HomeMy WebLinkAboutWPO202100071 Plan - VSMP 2021-12-151
DRAWING INDEX
2
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5
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C
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C
F.,
GENERAL
G0.01 COVER SHEET
CIVIL
CO.01-00.02
GENERAL NOTES
C0.03
E&SC NOTES
C0.04-00.05
E&SC DETAILS
C0.06
SOILS MAP
CO.07
OVERALL PLAN
C1.01-C1.03
EXISTING CONDITIONS
C2.01-C2.02*
DEMOLITION PLAN
C2.03-C2.04
E&SC PHASE I PLAN
C2.05-C2.06
E&SC PHASE II PLAN
C3.01-C3.02*
SITE PLAN
C3.03-C3.04
GRADING & DRAINAGE PLAN
C3.05-C3.06*
UTILITYPLAN
C4.01-C4.02*
ROAD PLAN & PROFILE
C4.03-C4.04*
WATERLINE PROFILE
C4.05*
SANITARY SEWER PROFILE
C4.06-C4.07
STORM SEWER PROFILE
C4.08
STORM SEWER CALCULATIONS
C4.09
INLET DRAINAGE AREA MAP
C5.01-05.06
CONSTRUCTION DETAILS
C6.01
STORMWATER NARRATIVE
C6.02-C6.03
EXISTING LAND USE
C6.04-C6.05
PROPOSED LAND USE
C6.06
EXISTING DRAINAGE AREA MAP
C6.07
PROPOSED DRAINAGE AREA MAP
C6.08
STORMWATER CALCULATIONS
C6.09
SEDIMENT BASIN DETAIL
C6.10
SWM DETENTION BASIN DETAIL
*SHEET NOT INCLUDED IN THIS VSMP PLAN SET, BUT CAN BE FOUND IN SITE PLAN SET.
PROPERTY INFORMATION
TAX MAP/PARCEL ID:
OWNER:
ALBEMARLE COUNTY ZONING CLASSIFICATION
ALBEMARLE COUNTY MAGISTERIAL DISTRICT:
PROPOSED BUILDING MAXIMUM HEIGHT:
FEMA FLOOD INSURANCE RATE MAP:
OVERLAY DISTRICTS:
NON-INFILL: SETBACKS
FRONT -MINIMUM:
SIDE -MINIMUM:
REAR -MINIMUM:
PARCEL ACREAGE:
09100-00-00-00100
ALBEMARLE COUNTY SERVICE AUTHORITY
R1 - RESIDENTIAL
SCOTTSVILLE DISTRICT
35'
ZONE X; AREAS TO BE DETERMINED
OUTSIDE THE 0.2%ANNUAL CHANCE FLOODPLAIN
AIRPORT IMPACT AREA, ENTRANCE CORRIDOR,
STEEP SLOPES - MANAGED
5'
5'
20'
9.54 AC
PROPERTY NOT WITHIN AN ALBEMARLE COUNTY AND / OR CITY OF CHARLOTTESVILLE WATER
SUPPLY WATERSHED
CODE REFERENCES
VIRGINIA UNIFORM STATEWIDE BUILDING CODE - 2015
DEPARTMENT OF ENVIRONMENTAL QUALITY
VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK- 1992
NATIONAL ELECTRICAL CODE - 2011
ADA STANDARDS - 2010
CONTACTS
OWNER:
ALBEMARLE COUNTY SERVICE AUTHORITY
ALEXANDER MORRISON, PE
168 SPOTNAP ROAD
CHARLOTTESVILLE, VIRGINIA22911
PH. (434) 977-4511 EXT. 116
FAX (434)979-0698
AMORRISON@SERVICEAUTHORITY.ORG
CIVIL ENGINEER:
DEWBERRY ENGINEERS INC.
KEVIN PENNOCK, PE
4805 LAKE BROOK DRIVE, SUITE 200
GLEN ALLEN, VIRGINIA 23060
PH. (804) 205-3338
FAX (804) 290-7928
KPENNOCK@DEWBERRY.COM
SUBMITTAL
SET NUMBER
❑ PRELIMINARY ❑ CONSTRUCTION
■ APPROVAL ❑ REVISION
❑ BIDDING ❑ RECORD
ALBEMARLE COUNTY SERVICE AUTHORITY
AVON MAINTENANCE YARD
VICINITY MAP
VSMP PLAN
ALBEMARLE COUNTY, VIRGINIA
ACSA PROJECT NO.: 2019-11
SCALE: 1" = 250'
Dewberry Engineers Inc.
4805 Lake Brook Dr., Suite 200
Glen Allen, VA 23060
Phone: (804) 290-7957
Fax: (804) 290-7928
www.dewberry.com
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SCALE: V = 250'
REVISIONS
No. DATE BY Description
DRAWN BY NTF
APPROVED BY KAP
CHECKED BY ACO
DATE DECEMBER 3, 2021
TITLE
VSMP COVER
SHEET
PROJECT NO. 50119298
G0m01
SHEET NO.
C
N
9
F.,
1 2
1 3
GENERAL NOTES
GENERAL NOTES (CONTINUED)
_
GENERAL
EXISTING CONDITIONS (CONTINUED)
S
1.
THE "MISS UTILITY LAW' REQUIRES THE CONTRACTOR TO CALL (811 OR 1-800-552-7001) AT LEAST 3 WORKING DAYS IN ADVANCE OF THE
3.
EXISTING UNDERGROUND UTILITIES BASED ON ACCUMARK SUBMITTAL DATED JANUARY 8, 2020. ACCUMARK, INC. PERFORMED AN
1.
PLANNED WORK TO ALLOW TIME FOR MARKING, THAT THE MARKS BE RESPECTED AND PROTECTED, AND THAT EXCAVATION BE
UNDERGROUND UTILITY DESIGNATION EFFORT IN DECEMBER 2019 WITHIN THE PROJECT LIMITS SPECIFIED BY THE CLIENT.
COMPLETED CAREFULLY.
4.
EXISTING CONDITIONS BASED ON ALBEMARLE COUNTY GIS DOWNLOADED 1/16/2020.
2.
CONTRACTOR SHALL BE RESPONSIBLE FOR SITE SECURITY, INCLUDING ON- AND OFF -SITE MATERIALS STORAGE, AND JOB SAFETY.
CONSTRUCTION WORK AND MATERIALS SHALL COMPLY WITH LOCAL REGULATIONS, COMMONWEALTH OF VIRGINIA REGULATIONS, AND
5.
EXISTING CONDITIONS BASED ON MONTICELLO HIGH SCHOOL UTILITY RECORD DRAWINGS, REV. 4-17-00 BY TIMMONS
2.
CODES, AND O.S.H.A. STANDARDS.
6.
GEOTECHNICAL ENGINEERING STUDY PREPARED BY SCHNABEL ENGINEERING DATED FEBRUARY 7, 2020.
3.
ACCESSIBLE ROUTES, PARKING SPACES, RAMPS, SIDEWALKS AND WALKWAYS SHALL BE CONSTRUCTED IN CONFORMANCE WITH THE
FEDERAL AMERICANS WITH DISABILITIES ACT, STATE LAWS AND REGULATIONS, AND LOCAL REGULATIONS (WHICHEVER ARE MORE
GRADING
3.
STRINGENT).
1.
PRIOR TO START OF CONSTRUCTION, CONTRACTOR SHALL VERIFY EXISTING PAVEMENT ELEVATIONS AT INTERFACE WITH PROPOSED
PAVEMENTS AND EXISTING GROUND ELEVATIONS ADJACENT TO DRAINAGE OUTLETS TO ASSURE PROPER TRANSITIONS BETWEEN
4.
CONTRACTOR SHALL IMMEDIATELY REPORT ANY DISCREPANCIES BETWEEN EXISTING CONDITIONS AND CONTRACT DOCUMENTS TO THE
EXISTING AND PROPOSED FACILITIES.
P
OWNER AND ENGINEER.
1.
2.
CONTRACTOR SHALL ADJUST AND/OR SAW CUT EXISTING PAVEMENT AS NECESSARY TO ENSURE A SMOOTH TRANSITION AND MAINTAIN
5.
WITHIN THE LIMITS OF THE BUILDING FOOTPRINT, THE SITE CONTRACTOR SHALL PERFORM EARTHWORK OPERATIONS REQUIRED UP TO
POSITIVE DRAINAGE.
SUBGRADE ELEVATIONS.
3.
CONTRACTOR SHALL ENSURE POSITIVE DRAINAGE AWAY FROM BUILDINGS.
2.
6.
WORK WITHIN THE LOCAL RIGHTS -OF -WAY SHALL CONFORM TO LOCAL MUNICIPAL STANDARDS. WORK WITHIN STATE RIGHTS -OF -WAY
SHALL CONFORM TO THE LATEST VIRGINIA DEPARTMENT OF TRANSPORTATION ROAD AND BRIDGE STANDARDS AND SPECIFICATIONS.
4.
ANY PROPERTY MONUMENTATION DISTURBED DURING CONSTRUCTION SHALL BE SET OR RESET BY A PROFESSIONAL LICENSED
SURVEYOR, PAID BY THE CONTRACTOR, AT NO EXPENSE TO THE OWNER.
7.
UPON AWARD OF CONTRACT, CONTRACTOR SHALL MAKE NECESSARY CONSTRUCTION NOTIFICATIONS AND APPLY FOR AND OBTAIN
3.
NECESSARY PERMITS, PAY FEES, AND POST BONDS ASSOCIATED WITH THE WORK INDICATED ON THE DRAWINGS, IN THE
LAYOUT AND MATERIALS
SPECIFICATIONS, AND IN THE CONTRACT DOCUMENTS. DO NOT BEGIN WORK WITHOUT APPROPRIATE PERMITS.
1.
SYMBOLS AND LEGENDS OF PROJECT FEATURES ARE GRAPHIC REPRESENTATIONS AND ARE NOT NECESSARILY SCALED TO THEIR
ACTUAL DIMENSIONS OR LOCATIONS ON THE DRAWINGS. THE CONTRACTOR SHALL REFER TO THE DETAIL SHEET DIMENSIONS,
4.
8.
CONTRACTOR SHALL BE RESPONSIBLE FOR ALL RELOCATIONS, (UNLESS OTHERWISE NOTED ON PLANS) INCLUDING BUT NOT LIMITED TO,
MANUFACTURER'S LITERATURE, SHOP DRAWINGS AND FIELD MEASUREMENTS OF SUPPLIED PRODUCTS FOR LAYOUT OF THE PROJECT
ALL UTILITIES, STORM DRAINAGE, SIGNS, TRAFFIC SIGNALS & POLES, ETC., AS REQUIRED. ALL WORK SHALL BE IN ACCORDANCE WITH
FEATURES.
GOVERNING AUTHORITIES' REQUIREMENTS AND PROJECT SPECIFICATIONS AND SHALL BE APPROVED BY SUCH. ALL COST SHALL BE
INCLUDED IN BASE BID.
2.
CONTRACTOR SHALL NOT RELY SOLELY ON ELECTRONIC VERSIONS OF PLANS, SPECIFICATIONS AND DATA FILES THAT ARE OBTAINED
FROM THE DESIGNERS, BUT SHALL VERIFY LOCATION OF PROJECT FEATURES IN ACCORDANCE WITH THE PAPER COPIES OF THE PLANS
E
9.
TRAFFIC SIGNAGE AND PAVEMENT MARKINGS SHALL CONFORM TO THE MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES, LATEST
AND SPECIFICATIONS THAT ARE SUPPLIED AS PART OF THE CONTRACT DOCUMENTS.
1.
EDITION.
UTILITIES
10.
AREAS OUTSIDE THE LIMITS OF PROPOSED WORK THAT ARE DISTURBED BY THE CONTRACTOR'S OPERATION SHALL BE RESTORED BY
1.
THE LOCATIONS, SIZE AND TYPES OF EXISTING UTILITIES ARE SHOWN AS AN APPROXIMATE REPRESENTATION ONLY. THE OWNER OR ITS
THE CONTRACTOR TO THEIR ORIGINAL CONDITION AT THE CONTRACTOR'S EXPENSE.
REPRESENTATIVE(S) HAVE NOT INDEPENDENTLY VERIFIED THIS INFORMATION AS SHOWN ON THE PLANS. THE UTILITY INFORMATION
S
SHOWN DOES NOT GUARANTEE THE ACTUAL EXISTENCE, SERVICEABILITY, OR OTHER DATA CONCERNING THE UTILITIES, NOR DOES IT
1.
11.
IN THE EVENT THAT SUSPECTED CONTAMINATED SOIL, GROUNDWATER, AND OTHER MEDIA ARE ENCOUNTERED DURING EXCAVATION
GUARANTEE AGAINST THE POSSIBILITY THAT ADDITIONAL UTILITIES MAY BE PRESENT THAT ARE NOT SHOWN ON THE PLANS. PRIOR TO
AND CONSTRUCTION ACTIVITIES BASED ON VISUAL, OLFACTORY (SMELL), OR OTHER EVIDENCE, THE CONTRACTOR SHALL STOP WORK IN
ORDERING MATERIALS AND BEGINNING CONSTRUCTION, THE CONTRACTOR SHALL VERIFY AND DETERMINE THE EXACT LOCATIONS,
THE VICINITY OF THE SUSPECT MATERIAL TO AVOID FURTHER SPREADING OF THE MATERIAL AND SHALL NOTIFY THE OWNER AND
SIZES AND ELEVATIONS OF THE POINTS OF CONNECTIONS TO EXISTING UTILITIES AND SHALL CONFIRM THAT THERE ARE NO
ENGINEER IMMEDIATELY SO THAT THE APPROPRIATE TESTING AND SUBSEQUENT ACTION CAN BE TAKEN.
INTERFERENCES WITH EXISTING UTILITIES AND THE PROPOSED UTILITY ROUTES, INCLUDING ROUTES WITHIN PUBLIC RIGHTS OF WAY.
12.
CONTRACTOR SHALL PREVENT DUST, SEDIMENT, AND DEBRIS FROM EXITING THE SITE AND SHALL BE RESPONSIBLE FOR CLEANUP,
2.
