HomeMy WebLinkAboutWPO202100034 Plan - VSMP 2022-11-22GENERAL NOTES
0 WNER:
IMP 04500-00-00-068C2 TMP 04500-00-00-068EO
VICTORIAN HEIGHTS LLC VICTORIAN HEIGHTS LLC
455 2ND STREET NE, SUITE 400 455 2ND STREET NE, SUITE 400
CHARLOTTESVILLE, VA 22902 CHARLOTTESOLLE, VA 22902
DEVELOPER:
RIVERBEND DEVELOPMENT
455 2ND STREET NE, SUITE 400
CHARLOTTESVILLE, VA 22902
ENGINEER:
COLLINS ENGINEERING
200 GARRETT ST, SUITE K
CHARLOTTESOLLE, VA 22902
(434)293-J719
TAX MAP NO.:
04500-00-00-068C2 & 04500-00-00-068EO
TOTAL AREA:
TMP 45-68C2.- 2.710 ACRES (INST #.-202100020647)
IMP 45-68EO. 2.211 ACRES (INST #.202100020645)
TOTAL ACREAGE: 4.921 ACRES
ZONING:
R-15 RESIDENTIAL, CLUSTER DEVELOPMENT & BONUS DENSITY
FOR AFFORDABLE HOUSING. IN ADDITION, THE PROPERTY IS SUBJECT TO AIRPORT IMPACT
OVERLAY DISTRICT & STEEP MANAGED SLOPES OVERLAY DISTTICT
PROPOSED USE:
88 SINGLE FAMIL Y A TTA CHED & MUL TI-FAMIL Y RESIDEN TIAL UNI TS
(J4) TOWNHOUSE UNITS OF WHICH (11) ARE AFFORDABLE DWELLING UNITS
(54) MUL 77-FAMIL Y RESIDEN T7AL UNI IS (ONE & TWO BEDROOM UNI IS)
PROPOSED USE ACREAGE:
PROPOSED LOTS: J.286 ACRES (CONDOMINIUM & TOWNHOUSE LOTS)
PROPOSED OPEN SPACE. 1.228 ACRES
PROPOSED RIGHT OF WAY DEDICA TION: 0.407 ACRES
DENSI TY:
ALLOWABLE BY -RIGHT DENSITY: 15 DUIAC + MAX. 307. BONUS DENSITY INCREASE FOR
AFFORDABLE HOUSING
ALLOWABLE DENSITY.- (4.921 AC - 0.407 AC (RIW)) x 15 DUIACRE x 307. BONUS INCREASE
4.514 ACRES (ACREAGE OF SITE) x 15 DUA x JO/'. BONUS DENSITY INCREASE = 88 UNITS
ALLOWABLE DENSITY: 67 BY -RIGHT UNITS + 11 AFFORDABLE & 10 MARKET RATE UNITS
TOTAL ALLOWABLE DENSITY.- 88 (19.49 DWELLING UNITSIACRE WITH ROW DEDICA RON)
TOTAL PROPOSED DENSITY: 88 UNITS (19.49 DWELLING UNITSIACRE WITH ROW DEDICA RON)
OPEN SPACE.-
TOTAL OPEN SPACE REQUIRED (CLUSTER DEVELOPMENT 257.)
4.921 ACRES - 0.407 ACRES (R/W DEDICATION) = 4.514 ACRES (SITE ACREAGE)
TO TA L OPEN SPA CE REQUIRED: 4.514 A CRES x 257. = 1. 129 A CRIES
TOTAL OPEN SPACE PROPOSED: = 1.228 ACRES (27.27)
OPEN SPACE TO BE OWNED AND MAINTAINED BY THE HOMEOWNERS ASSOCIATION. ALL OPEN
SPACE SHALL BE RESERVED IN A DEED FOR THE COMMON USE OF LOT OWNERS IN THE
SUBDIVISION AND DEDICATED TO THE HOA.
TREE PRESER VA TION:
NONE REQUIRED WITH THE DEVELOPMENT
PRESERVEDIMANAGED SLOPES: NO PRESERVED SLOPES ARE SHOWN WITHIN THE LIMITS OF THE PROPERTY. 4 SMALL
AREAS OF MANAGED SLOPES ARE LOCATED ON THE PROPERTY AND SHOWN ON THE EXISTING
CONDITIONS PLAN SHEET.
BUILDING HEIGHTS.
NO MINIMUM BUILDING HEIGHT & MAXIMUM BUILDING HEIGHTS SHALL NOT EXCEED 65 FEET
NOTE� BUILDINGS GREATER THAN J STORIES MUST STEP BACK A MINIMUM OF 15 FEET AFTER
THE 3RD STORY OR A SPECIAL EXCEPTION SHALL BE APPROVED. A SPECIAL EXCEPTION
REQUEST HAS BEEN SUBMITTED WITH THIS SITE PLAN TO ELIMINATE THE BLDG STEPBACK,
TOWNHOUSE UNITS- 35' MAXIMUM BUILDING HEIGHT (3 STORIES) & EAVE HT.=29.67'
MULTI -FAMILY UNITS. BLDGS 1,2 AND J.- 60' MAXIMUM HEIGHT (4 STORIES)
PROPOSED HEIGHT = 48' MAXIMUM BLDG HEIGHT (EACH UNIT) + PERGOLA
BLDG WITH PERGOLA MAX. HEIGHT = 54,
NOTE- PERGOLAS SHALL BE LOCATED ON THE INTERIOR SIDE WALLS AND WILL NOT AFFECT
THE OVERALL MIN. SIDE SETBACK.
SE TBA CKS.
FRONT: 5' MINIMUM (18' MINIMUM FROM R1W OR EDGE OF SIDEWALK TO GARAGE) AND 25'
MAXIMUM
SIDE: 5 FEET, (NOTE: ANY DWELLING UNIT THAT EXCEEDS 35 FEET IN HEIGHT SHALL E
SETBACK 5 FEET PLUS 1 FOOT FOR EACH FOOT THE DWELLING UNIT EXCEEDS 35 FEET
TOWNHOUSE UNITS- 5' SIDE SETBACK
CONDOMINIUM BLDG: 5' + (48' - J5) = 18' REQUIRED MINIMUM SIDE SETBACK
REAR: 20' MINIMUM.
NOTE: COVERED PORCHES, BALCONIES, CHIMNEYS EAVES, AND THE LIKE ARCHITECTURAL
FEATURES MAY PROJECT NOT MORE THAN FOUR FEET INTO ANY REQUIRED YARD PROVIDED
THAT NO SUCH FEATURE SHALL BE LOCATED CLOSER THAN SIX FEET FROM ANY LOT LINE.
SUBDIVISION STREETS-
CURB & GU TIER
WA TERSHED:
SOUTHFORK RIVANNA RIVER WATERSHED
AGRICULTURALI FORESTAL DISTRICT. NONE
TOPO & SURVEY.
TOPOGRAPHY PROVIDED BY ROUDABUSH, GALE AND ASSOCIATES JANUARY 2021. THE
BOUNDARY LINE INFORMAT70N IS PROVIDED BY TIMMONS GROUP. INFORMATION FIELD VERIFIED
BY COLLINS ENGINEERING OCTOBER 2021.
DA TUM:
NAD 83
EXISTING VEGETATION.
BOTH PARCELS ARE PRIMARY WOODED, WTH EXCEPTION FOR THE CLEARED AREA
ASSOCIATED WITH THE UTILITY EASEMENTS
LIGHTING:
NO SITE OR STREET LIGHTING IS PROPOSED KITH THIS PROJECT DUSK TO DAWN LIGHTING
WILL BE PROVIDED ON EACH BUILDING. ANY SITE LIGHTING SHALL CONFORM TO ALBEMARLE
COUNTY ZONING ORDINANCE REQUIREMENTS.
PARKING:
88 SINGLE FAMILY ATTACHED & MULTI -FAMILY UNITS = 176 OFF-STREET PARKING SPACES
REQUIRED
MINIMUM (1) DRIVEWAY SPACE + (1) GARAGE SPACE
TOTAL PARKING PROVIDED: 176 OFF-STREET PARKING SPACES
GUEST SPACES 1 SPACE PER 4 UNITS = 22 SPACES REQUIRED
PROVIDED GUEST PARKING SPACES (ON -STREET PARKING) = 25 SPACES
ROADWAYS AND PAVED
CIRCULAT70N AREA = 28,609 SF (ACCESS EASEMENTITRAVELWAY)
IMPERVIOUS AREAS (WITHIN LOD): PROPOSED ROADWAY & DRIVEWAYS= 6J,272 SF
PROPOSED SIDEWALK & CONCRETE = 12,723 SF
PROPOSED BUILDINGS = 59,290 SF
TOTAL = lJ5,285 SF
PHASING:
THIS PROPERTY SHALL BE DEVELOPED WITHIN 1 PHASE
BUILDING SITES.
PARCELS 1-15 AND THE RESIDUE PARCEL EACH CONTAIN A BUILDING SITE THAT COMPLIES WITH
THE REQUIREMENTS OF SECTION 4.2.1 OF THE ALBEMARLE COUNTY ZONING ORDINANCE.
BURIAL SITES:
NO CEMETERIES WERE FOUND DURING FIELD INVESTIGAT70N OF THE SITE.
STREAM BUFFERS:
NO STREAM BUFFERS ARE LOCATED ON THESE PROPERTIES OR WITHIN THE LIMITS OF THIS
PROJECT AREA.
FLOODPLAIN.
THIS PROPERTY IS NOT IN A FLOODPLAIN ZONE As SHOKIV ON FEMA MAP#5100JCO229D, DATED
FEBRUARY 4, 2005. THIS PROPERTY IS NOT LOCATED WITHIN A DAM INUNDATION ZONE.
