HomeMy WebLinkAboutWPO201300025 Plan - Approved 2013-04-04MINIMUM STANDARDS
STATE ROUTE 240
(1)
STABILIZATION.
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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.
NOTCN 'D ROAD ST.RT.
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,
B02
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.
(3)
PERMANENT STABILIZATION.
PERMANENT VEGETATIVE COVER SHALL BE ESTABLISHED ON DENUDED AREAS NOT OTHERWISE PERMANENTLY STABILIZED.PERMANENT VEGETATION SHALL NOT BE CONSIDERED ESTABLISHED UNTIL
RAILROAD
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 SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES, AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION.
(6)
SEDIMENT TRAPS & SEDIMENT BASINS. SEDIMENT TRAPS AND BASINS SHALL BE DESIGNED AND CONSTRUCTED BASED UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY
THE TRAP OR BASIN AS FOLLOWS:
SEDIMENT TRAPS: ONLY CONTROL DRAINAGE AREAS LESS THAN THREE ACRES & MINIMUM STORAGE CAPACITY OF 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA
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SEDIMENT BASINS: CONTROL DRAINAGE AREAS GREATER THAN OR EQUAL TO THREE ACRES, MINIMUM STORAGE CAPACITY OF 134 CUBIC YARDS PER ACRE OF DRAINAGE AREA & THE OUTFALL SYSTEM
HILL
SHALL, AT A MINIMUM, MAINTAIN THE STRUCTURAL INTEGRITY OF THE BASIN DURING A TWENTYFIVEYEAR STORM OF 24 -HOUR DURATION
ROAD
SITE
(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.
5
FOXDALE 15�
(8)
CONCENTRATED
LANE
RATED RUNOFF SHALL NOT DOWN CUT OR FILL SLOPES UNLESS CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME, OR SLOPE DRAIN STRUCTURE.
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(9)
SLOPE MAINTENANCE.
WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED.
(10)
STORM SEWER INLET PROTECTION.
HEDGEROW
LANE
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.
VICINITY
(11)
STORMWATER CONVEYANCE PROTECTION.
SCALE: 1" _
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.
WHEN WORK IN A LIVE WATERCOURSE IS PERFORMED PRECAUTIONS SHALL BE TAKEN TO MINIMIZE ENCROACHMENT, CONTROL SEDIMENT TRANSPORT,
AND STABILIZE THE WORK AREA TO THE GREATEST EXTENT POSSIBLE DURING CONSTRUCTION NONERODIBLE MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS.
EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NONERODIBLE COVER MATERIALS.O
(13)
CROSSING LIVE WATERCOURSE.
WHEN A LIVE WATERCOURSE MUST BE CROSSED BY CONSTRUCTION VEHICLES MORE THAN TWICE IN ANY SIX -MONTH PERIOD,
A TEMPORARY VEHICULAR STREAM CROSSING CONSTRUCTED OF NONEROOIBLE MATERIAL SHALL BE PROVIDED.
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(14)
REGULATION OF WATERCOURSE CROSSING.
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ALL APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL BE MET.
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(15)
STABILIZATION OF WATERCOURSE.
THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED.
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(16)
UNDERGROUND UTILITY LINE INSTALLATION.
UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA:
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A. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME
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B. EXCAVATED MATERIAL SHALL BE PLACED ON THE UPHILL SIDE OF TRENCHES
C. 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.
0. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE STABILIZATION
E. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THESE REGULATIONS
F. 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
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, AND
DAMAGE DUE TO INCREASES IN VOLUME, VELOCITY, AND PEAK FLOW RATE OF STORMWATER RUNOFF FOR THE STATED FREQUENCY STORM OF
24 -HOUR DURATION.
EROSION AND SEDIMENT CONTROL 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.
B. 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 RUNOFFPRODUCING
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 6OLBS /100SF.
ALTERNATIVES ARE SUBJECT TO APPROVED BY THE COUNTY EROSION CONTROL INSPECTOR.
1B. 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 180LBS /ACRE AND CONSIST OF 95% KENTUCKY 31 OR
TALL FESCUE AND 0 -5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE
APPLIED AT B0LBS /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.
21. THIS PLAN SHALL BE VOID IF THE OWNER DOES NOT OBTAIN A PERMIT WITHIN 1 YEAR OF THE DATE OF
APPROVAL. (WATER PROTECTION ORDINANCE SECTION 17- 204G.)
22. PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE (9) MONTHS AFTER
THE DATE THE LAND DISTURBING ACTIVITY COMMENCED. (WATER PROTECTION ORDINANCE SECTION 17-
2076)
EROSION AND SEDIMENT CONTROL NARRATIVE:
PROJECT DESCRIPTION
THE PURPOSE OF THIS PROJECT IS TO BUILD THE SHARED DRIVEWAY TO SERVE LOTS A & B.