WHERE AN EXISTING UTILITY IS FOUND TO CONFLICT WITH THE PROPOSED WORK, OR EXISTING CONDITIONS DIFFER FROM THOSE
2.
REPAIRS AND CORRECTIVE ACTION IF SUCH OCCURS AT THE CONTRACTOR'S EXPENSE WITH NO ADDITIONAL COST TO THE OWNER.
SHOWN SUCH THAT THE WORK CANNOT BE COMPLETED AS INTENDED THE LOCATION ELEVATION AND SIZE OF THE UTILITY SHALL BE
ACCURATELY DETERMINED WITHOUT DELAY BY THE CONTRACTOR, AND THE INFORMATION FURNISHED IN WRITING TO THE OWNER'S
13.
DAMAGE RESULTING FROM CONSTRUCTION LOADS AND EQUIPMENT SHALL BE REPAIRED BY THE CONTRACTOR AT NO ADDITIONAL COST
REPRESENTATIVE(S) FOR THE RESOLUTION OF THE CONFLICT. CONTRACTOR'S FAILURE TO NOTIFY PRIOR TO PERFORMING ADDITIONAL
TO OWNER.
WORK RELEASES OWNER FROM OBLIGATIONS FOR ADDITIONAL PAYMENTS WHICH OTHERWISE MAY BE WARRANTED TO RESOLVE THE
3.
CONFLICT.
14.
CONTRACTOR SHALL CONTROL STORMWATER RUNOFF DURING CONSTRUCTION TO PREVENT ADVERSE IMPACTS TO ON -SITE AND
OFF -SITE AREAS, AND SHALL BE RESPONSIBLE FOR REPAIRING RESULTING DAMAGES, IF ANY, AT NO COST TO OWNER.
3.
RIM ELEVATIONS FOR SEWER MANHOLES, WATER VALVE COVERS, GAS GATES, ELECTRIC AND TELEPHONE PULL BOXES, AND MANHOLES,
4.
AND OTHER SUCH ITEMS, ARE APPROXIMATE AND SHALL BE SET/RESET AS FOLLOWS:
15.
THIS PROJECT DISTURBS MORE THAN ONE ACRE OF LAND AND FALLS WITHIN THE VIRGINIA STORMWATER MANAGEMENT PROGRAM
A. PAVEMENTS AND CONCRETE SURFACES: FLUSH
(VSMP) AND CONSTRUCTION GENERAL PERMIT (CGP) PROGRAM AS ADMINISTERED BY THE VIRGINIA DEPARTMENT OF ENVIRONMENTAL
B. ALL SURFACES ALONG ACCESSIBLE ROUTES: FLUSH
5.
QUALITY (DEQ) UNDER THE JURISDICTION OF THE EPA. PRIOR TO THE START OF CONSTRUCTION, THE CONTRACTOR SHALL TRANSFER
C. LANDSCAPE, LOAM AND SEED, AND OTHER EARTH SURFACE AREAS: ONE INCH ABOVE SURROUNDING AREA AND TAPER EARTH TO
THE CGP NOTICE OF INTENT FROM THE OWNER TO THE CONTRACTOR WITH DEC. A COPY OF TRANSFER FORM SHALL BE PROVIDED TO
THE RIM ELEVATION.
THE ENGINEER PRIOR TO ANY LAND DISTURBANCE. THE STORMWATER POLLUTION PREVENTION PLAN (SWPPP) SHALL BE MAINTAINED
6.
ONSITE BY THE CONTRACTOR.
4.
THE LOCATION SIZE, DEPTH AND SPECIFICATIONS FOR CONSTRUCTION OF PROPOSED PRIVATE UTILITY SERVICES SHALL BE INSTALLED
ACCORDING TO THE REQUIREMENTS PROVIDED BY, AND APPROVED BY, THE RESPECTIVE UTILITY COMPANY (GAS, TELEPHONE,
7.
16.
THE CONTRACTOR SHALL ADHERE TO ALL TERMS CONDITIONS AND REQUIREMENTS AS OUTLINED IN THE VSMP GENERAL PERMIT FOR
ELECTRIC,FIRE ALARM ETC.. FINAL DESIGN LOAD AND LOCATIONS TO BE COORDINATED WITH OWNER AND ARCHITECT.
) S S COO O
STORMWATER DISCHARGE ASSOCIATED WITH CONSTRUCTION ACTIVITIES.
8.
5.
CONTRACTOR SHALL COORDINATE, AND MAKE ARRANGEMENTS FOR, AND SHALL BE RESPONSIBLE FOR PAYING FEES FOR POLE AND/OR
17.
ALL CONTRACTOR LAYDOWN AREAS SHALL BE LOCATED WITHIN THE LIMITS OF DISTURBANCE LINE AND PROTECTED WITH SAFETY
GUY WIRE RELOCATION/ALTERATION AND ADJUSTMENT OF ELECTRIC, TELEPHONE, CABLE, AND ANY OTHER PRIVATE UTILITIES,
9.
AND/OR EROSION CONTROL MEASURES.
WHETHER WORK IS PERFORMED BY CONTRACTOR OR BY THE UTILITY COMPANY.
18.
IF ANY EXISTING STRUCTURES TO REMAIN ARE DAMAGED DURING CONSTRUCTION, IT SHALL BE THE CONTRACTOR'S RESPONSIBILITY TO
6.
UTILITY PIPE MATERIALS SHALL BE AS FOLLOWS, UNLESS OTHERWISE NOTED ON THE PLAN. REFER TO THE ACSA WATER AND SEWER
REPAIR AND/OR REPLACE THE DAMAGED STRUCTURE AS NECESSARY TO RETURN IT TO EXISTING CONDITIONS OR BETTER, AT THE
CONSTRUCTION SPECIFICATIONS.
CONTRACTOR'S EXPENSE, WITH NO ADDITIONAL COST TO THE OWNER.
A. WATERLINE SHALL BE DUCTILE IRON (STD.). ALL FITTINGS SHALL BE DUCTILE IRON (STD.).
1.
B. GRAVITY SANITARY SEWER MAIN SHALL BE PVC (STD.).
DEMOLITION
C. STORM PIPE SHALL BE RCP (STD.).
1.
CONTRACTOR SHALL REMOVE AND DISPOSE OF EXISTING MANMADE SURFACE FEATURES WITHIN THE LIMIT OF WORK INCLUDING
D. ELECTRICAL CONDUIT SHALL BE PVC (STD.).
2,
PAVEMENTS, SLABS, CURBING, FENCES, UTILITY POLES, SIGNS, ETC. UNLESS INDICATED OTHERWISE ON THE DRAWINGS. REMOVE AND
DISPOSE OF EXISTING UTILITIES, AND UNSUITABLE MATERIAL WITHIN THE PROPOSED BUILDING FOOTPRINT AND TEN FEET BEYOND AND
7.
CONTRACTOR SHALL COORDINATE WITH ELECTRICAL CONTRACTOR AND SHALL FURNISH EXCAVATION, INSTALLATION AND BACKFILL OF
BENEATH PROPOSED EXTERIOR COLUMNS, PER THE CONTRACT DOCUMENTS.
ELECTRICAL FURNISHED SITEWORK RELATED ITEMS SUCH AS PULL BOXES, CONDUITS, DUCT BANKS, LIGHT POLE BASES, AND CONCRETE
3,
PADS. CONTRACTOR SHALL FURNISH CONCRETE ENCASEMENT OF DUCT BANKS IF REQUIRED BY THE UTILITY COMPANY AND AS
2.
EXISTING UTILITIES SHALL BE TERMINATED, UNLESS OTHERWISE NOTED, IN CONFORMANCE WITH LOCAL, STATE AND INDIVIDUAL UTILITY
INDICATED ON THE DRAWINGS.
COMPANY STANDARDS, SPECIFICATIONS AND DETAILS. THE CONTRACTOR SHALL COORDINATE UTILITY SERVICE DISCONNECTS WITH
UTILITY REPRESENTATIVES. CONTRACTOR SHALL PROVIDE NOTICE TO THE UTILITY PROVIDERS 10 WORKING DAYS IN ADVANCE.
8.
ALL FILL MATERIAL IS TO BE IN PLACE AND COMPACTED TO TOP OF PIPE ELEVATION BEFORE INSTALLATION OF PROPOSED UTILITIES.
4.
3.
CONTRACTOR SHALL DISPOSE OF DEMOLITION DEBRIS IN ACCORDANCE WITH APPLICABLE FEDERAL, STATE AND LOCAL REGULATIONS,
9.
CONTRACTOR SHALL NOTIFY THE UTILITY AUTHORITY'S INSPECTOR 72 HOURS IN ADVANCE OF START OF WORK AND RECEIVE
ORDINANCES AND STATUTES.
INSPECTOR APPROVAL BEFORE CONNECTING TO ANY EXISTING UTILITY LINE.
5,
4.
THE DEMOLITION PLAN, IF INCLUDED, IS INTENDED TO AID THE CONTRACTOR DURING THE BIDDING AND CONSTRUCTION PROCESS AND IS
10.
UNDERGROUND UTILITIES SHALL BE INSTALLED, INSPECTED AND APPROVED BY GOVERNING AUTHORITY OR OWNER'S REPRESENTATIVE
6,
NOT INTENDED TO DEPICT EACH AND EVERY ELEMENT OF DEMOLITION. THE CONTRACTOR IS RESPONSIBLE FOR IDENTIFYING THE
PRIOR TO BACKFILLING.
DETAILED SCOPE OF DEMOLITION BEFORE SUBMITTING ITS BID/PROPOSAL TO PERFORM THE WORK AND SHALL MAKE NO CLAIMS AND
7,
SEEK NO ADDITIONAL COMPENSATION FOR CHANGED CONDITIONS OR UNFORESEEN SITE CONDITIONS RELATED TO ANY CONDITIONS
11.
ALL CONCRETE FOR ENCASEMENTS SHALL HAVE A MINIMUM 28 DAY COMPRESSION STRENGTH AT 3000 PSI.
DISCOVERED DURING EXECUTION OF THE WORK.
12.
CONTRACTOR IS RESPONSIBLE FOR COMPLYING WITH STATE AND LOCAL REGULATIONS AND SPECIFICATIONS WITH REGARDS TO
8.
5.
UNLESS OTHERWISE SPECIFICALLY PROVIDED IN THE CONTRACT DOCUMENTS, THE ENGINEER HAS NOT PREPARED DESIGNS FOR AND
MATERIALS AND INSTALLATION OF THE WATER AND SEWER LINES.
SHALL HAVE NO RESPONSIBILITY FOR THE PRESENCE, DISCOVERY, AND REMOVAL, ABATEMENT OR DISPOSAL OF HAZARDOUS
9.
MATERIALS. THE ENGINEER SHALL NOT BE RESPONSIBLE FOR ANY CLAIMS OF LOSS, DAMAGE, EXPENSE, DELAYS, INJURY, OR DEATH
13.
CONTRACTOR IS RESPONSIBLE FOR ALL NECESSARY INSPECTIONS AND/OR CERTIFICATIONS REQUIRED BY CODES AND/OR GOVERNING
ARISING FROM THE PRESENCES OF HAZARDOUS MATERIAL AND CONTRACTOR SHALL INDEMNIFY AND HOLD HARMLESS THE ENGINEER
AUTHORITIES. THIS AND THE FINAL CONNECTIONS OF THE SERVICE SHALL BE COMPLETED 30 DAYS PRIOR TO OWNER POSSESSION.
FROM ANY CLAIMS MADE IN CONNECTION HEREWITH.
1
14.
CONTRACTOR SHALL COORDINATE WITH ALL PRIVATE UTILITY COMPANIES FOR INSTALLATION REQUIREMENTS AND SPECIFICATIONS OF
6.
CONCRETE DEMOLITION SHOWN AT A MINIMUM. MUST EXTEND TO THE NEAREST CONTROUEXPANSION JOINT. CONTRACTOR
PRIVATE UTILITIES.
1
RESPONSIBLE FOR DOCUMENTING ALL EXISTING DECORATIVE CONCRETE SCORING PATTERNS. CONTRACTOR SHALL SUBMIT ALL
DOCUMENTATION TO OWNER/ENGINEER FOR APPROVAL PRIOR TO CONSTRUCTION. CONTRACTOR SHALL RESTORE ALL CONCRETE TO
15.
PROVIDE DETECTABLE WARNING TAPE (4" MIN. WIDTH) OVER ALL NON-FERROUS PIPE. FOR DIRECTIONAL DRILL APPLICATIONS,
MATCH EXISTING SCORE JOINT PATTERN.
CONTRACTOR SHALL INSTALL #4 AWG TRACER WIRE. TRACER WIRE SHALL TERMINATE AT ACCESSIBLE STRUCTURES AT DIRECTIONAL
1
DRILL START/TERMINATION POINTS.
7.
SAW CUT DUST CONTROL:
A. DO NOT ALLOW WET SAWING, GRINDING, AND DRILLING/CORING GENERATED WASTEWATER TO ENTER STORM DRAINS OR
DRAINAGE
WATERCOURSES WITH FIRST BEING FILTERED. IN ADDITION, THE SEDIMENT SHALL NOT BE ALLOWED TO REMAIN ON THE PAVEMENT
1.
PRIOR TO START OF CONSTRUCTION, CONTRACTOR SHALL VERIFY EXISTING GROUND ELEVATIONS ADJACENT TO DRAINAGE OUTLETS
AFTER THE OPERATION HAS CEASED.
TO ASSURE PROPER TRANSITIONS BETWEEN EXISTING AND PROPOSED FACILITIES.
1
B. BLOCK DRAINS - LOCATE ALL NEARBY STORM DRAIN INLETS, CULVERTS, AND CATCH BASINS THROUGH WHICH SLURRY
DISCHARGES MAY ENTER A WATERWAY. PREVENT UNFILTERED CONCRETE SLURRY FROM ENTERING STORM DRAINS OR
2.
PRECAST STRUCTURES MAY BE USED AT CONTRACTOR'S OPTION.
