HomeMy WebLinkAboutWPO202000042 Plan - Revision 2020-10-26I,
SITE DATA
OWNER: CALVIN DABNEY
2435 GOBBLERS RIDGE
CHARLOTTESVILLE, VA 22902
PLAN PREPARER: ROUDABUSH, GALE, & ASSOCIATES INC
172 SOUTH PANTOPS DR. STE A
CHARLOTTESVILLE, VA. 22911
(434)-979-8121
TAX MAP PARCEL No: 93-15
BOUNDARY ALBEMARLE COUNTY CIS
ZONING: RESIDENTIAL
CURRENT USE. RESIDENTIAL
PROJECT AREA: 1.60 ACRES
TOPOGRAPHY.- ALBEMARLE COUNTY GIS- 4FT
GENERAL NOTE: THE PURPOSE OF THIS OF THIS PLAN IS TO FILL IN AN EXISTING POND ON THE HOMEOWNERS
PROPERTY. THIS RESIDENTIAL POND HAS BEEN INSPECTED BY ALBEMARLE COUNTY AND DEEMED
AS A FREESTANDING RECREATIONAL MEASURE AND ACCEPTABLE TO FILL IN BY REGULATORY
OFFICIALS. THIS POND DOES NOT CONTAIN ANY KNOWN DOWNSTREAM OUTLET AND IS NOT FED
BY ANY KNOWN JURISDICTIONAL BODIES OF WATER UPSTREAM. THIS LAND DISTURBANCE IS
SUBJECT TO COUNTY REGULATION 18-5. 1.28 (BORROW, FILL, OR WASTE AREAS). ANY OFFSITE
FILL USED FOR THIS SITE MUST COME FROM A SITE WITH AN APPROVED ESC AND/OR
STORMWATER MANAGEMENT PLAN
RESPONSIBLE LAND DISTURBER: CALVIN DABNEY RLD113769
GENERAL EROSION CONTROL NOTES
WORK AREA PROTECTION & MAINTENANCE
1.ALL FENCES REQUIRED TO BE REMOVED OR DISTURBED BY CONSTRUCTION SHALL BE SALVAGED, STORED, PROTECTED AND
RE -INSTALLED BY CONTRACTOR AT THE DIRECTION OF AND LOCATION DESIGNATED BY THE PROJECT MANAGER. IF SUCH FENCE
MATERIAL CANNOT BE REUSED DUE TO DAMAGE CAUSED BY CONTRACTOR, CONTRACTOR SHALL INSTALL NEW FENCE OF THE
SAME TYPE OF MATERIAL. TEMPORARY FENCING REQUIRED BY PRIVATE PROPERTY OWNERS SHALL BE PROVIDED BY CONTRACTOR.
CONTRACTOR IS ADVISED TO CONTACT PROPERTY OWNERS AT LEAST FORTY-EIGHT (48) HOURS IN ADVANCE OF REMOVING ANY
FENCE IN ORDER TO COORDINATE RELOCATION AND/OR PROTECTION OF ANY ANIMALS, AND TO ESTABLISH AND CONFIRM WITH
THE OWNER THE PRE -CONSTRUCTION CONDITION OF ANY FENCE TO BE REMOVED, DISTURBED OR REPLACED.
2.CONTRACTOR IS PERMITTED TO WORK IN THE PUBLIC RIGHT-OF-WAY (FOLLOWING ISSUANCE OF VDOT APPROVAL) AND ANY
TEMPORARY OR PERMANENT EASEMENT (FOLLOWING VERIFICATION OF EXISTENCE OF EASEMENT) SHOWN ON THE PLANS.
HOWEVER CONTRACTOR SHALL NOTIFY PROPERTY OWNERS FORTY-EIGHT 48 HOURS PRIOR TO WORKING ON ANY PRIVATE
PROPERTY TO GAIN AND COORDINATE ACCESS AND TO DETERMINE A STORAGE AREA FOR MATERIALS IF NEEDED. COORDINATION
OF ACCESS TO PUBLIC RIGHT-OF-WAY AND STORAGE OF MATERIALS THEREON SHALL BE COORDINATED WITH VDOT AND THE
PROJECT MANAGER. CONTRACTOR'S FAILURE TO SO NOTIFY AND COORDINATE WITH PROPERTY OWNERS AND/OR THE PROJECT
MANAGER MAY RESULT IN DELAYS.
3. CONTRACTOR SHALL, AT HIS EXPENSE, MAINTAIN THE WORK SITE IN A CLEAN AND ORDERLY APPEARANCE AT ALL TIMES. ALL
DEBRIS AND SURPLUS MATERIAL COLLECTED SHALL BE DISPOSED OF OFF THE WORK SITE BY CONTRACTOR, AT HIS EXPENSE.
4. EXISTING LAWNS, TREES, SHRUBS, FENCES, UTILITIES, CULVERTS, WALLS, WALKS, DRIVEWAYS, POLES, SIGNS, RIGHT-OF-WAY
MONUMENTS, MAILBOXES AND THE LIKE SHALL BE PROTECTED FROM DAMAGE DURING THE WORK. ANY DAMAGE CAUSED TO SUCH
ITEMS SHALL BE REPAIRED OR REPLACED BY CONTRACTOR AT NO ADDITIONAL COST. PROPERTY PINS DISTURBED BY CONTRACTOR
THAT ARE NOT SHOWN ON THE PLANS TO BE DISTURBED SHALL BE RESTORED BY A LICENSED SURVEYOR AT CONTRACTOR'S
EXPENSE.
5.CONTRACTOR SHALL EMPLOY EROSION CONTROL DEVICES AND METHODS AS REQUIRED TO MEET THE REQUIREMENTS AND INTENT
OF THE LOCAL EROSION CONTROL ORDINANCE. CONTRACTOR SHALL PROVIDE THE NECESSARY DIVERSION DITCHES, DIKES OR
TEMPORARY CULVERTS REQUIRED TO PREVENT MUD AND DEBRIS FROM BEING WASHED ONTO THE STREETS OR PROPERTY.
CONTRACTOR'S VEHICLES SHALL BE KEPT CLEAN TO PREVENT MUD OR DUST FROM BEING DEPOSITED ON STREETS. NO AREA
SHALL BE LEFT DENUDED FOR MORE THAN SEVEN (7) CALENDAR DAYS.
1. PRIOR TO REMOVING ANY VEGETATION, CONTRACTOR SHALL MEET WITH THE PROPERTY OWNERS AND THE PROJECT MANAGER TO
REVIEW THE LIMITS OF CONSTRUCTION AND OBTAIN PERMISSION TO REMOVE VEGETATION REQUIRED TO DO THE WORK.
2. TREE AND PLANT ROOTS OR BRANCHES THAT MAY INTERFERE WITH THE WORK SHALL BE TRIMMED OR CUT ONLY WITH THE
APPROVAL OF THE PROJECT MANAGER. ANY TREES OR PLANTS WHICH ARE SHOWN TO REMAIN THAT DO NOT INTERFERE WITH
THE WORK, BUT ARE DAMAGED BY CONTRACTOR OR HIS SUBCONTRACTORS, SHALL BE REPAIRED OR REPLACED BY CONTRACTOR
AT NO ADDITIONAL COST.
3. CONTRACTOR SHALL CLEAN UP, RESTORE, SEED AND MAINTAIN ALL DISTURBED AREAS IMMEDIATELY UPON COMPLETION OF
WORK ON EACH SITE. TOPSOIL, SEED, FERTILIZER AND MULCH SHALL BE PLACED IN ACCORDANCE WITH ESC AUTHORITY
STANDARDS ON ALL DISTURBED AREAS. A PERMANENT STAND OF GRASS ADEQUATE TO PREVENT EROSION SHALL BE ESTABLISHED
PRIOR TO FINAL ACCEPTANCE.
4. THE ACT OF RESEEDING SHALL NOT QUALIFY AS 'STABILIZED". THE CONTRACTOR SHALL BE RESPONSIBLE TO ESTABLISH
VEGETATION, NOT SIMPLY APPLY SEED AND MATERIALS.
CONTRACTOR'S RECORD DRAWING
CERTIFICATION STATEMENT
732
53
FOR
ALBEMARLE COUNTY, VIRGINIA
WP0202000042
7132
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VICINITY MAP
SCALE: 1 "=2000 FEET
STORMWATER COMPLIANCE SUMMARY
WATER QUALITY COMPLIANCE - 9VAC25-870-63
ACCORDING TO THE VRRM SPREADSHEET FOR RE -DEVELOPED LANDS, THE SITE MEETS WATER
QUALITY COMPLIANCE REQUIREMENTS BASED ON THE POST -DEVELOPED REDUCTION IN
IMPERVIOUS AREA. THE REQUIRED LOAD REDUCTION FOR THE SITE IS -0.07 LBS/YR
PHOSPHORUS
WATER QUANTITY COMPLIANCE ANALYSIS - 9VAC25-860-66
PROPOSED GRADING PROMOTES SHEET FLOW FROM THE SITE. GENTLE SLOPES ARE PROPOSED AT THE
TOP AND BOTTOM OF THE SITE TO MINIMIZE RUN-OFF VELOCITY AND DISCOURAGE RILL EROSION.
