HomeMy WebLinkAboutFDP201900011 Plan - Approved 2020-05-26RIVANNA WATER AND SEWER
AUTHORITY (RWSA), VIRGINIA
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CROZET FLOW EQUALIZATION TANK AND
PROJECT AREA
PUMPING STATION UPGRADE
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PROJECT DESCRIPTION:
THIS PROJECT CONSISTS OF THE
INSTALLATION OF APPROXIMATELY 290 FEET
OF 24" GRAVITY SEWER, ABANDONMENT OF
APPROXIMATELY 270 FEET OF EXISTING
18" GRAVITY SEWER, INSTALLATION OF A
1.0 MG FLOW EQUALIZATION TANK, AND
VARIOUS PUMPING STATION UPGRADES.
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PROJECT CONTACTS:
RIVANNA WATER AND SEWER
AUTHORITY, VIRGINIA
PROJECT MANAGER: SCOTT SCHILLER, P.E.
695 MOORES CREEK LANE
CHARLOTTESVILLE, VA 22902
(434) 977-2970, EXT. 206
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4466 ROCKFISH TURNPIKE
CHARLOTTESVILLE, VA 22902
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PROJECT MANAGER: JUN MENG, P.E.
9020 STONY POINT PARKWAY, SUITE 475
RICHMOND, VIRGINIA 23235
(804)355-9993 EXT. 1405
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APPROVED
by the Albemarle County
Community Development Department
Date 05/26/2020
File FDP201900011
APRIL 2020
ALBEMARLE COUNTY WP0202000012
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GENERAL NOTES:
A DISTINCTION BETWEEN NEW AND EXISTING MATERIALS, EQUIPMENT AND
STRUCTURES HAS BEEN MADE ON THE DRAWINGS BY LINE WEIGHT AND/OR
DENSITY. HEAVY REPRESENTS NEW. LIGHT AND/OR SCREENED REPRESENTS
EXISTING.
2. THE CONTRACTOR IS RESPONSIBLE TO MAKE ALL MEASUREMENTS NECESSARY TO
LOCATE, FABRICATE, ERECT, CONSTRUCT AND OTHERWISE PROVIDE ALL NEW
WORK IN LOCATIONS SHOWN AND RELOCATE AND REWORK EXISTING WORK AS
REQUIRED FOR A COMPLETE TROUBLE -FREE OPERATING INSTALLATION.
3. THE CONTRACTOR IS RESPONSIBLE TO FABRICATE, ERECT, CONSTRUCT AND
OTHERWISE PROVIDE ALL NEW WORK CONNECTING TO EXISTING WORK. THE
CONTRACTOR IS ALSO RESPONSIBLE TO MAKE ANY ADJUSTMENTS IN
FABRICATION, ERECTION, CONSTRUCTION AND INSTALLATION NECESSARY TO
CONSTRUCT AND FIT NEW WORK AND RELOCATIONS TO EXISTING CONDITIONS
AND LOCATIONS TO CONFORM TO THE ARRANGEMENTS AND GENERAL DESIGN
SHOWN. ADJUSTMENTS PROPOSED OR CONTEMPLATED BY THE CONTRACTOR
SHALL CONFORM TO REQUIREMENTS AND STANDARDS OF THE CONTRACT
DOCUMENTS.
4. THE CONTRACTOR IS RESPONSIBLE TO MAKE RELOCATIONS SHOWN TO MATCH
THE MATERIAL AND QUALITY OF THE WORK TO BE RELOCATED. RELOCATIONS
SHOWN ARE TO BE ARRANGED TO PRODUCE PERFORMANCE, UTILITY AND
ACCESS EQUAL TO THE EXISTING WORK.
5. AN ASTERISK (*) AT NEW CONSTRUCTION DENOTES LOCATIONS, ELEVATIONS,
DIMENSIONS AND OTHER INFORMATION DEPENDENT ON THE CONTRACTOR'S
SUBMITTALS. THE CONTRACTOR SHALL DEVELOP AND SHOW THE INFORMATION
MARKED WITH AN ASTERISK (*) ON HIS SUBMITTALS. ALL INFORMATION FOR
ASTERISKS (*) ARE THE RESPONSIBILITY OF THE CONTRACTOR TO DEVELOP AND
ASSURE COMPATIBLE INTERFACING FOR A COMPLETE, COORDINATED AND
TROUBLE -FREE OPERATING INSTALLATION. ALL REQUIREMENTS HEREIN SHALL BE
BASED ON FINAL PROCESSING AND/OR REVIEW OF THE CONTRACTORS
SUBMITTALS OR SELECTIONS.
6. LOCATIONS, ELEVATIONS AND DIMENSIONS OF EXISTING PIPING, EQUIPMENT,
STRUCTURES AND OTHER EXISTING WORK ARE BASED ON INFORMATION
FURNISHED BY VARIOUS SOURCES, INCLUDING EXISTING RECORD DRAWINGS AND
CONTRACT DOCUMENTS, AND IN SOME INSTANCES FIELD MEASUREMENTS.
LOCATIONS, ELEVATIONS AND DIMENSIONS OF NEW WORK CONNECTING OR
ADJACENT TO OR INTERFACING WITH EXISTING WORK HAVE BEEN DEVELOPED
AND ARRANGED BASED ON THE FOREGOING INFORMATION AND FIELD
MEASUREMENTS. THE CONTRACTOR IS RESPONSIBLE TO FIELD CHECK AND
MEASURE LOCATIONS, ELEVATIONS AND DIMENSIONS AND TO FIT THE NEW WORK
TO ACTUAL EXISTING LOCATIONS, ELEVATIONS AND DIMENSIONS FOR A COMPLETE
AND TROUBLE -FREE OPERATING FACILITY.
7. THE EXISTING GRADE ELEVATIONS SHOWN ARE APPROXIMATE. WHERE ACTUAL
ELEVATIONS AND LOCATIONS ARE NECESSARY FOR THE WORK, THE CONTRACTOR
IS RESPONSIBLE TO FIELD MEASURE AND CHECK EXISTING GRADE ELEVATIONS.
8. EXISTING FACILITIES AFFECTED BY THE CONTRACTOR IN PERFORMANCE OF THE
WORK UNDER THIS CONTRACT SHALL BE JOINTLY INSPECTED BY THE RIVANNA
WATER AND SEWER AUTHORITY AND CONTRACTOR PRIOR TO STARTING WORK. IT
SHALL BE THE RESPONSIBILITY OF THE CONTRACTOR TO REPAIR, MODIFY,
UPGRADE, PROTECT, SUPPLEMENT OR SUPPORT EXISTING FACILITIES TO OBTAIN
THE DEGREE OF SERVICE REQUIRED BY THE CONTRACTOR TO PERFORM THE
WORK. THE CONTRACTOR SHALL RETURN EXISTING FACILITIES TO ITS
FUNCTIONAL EQUIVALENCY FOUND PRIOR TO THE START OF THE CONTRACTOR'S
WORK TO THE SATISFACTION OF THE ENGINEER.
9. THE CONTRACTOR SHALL LIMIT ALL CONSTRUCTION OPERATIONS TO WITHIN
PUBLIC RIGHTS -OF -WAY AND THE LIMITS OF CONSTRUCTION SHOWN.