THE DISTURBED AREA IS 1.3 ACRES.
EXISTING SITE CONDITIONS
THE SITE IS CURRENTLY COVERED WITH A MIXTURE OF WILD GRASSES AND WEEDS.
THERE ARE OVERHEAD UTILITY LINES RUNNING ACROSS THE SITE.
ADJACENT AREAS
THE SITE IS LOCATED WITHIN LOTS A & B WITH A STREAM BUFFER ADJACENT TO THE SHARED DRIVEWAY.
OFF SITE AREAS
NO OFF SITE DISTURBANCE IS PROPOSED.
SOILS
SEE SOIL SURVEY MAP AREAS DRAWN ON SHEET 2
4D - Ashe loam, 15 to 25 percent slopes
Ashe is a moderately steep to steep, moderately deep, somewhat excessively drained soil. Typically the surface layer is loam about 10 inches
thick. The surface layer has a moderate content of organic matter. The slowest permeability is moderately rapid. It has a low available water
capacity and a low shrink swell potential. This soil is riot flooded and is not ponded. The seasonal high water table is at a depth of more than
6 feet. The land capability classification is 6e. The Virginia soil management group is JJ. This soil is not hydric.
368 - Hayesville loam, 2 to 7 percent slopes
Hayesville is a gently sloping to moderately sloping, very deep, well drained soil. Typically the surface layer is loam about 7 inches thick. The
surface layer has a moderate content of organic matter. The slowest permeability is moderate. It has a high available water capacity and a
low shrink swell potential. This soil is not flooded and is not ponded. The seasonal high water table is at a depth of more than 6 feet. The
land capability classification is 2e. The Virginia soil management group is X. This soil is not hydric.
36C - Hayesville loam, 7 to 15 percent slopes
Hayesville is a strongly sloping to moderately steep, very deep, well drained soil. Typically the surface layer is loam about 7 inches thick. The
surface layer has a moderate content of organic matter. The slowest permeability is moderate. It has a high available water capacity and a
low shrink swell potential. This soil is not flooded and is not ponded. The seasonal high water table is at a depth of more than 6 feet. The
land capability classification is 4e. The Virginia soil management group is X. This soil is not hydric.
CRITICAL AREAS
CARE SHALL BE TAKEN TO STABILIZE ALL SLOPES AND PREVENT EROSION. STREAM BUFFER SHALL REMAIN UNDISTURBED. OWNER SHALL OBTAIN ANY NECESSARY APPROVAL
FOR RELOCATING UTILITY POLES.
EROSION AND SEDIMENT CONTROL MEASURES
ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE CONSTRUCTED AND MAINTAINED ACCORDING TO THE MINIMUM STANDARDS
AND SPECIFICATIONS OF THE VIRGINIA EROSION ANC SEDIMENT CONTROL REGULATIONS, LATEST EDITION.
STRUCTURAL PRACTICES
1. TEMPORARY CONSTRUCTION ENTRANCE 3.02
A TEMPORARY CONSTRUCION ENTRANCE WILL BE INSTALLED AT THE ENTRANCE TO U.S. ROUTE 250.
2. SILT ,FENCE 3.05 - -- • _ �. _ __ _
- --
SILT FENCE WILL BE INSTALLED AT LOWER SIDE OF DRIVE GRADING AREA TO FILTER RUNOFF FROM CONSTRUCTION.
3. TEMPORARY DIVERSION DIKE 3.09
TEMPORARY DIVERSION DIKE WILL BE INSTALLED AT SAME TIME AS CULVERT TO DIVERT RUNOFF INTO SILT TRAP #2
4. TEMPORARY SEDIMENT TRAP 3.13
TEMPORARY SEDIMENT TRAPS WILL BE INSTALLED TO COLLECT RUNOFF FROM DITCHES ON UPPER SIDE OF DRIVE.
5. OUTLET PROTECTION 3.18
OUTLET PROTECTION WILL BE INSTALLED AT THE OUTLET OF BOTH CULVERTS TO PREVENT SCOUR AT STORMWATER OUTLETS AND MINIMIZE DOWNSTREAM EROSION.
6. ROCK CHECK DAM 3.20
ROCK CHECK DAMS WILL BE INSTALLED ALONG DITCH LEADING TO SILT TRAP #i.