RECEIVING WATERS BY PLACING SILT FENCE, STRAW BALES, STRAW WATTLES (FIBER ROLLS), SANDBAGS, OR GRAVEL DAMS
AROUND STORM STRUCTURES.
3.
STORM PIPE SHALL BE AS FOLLOWS UNLESS OTHERWISE NOTED: CLASS III RCP.
1
C. MINIMIZE SLURRY MOVEMENT - SLURRY AND SEDIMENT FROM SAW CUTTING OPERATIONS SHOULD BE CONFINED TO THE
IMMEDIATE WORK AREA BY USING SAND BAGS, TEMPORARY BERMS OR OTHER DIVERSION STRUCTURES. ALL CONTROLS SHOULD
4.
PRIOR TO JOB COMPLETION, STORM PIPES SHALL BE CLEANED OUT TO REMOVE ALL SILT AND DEBRIS BUILD-UP.
BE PUT IN PLACE BEFORE THE START OF CUTTING OPERATIONS. MAKE SURE THE CONTROLS CAN HANDLE THE AMOUNT OF WATER
THAT WILL BE USED. MINIMIZE THE TRACKING OF SLURRY OFF SITE BY CARS AND PEDESTRIANS.
5.
ALL STORM PIPE ENTERING STRUCTURES SHALL BE GROUTED OR KOR-N-SEAL CONNECTIONS TO ASSURE CONNECTION AT STRUCTURE
1
D. REMOVE SLURRY - REMOVE AND TREAT ALL SLURRY AND RUNOFF FROM THE SAW CUTTING OPERATION AS SOON AS POSSIBLE.
IS WATERTIGHT.
DON'T LEAVE SLURRY TO BE WASHED AWAY BY RAIN UNTREATED OR TO SET. SWEEP UP OR SHOVEL AND DISPOSE OF RESIDUAL
1
SEDIMENT RAPPED BEHIND CONTROL MEASURES.
6.
ALL RCP STORM PIPE SHALL HAVE 0-RING GASKETS FOR WATER TIGHTNESS. SCHEDULE 40 PVC SHALL HAVE SOLVENT WELD JOINTS.
E. RATHER THAN DOING ON -SITE FILTRATION OF SAW CUTTING SLURRIES, THE MATERIAL CAN BE CONTAINED, VACUUMED AND
HDPE SHALL HAVE DUAL WALL SMOOTH INTERIOR WITH GASKETED JOINTS.
DISPOSED. IF A SHOP VACUUM IS USED, CLEAN THE FILTER AND CHAMBER OUT TO PREVENT THE CONCRETE DUST FROM
HARDENING INSIDE THE UNIT.
7.
ALL STORM SEWER MANHOLES IN PAVED AREAS SHALL HAVE TRAFFIC RATED (H-20) FRAME AND COVERS AND COVERS SHALL BE
1
F. WATER USED FOR CLEANING OF TOOLS AND OTHER EQUIPMENT MUST BE CAPTURED AND PROPERLY DISPOSED OF IN THE
LABELED "STORM SEWER".
SANITARY SEWER OR IN A CONCRETE WASHOUT BIN.
G. WATER CONTAINING THESE RESIDUES IS CONSIDERED AN ILLICIT DISCHARGE IF IT IS ALLOWED TO ENTER THE STORM SEWER
8.
SET DRAINAGE BASIN, INLET RIMS, AND INVERTS OF SEWERS, DRAINS AND DITCHES IN ACCORDANCE WITH ELEVATIONS ON THE
SYSTEM PUNISHABLE BY CIVIL AND CRIMINAL PENALTIES.
GRADING AND DRAINAGE PLANS AND PROFILES. CONTRACTOR IS RESPONSIBLE FOR POSITIVE DRAINAGE.
EXISTING CONDITIONS
9.
ALL STORM STRUCTURE INTERIOR DIAMETERS SHALL BE DETERMINED BY THE MANUFACTURER BASED ON THE PIPE CONFIGURATIONS
1.
SURVEY NOTES
SHOWN ON THESE PLANS AND VDOT STANDARDS. THE MINIMUM DIAMETER SHALL BE 4 FEET.
A. THIS TOPOGRAPHIC SURVEY WAS PREPARED BY DEWBERRY ENGINEERS INC. IN DECEMBER, 2019.
B. THE HORIZONTAL DATUM IS VIRGINIA COORDINATE SYSTEM - (VCS) NAD83(2011), SOUTH ZONE.
10.
ALL FILL MATERIAL IS TO BE IN PLACE AND COMPACTED TO TOP OF PIPE ELEVATION BEFORE INSTALLATION OF PROPOSED STORM
C. THE VERTICAL DATUM IS NAVD88 (GEOID12B).
SEWER.
D. NO TITLE REPORT FURNISHED. THIS SURVEY DOES NOT PURPORT TO REFLECT ALL EASEMENTS, ENCUMBRANCES OR OTHER
CONDITIONS THAT MAY AFFECT THE TITLE TO THE SUBJECT PARCEL.
11.
ALL STORM STRUCTURES SHALL HAVE A SMOOTH UNIFORM MORTAR INVERT FROM INVERT IN TO INVERT OUT PER VDOT IS-1 DETAIL.
E. BY GRAPHICAL PLOTTING, THE SUBJECT PROPERTY IS SHOWN ON FEMA COMMUNITY PANEL 51003CO426D EFFECTIVE 02/04/2005.
THE SUBJECT AREA IS SHOWN IN ZONE X.
F. WETLANDS WERE NOT DELINEATED OR MAPPED AS PART OF THIS SURVEY.
G. ONLY VISIBLE SURFACE INDICATIONS OF UNDERGROUND AND SUBSURFACE UTILITIES WERE LOCATED AS SHOWN HEREON.
4 1 5
GENERAL NOTES (CONTINUED)
TORMWATER MANAGEMENT BASIN
CONTRACTOR SHALL PERFORM AN AS -BUILT TOPOGRAPHIC SURVEY OF THE STORMWATER MANAGEMENT BASIN AND COMPLETE
"CONSTRUCTION INSPECTION AND AS -BUILT SURVEY CHECKLIST" IN APPENDIX 3B OF THE VIRGINIA STORMWATER MANAGEMENT
HANDBOOK. CONTRACTOR SHALL PROVIDE CERTIFICATION THAT THE BASIN WAS CONSTRUCTED IN ACCORDANCE WITH THE
CONSTRUCTION DOCUMENTS.
CONTRACTOR SHALL BE RESPONSIBLE FOR SCHEDULING AND COORDINATING WITH OWNER'S TESTING FIRM ALL TESTING AND
INSPECTIONS OF SWIM BASIN EARTHWORK. CONTRACTOR IS RESPONSIBLE FOR MAKING SURE ALL TESTING REQUIREMENTS ARE
PERFORMED AND COMPLETED SO THAT TESTING FIRM MAY PROVIDE REQUIRED DOCUMENTATION.
CONTRACTOR SHALL PROVIDE COMPLETED AS -BUILT SURVEY, CHECKLIST, CERTIFICATIONS AND GEOTECHNICAL TESTING RESULTS TO
ENGINEER FOR VERIFICATION OF SWM BASIN CONSTRUCTION.
LANT PROTECTION
TREES AND VEGETATION ADJACENT TO THE ACTUAL WORK AREA OR BORROW AREA ARE TO BE PROTECTED WITH TEMPORARY FENCING
(CHAIN LINK FENCE FOR TREES; CONSTRUCTION SAFETY FENCE FOR VEGETATION) TO PRESERVE EXISTING ITEMS INDICATED TO REMAIN
AND TO PREVENT DAMAGE TO PROPERTY.
UNDERGROUND UTILITIES SHALL BE LOCATED SO THAT CONSTRUCTION WILL NOT DAMAGE OR DESTROY THE PLANTS TO REMAIN.
UTILITY TRENCHING SHALL NOT BE LOCATED CLOSER THAN V-0" FOR EACH 1" IN DIAMETER UP TO A MAXIMUM OF 20'-0" FOR TREES TO
REMAIN. DAMAGED TREES AND PLANTS SHALL BE RESTORED TO THE SATISFACTION OF THE OWNER.
THE PARKING OF VEHICLES AND STORAGE OF ANY CONSTRUCTION EQUIPMENT OR MATERIALS SHALL NOT OCCUR UNDER THE DRIP LINE
OF TREES TO BE PROTECTED.
REPLACE TREES AND PLANTS DAMAGED BY CONSTRUCTION OPERATION WITH ONES OF SIMILAR SIZE AND APPROVED BY THE OWNER.
TREES LOST OR DAMAGED SHALL BE REPLACED ON AN INCH FOR INCH BASIS. FOR EXAMPLE, AN 8-INCH TREE CAN BE REPLACED BY TWO
(2) 4-INCH TREES. ALL REPLACEMENT TREES SHALL BE 1.5" CALIBER OR LARGER. COORDINATE WITH OWNER FOR EXACT TYPE AND
LOCATION OF REPLACEMENT TREES.
ARTHWORK AND COMPACTION
90% COMPACTION SHALL BE OBTAINED FOR ALL LANDSCAPED AREAS. 95% COMPACTION SHALL BE OBTAINED FOR ALL OTHER FILL
AREAS INCLUDING UNDER SIDEWALKS ROADS PARKING LOTS UTILITIES AND APPURTENANCES. COMPACTION SHALL BE ACHIEVED IN
ACCORDANCE WITH ASTM-D698, STANDARD PROCTOR DENSITY.
IGNING AND PAVEMENT MARKINGS
SIGNS AND PAVEMENT MARKINGS ARE TO BE IN ACCORDANCE WITH THE MOST CURRENT EDITION OF THE FOLLOWING AND ANY
REVISIONS THERETO:
A. THE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MOST CURRENT EDITION ADOPTED BY VDOT)
B. THE VDOT ROAD & BRIDGE STANDARDS
C. VDOT ROAD & BRIDGE SPECIFICATIONS
PERMANENT PAVEMENT LINE MARKINGS AND PAVEMENT MARKING MESSAGES SHALL BE VDOT TYPE B, CLASS I, UNLESS OTHERWISE
NOTED. NOTE THAT ALL PERMANENT 4" PAVEMENT LINE MARKINGS SHALL BE VDOT TYPE A PAINT. MINIMUM PAINT THICKNESS SHALL BE
15 MILS (DRY).
ANY EXISTING PAVEMENT MARKINGS WHICH WILL CONFLICT WITH THE PROPOSED PAVEMENT MARKINGS SHALL BE COMPLETELY
ERADICATED.
LIMITS OF PROPOSED PAVEMENT MARKINGS SHOWN ARE APPROXIMATE AND SHALL BE MODIFIED IN THE FIELD UNTIL EXISTING
PAVEMENT MARKINGS CAN BE MATCHED.
PROPOSED SIGN LOCATIONS ARE APPROXIMATE AND SHALL BE MODIFIED IN THE FIELD TO AVOID CONFLICT WITH UNDERGROUND
UTILITIES OR OTHER OBSTRUCTIONS AND TO COMPLY WITH THE REFERENCES IN NOTE 1 ABOVE.
NEW SIGN FACINGS SHALL BE OF HIGH INTENSITY REFLECTIVE SHEETING (ENCAPSULATED LENS TYPE)
EXISTING AND PROPOSED SIGNS SHALL BE MOUNTED ON STEEL POSTS PER VDOT STANDARD STP-1
CONTRACTOR SHALL PROVIDE ALL CONSTRUCTION SIGNS.
CONTRACTOR SHALL PROVIDE ALL PERMANENT SIGNAGE TO BE INSTALLED.
ACSA GENERAL WATER & SEWER CONDITIONS
WORK SHALL BE SUBJECT TO INSPECTION BY ALBEMARLE COUNTY SERVICE AUTHORITY (ACSA) INSPECTORS. THE CONTRACTOR WILL BE
RESPONSIBLE FOR NOTIFYING THE PROPER ACSA OFFICIALS AT THE START OF WORK.
THE ALBEMARLE COUNTY SERVICE AUTHORITY SHALL HAVE ACCESS TO USE THE AIRSPACE ABOVE THE LOCATIONS OF CONSTRUCTION
FOR THE FLIGHT OF UNMANNED AERIAL VEHICLES FOR THE PURPOSE OF IMAGERY COLLECTION.
THE LOCATION OF EXISTING UTILITIES ACROSS THE LINE OF THE PROPOSED WORK ARE NOT NECESSARILY SHOWN ON THE PLANS AND
WHERE SHOWN ARE ONLY APPROXIMATELY CORRECT. THE CONTRACTOR SHALL, ON HIS OWN INITIATIVE, LOCATE ALL UNDERGROUND
LINES AND STRUCTURES, AS NECESSARY.
ALL MATERIALS AND CONSTRUCTION SHALL COMPLY WITH THE CURRENT EDITION OF THE GENERAL WATER AND SEWER CONSTRUCTION
SPECIFICATIONS AS ADOPTED BY THE ACSA.
DATUM FOR ALL ELEVATIONS SHOWN IN NATIONAL GEODETIC SURVEY.
THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYING "MISS UTILITY" (1-800-552-7001).
ALL WATER AND SEWER PIPES SHALL HAVE A MINIMUM OF THREE AND A HALF (3.5) FEET OF COVER MEASURED FROM THE TOP OF PIPE,
OVER THE CENTERLINE OF PIPE. THIS INCLUDES ALL FIRE HYDRANT LINES, SERVICE LATERALS AND WATERLINES, ETC.
ALL WATER AND SEWER APPURTENANCES ARE TO BE LOCATED OUTSIDE OF ROADSIDE DITCHES.
VALVES ON DEADEND LINES SHALL BE RODDED TO PROVIDE ADEQUATE RESTRAINT FOR THE VALVE DURING A FUTURE EXTENSION OF
THE LINE.
0. TREES ARE NOT PERMITTED IN THE ACSA EASEMENT.
1. THE CONTRACTOR SHALL BE RESPONSIBLE TO COMPLY WITH THE NO -LEAD REGULATION REGARDING BRASS FITTINGS EFFECTIVE
JANUARY 4, 2014 (SENATE BILL 3874 WHICH AMENDS THE SAFE DRINKING WATER ACT).