10. ALL WORK AND COSTS ASSOCIATED WITH COMPLIANCE WITH THESE GENERAL
NOTES SHALL BE INCLUDED IN THE PRICES BID FOR THE VARIOUS CONTRACT
ITEMS AND NO SEPARATE PAYMENT WILL BE MADE THEREFOR.
11. EXISTING FACILITIES SHALL BE REMOVED TO THE EXTENT SHOWN AND SPECIFIED
AND AS NEEDED TO BE COMPATIBLE WITH AND ACCOMMODATE NEW WORK OR
REPLACEMENT WORK.
12. THE CONTRACTOR IS RESPONSIBLE TO ACCEPT ALL EXISTING FACILITIES FOR
WORK IN THE STATUS AND CONDITIONS THAT OCCUR WHEN WORK AT THE
FACILITY COMMENCES. THE CONTRACTOR SHALL PERFORM ALL WORK
NECESSARY TO PREPARE AND MAINTAIN THE EXISTING FACILITIES AS NEEDED TO
PERFORM ALL WORK UNDER THE CONTRACT. THE CONTRACTOR IS RESPONSIBLE
TO REMOVE AWAY FROM THE SITE OF THE WORK TO HIS OWN PLACE OF
DISPOSAL ALL EXCESS ITEMS, MATERIAL AND SUBSTANCES REMOVED. AS PART
OF THIS WORK THE CONTRACTOR IS RESPONSIBLE TO FURNISH ALL DESIGN,
FABRICATION, ERECTION, LABOR, EQUIPMENT, MATERIALS AND SERVICES.
13. DESCRIPTIONS NOTED ON PLAN SHEETS REFER TO THE TYPE OF EXISTING
SURFACE ONLY. ALL SURFACE RESTORATION SHALL BE IN KIND, UNLESS
OTHERWISE SHOWN OR SPECIFIED, AND SHALL MATCH EXISTING GRADE, SHAPE,
THICKNESS, SIZE, QUALITY AND PERFORMANCE.
14. THE CONTRACTOR SHALL PROVIDE AT LEAST 72 HOURS NOTICE TO ALL THE
VARIOUS PRIVATE AND MUNICIPAL AGENCIES IN ORDER TO PERMIT THE LOCATION
OF EXISTING UNDERGROUND AND OVERHEAD UTILITIES IN ADVANCE OF
CONSTRUCTION, BY CALLING MISS UTILITY (1-800-552-7001) OR, IF
NECESSARY, BY CONTACTING THE AGENCIES INDIVIDUALLY.
15. WHEREVER ANY ABANDONED CONDUITS OR PIPES ARE CUT OR BROKEN DURING
CONSTRUCTION THEY SHALL BE FILLED WITH GROUT OR CLASS D CONCRETE
AND SUITABLE BULKHEADS, AS DETERMINED BY THE ENGINEER. GROUT,
CONCRETE AND BULKHEADS SHALL BE INSTALLED SO THAT NO MOVEMENT,
SETTLEMENT OR LOSS OF BACKFILL MATERIAL SHALL OCCUR.
16. DIMENSIONS NOTED BY A DOUBLE ASTERISK (**) SHALL BE CHECKED BY THE
CONTRACTOR TO OBTAIN ACTUAL FIELD MEASUREMENTS AND DIMENSIONS AND
CONSTRUCTION ADJUSTED TO FIT NEW CONSTRUCTION TO ACTUAL LOCATIONS OF
EXISTING CONSTRUCTION AS SHOWN AND REQUIRED.
17. IF THERE IS DISAGREEMENT IN WORK SHOWN OR SPECIFIED SUCH
DISAGREEMENT SHALL BE RESOLVED BY APPLYING THE PRECEDENCE IN THE
CONTRACT DOCUMENTS. THE CONTRACTOR IS RESPONSIBLE TO PROVIDE THE
MINIMUM WORK NEEDED TO SATISFY FUNCTIONAL, CONTROL AND INTERFACING
REQUIREMENTS AND PROVIDE A TROUBLE -FREE OPERATING INSTALLATION UNDER
THE PRECEDENCE.
18. IN COMPLYING WITH ALL RESPONSIBILITIES AND REQUIREMENTS UNDER THESE
GENERAL NOTES, THE CONTRACTOR SHALL PROVIDE ALL DESIGNS, LABOR,
EQUIPMENT AND SERVICES NEEDED FOR SUCH COMPLIANCE.
19. TRANSPORT AND DISPOSE OF SURPLUS EXCAVATED MATERIAL AND EXCAVATED
MATERIAL UNSUITABLE FOR BACKFILLING OR EMBANKMENTS TO AN APPROVED
OFF SITE DISPOSAL LOCATION. OBTAIN THE OFF SITE DISPOSAL LOCATION.
SUBMIT RELEASE FROM PROPERTY OWNER OF OFF -SITE DISPOSAL LOCATION
AFTER ALL CONTRACTOR WORK IS COMPLETED OR PRIOR TO FINAL INSPECTION.
20. ALL ROADWAY CONSTRUCTION AND MATERIALS SHALL CONFORM WITH STANDARDS
AND SPECIFICATIONS OF THE VIRGINIA DEPARTMENT OF HIGHWAYS AND
TRANSPORTATION'S LATEST EDITION, EXCEPT WHERE ALBEMARLE COUNTY
STANDARDS ARE APPLICABLE, OR AS SPECIFIED OTHERWISE.
21. THE CONTRACTOR SHALL NOTIFY AND OBTAIN PERMISSION FROM THE AUTHORITY
72 HOURS PRIOR TO MAKING ANY ADJUSTMENTS TO THE WATER OR SEWER
SYSTEMS.
22. THE LOCATIONS OF ALL EXISTING UTILITIES AND LATERAL CONNECTIONS SHOWN
ON THE PLAN ARE APPROXIMATE. THE CONTRACTOR SHALL BE RESPONSIBLE
FOR LOCATING UTILITIES ALONG THE LINE OF HIS WORK AND PROTECTING OR
RELOCATING SAID UTILITIES AS REQUIRED.
23. AFTER NEW SANITARY SEWER IS IN FULL OPERATION, FILL EXISTING SANITARY
SEWERS WITH FLOWABLE FILL INCLUDING ABANDONED JUNCTION BOXES AND
MANHOLES.
24. ABANDON EXISTING MANHOLES WHERE SHOWN.
25. CONSTRUCTION ENTRANCES FROM PUBLIC ROADWAYS SHALL HAVE SIGNS
COMPLYING WITH VDOT AND COUNTY REGULATIONS ON EACH APPROACH
DIRECTION.
26. RESTORE ACCESSES AND STAGING AREAS EQUAL TO PRECONSTRUCTION
CONDITIONS. IF GRANULAR MATERIAL IS USED IN THE STAGING AREAS, REMOVE
TOP 4" OF SOIL AND STOCKPILE PRIOR TO PLACING GRANULAR MATERIAL. AT
END OF CONSTRUCTION COMPLETELY REMOVE GRANULAR MATERIAL, REPLACE
STOCKPILED SOIL AND SEED AND MULCH DISTURBED STAGING AREA. PROVIDE
DUST CONTROL IN STAGING AREAS AND ACCESS ROADS. NO ERODIBLE
MATERIALS SHALL BE STORED IN STAGING AREAS. COMPLY WITH APPLICABLE
EROSION AND SEDIMENT CONTROL STANDARDS.