SURFACE ROUGHENING SHOULD BY UTILIZED ON STEEPER SLOPE SECTIONS DURING CONSTRUCTION
OPERATIONS TO MINIMIZE RILL EROSION AND ALLOW VEGETATION ESTABLISHMENT.
CHANNEL PROTECTION (COMPLIANCE UNDER 9VAC25-860-66D):
SINCE ALL FLOWS FROM THE SITE ARE SHEET FLOW AND DESIGN EVENT PEAK FLOWS FROM THE SITE
ARE DECREASED IN THE POST -DEVELOPED CONDITION, CHANNEL PROTECTION COMPLIANCE IS ACHIEVED
IN ACCORDANCE WITH 9VAC25-870-66D AND NO FURTHER ANALYSIS IS REQUIRED.
FLOOD PROTECTION (COMPLIANCE UNDER 9VAC25-870-66D):
SINCE ALL FLOWS FROM THE SITE ARE SHEET FLOW AND DESIGN EVENT PEAK FLOWS FROM THE SITE
ARE DECREASED IN THE POST -DEVELOPED CONDITION, FLOOD PROTECTION COMPLIANCE IS ACHIEVED IN
ACCORDANCE WITH 9VAC25-870-66D AND NO FURTHER ANALYSIS IS REQUIRED.
CONTRACTOR SHALL KEEP ACCURATE RECORDS OF ANY CHANGES SUBSTITUTIONS, ALTERATIONS, VARIATIONS OR UNUSUAL CONDITIONS ENCOUNTERED OR IMPLEMENTED WHILE ENGAGED
ON THIS PROJECT. THESE RECORDS SHALL BE IN THE FORM OF "REDLINES". "REDLINES" SHALL REFER TO THE CONTRACTOR'S HAND ANNOTATIONS USING RED COLORED PEN/PENCIL
TO DEPICT ACTUAL CHANGE, SUBSTITUTION, OR CONDITION.
PRIOR TO CONTRACTOR REQUESTING PARTIAL OR FULL PAYMENT, CONTRACTOR SHALL PROVIDE THE OWNER WITH AN UP-TO-DATE CONTRACTOR'S RECORD DRAWING. SPECIFICALLY,
THIS SET OF PLANS ISSUED TO THE CONTRACTOR AS FINAL CONSTRUCTION DRAWINGS, SHALL BEAR THE "REDLINE" MARKINGS LISTED BELOW AS WELL AS THE CONTRACTOR (AGENT
OR SUPERINTENDENT) SIGNATURE AND CERTIFICATION BELOW:
• REDLINES SHOULD ALWAYS BE ACCURATE NEAT LEGIBLE DATED AND REASONABLY SCALED
• ADD LARGE RED LETTERS TO TITLE SHEET WITH 'CONTRACTOR'S RECORD DRAWING' INCLUDING CONTRACTOR'S NAME, DATE, AND OTHER RELEVANT INFORMATION
• CONTRACTOR'S REPRESENTATIVE OR SUPERINTENDENT SHALL INITIAL EACH SHEET. IF A SHEET HAS NOT BEEN CHANGED AT ALL OR NO MARK HAS BEEN ADDED, LABEL THE
SHEET ONLY 'NO CHANGES'
• IF A SHEET HAS BEEN CHANGED OR MODIFICATIONS HAVE BEEN ADDED, LABEL IT 'REVISED'
• USE WRITTEN EXPLANATION TO DESCRIBE CHANGES. REFER TO SPECIFIC ACTIONS INSTEAD OF REFERENCING CHANGE ORDER NUMBERS OR RELATED DOCUMENTS
• USE CLEAR LETTERING
• NEVER REMOVE OLD VALUES OR DETAILS, JUST REDLINE OR ❑X❑ THROUGH THEM. IF THERE IS NO ROOM FOR THE NEW VALUE, YOU CAN GO TO THE SIDE AND REDLINE THE
REPLACEMENT VALUE.
• PROVIDE THE REDLINE DETAILS OF CHANGES OR ADDITIONAL INFORMATION, INCLUDING BUT NOT LIMITED TO FABRICATION, ERECTION, INSTALLATION, LOCATION, SIZING, MATERIAL,
DIMENSION, ADDITIONS, RELOCATIONS, SUBSTITUTIONS, ETC
• BE SPECIFIC WHEN MAKING NOTES TO UNDERGROUND UTILITIES, SHOWING EXACT LOCATION, DEPTH, AND MATERIAL USED (EXAMPLE: SEWER LATERALS)
• PROVIDE ALL NECESSARY INFORMATION OF CONTRACTOR'S DESIGNED SYSTEMS OR SUBSTITUTIONS
• CROSS OUT ANY PLAN REFERENCE TO QAPPROVED EQUALD AND REPLACE WITH ANY SPECIFIC INFORMATION OF VARIANCE USED DURING THE CONSTRUCTION PROCESS
• ANY CHANGES IN INVERT ELEVATIONS GRADE MODIFICATIONS SLOPES AND RELATED INFORMATION ON PIPING UTILITIES EARTHWORK ETC. SHALL BE REDLINED.
• RECORD ALL UNEXPECTED OBSTRUCTIONS, COMPLICATING FACTORS, UNSUITABLE CONDITIONS FOUND IN THE PROJECT AREA INCLUDING ROCK, UNUSUAL TOPSOIL CONDITIONS,
BURIED DEBRIS ETC.
• ATTACH OR INCLUDE ANY SHOW DRAWINGS OR SUPPLEMENTAL INFORMATION TO THE CONTRACTOR'S RECORD DRAWING
• CHANGES MADE AS A RESULT OF ANY REGULATORY OR OWNER INSPECTION PROCESS
CERTIFICATION STATEMENT:
THIS HAND -MARKED SET OF DRAWINGS HAS BEEN ❑REDLINED❑ TO PROVIDE ACCURATE DETAILED RECORD OF ANY SUBSTANTIVE CHANGES TO THE APPROVED DESIGN DRAWINGS.
ANY ITEM NOT ❑REDLINED❑ ON THIS PLAN SET OR SUBSEQUENT PAGES SHOULD BE CONSIDERED TO BE ❑CONSTRUCTED IN ACCORDANCE WITH THE DESIGN AS SHOWN0.
FOR:
NAME
TITLE
DATE
(CONTRACTOR)
SHEET INDEX
SHEET 1--------- COVER SHEET
SHEET 2--------- EXISTING CONDITIONS
SHEET 3--------- EROSION CONTROL PLAN PHASE I
SHEET 4--------- EROSION CONTROL PLAN PHASE II
SHEET 5---------- EROSION CONTROL NARRATIVE
SHEET 6---------- NOTES AND DETAILS
SHEET 7---------- VSMP
GENERAL CONSTRUCTION NOTES
PLAN NOTES
1. THE OWNER WILL DESIGNATE A PROJECT MANAGER TO ACT AS OWNER'S REPRESENTATIVE DURING THIS PROJECT. CONTRACTOR
SHALL REPORT DIRECTLY TO THIS PROJECT MANAGER UNLESS OTHERWISE DIRECTED.
2. THE DESIGNER HAS CONDUCTED NO STUDIES DESIGNED TO DISCOVER THE PRESENCE OF ANY HAZARDOUS SUBSTANCES ON THIS
PROPERTY AND ASSUMES NO RESPONSIBILITY OR LIABILITY RESULTING FROM THE PRESENCE ON ANY SUCH SUBSTANCE.
3. THE CONTRACTOR SHALL OBTAIN ALL PERMITS REQUIRED FOR THIS WORK AND PAY ALL ASSOCIATED FEES. THIS INCLUDES ALL
NECESSARY PERMITS, INSPECTIONS, BONDS, AND OTHER APPROVAL RELATED ITEMS IN ACCORDANCE WITH THESE PLANS AS WELL AS
LOCAL, STATE, AND FEDERAL POLICIES.
4. PAVED OR RIP RAP DITCH MAY BE REQUIRED WHEN, IN THE OPINION OF THE RESIDENT ENGINEER OR HIS DESIGNEE, IT IS DEEMED
NECESSARY IN ORDER TO STABILIZE A DRAINAGE CHANNEL.
5. ALL TRAFFIC CONTROL SIGNS SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES, LATEST
EDITION, AND SHALL BE PROVIDED BY THE CONTRACTOR.
6. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY
(29 CFR PART 1926).
7. ALL MATERIALS AND WORKMANSHIP SHALL CONFORM TO THE VDOT ROAD AND BRIDGE STANDARDS (LATEST EDITION) AND THE VDOT
ROAD AND BRIDGE SPECIFICATIONS (LATEST EDITION).
8. CONTRACTOR SHALL PROVIDE NECESSARY REFLECTORS, BARRICADES, TRAFFIC CONTROL DEVICES AND/OR FLAG PERSONS TO
ENSURE THE SAFETY OF ITS WORKERS AND THE PUBLIC. TRAFFIC CONTROL SHALL BE DONE WITH THE KNOWLEDGE AND
PERMISSION FROM THE STREET'S OWNER AND AUTHORITY.
9. CONTRACTOR SHALL MAINTAIN SAFE AND PASSABLE PUBLIC ACCESS TO PROPERTIES AND THE PUBLIC RIGHT-OF-WAY DURING
CONSTRUCTION. ACCESS FOR EMERGENCY VEHICLES SHALL BE MAINTAINED AT ALL TIMES.