2. THE SEWER LATERAL BEYOND THE CONNECTION AT THE SEWER MAIN SHALL BE PRIVATE. THE SEWER LATERAL STUB -OUT SHALL
UNDERGO THE ACSA LOW-PRESSURE AIR TEST TO SATISFY COUNTY TESTING REQUIREMENTS. VISUAL INSPECTION OF THE SEWER
LATERAL STUB -OUT SHALL BE WITNESSED BY THE COUNTY BUILDING INSPECTIONS DEPARTMENT. THIS INSPECTION SHALL OCCUR
UNDER AN "OTHER PLUMBING" PERMIT WHICH MUST BE OBTAINED BY THE CONTRACTOR.
3. THE SEWER LATERAL BEYOND THE CONNECTION AT A MANHOLE SHALL BE PRIVATE. VISUAL INSPECTION AND PRESSURE TESTING OF
THE SEWER LATERAL SHALL BE WITNESSED BY THE COUNTY BUILDING INSPECTIONS DEPARTMENT. THIS INSPECTION SHALL OCCUR
UNDER AN "OTHER PLUMBING" PERMIT WHICH MUST BE OBTAINED BY THE CONTRACTOR.
4. THE FIRE SPRINKLER MAIN DOWNSTREAM OF THE GATE VALVE IS PRIVATE. VISUAL INSPECTION AND TESTING OF THE FIRE SPRINKLER
MAIN DOWNSTREAM OF THE GATE VALVE SHALL BE WITNESSED BY THE COUNTY BUILDING INSPECTIONS DEPARTMENT. THIS INSPECTION
SHALL OCCUR UNDER AN "OTHER PLUMBING" PERMIT WHICH MUST BE OBTAINED BY THE CONTRACTOR.
5. ALL FLUSHING OF FIRE SPRINKLER MAINS SHALL NOT OCCUR UNTIL APPROVAL IS GIVEN BY THE ACSA.
6. PRIOR TO BACKFILL PREVENTION DEVICE TESTING AND THE ESTABLISHMENT OF WATER SERVICE, ALL BACKFLOW PREVENTION DEVICE
INSTALLATIONS SHALL MEET THE ACSA BACKFLOW REQUIREMENTS AS DETAILED IN SECTION 8 OF THE MOST RECENT REVISION OF THE
ACSA RULES AND REGULATIONS.
7. A DEED OF EASEMENT AND EASEMENT PLAT FOR THE UTILITY EASEMENTS, APPROVED BY THE ACSA, SHALL BE RECORDED PRIOR TO
ANY WATER AND/OR SEWER SERVICE BEING ESTABLISHED.
10 Dewberry
Dewberry Engineers Inc.
4805 Lake Brook Dr., Suite 200
Glen Allen, VA 23060
Phone: (804)290-7957
Fax: (804)290-7928
www.dewberry.com
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KEVINANTHp PENN
b Lit. No. 037023
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SCALE
REVISIONS
No. DATE BY Description
NTF
DRAWN BY
KAP
APPROVED BY
ACO
CHECKED BY
DECEMBER 3, 2021
DATE
TITLE
GENERAL
NOTES
PROJECT NO. 50119298
C0001
SHEET NO.
1 1
ALBEMARLE COUNTY GENERAL CONSTRUCTION NOTES
2 1 3 1 4 5
ALBEMARLE COUNTY GENERAL CONSTRUCTION NOTES FOR ESC PLAN SURVEY TABLES
C
N
9
UAI
1.
PRIOR TO ANY CONSTRUCTION WITHIN ANY EXISTING PUBLIC RIGHT-OF-WAY, INCLUDING CONNECTION TO ANY EXISTING ROAD, A PERMIT
1.
THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR
SHALL BE OBTAINED FROM THE VIRGINIA DEPARTMENT OF TRANSPORTATION (VDOT). THIS PLAN AS DRAWN MAY NOT ACCURATELY
TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE FINAL INSPECTION.
REFLECT THE REQUIREMENTS OF THE PERMIT. WHERE ANY DISCREPANCIES OCCUR THE REQUIREMENTS OF THE PERMIT SHALL
GOVERN.
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
2.
ALL MATERIALS AND CONSTRUCTION METHODS SHALL CONFORM TO CURRENT SPECIFICATIONS AND STANDARDS OF VDOT UNLESS
AND SEDIMENT CONTROL REGULATIONS.
OTHERWISE NOTED.
3.
ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING.
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.
A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES.
4.
ALL SLOPES AND DISTURBED AREAS ARE TO BE FERTILIZED, SEEDED AND MULCHED.
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
5.
THE MAXIMUM ALLOWABLE SLOPE IS 2:1 (HORIZONTAL:VERTICAL). WHERE REASONABLY OBTAINABLE, LESSER SLOPES OF 3:1 OR BETTER
THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY.
ARE TO BE ACHIEVED.
6.
THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT
6.
PAVED, RIP -RAP OR STABILIZATION MAT LINED DITCH MAY BE REQUIRED WHEN IN THE OPINION OF THE COUNTY ENGINEER, OR
EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY.
DESIGNEE, IT IS DEEMED NECESSARY IN ORDER TO STABILIZE A DRAINAGE CHANNEL.
7.
ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING
7.
ALL TRAFFIC CONTROL SIGNS SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES.
ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED.
8.
UNLESS OTHERWISE NOTED ALL CONCRETE PIPE SHALL BE REINFORCED CONCRETE PIPE- CLASS III.
8.
DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE.
9.
ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY
9.
THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL
(29 CFR PART 1926).
EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE
IMMEDIATELY.
ALBEMARLE COUNTY GENERAL CONSTRUCTION NOTES FOR STREETS
10.
ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA.
1.
CONSTRUCTION INSPECTION OF ALL PROPOSED ROADS WITHIN THE DEVELOPMENT WILL BE MADE BY THE COUNTY. THE CONTRACTOR
11.
ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT MATERIALS ONLY, FREE OF
MUST NOTIFY THE DEPARTMENT OF COMMUNITY DEVELOPMENT (296-5832)48 HOURS IN ADVANCE OF THE START OF CONSTRUCTION.
ROOTS, STUMPS, WOOD, RUBBISH, AND OTHER DEBRIS.
2.
UPON COMPLETION OF FINE GRADING AND PREPARATION OF THE ROADBED SUBGRADE, THE CONTRACTOR SHALL HAVE CBR TESTS
12.
BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING ORDINANCE SECTION 5.1.28.
PERFORMED ON THE SUBGRADE SOIL. THREE (3) COPIES OF THE TEST RESULTS SHALL BE SUBMITTED TO THE COUNTY. IF A SUBGRADE
SOIL CBR OF 10 OR GREATER IS NOT OBTAINABLE, A REVISED PAVEMENT DESIGN SHALL BE MADE BY THE DESIGN ENGINEER AND
13.
ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECTION 13-301 OF THE CODE OF ALBEMARLE.
SUBMITTED WITH THE TEST RESULTS FOR APPROVAL.
14.
BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED TO THE HOURS OF 7:OOAM TO
3.
SURFACE DRAINAGE AND PIPE DISCHARGE MUST BE RETAINED WITHIN THE PUBLIC RIGHT-OF-WAY OR WITHIN EASEMENTS PRIOR TO
9:00 PM.
ACCEPTANCE BY THE COUNTY. ALL DRAINAGE OUTFALL EASEMENTS ARE TO BE EXTENDED TO A BOUNDARY LINE OR A NATURAL
WATERCOURSE.
15.
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
4.
GUARDRAIL LOCATIONS ARE APPROXIMATE. EXACT LENGTH, LOCATION AND APPROPRIATE END TREATMENTS WILL BE FIELD VERIFIED AT
BECAUSE OF SLIDES, SINKING, OR COLLAPSE.
THE TIME OF CONSTRUCTION. ADDITIONAL GUARDRAIL MAY BE REQUIRED AT LOCATIONS NOT SHOWN WHEN, IN THE OPINION OF THE
COUNTY ENGINEER, OR DESIGNEE, IT IS DEEMED NECESSARY. WHEN GUARDRAIL IS REQUIRED, IT SHALL BE INSTALLED FOUR (4) FEET
16.
THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO PERMANENT STORMWATER
OFFSET FROM THE EDGE OF PAVEMENT TO THE FACE OF GUARDRAIL, AND ROADWAY SHOULDER WIDTHS SHALL BE INCREASED TO
MANAGEMENT FACILITIES WHERE APPLICABLE ALL EROSION CONTROL MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE
SEVEN (7) FEET.
OF ANY LOT, UNIT, BUILDING OR OTHER PORTION OF THE PROPERTY.
5.
WHERE URBAN CROSS SECTIONS ARE INSTALLED, ALL RESIDENTIAL DRIVEWAY ENTRANCES SHALL CONFORM TO VDOT CG-9(A, B OR C).
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
6.
WHERE RURAL CROSS SECTIONS ARE INSTALLED, ALL RESIDENTIAL DRIVEWAY ENTRANCES SHALL CONFORM TO VDOT STANDARD PE-1.
CONSIST OF ANNUAL RYE, OR MAY THROUGH AUGUST TO CONSIST OF GERMAN MILLET. STRAW MULCH IS TO BE APPLIED AT 80
LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR.
7.
COMPLIANCE WITH THE MINIMUM PAVEMENT WIDTH, SHOULDER WIDTH AND DITCH SECTIONS, AS SHOWN ON THE TYPICAL PAVEMENT
SECTION DETAIL, SHALL BE STRICTLY ADHERED TO.
18.
PERMANENT STABILIZATION SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH. AGRICULTURAL GRADE LIMESTONE
SHALL BE APPLIED AT 90 LBS/1000SF, INCORPORATED INTO THE TOP 4-6 INCHES OF SOIL. FERTILIZER SHALL BE APPLIED AT 1000
8.
ROAD PLAN APPROVAL FOR SUBDIVISIONS IS SUBJECT TO FINAL SUBDIVISION PLAT VALIDATION. SHOULD THE FINAL PLAT FOR THIS
LBS/ACRE AND CONSIST OF A 10-20-10 NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 180 LBS/ACRES AND CONSIST OF 95%
PROJECT EXPIRE PRIOR TO SIGNING AND RECORDATION, THEN APPROVAL OF THESE PLANS SHALL BE NULL AND VOID.
KENTUCKY 31 OR TALL FESCUE AND 0-5% PERENNIAL RYEGRASS OR KENTUCKY BLUEGRASS. STRAW MULCH IS TO BE APPLIED AT 80
LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE COUNTY EROSION CONTROL INSPECTOR.
9.
ALL SIGNS OR OTHER REGULATORY DEVICES SHALL CONFORM WITH THE VIRGINIA MANUAL FOR UNIFORM TRAFFIC CONTROL DEVICES
AND THE ALBEMARLE COUNTY ROAD NAMING AND PROPERTY NUMBERING ORDINANCE AND MANUAL.
19.
MAINTENANCE: ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY DAMAGE OR CLOGGING TO
0
STRUCTURAL MEASURES IS TO BE REPAIRED IMMEDIATELY. SILT TRAPS ARE TO BE CLEANED WHEN 50 /o OF THE WET STORAGE VOLUME
10.
TRAFFIC CONTROL OR OTHER REGULATORY SIGNS OR BARRICADES SHALL BE INSTALLED BY THE DEVELOPER WHEN IN THE OPINION OF
IS FILLED WITH SEDIMENT. ALL SEEDED AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT
THE COUNTY ENGINEER, OR DESIGNEE, THEY ARE DEEMED NECESSARY IN ORDER TO PROVIDE SAFE AND CONVENIENT ACCESS.
FENCE AND DIVERSION DIKES WHICH ARE COLLECTING SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED AND REPAIRED
IMMEDIATELY.
11.
THE SPEED LIMITS TO BE POSTED ON SPEED LIMIT SIGNS ARE 5 MPH BELOW THE DESIGN SPEED, OR AS DETERMINED BY VDOT FOR
PUBLIC ROADS.
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.
12.
VDOT STANDARD CD-1 OR CD-2 CROSS -DRAINS UNDER TO BE INSTALLED UNDER THE SUBBASE MATERIAL AT ALL CUT AND FILL
TRANSITIONS AND GRADE SAG POINTS AS SHOWN ON THE ROAD PROFILES.
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)
13.
A VIDEO CAMERA INSPECTION IS REQUIRED FOR ALL STORM SEWERS AND CULVERTS THAT ARE DEEMED INACCESSIBLE TO VDOT OR
COUNTY INSPECTIONS. THE VIDEO INSPECTION SHALL BE CONDUCTED IN ACCORDANCE WITH VDOT'S VIDEO CAMERA INSPECTION
22.
PERMANENT VEGETATION SHALL BE INSTALLED ON ALL DENUDED AREAS WITHIN NINE (9) MONTHS AFTER THE DATE THE LAND
PROCEDURE AND WITH A VDOT OR COUNTY INSPECTOR PRESENT.