27. MANHOLES SHALL BE CONSTRUCTED 18 INCHES ABOVE EXISTING GRADE UNLESS
OTHERWISE SPECIFIED OR SHOWN ON DRAWINGS.
28. FIELD SURVEY MANHOLES AND ADJUST NUMBER AND LOCATIONS OF SERVICE
LINES INTO THE MANHOLE PRIOR TO SUBMISSION OF SHOP DRAWINGS.
29. ALL LIMITS OF DISTURBANCE AND EDGE OF EASEMENTS SHALL BE FIELD
LOCATED AND MARKED WITH EITHER SILT FENCE, BARRIER TAPE, OR FLAGGING.
ALL MARKINGS SHALL REMAIN IN PLACE WHILE WORK IN THE CURRENT DIVISION
IS BEING COMPLETED. THE CONTRACTOR SHALL NOT WORK OUTSIDE OF THE
MARKINGS.
30. PROVIDE TEMPORARY CONSTRUCTION ENTRANCES AT THE ENTRANCE TO THE SITE
ALONG THE EASEMENT AT THE END OF THE PUBLIC AND/OR PAVED ROAD.
31. CONTRACTOR SHALL USE DUE DILIGENCE TO MINIMIZE CONSTRUCTION
DISTURBANCE TO EXISTING EASEMENT AREAS WHICH ARE OUTSIDE EASEMENTS
AND WORKING LIMITS SHOWN ON PLANS. MINIMAL DISTURBANCE WILL BE
PERMITTED WHEN NECESSARY FOR TIE-INS AND EXISTING STRUCTURES
ABANDONMENT. DISTURBANCE OF EXISTING EASEMENT AREAS OUTSIDE OF
EASEMENT AND WORKING LIMITS SHOWN SHALL BE SUBJECT TO ENGINEER
APPROVAL.
32. ADDITIONAL PROPERTY FOR LAY DOWN OR STAGING DURING CONSTRUCTION IS
CONTRACTOR'S RESPONSIBILITY.
CVEC GENERAL NOTES:
1. THE MINIMUM DISTANCE REQUIRED BY OSHA SHALL BE MAINTAINED BETWEEN
ELECTRICAL CONDUCTORS AND ANY PART OF THE ENCROACHMENT OR
EQUIPMENT USED IN THE INSTALLATION OR MAINTENANCE OF THE
ENCROACHMENT. THE MINIMUM CLEARANCE SHALL BE GOVERNED BY THE
CLEARANCE REQUIRED FOR THE 230 kV LINE.
2. DO NOT STORE MATERIAL OR EQUIPMENT ON THE CVEC RIGHT-OF-WAY.
3. PROVIDE RWSA AT LEAST 10 DAYS ADVANCE NOTICE OF ANY ACTIVITIES BEING
PERFORMED WITHIN CVEC RIGHT-OF-WAY.
4. BLASTING ON RIGHT-OF-WAY IS TO BE AVOIDED IF POSSIBLE, BUT IF
UNAVOIDABLE, A MINIMUM EXPLOSIVE CHARGE AND MATTING MUST BE USED TO
PREVENT DAMAGE. NOTICE MUST BE GIVEN TO RWSA AND CVEC 5 DAYS IN
ADVANCE OF ANY BLASTING.
5. MOTOR VEHICLES MAY BE PARKED ON THE RIGHT-OF-WAY PROVIDED THAT
THEY DO NOT EXCEED A HEIGHT OF 13'-6", ARE NOT HOUSE, OFFICE OR
CONSTRUCTION TRAILERS, DO NOT CARRY EXPLOSIVES OR FLAMMABLE CARGO,
ARE OPERATIVE AND THE PARKING IS OF A TRANSIENT NATURE, AND SHALL
HAVE CURRENT INSPECTION DECALS AND SHALL NOT VIOLATE ANY LOCAL
ORDINANCES.
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: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 APPROVAL 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 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 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL 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.
GENERAL CONSTRUCTION NOTES:
1. PRIOR TO ANY CONSTRUCTION WITHIN ANY EXISTING PUBLIC RIGHT-OF-WAY, INCLUDING CONNECTION TO
ANY EXISTING ROAD, A PERMIT SHALL BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF
TRANSPORTATION (VDOT). THIS PLAN AS DRAWN MAY NOT ACCURATELY REFLECT THE REQUIREMENTS OF
THE PERMIT. WHERE ANY DISCREPANCIES OCCUR THE REQUIREMENTS OF THE PERMIT SHALL GOVERN.
2. ALL MATERIALS AND CONSTRUCTION METHODS SHALL CONFORM TO CURRENT SPECIFICATIONS AND
STANDARDS OF VDOT UNLESS OTHERWISE NOTED.
3. EROSION AND SILTATION CONTROL MEASURES SHALL BE PROVIDED IN ACCORDANCE WITH THE APPROVED
EROSION CONTROL PLAN AND SHALL BE INSTALLED PRIOR TO ANY CLEARING, GRADING OR OTHER
CONSTRUCTION.
4. ALL SLOPES AND DISTURBED AREAS ARE TO BE FERTILIZED, SEEDED AND MULCHED.
5. THE MAXIMUM ALLOWABLE SLOPE IS 2:1 (HORIZONTAL:VERTICAL). WHERE REASONABLY OBTAINABLE,
LESSER SLOPES OF 3:1 OR BETTER ARE TO BE ACHIEVED.
6. PAVED, RIP -RAP OR STABILIZATION MAT LINED DITCH MAY BE REQUIRED WHEN IN THE OPINION OF THE
COUNTY ENGINEER, OR DESIGNEE, IT IS DEEMED NECESSARY IN ORDER TO STABILIZE A DRAINAGE
CHANNEL.
7. ALL TRAFFIC CONTROL SIGNS SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC
CONTROL DEVICES.
8. UNLESS OTHERWISE NOTED ALL CONCRETE PIPE SHALL BE REINFORCED CONCRETE PIPE -CLASS III.
9. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE
CONSTRUCTION INDUSTRY (29 CFR PART 1926).
GENERAL CONSTRUCTION NOTES FOR
STORMWATER MANAGEMENT PLANS:
1. ALL CHECK DAMS AND CONSTRUCTED FILL TO BE WITHIN 95% OF MAXIMUM DRY DENSITY AND 2% OF
OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL TO BE APPROVED BY A GEOTECHNICAL ENGINEER. A
GEOTECHNICAL ENGINEER IS TO BE PRESENT DURING CONSTRUCTION OF CHECK DAMS.
2. PIPE AND RISER JOINTS ARE TO BE WATERTIGHT WITHIN STORMWATER MANAGEMENT FACILITIES.
3. FOR TEMPORARY SEDIMENT TRAPS OR BASINS WHICH ARE TO BE CONVERTED TO PERMANENT
STORMWATER MANAGEMENT FACILITIES; CONVERSION IS NOT TO TAKE PLACE UNTIL THE SITE IS
STABILIZED, AND PERMISSION HAS BEEN OBTAINED FROM THE COUNTY EROSION CONTROL INSPECTOR.
4. CLAY CUT-OFF COLLARS ARE TO BE INSTALLED ALONG THE PIPELINE AT REGULAR INTERVALS TO
MINIMIZE THE LINEAR FLOW OF GROUNDWATER IN THE PIPE TRENCH.