RETAINING WALLS:
RETAINING WALLS ARE PROPOSED WITH THE DEVELOPMENT AS SHOWN ON THE PLAN, SEE
SHEET4 FOR DETAILS. RETAINING WALLS GREATER THAN 3' IN HEIGHT REQUIRE A SEPARATE
BUILDING PERMIT WALLS EXCEEDING 4' IN HEIGHT REQUIRE A STAMPED ENGINEERING DESIGN.
WALLS CROSSING LOT LINES REQUIRE AN EASEMENT.
LANDSCAPING:
STREET TREES ARE PROPOSED ALONG THE NEIGHBORHOOD STREETS IN ACCORDANCE WITH
ALBEMARLE COUNTY LANDSCAPING REQUIREMENTS WITHIN SECT70N 32.Z9 OF THE COUNTY CODE
A LANDSCAPING PLAN WILL BE PROVIDED WTH THE FINAL SITE PLAN FOR COUNTY REVIEW AND
APPROVAL. ALL LANDSCAPING REQUIREMENTS SHALL BE SHOWN ON THIS FINAL LANDSCAPING
PLAN. STREET TREES SHALL BE PROVIDED ALONG THE PUBLIC STREETS 50, D.C. IN
ACCORDANCE WITH VDOT AND ALBE CO. STANDARDS.
TRA SH.
EACH UNIT SHALL HAVE AN INDIVIDUAL TRASH CONTAINER, AND ALL TRASH SHALL BE COLLECTED
BY A DRIVING DUMPSTER SERVICE.
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VICTORIAN HEIGHTS SCOTT R. LINS��
U No. 35791 11�:-
11/21/22
VSMP AMENDMENT PLAN IONAL
TMP 45-80
)GEWOO 4I-a
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ZONING; RURAL
DB.5163, PG-405
"W"P0202100031MV4
RIO DISTRICT
ALBEMARLE COUNTY, VIRGINIA
WiTMP 45-74A
BER, LEWIS A LIVING
TRUST
ZONING: RURAL
DB 4998, PG-437
1 0 1 1 1:: 1.,
LOT� LO
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SCALE: 1" = 50'
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HINES, ZE[,DA MAE OR
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ZONING: RURAL
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RECREA T70N AREA: REQUIRED RECREA77ONAL AREA: 88 UNITS x 200 SF = 17,600 SF
PROPOSED 22,220 SF (0.51 AC) INCLUDING (1) TOT LOT (2,515 SF), (1) RECREATION FIELD
(8,000 SF), AND PASSIVE RECREAT70NAL AMENITIES
TOT LOT AREA SHALL INCLUDE THE FOLLOWING, AT A MINIMUM:
ONE (1) SWING (FOUR SEATS)
ONE (1) SLIDE WITH TWO (2) CLIMBERS
ONE (1) BUCKABOUT OR WHIRL
TWO (2) BENCHES
RECREATIONAL PLAYFIELD
NOTE: A RECREATIONAL SUBSTITUTION WAIVER WILL BE SUBA41TTED WITH THE FINAL SITE
PLAN FOR THE PROPOSED RECREAT70NAL AMENITIES WITHIN THE DEVELOPMENT
OFFS/ TE EA SEMEN T ALL PROPOSED GRADING SHALL BE CONSTRUCTED ON SITE, WITHIN EXISTING RIGHT-OF-WAY
OR WITHIN EXISTING EASEMENTS. OFFSITF UTILITY EASEMENTS AND SIGHT DISTANCE
EASEMENTS ARE PROPOSED WITH THIS DEVELOPMENT.
TMP45-72
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Sheet List Table
Sheet
Number
Sheet Title
I
COVER
2
EXISTING CONDITIONS
3
EROSION & SEDIMENT CONTROL NARRATIVE
4
EROSION & SEDIMENT CONTROL DETAILS
5
EROSION & SEDIMENT CONTROL PLAN - PHASE 1
6
EROSION & SEDIMENT CONTROL PLAN - PHASE 11
7
EROSION & SEDIMENT CONTROL PLAN - PHASE III
8
STORM)NATER MANAGEMENT PLAN
9
STORMWATER MANAGEMENT DETAILS
10
STORMWATER MANGEMENT DETAILS
11
OVERALL GRADING PLAN
12
DRAINAGE MAP
13
OFFSITE DRAINAGE MAP
13 TOTAL NUMBER OF SHEETS
AMENDMENT
LAYOUT, UTILITIES, & ROAD GRADING UPDATED
2. SEDIMENT BASIN:L TO REMAIN ESC PHASES 1-111 WITH
DIVERSIONS AND PERMANENT PIPING OUTFALL
3. SEDIMENTTRAP 3 SIZE REDUCED WITH NEW DIVERSION
TO SEDIMENT BASIN 2
4. UNDERGROUND DETENTION SYSTEM RAISED 4'
VERTICALLY.
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11/21/22
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(TO BE EXTINGUISHED) 494 11 0 LU
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REMOVEDAND EXISTING PIPETO BE EASEMENT REMOVED. EXISTING PIPE TO REMAIN.
ABANDONED IN PLACE WITH THE USE Z VARIABLE WIDTH WATERLINE LU _j
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WATER AND SEWER AUTHORITY - EASEMENT FOR PUBLIC USE
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TMP 45
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BE REMOVED FOR NEW /CHARLOTTESVILLE
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TMP 45-68C3. NOTES:
MALLOY FORD D.B. 534, PG. 154 (1973) SHOWS ADJACENT LANDOWNERS GRANTING A 40'RIGHT-OF-WAY ACROSS WOODBURN ROAD. THE LANDOWNER OF
TMP 45-68C2DID NOT SIGN THIS OMNIBUS DEED. THEREFORE THE PROPERTY LINE IS SHOWN TO THE CENTERLINE OF WOODBURN ROAD PER
DB PG D.B- 478, PG. 526, A PRESCRIPTIVE EASEMENT i5'SOUTH OF CENTERLINE OF WOODBURN IS SHOWN HEREON.
ZONING: HC
-4863, Aft
2. THE BOUNDARY SURVEY SHOWN HEREON IS BASED ON FIELD RUN SURVEY BY TIMMONS GROUP COMPLETED ON SEPTEMBER 28,2021.
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CURVE TABLE
CURVE
RADIUS
LENGTH
TANGENT
DELTA
CHORD BEARING
CHORD
C4
2760.66'
40.23'
20. 1 V
0050106"
S4104754"W
40.23'
C5
5755.50'
141.11'
70.56'
1024'17"
S41'3049"W
141.10'
C6
1 2760.66'
435.08'
1 217.99'
1 9*0148"
S36'51'58"W
434.63'
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ALBEMARLE COUNTY, VA.
U)
3. BASIS OF MERIDIAN IS NAD83 (NA2011), VIRGINIA STATE GRID, SOUTH ZONE. JOB NO.
4. UNDERGROUND WATERLINES SHOWN ON THIS SHEET WERE FIELD LOCATED FROM MARKS BASED UPON MISS UTILITY (8n) TICKET NO: 202196
B1267oi3i6.