EARTHWORK, DRAINAGE, & SITE CONDITIONS
1. EXCEPT AS OTHERWISE SHOWN ON THE PLANS, ALL CUTS AND FILLS SHALL MATCH EXISTING SLOPES OR BE NO GREATER THAN
2:1.
2. UNLESS OTHERWISE NOTED ON THE PLANS OR IN THE SPECIFICATIONS, ALL FILL MATERIALS SHALL BE COMPACTED TO 95% OF
THEORETICAL MAXIMUM DENSITY AS DETERMINED BY AASHTO T-99 METHOD A, WITHIN PLUS OR MINUS 2% OF OPTIMUM MOISTURE,
FOR THE FULL WIDTH AND DEPTH OF THE FILL.
3. ALL GRADING AND IMPROVEMENTS TO BE CONFINED TO THE PROJECT AREA UNLESS OTHERWISE INDICATED.
4. ALL MATERIALS AND INSTALLATION DETAILS SHALL CONFORM TO APPLICABLE LOCAL ORDINANCES AND VDOT ROAD & BRIDGE
STANDARDS (LATEST EDITION) UNLESS OTHERWISE STATED WITHIN THE PLANS..
5. ANY UNUSUAL OR UNANTICIPATED SUBSURFACE CONDITIONS SHALL BE IMMEDIATELY REPORTED TO THE ENGINEER.
6. CONTRACTOR SHALL VERIFY ALL DIMENSIONS, ELEVATIONS AND LOCATIONS PRIOR TO BEGINNING WORK, AND IMMEDIATELY NOTIFY
THE PROJECT MANAGER IN THE EVENT THERE ARE ANY DISCREPANCIES BETWEEN SUCH CONDITIONS AND THOSE SHOWN ON THE
PLANS AND SPECIFICATIONS.
7. IN THE EVENT THAT GRADING AS SHOWN ON THE PLANS IS NOT FEASIBLE, CONTRACTOR SHALL ADVISE THE PROJECT MANAGER AND
ENGINEER BEFORE FINAL GRADING COMPLETION FOR ADVICE AND CONSENT.
GENERAL CONSTRUCTION NOTES FOR EROSION AND SEDIMENT CONTROL PLANS
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 7:00 AM TO 9:00 PM.
15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAT 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 OF 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 80 LBS/100SSF. ALTERNATIVES ARE SUBJECT
TO BE 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 90 LBS/1000SSF. INCORPORATED INTO THE TOP 4-6 INCHES
OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000 LBS ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 180 LBS 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 80 LBS/10OSSF. ALTERNATIVES ARE SUBJECT TO BE 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 REPAIRED 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 17-207B).
23. THESE PLANS DO NOT GUARANTEE THE EXISTENCE, NON-EXISTENCE OR LOCATION OF UTILITIES. CONTRACTOR SHALL VERIFY THE EXISTENCE AND LOCATION OR THE NON-EXISTENCE OF UTILITIES. AT LEAST 48 HOURS PRIOR
TO ANY EXCAVATION OR CONSTRUCTION, CONTRACTOR SHALL NOTIFY MISS UIILIIY (1-800-552-7001) AND/OR THE RESPECTIVE UTILITY COMPANIES FOR GAS, WATER, SEWER, POWER, PHONE AND CABLE. CONTRACTOR SHALL
TIMELY ARRANGE TO HAVE THE VARIOUS UTILITIES LOCATED, AND TO HAVE THEM REMOVED OR RELOCATED, OR TO DETERMINE THE METHOD OF PROTECTION ACCEPTABLE TO THE RESPECTIVE OWNER, IF THE METHOD OF
PROTECTION IS NOT OTHERWISE SPECIFIED. CONTRACTOR SHALL CONDUCT ITS WORK IN THE VICINITY OF EXISTING UTILITIES IN ACCORDANCE WITH THE RESPECTIVE UTILITY'S RULES AND REGULATIONS. ANY COST INCURRED FOR
REMOVING, RELOCATING OR PROTECTING UTILITIES SHALL BE BORNE BY CONTRACTOR UNLESS INDICATED OTHERWISE. CONTRACTOR SHALL EXCAVATE TO LOCATE BURIED UTILITIES FAR ENOUGH IN ADVANCE OF ITS WORK TO
ALLOW FOR HORIZONTAL AND /OR VERTICAL ADJUSTMENTS TO ITS WORK AND/OR THE UTILITIES. NO ADJUSTMENT IN COMPENSATION OR SCHEDULE WILL BE ALLOWED FOR DELAYS RESULTING FROM CONTRACTOR'S FAILURE TO
CONTACT AND COORDINATE WITH UTILITIES.
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FILE:
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SHEET:
02 OF 7
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NOTE.- CONTRACTOR TO ENSURE FILL SLOPES
APPROXIMATE NATURAL CONTOURS /N ORDER TO
PROMOTE A NATURAL APPEARANCE
APPROXIMATE VOLUME OF FILL REQUIRED: 15,000 CY
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TEMPORARY SEDIMENT TRAP CALCULATIONS
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Drainage Area= 1.90 acres
STAGE -STORAGE REPORT
Design Volumes:
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ELEV(FT) STORAGE(CY) STORAGE(CF)
AREA(SF)
1
%
Wet Storage-
383 0 0
1563
1 1 /
Minimum Volume Req'd. = 67 cy * 1.90 acres = 128 cy
384 66 1761
2000
Available Basin Volume Prov'd. = 153 cy @ 385.00
I / /
Dry Storage-
385 153 4135
2350
Minimum Volume Req'd. = 67 cy * 1.90 acres = 128 cy
386 240 6489
2707
Available Basin Volume Prov'd. = 151 cy @ 387.00
387 309 8213
3250
Design Elevations:
388 479 12938
3741
Top of Berm = 388.00
Design Dimensions:
Berm Width = 4.5'+ (utilize ex. bank)
Weir Elev = 385.00
Bottom Length X Width - 99' X 18'
Top Length X Width - 145' X 30'
Weir Width = 1.90 acres * 6 = 11.4'
Wet Storage Bank Slope: 1:1
/
Floor Elev = 363.00
Sediment Cleanout Elev = 383.5'
Dry Storage Bank Slope: 2:1
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SEDIMENT TRAP OUTLET - SEE
DETAIL THIS SHEET
ND FLOOR SEDIMENT AND
DIMENT TRAP FLOOR SEDIMENT TO
DRIED IN TOPSOIL STOCKPILE
EA AND SPREAD EVENLY OVER
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N/F BEDARF, DEREK ERWIN
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TO THOMAS JEFFERSON PARKWAY
INTERSECTION (STATE ROUTE 53)
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WEIR PRIOR TO
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WEIR OUTLET CAN BE
COMPLETED FOLLOWING
DEWATERING OPERATIONS
OW
DEWATERI G BAG
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EROSION & SEDIMENT CONTROL LEGEND
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DEWATERING FLOW RATE CALCULATION
PUMP MAX FLOW RATING: 170GPM*
170GPM * 0.1336 CUFT/GAL * 1MIN160SEC = 0.38CFS
PUMP PEAK FLOW RATE NOT EXPECTED TO PRODUCE
EROSIVE VELOCITIES OR EXCEED CAPACITY OF DOWNSTREAM
CHANNEL. (PUMP FLOW RATE IS LESS THAN 5% OF EXISTING
1 YEAR PEAK FLOW TO CHANNEL - SEE SHEET 7)
C E 3.02 o CONSTRUCTION ENTRANCE ST El ST SEDIMENT TRAP
D3.05 SILT FENCE TS 3.31 TS TEMPORARY SEEDING
DV F
..09 TEMPORARY DIVERSION DIKE PS 3.32 PS PERMANENT SEEDING
SR 3.18 SR SURFACE ROUGHENING DC 3.39 DC DUST CONTROL
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FILE:
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SHEET:
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SILT FENCE TS H
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TEMPORARY DIVERSION DIKE PS 3.32 PS PERMANENT SEEDING
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DATE:
8-25-2020
SCALE:
AS SHOWN
JOB:
GOBBLERS RIDGE
FILE:
19.0896
SHEET:
04 OF 7
I,
EROSION & SEDIMENT CONTROL NARATIVE
PRIOR TO CONSTRUCTION
1. OWNER SHALL POST SURETY BONDS FOR CONSTRUCTION, EROSION & SEDIMENT
CONTROL.
2. CONTRACTOR SHALL OBTAIN PERMITS TO WORK WITHIN STATE RIGHT-OF-WAY (VDOT
LAND -USE PERMIT). BONDING FOR WORK WITHIN THE VDOT RIGHT-OF-WAY MAY BE
REQUIRED TO OBTAIN THE PERMIT.
3. CONTRACTOR SHALL COORDINATE WITH OWNER TO OBTAIN VSMP PERMITS, AS REQUIRED
BY THE STATE DEPARTMENT OF ENVIRONMENTAL QUALITY (DEQ).
4. CONTRACTOR SHALL OBTAIN LAND DISTURBANCE PERMIT FROM THE COUNTY OF
ALBEMARLE PRIOR TO BEGINNING CONSTRUCTION.