DISTURBING ACTIVITY COMMENCED. (WATER PROTECTION ORDINANCE SECTION 17-207B)
Al RFKAARI F MI INTY rFNFRAI C NIRTRI I(MnNl N()TF.q F(1R .q\A/KA PI AN
1. ALL 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 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.
ABBREVIATIONS
AC.= ACRE
APPRX. = APPROXIMATE
BC = BACK OF CURB
BW = BOTTOM OF WALL
CAB = SWITCH CABINET
CG = CURB AND GUTTER
DI = DUCTILE IRON
EOI = END OF INFORMATION
EP = EDGE OF PAVEMENT
EX = EXISTING
FF = FINISHED FLOOR
FG = FINISH GRADE
FH = FIRE HYDRANT
FP = FLAG POLE
DA = DRAINAGE AREA
IRF = IRON ROD FOUND
LF = LINEAR FEET
LOD = LIMITS OF DISTURBANCE
LP = LIGHT POLE
MH = MAN HOLE
N.T.S = NOT TO SCALE
O/H = OVERHEAD
PP = POWER POLE
R = RADIUS
RCP = REINFORCED CONCRETE PIPE
RAN = RIGHT OF WAY
SD = STORM DRAIN
STM = STORM STRUCTURE
SWIM = STORM WATER MANAGEMENT
S/W = SIDEWALK
Tc = TIME OF CONCENTRATION
TC = TOP OF CURB
TW = TOP OF WALL
TYP = TYPICAL
WM = WATER METER
WWF = WELDED WIRE FENCE
SANITARY SEWER TABLE:
SANITARY MANHOLE
SAN TOP=561.41
Q� INV IN=554.79 (LAT)
INV OUT=554.69 (2)
SANITARY MANHOLE
SAN TOP=557.79
02 INV IN=552.42 (LAT)
INV IN=552.62 (1)
INV OUT=552.38 (3)
SANITARY MANHOLE
SAN TOP=547.26
Q3 INV IN=538.35 (2)
INV OUT=538.13 (4)
SANITARY MANHOLE
SAN TOP=537.58
Q¢ INV IN=532.86 (3)
INV OUT=532.69 (5)
SANITARY MANHOLE
SAN TOP=527.82
05 INV IN=522.97 (4)
INV OUT=522.87 (6)
SANITARY MANHOLE
SAN TOP=537.18
06 INV IN=522.08 (5)
INV OUT=521.88 (7)
SANITARY MANHOLE
SAN TOP=524.27
Q] INV IN=517.55 (6)
INV OUT=517.41 (SE)
STORM SEWER TABLE:
CURB INLET
ST TOP=561.14
INV IN=553.93 (SW)
INV OUT=553.62 (2)
CURB INLET
ST TOP=553.32
02 INV IN=546.68 (1)
INV OUT=546.58 (3)
CURB INLET
ST TOP=549.49
03 INV IN=544.37 (2)
INV OUT=541.67 (4)
STORM MANHOLE
ST TOP=550.26
Q¢ INV IN=541.48 (3)
INV OUT=541.03 (SE)
CURB INLET
ST TOP=526.36
05 INV IN=521.18 (W)
INV OUT=519.82 (6)
CURB INLET
ST TOP=526.13
06 INV IN=518.83 (5)
INV OUT=518.56 (7)
CURB INLET
ST TOP=518.06
Q] INV IN=513.83 (6)
INV OUT=511.17 (8)
CURB INLET
ST TOP=510.10
08 INV IN=506.53 (7)
INV OUT=505.18 (NE)
POINT
NORTHING
EASTING
ELEVATION
DESCRIPTION
1
3886700.734
11484412.855
511.42
ROD & CAP
2
3886430.351
11484302.961
525.95
ROD & CAP
3
3886427.530
11484115.644
546.22
ROD & CAP
4
3886598.762
11483586.916
575.42
ROD & CAP
5
3886874.664
11483410.511
604.50
NAIL SET
6
3887116.550
11483039.757
592.03
NAIL SET
7
3887574.080
11483388.261
587.49
NAIL SET
8
3887298.080
11483702.872
573.55
NAIL SET
9
3887506.869
11483633.565
576.15
NAIL SET
It Dewberry
Dewberry Engineers Inc.
4805 Lake Brook Dr., Suite 200
Glen Allen, VA 23060
Phone: (804)290-7957
Fax: (804)290-7928
www.dewberry.com
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LEGEND SCALE
- 0HE - EXISTING OVERHEAD ELECTRIC LINE PROPOSED BUILDING
EXISTING POWER POLE PROPOSED ROADWAY
ss EXISTING SANITARY LINE - - PROPOSED PROPERTY SETBACK
EXISTING SANITARY MANHOLE PROPOSED SECURITY FENCE
® EXISTING CLEANOUT PROPOSED STORMWATER POND
SD- EXISTING STORM LINE PROPOSED RETAINING WALL
® EXISTING STORM INLET a a PROPOSED GUARDRAIL
® EXISTING STORM MANHOLE PROPOSED LIMITS OF DISTURBANCE
oHT EXISTING OVERHEAD TELEPHONE PROPOSED SIDEWALK
MT EXISTING COMM PEDESTAL PROPOSED TREELINE
ACSA WATER EXISTING ACSA WATERLINE SS PROPOSED SANITARY LINE
Wv® EXISTING WATER VALVE • PROPOSED SANITARY MANHOLE
EXISTING WATER METER �5 PROPOSED SANITARY CLEANOUT
EXISTING WATER MANHOLE PROPOSED STORM LINE
FH EXISTING FIRE HYDRANT PROPOSED STORM MANHOLE
❑1 EXISTING UTILITY VAULT PROPOSED STORM DRAIN INLET
UGE EXISTING UNDERGROUND ELECTRIC LINE W PROPOSED WATER LINE
UGG EXISTING UNDERGROUND GAS LINE ® PROPOSED WATER METER
EXISTING GAS VALVE FS PROPOSED FIRE LINE
EXISTING GAS MARKING POLE H PROPOSED GATE VALVE
EXISTING BUILDING OVERHANG l�J PROPOSED FIRE HYDRANT ASSEMBLY
EXISTING CHAIN -LINK FENCE Ile PROPOSED FDC
- - - -618- - - - EXISTING MINOR CONTOUR O PROPOSED POST INDICATOR VALVE
-620- EXISTING MAJOR CONTOUR v PROPOSED 900 BEND
EXISTING PAVEMENT I 1 PROPOSED 22.50 BEND
EXISTING PROPERTY DEED LINE F ( PROPOSED 11.250 BEND
EXISTING EASEMENT PROPOSED WATER LINE TEE
EXISTING DITCH PROPOSED WATER LINE CROSS
EXISTING WALL
PROPOSED REDUCER
® EXISTING PROPERTY CORNER �
PROPOSED WATER LINE EASEMENT
Q _0__ EXISTING SIGN - - PROPOSED SANITARY EASEMENT
A EXISTING GUY ANCHOR PROPOSED WATER/SANITARY EASEMENT
EXISTING SITE LIGHT
EXISTING VEGETATION °
PROPOSED CONCRETE
EXISTING TREELINE
TRV#1,L TRAVERSE
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EXISTING MANAGED STEEP SLOPES PROPOSED ASPHALT
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PROPOSED GRAVEL
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REVISIONS
No. DATE BY Description
NTF
DRAWN BY
KAP
APPROVED BY
ACO
CHECKED BY
DECEMBER 3, 2021
DATE
TITLE
GENERAL
NOTES
PROJECT NO. 50119298
C0002
SHEET NO.
1
41
4 1 5
C
EROSION & SEDIMENT CONTROL NARRATIVE
PROJECT DESCRIPTION
THE PROJECT DEVELOPS THE AVON PROPERTY IN ALBEMARLE COUNTY, VA FOR USE BY THE ALBEMARLE COUNTY SERVICE AUTHORITY. IT
INCLUDES MASS GRADING, STORMWATER MANAGEMENT, AND THE DEVELOPMENT OF A MAINTENANCE FLEET GARAGE, ACCESS ROAD,
TRAINING AREA, FUEL STATION, AND VEHICLE WASH AREA. THE DISTURBED AREA IS 7.14 AC. THE PROPOSED LAYDOWN AREA FOR THE
PROJECT IS LOCATED AT THE END OF THE EXISTING ACCESS ROAD OFF AVON STREET EXTENSION, NEAR THE ENTRANCE TO THE CELL TOWER
SITE. THIS AREA IS PROTECTED WITH SUPER SILT FENCE, DIVERSION DIKES, INLET PROTECTION, AND A SEDIMENT BASIN (SHEETS C2.03 -
C2.06).
EXISTING SITE CONDITIONS
THE EXISTING PROJECT AREA IS DENSELY WOODED WITH A GRAVEL ACCESS ROAD OFF AVON STREET EXTENSION TO A CELL TOWER AND
WATER STORAGE TANK. IT SLOPES DOWN FROM AVON STREET EXTENSION AND THE ALBEMARLE HEALTH CARE CENTER TO CULVERTS ON THE
NE PROPERTY EDGE.
ADJACENT AREAS
THE SITE IS WOODED ON THE NW AND NE PROPERTY EDGES. THERE IS AN EXISTING CELL TOWER AND WATER STORAGE TANK NW WITHIN THE
PARCEL AND AVON STREET EXTENSION FURTHER NW. THE ADJACENT PARCELS TO THE S AND SW ARE CLEARED FOR COMMERCIAL
DEVELOPMENTS, AND FOUNDERS PLACE BORDERS THE SITE TO THE E.
OFFSITE AREAS
NO OFF -SITE ACTIVITIES ARE PROPOSED WITH THIS PROJECT. CONTRACTOR SHALL ONLY PERFORM OFFSITE ACTIVITIES THAT ARE COVERED
UNDER A SEPARATE VSMP PERMIT.
SOILS
SEE SHEET C0.06 FOR SOILS MAP.
CRITICAL AREAS
THERE ARE AREAS OF CRITICAL SLOPE ON THIS SITE, SEE SHEETS C1.01 - C1.03.
EROSION AND SEDIMENT CONTROL MEASURES
CONSTRUCTION ENTRANCE (VESCH STD. & SPEC. 3.02):
A STABILIZED STONE PAD WITH A FILTER FABRIC UNDERLINER LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A
CONSTRUCTION SITE. THE PURPOSE IS TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR
VEHICLES OR RUNOFF. INSTALLED WHEREVER TRAFFIC WILL BE LEAVING A CONSTRUCTION SITE AND MOVE DIRECTLY ONTO A PUBLIC
ROAD OR OTHER PAVED AREA.
SILT FENCE (VESCH STD. & SPEC. 3.05):
A TEMPORARY SEDIMENT BARRIER CONSISTING OF A FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPORTING POSTS AND
ENTRENCHED. SILT FENCE IS INSTALLED TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING
CONSTRUCTION IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE AND TO DECREASE THE VELOCITY OF SHEET FLOWS AND
LOW -TO -MODERATE CHANNEL FLOWS.
STORM DRAIN INLET PROTECTION(VESCH STD. & SPEC. 3.07):
A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDED AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET. FOR USE WHERE
STORM DRAIN INLETS ARE TO BE MADE OPERATIONAL BEFORE PERMANENT STABILIZATION OF THE CORRESPONDING DISTURBED
DRAINAGE AREA. DIFFERENT TYPES OF STRUCTURES ARE APPLICABLE TO DIFFERENT CONDITIONS.
CULVERT INLET PROTECTION (VESCH STD. & SPEC. 3.08)
A SEDIMENT FILTER LOCATED AT THE INLET TO STORM SEWER CULVERT. CULVERT INLET PROTECTION PREVENTS SEDIMENT FROM
ENTERING, ACCUMULATING IN, AND BEING TRANSFERRED BY A CULVERT AND ASSOCIATED DRAINAGE SYSTEM PRIOR TO PERMANENT
STABILIZATION OF A DISTURBED PROJECT AREA AND PROVIDES EROSION CONTROL AT CULVERT INLETS DURING THE PHASE OF A
PROJECT WHERE ELEVATIONS AND DRAINAGE PATTERNS CHANGE, CAUSING ORIGINAL CONTROL MEASURES TO BE INEFFECTIVE OR IN
NEED OF REMOVAL.
TEMPORARY DIVERSION DIKES (VESCH STD. & SPEC. 3.09):
A TEMPORARY RIDGE OF COMPACTING SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA. FOR USE WHEREVER
STORMWATER RUNOFF MUST BE TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON SITE
DURING CONSTRUCTION. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 MONTHS OR LESS, WHICH CAN BE
PROLONGED WITH PROPER MAINTENANCE.
TEMPORARY SEDIMENT BASIN (VESCH STD. & SPEC. 3.14
(V : )
A TEMPORARY BARRIER OR DAM FORMED BY CONSTRUCTING AN EMBANKMENT WITH COMPACTED SOIL ACROSS A DRAINAGEWAY.
SEDIMENT BASINS SHOULD BE USED ONLY FOR LARGER DRAINAGE AREAS. IF THE CONTRIBUTING DRAINAGE AREA IS 3 ACRES OR
GREATER, REFER TO SEDIMENT BASIN. SEDIMENT BASINS, ALONG WITH OTHER PERIMETER CONTROLS INTENDED TO TRAP SEDIMENT,
SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY AND -DISTURBING ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND
DISTURBANCE TAKES PLACE.
OUTLET PROTECTION (VESCH STD. & SPEC. 3.18):
STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPATION DEVICES PLACED AT THE OUTLETS OF PIPES OR PAVED
CHANNEL SECTIONS. OUTLET PROTECTION PREVENTS SCOUR AT STORMWATER OUTLETS, PROTECTS THE OUTLET STRUCTURES, AND
MINIMIZES THE POTENTIAL FOR DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED FLOWS. THIS IS
APPLICABLE TO THE OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL SECTIONS.
ROCK CHECK DAM (VESCH STD. $ SPEC. 3.20):
SMALL TEMPORARY STONE DAMS CONSTRUCTED ACROSS A SWALE OR DRAINAGE DITCH. ROCK CHECK DAMS REDUCE THE VELOCITY OF
CONCENTRATED STORMWATER FLOWS, THEREBY REDUCING EROSION OF THE SWALE OR DITCH. ROCK CHECK DAMS ALSO TRAP
SEDIMENT GENERATED BY ADJACENT AREAS OR THE DITCH ITSELF, MAINLY BY PONDING OF THE STORMWATER RUNOFF.
TEMPORARY SEEDING (VESCH STD. & SPEC. 3.31):
THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE RAPIDLY GROWING
ANNUAL PLANTS. TEMPORARY SEEDING REDUCES EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WILL NOT BE
BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 14 DAYS. TEMPORARY SEEDING REDUCES DAMAGE FROM SEDIMENT AND
RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS EXPOSED DURING CONSTRUCTION UNTIL
PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED. FOR USE WHERE EXPOSED SOIL SURFACES
ARE NOT TO BE FINE -GRADED FOR PERIODS OF LONGER THAN 14 DAYS. SUCH AREAS INCLUDE DENUDED AREAS, SOIL STOCKPILES,
DIKES, DAMS, SIDES OF SEDIMENT BASINS, TEMPORARY ROADBANKS, ETC. A PERMANENT VEGETATIVE COVER SHALL BE APPLIED TO
AREAS THAT WILL BE LEFT DORMANT FOR A PERIOD OF MORE THAN ONE (1) YEAR.