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GENERAL
GENERAL NOTES, STANDARD CONSTRUCTION
AND DETAILS
NOTES
PROJECT NO.: 01713.01
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EROSION AND SEDIMENT CONTROL PLAN
SCALE: 1 " = 20'
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RIVANNA WATER AND SEWER AUTHORITY
CROZET FLOW EQAULIZATION TANK
AND PUMPING STATION UPGRADES
GENERAL
E&S CONTROL PLAN
TABLE OF PROPERTY
OWNERSHIP
PARCEL
OWNER
CROZET PS
RIVANNA WATER & SEWER
AUTHORITY
NO. 4 SITE
RIVANNA WATER & SEWER
FET-1 SITE
AUTHORITY
ADJACENT
DAVID GREGORY MITCHELL
PARCEL
FORREST ROTGIN MITCHELL
EROSION AND SEDIMENT CONTROL LEGEND
ROCK CHECK DAM
TREE PROTECTION
TP
TREE PROTECTION LIMITS
- - - - - -
INLET PROTECTION
ao
CULVERT INLET PROTECTION
CIP0
SILT FENCE
SF —x x x—
SAFETY FENCE
SAF
TEMPORARY FILL DIVERSION
FD > >
MULCHING (EXTENDS)
MU
PERMANENT SEEDING (EXTENDS)
PS
TEMPORARY SEEDING (EXTENDS)
TS
CONSTRUCTION ENTRANCE
CE
CONSTRUCTION ROAD STABILIZATION CRS
DUST CONTROL
DC
BARRIER TAPE
a —
LIMITS OF DISTURBANCE
TURBIDITY CURTAIN
TC
RMA LIMITS
RPA LIMITS
SOIL LEGEND
SOIL BOUNDARY
• • • •
ASHE LOAM (15-25% SLOPES)
4D
ASHE LOAM (25-45 % SLOPES)
4E
HAYESVILLE CLAY LOAM (15-25% SLOPES)
37D3
HAYESVILLE CLAY LOAM (25-45% SLOPES)
37E3
RIVERVIEW-CHEWACLA COMPLEX
77
RIVERVIEW LOAM
7s
NOTES:
1. CHANNEL DRAINAGE AREA AND FLOW RATE MEET SILT
FENCE DESIGN CRITERIA (VAESCH SPEC 3.05).
A. DRAINAGE AREA, A = 0.12 ACRE
B. RATIONAL RUNOFF COEFFICIENT, C = 0.3
C. RAINFALL INTENSITY (10-YR), 1 = 5.94 INCH/HR
D. PEAK DISCHARGE (10-YR), Q = 0.22 CFS
PROJECT NO.: 01713.01
DWG: G 3
SHEET: 4 OF 33
DATE: APRIL 2020 REV: 0
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2.
EROSION AND SEDIMENT CONTROL NARRATIVE
PROJECT DESCRIPTION
THE PURPOSE OF THIS PROJECT IS TO INSTALL A ONE MILLION GALLON FLOW
EQUALIZATION TANK FOR THE LICKING HOLE CREEK PUMPING STATION (CROZET
PS #4) IN CROZET, VIRGINIA. THE CONSTRUCTION WILL INCLUDE NEW SEWER
INSTALLATION, VAULTS, MANHOLES, AND A GRAVEL ACCESS ROAD. DURING STORM
EVENTS THE TANK WILL PROVIDE STORAGE TO PREVENT DOWNSTREAM OVERFLOWS
OF COMBINED SEWAGE. THE COUNTY OF ALBEMARLE IDENTIFIED CROZET AS A
GROWTH AREA AND ARE PROACTIVELY INCREASING SEWAGE CAPACITIES TO
PREPARE. A TOTAL OF APPROXIMATELY 1.26 ACRES WILL BE DISTURBED FOR THE
REGULATOR INSTALLATION.
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THE TANK SITE LIES ADJACENT TO THE EXISTING PUMPING STATION CROZET
PS #4 AND WILL BE ACCESSIBLE VIA A NEW GRAVEL ACCESS ROAD, THE
SURROUNDING VEGETATION CONSISTS OF FORESTED WOODLANDS WITH
RIPARIAN AREAS. THE TANK SITE IS SLOPED NORTH. THE SITE DRAINS
TOWARDS AN EXISTING DITCH. ALL VEGETATION SURROUNDING THE PUMP
STATION AND TANK WILL REMAIN AFTER CONSTRUCTION. THE RIVANNA
WATER AND SEWER AUTHORITY (RWSA) OWNS THE SITE.
3. ADJACENT AREAS
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THE TANK PROJECT SITE IS SURROUNDED BY THE EXISTING ACCESS ROAD AND
DENSE MOUNTAINOUS FOREST LAND. ADJACENT VEGETATED AREAS WILL NOT BE
DISTURBED DURING CONSTRUCTION.
THERE ARE NO OFF -SITE (BALANCED OR BORROWED) AREAS ASSOCIATED WITH
THIS PROJECT. ALL DEMOLITION DEBRIS AND OTHER SPOILS WILL BE HAULED
TO A LICENSED LANDFILL.
SOILS
THE NATURAL RESOURCES CONSERVATION SERVICE (NRCS) DATA IDENTIFIES
THE SOILS ON -SITE AS HAYESVILLE CLAY AND LOAM, RIVERVIEW LOAM, AND
RIVERVIEW-CHEWACLA COMPLEX WITH VARYING DEGREES OF EROSION AND
PERCENT SLOPES. THE NRCS DATA DOES NOT ATTRIBUTE AN ERODIBILITY (K)
VALUE TO THESE SOILS. ANY POTENTIAL EROSION RESULTING FROM THE
CONSTRUCTION WILL BE CORRECTED BEFORE DEPOSITION INTO A WATERWAY.
CRITICAL AREAS
THERE ARE NO CRITICAL AREAS ASSOCIATED WITH THIS SITE. THE LAYDOWN
AND CONSTRUCTION AREAS WILL RECEIVE ALL THE APPROPRIATE SEDIMENT
AND EROSION CONTROL MEASURES TO PREVENT THE DISCHARGE OF SILT AND
OTHER FORMS OF WATER POLLUTION OFF -SITE.
EROSION AND SEDIMENT CONTROL MEASURES
UNLESS OTHERWISE NOTED, ALL VEGETATIVE AND STRUCTURAL EROSION AND
SEDIMENT CONTROL MEASURES SHALL BE CONSTRUCTED AND MAINTAINED IN
ACCORDANCE WITH THE STANDARDS AND SPECIFICATIONS OF THE VIRGINIA
EROSION AND SEDIMENT CONTROL HANDBOOK (LATEST EDITION).
STRUCTURAL PRACTICES
A. SAFETY FENCE: STD. AND SPEC. 3.01. A SAFETY FENCE SHALL BE
INSTALLED WHERE REQUIRED TO LIMIT ACCESS OF THE SITE TO THE
PUBLIC.
B. TEMPORARY CONSTRUCTION ENTRANCE: STD. AND SPEC. 3.02. A
TEMPORARY CONSTRUCTION ENTRANCE SHALL BE INSTALLED WHERE
REQUIRED.
C. CONSTRUCTION ROAD STABILIZATION: STD. AND SPEC. 3.03.
TEMPORARY CONSTRUCTION ROADS SHALL BE STABILIZED AS REQUIRED
TO PREVENT EROSION AND SEDIMENTATION.
D. SILT FENCE: STD. AND SPEC. 3.05. SILT FENCE SHALL BE PLACED
AROUND THE SITE TO INTERCEPT SEDIMENT AS SHOWN ON THE
EROSION CONTROL PLAN.