5. A PRE -CONSTRUCTION MEETING WITH THE ENGINEER, THE CERTIFIED LAND DISTURBER,
AND THE ENVIRONMENTAL INSPECTOR MAY ALSO BE REQUIRED. ALLOW 72 HOURS FOR
COORDINATION AND SCHEDULING OF PRE -CONSTRUCTION MEETING.
PROJECT DESCRIPTION
THE PURPOSE OF THIS OF THIS PLAN IS TO FILL AN EXISTING POND ON TMP
93-15. THE CONDITION OF THE POND OUTLET HAS DETERIORATED AND THE POND
SERVES NO OFFICIAL PURPOSE FOR STORMWATER QUALITY OR QUANTITY. THE FILL
OPERATION WILL EXTEND TO THE CONTRIBUTING DRAINAGE AREA WITHIN THE SUBJECT
PROPERTY IN ORDER TO PROMOTE SHEET FLOW OFF THE PROPERTY. AN ESTIMATED
15,000 CY OF IMPORT IS REQUIRED TO COMPLETE THIS PROJECT.
ADJACENT AREAS
THE PARCEL IS SURROUNDED BY ADJACENT RESIDENTIAL PARCELS CONSISTING OF MODERATE
TO STEEP SLOPING MAINTAINED GRASS, OPEN PASTURE, AND WOODED AREA.
SOILS
51B-BUGLEY CHANNERY SILT LOAM. (2% TO 7% SLOPES)
DEEP, SLIGHT SLOPING AND SOMEWHAT EXCESSIVELY DRAINED. STARTING AT SURFACE LAYER
TO SUBSTRATUM, SOIL LAYERS CONSIST OF CHANNERY SILT LOAM, VERY CHANNERY SILT
LOAM, AND BEDROCK. PERMEABILITY IS MODERATE WHILE AVAILABLE WATER CAPACITY IS VERY
LOW TO HIGH. SURFACE RUNOFF IS MEDIUM. HAZARD OF EROSION IS SLIGHT. HYDROLOGIC
SOIL GROUP D.
51D-BUGLEY CHANNERY SILT LOAM. (15% TO 25% SLOPES)
DEEP, STEEP SLOPING AND EXCESSIVELY DRAINED. STARTING AT SURFACE LAYER TO
SUBSTRATUM, SOIL LAYERS CONSIST OF CHANNERY SILT LOAM, VERY CHANNERY SILT LOAM,
AND BEDROCK. PERMEABILITY IS LOW WHILE AVAILABLE WATER CAPACITY IS VERY LOW.
SURFACE RUNOFF IS MEDIUM. HAZARD OF EROSION IS SLIGHT.
CRITICAL AREAS
THERE ARE CRITICAL SLOPES AS SHOWN ON SHEETS 2-4. THESE SLOPES MAY NOT BE
DISTURBED DUE TO AN INCREASE POTENTIAL FOR EROSION AND SEDIMENTATION..
STRUCTURAL PRACTICES
6. TEMPORARY CONSTRUCTION ENTRANCE (3.02) - A TEMPORARY CONSTRUCTION ENTRANCE
SHALL BE INSTALLED AT SITE ENTRANCE OFF OF OLD TRAIL DRIVE.
7. SILT FENCE BARRIER (3.05) - SILT FENCE BARRIERS WILL BE INSTALLED TO FILTER
RUNOFF FROM SHEET FLOW AS INDICATED ON THE EROSION AND SEDIMENT CONTROL
PLAN.
VEGETATIVE PRACTICES
8. TOPSOILING & STOCKPILING (3.30J - TOPSOIL WILL BE STRIPPED FROM AREAS TO BE
GRADED AND STOCKPILED FOR LATER USE. STOCKPILES ARE TO BE STABILIZED WITH
TEMPORARY VEGETATION OR TO HAVE SILT FENCE INSTALLED ALONG THE LOWER
PERIMETER TO PROTECT DOWNSTREAM AREAS.
9. TEMPORARY SEEDING (3.31) - AREAS NOT BROUGHT TO FINAL GRADE FOR A PERIOD OF
MORE THAN 14 DAYS SHALL BE STABILIZED WITH A TEMPORARY SEED MIXTURE
ACCEPTABLE FOR THAT TIME OF YEAR. CRIMPING, PUNCH ROLLER -TYPE ROLLERS, OR
TRACK WALKING MAY BE USED TO INCORPORATE STRAW MULCH INTO THE SOIL ON
SLOPES IF STRAW IS TO BE USED.
10. PERMANENT SEEDING (3.32) - AREAS BROUGHT TO FINAL GRADE OR THOSE
CONSTRUCTION AREAS THAT WILL REMAIN DORMANT FOR YEAR OR MORE SHALL BE
STABILIZED WITH A PERMANENT SEED MIXTURE ACCEPTABLE TO THAT TIME OF YEAR.
PREPARE SURFACE WITH APPROVED TREATMENT AND ADDITIVES PRIOR TO APPLYING SEED.
11. DUST CONTROL (3,39) - DUST CONTROL METHODS MUST BE USED TO REDUCE THE
AMOUNT OF AIRBORNE DUST DURING ALL PHASES OF CONSTRUCTION WHERE SOIL IS
EXPOSED OR DISTURBED.
MANAGEMENT STRATEGIES
12. THE CONSTRUCTION ENTRANCE AND PERIMETER EROSION CONTROL MEASURES SUCH AS
TREE PROTECTION AND SILT FENCE SHALL BE INSTALLED AS THE FIRST STEP OF
DISTURBANCE.
13. TEMPORARY SEEDING OR OTHER STABILIZATION METHODS, SUCH AS BASE AGGREGATE
WILL FOLLOW IMMEDIATELY AFTER REACHING FINAL GRADES.
14. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS
MAINTAINED. AREAS SHOULD BE FERTILIZED AND RE -SEEDED AS NEEDED TO ESTABLISH
GROWTH.
15. THE JOB SUPERINTENDENT SHALL BE RESPONSIBLE FOR THE INSTALLATION AND
MAINTENANCE OF ALL EROSION AND SEDIMENT CONTROL PRACTICES.
16. AFTER BEING NOTIFIED BY THE EROSION AND SEDIMENT CONTROL ADMINISTRATOR, THE
TEMPORARY EROSION AND SEDIMENT CONTROLS CAN BE CLEANED UP OR REMOVED, AND
THE SEDIMENT TRAPS CAN BE FILLED IN AND SEEDED, THEREBY REDIRECTING DRAINAGE
TO THE PERMANENT FACILITIES.
PERMANENT STABILIZATION
SEEDING SHALL BE DONE WITH KENTUCKY 31 TALL FESCUE IN ACCORDANCE TO STANDARD
AND SPECIFICATION 3.32, PERMANENT SEEDING, OF THE VIRGINIA EROSION AND SEDIMENT
CONTROL HANDBOOK. ANY FERTILIZER AND LIME APPLICATIONS SHALL BE IN ACCORDANCE
WITH SOIL TEST RESULTS. ALL SEEDED AREAS WILL BE STRAW MULCHED TO PROTECT
AGAINST RILL EROSION AND TO PRESERVE SOIL MOISTURE THAT WILL ENHANCE SEED
GERMINATION. CRIMPING, PUNCH ROLLER -TYPE ROLLERS, OR TRACK WALKING MAY BE USED TO
INCORPORATE STRAW MULCH INTO THE SOIL ON SLOPES IF STRAW IS TO BE USED.
EROSION CONTROL MAINTENANCE
1. IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES SHALL BE CHECKED DAILY
AND AFTER EACH SIGNIFICANT RAINFALL. THE FOLLOWING ITEMS WILL BE CHECKED IN
PARTICULAR:
2. THE CONSTRUCTION ENTRANCE SHALL BE CHECKED DAILY FOR SOIL BUILDUP. IF THE
ENTRANCE BECOMES CLOGGED WITH SOIL AND FAILS TO PREVENT THE TRANSPORTATION
OF SOIL ONTO THE ROADWAY, ADDITIONAL STONE, REPLACEMENT OF STONE, OR A
WASH -RACK MAY BE REQUIRED.
3. SILT FENCE SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND AT LEAST
DAILY DURING PROLONGED RAINFALL. CLOSE ATTENTION SHALL BE PAID TO THE REPAIR
OF DAMAGED SILT FENCE RESULTING FROM END RUNS AND UNDERCUTTING. SHOULD THE
FABRIC ON A SILT FENCE DECOMPOSE OR BECOME INEFFECTIVE PRIOR TO THE END OF
THE EXPECTED USABLE LIFE AND THE BARRIER STILL BE NECESSARY THE FABRIC SHALL
BE REPLACED PROMPTLY. SEDIMENT DEPOSITS SHOULD BE REMOVED AFTER EACH STORM
EVENT. THEY MUST BE REMOVED WHEN DEPOSITS REACH APPROXIMATELY ONE-HALF THE
HEIGHT OF THE BARRIER. ANY SEDIMENT DEPOSITS REMAINING IN PLACE AFTER THE SILT
FENCE IS NO LONGER REQUIRED SHALL BE DRESSED TO CONFORM WITH THE EXISTING
GRADE, PREPARED, AND SEEDED.
