,-, C14 � Lr) . 00 P, eq .. I ULd Lu QW) H �-, M wo , I CN H N N I �.� (:i � en 0 0 - ", LI) - Lr) &n S, IT � �-- z In 74 � I- m �4 -0 P4 Ld (.) Q:f Ld a_ 0 a: Q- Q- V) V) (/) . a_ (f) Ld -i LLJ CL < �-- . F- . . . . . >, m 0 < .) u < 7) -j r- C 0 U) . > (L' (r � :2 m ::) V) :2 m ::) V) 3: �- V) W - 0 - hj - E -0 :3 V) � 0 �-- 0 < F- cn - F- Z z D 0 0 0 0 LN 1 1 1 - NX J H ofi� ", , . ,e%LL , "N I - � (,;, -0 , Q��- ?,;U-lr-- --� '' TYLER S. AUSTIN 9 �t . ,;-6 Lic. No. 053674 'Z�� 10 IQQ 5/15/15 . , , �J, 4� (;", 1� IS', ONA L - `� . ,�, z 00 4 Gor- " \0 en � 0 x � < bi 0 r, Zm 0- pent/" en in cy . 00 P, eq .. I ULd Lu QW) H �-, M wo , I CN H N N I �.� (:i � en (D H h q (/) &n S, IT � �-- z In 74 � I- m �4 �- P4 z a_ c3 z < bi - - < = V) bi V) -i < [If V) 0 Q!� bi q (/) Z �-- z Q < W �- --J Ld (.) Q:f Ld a_ 0 a: Q- C) 0 U (/) . a_ (f) Ld -i LLJ I I I 0 I (f) I-- Ld LL- bi 3: C5 2 Ld -i Of < :2 Ld W -i < ;V / F- 6 Ld Y (-) LLI m: Q 0 :Q .. z < (r 0 =" Lw, r- ,I 0 LLJ z 0 (/) Ld 0 hv 0 C14 I--, Lr) - Lc) .. Ld F- �s F- 0 -i a- 04 0 LO Lr) -:� 0 Of n �J- C) < Ir U 3 N 0 a E 0 U I N O LO uj 0 cj- 0 U J U / 0 / z U W / v+ 3 E v Q) 3 v v 0 0 Qf w w U I N O LO Ln 0 N FLOW LEGEND SHEET FLOW SHALLOW CONCENTRATED FLOW CHANNEL FLOW DRAINAGE DIVIDE SCS Tc CALCULATION — DRAINAGE AREA 1 (PRE— DEVELOPMENT CONDITION (9.14 ACRES) 2 YEAR RAIN: 3.6" CURVE NUMBER: 54 SHEET FLOW • L = 150' • S = 5.3% • Tc = 4.16 MIN. SHALLOW CONCENTRATED FLOW • L = 173.5' • S = 7.76% • Tc = 0.64 MIN. CHANNEL FLOW (PIPE CULVERT) • L = 493' • S = 7.59% • X— SECTIONAL AREA: 2.03 • WETTED PERIMETER: 4.11 • Tc = 1.28 MIN. TOTAL Tc = 6.08 MIN. NORTH 40 0 40 80 SCALE OF FEET or c j4 fir. TYLER S. AUSTIN y 0 Lie. No. 053674 5/15/15 ONA L LO LO n 00 14 M � 0 h Z p 0 prnL IJ.. W P N W7 cn �11 H u Z N N 9 A Ur Fah z � i v w N M � ° LO LO a (n (n 0 c� m Q Q J J Q a °- m m :D Q) Of V) w \ c cy- v w ry mo lu--) E � U V) Q af D z O O L--6 or c j4 fir. TYLER S. AUSTIN y 0 Lie. No. 053674 5/15/15 ONA L `a', z n Q W Q LLl C U) <C C U) Q o n-**, ry W CL O ry w W W W 'IN U Z U) w U) a_ LLB z w W O U 07 W J W_ E C6 z O w J w m Q ¢ W 0 w Y U w 2 U Q z Q 0 Q w z 0 (n w n T* 0 N L0 \ In w Q 0 O J N 0 L0 L0 O U Q w 00 4 n 00 14 M � 0 h Z p 0 prnL IJ.. W P N W7 cn �11 H u Z N N 9 A Ur Fah z � i v w N M � `a', z n Q W Q LLl C U) <C C U) Q o n-**, ry W CL O ry w W W W 'IN U Z U) w U) a_ LLB z w W O U 07 W J W_ E C6 z