5. THE PROPERTIES SHOWN HEREON ARE WITHIN AN AIRPORT IMPACT OVERLAY AREA. SCALE
6. THE PROPERTIES SHOWN HEREON ARE WITHIN A WATER SUPPLY PROTECTION AREA PER COUNTY GIS. 1 11 = 30
7. THE PROPERTIES SHOWN HEREON ARE NOT LOCATED WITHIN AN AGRICULTURAL -FOREST DISTRICT. SHEET NO.
8. THE PROPERTIES SHOWN HEREON ARE NOT WITHIN AN ENTRANCE CORRIDOR OVERLAY AREA.
I inch ft. 2
EROSION & SEDIMENT CONTROL MEASURES: EROSION CONTROL NOTES DESCRIPTION OF EROSION & SEDIMENT EROSION CONTROL NOTES & NARRATIVE
STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN ACCORDANCE WTH THE WRGINIA EROSION AND SEDIMENT ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION CONTROL MEASURES: PURPOSE. TH 0
CONTROL HANDBOOK. STRUCTURAL PRACTICES USED IN THIS SECTION CONSIST OF THE FOLLOWNG: AND SEDIMENT CONTROL PRAC77CES MLL BE CONSTRUCTED AND MAINTAINED THE PURPOSE OF THIS LAND DISTURBING ACTIVITY IS TO GRADE THE VICTORIAN HEIGHTS SITE FOR A
J.01 SAFETY FENCE. ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE ORGINIA EROSION AND SEDIMENT CONTROL MEASURES.- - RESIDEN77AL DEVELOPMENT THE TOTAL AREA TO BE DISTURBED WITH THIS PLAN IS 5. 13 ACRES. -
A PROTEC77VE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. TO PROHIBIT THE UNDESIRABLE USE OF AN EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA REGULATIONS VR IT IS AN77CIPATED TO USE CONSTRUCTION ENTRANCES, DIVERSION DIKES, SEDIMENT BASINS & EXISTING SITE CONDITIONS: III,,
EROSION CONTROL MEASURE BY THE PUBLIC. APPLICABLE TO ANY CONTROL MEASURE OR SERIES OF MEASURES WHICH CAN BE CONSIDERED 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS. TRAPS, AND SILT FENCES WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE TEMPORARY MOST OF THIS SITE IS WOODED AND SLOPES TO THE SOUTHEAST AND NORTHEAST. THE SITE IS SCOTT R. INS��
UNSAFE BY VIRTUE OF POTEN77AL ACCESS BY THE PUBLIC. ES-2. THE PLAN APPROWNG AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE 0 "
SEEDING MLL BE USED IMMEDIATELY FOLLOWNG ALL LAND DISTURBANCE ACTIORES. LOCATED TO THE NORTHWEST OF BERKMAR DRIVE AND SOUTHEAST OF WOODBURN ROAD. THE U No. 35791 1�
J.02 CONSTRUCTION ENTRANCE: PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT MAJORITY OF THE SITE DRAINS TO VARIOUS EXISTING CULVERTS AND INLETS, AN EXISTING
A STABILIZED PAVED CONSTRUCT70N ENTRANCE KITH A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A OF LAND DISTURBING AC77WTY, AND ONE WEEK PRIOR TO THE FINAL TEMPORARY STOCKPILE AREAS WLL BE MAINTAINED FROM TOPSOIL THAT WLL BE STRIPPED WATERMAIN TO REMAIN RUNS DIRECTLY THROUGH THE MIDDLE OF THE SITE AND ITS WATERLINE 16 11/21/22
CONSTRUCTION SITE. TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. INSPEC RON. FROM AREAS TO BE GRADED AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL EASEMENT IS CLEARED. �
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CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOKN ON THE PLANS TO REDUCE 774E AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ES-J.ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR BE ON SITE AND SHALL BE STABILIZED WTH A TEMPORARY VEGETATIVE COVER. PERMANENT -
ROAD WA Y5. ADJACENT AREAS: IONAL
TO OR AS THE FIRST STEP IN CLEARING. SEEDING WLL BE PERFORMED FOR ALL AREAS WHICH WLL NO LONGER BE EXCAVATED AND SITE IS BORDERED TO THE SOUTHEAST BY BERKMAR DRIVE AND TO THE NORTHWEST BY
J.05 SILT FENCE: ES-4.A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE WHERE CONSTRUCTION ACTIO77ES HAVE CEASED. PERMANENT SEEDING SHALL ALSO BE WOODBURN ROAD. VACANT LAND IS ALONG THE NORTHEAST BORDER OF THE SITE AND A .
A TEMPORARY SEDIMENT BARRIER CONSIS77NG OF A SYNTHETIC FIL TER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPORTING POSTS AND MA IN TA INED ON THE S1 TE A T A L L TIMES.
ENTRENCHED, TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUC77ON OPERA 77ONS IN ORDER ES-5. PRIOR TO COMMENCING LAND DISTURBING ACT7077ES IN AREAS OTHER THAN PERFORMED FOR ALL DENUDED AREAS WHICH WLL BE LEFT DORMANT FOR A YEAR OR MORE. RESIDENTIAL DWELLING EXISTS TO THE SOUTHWEST OF THE SITE.
TO PREVENT SEDIMENT FROM LEA WNG THE SITE, AND TO DECREASE THE VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL INDICA TED ON THESE PLANS (INCLUDING BU T NO T LIMI TED TO, OFF-S/ TE SELECTION OF SEED MIXTURE WLL DEPEND ON THE TIME OF YEAR APPLIED. OFFSITE LAND DISTURBANCE:
FLOWS. 774E SILT FENCE BARRIERS SHALL BE INSTALLED DOWN SLOPE OF AREAS WTH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF TEMPORARY SEEDING WLL BE PERFORMED FOR ALL DENUDED AREAS WHICH MLL BE LEFT IMPROVEMENTS TO BE MADE WITHIN THE VDOT RIGHT-OF-WAY ALONG BERKMAR DRIVE AND
FROM SHEET FLOW AS INDICATED. 774EY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WTH THE BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A
SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWYER FOR REV`EW AND DORMANT FOR MORE THAN SEVEN DAYS. THESE AREAS SHALL BE SEEDED WTH FAST WOODBURN ROAD.
WRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH). CRITICAL AREAS:
3.07 STORM DRAIN INLET PROTECTION.- APPROVAL BY THE PLAN APPROVING AUTHORITY. GERMINA 77NG VEGETA 77ON IMMEDIA TEL Y FOLLOWNG GRADING OF THOSE AREAS. SELECT70N OF TREE PROTECTION FENCING AND SILT FENCE SHALL BE MAINTAINED ALONG THE PROPERTY LINES AS
A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET TO PREVENT SEDIMENT FROM ES-6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLA77ON OF ANY ADD177ONAL SEED MIXTURE MLL DEPEND ON THE 77ME OF YEAR APPLIED.
ENTERING STORM DRAINAGE SYSTEMS PRIOR TO PERMANENT STABILIZAT70N OF THE DISTURBED AREA. INLET PR07ECTION APPLIES WHERE EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND CONSTRUCTION ENTRANCE: SHOWN ON THE PLAN TO THE EAST NORTH, AND SOUTH OF THE SITE TO PROTECT THE ADJACENT
STORM DRAIN INLETS ARE TO BE MADE OPERA 77ONAL BEFORE PERMANENT STABILIZA 77ON OF THE CORRESPONDING DISTURBED DRAINAGE AREA. SEDIMENTA77ON AS DETERMINED BY THE PLAN APPROWNG AUTHORITY. A STABILIZED PA VED CONSTRUCTION ENTRANCE WTH A WASH RACK LOCATED AT POINTS OF PROPERTIES. CONTRACTOR SHALL ENSURE THAT ALL SEDIMENT MAINTENANCE CONTROLS ARE ALONG
3.08 CULVERT INLET PROTECTION. ES-7.ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL WOODBURN ROAD AND BERKMAR DRIVE TO ENSURE THAT NO SEDIMENT LEAVES THE SITE AND U)
A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM CULVERT. TO PREVENT SEDIMENT FROM ENTERING STORM VEHICULAR INGRESS AND EGRESS ON A CONSTRUCTION SITE. TO REDUCE THE AMOUNT OF MUD DRAINS ONTO THE ROADS. F_
MEASURES AT ALL 77MES DURING LAND DISTURBING AC770TIES AND DURING Z
CULVERTS PRIOR TO PERMANENT STABILIZAT70N OF THE DISTURBED AREA. INLET PR07EC77ON APPLIES WHERE STORM CULVERTS ARE EXIS77NG SITE DEVELOPMENT UN77L FINAL STABILIZA77ON IS ACHIEVED. TRANSPORTED ONTO PA VED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF SOILS: Lu
OR TO BE MADE OPERAT70NAL BEFORE PERMANENT STABILIZAT70N OF THE CORRESPONDING DRAINAGE AREA. Z
ES-8. DURING DEWA 7ERING OPERA RONS, WA TER WLL BE PUMPED IN TO AN CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE SOILS MAP IS INCORPORATED INTO EROSION CONTROL PLAN PHASE I WITH SOILS DATA INCLUDED x
J.09 TEMPORARY DIVERSION DIKE. APPROVED WATER FILTERING DEWCE AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS. W TH THIS NA RRA TI VE. 0
A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA. TO DIVERT STORM RUNOFF U
ES-9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES SILT FENCE., SEQUENCE OF CONSTRUCTION: CIL
FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPR07ECTED DIS77JRBED AREAS AND SLOPES TO A STABILIZED OUTLET TO DIVERT PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT ANY A TEMPORARY SEDIMENT BARRIER CONSIS77NG OF A SMTHE77C FILTER FABRIC STRETCHED PHASE I: U3
SEDIMENT -LADEN RUNOFF FROM A DIS77JRBED AREA TO A SEDIMENT -TRAPPING FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE
WHEREVER STORMINA TER RUNOFF MUST BE TEMPORARIL Y DIVERTED TO PR07ECT DIS77JRBED AREAS AND SLOPES OR RETAIN SEDIMENT ON S17F NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFEC77VENESS OF THE U) -, �:
DURING CONSTRUCTION. 774ESE STRUCTURES GENERALLY HAWF A LIFE EXPECTANCY OF 18 MON774S OR LESS WHICH CAN BE PROLONGED W774 EROSION CONTROL DEWCES SHALL BE MADE IMMEDIATELY. ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED. TO INTERCEPT AND DETAIN 1. N077FY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED.
SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSMUC77ON OPERA 77ONS IN 2. PRIOR TO DISTURBANCES, T74E LIMITS OF DISTURBANCE SHALL BE FLAGGED AND THE TREE Z Z * Z
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PROPER MAINTENANCE. PROTECT70N FENCING SHALL BE INSTALLED. 0 W 0
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J. 12 DIVERSION. ORDER TO PREVENT SEDIMENT FROM LEA WNG THE SITE TO DECREASE THE VELOCITY OF SHEET J. NO EROSION CONTROL MEASURES MAY BE REA40VED DURING THE CONSTRUCTION PROCESS � �
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A CHANNEL CONSTRUCTED ACROSS A SLOPE W774 A SUPPOR77NG EAR774EN RIDGE ON 774E LOWER SIDE. TO REDUCE SLOPE LENGTH AND TO General construction notes for Erosion and Sediment Control plans FLOWS AND LOW-70-MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT I'MI U _1 Z
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INTERCEPT AND DIVERT STORMWATER RUNOFF TO STABILIZED OUTLETS AT NON -EROSIVE VELOCITIES. APPLIES WHERE RUNOFF FROM AREAS OF INSTALLED DOWN SLOPE OF AREAS WTH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF 4. THE PROPOSED CONSTRUCTION ENTRANCE WITH WASH AREAS SHALL BE INSTALLED AS SHOKIV ON 0 UJ
HIGHER ELEVA77ON MAY DAMAGE PROPERTY CAUSE EROSION, OR INTERFERE WTH 774E ESTABLISHMENT OF VEGETA77ON ON LOWER AREAS, 1. 'The plan approving authority must be notified one week prior to the pre -construction 0 r- F-
FROM SHEET FLOW AS INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH THE PLANS. THE CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCT70N VEHICLE � =)
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WHERE SURFACE ANDIOR SHALLOW SUBSURFACE FLOW IS DAMAGING SLOPING UPLAND, AND WHERE 774E SLOPE LENG774 NEEDS TO BE REDUCED conference, one week prior to the commencement of land disturbing activity, and one week RAINFALL AND MAINTAINED IN ACCORDANCE WIN THE WRGINIA EROSION & SEDIMENT CONTROL ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE 1=4 0 � >_
TO MINIMIZE SOIL LOSS. or to the final inspection. HANDBOOK (VESCH). TRANSPORT OF SEDIMENT BY (VEHICULAR) TRACKING ONTO THE PAVED SURFACE. WHERE V) x
J. 13 TEMPORARY SEDIMENT TRAP.- pri > - � 5
A TEMPORARY PONDING AREA FORMED BY CONSTRUC77NG AN EARTHEN EMBANKMENT WTH A STONE OUTLET TO DETAIN SEDIMENT -LADEN 2. All erosion and sediment control measures will be constructed and maintained according to SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED > (n 3:
minimum standards and specifications of the Virginia Erosion and Sediment Control PERMANENT STABILIZATION: UJ > Lu
RUNOFF FROM SMALL DIS77JRBED AREAS LONG ENOUGH TO ALLOW THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. USE BELOW DIS77JRBED THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DIS77JRBED AREAS BY PLANTING THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY UJ Q� Z
AREAS WHERE THE TOTAL CONTRIBUTING DRAINAGE AREA IS LESS THAN J ACRES, WHERE THE SEDIMENT TRAP WLL BE USED NO LONGER THAN Handbook and Virginia Regulations VR 625-02-00 Erosion and Sediment Control SHOVELING OR SWEEPING AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET W
18 MONTHS, AND IT MAY BE CONSTRUCTED EITHER INDEPENDENTLY OR IN CONJUNCTION W774 A TEMPORARY DIVERSION DIKE. Regulations. SEED. TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO W 0
WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER. U_
J. 14 TEMPORARY SEDIMENT BASIN. 3. All erosion and sediment control measures are to be placed prior to or as the first step in PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO 5. INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE PHASE I EROSION CONTROL 0
A TEMPORARY BARRIER OR DAM M774 A CONTROLLED STORMWATER RELEASE STRUCTURE FORMED BY CONSTRUCTING AN EMBANKMENT OF clearing. S17F CONDITIONS, AND ALLOWS SELECT70N OF THE MOST APPROPRIATE PLANT MATERIALS TO III
COMPACTED SOIL ACROSS A DRAINAGEWAY. TO DETAIL SEDIMENT -LADEN RUNOFF FROM DIS77JRBED AREAS IN "WET" AND "DRY" STORAGE SHEET THIS INCLUDES A SEDIMENT BASIN, (2) SEDIMENT TRAPS, W`RE SILT FENCE, AND !I
LONG ENOUGH FOR 774E MAJORITY OF 774E SEDIMENT TO SETTLE OUT APPLIES BELOW DIS77JRBED AREAS WHERE THE TOTAL CONTRIBUTING 4. A copy of the approved erosion and sediment control plan shall be maintained on the site at IMPROVE WLDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY UPON COMPLE77ON OF DIVERSION DIKES. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRS T CL
DRAINAGE AREA IS EQUAL TO OR GREA TER THAN THREE ACRES. THERE MUST BE SUFFICIENT SPACE AND APPROPRIA TE TOPOGRAPHY FOR THE all times. CONSTRUCTION ACT1077ES, ALL AREAS WLL RECEIVE A PERMANENT VEGETATIVE COVER. STEP WITH ANY LAND DISTURBANCE ACT70TY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE =)
CONSTRUCTION OF A TEMPORARY IMPOUNDMENT 5. Prior to commencing land disturbing activities in areas other than indicated on these plans .TEMPORARY SEEDING., LAND DISTURBANCE TAKES PLACE.
J. 18 OUTLET PRO TEC 770N.- (including, but not limited to, off -site borrow or waste areas), the contractor shall submit a THE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON D1577JRBED AREAS BY SEEDING 6. ONCE ALL THE PHASE I EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE
STRUCTURALL Y LINED APRONS OR 0774ER ACCEPTABLE ENERGY DISSIPA 77NG DEWCES PLACED A T 774E OUTLETS OF PIPES OR PA VED CHANNEL supplementary erosion control plan to the owner for review and approval by the plan WIN APPROPRIATE RAPIDLY GROWNG ANNUAL PLANTS. TO REDUCE EROSION AND EROSION CONTROL PHASE I PLAN AND THE INSPECTOR HAS APPROVED THE EROSION CONTROL
SECTIONS. TO PREVENT SCOUR AT STORMWATER OUTLETS� TO PR07ECT 774E OUTLET STRUCTURE, AND TO A41NIMIZE 774E P07EN77AL FOR approving authority. SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT WLL NOT BE BROUGHT TO FINAL GRADE MEASURES, THE CONTRACTOR CAN BEGIN THE MINIMUM GRADING OPERATIONS. STABILIZATION
DOWNSTREAM EROSION BY REDUCING THE VELOCITY AND ENERGY OF CONCENTRATED STORMWA TER FLOWS APPLICABLE TO THE OUTLETS OF
ALL PIPES AND ENGINEERED CHANNEL SECTIONS. 6. The contractor is responsible for installation of any additional erosion control measures FOR A PERIOD OF MORE THAN JO DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES SUCH AS DAMS, DIKES AND DIVERSIONS
J. 19 RIPRAP. necessary to prevent erosion and sedimentation as determined by the plan approving DOWNSTREAM OR OFF-S17E AREAS, AND TO PROWDE PROTECTION TO BARE SOILS EXPOSED IMMEDIA TEL Y AFTER INSTALLA TION.
A PERMANENT EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WTH FILTER FABRIC OR GRANULAR UNDERLINING. TO authority. DURING CONSTRUC77ON UN77L PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES 7. PERMANENT OR TEMPORARY SOIL STABILIZAT70N SHALL BE APPLIED TO DENUDED AREAS 1417HIN
PR07ECT THE SOIL FROM THE EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW THE VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING 7. All disturbed areas are to drain to approved sediment control measures at all times during CAN BE ESTABLISHED. SEVEN DA YS AFTER FINAL GRADE IS REA CHED ON AN Y POR TION OF THE S1 TE. TEMPORAR Y SOIL
THE P07EN77AL FOR INFILTRATION, AND TO STABILIZE SLOPES WIN SEEPAGE PROBLEMS, ANDIOR NON -COHESIVE SOILS. USE WHEREVER SOIL land disturbing activities and during site development until final stabilization is achieved. STABILIZA T70N SHALL BE APPLIED WITHIN SEVEN DA YS TO DENUDED AREAS THA T MA Y NOT BE A T
AND WATER INTERFACE AND THE SOIL CONDITIONS, WATER TURBULENCE AND VELOCITY EXPECTED VEGETA77VE COVER, ETC., ARE SUCH THAT 8. During dewatering operations, water will be pumped into an approved filtering device. DUST CONTROL: FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN JO DAYS.
THE SOIL MAY ERODE UNDER THE DESIGN FLO W CONDI 77ONS. 9. The contractor shall inspect all erosion control measures periodically and after each runoff- REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLIT70N AND PERMANENT STABILIZA T70N SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR cli C4
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3.20 ROCK CHECK DAMS: CONSTRUCTION ACTIOTIES. � �
SMALL TEMPORARY STONE DAMS CONSTRUCTED ACROSS A SWALE OR DRAINAGE DITCH. TO REDUCE THE VELOCITY OF CONCENTRATED producing rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of MORE THAN ONE YEAR !I 00 _,
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STORMINATER FLOWS� THEREBY REDUCING EROSION OF THE SWALE OR DITCH. THIS PRACTICE ALSO TRAPS SEDIMENT GENERATED FROM the erosion control devices shall be made immediately. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND 0 1 �
ADJACENT AREAS OR THE DITCH ITSELF, MAINLY BY PONDING OF THE STORMWAITER RUNOFF. THIS PRACTICE, U77LIZING A COMBINA77ON OF REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, �� 1
1
STONE SIZES, IS LIMITED TO USE IN SMALL OPEN CHANNELS WHICH DRAIN 10 ACRES OR LESS. 10. All fill material to be taken from an approved, designated borrow area. TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. PHASE //.- I I I I I I
3.31 TEMPORARY SEEDING: 11. All waste materials shall be taken to an approved waste area. Earth fill shall be inert DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF 8. PHASE H CONSTRUCTION SHALL INCLUDE BUILDING THE RETAINING WALLS ALONG BERKMAR DRIVE,
THE ESTABLISHMENT OF A TEMPORARY VEGETA77VE COVER ON DIS77JRBED AREAS BY SEEDING WTH APPROPRIATE RAPIDLY GROWNG ANNUAL materials orly, free of roots, stumps, wood, -rubbish, and other debris. DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE KITH THE VESCH. INSTALLING THE ROAD CONNECTION BETWEEN BERKMAR DRIVE AND WOODBURN ROAD AND
PLANTS. TO REDUCE EROSION AND SEDIMENTA77ON BY STABILIZING DISTURBED AREAS THAT MLL NOT BE BROUGHT TO FINAL GRADE FOR A INSTALLING THE DRAINAGE STRUCTURES.
PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROWDE 12. Borrow or waste areas are to be reclaimed within 7 days of completion per Zoning TEMPORARY DIVERSION DIKE. 9. AFTER THE RETAINING WALLS ARE BUILT THE CONTRACTOR SHALL INSTALL SEDIMENT TRAP
PR07EC77ON TO BARE SOILS EXPOSED DURING CONSTRUCTION UN77L PERMANENT VEGETA77ON OR 07HER EROSION CONTROL MEASURES CAN BE Ordinance section 5.1.28. A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED DIRECTLY UPSLOPE OF THE PROPOSED RETAINING WALLS TO CAPTURE RUNOFF FROM THE 0
ESTABLISHED. 13. All inert materials shall be transported in compliance with section 13-301 of the Code of AREA WHICH DIVERTS OFF -SITE RUNOFF AWAY FROM UNPROTECTED SLOPES AND TO A
3.32 PERMANENT STABILIZATION. Albemarle. STABILIZED OUTLET OR TO DIVERT SEDIMENT-LAIDEN RUNOFF TO A SEDIMENT TRAPPING NORTHWEST END OF THE SITE. CONTRACTOR TO ALSO INSTALL DIVERSION DIKES TO SEDIMENT
THE ESTABLISHMENT OF PERENNIAL VEGETA77VE COVER ON DISTURBED AREAS BY PLAN77NG SEED. TO REDUCE EROSION AND DECREASE BASIN AND TRAP ONCE INSPECTOR HAS APPROVED SEDIMENT TRAP AND DIVERSION SIKES, lr,-
14. Borrow, fill or waste activity involving industrial -type power equipment shall be lirnited to STRUCTURE. MAXIMUM EFFECTIVE LIVE IS 18 MONTHS. CONTRACTOR CAN CONTINUE GRADING AND ROAD AND UTILITY CONSTRUCTIONS UPSLOPE OF THE [�_
SEDIMENT YIELD FROM DIS77JRBED AREAS. TO PERMANENTLY STABILIZE DIS77JRBED AREAS IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO 7 ""
SITE CONDITIONS, AND ALLOWS SELEC77ON OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE MLDLIFE HABITAT TO ENHANCE the hours of 7:00am to 9:00pm. ROCK CHECK DAMS: SEDIMENT TRAP. co
NA77JRAL BEAUTY. UPON COMPLE77ON OF CONSTRUC77ON AC77W77ES, ALL AREAS WLL RECEIVE A PERMANENT VEGETA77VE COVER. 15. Borrow, fill or waste activity shall be conducted in a safe manner than maintains lateral SMALL, TEMPORARY STONE DAMS CONSTRUCTED ACROSS A DRAINAGE DITCH TO REDUCE THE 1O.PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN (yi
3.35 MULCHING, support, or order to minimize any hazard to persons, physical damage to adjacent land and VELOCITY OF CONCENTRATED FLOWS, REDUCING EROSION OF THE SWALE OR DITCH. LIMITED TO SEVEN DA YS AFTER FINAL GRADE IS REA CHED ON AN Y POR TION OF THE S1 TE. TEMPORAR Y SOIL 00
APPLICA 77ON OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE. TO PREVENT EROSION BY PR07EC77NG THE SOIL improvements, and damage to any public street because o slides, sinking, o r collapse. Z
SURFACE FROM RAINDROP IMPACT AND REDUCING THE VELOCITY OF OVERLAND FLOW. TO FOSTER THE GROWTH OF VEGETA77ON BY INCREASING 16. The developer shall reserve the right to install, maintain, remove or convert to permanent USE IN SMALL OPEN CHANNELS WHICH DRAIN 10 ACRES OR LESS, SHOULD NOT BE USED IN STABILIZA TION SHALL BE APPLIED WITHIN SEVEN DA YS TO DENUDED AREAS THA T MA Y NOT BE A T (N
A VAILABLE MOISTURE AND PROVIDING INSULA 77ON AGAINST EXTREME HEA T AND COLD. AREAS WHICH HA VE BEEN PERMANENTL Y SEEDED stormwater management facilities where applicable all erosion control measures required LIVE STREAMS. FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. 4 <
SHOULD BE MULCHED IMMEDIATELY FOLLOWNG SEEDING. AREAS WHICH CANNOT BE SEEDED BECAUSE OF THE SEASON SHOULD BE MULCHED by this plan regardless of the sale of any lot, unit, buil ng ro STORM DRAIN INLET PROTECTION. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR M _J
USING ORGANIC MULCH. MULCH MAY BE USED TOGETHER NTH PLAN77NGS OF TREES, SHRUBS, OR CERTAIN GROUND COVERS WHICH DO NOT di o ther portion of the property. 0! Nt
PROVIDE ADEQUA TE SOIL STABILIZA 77ON BY THEMSELVES, CAN BE USED IN CONJUNC77ON K17H TEMPORARY SEEDING. 17. Temporary stabilization shall be temporary seeding and mulching. Seeding is tobeat 75 THE INSTALLAT70N OF VARIOUS KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS MORE THAN ONE YEAR I 0-
J,J7 TREES. SHRUBS, WNES & GROUND COVERS: lbs/acre, and in the months of September to February to consist a 50150 rnix of Annual OR CURB INLET STRUCTURES PRIOR TO PERMANENT STABILIZA77ON OF THE DISTURBED AREA; PHASE ///.- C:)
STABILIZING DISTURBED AREAS BY ESTABLISHING VEGETA77VE COVER WTH TREES, SHRUBS, WNES, OR GROUND COVERS. TO AID IN STABILIZING Ryegrass and Cereal Winter Rye, or in March and April to consist of Annual Rye, cr May LIM17ED TO DRAINAGE AREAS NOT EXCEEDING ONE ACRE, AND NOT INTENDED TO CONTROL III C,%, F---
SOIL IN AREAS WHERE VEGETA77ON OVER THAN TURF IS PREFERRED, TO PROVIDE FOOD AND SHELTER FOR RLDLIFE WHERE RLDLIFE HABITAT IS 11. ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL, 7HE CONTRACTOR M 2: LU
through August to consist of German Millet. Straw mulch is to be applied at 80lbs/100sf. LARGE, CONCENTRATED STORMWATER FLOWS. CAN REMOVE SEDIMENT BASIN 1. NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AREAS N
DESIRABLE. APPLIES IN AREAS WHERE 77JRF ESTABLISHMENT IS DIFFICULT ON STEEP OR ROCKY SLOPES WHERE MOWNG IS NOT FEASIBLE, Alternatives are subject to approved by the County erosion control inspector. TEMPORARY SEDIMENT TRAP: ARE STABILIZED AND THE INSPECTOR GIVES PERMISSION. AT THE TIME OF TEMPORARY SEDIMENT >
WHERE ORNAMENTALS ARE DESIRABLE FOR LANDSCAPING PURPOSES, AND WHERE WOODY PLANTS ARE DESIRABLE FOR SOIL CONSERVATION, OR (N UJ P-4
TO ESTABLISH MLDLIFE HABITAT 18. Permanent stabilization shall be lime and fertilizer, permanent seeding, and mulch. A SMALL PONDING AREA, FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WTH A STONE BASIN 1'S REMOVAL AND THE INSTALLATION OF THE PERMANENT STORM SEWER SYSTEM, THE < 2: �--
J. 36 BLANKET MA TTING, Agricultural grade limestone shall be applied at 90lbs/1000sf, incorporated into the top 4-6 OUTLET ACROSS A DRAINAGE SWALE, TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL CONTRACTOR SHALL REMOVE THE TEMPORARY BARREL CONNECTION INTO THE EXISTING W
INSTALLA77ON OF A PROTEC77VE COVERING OR A SOIL STABILIZA77ON MAT ON A PREPARED PLAN77NG AREA OF A STEEP SLOPE OR CHANNEL TO inches of soil. Fertilizer shall be applied at 1000lbs/acre and consist of a 10-20-10 nutrient DISTURBED AREAS FOR ENOUGH TIME TO ALLOW MOST TO THE SUSPENDED SOLIDS TO SETTLE STRUCTURE ON BERKMAR DRIVE AND PLUG ITS OPENING WATERT7GHTD > 0 2�
AID IN THE CONTROLLING EROSION ON CRITICAL AREAS. nux. Permanent seeding shall be applied at 180lbs/acre and consist of 95% Kentucky 31 or OUT MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. 12.MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND -
3.38 TREE PRESERVATION AND PROTECTION. Tall Fescue and 0-5% Perennial Ryegrass or Kentucky Bluegrass. Straw mulch is to be TEMPORARY SEDIMENT BASIN SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM LLJ
PR07EC77ON OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION ACT7WTY TO ENSURE . are subject to approved by the County erosion control A TEMPORARY BARRIER OR DAM WTH CONTROLLED STORYWA TER RELEASE STRUCTURES WHICH IS ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK. _J 2! <
THE SURVIVAL OF DESIRABLE TREES WHERE THEY WLL BE EFFEC77VE FOR EROSION AND SEDIMENT CONTROL, WATERSHED PROTEC77ON applied at 80lbs/1 00sf. AlterrI Z
LANDSCAPE BEAUTIFICATION, DUST AND POLLU77ON CONTROL, NOISE REDUCTION, SHADE AND 07HER ENWRONMENTAL BENEFITS WHILE THE LAND inspector. FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. IT 13ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 _J UJ Z
IS BEING CONVERTED FROM FOREST TO URBAN- TYPE USES. APPLIES IN TREE -INHABITED AREAS SUBJECT TO LAND DISTURBING ACT714TIES. 19. Maintenance: All measures are to be inspected weekly and after each rainfall. Any damage DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER
3.39 DUST CONTROL: or clogging to structural measures is to be repair immediately. Silt traps are to be cleaned IS USED TO DETAIN SEDIMENT -LADEN RUNOFF FROM DRAINAGE AREAS J ACRES OR GREATER IIIIIII 5; 2: _J
REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND CONSTRUCTION ACTIVITIES. TO PREVENT FOR ENOUGH 77ME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT IT CAN BE NEEDED, UNLESS 07HERMSE AUTHORIZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED U) < 0
when 50% of the wet storage volume is filled with sediment. All seeded arm are to be SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY I I LLJ 0�
SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY reseeded when necessary to achieve a good stand of grass. Silt fence and diversion dykes CONSTRUCTED ONLY WHERE 77-IERE IS SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND F ---
PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT LIFE. DUST CONTROL MEASURES SHALL BE EMPLOYED TO f:J_ F-
PREVENT SURFACE AND AIR MOVEMENT OF DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WTH THE VESCH. which are collecting sediment to half their height must be cleaned and repaired MAXIMUIV EFFEC77VE LIFE IS 18 MONTHS UNLESS DESIGNED AS A PERMANENT POND BY A SEDIMEN TA RON. �__ Z
immediately. QUALIFIED PROFESSIONAL. 0 2: 0
20. All temporary erosion and sediment control measures are to be removed within 30 days of OUTLET PROTECTION. _J U) U
1992 3.32 final site stabilization, when measures are no longer needed, subject to approval by the THE INSTALLA77ON OF RIPRAP CHANNEL SECT70NS ANDIOR S77LLING BASINS BELOW STORM 0�
TABLE 331-A County erosion control inspector. DRAIN OUTLETS TO REDUCE EROSION AND UNDER-CUT77VG FROM SCOURING AT OUTLETS AND TO < > �--
LIALING REQUIREMENTS 21. This plan shall be void if the owner does not obtain a permit within I year of the date of REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS RECEIVING CHANNELS BELOW THESE = Z
TABLE 3.32-D FDR TEMPORAXY SITES approval. (Water Protection Ordinance section 17-204G.) 0 U 7 L E IS. W 0 U) LU
SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA R"orrunended Appliaition 22. Permanent vegetation shall be installed on all denuded areas within nine (9) months after CUL VER T INLET PRO TEC RON: I . [__ 2:
1111 Test of Aurim1wal UrrOstone the date the land disturbing activity commenced. (Water Protection Ordinance section 17- A SEDIMENT FILTER LOCATED AT THE INLET TO STORM SEWER CULVERTS WHICH PREVENTS �e F__I
Total Lbs. 207B) SEDIMEN T FROM EN TERING, A CCUMULA TING IN AND BEING TRANSFERRED 8 Y THE CUL VER T I T SOIL DESCRIPTION = 0
Per Acre below 4.2 3 tom per acre LU (D LLJ
Minimum Care Law ALSO PROVIDES EROSION CONTROL AT CULVERTS DURING THE PHASE OF A PROJECT WHERE 27B -ELIOAK LOAM-2% TO 77 SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON �__
4.2 to 5.2 2 tons per acre ELEVAT70NS AND DRAINAGE PATTERNS ARE CHANGING, CAUSING ORIGINAL CONTROL MEASURES HILLSLOPES SLOPES. MODERATE RUNOFF, WITH MODERATELY HIGH TO HIGH PERMEABILITY. III U)
- Commercial or Residential 175-200 lbs. 5.2 to 6 1 too per acre TEMPORARY SEEDING. TO BE INEFFECTIVE. TD LU 06
- Kentucky 31 or Turf -Type Tall Fescue 95-100% ALL DENUDED AREAS WHICH MLL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED SAFETY FENCE. U)
- Improved Perennial Ryegrass 0-5% TaLE "I-B WITH FAST GERMINA77NG TEMPORARY VEGETAT70N IMMEDIATELY FOLLOWNG GRADING. SELECT70N OF THE A PR07EC77VE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL 27C -ELIOAK LOAM-71w. TO 151w. SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ON Ul - = Z
- Kentucky Bluegrass 0-5% ACCEPT"M WMPOR,UUV SEEDIW � MMTERU" SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR AND WLL BE APPLIED TO DISTURBED AIRES THAT MEASURE. HILLSLOPES SLOPES. MODERATE RUNOFF, MTH MODERATELY HIGH TO HIGH PERMEABILITY. I— 0
High -Maintenance Lawn 200-250 lbs. -QUICK MFIMNCE FOR Au, RWIONIP WLL NOT BE BROUGHT TO FINAL GRADE W THIN 30 DAYS. LU Z F-4
LU
R.� B PERMANENT STABILIZATION. 39D - HAZEL LOAM-157 TO 25X SLOPES. THESE SHALLOW EXCESSIVELY DRAINED SOILS ARE rl� < V)
]%.� ��. S.d� r1bid,n) PLANTS SHOULD BE SELECTED APPROPRIATE TO THE SEASON AND SITE COND177ONS FROM TABLES J.J1 Z
- Kentucky 31 or Turf-Typc Tall Fescue 100% S,1. I - ftb. 15 50/50 Mk a AND J.31C. N07E THAT TABLE J.JlB PRESENTS PLANTS WHICH CAN BE USED K1774OUT EXTENSIVE PERMANENT SEEDING WILL BE APPLIED TO ALL DISTURBED AREAS AS PER THE PERMANENT HILLSLOPES MODERATE RUNOFF, WITH MODERA TEL Y HIGH TO HIGH PERMEABILITY. F --- III 0
�M RM. EVALUATION OF SITE CONDITIONS, TABLE 3.31C PRESENTS MORE IN-DEPTH INFORMA77ON ON THE PLANT STABILIZATION OF THIS EROSION & SEDIMENT CONTROL NARRATIVE. IIIIIIIIIIIII ce
General Sl%& (3,1 or less) a,,aummw-fimmi MA 7ERIALS U) ci� LLJ
& so- 100 65B - FAIRWEW SANDY LOAM-2% TO 77 SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND
Ce�� (�t,) Rw TO CONTROL EROSION ON BARE SOIL SURFACES, PLANTS MUST BE ABLE TO GERMINATE AND GROW. AFTER CONSTRUCT70N IS COMPLETED, ALL DISTURBED AREAS OF THE SITE WILL BE LIMED, ON IN TERFL U VES. MODERA TE RUNOFF, M TH MODERA TEL Y HIGH TO HIGH PERMEA BILI TY .J I— 0
. Kentucky 31 Fescue 128 lbs. (&�� ��.)
. Red Top Grass 2 lbs. SEEDBED PREPARATION IS ESSENTIAL. FERTILIZED, AND SEEDED AS PER CURRENT VDOT STANDARDS. THIS SHALL CONSIST OF I—
- Seasonal Nurse Crop* 20 lbs. I& 16 - Ap� 30 �.� R". W-100 THE FOLLOWNG.- LU I—
150 lbs. OAtim muld-fton,m) AN EVALUATION SHOULD BE CONDUCTED TO DETERMINE IF LIME IS NECESSARY FOR TEMPORARY SEEDING. Top SOIL - 2- DEPTH STORYWATER RUN-OFF CONSIDERATIONS. 0� U
Low -Maintenance Slope (Steel2er than 3,1) TABLE 331A MAY BE USED TO DETERMINE THE ACTUAL NEED ALONG KITH SUGGESTED APPLICA T70N LIME - 2 TONSIACRE ()� II
Wy 1 -AM 31 G�,.a. Wla M RA TES: S TORM WA TER MA NA GEMEN T THE STORMWA TER RUNOFF FROM THIS PROJECT DRAINS TEMPORARILY TO
Murbikam) FERTILIZER - 600 LBSIACRE OF 15-JO-15 THE SEDIMENT BASIN & TRAP THE SEDIMENT BASIN AND THE SEDIMENT TRAP WLL BE REMOVED AFTER J < >
- Kentucky 31 Fescue 108 lbs. FERTILIZER SHALL BE APPLIED AS 600 LBSIACRE OF 10-20-10 (14 LBS/1,000 SQ. FT.) OR EQUIVALENT SEED - ERNST 5J11 CONSERVATION SEED MIX - ERNMX-114 (45 LBSIACRE PENNLAWV THE DEVELOPMENT OF THE WCTORIAN HEIGHTS PROJECT
- Red Top Grass 2 lbs. GENERAL SLOPE (3� I OR LESS) TOTAL LES PER ACRE
KENTUCKY 31 FESCUE 128 LBS NUTRIENTS. LIME AND FERTILIZER SHALL BE INCORPORATED INTO THE TOP 2 TO 4 INCHES OF THE SOIL CREEPING RED FESCUE, J7.5 LBSIACRE ARGILE KENTUCKY BLUEGRASS, 375 LBSIACRE 0
- Seasonal Nurse Crop* 20 lbs. RED TOP GRASS 2 LBS IF POSSIBLE. PARK KENTUCKY BLUEGRASS, 15 LBSIACRE ANNUAL RYEGRASS & 15 LBSIACRE PLEASURE C-D
- Crownvetch ** 20 lbs. SEASONAL NURSE CROP 20 LES PERENNIAL AFTER THESE AREAS ARE STABILIZED THEY WLL BE MOWED AND MAINTAINED C:)
150 lbs. 150 LBS IF THE AREA HAS BEEN RECENTLY LOOSENED OR DISTURBED, NO FURTHER ROUGHENING IS REQUIRED. ON A REGULAR BASIS. ov�_ (N
* Use seasonal nurse crop in accordance with seeding dates as stated below: SEASONAL NURSE CROP WHEN THE AREA IS COMPACTED, CRUSTED, OR HARDENED, THE SOIL SHALL BE LOOSENED BY DISCING
FE13RUARY 16 THROUGH APRIL ANNUAL RYE RAKING, HARROWNG, OR OTHER ACCEPTABLE MEANS. TRACKING KITH BULLDOZER CLEATS IS MOST MA IN TENA N
February 16th through April ...................... Annual Rye MAY I THROUGH AUGUST 15 FOXTAIL MILLET EFFECTIVE ON SANDY SOILS. THIS PRACTICE OFTEN CAUSES UNDUE COMPACT70N OF THE SOIL SURFACE, IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY
May 1st through August 15th ..................... Foxtail Millet AUGUST 16 THROUGH OCTOBER ANNUAL RYE ESPECIALLY IN CLAYEY SOILS, AND DOES NOT AID PLANT GROWTH AS EFFEC77VELY AS OTHER METHODS AND AFTER EACH SIGNIFICANT RAINFALL. SPECIFIC ATTENT70N WILL BE GIVEN TO THE U
August 16th through October ...................... Annual Rye NOVEMBER THROUGH FEBRUARY 15 WINTER RYE OF SURFACE ROUGHENING.