E. ROCK CHECK DAMS: STD. AND SPEC. 3.20 ROCK CHECK DAMS
SHALL BE PROVIDED WHERE INDICATED ON THE PLANS TO
REDUCE THE VELOCITY OF CONCENTRATED STORMWATER FLOWS.
F. DEWATERING STRUCTURE: STD. AND SPEC. 3.26. DEWATERING
STRUCTURES SHALL DISCHARGE IN A MANNER WHICH WILL
NOT ADVERSELY AFFECT FLOWING STREAMS, DRAINAGE SYSTEMS OR
OFF -SITE PROPERTY.
G. TURBIDITY CURTAIN: STD AND SPEC 3.27. TURBIDITY CURTAINS
SHALL BE INSTALLED WHERE DESIGNATED ON THE EROSION
AND SEDIMENT CONTROL PLANS TO PROVIDE SEDIMENTATION
PROTECTION FOR A WATERCOURSE FROM UP -SLOPE LAND
DISTURBANCE OR FROM DREDGING OR FILLING WITHIN THE
WATERCOURSE.
H. DUST CONTROL: STD. AND SPEC. 3.39. DUST CONTROL MEASURES TO
PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL
SURFACES AND REDUCE THE AIRBORNE SUBSTANCES WHICH MAY
PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM
ANIMAL OR PLANT LIFE WILL BE EXERCISED THROUGHOUT THE
PROJECT DURATION.
I. WHERE CONSISTENT WITH SAFETY AND SPACE CONSIDERATIONS,
EXCAVATED MATERIAL IS TO BE PLACED ON THE UPHILL SIDE OF
EXCAVATIONS.
VEGETATION PRACTICES
TEMPORARY SEEDING STD. AND SPEC. 3.31. ALL AREAS ROUGH -GRADED DURING
THE INITIAL PHASES OF CONSTRUCTION SHALL BE SEEDED WITH FAST GERMINATING,
TEMPORARY VEGETATION WITHIN 7 DAYS FOLLOWING GRADING WHEN EXPOSED SOILS
ARE NOT TO BE PERMANENTLY STABILIZED WITHIN 30 DAYS. SEEDING MIX OF
GERMAN MILLET (SETARIA ITALICA) AT A RATE OF 50 LBS/ACRE WILL BE APPLIED AS
TEMPORARY SEEDING FROM MAY 1 THROUGH AUGUST 31. SEEDING MIX OF 50/50
MIX OF ANNUAL RYEGRASS (LOLIUM MULTI-FLORUM) AND CEREAL (WINTER) RYE
(SECALE CEREALE) AT A RATE OF 100 LBS/ACRE FROM SEPTEMBER 1 THROUGH
FEBRUARY 15.
10. PERMANENT STABILIZATION
ALL AREAS ON THE SITE WHICH ARE DESIGNATED FOR GRAVEL SHALL BE
STABILIZED IMMEDIATELY AFTER GRADING. ALL OTHER AREAS DISTURBED BY
CONSTRUCTION SHALL BE STABILIZED WITH PERMANENT SEEDING IMMEDIATELY
FOLLOWING FINISH GRADING. GRADED AREAS SHALL BE FERTILIZED, SEEDED, AND
MULCHED ACCORDING TO STDS. AND SPECS. 3.32 AND 3.35 OF THE VIRGINIA
EROSION AND SEDIMENT CONTROL HANDBOOK AND THE CONTRACT DOCUMENTS.
SEEDING MIX OF 90% K-31 FESCUE, 5% RED TOP GRASS, AND 5% IMPROVED
KENTUCKY BLUEGRASS. MIXTURE APPLIED AT A RATE OF 200 LBS./ACRE. IN
ADDITION, ALL AREAS DISTURBED WITHIN THE RPA WILL BE STABILIZED AND
MITIGATED IN ACCORDANCE TO THE GUIDANCE PROVIDED IN THE DCR RIPARIAN
BUFFERS AND MODIFICATION AND MITIGATION GUIDANCE MANUAL (LATEST EDITION).
11. PHASING OF LAND DISTURBING ACTIVITIES
A. SILT FENCES, SAFETY FENCES, TURBIDITY CURTAINS, AND ALL OTHER
PROJECT SPECIFIC EROSION AND SEDIMENT CONTROL TEMPORARY
IMPLEMENTS SHALL BE IN PLACE BEFORE ANY CONSTRUCTION BEGINS.
B. ALL E&S MEASURES SHALL BE MAINTAINED DURING DEMOLITION.
C. CONSTRUCTION SHALL BE SEQUENCED SO THAT EXCAVATION OPERATIONS
CAN BEGIN AND END AS QUICKLY AS POSSIBLE.
D. AS NECESSARY GRADING OCCURS, CONSTRUCTION ROAD STABILIZATION
SHALL BE INSTALLED TO PREVENT SEDIMENT TRANSPORT.
E. TEMPORARY SEEDING SHALL OCCUR WITHIN 7 DAYS AFTER GRADING
UNTIL FINAL GRADING IS ACHIEVED.
F. PERMANENT STABILIZATION OF THE SITE SHALL OCCUR IMMEDIATELY
FOLLOWING FINAL GRADING AND FINAL CONSTRUCTION OPERATIONS.
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THE POST CONSTRUCTION IMPERVIOUS SURFACE OVER THE TANK SITE
INCREASES SLIGHTLY WHEN COMPARED TO THE PRE -CONSTRUCTION
CONDITIONS. STORMWATER ANALYSIS HAS DEMONSTRATED NO NEGATIVE EFFECT
ON DOWNSTREAM WATERS OR IMPACT TO THE FLOODPLAIN. NO IMPROVEMENT
MEASURES ARE REQUIRED PER MS-19, OR THE VIRGINIA STORMWATER
MANAGEMENT HANDBOOK.
13. REMOVAL OF TEMPORARY MEASURES
ALL TEMPORARY EROSIONS AND SEDIMENT CONTROL MEASURES SHALL BE
DISPOSED OF WITHIN 30 DAYS AFTER THE FINAL SITE STABILIZATION IS
ACHIEVED OR AFTER TEMPORARY MEASURES ARE NO LONGER NEEDED.
TRAPPED SEDIMENT AND OTHER DISTURBED SOIL AREAS RESULTING FROM THE
DISPOSAL OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED.
14. MAINTENANCE
ALL INSTALLED EROSION AND SEDIMENT CONTROL MEASURES MUST BE IN
ACCORDANCE WITH REQUIREMENTS OF THE VIRGINIA EROSION AND SEDIMENT
CONTROL HANDBOOK (LATEST EDITION). ALL EROSION AND SEDIMENT CONTROL
MEASURES MUST BE CHECKED DAILY AND AFTER EACH SIGNIFICANT RAINFALL
ANY DAMAGE CAUSED BY RAINFALL OR CONSTRUCTION ACTIVITIES MUST BE
REPAIRED BY THE CLOSE OF THE DAY. THE FOLLOWING ITEMS MUST BE
CHECKED IN PARTICULAR:
A. ALL SEEDED AREAS MUST BE CHECKED TO SEE THAT A GOOD STAND
IS MAINTAINED. THE AREA MUST BE RESEEDED AS NEEDED.