O w J w m Q ¢ W 0 w Y U w 2 U Q z Q 0 Q w z 0 (n w n T* 0 N L0 \ In w Q 0 O J N 0 L0 L0 O U Q w 3 ai O a E O U I N O LO to Fw_- V) O n O U J_ U / 0 L6 / z w 0 / 3 0 E v Q 0 v O 0 0 co W w U I N O L0 Ln / L2 0 N CL FLOW LEGEND SHEET FLOW SHALLOW CONCENTRATED FLOW CHANNEL FLOW DRAINAGE DIVIDE SCS Tc CALCULATION - DRAINAGE AREA 1 (POST - DEVELOPMENT CONDITION) (9.14 ACRES) 2 YEAR RAIN: 3.6" CURVE NUMBER: 54 SHEET FLOW • L = 150' • S = 5.3% • Tc = 4.16 MIN. SHALLOW CONCENTRATED FLOW I • L = 141.94 • S = 0.70% • Tc = 1.75 MIN. SHALLOW CONCENTRATED FLOW II • L = 309.87' • S = 3.5% Tc = 1.71 MIN. CHANNEL FLOW (PIPE CULVERT) • L = 407.95' • S = 9.5% • X- SECTIONAL AREA: 2.40 • WETTED PERIMETER: 15.27 • Tc = 2.04 MIN. TOTAL Tc = 9.65 MIN. DISCHARGE ANALYSIS: DA -1 STORM EVENT EXISTING (PRE) (CFS) PROPOSED (POST) (CFS) IMPACT (CFS) 1 YEAR 0.75 0.60 -0.15 10 YEAR 17.33 15.61 -1.72 25 YEAR 28.37 25.99 -2.38 100 YEAR 52.36 48.68 -3.68 QPost Development <= I.F.* ((pre- development* RV pre - development) RVDeveloped Improved Factor I.F. 0.8 CHANNEL PROTECTION 1 -year 10 -yea r QPost Development FRVPoslt PRE POST (adjusted) PRE POST (adjusted) P (Inches of Rain) 3 3 5.5 5.5 CN rRV=(P-0.2S)'/((P-0.2S)+S)0.17 54 54 54 54 S ^== 1000/CN -10 8.52 8.52 8.52 8.52 0.2S 1.70 1.70 1.70 1.70 M x 0.17 1.17 1.17 QPost Development <= I.F.* ((pre- development* RV pre - development) RVDeveloped Improved Factor I.F. 0.8 CHANNEL PROTECTION Qpre- development 0.75 QPost Development FRVPoslt 0.6 Development {with runoff reductions 0.17 Qallowable_ 0.60 FLOOD CONTROL Qpre- development 17.33 QPost Development 15.61 RVPost Development (with runoff reductions 1.17 Qallowable 17.33 TYLER S. AUSTIN oLic. No. 053674 , 5/15/15 <S 19NA 1, LO U-) cc cc 110 M i V en O n Z o o 00 � N W W a �y e ° N N LO (D z � a a N v M x a F- M Q Q Q ° a� m N m D V) � w_ ° Ll- Of E � m o � � V) U Q zZ D O O U U ° Z � N TYLER S. AUSTIN oLic. No. 053674 , 5/15/15 <S 19NA 1, Q W Q Q O U) W • J W W V0'^ / In W CD Q z Q D W 0 V) 0 n U Z Vi W w Z W W U_ O U V) cy- W 0 J W_ E C7 z O 0 W W m J Q Q 0 W Y U W U O a Z Q 0 a 0 w z c� V) w 0 N O N L0 L0 a 0 O N O LO L0 O Of 0- U fy- Q 00 cc cc 110 M i V en O n Z o o 00 � N W W a �y e Z N N (D z � W N v M x Q W Q Q O U) W • J W W V0'^ / In W CD Q z Q D W 0 V) 0 n U Z Vi W w Z W W U_ O U V) cy- W 0 J W_ E C7 z O 0 W W m J Q Q 0 W Y U W U O a Z Q 0 a 0 w z c� V) w 0 N O N L0 L0 a 0 O