7. DUST CONTROL 3.39
PROVIDE DUST CONTROL IN AREAS SUBJECT TO SURFACE AND AIR MOVEMENT OF DUST WHERE ON -SITE AND OFF -SITE DAMAGE IS LIKELY TO OCCUR IF
PREVENTIVE MEASURES ARE NOT TAKEN,
VEGETATIVE PRACTICES
1. TOPSOILING & STOCKPILING 3.30
TOPSOIL WILL BE STRIPPED FROM AREAS TO BE GRADED AND STOCKPILED FOR LATER USE. STOCKPILES ARE TO BE STABILIZED WITH TEMPORARY VEGETATION
AND HAVE SILT FENCE INSTALLED ALONG THE LOWER PERIMETER. STOCKPILES SHALL BE LOCATED AS SHOWN ON THE PLANS
2. TEMPORARY SEEDING 3.31
ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR 30 DAYS OR MORE SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION IMMEDIATELY
FOLLOWING GRADING. SEED SELECTION WILL BE DEPENDANT ON THE TIME OF YEAR IN ACCORDANCE WITH THE EROSION AND SEDIMENT CONTROL HANDBOOK.
3. MULCHING 3.35
ALL TEMPORARY AND PERMANENT SEEDING SHALL BE STRAW MULCHED.
PERMANENT STABILIZATION
ALL AREAS DISTURBED BY CONSTRUCTION SHALL BE STABILIZED WITH PERMANENT SEEDING WITHIN 7 DAYS FOLLOWING FINISH GRADING.
SEEDING SHALL BE DONE ACCORDING TO STANDARD AND SPECIFICATION 3. 32, PERMANENT SEEDING, OF THE HANDBOOK. SEEDING SHALL BE APPLIED
DEPENDING ON TIME OF THE YEAR ACCORDING TO THE EROSION AND SEDIMENT CONTROL HANDBOOK SPECIFICATIONS.
MAINTENANCE
ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE AT THE END OF EACH DAY AND AFTER EVERY RAINFALL EVENT.
1. DAMAGE TO EROSION CONTROL MEASURES CAUSED BY CONSTRUCTION TRAFFIC OR OTHER ACTIVITY SHALL BE REPAIRED BEFORE THE END OF EACH WORKING DAY.
2. MAINTAIN ALL SEEDED AREAS UNTIL A UNIFORM STAND IS ACCEPTED.
3. THE GRAVEL CONSTRUCTION ENTRANCE SHALL BE MAINTAINED IN A CONDITION, WHICH WILL PREVENT TRACKING OR FLOW OF MUD
ONTO PUBLIC RIGHT -OF -WAYS. PERIODIC TOP DRESSING WITH ADDITIONAL STONE WILL BE REQUIRED WHEN THE STONE IS COVERED
OR HAS BEEN PUSHED INTO THE SOIL.
SEQUENCE OF CONSTRUCTION
1. INSTALL SILT FENCE.
2. CONSTRUCT THE TEMPORARY CONSTRUCTION ENTRANCE.
3. CONSTRUCT TEMPORARY SILT TRAPS AND TEMPORARY SEEDING.
4. ROUGH GRADE DRIVE.
5. INSTALL CULVERTS AND END SECTIONS.
6. FINISH GRADE DRIVE AND DITCHES.
7. INSTALL INLET AND OUTLET PROTECTION AND DITCH LININGS.
B. INSTALL BASE STONE.
9. ALL EROSION CONTROL DEVICES MUST REMAIN IN PLACE UNTIL RELEASED BY THE ALBEMARLE COUNTY EROSION OFFICIAL.
10. REMOVE TEMPORARY EROSION CONTROL MEASURES.
11. PERFORM PERMANENT SEEDING AND STABILIZE ALL DISTURBED AREAS.
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APPROVED
by {fie Albemarle County
Commm ity Development Department
Date 4- - 3 el -r c'c' t 3
File L,,-, ( ( ' A l 7 0 f 3 U 6 L 5
SEDIMENT G EROSION CONTROL PLAN
FOR SHARED DRIVEWAY SERVING
LOTS A 6 B
A DIVISION OF
TAX MAP 56 PARCEL 100
THE PROPERTY OF
S. DALEY CRAIG, JR.
ALBEMARLE COUNTY, VIRGINIA
SCALE : I" = 50' DATE : APRIL 1,
REVISED : APRIL 23,
FOR
S. DALEY CRAIG, JR.
ROGER W. RAY & ASSOC., INC.
1717 -16 ALLIED STREET
CHARLOTTESVILLE, VIRGINIA 22903
LAND SURVEYORS LAND PLANNERS
434 - 293 -3195
2013
2013
SHEET 1 OF 2
14091A
TOPOGRAPHIC DATA WAS TAKEN FROM THE ALBEMARLE COUNTY GIS DATA. (4' CONTOURS)
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1 \ \\ _ - _ - - - _ _ _ ° ' 1` ` - I' �+ j .1 09 ' \\ `\ VOLUME REQUIRED =0.21 (134) (27) =760 CU . FT .