B. SILT FENCES SHALL BE CHECKED DAILY AND AFTER EACH RAIN FOR
UNDERMINING. REMOVE AND DISPOSE OF ANY ACCUMULATED SEDIMENT.
C. PERMANENT AND TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO
DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON
ANY PORTION OF THE SITE.
15. E&S QUANTITIES TABLE:
EROSION AND SEDIMENT CONTROL PRACTICE
QUANTITY
SILT FENCE
1,247 LF
CONSTRUCTION ROAD STABILIZATION
2,650 SF
CONSTRUCTION ENTRANCE
840 SF
CHECK DAM
2
MULCHING
48,180 SF
TEMPORARY SEEDING
48,180 SF
PERMANENT SEEDING
48,180 SF
16. POST CONSTRUCTION SUPPORTING INFORMATION
TOTAL GROSS SQUARE FOOTAGE AREA OF
54,825 SF / 1.26 ACRES
DISTURBANCE
TOTAL LAND AREA COVERED BY
BUILDINGS/IMPERVIOUS STRUCTURES (SQUARE
3,835 SF / 0.09 ACRES
FOOTAGE/ACREAGE)
AMOUNT OF OPEN SPACE ON SITE (ACREAGE)
48,180 SF / 1.1 ACRES
AMOUNT OF PAVED OR GRAVEL AREA
2,810 SF / 0.06 ACRES, 5.1 %
(IMPERVIOUS AREA) ON SITE (ACREAGE AND %)
NUMBER OF PARKING SPACES
2 PARKING SPACES
NUMBER OF RESIDENTIAL UNITS OF EACH TYPE
0 RESIDENTIAL UNITS
DCR 19 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.
(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 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
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 SHALL, AT A MINIMUM, MAINTAIN THE STRUCTURAL
INTEGRITY OF THE BASIN DURING A TWENTY-FIVE YEAR STORM OF 24-HOUR
DURATION
(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.
(1 1) 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
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
(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 NONERODIBLE MATERIAL SHALL BE PROVIDED.
(14) REGULATION OF WATERCOURSE CROSSING
ALL APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS PERTAINING TO WORKING
IN OR CROSSING LIVE WATERCOURSES SHALL BE MET.
(15) REGULATION OF WATERCOURSE CROSSING
THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER
WORK IN THE WATERCOURSE IS COMPLETED.
(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, 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 FOUND IN VESC REGULATION 4VAC50-30-40
MS-19 PARTS A-K.
-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.
GENERAL NOTES:
1. ALL EROSION AND SEDIMENT CONTROL MEASURES MUST BE PERFORMED IN
ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL LAW (TITLE
10.1, CHAPTER 5, ARTICLE 4 OF THE CODE OF VIRGINIA.
2. ALL REGULATED LAND -DISTURBING ACTIVITIES MUST COMPLY WITH THE 19
MINIMUM STANDARDS SPECIFIED IN SECTION 4VAC50-30-40 OF THE VIRGINIA
EROSION AND SEDIMENT CONTROL REGULATIONS THAT ARE APPLICABLE TO THE
SPECIFIC PROJECT.
3. LOCATION OF TEMPORARY CONSTRUCTION ROADS SHOWN ON THE PLANS IS FOR
ILLUSTRATIVE PURPOSES ONLY. TEMPORARY CONSTRUCTION ROAD MAY BE
LOCATED ANYWHERE WITHIN THE CONSTRUCTION LIMITS. SEDIMENT AND
EROSION MEASURES SHALL BE ADJUSTED ACCORDINGLY. SEE SPECIFICATIONS
REGARDING LIMITATION ON USE OF TEMPORARY CONSTRUCTION ACCESS ROADS.
4. THE CONTRACTOR SHALL TAKE ALL MEASURES NECESSARY TO PREVENT THE
DISCHARGE OF SILT, SILTED OR TURBID WATER TO THE JAMES RIVER.
MEASURES MAY INCLUDE BUT ARE NOT LIMITED TO ROCK CHECK DAMS AND
TEMPORARY SEDIMENT TRAP(S). MEASURES MAY BE LOCATED AS REQUIRED
TO PERFORM THEIR FUNCTION AND TO ALLOW THE CONSTRUCTION OF THE
WORK.
STANDARD E&S NOTES
1. 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 (UNDISTURBED) FOR LONGER THAN 14 DAYS.
PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE
LEFT DORMANT FOR MORE THAN ONE YEAR.
2. EXCESS EXCAVATION DISPOSED OF OFF THE SITE SHALL BE DISPOSED OF IN
ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK.
3. EROSION AND SEDIMENT CONTROLS SHALL BE INSTALLED IN ACCORDANCE WITH
VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND SHALL BE PLACED
PRIOR TO OR AS THE FIRST STEP OF THE LAND DISTURBING ACTIVITY.
4. EROSION AND SEDIMENT CONTROLS SHALL BE MAINTAINED SO THAT THE
SEDIMENT CARRYING RUNOFF FROM THE SITE WILL NOT ENTER STORM
DRAINAGE FACILITIES.
5. EROSION AND SEDIMENT CONTROLS SHALL BE MAINTAINED UNTIL THE
DISTURBED AREA IS STABILIZED.
6. PROPERTIES ADJOINING THE SITE SHALL BE KEPT CLEAN OF MUD OR SILT
CARRIED FROM THE SITE BY VEHICULAR TRAFFIC OR RUNOFF.
7. THE DISPOSAL OF WASTE MATERIALS REMOVED FROM EROSION AND SEDIMENT
CONTROL FACILITIES AND THE DISPOSAL OF THESE FACILITIES SHALL BE IN
ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK.
8. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH
AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION.
9. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCKPILES 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
SOIL INTENTIONALLY TRANSPORTED FROM THE PROJECT SITE.
Schnabel
ENGINEERING
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Lic No. 016431
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SCALE
RIVANNA WATER AND SEWER AUTHORITY
CROZET FLOW EQAULIZATION TANK
AND PUMPING STATION UPGRADES
GENERAL
E&S CONTROL STANDARD NOTES
PROJECT NO.: 01713.01
DWG: G 4
SHEET: 5 OF 33
N0.
DATE
APPD
REVISION
DATE: APRIL 2020
REV: 0
CONSTRUCTION OF A SILT FENCE
(WITH WIRE SUPPORT)
SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS.
TRENCH UPSLOPE ALONG THE LINE
OF POSTS.
FLOW III I
4
3. ATTACH THE FILTER FABRIC TO THE WIRE
FENCE AND EXTEND IT INTO THE TRENCH
4. BACKFILL AND COMPACT THE
EXCAVATED SOIL.
r G
FLOW
L101-
=1
EXTENSION OF FABRIC AND WIRE INTO THE TRENCH.
FILTER FABRIC
qIU WIRE
Adapted from Installation of Straw and Fabric Filter Barriers for Sediment Control, PLATE. 3.05-1
& v;
1992
0
Q
0
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0
N
0
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'n Source: Va. DSWC
0
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0
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III - 353
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vi
3.35
TABLE 3.35-A
ORGANIC MULCH MATERIALS AND APPLICATION RATES
RATES:
MULCHES:
NOTES:
per Acre
Per 1000 sq. ft.
Straw or Hay
1' - 2 tons
70 - 90 lbs.
Free from weeds and coarse
(Minimum 2
matter. Must be anchored.
tons for
Spread with mulch blower
winter cover)
or by hand.
Fiber Mulch
Minimum
35 lbs.