4. STORMWATER CONVEYANCE CHANNELS (WHERE APPLICABLE):
4.1. GRASS LINED CHANNELS - DURING THE INITIAL ESTABLISHMENT, GRASS LINED
CHANNELS SHOULD BE REPAIRED IMMEDIATELY AND RE-ESTABLISHED IF NECESSARY.
AFTER GRASS HAS BECOME ESTABLISHED, THE CHANNEL SHOULD BE CHECKED
PERIODICALLY TO DETERMINE IF THE GRASS IS WITHSTANDING FLOW VELOCITIES
WITHOUT DAMAGE. IF THE CHANNEL IS TO BE MOWED, IT SHOULD BE DONE IN A
MANNER THAT IT WILL NOT DAMAGE THE GRASS.
5. ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS
MAINTAINED. AREAS SHOULD BE FERTILIZED AND RE -SEEDED AS NEEDED. IN THE
EVENT THAT THE APPLIED SEEDING FAILS TO TAKE HOLD, BLANKET MATTING SHALL BE
PLACED IN APPROPRIATE AREAS DEEMED NECESSARY BY THE ENGINEER OR EROSION
CONTROL INSPECTOR.
SEQUENCE OF CONSTRUCTION
®,
1. AFTER OBTAINING ALL REQUIRED PERMITS THE CONTRACTOR SHALL COORDINATE A
PRE -CONSTRUCTION MEETING, ALLOWING 72 HOURS FOR ITS COORDINATION.
E.
2.1. SHOULD THE TEMPORARY CONSTRUCTION ENTRANCE NOT BE MAINTAINED PROPERLY F.
OR AN EXCESSIVE AMOUNT OF SOIL FOUND TRACKED ONTO THE PUBLIC ROADWAY
THEN A PAVED CONSTRUCTION ENTRANCE, WATER TANKER TRUCK WITH TWO (2) 17
PRESSURE WASHERS AND A SETTLING AREA MAY BE REQUIRED BY THE EROSION
AND SEDIMENT CONTROL PROGRAM ADMINISTRATOR.
2.2. SILT FENCE SHALL BE INSTALLED ON PERIMETER OF ANY ACTIVE
STAGING/STOCKPILING OPERATIONS WITHIN THE PARCEL.
3.1 INSTALL DOWN SLOPE HALF OF SEDIMENT TRAP OUTLET WEIR IN EXISTING POND BANK;
PUMP POND WATER THROUGH SILT BAG (SEE DETAIL SHEET 6) INTO SEDIMENT TRAP
WEIR 18
3.2. FINISH CONSTRUCTING SEDIMENT TRAP WEIR IN ACCORDANCE WITH PLAN DIMENSIONS
4. CONDUCT FILL OPERATIONS SUCH THAT THE SEDIMENT TRAP DIMENSIONS PER PLAN
REMAIN OPEN TO SERVE AS A SEDIMENT TRAP UNTIL ALL UPSLOPE AREAS ARE
STABILIZED.
5. ONCE GRADING IS COMPLETE, TOPSOIL SHOULD BE REPLACED AND THE SITE SEEDED
AND STRAWED FOR PERMANENT STABILIZATION.
6. ONCE THE SITE IS DEEMED STABILIZED BY THE ALBEMARLE COUNTY ESC INSPECTOR, THE
19
SEDIMENT TRAP MAY BE FILLED AND DIVERSIONS REMOVED PER PHASE II (SHEET 4.)
7. ONCE THE SITE IS DEEMED
3. STOCKPILED TOPSOIL SHALL REMAIN ON THE PROPERTY AT A LOCATION APPROVED BY
ALBEMARLE COUNTY COMMUNITY DEVELOPMENT. INSTALL SILT FENCE AT THE PERIMETER
OF ALL STOCKPILE(S).
4. DENUDED AREAS SHALL DRAIN TO AN APPROVED EROSION CONTROL MEASURE AT ALL A
TIMES DURING CONSTRUCTION.
5. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO ALL 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 B
DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT FOR
LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT
ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR.
6. LIME, FERTILIZE AND APPLY TEMPORARY OR PERMANENT SEEDING TO ALL DENUDED
AREAS IMMEDIATELY AFTER ACHIEVING FINAL GRADES.
7. ALL PERMANENT SLOPES STEEPER THAN 3:1 SHALL RECEIVE STABILIZATION WITH
LANDSCAPING VEGETATION HARDIER THAN GRASS, WHICH WILL NOT REQUIRE MOWING.
8. AFTER SITE IS STABILIZED AND PERMISSION IS OBTAINED FROM THE EROSION CONTROL
INSPECTOR, REMOVE SILT FENCING AND OTHER REMAINING EROSION CONTROL MEASURES.
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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 14 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO
BE LEFT DORMANT FOR MORE THAN ONE YEAR.
CONTRACTOR SHALL ESTABLISH A STABILIZED SITE, AND NOT ALLOW ANY SEDIMENT TO EXIT
THE PROJECT LIMITS.
2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES AND BORROW AREAS SHALL
BE STABILIZED OR PROTECTED WITH SEDIMENT TRAPPING MEASURES. THE APPLICANT IS
RESPONSIBLE FOR THE TEMPORARY PROTECTION AND PERMANENT STABILIZATION OF ALL
SOIL STOCKPILES ON SITE AS WELL AS BORROW AREAS AND SOIL INTENTIONALLY
TRANSPORTED FROM THE PROJECT SITE.
CONTRACTOR TO PROTECT STOCKPILE AREAS WITH SILT FENCE.
3. A 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 AND WILL INHIBIT EROSION.
CONTRACTOR SHALL ESTABLISH A VEGETATIVE COVER ON ALL DENUDED AREAS.
4. SEDIMENT BASINS AND 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.
CONTRACTOR SHALL ESTABLISH THE PERIMETER CONTROLS OF SUPER SILT FENCE AS THE
FIRST STEP OF THE LANDS DISTURBANCE FOR THIS PROJECT.
5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS,
DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION.
CONTRACTOR SHALL INSPECT EROSION CONTROL MEASURES AFTER EACH RAINFALL EVENT.
6. SEDIMENT TRAPS AND SEDIMENT BASINS SHALL BE DESIGNED AND CONSTRUCTED BASED
UPON THE TOTAL DRAINAGE AREA TO BE SERVED BY THE TRAP OR BASIN.
THERE ARE NO SEDIMENT TRAPS OR BASINS PROPOSED.
A. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT TRAP SHALL BE 134 CUBIC YARDS PER
ACRE OF DRAINAGE AREA AND THE TRAP SHALL ONLY CONTROL DRAINAGE AREAS LESS
THAN THREE ACRES.
B. SURFACE RUNOFF FROM DISTURBED AREAS THAT IS COMPRISED OF FLOW FROM DRAINAGE
AREAS GREATER THAN OR EQUAL TO THREE ACRES SHALL BE CONTROLLED BY A
SEDIMENT BASIN. THE MINIMUM STORAGE CAPACITY OF A SEDIMENT BASIN SHALL BE 134
CUBIC YARDS PER ACRE OF DRAINAGE AREA. THE OUTFACE SYSTEM SHALL, AT A MINIMUM,
MAINTAIN THE STRUCTURAL INTEGRITY OF THE BASIN DURING A 25-YEAR STORM OF
24-HOUR DURATION. RUNOFF COEFFICIENTS USED IN RUNOFF CALCULATIONS SHALL
CORRESPOND TO A BARE EARTH CONDITION OR THOSE CONDITIONS EXPECTED TO EXIST
WHILE THE SEDIMENT BASIN IS UTILIZED.
7. CUT AND FILL SLOPES SHALL BE DESIGNED AND CONSTRUCTED IN A MANNER THAT WILL
MINIMIZE EROSION. SLOPES THAT ARE FOUND TO BE ERODING EXCESSIVELY WITHIN ONE
YEAR OF PERMANENT STABILIZATION SHALL BE PROVIDED WITH ADDITIONAL SLOPE
STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED.THERE ARE NO PROPOSED
CUT OR FILL SLOPES. HOWEVER, THE CONTRACTOR IS TO RESTORE THE PROJECT AREA
TO EXISTING GRADE. IF THE AREAS WITH NATURALLY STEEP SLOPES ARE FOUND TO BE
ERODING EXCESSIVELY AFTER ONE YEAR CONTRACTOR IS TO PROVIDE ADDITIONAL SLOPE
STABILIZING MEASURES UNTIL THE PROBLEM IS CORRECTED.
8. CONCENTRATED RUNOFF SHALL NOT FLOW DOWN CUT OR FILL SLOPES UNLESS
CONTAINED WITHIN AN ADEQUATE TEMPORARY OR PERMANENT CHANNEL, FLUME OR
SLOPE DRAIN STRUCTURE. MAXIMIZE SHEETFLOW AND GROUNDWATER INFILTRATION
9. WHENEVER WATER SEEPS FROM A SLOPE FACE ADEQUATE DRAINAGE OR OTHER
PROTECTION SHALL BE PROVIDED.CONTRACTOR TO NOTIFY ENGINEER AND COUNTY
EROSION CONTROL INSPECTOR.