WET - -- _____ - - "� STORAGE REQUIRED =380 C.F.
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WET STORAGE PROVIDED =387 C.F.
DRY STORAGE REQUIREO =380 C.F.
DRY STORAGE PROVIDED =454 C.F.
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r �° r BOTTOM OF EXCAVATED AREA =5' x 12 '
LEGEND _ , , \ - - / - \\ of ' -a t \ 11 1 + -A • , DEPTH OF WET STORAGE =3 '
-4 • c\ 1' r - BOTTOM OF WEIR AREA =11' x18'
DEPTH OF DRY STORAGE =1.5'
-` \ ` TOP OF DRY STORAGE AREA =17'x24'
CD ROCK CHECK DAM _ - - -- _ \, -'\ `� m `\ \ \' \ `\ 4 " ®, ' ,' /�� LENGTH = 0.21(6) =1.3'
E, &S. STD. G SPEC. N0. 3.20 '' � - - \` ' ``♦ �' \\ \\ `\ + +. i i ' ' f ' H =2.5'
CE TEMPORARY CONSTRUCTION ENTRANCE /' `\ `\ `� `\ ,' \ `\ ` \�! , \ in W =2.5
E. &S. STD. & SPEC. NO. 3.02
ODUST CONTROL ' - I TEMPORARY SEDIMENT TRAP #2
DC E. &S. STD. & SPEC, NO. 3.39 ` \ ' '
�`\ \.`, \` \ / 11 1 DRAINAGE AREA = 0.25 ACRES
`\ `\ ♦ \ \ , VOLUME REQUIRED =0.25 (134) (27) =904 CU. FT.
DD TEMPORARY DIVERSION DIKE y ` / / 1 , WET STORAGE REQUIRED =452 C.F.
E. &S. STD. & SPEC. NO. 3.09 yl `, \\ \\ ,' ,'�\ + I WET STORAGE PROVIDED =477 C.F.
DRY STORAGE REQUIREO =452 C.F.
�`� `\ \\ /'• i \I /' // + i DRY STORAGE PROVIDED =517 C.F.
PERMANENT SEEDING m
PS E. &S. STD. & SPEC. NO. 3.32 a BOTTOM OF EXCAVATED AREA = 7'x12'
\\ `\ `' �• ,' /' `+ \\ DEPTH OF WET STORAGE =3 '
OUTLET PROTECTION o \\ '\ -_ ,' ,' + ` \\ BOTTOM OF WEIR AREA = 13'x18'
OP E. &S. STD. & SPEC. NO. 3.18 m - \\ '\ `\ ,' , -/ ,' DEPTH OF DRY STORAGE =1.5
TOP OF DRY STORAGE AREA = 19'x24'
- ^ - - - -^
___ - - - -- \\ \ \\ �/ // , \♦ LENGTH =0.25 (6) =i.5'
SILT FENCE ` �\ H =2.5'
SF /
E. &S. STD. & SPEC. NO. 3.05 Ho =1.5'
W =2.5'
TEMPORARY SEDIMENT TRAP ` \
E. &S, STD. & SPEC. NO. 3.13 /� ' ' - \ \I
`\ `\ `\ , ' !r � ,' \\ �t TEMPORARY SEDIMENT TRAP #3
` ' DRAINAGE AREA = 0.9 ACRES
TS TEMPORARY SEEDING - ` \\ �,' rrr DIVIDE -'� /'' _ _ _ _ -
E. &S. STD. 6 SPEC. N0, 3.31 DRAINAGE VOLUME REQUIRED = 0.9(134) (27) =3,256 CU. FT.
WET STORAGE REQUIRED =1628 C.F.
WET STORAGE PROVIDED =1684 C.F.
OMULCHING \\ \\ ,' _ /' DRY STORAGE REQUIRED =1628 C.F.
MU E. &S. STD. & SPEC. NO. 3.35 `\ ; ` \,/ ,' DRY STORAGE PROVIDED =1642 C.F.
\` ! BOTTOM OF EXCAVATED AREA= ii'x23'
-_ DEPTH OF WET STORAGE =4'
- BOTTOM OF WEIR AREA = 19'x31'
DEPTH OF DRY STORAGE =2.0'
TOP OF DRY STORAGE AREA= 27'x39'
LENGTH =O.9 (6) =5.4 '
H =3.0'
GRAPHIC SCALE 1 " =50' ROGER W. RAY & ASSOC., INC. Ho =2.0'
1717 -1B ALLIED STREET W =2.5'
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