PERMANENT SEEDING (VESCH STD. & SPEC. 3.32):
THE ESTABLISHMENT OF A PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANTING SEED. PERMANENT SEEDING REDUCES
EROSION AND DECREASES SEDIMENT YIELD FROM DISTURBED AREAS. PERMANENT SEEDING STABILIZES DISTURBED AREAS IN A
MANNER THAT IS ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT
MATERIAL. PERMANENT SEEDING ALSO IMPROVES WILDLIFE HABITAT AND ENHANCES NATURAL BEAUTY. FOR USE IN DISTURBED AREAS
WHERE PERMANENT, LONG-LIVED VEGETATIVE COVER IS NEEDED TO STABILIZE THE SOIL. FOR USE WHERE ROUGH -GRADED AREAS WILL
NOT BE BROUGHT TO FINAL GRADE FOR ONE (1) YEAR OR MORE.
MULCHING (VESCH STD. & SPEC. 3.35):
APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE. MULCHING PREVENTS EROSION BY
PROTECTING THE SOIL SURFACE FROM RAINDROP IMPACT AND REDUCING THE VELOCITY OF OVERLAND FLOW. MULCHING FOSTERS THE
GROWTH OF VEGETATION BY INCREASING AVAILABLE MOISTURE AND PROVIDING INSULATION AGAINST EXTREME HEAT AND COLD. FOR
USE IN AREAS WHICH HAVE BEEN PERMANENTLY SEEDED. MULCHING SHOULD OCCUR IMMEDIATELY FOLLOWING SEEDING. AREAS THAT
CANNOT BE SEEDED BECAUSE OF THE SEASON SHOULD BE MULCHED WITH AN ORGANIC MULCH.
SOIL STABILIZATION BLANKETS AND MATTING (VESCH STD. & SPEC. 3.36):
THE INSTALLATION OF A PROTECTING COVERING (BLANKET) OR SOIL STABILIZATION MAT ON A PREPARED PLANTING AREA OF A STEEP
SLOPE, CHANNEL OR SHORELINE. FOR USE ON SHORT, STEEP SLOPES WHERE EROSION HAZARD IS HIGH AND PLANTING IS LIKELY TO BE
TOO SLOW IN PROVIDING ADEQUATE PROTECTIVE COVER; IN VEGETATED CHANNELS WHERE THE VELOCITY OF DESIGN FLOW EXCEEDS
"ALLOWABLE" VELOCITY; ON STREAMBANKS OR TIDAL SHORELINES WHERE MOVING WATER IS LIKELY TO WASH OUT NEW PLANTINGS; OR
IN AREAS WHERE THE FORCES OF WIND PREVENT STANDARD MULCHING PRACTICES FROM REMAINING IN PLACE UNTIL VEGETATION
BECOMES ESTABLISHED.
TREE PROTECTION (VESCH STD. & SPEC. 3.38):
PROTECTION OF DESIRABLE TREES FROM MECHANICAL AND OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION ACTIVITY
DUST CONTROL (VESCH STD. & SPEC. 3.39);
TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE
SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM TO ANIMAL OR PLANT LIFE DURING LAND
DISTURBING, DEMOLITION AND CONSTRUCTION ACTIVITIES.
EROSION & SEDIMENT CONTROL NARRATIVE (CONTINUED)
TEMPORARY AND PERMANENT STABILIZATION
DURING CONSTRUCTION: APPLY TEMPORARY AND/OR PERMANENT SEEDING AS GRADING OPERATIONS ARE COMPLETED IN AREAS NOT TO
RECEIVE PAVEMENT OR OTHER IMPERVIOUS SURFACES.
POST CONSTRUCTION: APPLY TOPSOIL, PERMANENT SEEDING PER SPECIFICATIONS AND SOIL AMENDMENTS (AS NECESSARY) TO ALL
DISTURBED SURFACES NOT RECEIVING PAVEMENT OR OTHER IMPERVIOUS SURFACE.
TEMPORARY SEEDING 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 AND LESS THAN ONE YEAR. THIS INCLUDES, BUT IS NOT LIMITED TO, STOCKPILES AND BORROW AREAS.
PERMANENT SEEDING SHALL BE APPLIED AND A PERENNIAL VEGETATIVE COVERING SHALL BE ESTABLISHED ON DISTURBED AREAS WITHIN
SEVEN DAYS OF BEING BROUGHT TO FINAL GRADE ON AREAS NOT OTHERWISE PROTECTED. SELECTION OF THE SEED MIXTURE SHALL
DEPEND ON THE TIME OF YEAR IT IS TO BE APPLIED.
MULCHING SHALL BE APPLIED TO ALL PERMANENT SEEDING IMMEDIATELY UPON COMPLETION OF SEED APPLICATION. MULCH LIBERALLY
DURING THE MID -SUMMER AND WINTER SEASONS.
SEE VIRGINIA EROSION AND SEDIMENT CONTROL TECHNICAL BULLETIN NO. 4, NUTRIENT MANAGEMENT FOR DEVELOPMENT SITES, FOR
UPDATED SEED MIXTURES AND SCHEDULES AS WELL AS UPDATED LIMING, MULCHING, AND FERTILIZING REQUIREMENTS. SEE VIRGINIA
EROSION AND SEDIMENT CONTROL HANDBOOK STD. AND SPEC. 3.35 FOR MULCHING SPECIFICATIONS.
STORMWATER RUNOFF CONSIDERATIONS
A CONSTRUCTION GENERAL PERMIT (CGP) FOR THE DISCHARGE OF STORMWATER FROM CONSTRUCTION ACTIVITIES IS REQUIRED FOR
PROJECTS DISTURBING 1 ACRE OR GREATER. VISIT THE VIRGINIA STORMWATER MANAGEMENT PROGRAM REGULATIONS WEBSITE FOR MORE
INFORMATION.
A STORMWATER MANAGEMENT PLAN HAS BEEN DESIGNED TO ADHERE TO THE VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY IIB
STORMWATER MANAGEMENT CRITERIA FOR WATER QUALITY AND QUANTITY. THE RUNOFF FROM THE PROJECT DRAINS TO PROPOSED BMPS
ON SITE THAT DISCHARGE TO LEVEL SPREADERS AND ULTIMATELY FLOW TO POSSUM RUN. SEE SHEETS C6.01 - C6.07 FOR THE PROPOSED
STORMWATER MANAGEMENT PLAN.
CALCULATIONS
SEE PERTINENT DETAIL SHEETS INCLUDED IN THIS PLAN SET.
SOIL STOCKPILES AND BORROW AREAS
ALL SOIL STOCKPILES SHALL HAVE SILT FENCE INSTALLED ON ALL SIDES. STOCKPILES SHALL BE TEMPORARY/PERMANENTLY SEEDED
DEPENDING ON TIME FRAME FOR REUSE OR REMOVAL OF SOIL MATERIAL. ALL ON -SITE BORROW AREAS (IF NECESSARY) SHALL BE
DELINEATED ON THE PLAN BY CONTRACTOR. APPROPRIATE EROSION AND SEDIMENT CONTROL FEATURES (SILT FENCE, SEDIMENT
TRAPS/BASINS) SHALL BE INSTALLED DEPENDING ON LOCATIONS AND FIELD CONDITIONS.
EROSION & SEDIMENT CONTROL MAINTENANCE
IN GENERAL, THE PROJECT AREA SHALL BE CHECKED AFTER RAINFALL EVENT OR WEEKLY, WHICHEVER IS MORE FREQUENT TO ENSURE THAT
ALL EROSION AND SEDIMENT CONTROL DEVICES ARE IN WORKING ORDER. EROSION CONTROL DEVICES SHALL BE MAINTAINED ACCORDING TO
THE FOLLOWING SCHEDULE:
1. CONSTRUCTION ENTRANCE
THE ENTRANCE SHALL BE MAINTAINED IN A CONDITION WHICH WILL PREVENT TRACKING OR FLOW OF MUD ONTO PUBLIC RIGHT-OF-WAY,
THIS MAY REQUIRE PERIODIC TOP DRESSING WITH ADDITIONAL STONE OR THE WASHING AND REWORKING OF EXISTING STONE AS
CONDITIONS DEMAND AND REPAIR AND/OR CLEANOUT OF ANY STRUCTURES USED TO TRAP SEDIMENT. ALL MATERIALS SPILLED,
DROPPED, WASHED, OR TRACKED FROM VEHICLES ONTO ROADWAYS OR INTO STORM DRAINS MUST BE REMOVED IMMEDIATELY. THE
USE OF WATER TRUCKS TO REMOVE MATERIALS DROPPED, WASHED, OR TRACKED OUTSIDE THE PROJECT AREA WILL NOT BE
PERMITTED UNDER ANY CIRCUMSTANCES.
2. SILT FENCE
A. SEDIMENT DEPOSITS SHALL BE REMOVED WHEN DEPOSITS REACH APPROXIMATELY ONE-HALF THE HEIGHT OF THE BARRIER.
B. FABRIC SHALL BE REPLACED IF IT HAS DECOMPOSED OR BECOME INEFFECTIVE.
3. SEEDING
THE SEEDED AREAS SHALL BE CHECKED REGULARLY TO ENSURE THAT A GOOD STAND IS MAINTAINED. AREAS SHOULD BE FERTILIZED
AND RE -SEEDED AS NEEDED.
4. BLANKETS & MATTING
AREAS SHOULD BE INSPECTED REGULARLY FOLLOWING INSTALLATION, ESPECIALLY AFTER RAINSTORMS. ANY DISLOCATION OR FAILURE
SHOULD BE REPLACED IMMEDIATELY. IF WASHOUTS OR BREAKAGE OCCURS, REINSTALL THE MATERIAL AFTER REPAIRING DAMAGE TO
THE SLOPE OR DITCH. CONTINUE TO MONITOR THESE AREAS UNTIL THEY BECOME PERMANENTLY STABILIZED.
5. INLET PROTECTION
THE STRUCTURE SHALL BE INSPECTED AFTER EACH RAINSTORM AND REPAIRED AS NEEDED. AGGREGATE SHALL BE REPLACED OR
CLEANED WHEN INSPECTION REVEALS CLOGGED VOIDS ARE CAUSING PONDING OR INTERFERING WITH CONSTRUCTION. ADDITIONALLY,
SEDIMENT SHALL BE REMOVED WHEN IT HAS ACCUMULATED TO ONE-HALF THE DESIGN DEPTH.
6. ROCK CHECK DAM
SEDIMENT SHOULD BE REMOVED WHEN IT REACHES ONE-HALF OF THE ORIGINAL HEIGHT OF THE MEASURE. REGULAR INSPECTIONS
SHOULD BE MADE TO ENSURE THAT THE CENTER OF THE DAM IS LOVER THEN THE EDGES. EROSION CAUSED BY HIGH FLOWS AROUND
THE EDGES OF THE DAM SHOULD BE CORRECTED IMMEDIATELY.
THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING AN EMPLOYEE WHO WILL BE RESPONSIBLE IN CHARGE OF THE EROSION AND
SEDIMENT CONTROL PLAN AND REQUIREMENTS FOR THE PROJECT THAT IS CERTIFIED BY THE VIRGINIA DEPARTMENT OF ENVIRONMENTAL
QUALITY (DEQ) AS A RESPONSIBLE LAND DISTURBER (RLD). THE NAME OF THE CONTRACTOR'S RLD AND COPY OF HIS CURRENT CERTIFICATION
SHALL BE PROVIDED TO THE OWNER, ENGINEER, AND COUNTY/CITY ESC INSPECTOR PRIOR TO PERFORMING ANY LAND DISTURBING ACTIVITY.
THE CONTRACTOR SHALL BE RESPONSIBLE FOR PREVENTING SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOILS WHICH MAY
PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS, OR HARM ANIMAL OR PLANT LIFE.
THE CONTRACTOR WILL MAINTAIN A LOG OF INSPECTIONS, MAINTENANCE PERFORMED, AND REPAIRS MADE FOR THE INSPECTION BY THE
OWNER AND PLAN APPROVING AUTHORITY.
NO EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHOUT APPROVAL OF THE ENGINEER OR COUNTY/CITY ESC
INSPECTOR FOR THE PROJECT. SEDIMENT SHALL BE PLACED IN APPROVED LOCATION.
EROSION & SEDIMENT CONTROL NOTES
ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES WILL BE
CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT
CONTROL HANDBOOK AND VIRGINIA REGULATIONS (9VAC25-840).
ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR
TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO FINAL INSPECTION.
ES-3: ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING.
ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES.
ES-5: PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS OTHER THAN INDICATED ON THESE PLANS (INCLUDING, BUT NOT
LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO
THE OWNER FOR REVIEW AND APPROVAL BY THE PLAN APPROVING AUTHORITY.
ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL EROSION CONTROL MEASURES NECESSARY TO PREVENT
EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY.
ES-7: ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES DURING LAND DISTURBING
ACTIVITIES AND DURING SITE DEVELOPMENT UNTIL FINAL STABILIZATION IS ACHIEVED.
ES-8: DURING DEWATERING OPERATIONS, WATER SHALL BE PUMPED INTO AN APPROVED FILTERING DEVICE.
ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AFTER EACH RUNOFF -PRODUCING RAINFALL
EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE
IMMEDIATELY.
MINIMUM STANDARDS (9VAC25-840-40)
A VESCP MUST BE CONSISTENT WITH THE FOLLOWING CRITERIA, TECHNIQUES AND METHODS:
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 FOR LONGER THAN 14 DAYS. PERMANENT STABILIZATION SHALL BE
APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR.
2. DURING CONSTRUCTION OF THE PROJECT, SOIL STOCK PILES 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.
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.
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.
5. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS IMMEDIATELY AFTER
INSTALLATION.
MINIMUM STANDARDS (9VAC25-840-40)
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.