10. ALL STORM SEWER INLETS THAT ARE MADE OPERABLE DURING CONSTRUCTION SHALL BE
PROTECTED SO THAT SEDIMENT -LADEN WATER CANNOT ENTER THE CONVEYANCE SYSTEM
WITHOUT FIRST BEING FILTERED OR OTHERWISE TREATED TO REMOVE SEDIMENT.THERE
ARE NO STORM SEWER INLETS PROPOSED.
11. 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 RECEIVING CHANNEL.THERE ARE NO STORMWATER CONVEYANCE CHANNELS OR PIPES
PROPOSED.
12. 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. NON -ERODIBLE
MATERIAL SHALL BE USED FOR THE CONSTRUCTION OF CAUSEWAYS AND COFFERDAMS.
EARTHEN FILL MAY BE USED FOR THESE STRUCTURES IF ARMORED BY NON -ERODIBLE
COVER MATERIALS. CONTRACTOR SHALL FOLLOW THE VESCH CHAPTER 3.25 UTILITY STREAM
CROSSING REQUIREMENTS FOR THE TWO INTERMITTENT STREAM CROSSINGS.
13. 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 NON -ERODIBLE MATERIAL SHALL BE PROVIDED.CONTRACTOR SHALL
FOLLOW THE VESCH CHAPTER 3.25 UTILITY STREAM CROSSING REQUIREMENTS FOR THE
TWO INTERMITTENT STREAM CROSSINGS.
14. ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS PERTAINING TO WORKING IN
OR CROSSING LIVE WATERCOURSES SHALL BE MET.CONTRACTOR SHALL FOLLOW FOLLOW
ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS FOR THE TWO INTERMITTENT
STREAM CROSSINGS.
15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER
WORK IN THE WATERCOURSE IS COMPLETED.CONTRACTOR SHALL FOLLOW THE VESCH
CHAPTER 3.25 UTILITY STREAM CROSSING REQUIREMENTS FOR THE TWO INTERMITTENT
STREAM CROSSINGS.
16. UNDERGROUND UTILITY LINES SHALL BE INSTALLED IN ACCORDANCE WITH THE FOLLOWING
STANDARDS IN ADDITION TO OTHER APPLICABLE CRITERIA:
A. NO MORE THAN 500 LINEAR FEET OF TRENCH MAY BE OPENED AT ONE TIME.
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.
MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER
TO MINIMIZE EROSION AND PROMOTE STABILIZATION.
RE -STABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THIS CHAPTER.
APPLICABLE SAFETY REQUIREMENTS SHALL BE COMPLIED WITH.CONTRACTOR TO ADHERE TO
THE APPLICABLE STANDARD FOR PRIVATE AND PUBLIC UTILITY INSTALLATION.
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. THIS
PROVISION SHALL APPLY TO INDIVIDUAL DEVELOPMENT LOTS AS WELL AS TO LARGER
LAND -DISTURBING ACTIVITIES.CONTRACTOR SHALL MAKE PROVISIONS TO KEEP ADJACENT
ROADS CLEAN FROM SOIL BUILD-UP.
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 VESCP AUTHORITY. TRAPPED
SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF
TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER
EROSION AND S EDI M ENTATION. CONTRACTOR SHALL STABILIZE SITE, AND OBTAIN INSPECTOR
APPROVAL PRIOR TO REMOVING EC MEASURES. UPON APPROVAL OF THE ENVIRONMENTAL
INSPECTOR, INSTALL INFILTRATION AREAS AND CONNECT ROOF DRAINS.
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 IN ACCORDANCE WITH THE FOLLOWING
STANDARDS AND CRITERIA. STREAM RESTORATION AND RELOCATION PROJECTS THAT
INCORPORATE NATURAL CHANNEL DESIGN CONCEPTS ARE NOT MAN-MADE CHANNELS AND
SHALL BE EXEMPT FROM ANY FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR
NATURAL OR MAN-MADE CHANNELS:THIS PROJECT DOES NOT INCLUDE ANY ADDITIONAL
IMPERVIOUS SURFACES AND THE PROJECT AREA WILL BE RESTORED TO ITS EXISTING
CONIDTIONS.THEREFORE WILL NOT PRODUCE ANY ADDITIONAL STORMWATER RUNOFF.
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 OUTFACE OF THE PIPE
OR PIPE SYSTEM SHALL BE PERFORMED.
ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE VERIFIED USING THE VSMP CHANNEL
PROTECTION CRITERIA. STORMWATER DISCHARGES ARE CLASSIFIED INTO ONE OF THREE
TYPES OF CHANNEL.
(1) "MANMADE STORMWATER CONVEYANCE SYSTEM" MEANS A PIPE, DITCH,
VEGETATED SWALE, OR OTHER STORMWATER CONVEYANCE SYSTEM CONSTRUCTED BY
MAN EXCEPT FOR RESTORED STORMWATER CONVEYANCE SYSTEMS OR,
(A) THE MANMADE STORMWATER CONVEYANCE SYSTEM SHALL CONVEY THE
POST -DEVELOPMENT PEAK FLOW RATE FROM THE TWO-YEAR EVENT WITHOUT
CAUSING EROSION OF THE SYSTEM DETENTION OF THE STORMWATER OR
DOWNSTREAM IMPROVEMENTS MAY BE INCORPORATED INTO THE APPROVED
LAND -DISTURBING ACTIVITY TO MEET THIS CRITERIA AT THE DISCRETION OF THE
STORMWATER PROGRAM ADMINISTRATIVE AUTHORITY.
(B) THE PEAK DISCHARGE REQUIREMENTS FOR CONCENTRATED STORMWATER FLOW
TO NATURAL STORMWATER CONVEYANCE SYSTEMS SHALL BE MET.
QDEVELOPED <= I.F. * (QPRE-DEV. * RVPRE-DEV.) / RVDEVELOPED
UNDER NO CONDITION SHALL QDEVELOPED > Q PRE-DEV.
NOR SHALL QDEVELOPED BE REQUIRED TO BE LESS THAN THAT
QFOREST * RVPRE-DEV.)/RVDEVELOPED
OR IN ACCORDANCE WITH ANOTHER METHODOLOGY THAT IS DEMONSTRATED BY
THE VSMP AUTHORITY TO ACHIEVE EQUIVALENT RESULTS AND IS APPROVED BY
THE BOARD.
(2) "NATURAL STORMWATER CONVEYANCE SYSTEM" MEANS THE MAIN CHANNEL OF
A NATURAL STREAM AND THE FLOOD -PRONE AREA ADJACENT TO THE MAIN
CHANNEL OR,
(3) "RESTORED STORMWATER CONVEYANCE SYSTEM" MEANS A STORMWATER
CONVEYANCE SYSTEM THAT HAS BEEN DESIGNED AND CONSTRUCTED USING
NATURAL CHANNEL DESIGN CONCEPTS. RESTORED STORMWATER CONVEYANCE
SYSTEMS INCLUDE THE MAIN CHANNEL AND THE FLOOD -PRONE AREA ADJACENT TO
THE MAIN CHANNEL.
(A) THE DEVELOPMENT SHALL BE CONSISTENT, IN COMBINATION WITH OTHER
STORMWATER RUNOFF, WITH THE DESIGN PARAMETERS OF THE RESTORED
STORMWATER CONVEYANCE SYSTEM THAT IS FUNCTIONING IN ACCORDANCE WITH
THE DESIGN OBJECTIVES.
(B) THE PEAK DISCHARGE REQUIREMENTS FOR CONCENTRATED STORMWATER FLOW
TO NATURAL STORMWATER CONVEYANCE SYSTEMS SHALL BE MET. SEE
19(B)(1)(B).
Sec. 5.1.28 - Borrow, fill or waste areas.
a. Each borrow, fill or waste area shall be subject to the following:
1. Each active borrow, fill or waste area shall be shaped and sloped so that no undrained pockets or stagnant pools of water are
created to the maximum extent reasonably practicable as determined by the program authority. All undrained pockets and stagnant
pools of water resulting from drainage shall be treated as required by the Virginia Department of Health to eliminate breeding places
for mosquitoes and other insects.
2. No fill or waste area shall be located either within the flood hazard overlay district, except as authorized by section 30.3 of this
chapter, or in any stream buffer area as defined by Chapter 17 of the Code of Albemarle. (Amended 10-3-01; 7-3-02)
3. Each fill or waste area shall be only for the disposal of soil or inert materials. The disposal of any other materials in a fill or
waste area is prohibited.
4. Each borrow, fill or waste area shall be reclaimed within seven days of completion of the borrow, fill or waste activity, or such
later time authorized by the program authority for reclamation activities of a seasonal nature. Reclamation shall include, but not be
limited to, restoring the area so that it approximates natural contours; shaping and sloping the area to satisfy the requirements of
subsection (a)(1); covering the area with clean fill to a minimum depth of two feet in order to allow for permanent stabilization and
reclamation; and establishing a permanent vegetative ground cover; provided that the program authority may reduce the minimum
depth of clean fill to one foot if the area is unlikely to be redeveloped.
5. The zoning administrator, or the program authority for those borrow, fill or waste areas subject to subsection (b), may require the
owner to submit a reasonable performance bond with surety, cash escrow, letter of credit, any combination thereof, or such other
legal arrangement acceptable to the county attorney, to ensure that measures could be taken by the county or the program
authority at the owner's expense should he fail, after notice is given to perform required reclamation work specified in the notice.