N O LO L0 O Of 0- U fy- Q v) 3 ai 0 Q- E 0 U I N O LO / V) O CL 0 U / J U / 0 �i / z 0 CO 0 / rn 3 0 E v v 3 v v 0 Cr 0 wv Lj- W U 1 N O 0 N 'a7 Elev (ft) Section Depth (ft) I I Elev (ft) Section Depth (ft) I I Elev (ft) Section Depth (ft) 449.00 448.50 -E 11 447.50 CLW1Ij7 446.50 446.00 0 5 10 15 20 25 30 35 40 Reach (ft) "1..54 080 0.30 45 50 55 60 446.00` 445.00 444.00 443.00 1.45 0.45 0 5 10 15 20 25 30 35 Reach (ft) 40 45 50 55 60 65 444.00 443.50 0.92 0.42 -0.08 -0.58 TYLER S. AUSTIN 0 Lic. No. 053674 5/15/15 cv ti I ONAL S� LO LC) V) z a� N r- \ w � Y U o Lo � Ln Q Q O U O ¢ Q zPa ^ 0 /I--1 li W * r-4 �C9 �4 U) V) 0 F- o � y 4 O W a a N W W I mC.� Q Q W U_ O Q i � Q J M � Q O Elf Q Q Ld W a � —� W ° r_ m N m N LO OLO \ N _w 0 v +1 LL- af m E � � U) O 0 U ¢ u) of Z Z D O O U U O Z - N TYLER S. AUSTIN 0 Lic. No. 053674 5/15/15 cv ti I ONAL S� 7 w Z 0 V) w I��j z V) z 0 w � Y U 000 W Q Q O U O W zPa ^ 0 /I--1 li W * r-4 �C9 �4 (-f) 1):f Of Z 0 F- o � y 4 O W ., a N W W I W U_ O Q i � Q W m M � Q 7 w Z 0 V) w I��j z L, z O o N LO Q Q z O W CL (-f) 1):f Of Z 0 F- o (V O a_ O W z 0 ° U a Cf) 0 W W I W U_ O Q � W W m O Elf Q Q Ld W J W � —� W _W Li N LO OLO 0 U) m v� 3 ai 0 a E 0 U I N O LO LO W I- V) 0 Q_ 0 U / J U 0 Li / z w 0 / v+ 3 r) E N Q, v Q m v 3 v 0 0 cn cn v w w i N O L0 LO / 0 N GROUND ►iili�It� A FILTER CLOTH 6" MIN. I Al SIDE ELEVATION 12' M11\1.* IN * 70' MIN. B WASHRACK (OPTIONAL) Z__ VDOT #1 I I POSITIVE DRAINAGE COURSE AGGREGATE B TO SEDIMENT TRAPPING DEVICE MUST * OPERATION EXTEND FULL WIDTH PLAN VIEW OF INGRESS AND EGRESS EXISTING PAVEMENT 5.1 • MOUNTABLE BERM (OPTIONAL) 10' MIN. EXISTING PAVEMENT 10' MIN. SECTION A -A REINFORCED CONCRETE SECTION B -B DRAIN SPACE TEMPORARY INISTONE NDCONSTRUC�TIiO CONSTRUCTION C� N.T.S. SOURCE. FI L (Of 1. SET THE STAKES. WMN FLOW / iI 3. STAPLE FILTER MATERIAL TO STAKES AND EXTEND IT INTO THE TRENCH. G i II11 FLOW SHEET FLOW INSTALLATION (PERSPECTIVE VIEW) 2. EXCAVATE A 4 "X 4" TRENCH UPSLOPE ALONG THE LINE OF STAKES G r 4' 4. BACKFILL AND COMPACT THE EXCAVATED SOIL. POINTS A SHOULD BE HIGHER THAN POINT B. DRAINAGEWAY INSTALLATION (FRONT ELEVATION) CONSTRUCTION OF SILT FENCE (WITHOUT WIRE SUPPORT) N.T.S. SOURCE: VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK 1AX. DRAINAGE DIRECTION TOPSOIL STOCKPILE SILT FENCE TOPSOIL STOCKPILE N.T.S. (DOWNSTREAM VIEW) VDOT #1 COARSE AGGREGATE 12" VDOT #57 *SEDIMENT FOREBAY INSTALLED AT 12" AGGREGATE DEPTH, 2' WIDTH, AND 6' LENGTH REQUIRED WHERE DRAINAGE AREA s EXCEEDS 1 ACRE OR DITCH GRADE 24" MAX 2•7 EXCEEDS 3 %. ��-�.