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 OUTFALL 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.
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.
9. WHENEVER WATER SEEPS FROM A SLOPE FACE, ADEQUATE DRAINAGE OR OTHER PROTECTION SHALL BE PROVIDED.
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.
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.
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. 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. 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. ALL APPLICABLE FEDERAL, STATE AND LOCAL REQUIREMENTS PERTAINING TO WORKING IN OR CROSSING LIVE WATERCOURSES SHALL
BE MET.
15. THE BED AND BANKS OF A WATERCOURSE SHALL BE STABILIZED IMMEDIATELY AFTER WORK IN THE WATERCOURSE IS COMPLETED.
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.
D. MATERIAL USED FOR BACKFILLING TRENCHES SHALL BE PROPERLY COMPACTED IN ORDER TO MINIMIZE EROSION AND PROMOTE
STABILIZATION.
E. RESTABILIZATION SHALL BE ACCOMPLISHED IN ACCORDANCE WITH THIS CHAPTER.
F. APPLICABLE SAFETY REQUIREMENTS SHALL BE COMPLIED WITH.
17. 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.
18. 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 SEDIMENTATION.
19. 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:
A. 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.
B. ADEQUACY OF ALL CHANNELS AND PIPES SHALL BE VERIFIED IN THE FOLLOWING MANNER:
(1) THE APPLICANT SHALL DEMONSTRATE THAT THE TOTAL DRAINAGE AREA TO THE POINT OF ANALYSIS WITHIN THE CHANNEL IS
ONE HUNDRED TIMES GREATER THAN THE CONTRIBUTING DRAINAGE AREA OF THE PROJECT IN QUESTION; OR
(2A) NATURAL CHANNELS SHALL BE ANALYZED BY THE USE OF A TWO-YEAR STORM TO VERIFY THAT STORMWATER WILL NOT
OVERTOP CHANNEL BANKS NOR CAUSE EROSION OF CHANNEL BED OR BANKS.
(21B) ALL PREVIOUSLY CONSTRUCTED MAN-MADE CHANNELS SHALL BE ANALYZED BY THE USE OF A 10-YEAR STORM TO VERIFY
THAT STORMWATER WILL NOT OVERTOP ITS BANKS AND BY THE USE OF A TWO-YEAR STORM TO DEMONSTRATE THAT
STORMWATER WILL NOT CAUSE EROSION OF CHANNEL BED OR BANKS; AND
(2C) PIPES AND STORM SEWER SYSTEMS SHALL BE ANALYZED BY THE USE OF A 10-YEAR STORM TO VERIFY THAT STORMWATER
WILL BE CONTAINED WITHIN THE PIPE OR SYSTEM.
C. IF EXISTING NATURAL RECEIVING CHANNELS OR PREVIOUSLY CONSTRUCTED MAN-MADE CHANNELS OR PIPES ARE NOT ADEQUATE,
THE APPLICANT SHALL:
(1) IMPROVE THE CHANNELS TO A CONDITION WHERE A 10-YEAR STORM WILL NOT OVERTOP THE BANKS AND A TWO-YEAR
STORM WILL NOT CAUSE EROSION TO THE CHANNEL, THE BED, OR THE BANKS; OR
(2) IMPROVE THE PIPE OR PIPE SYSTEM TO A CONDITION WHERE THE 10-YEAR STORM IS CONTAINED WITHIN THE
APPURTENANCES;
(3) DEVELOP A SITE DESIGN THAT WILL NOT CAUSE THE PRE -DEVELOPMENT PEAK RUNOFF RATE FROM A TWO-YEAR STORM TO
INCREASE WHEN RUNOFF OUTFALLS INTO A NATURAL CHANNEL OR WILL NOT CAUSE THE PRE -DEVELOPMENT PEAK RUNOFF
RATE FROM A 10-YEAR STORM TO INCREASE WHEN RUNOFF OUTFALLS INTO A MAN-MADE CHANNEL; OR
(4) PROVIDE A COMBINATION OF CHANNEL IMPROVEMENT, STORMWATER DETENTION OR OTHER MEASURES WHICH IS
SATISFACTORY TO THE VESCP AUTHORITY TO PREVENT DOWNSTREAM EROSION.
D. THE APPLICANT SHALL PROVIDE EVIDENCE OF PERMISSION TO MAKE THE IMPROVEMENTS.
E. ALL HYDROLOGIC ANALYSES SHALL BE BASED ON THE EXISTING WATERSHED CHARACTERISTICS AND THE ULTIMATE
DEVELOPMENT CONDITION OF THE SUBJECT PROJECT.
F. IF THE APPLICANT CHOOSES AN OPTION THAT INCLUDES STORMWATER DETENTION, HE SHALL OBTAIN APPROVAL FROM THE
VESCP OF A PLAN FOR MAINTENANCE OF THE DETENTION FACILITIES. THE PLAN SHALL SET FORTH THE MAINTENANCE
REQUIREMENTS OF THE FACILITY AND THE PERSON RESPONSIBLE FOR PERFORMING THE MAINTENANCE.
G. OUTFALL FROM A DETENTION FACILITY SHALL BE DISCHARGED TO A RECEIVING CHANNEL, AND ENERGY DISSIPATORS SHALL BE
PLACED AT THE OUTFALL OF ALL DETENTION FACILITIES AS NECESSARY TO PROVIDE A STABILIZED TRANSITION FROM THE
FACILITY TO THE RECEIVING CHANNEL.
H. ALL ON -SITE CHANNELS MUST BE VERIFIED TO BE ADEQUATE.
I. INCREASED VOLUMES OF SHEET FLOWS THAT MAY CAUSE EROSION OR SEDIMENTATION ON ADJACENT PROPERTY SHALL BE
DIVERTED TO A STABLE OUTLET, ADEQUATE CHANNEL, PIPE OR PIPE SYSTEM, OR TO A DETENTION FACILITY.
J. IN APPLYING THESE STORMWATER MANAGEMENT CRITERIA, INDIVIDUAL LOTS OR PARCELS IN A RESIDENTIAL, COMMERCIAL OR
INDUSTRIAL DEVELOPMENT SHALL NOT BE CONSIDERED TO BE SEPARATE DEVELOPMENT PROJECTS. INSTEAD, THE
DEVELOPMENT, AS A WHOLE, SHALL BE CONSIDERED TO BE A SINGLE DEVELOPMENT PROJECT. HYDROLOGIC PARAMETERS THAT
REFLECT THE ULTIMATE DEVELOPMENT CONDITION SHALL BE USED IN ALL ENGINEERING CALCULATIONS.
K. ALL MEASURES USED TO PROTECT PROPERTIES AND WATERWAYS SHALL BE EMPLOYED IN A MANNER WHICH MINIMIZES IMPACTS
ON THE PHYSICAL, CHEMICAL AND BIOLOGICAL INTEGRITY OF RIVERS, STREAMS AND OTHER WATERS OF THE STATE.
L. ANY PLAN APPROVED PRIOR TO JULY 1, 2014, THAT PROVIDES FOR STORMWATER MANAGEMENT THAT ADDRESSES ANY FLOW RATE
CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS SHALL SATISFY THE FLOW RATE CAPACITY AND
VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS IF THE PRACTICES ARE DESIGNED TO (1) DETAIN THE WATER
QUALITY VOLUME AND TO RELEASE IT OVER 48 HOURS; (11) DETAIN AND RELEASE OVER A 24-HOUR PERIOD THE EXPECTED
RAINFALL RESULTING FROM THE ONE YEAR, 24-HOUR STORM; AND (111) REDUCE THE ALLOWABLE PEAK FLOW RATE RESULTING
FROM THE 1.5, 2, AND 10-YEAR, 24-HOUR STORMS TO A LEVEL THAT IS LESS THAN OR EQUAL TO THE PEAK FLOW RATE FROM THE
SITE ASSUMING IT WAS IN A GOOD FORESTED CONDITION, ACHIEVED THROUGH MULTIPLICATION OF THE FORESTED PEAK FLOW
RATE BY A REDUCTION FACTOR THAT IS EQUAL TO THE RUNOFF VOLUME FROM THE SITE WHEN IT WAS IN A GOOD FORESTED
CONDITION DIVIDED BY THE RUNOFF VOLUME FROM THE SITE IN ITS PROPOSED CONDITION, AND SHALL BE EXEMPT FROM ANY
FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS FOR NATURAL OR MAN-MADE CHANNELS AS DEFINED IN ANY REGULATIONS
PROMULGATED PURSUANT TO § 62.1-44.15:54 OR 62.1-44.15:65 OF THE ACT.
M. FOR PLANS APPROVED ON AND AFTER JULY 1, 2014, THE FLOW RATE CAPACITY AND VELOCITY REQUIREMENTS OF § 62.1-44.15:52 A
OF THE ACT AND THIS SUBSECTION SHALL BE SATISFIED BY COMPLIANCE WITH WATER QUANTITY REQUIREMENTS IN THE
STORMWATER MANAGEMENT ACT (§ 62.1-44.15:24 ET SEQ. OF THE CODE OF VIRGINIA) AND ATTENDANT REGULATIONS, UNLESS
SUCH LAND -DISTURBING ACTIVITIES ARE IN ACCORDANCE WITH 9VAC25-870-48 OF THE VIRGINIA STORMWATER MANAGEMENT
PROGRAM (VSMP) REGULATION OR ARE EXEMPT PURSUANT TO SUBDIVISION C 7 OF § 62.1-44.15:34 OF THE ACT.
N. COMPLIANCE WITH THE WATER QUANTITY MINIMUM STANDARDS SET OUT IN 9VAC25-870-66 OF THE VIRGINIA STORMWATER
MANAGEMENT PROGRAM (VSMP) REGULATION SHALL BE DEEMED TO SATISFY THE REQUIREMENTS OF THIS SUBDIVISION 19.
Dewberry Engineers Inc.
4805 Lake Brook Dr., Suite 200
Glen Allen, VA 23060
Phone: (804)290-7957
Fax: (804) 290-7928
www.dewberry.com
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REVISIONS
No. DATE BY Description
NTF
DRAWN BY
KAP
APPROVED BY
ACO
CHECKED BY
DECEMBER3,2021
DATE
TITLE
E&SC
NOTES
PROJECT NO.
50119298
C0.O3
SHEET NO.
1
3 4 5
E
f
CE
STONE CONSTRUCTION
ACCESS (VDOT #1
COURSE AGGREGATE)
70' MIN. EXISTING
3" SM-2A ASPHALT PAVEMENT
2% TOP COURSE 20/Q
EXISTING GROUND 6" MIN. 21A
AGGREGATE BASE
PROFILE VIEW
STONE CONSTRUCTION
ACCESS (VDOT #1 ASPHALT PAVED
COURSE AGGREGATE) WASHRACK
�70' MIN. 70' MIN.
F-A
y1t+911�[r
MEN
2%_ 2% 12' MIN.* 2% PAVEMEIs
1
*MUST EXTEND FULL WIDTH A POSITIVE \\
OF INGRESS AND EGRESS I DRAINAGE TO
SEDIMENT
OPERATION +
TRAPPING DEVICE
PLAN VIEW
POSITIVE
2' MIN . DRAINAGE TO
SEDIMENT
2% TRAPPING DEVICE
SECTION A -A
A MINIMUM WATER TAP OF 1 INCH MUST BE INSTALLED WITH A MINIMUM 1 INCH BALLCOCK SHUTOFF
VALVE SUPPLYING A WASH HOSE WITH A DIAMETER OF 1.5 INCHES FOR ADEQUATE CONSTANT
PRESSURE. WASH WATER MUST BE CARRIED AWAY FROM THE ENTRANCE TO AN APPROVED SETTLING
AREA TO REMOVE SEDIMENT. ALL SEDIMENT SHALL BE PREVENTED FROM ENTERING STORM DRAINS,
DITCHES OR WATERCOURSES.
SOURCE: ALBEMARLE COUNTY DESIGN STANDARDS MANUAL - ENGINEERING
PAVED WASH RACK
IP
1992
•
GRAVEL FILTER 127-"
RUNOFF WATER WIRE MESH
FILTERED WATER
s a
IT
rt1 Ij'��IIMII�I I� e..r o _
v
SEDIMENT 9111� a nA
CONCRETE GUTTER t2 a
CURB INLET
SPECIFIC APPLICATION
THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS
WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LIKELY TO CAUSE
INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED
AREAS.
GRAVEL SHALL BE VDOT #3, 4357 OR 5 COARSE AGGREGATE
Source: Va. DSWC
III - 41
3.07
Plate 3.07-6
N.T.S.
2
SS
1992
CONSTRUCTION OF A SILT FENCE
(WITH WIRE SUPPORT)
1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS.
TRENCH UPSLOPE ALONG THE LINE
OF POSTS.
i f i
III
FLOW
a"
3. ATTACH THE FILTER FABRIC TO THE WIRE 4, BACKFILL AND COMPACT THE
FENCE AND EXTEND IT INTO THE TRENCH. EXCAVATED SOIL
FLOW /
=1i
EXTENSION OF FABRIIIC�.�j lAND
WIRE INTO THE TRENCH.
FILTER FABRIC
Source: Adapted from Installation of Straw and Fabric Filter
Barriers for Sediment Control, Sherwood and Wyant
III - 24
CIP
1992
SF
3.05 1992
3.05
CONSTRUCTION OF A SILT FENCE
(WITHOUT WIRE SUPPORT)
1. SET THE STAKES. 2. EXCAVATE A 47X 4"' TRENCH
UPSLOPE ALONG THE LINE OF
STAKES.
6-MAX.
FLOW
3. STAPLE FILTER MATERIAL
TO STAKES AND EXTEND
IT INTO THE TRENCH.
4. BACKFILL AND COMPACT
THE EXCAVATED SOIL.
FLOW
SHEET FLOW INSTALLATION
(PERSPECTIVE VIEW)
I I
POINTS A SHOULD BE HIGHER THAN POINT B.