The amount of the bond or other surety shall be based on unit pricing for new public or private sector construction in Albemarle
County, Virginia, and a reasonable allowance for estimated administrative costs and inflation which shall not exceed 25 percent of the
estimated cost to initiate and complete the reclamation of the borrow, fill or waste area, and to comply I with all other terms and
conditions of the plan or narrative required by subsection (b). If reclamation work is required to be taken by the county or the
program authority upon the failure of the owner to do so, the county or the program authority may collect the reasonable cost of
the work directly from the owner, to the extent that the cost exceeds the unexpended or unobligated amount of the surety. Within
60 days after the reclamation work is completed and inspected and approved by the county engineer, the bond or other surety, or
any unexpended or unobligated portion thereof, shall be refunded to the owner.
b. If the aggregate area of a borrow, fill or waste activity will be greater than 10,000 square feet, then, as part of any permit issued
pursuant to section 17-207 of the Code of Albemarle, the program authority shall first approve a plan or a narrative for such activity
that satisfies the requirements of subsection (a) and the following:
1. All inert materials shall be transported in compliance with section 13-301 of the Code of Albemarle. Before a transporting vehicle
leaves the parcel or parcels on which the borrow, fill or waste area is located, it shall be cleaned so that no inert materials outside
of the vehicle's load -bed can be deposited on a public street.
2. The borrow, fill or waste area and the access roads thereto shall be treated or maintained to prevent dust or debris from blowing
or spreading onto adjacent properties or public streets. Depending on the anticipated intensity and duration of the activity and the
character of the development of adjoining properties, the program authority may require setback, fencing and landscaping
requirements as deemed appropriate, but which shall not exceed the requirements of sections 30.4.6, 30.4.7 and 30.4.9 of this
chapter.
3. Borrow, fill or waste activity involving industrial -type power equipment shall be limited to the hours of 7:00 a.m. to 9:00 p.m.,
except in cases of a public emergency declared pursuant to section 2-1003 of the Code of Albemarle.
4. Borrow, fill or waste activity shall be conducted in a safe manner that maintains lateral support, in order to minimize any hazard
to persons, physical damage to adjacent land and improvements, and damage to any public street because of slides, sinking, or
collapse.
5. The placement of fill or waste shall be completed within one year of its commencement except for reclamation activities and an
Y � Y
other activities associated with the final stabilization of the area. The program authority may extend the date of completion upon the
written request of the applicant, demonstrating that factors beyond the control of the applicant prevented the completion within the
one-year period. The program authority may then extend the permit for a period of time that, in its sole discretion, is determined
adequate to complete the work.
6. In lieu of a plan or narrative, the program authority may accept a contractual agreement between the Virginia Department of
Transportation and its contractor for a public road project; provided that the program authority determines that the agreement
satisfies at least to an equivalent extent the requirements and intent of this section.
(§ 5.1.28, 7-6-83; Ord. 01�18(6) 10-3-01; Ord. 02-18(5) 7-3-02)
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DESIGNED BY:
JLF/CPO
DRAWN BY:
JLF/CPO
CHECKED BY:
'IT
DATE:
8-25-2020
SCALE:
AS SHOWN
JOB:
GOBBLERS RIDGE
FILE:
19.0896
SHEET:
05 OF 7
Frr
PERMANENT SEEDING MIXTURES FOR
Ps THE PIEDMONT AREA
TABLE 25
TOTAL LBS. PER ACRE
MINIMUM CARE LAWN - COMMERCIAL OR RESIDENTIAL
175-200 LBS.
KENTUCKY 31 OR TURF -TYPE TALL FESCUE
95-100%
IMPROVED PERENNIAL RYE GRASS
0-5%
KENTUCKY BLUEGRASS
0-5%
HIGH MAINTENANCE LAWN
200-250 LBS.
- KENTUCKY 31 OR TURF -TYPE TALL FESCUE
100%
GENERAL SLOPE (3:1 OR LESS)
- KENTUCKY 31 FESCUE
128 LBS.
- RED TOP GRASS
2 LBS.
- SEASONAL NURSE CROP*
20 LBS.
LOW -MAINTENANCE SLOPE (STEEPER THAN 3:1)
- KENTUCKY 31 FESCUE
108 LBS.
- RED TOP GRASS
2 LBS.
- SEASONAL NURSE CROP*
20 LBS.
- CROWN VETCH**
20 LBS.
TOTAL150LBS.
*USE SEASONAL NURSE CROP IN ACCORDANCE WITH SEEDING DATES AS STATED
BELOW:
FEBRUARY 16TH THROUGH APRIL 30TH............
ANNUAL RYE
MAY 1 ST THROUGH AUGUST 15TH ................
FOXTAIL MILLET
AUGUST 16TH THROUGH OCTOBER 31ST...........
ANNUAL RYE
NOVEMBER 1ST THROUGH FEBRUARY 15TH ........ANNUAL
RYE
*** SUBSTITUTE SERICEA LESPEDEZA FOR CROWNVETCH EAST OF FARMVILLE, VA
(MAY THROUGH SEPTEMBER USE HULLED SERICEA,
ALL OTHER PERIODS, USE
UNHULLED SERICEA.) IF FLATPEA IS USED IN LIEU OF CROWNVETCH, INCREASE
RATE TO 30 LBS./ACRE. ALL LEGUME SEED MUST BE
PROPERLY INNOCULATED.
WEEPING LOVEGRASS MAY BE ADDED TO ANY SLOPE OR LOW MAINTENANCE MIX
DURING WARMER SEEDING PERIODS; ADD 10- 20 LBSJACRE IN MIXES.
PERMANENT SEEDING FERTILIZATION
Ps AND MAINTENANCE
TABLE 24
Maintenance Fertilization for Permanent Seedings
Use Soil Test Recommendation or Rates Shown Below
Seeding Mixture
Formulation
Lbs. per
Lbs. per
Time
Mowing
Acre
1000 sf
Tall fescue makes
10-10-10
500
11.5
Yearly, or as
*Not closer than 3" if
up 70% or more
or
400
9.2
needed fall
occasional mowing is
of cover.
30-10-10
desired.
Spring the year
Crownvetch
Service lespedeza
0-20-0
400
9.2
following
establishment
Birdsfoot trefoil
and every 4-5
years thereafter.
Fairly uniform
Fall the year
Not required. not closer
stand of Tall
following
than 4" if occasional
Tescue &Service
5-10-10
500
11.5
establish- ment
mowing is desired, and
lespedeza, or
and every 4-5
then in fall after seed
Birdsfoot Trefoil.
years thereafter.
has matured.
Weeping
Spring the year
Not required. not closer
Lovegrass &
following
than 4" if occasional
Service lespedeza
5-10-10
500
11.5
establishment
mowing is desired, and
fairly uniform plant
and every 3-4
fall after sericea has
distribution
years thereafter.
matured.
Red & chewings
20-10-10
250
5.8
September, 30
Mow no closer than 2"
for red fescue and Ky
fescue, Kentucky
days later
December, May
blue rass; and closer
9
blue rass, hard
9
20-10-10
100
23
20-June-30,if
than 3"for fescue.
fescue mixture:
.
needed.
TEMPORARY SEEDING MIXTURES FOR
Ts THE PIEDMONT AREA
TABLE 26
TEMPORARY SEEDINGS BY RATES, DEPTHS, AND DATES
Seeding Rate
Planting
depth (1)Seeding
zones Q and Seeding Date Q
Species (1)
Per
Lbs/1000
7a and 7b
6b
Be and 5b
acre
Sq.ft
(Inches)
2/1-
5/1-
8/15-
3/1-
5/1-
8/15-
3/15-
6/1-
8/1-
4/30
8/14
11/30
4/30
8/14
11/15
5131
7/31
10/31
Choose one:
BY
BY
BY
Barley
2.5 bu.
2.80
1-2
X
-
10/15
X
-
10115
X
-
10/1
Oats
3 bu.
2.21
1-2
X
-
-
X
-
-
X
-
-
Rye (4)
2.5 bu.
3.22
1-2
X
-
X
X
-
X
X
-
X
a eY or
Rye Plus
10/15
10/15
1011
150 lbs.
3.45
1
X
X
X
X
X
X
Foxtail
X
X
X
X
X
X
X
X
X
millet 5
Weeping
41bs.
0.09
1/4-1/2
-
X
-
-
X
-
-
X
-
lovegrass US
Annual ryegrasS 50 lbs.
1.15 IW1/2 X - 11/1 X - 11/1 X -
8115
Millet (7) 50 lbs.
1.15 1/2 - X - - X - - X
-
(1) Applicable on slopes of 3:1 or flatter
(2) Refer to figure A
- Adopted from USDA, ARS Miscellaneous Publication #1475, January 1990
(3) Between fall and
spring seeding dates, use mulch only if ground is frozen and reseed when thawed
(4) May be used as
a nurse crop for late fall/early winter permanent seedlings, add 56 Lbs/ac. to the permanent
seeding mixture
lq! Maryiana aIale NIgnway Aummisiraaon I emporary aeeo Mix
(5) May be used as a nurse crop for mid -summer permanent seedings. Add 2 Ibs/ac to permanent seed mix.