�;`��`r� it ice, „�:��'.�� jC`' •11 :l ROCK CHECK DAM (VDOT TYPE II N.T.S. - SOURCE: VDOT ROAD SAND BRIDGE STANDARDS - EC -4 SF PLATE 3.05 -2 DO NOT STOCKPILE SOIL IN DRAINWAYS * 1' VARIABLE * SEE PLATE 3.13 -1 COARSE AGGREGATE CLASS I RIPRAP CROSS SECTION OF OUTLET CLASS I RIPRAP LENGTH (IN FEET) _ 6 X DRAINAGE AREA (IN AC.) DIVERSION DIKE 71 Z COARSE AGGREGATE EXCAVATED AREA FILTER CLOTH ** COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 OUTLET (PERSPECTIVE VIEW) k \L D TEMPORARY SEDIMENT TRAP ST N.T.S. Source: Virginia Erosion and Sediment Control Handbook PLATE 3.13 -2 H HO W 1.5 0.5 2.0 2.0 1.0 2.0 2.5 1.5 2.5 3.0 2.0 2.5 3.5 2.5 3.0 4.0 3.0 3.0 4.5 3.5 4.0 5.0 4.0 4.5 ORIGINAL GROUND ELEV. SEDIMENT TRAP TOP WIDTH ST N.T.S. Source: Virginia Erosion and Sediment Control Handbook PLATE 3.13 -1 SEDIMENT TRAP (ST -1 B) CALCULATIONS ELEVATION AREA (SF) INCR. VOLUME (CY) CUMMULATIVE VOLUME (CY) 464 939 U 0 0 466 1531 z 91.481 91.481 468 2257 W = 140.296 231.778 470 3115 ^ 0 198.963 430.741 �+ � N a- L� w O °- a- cn W z L0 Lr) SEDIMENT TRAP DRAINAGE AREA = 2.99 ACRES REQUIRED WET STORAGE = 67.0 CY /ACRE x 2.99 = 200.33 CY REQUIRED DRY STORAGE = 67.0 CY /ACRE x 2.99 = 200.33 CY REQUIRED OUTLET WEIR LENGTH = 6FT /ACRE x 2.99 = 17.94 FT CLEANOUT ELEVATION = 466.12 (I/2 VOLUME OF WET STORAGE) TOP OF EMBANKMENT ELEVATION = 470 FT (MINIMUM) EMBANKMENT TOF WIDTH = 2.5 FT MIN. CUT /FILL SLOPES: 2:1 x a I 2' MIN. " �`�„ STANDARD CLEAN WATER DIVERSION Disturbed Area -<J V r TYLER S. AUSTIN 0 Lic. No. 053674 5/15/15 Jw� <� >I9NA1, L Q LO o N 07 U N \ W z ao � Y U LIJ Q a� W = O � U zt� ^ 0 w �+ � N a- L� w O °- a- cn W z L0 Lr) H a4 Q H U_ Q w W M < x a � U Q ry CL 0 V) W J W 0 -I W_ I- L� O W LO CD 0 O o! m Q W Q U Q J a in T in :3 0 N Of In 3:: W_ \ V) w W v LL_ O_ E 0 ) r U N Q zZ ZD O O U U � � N Z r TYLER S. AUSTIN 0 Lic. No. 053674 5/15/15 Jw� <� >I9NA1, Q W / V Z/I� 'V / W r) z Q LO o N 07 U LO Q W z ao � Y U LIJ Q � � M e W = O � U zt� ^ 0 w �+ � N a- L� w O °- a- cn W z U za�N QW) H a4 Q H U_ Q w W M < x a � Q W / V Z/I� 'V / W r) z LO o N U LO Q z LIJ Q W Q LLJ Q _j � C/) O a- L� 0 O °- a- cn LLJ z U LLI W W ry U_ Q w U O = LLI m � O W U Q ry W J W 0 -I W_ I- L� O W LO O o! D_ W U Q C9