DRAINAGEWAY INSTALLATION
(FRONT ELEVATION)
Source: Adapted from Installation of Straw and Fabric Filter
Plate 3.05-1 Barriers for Sediment Control, Sherwood and Wyant
III - 25
SILT FENCE CULVERT INLET
PROTECTION
`DISTANCE IS 6' MINIMUM IF FLOW
IS TOWARD EMBANKMENT
L FLOW
OPTIONAL STONE COMBINATION
VDOT #3, #357 OR #5
TO REPLACE SILT FENCE
HIGH VELOCITY OF FLOW
Source: Adapted from VDOT Standard
Sheets and Va. DSWC
III-49
I RIPRAP
3.08
Plate 3.08-1
Plate 3.05-2
1992 3.09
Height
The minimum allowable height measured from the upslope side of the dike is 18 inches (see
Plate 3.09-1).
Source: Va. DSWC Plate 3.09-1
Side Slopes
1k:1 or flatter, along with a minimum base width of 4.5 feet (see Plate 3.09-1).
Grade
The channel behind the dike shall have a positive grade to a stabilized outlet. If the
channel slope is less than or equal to 29o, no stabilization is required. If the slope is greater
than 2%, the channel shall be stabilized in accordance with Std. & Spec. 3.17,
STORMWATER CONVEYANCE CHANNEL.
Outlet
1. The diverted runoff, if free of sediment, must be released through a stabilized outlet
or. channel.
III - 54
1992
SILT FENCE DROP INLET
PROTECTION
2 % a' VODB FRAME
1.5' MAX. -FRAME
l' 3' MIN. ��`'
GATHER
EXCESS
�1 CORNERS
V V
PERSPECTIVE VIEWS
STAKE �y
FABRIC-" Ii
l2l
I v r MIN.
ELEVATION OF STAKE AND
FABRIC ORIENTATION DETAIL A
SPECIFIC APPLICATION
THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE
INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER
THAN 57) WHERE THE INLET SHEET OR OVERLAND FLOWS (NOT
EXCEEDING I C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT
APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS
IN STREET OR HIGHWAY MEDIANS.
Source: N.C. Erosion and Sediment Control
Planning and Design Manual, 1988
Ell -35
SB
1992
3.07 fS Dewberry
Plate 3.07-1
3,14
SEDIMENT BASIN SCHEMA TI C
ELEVATIONS
CREST OF EMERGENCY
SPILLWAY
DESIGN NIGH WATER
(25-YR. STORM ELEV:)
MIN, 10,
. __ ____ ______
1.0 MiN. '
-- "]'- --- RISER CREST
67 C.Y./ AC. _ T - DEWATERING
DRY' STORAGE DEVICE
67 C.Y./ AC. T
" WET ' STORAGE -
ttlipl
SEDIMENT CLEANOUT POINT
(' WET - STORAGE REDUCED
TO 34 C.Y./ ACRE)
DESIGN ELEVATIONS WITH
EMERGENCY SPILLWAY
DESIGN HIGH WATER
(25-YR. STORM ELEV-) MIN.'.0 IN. 301
o.s MIN. 1.0'
67 C.Y./ Ac.
CRY " STORAGE - -
..: RISER CREST
67 C.Y./ AC. pEWATERING
WET " STORAGE .: ... _.
DEVICE
SEDIMENT CLEANOUT POINT
DESIGN ELEVATIONS WITHOUT
EMERGENCY SPILLWAY
(RISER PASSES 25-YR. EVENT)
Source: Va. DSWC
1I1 - 83
Plate 3.14-2
Dewberry Engineers Inc.
4805 Lake Brook Dr., Suite 200
Glen Allen, VA 23060
Phone: (804) 290-7957
Fax: (804) 290-7928
www.dewberry.com
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SCALE
:VISIONS
No. DATE BY Description
NTF
DRAWN BY
KAP
APPROVED BY
ACO
CHECKED BY
DECEMBER 3, 2021
DATE
TITLE
E&SC
DETAILS
PROJECT NO.
50119298
COmO4
SHEET NO.
2
OP
1992
3.18
3 4
CD
1992
3.20
5
isTABLE 3.31-B
(Revised June 2003)
TEMPORARY SEEDING SPECIFICATIONS
QUICK REFERENCE FOR ALL REGIONS
• Dewberry
C
C
SB
1992
3.14
EXAMPLE PLAN VIEWS OF
BAFFLE LOCATIONS IN
SEDIMENT BASINS
D
D 2 NO SCALE
INFLOW—
`� 9t, RISER
\ F
� ll
NORMAL POOL
NORMAL POOL
NORM" ^^^'
SHEETS OF 4' X 8' X 1/2- EXTERIOR
PLYWOOD OR EQUIVALENT
Source: USDA-SCS
III - 94
MU
1992
L - TOTAL DISTANCE FROM
THE POINT OF INFLOW
AROUND THE RAFFLE TO
THE RISER.
RISER
RISER CREST ELEVATION
POSTS MIN. SIZE V SQUARE
OR 5" ROUND. SET AT
LEAST 3' INTO THE GROUND.
Plate 3.14-6
3.35
TABLE 3.35-A
ORGANIC MULCH MATERIALS AND APPLICATION RATES
RATES:
MULCHES:
NOTES:
Per Acre
Per 1000 sq. ft.
Straw or Hay
l h - 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.
Source: Va. DSWC
PIPE OUTLET CONDITIONS
A A
PIPE OUTLET TO FLAT
AREA WITH NO DEFINED
PLAN VIEW CHANNEL
L a
d
7-
SECTION A -A FILTER CLOTH KEY IN 8.-Ir; RECOMMENDED FOR ENTIRE PERIMETER
A
-- A ado (MIN.)
do
E
PIPE OUTLET TO WELL
DEFINED CHANNEL
PLAN VIEW
L a
0��
go I -
It
SECTION A -A
FILTER CLOTH KEY IN 6"-9", RECOMMENDED FOR ENTIRE PERIMETER
NOTES: 1. APRON LINING MAY BE RIPRAP. GROUTED RIPRAP, GABION
BASKET. OR CONCRETE.
2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED
USING PLATFS 3.18-3 AND 3.18-4,
3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT
LESS THAN 6 INCHES,
Source: Va. DSWC
B/M
1992
Plate 3.18-1
III - 157
3.36
TYPICAL ORIENTATION OF
TREA TMENT — 1
(SOIL STABILIZATION BLANKET)
SHAI I OW
ON SHALLQIY SLOPES, STRIPS OF
NETTING PROTECTIVE COVERINGS
MAY BE APPLIED ACROSS
THE SLOPE.
BERM
WHERE THERE IS A BERM AT THE TOP OF THE SLOPE,
BRING THE MATERIAL OVER THE BERM AND ANCHOR IT
BEHIND THE BERM.
I
ON = SLOPES, APPLY
PROTECTIVE COVERING PARALLEL
TO THE DIRECTION OF FLOW
AND ANCHOR SECURELY.
a
BRING MATERIAL DOWN TO A LEVEL AREA BEFORE_
TERMINATING THE INSTALLATION. TURN THE END
UNDER 4' AND STAPLE AT 17 INTERVALS.
12"
IN DITCHES, APPLY PROTECTIVE COVERING
PARALLEL TO THE DIRECTION OF FLOW.
USE CHECK SLOTS AS REQUIRED. AVOID
JOINING MATERIAL W THE CENTER OF
THE [ITCH IF AT ALL POSSIBLE.
Source: Adapted from Ludlow Products Brochure
CLASS I RIPRAP
Source: Va. DSWC Plate 3.20-1
11I - 187
B/M
1992 3.36
TYPICAL TREATMENT — 1
(SOIL STABILIZATION BLANKET)
INSTALLATION CRITERIA
ANCHOR SLAT
!VOTES
APPROXIMATELY 200 STAPLES REQUIRED
PER 100 MATERIAL ROLL.
ANCHOR SLOTS,
JUNCTION
ION SLOTS &
CHECK SLOTS TO BE BURIED 6" TO 17.
17 MAX. 4:1 OR FLATTER
40 G MAX. STEEPER THAN 4:1 _
JUNCTION SLOT
EDGE AND ENO JOINTS I I I I I I I I I I
CHECK SLOT ' TO BE SNUGLY ABUTTED
(JUTE MESH WILL HAVE I I I
TERMINAL FOLD STAPLED LAP JOINT IN I
LIEU OF EDGE JOINT)
LAP JOINT 7 MIN. I I I I I I I
TAMP FIRMLY (JUTE MESH ONLY) I I I
ANCHOR SLOT I I
5' MAX. 4:1 OR FLATTER
3' MAX. STEEPER THAN 4:1 I I I I
7
T I To 17
1 I I
I I I I I I
I I I
`CHECK SLOT I I I I I I
I I I I
7 Z TAMP CHECK SLOT 1" TO I I I I I
FIRMLY �~ VAR.
Er To 'r Cr TO T MIN. PLAN VIEW
STAPLING DIAGRAM
'CHECK SLOTS AT MIN.
STAPLE FORMED FROM 40.11 STEEL WIRE. 50' C-C INTERVALS;
8" STAPLE MIN. LENGTH FOR SANDY SOIL. NOT REO.'D WITH ALL
8- STAPLE MIN. LENGTH FOR OTHER SOU "COM BI NATION' BLANKETS
JUNCTION SLOT TAMP
ar
7 FIRMLY 6. TO I
,r
T
Plate 3.36-1 Source: VDOT Road and Bridge Standards
TERMINAL FOLD
7
Plate 3.36-2
SEED
APPLICATION DATES
SPECIES
APPLICATION RATES
Sept. 1 - Feb. 15
50150 Mix of Annual Ryegrass (lolium multi-
florum) & Cereal (Winter) Rye (Secale cereale)
50 -100 (lbs/acre)
Feb. 16 - Apr. 30
Annual Ryegrass (lolium multi-florum)
60 - 100 (lbs/acre)
May 1 - Aug. 31
German Millet
50 (lbs/acre)
FERTILIZER & LIME
• Apply 10-10-10 fertilizer at a rate of 450 lbs. / acre (or 10 lbs- / 1,000 sq. ft.)
+ Apply Pulverized Agricultural Limestone at a rate of 2 tonslacre (or 90 Ibs.11,000 sq. ft.)
NOTE:
1 - A soil test is necessary to determine the actual amount of lime required to adjust the soil pH of site.
2 - Incorporate the lime and fertilizer into the top 4 - 6 inches of the soil by disking or by other means.
3 - When applying Slowly Available Nitrogen, use rates available in Erosion & Sediment Control Technical Bulletin
# 4. 2003 Nutrient Management for Development Sites at http://www.dcr.state.va.us/sw/e&s.htm#pubs
TABLE 3.32-D
PS (Revised June 2003)
PERMANENT SEEDING SPECIFICATIONS FOR PIEDMONT AREA
EED1
LAND USE
SPECIES
APPLICATION PER ACRE
Tall Fescue'
95-100%
Minimum Care Lawn
Perennial Ryegrass
0-5%
(Commercial or Residential)
Kentucky Bluegrass'
0-5%
TOTAL: 175-200 lbs.
Hioh-Maintenance Lawn
Tall Fescue'
TOTAL: 200-250 IDS.
Tall Fescue'
128 Ibs.
General Slope (3:1 or less)
Red Top Grass or Creeping Red Fescue
Seasonal Nurse Crop`
2 lbs.
20 lbs.
TOTAL: 150 lbs.
Tall Fescue'
108lbs-
Red Top Grass or Creeping Red Fescue
2 lbs.
Low-Maintenance Slope
Seasonal Nurse Crop2
20 lbs.
(Steeper than 3: 1)
CrownvetCh3
20 lbs.
TOTAL: 150 Ibs.
1 - When selecting varieties of turfgrass, use the Virginia Crop Improvement Association (VCIA) recommended
turfgrass variety list. Quality seed will bear a label indicating that they are approved by VCIA. A current turfgrass
variety list is available at the local County Extension office or through VCIA at 804-746-4884 or at
htto://su d an. cses.vt. ed u/htm I/Tu rf/turf/ou bli cations/ou bl ication s 2. html
2 - Use seasonal nurse crop in accordance with seeding dates as stated below:
February 16"' - April ............................... Annual Rye
May Is' -August 15'" ........................... Foxtail Millet
August 16!' - October ...... Annual Rye
November - February 15". ....................... Winter Rye
3 - Substitute Sericea lespedeza for Crownvetch east of Farmville, VA (May through September use hulled seed,
all other periods, use unhulled Sericea). If Flatpea is used, increase rate to 30 lbs./acre. If Weeping Lovegrass is
Used, include in any slope or low maintenance mixture during warmer seeding periods, increase to 30 -40
FERTILIZER & LIME
• Apply 10-20-10 fertilizer at a rate of 500 lbs. / acre (or 12 lbs- / 1,000 sq. ft.)
• Apply Pulverized Agricultural Limestone at a rate of 2 tonslacre (or 90 lbs. ! 1,000 sq. ft.)
NOTE:
- A soil test is necessary to determine the actual amount of lime required to adjust the soil pH of site.
- Incorporate the lime and fertilizer into the top 4 - 6 inches of the soil by disking or by other means.
- When applying Slowly Available Nitrogen, use rates available in Erosion & Sediment Control Technical Bulletin
# 4. 2003 Nutrient Management for Development Sites at httD:Uwww.dcr.state.va.us/sw/e&s.htm#pubs
TP
1992 3.38
FENCING AND ARMORING
I
DRIP LINE
SNOW FENCE I '�
BOARD FENCE
00
00
IMP PO
re+
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w
TRIANGULAR BOARD FENCE
Source: Va. DSWC
Plate 3.38-2
Dewberry Engineers Inc.
4805 Lake Brook Dr., Suite 200
Glen Allen, VA 23060
Phone: (804) 290-7957
Fax: (804) 290-7928
www.dewberry.com
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SCALE
VISIONS
No. DATE BY Description
NTF
DRAWN BY
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APPROVED BY
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CHECKED BY
DECEMBER 3, 2021
DATE
TITLE
E&SC
DETAILS
PROJECT NO.
50119298
COmO5
SHEET NO.
III - 353
Ill - 361
III - 362
III - 401