November through February 15th ................... Winter Rye FOLLOWNG ITEMS.- I -
NOTES: SEED SHALL BE EVENLY APPLIED WITH A BROADCAST SEEDER, DRILL, CUL77PACKER SEEDER OR A. SEDIMENT BASINS ANDIOR TRAPS WLL BE CLEANED AND MAINTAINED IN U
W F_
" Substitute Sericea lespedeza for Crownvetch east of Farmville, Va. (May 1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL HYDROSEEDER. SMALL GRAINS SHALL BE PLANTED NO MORE THAN 11 INCHES DEEP. SMALL SEEDS SUCH ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK. � Lu
0 U-1
through September use hulled Sericea, all other periods, use unhulled Sericea). TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32. AS KENTUCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN 4 INCH DEEP. 07HER GRASSES AND B. ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT Cr_1 M
If Flatpea is used in lieu of Crowrivetch, increase rate to 30 lbs./acre. All legume KILL PREVENT PROPER DRAINAGE IF THE GRAVEL IS CLOGGED BY SEDIMENT, THE � I U, I
seed must be properly inoculated. Weeping Lovegrass may be added to any si 2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION LEGUMES SHOULD BE PLANTED FROM 4 INCH TO J DEEP. GRAVEL WILL BE REMOVED AND CLEANED, OR IT WLL BE REPLACED. JOB NO.
ope OF SEED APPLICATION, IN ACCORDANCE W/ VESCH STID 3.35.
or low -maintenance mix during warmer seeding periods; add 10-20 lbs./acre in SEEDINGS MADE IN FALL FOR WNTER COVER AND DURING HOT AND DRY SUMMER MONTHS SHALL BE C. ALL SILT FENCE BARRIERS WLL BE CHECKED REGULARLY FOR UNDERMINING OR 202196
mixes. MULCHED ACCORDING TO MULCHING, SID. & SPEC. J.35, EXCEPT THAT HYDROMULCHES (FIBER MULCH) DETERIORATION OF THE FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE
I PERMANENT SEEDING SCHEDULE (�� WLL NOT BE CONSIDERED ADEQUATE. S7RA W MULCH SHOULD BE USED DURING THESE PERIODS. REMOVED WHEN THE LEVEL OF SEDIMENT DEPOSIT70N REACHED HALF WAY TO THE SCALE
NO SCALE TOP OF THE BARRIER AS NOTED
AREAS WHICH FAIL TO ESTABLISH VEGETATIVE COVER ADEQUATE TO PREVENT RILL EROSION WLL BE D. ALL SEEDED AREAS MLL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS
(STD. & SPEC. 3.32 OF VIRGINIA EROSION & RE -SEEDED AS SOON AS SUCH AREAS ARE IDENTIFIED. MAINTAINED. AREAS SHOULD BE FERTILIZED AND RESEEDED AS NEEDED. SHEET NO.
SEDIMENT CONTROL HANDBOOK, 3RD ED.) @_ 3
Paved construction entrance for crusion control plans 1992 3.05 1992 3.05 1992 3.07 TH 0
1992 3.17
STONE 70' WIN. - CONSTRUCTION OF A SILT FENCE CONSTRUCTION OF A SILT FENCE CRAVEL CURB INLET SEDIMENT
CONSTRUCTION (WITH WIRE SUPPORT) (WITHOUT WIRE SUPPORT)
AC" 3 " SM-2A ASPHALT TOP FILTER STONE -LINED WATERWAYS SCOTT R. LINS
COURSE 1. SET POSTS AND EXCAVATE A VXe 2. STAPLE WIRE FENCING TO THE POSTS. 1. SET THE STAKES. 2. EXCAVATE A 47X 47 TRENCH C)
2% EXISTING TRENCH UPSLOPE ALONG ME UNE UPSLOPE ALONG THE LINE OF U No. 35791
PAVEMENT OF POSTS. STAKES,
6'MAX. 11/2122
6' M IN 2 !A AGGREGATE BASE 4-12" z
PROFILx__ - ----------------------------------- ------------- ----------------- z
z
r LJ
Jill U0
S ,E 70' FLOW z
��(, ? 41 1 Nil" ON ASPHALT PIAVTD
AC,-F--
WASHRACK 0
F-0 T KEY IN FILTER
111' FILTER CLOTH CLOTH W-9"
EXISTING 3. STAPLE FILTER MATERIAL 4. BACKFILL AND COMPACT
2% 2% FLOW TO STAKES AND EXTEND THE EXCAVATED SOIL.
PAVEUIENTJ
- IT INTO THE TRENCH.
2% 12' WIN.- - 47 V-SHAPED WATERWAY WITH STONE CENTER DRAIN
GRAVEL FILTER NOTE: A GRANULAR FILTER MAY BE SUBSTITUTED FOR FILTER CLOTH. LF) 0
F-
17-- 3. ATTACH THE FILTER FA RI TO THE WIRE 4. BACKRUL AND COMPACT ME RUNOFF WATER WIRE MESH z
,POSITIVE DUNAGE FENCE AND EXTEND IT INTO THE TRENCH. EXCAVATED SOIL. Lu
FILTERED WATER Z
-VUST EMNID FULL WIDTH A TO SEDIMENT x
OF INCRESS AW ECREsb TRAPPING DEMCF 0
OPERATON L W U
CL
2/3 W U)
4 IZ' x
IP-------- -- ------ --- - ----- U)
-12, MIN ITIVIE DRAJNAG[ Jill 0 n 47
-Wjjjjj== 0 k: W 0 -
SHEET FLOW INSTALLATION SEDIMEN U
TO SEDIMENT �IIIR�ffIIjjjjI =ffl
117041, (PERSPECTIVE VIEW) MTT�
PPHNIG DEVICE "'100" 1�1 11111-PFPTT
W <
C� CONCRETE GUTTER U
21441pp_ Ln
FLOW CURB INLET IM04 W < <
FILTER CLOTH
FILTER I Till A A CLOTH 6"-Gr
SECTION A -A 11 6 z z 0
1 0 >_
,owt
EXTENSION OF FABRIC AND WIRE INTO THE TRENCH. SPECIFIC APPLICATION
V)
> > Uri
A nunnioun Niialci la? ot I sit h inwl tic uiA.Acd %vilh a nuluinual I lach balLock PARABOLIC WATERWAY WITH STONE CENTER DRAIN W > LU
4int oft %ah oc �upl ityllist a waKli lto�c uillia thand ti of I laithc�toiadeqlule FILTER FABRIC THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS Uj z
WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LJKELY TO CAUSE NOTE: A GRANULAR FILTER MAY BE SUBSTITUTED FOR FILTER CLOTH.
LOILA2111pies,niv WaKliwalei 111111.13 be L3IIIe(I.1%%3% hoin The elift."Iteto all INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED 0
POINTS A SHOULD BE HIGHER THAN POINT B. AREAS. 11.
WIRE 0 0
ealerna Aloom ch aws. (litches ot wateicomses DRAINAGEWAY INSTALLATION Lu 0
(FRONT ELEVATION) GRAVEL SHALL BE V]DOT #3, #357 OR 5 COARSE AGGREGATE.
PAVED WASH RACK Source: Adapted from Installation of traw and Fabric Filter
Source: Adapted from Installation Of Straw and Fabric Filter M
Barriers for Sediment Control Sherwood and Wyant Barriers for Sediment Control, Sherwood and Wyant Plate 3.05-2
1 Plate 3.05-1 Source: Va. DSWC Plate 3.07-6 Source: USDA-SCS Plate 3.17-2
1992 3.08 1992 3.18 1992 3.36 1992 3.38
FENCINC AND ARMORING
SILT FENCE CULVERT INLET PIPE OUTLET CONDITIONS TYPICAL ORIENTATION OF
A A TREA TMENT 1 0
PROTECTION 0
EN� (SOIL STABILIZATION BLANKET) CUT/FILL QUANTITIES: 0
cli
T W r-j
3d, SHALLOW
SLOPE !�E 00
VOLUME OF CUT FOR LIMITS OF DISTURBANCE: S,000 CU. YARD E
--------- ------------ �] ----------------- ---- VOLUME OF FILL FOR LIMITS OF DISTURBANCE: 42,000 CU. YARD
T ON SHAL SLOPES. STRIPS OF
tPIPE OUTLET TO FIAT NETTING PROTEME COVERINGS DRIP LINE NET VOLUME OF FILL FOR LIMITS OF DISTURBANCE: 37,000 CU. YARD 0
TOE OF FILL -.1*_ CULVERT 10 AREA WITH NO DEFINED My BE APPLIED OCROSS
CHANNEL THE SLOPE.