Do not use as mulch for
1500 lbs.
winter cover or during hot,
dry periods.* Apply as
slurry.
Corn Stalks
4 - 6 tons
185 - 275 lbs.
Cut or shredded in 4-6"
lengths. Air-dried. Do not
use in fine turf areas. Apply
with mulch blower or by
hand.
Wood Chips
4 - 6 tons
185 - 275 lbs.
Free of coarse matter. Air-
dried. Treat with 12 lbs
nitrogen per ton. Do not
use in fine turf areas. Apply
with mulch blower, chip
handler, or by hand.
Bark Chips
50 - 70 cu.
1-2 cu. yds.
Free of coarse matter. Air -
or
yds.
dried. Do not use in fine
Shredded
turf areas. Apply with
Bark
mulch blower, chip handler,
or by hand.
* When fiber mulch is the only available mulch during periods when straw
should be used, apply at a minimum rate of 2000 lbs./ac. or 45 lbs./1000 sq. ft.
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.
U
4. BACKFILL AND COMPACT
THE EXCAVATED SOIL.
II
FLOW -
SHEET FLOW INSTALLATION
(PERSPECTIVE VIEW)
I
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. DSWC PLATE. 3.05-2
Sherwood and Tyant
1992
3.32
TABLE 3.32-D
SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA
Total Lbs.
Per Acre
Minimum Care Lawn
- Commercial or Residential
175-200 lbs.
- Kentucky 31 or Turf -Type Tall Fescue
95-100%
- Improved Perennial Ryegrass
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.
150 lbs.
Low -Maintenance Slope (Steeper than 3:1)
- Kentucky 31 Fescue
108 lbs.
- Red Top Grass
2 lbs.
- Seasonal Nurse Crop *
20 lbs.
- Crownvetch * *
20 lbs.
150 lbs.
* Use seasonal nurse crop in accordance with seeding dates as stated below:
February 16th through April ......................
Annual Rye
May 1st through August 15th .....................
Foxtail Millet
August 16th through October ......................
Annual Rye
November through February 15th ...................
Winter 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 inoculated. Weeping Lovegrass may be added
to any slope
or low -maintenance mix during warmer seeding periods; add 10-20 lbs./acre in
mixes.
III - 303
STONE CONSTRUCTION ENTRANCE
GROUND
70' MIN.
A
FILTER CLOTH 6" MIN. I Al
SIDE ELEVATION
12' MIN.
70' MIN.
B WASHRACK
I F_ (OPTIONAL)
L VDOT #1 I �� POSITIVE DRAINAGE
COURSE AGGREGATE B TO SEDIMENT
TRAPPING DEVICE
* MUST EXTEND FULL WIDTH PLAN VIEW
OF INGRESS AND EGRESS
OPERATION
... SECTION A -A
REirvr umur-ij l urm mr- I r- 1JKHLV zwAUL
10,
EXISTING
PAVEMENT
5:1
MOUNTABLE BERM
(OPTIONAL)
7
10' MIN.
EXISTING
PAVEMENT
10' MIN.
SECTION B-B
SOURCE: ADAPTED from 1983 Maryland Standards for Soil erosion and Sediment Control, and Va. DSWC Plate 3.02-1
R 0 CK CHECK DAM
VDOT #1
COARSE AGGREGATE
FLOW
2-10 ACRES OF DRAINAGE AREA:
VDOT #1
COARSE AGGREGATE
FLOW
SOURCE: VA. DSWC
6"
CLASS I RIPRAP
PLATE. 3.20-1
SPACING BETWEEN CHECK DAMS
L = THE DISTANCE SUCH THAT POINTS
A AND B ARE OF EQUAL ELEVATION
SOURCE: VA. DSWC
PLATE. 3.20-2
ROCK CHECK DAMS SHALL BE INSTALLED IN SERIES WITH HEAVY
WOVEN, PERVIOUS FILTER FABRIC TURBIDITY CURTAINS. SEE
BELOW FOR DETAIL. SEE PLAN SHEETS FOR INSTALLATION
LOCATIONS.
���PLTH OF
Lf
APPROVED ��' �� SCALE RIVANNA WATER AND SEWER AUTHORITY
ROGER J. CRONIN Y
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4/24/2020 ww� CROZET FLOW EQAULIZATION TANK
N0. DATE APPD REVISION AND PUMPING STATION UPGRADES
GENERAL
E&S CONTROL STANDARD DETAILS
PROJECT NO.: 01713.01
DWG: G 5
SHEET: 6 OF 33
DATE: APRIL 2020 REV: 0
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PHASE
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CAPACITY/ PER PUMP
A
2
2100 GPM AT 50 FT TDH
B
2
2100 GPM AT 110 FT TDH
RIVANNA WATER AND SEWER AUTHORITY
TAX MAP AND PARCEL NUMBER: 514
05700-00-00-03500 (D.B. 5239 PG. 482) 2. PHASE B BYPASS PUMPING; PROVIDE BYPASS
PUMPING � R
515 OF 12" BOM NEW MANHOLE
BYPASS CONNECTION CN AS SHOWN I OTING
SHOWNIN PLAN
PL PL S \ OF \\ I % I DURING PUMP STATION IMPROVEMENTS.
13. REMOVE EXISTING MH TOP AND CONE TO ALLOW
INSTALLATION OF (2) 12" HDPE SUCTION PIPE LINE
S 8 \ I IoF h-- I AND THEN REPLACE MH CONE AND TOP AFTER
00 I h i I BYPASS PUMPING COMPLETED.
\ h I 4. PROVIDE 12" RESTRAINED DROP PIPE TO EL 492.0
\ AND DISCHARGE TO BYPASS SCREEN CHANNEL.
CONTRACTOR TO CLEAN BYPASS BAR SCREEN
DURING BYPASS PUMP OPERATION.