(6) May be used as a nurse crop for mid -summer permanent seedings. Add 10 Lbs/ac. to the permanent seeding
mix.
L
SR SURFACE ROUGHENING
STAIR STEPPING CUT SLOPES
DEBRIS FROM SLOPE
ABOVE IS CAUGHT - _ -Illi-
BY STEPS I -III 111-
DRA/-�
IIiIIII o I III -
WATER, SOIL AND FERTILIZER
ARE HELD BY STEPS - PLANTS
CAN BECOME ESTABLISHED ON
THE STEPS.
SOURCE: VA. DSWC
CONSTRUCTION ENTRANCE
1
I II II II=11 II r•r•r•r•Zr•r•r.Zs •r•Z �Z•r•t�7�l�lrl
�.
- l
.II II II=11:=11 •l�l t�t�i�i•t�l�l�l�l tit----
1
--- --------
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1 • 1
� A •
•1
n�y,j ��?vI•�Y•! 1 `.t
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�I�Y�y
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i:�i:�t,•�? .�
1Y.•v?vI�L•� �?e
1
1
i 1 1
. 1
.
FILTER CLOTH
RE:
SECTION A -A
SECTION B-B
SOURCE: ADAPTED from 1983 Maryland Standards for Soil erasion and Sediment Control, and Va. DSWC
TEMPORARY SLOPE DRAIN
EARTHEN DIU PROVIDE INLET
CORRUGATED METAL (COMPACTED) PROTECTION
EXTENSION COLLAR
WATERPROOF SEAL �A
a4:I
A INI
PROVIDE OUTLET
PROTECTION or
Z:and
STANDARD FLARED END SECTION
SECTION VIEW
NOTE: SEDIMENT MAY BE CONTROLLED AT OUTLET IF UPLAND PONDING
WILL CREATE PROBLEMS
EARTHEN DIKE
(COMPACTED)
SECTION A - A
i q D+67
GR 0 0 VING SLOPES
GROOVING IS CUTTING FURROWS
ALONG THE CONTOUR OF A SLOPE.
IRREGULARITIES IN THE SOIL
SURFACE CATCH RAINWATER AND
PROVIDE SOME COVERAGE OF LIME,
FERTILIZER AND SEED.
PLATE 3.29-1 SOURCE: VA. DSWC
Plate 3.02-1
sT SEDIMENT TRAP
TEMPORARY SEDIMENT TRAP
VI VARIABLE
ORIGINAL I VARIABLE"
GROUND
ELEV.
67 CU. YD./ACRE
PLATE 3.29-2
N VARIABLES
67 CU. YD./ACRE
4'
\
(EXCAVATED)
\.
FILTER CLOTH
ORIGINAL
GROUND
ELEV.
..
'SEE PLATE 3.13-1
COARSE AGGREGATE
CLASS I RIPRAP
CROSS SECTION
OF OUTLET
CLASS I RIPRAP
LENGTH (IN FEET) _
6 X DRAINAGE
(IN AC.)
AREA
- �-
DIVERSION
DIKE
COARSE AGGREGATE
el
EXCAVATED FILTER CLOTH
AREA
1 COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5
OUTLET (PERSPECTIVE VIEW)
SOURCE: VA. DSWC
GEOTEXTILEMEWATERING BAG
THE DEWATERING BAG SHALL BE MADE OF NON-WOVETN GEOIEXTTILE WITN
BAG PLACED ON MULCH OR STRAW
A MIN. SURFACE AREA OF 225 SQUARE FEET PER SIDE. ALL STRUCTURAL
HIGH STRENGTH DOUBLE
SEEMS SHALL BE SEWN WITH A DOUBLE STITCH USING A DOUBLE NEEDLE
STITCHED IS TYPE SEAMS
MACHINE WITH HIGH STRENGTH THREAD. THE SEAM STRENGTH SHALL
WITHSTAND 100 LAIN USING ASTM D-4884TEST METHOD. THE
SEWN IN SPOUT
DEWATERING BAG SHALL HAVE A NOZZLE LARGE ENOUGH TO
HIGH STRENGTH
ACCOMMODATE A FOUR INCH DISCHARGE HOSE, THE NOZZLE SHALL BE
STRAPPING FOR
SEALED TIGHTLY AROUND THE DISCHARGE HOSE WITH ASTRAP OR
HOLDING HOSE IN
SIMILAR DWOETO PREVENT UNTREATED WATER FROM ESCAPING, THE
PLACE
GEOTEXTILE FABRIC SHALL BE A NON -WOVEN FABRIC WITH THE 1OFr
NON -WOVEN DEWATERING BAG
FOLLOWING PROPERTIES,
GEOTEXTILE FABRIC FOR DEWATERING BAG
PROPERTIES
TEST METHOD
UNITS
DEWATERING BAG 12 OZ
WEIGHT
ASTM D-3776
WYD
12
GRAB TENSILE
ASTM D-4632
LBS,
300
PUNCTURE
ASTM D-4833
LBS,
176
FLOWRAT€
ASTM D-4491
GAUMIN>FT2
70
PERMITMITY
ASTM D-4491
1,3 SEC-1
1
MULLEN BURST
ASTM D-3756
LBS IN2
580
UV RESISTANT
ASIM D-4355
%
70
AO8%REfA1NE0
ASTMD4751
040080MM
100
NOTE:
ALL PROPERTIES ARE MINIMUM AVERAGE ROLL VALUE EXCEPT THE
WEIGHT OFTHE FABRIC WHICH IS GIVEN FOR INFORMATION ONLY,
CONSTRUCTION:
THE DEWATERING BAG SHALL BE INSTALLED OVER A 3INCH GRAVEL
BASE TO PROMOTE INFILTRATION AND DEWATERING OF THE BAG.
- 15 FT
PUMP DISCHARGE
HOSE
70PVIEW
OPENING ACCOMMODATES
UPTO41CIISCHARG--OSL
�.,..�..,, ..,...�� ....� ,.ANT
SIDLE VIEW
PLATE. 3.13-2
STONE 70' MIN -
CONSTRUCTION
ACCESS /-3" SM-2A ASPHALT TOP
/ COURSE
r
STONE
CONSTRUCTION
ACCESS
`--6" MIN. 21A AGGREGATE BASE
PROFILE
ID' MIN.
A rASPHALT PAVED
/ WASHRACK
EXISTING
PAVEMENT
EXISTING
27 2� PAVEMENI-
{20 12' MMIN.*
I -^ t
*MUST EXTEND FULL WIDTH `--0 I PI151TIVL DRAINAGE TO SEDIMENT
OF INGRESS AND EGRESS } TRAPPING DEVICE
OPERATION
PLAN
- 12' MIN.
FILTER CLOTH)
SECTION A -A
POSfTIVE DRAINAGE
TO SEDIMENT
TRAPPING DEVICE
A nrutuntan Water tap of 1 inch rtutst be installed with a rntninutm 1 utch ballcock
slnitoff%,ah,e svpp]I a washhose Kith a ctiaureter of1.5 'arches for adequate
constant pressure. Wash water most be carried away fozen the erihance to an
approved settluio area to reruove sedntieitt. U seclnnelit sliall be prevented fi�olit
enterurg storm drains, ditches or watercowses
PAVED WASH RACK
CONSTRUCTION OF A SILT FENCE
(WITHOUT WIRE SUPPORT)
1. SET THE STAKES. 2. EXCAVATE A 4'1 4" TRENCH
UPSLOPE ALONG THE LINE OF
STAKES.
6'MAX.
FLOW®
3. STAPLE FILTER MATERIAL
TO STAKES AND EXTEND
IT INTO THE TRENCH.
4-
4. BACKFILL AND COMPACT
THE EXCAVATED SOIL.
SHEET FLOW INSTALLATION
(PERSPECTIVE VIEW)
POINTS A SHOULD BE HIGHER THAN POINT B.
DRAINAGEWAY INSTALLATION
(FRONT ELEVATION)
�SOURCE: Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control,VA. DSIIC PLATE. 3.05-2
1 � 1 1Sherwood and Wyant
TEMPORARY DIVERSION DIKE
SOURCE: VA. DSWC
Soil
T
18" min. I
�. M l l l l <-Flow
4.5' min.
PLATE 3.09-1
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SHEET:
06 OF 7
DRAINAGE AREA TO STUDY _POINT.\
DRAINAGE AREA TO STUDY POINT.
IMPERVIOUS: 0.87AC
IMPERVIOUS: 0.40AC
MANAGED TURF.•2.88AC � �
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COMPOSITE CN=81 (D SOILS)
COMPOSITE CN=�3 (D SOILS)
T.M. 93-158
- T.M. 93-15B
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SITE (LODE N/F GOOD, ROBERT W. POST -DEVELOPED �
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IMPERVlO 0.48AC & cATHY A.
PRE -DEVELOPED \
IMPERVIOUO3AC & CATHY A.
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MANA9�D TURF. 0.89AC
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DESIGNED BY:
JLF/LPO
DRAWN BY:
JLF/LPO
CHECKED BY:
JLT
DATE:
8-25-2020
SCALE:
AS SHOWN
JOB:
GOBBLERS RIDGE
FILE:
19.0896
SHEET:
07 OF 7