DEMOLITION AND PHASED BYPASS PUMPING PLAN
SCALE: 1 = 20
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DESIGNED JM APPROVED '� � PROJECT NO.: 01713.01
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CHECKED RJC 4/24/2020
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05908
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FENCE (TYP) 01
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zZ � _ TRAILER, AND/ OR MATERIAL 3/C3 C
HANDLING AND STORAGE AREA
IPARKING LOT - WP07 BM C // a
c / i (21 A)
/ WATERTIGHT EXISTING CHEMICAL
1499a/j i i � I � \ '•
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VALV FEED I / /
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100-YEAR WP03 0, \ JIB CRANE BM B PS NO.4 /
FLOODPLAIN LIMITS _50� WP04 t ODOR CONTROL /
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EXISTING /
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o a COUNTOUR _� _ WP05 1 FLUSH VALVE VAULT WP17
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(TYP) \• - EXISTING
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= DESIGNED JM APPROVED PROJECT NO.: 01713.01
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DRAWN DRH Li
c No. 016431 20 0 20 40 FT Cj 2
,_ 9020 STONY POINT PARKWAY, SUITE 475 I I 1 1 1 "=20' C ROZ ET FLOW EQAU LI ZATI O N TANK SHEET: 10 OF 33
j RICHMOND, VIRGINIA 23235 A� 4/24/2020
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SHEETING
4" MIN. 12" MAX. CL
W/ ECCENTRIC CONE EXISTING GRADE
2" OR 3" REINFORCED C.I. FRAME & COVER
CONC. ADJUSTING RINGS. WATERTIGHT — — — — — — — — — — — —
8" 8" SET FRAME AND/OR ADJUSTING RINGS — — L — — — — — — — — —
IN CEMENT MORTAR BED. NON -SAG — — — — — — — — — — — — — — —
JOINT SEALER SHALL BE USED IN — — — — — — — — —
AREAS SUBJECT TO FLOODING. - — — — — -- — _ _ _ _ SLOPE CONFORMING
------------ %/
VARIES — — — — — — REQUIREMENTS
rz -�!---------------`�- SEE PROFILE
L — — — —
— — COMPACTED
° - — — — — — — — — — — — — COMMON FILL
—
° - — — — — — — — — — — TRENCH BACKFILL
—
EXCEPT WHERE
2411 I.D. / / / 0j ALTERNATIVE FILL
IS SPECIFIED OR SHOWN
NEW PIPELINE CL-
-------------------------------
°
ALL JOINTS TO HAVE "0"
RING GASKET, GASKETS
SHALL BE PER ATSM C443 PIPE BEDDING /
° PIPE O.D./8
PLASTIC LINING (VDOT SIZE NO. 57) /A OR 4" MIN
d
° d —
S AUTHORIZED
IN WRITING
BY THE
ENGINEER
d PAYMENT LIMITS FOR AUTHORIZED
ADDITIONAL EXCAVATION AND
--------------------------Z -- d RESILIENT CONNECTOR
PER ATSM C923 SELECT FILL MATERIAL SHEETED UNSHEETED
TRENCH TRENCH PAY ENT LIMITS FOR
5„ MIN AUTHORIZED FILTER CLOTH
48" TO 72" DIA c STUB
°d
PIPE O.D. + 3'-0"
BENCH 3" NOTES:
SLOPE 1. BENCH SHALL BE CLASS C
d ---------- CONCRETE.
CONCRETE.
O
U
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DOWELEI
BASE SL
Ln ... ...... .
BEDDING
N
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12" MIN \ �,t I 12"-18"
I
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�:. DIA MIN
d . i d 9 .. °oOOOOOOOOOOOOO(
°. ° d ° d 00 QOO QOO QOO
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2. MANHOLE CONSTRUCTION SHALL
CONFORM TO ASTM SPEC. C-478.
"SUPPORT PIPE ON #57
STONE BEDDING
12" OF STONE BEDDING
.DETAIL 1 ZC6 EXISTING GRADE
STANDARD 48" TO 72" PRECAST CONCRETE MAN H 0 L
NOT TO SCALE
DETAIL 6 f C6
0
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BEDDING
JCE IS GREATER THAN
IARD DROP CONNECTION
IPE CROWNS MATCH
CTION PIPE SHALL BE
N MANHOLE DROP CONNECTION
DETAIL 2/C6
TRENCH AND PIPE BEDDING
NOT TO SCALE
EASEMENT WIDTH VARIES (CLEARING LIMITS)
NORMAL WIDTH 20'
8'-0»
CL ROAD
6"
COMPACTED
VDOT 21A
12" COMPACTED
#5 AGGREGATE-
L COMPACT SUBGRADE WITH
ROLLER. EXCAVATE SOFT
SPOTS AND REPLACE WITH
COMPACTED AGGREGATE.
DETAIL 4/C6
ACCESS ROAD
NOT TO SCALE
LLJ
U' CL
Z d
w w
cl. O
O LL.
DETAIL 7/C6
MANHOLE INVERT
NEENAH R-6460-G1 WATERTIGHT C.I.
FRAME & COVER OR EQUAL
r �
3'-0"
CLEAR OPENING
PLASTIC LINING
5'-0"
NEW PRECAST
MANHOLE
DETAIL 8/C6 MH-1 BY-PASS
PUMP SUCTION MANHOLE
1 /2" = 1'-0"
F_
z °
° LL1 LZ d .
J d.
LL. LL_
LLI Z
INFLUENT
EFFLUENT PIPE
PIPE
z_ d
° MANHOLE
° d d d °
° , d
o ° °
z_
O
iD
NOTES:
1. CONCRETE CHANNEL NOT SHOWN.
7/8"
p-�
�_oio'::.:io.
EW
PLAN VIEW
DETAIL 3 C6
PUMPING STATION NEW 24" SEWER INLET
SCALE: 1/2" = 1'-O"
27 1/2- DIA 1 [698mm] [37mm] 1/2-
(4) i" (25mm) DIA HOLES 7"
ON 226 1/4" DIA ,d4 [178mm]BOLTC*I [667mm] �I
24" DIA I '
I` [614mm] ^1
28 3/16" DIA
[716mm]
36" DIA
[914mm]
(4) 1 " (25mm) DIA HOLES
ON 32 3 4" (834mm) DIA
BOLT CIRCLE.
1 1/2" (38mm) LETTERS FRAME SECTION
(RECESSED FLUSH)
26"
[660mm] 1 1/2"
13/16" [38mm]
[20mm]
CAM BOLT
SEE ASSEMBLY 141
3 1 /8' 1/2"
DETAIL [79mm] [13mm] 1/4" (6mm) DIA
(2) coRED 22 13/16" NEOPRENE GASKET
PICKBARS [579mm]
0 25"
1 1/8" (29mm) DIA BOSS [635mm]
O.D. OF GKT GROOVE
SECTION VIEW
3 13/16"
2 1 /8"
[97mm]
[54mm]
1 3/8"
(2) WSHR 1/16 X 5/8 X 1 1/2
0 11/16"
35mm] 9/16"
PART# 00981045
[1/16
[14mm]
(RUBBER2) BLT HEX 5/8-11X3 1/2 SS
PART# 00981250
(2) WSHR 5/8 ID 1.50 OD SS
PART# 00981318
.1800"
1
[5mm] "
2400
1 /2"
[42mm ]
(2) NUT HX 5/8-11 ZN NYLK
[6mm]
[13mm] 63 DIA. STAINLESS STEEL ROD
PART# 00981284
(2) NUT HX JAM 5/8-11 ZN
PART# 00981228
PICKBAR & LOCKLUG
HOLE DETAIL
(2) 1935R LOCK LUG
(SHORT) PART# 00193585
LOCK LUG ASSEMBLY
NOTES:
1. ALL MANHOLES WITHIN 100 YEAR FLOODPLAIN OR LOCATED IN AREAS SUBJECT TO FLOODING SHALL HAVE WATERTIGHT FRAME & COVER.
2. ALTERNATIVE DESIGN FOR WATERTIGHT COVERS WILL BE CONSIDERED.
3. COVERS SHALL BE FIXED TO FRAMES WITH LOCKING LUGS OR SIMILAR ASSEMBLY.
1-1 "' NOT TO SCALE NOT TO SCALE REVISION OCT 2015 TYPICAL WATERTIGHT DRAWING NUMBER:
DATE: MANHOLE FRAME & COVER
is Schnabol SCALE: TALI° RIVANNA WATER AND SEWER AUTHORITY SEWER 6
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DWG:
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9020 STONY VIR6INA PARKWAY, SUITE 475 A CROZET FLOW EQAULIZATION TANK SHEET: 14 OF 33
RICH0 CHECKED RJC �0 4�24�2020 w
S NO. DATE APPD REVISION AND PUMPING STATION UPGRADES D ETAI LS DATE: APRIL 2020 REv: o
30"x3O" ACCESS 9" x 9" x 2"
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