6" OF TOPSOIL SHALL BE HAULED OFFSITE TO A PERMITTED (SWPPP) SITE
BERM SNOW FENCE AS EXPLAINED IN EACH PHASE NARRATIVE AND REITERATED HERE, PERMANENT OR .0
D
WHERE THERE IS A BERM AT THE TOP OF THE SLOPE, TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS
BRING THE MATERIAL �R THE BERM A4D ANCHOR IT AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE.
0 x BEHIND THE BERM.
00 >
-------------- d 0
0
STEEP so STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE �q
I co
OF FILL SECTION A -A FILTER CLOTH KEY IN T-!F; RECOMMENDED FOR ENTIRE PERIMETER SLOPE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 3o DAYS. 0
Will so (yi
BOARD FENCE am ONE!! 00 0
SILIFENCET ON SLOPM APPLY ON PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR 0
DISTANCE IS IF MINIMUM IF FLOW A PROTECTIVE COVERING PARALLEL CORD FENCE 0
TO THE DIRECTION OF FLOW I
IS TOWARD EMBANKMENT MORE THAN ONE YEAR.
AqD ANCHOR SECURELY.
L FLOW A 3d, (MIN.) <
PLASTIC FENCE _j
CORRECT METHODS OF TREE FENCING
0 ------------- 1, 1
OPTIONAL STONE COMBINATION PIPE OUTLET TO WELL CN
DEFINED CHANNEL
BRING MATERIAL DOWN TO A LEVEL AREA BEFORE
I.V PLAN VIEW TERMINATING ME INSTALLATION. TURN THE END N
UNDER e AND STAPLEAT it INTERVALS. ri
L. , U-11
<
FLOW 0 DITCH FLOW
>
51 d IN DITCHES, APPLY PROTECTIVE COVERING
PARALLEL TO ME DIRECION OF FLOW. UJI
USE CHECK SUCTS AS REQUIRED. ROOD
JOINING MATERIAL N ME CENTER OF 0 1
Uj
THE DITCH IF AT ALi_ POSSIBLE. _j U-11
SECTION A -A FILTER CLOTH KEY IN W-ST IDECOMMENDED FOR iRE PERIMETER
NOTES: 1. AFRON LINING MAY BE RIPRAP, GROUTED RIPRAP. GABION pop _j
CLASS I RIPII&P BASKET, OR CONCRETE.
VIDOT 13, #357 OR #5 COARSE AGGREGATE 2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED 0114 CORRECT TRUNK ARIVIORING 0
TO REPLACE SILT FENCE IN ' HORSESHOE " WHEN USING PLATES 3.18-3 AND 3.18-C 00 00 c� C
HIGH VELOCITY OF FLOW IS EXPECTED 3. d = 1.5 TIMES THE MAXIMU11 STONE DUUMETER. BUT NOT CO
LESS THAN 6 INCHES. TRIANGULAR BOARD FENCE <
LU
Source: Adapted from V]DOT Standard 0
Sheets and Va. DSWC Plate 3.08-1 Source: Va. DSWC Plate 3.18-1 Source: Va. DSWC 0
Source: Adapted from Ludlow Products Brochure Plate 3.36-1 Plate 3.38-2 U
0
_j
1992
3.01 1992 3.07 IT 1992 3.14
TEMPORARY D VILL."RSION DIKE <
0
LU
SAFETY FENCE SILT FENCE DROP INLET EXAMPLE PLAN VIEWS OF
PROTECTION BAFFLE LOCATIONS IN 0
2 X 4- WOOD FRAME LU
DROP INLET Compacted Soil SEDIMENT BASINS LU
gig WITH GRATE
oil T E
won a T 16' min. 1--1 C6
FRAME NO SCALE
1.51 MAX
Now mom . ..... 0
Now -Flow INFLOW LU
.... Ul 0
1111IM'', 1"i'll N' 1,1111 RISER
I I I I I I LE I I I I I W1 I I I I I Lo I I I I I WEI I I I I I E-M I I I I I W1 I I I I 161111111 N5 D/2 LU
3 MIN. z
0
L TOTAL DISTANCE MOM z
4.5' min. NORMAL POOL THE MINT OF INFLOW 0
AROUND ME BAFFLE TO LU
GATHER Q� <
THE RISER.
U1
EXCESS
AT CORNERS LU
U) cl� _J
NORMAL POOL
0/2 L
PERSPECTIVE VIEWS RISER 0
D
FFILE innons! UJI
STAKE
0
PERSPECTIVE VIEW
innons! <
NORMAL POOL RISER INFLOW
(0
(0
0 ov�_ 0
BAFFLE 17�4
D
ELEVATION OF STAKE AND D/2
V
FABRIC ORIENTATION DETAIL A
L - Li + L 2 E
U
SPECIFIC APPLICATION
11r EXTERIOR IF LU
SHEETS OF 4- X IF X
PLYWOOD OR EOURIALENT 0
THIS METHOD OF INLET PROTECTION IS APPUCA13LE WHERE THE RISER CREST 0_EMAnON
INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER I U,
S' MIN. THAN 5%) WHERE THE INLE7 SHEET OR OVERLAND FLOWS (NO- JOB NO
EXCEEDING I C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT 4'
STS MIN. SEE 4' SQUARE 202196 0
PERSPECTIVE VIEW PERSPECTIVE VIEW APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS OR 5- ROUND. SET AT
IN STREET OR HIGHWAY MEDIANS. U 3- INTO ME GROUND.
PLASTIC FENCE METAL FENCE SCALE 0
AS NOTED -0
Source: Adapted from Conwed Plastics and Plate 3.01-1 Source: N.C. Erosion and Sediment Control I
VDROT Road and Bridge Standar Planning and Design Manual, 1988 Plate 3.07-1 Source: USDA-SCS Plate 3.14-6 SHEET NO.
4
ERosloN coNTRa WRGINIA EROSION & SEDIMENT CONTROL
HANDBOOK SPECIFICA77ON NUMBER
GRAPHIC SCALE
*
_0 ------ 0-
SAFETY FENCE
J.01
30 0 15 30 60
120
CONSTRUCTION ENTRANCE
J. 02
010-
CONSTRUCTION ROAD STABILIZAT70N
J. OJ
IN FEET
1 inch - 30 ft.
SILT FENCE
J. 05
/
(D
STORM DRAIN INLET PROTEC77ON
J.07
NOTE: MEASURES INTENDED TO TRAP
SEDIMENT SHALL BE CONSTRUCTED AS A FIRST
NOTE: SLOPES GREATER' THAN 3:1 SHALL BE
PLANTED WITH NATIVE tTEEP SLOPE MIX WITH
STEP WITH ANY LAND DISTURBANCE ACTIVITY
ANNUAL RYEGRASS BY RNST CONSERVATION
AND SHALL BE MADE FUNCTIONAL BEFORE
SEEDSAT A RATE OF 6� LBS. PER ACRE, OR i LB
liment Basin #1 Design
ige area (acres)
,volumes: (using 2' contour intervals)
elevation (ft)
contour area (so
516.00
131.0
518.00
865.0
520.00
2005.0
522.00
3343.0
524.00
4807.0
526.00
6380.0
H
Sediment Trap design #1
IIHN. I: WWITSHPOILULTWAY CREST�OFt
0
2
3.65
drainage area (acres) (< 3 ac) 1�51 1 1 VARIARILE
DESIGN HIGH WATER
VORM ELEV.) _L
i
trap volumes: CREST OF STONE WEIR
volume (cy) MY
-------- - - --- -
elevation (ft) area (so volume(co volume(cy) GROOM
"6
SCOTT R. LINS
0
496 1049 0 0.0
0
III CRMT
33
U No. 35791 11,
DONATERING
498 1989 2,988 110.7 DRYSTORAGE
. .... .. ...
136 ..... .....
500 3059 7,998 296.2
11/21/22
332
0 0 0 0.0
632
0 0 0 0.0 WETSTORAGE
IOINVAL FO)
S MENT C� POINT
1045 NET. � REWCED
�Uuvxri
TO 34 C.Y./ ACRE)
FIILT�R CLOTH ORQN�L
�HO
ELIN,
CULVERT INLET PRO TEC 77ON 3.08 UPSLOPE LAND DISTURBANCE TAKES PLACE. PER i000 SF, UNLESS PECIFIED OTHERWISE. wet storage: -SEE PLATE 3.13-1 C� ACCEI C�S I RII
0 U wet storage: wet storage required (cy) (67*DA) 101.2
TEMPORARY DIVERSION DIKE 3.09 Sediment Trap design #2 wet storage required (cy) (67*DA) 245 design high water (ft) 524.00 bottom of stone weir (ft) 497.83
& 1 1.1 dewatering orifice elevation (ft) 621.2 top of dam (ft) 526.00 wet storage provided at this elevation (cy) 101.2
TEMPORARY ROW DIVERSION J.11 drainage area (acres) I(< 3 ac) 0.20 i ! wet storage provided at this elevation (cy) 245 top width of dam (ft) 10.0 slope of wet storage sides 2:1
trap volumes: CREST OF STONE WEIR weir length (ft) (6xDA) 9.1
ORIG� available volume before cleanout (cy) (min. 34*DA) 124 bottom of basin (ft) 516.00
elevation (ft) area (so volume(co volume(cy) GROUND cleanout elevation (ft) 619.7 approx. bottom dimensions: 52'X6 dry storage: bottom of trap elevation (ft) 496
SEDIMENT TRAP J. ij 514 76 0 0.0 distance from cleanout to orifice (ft) I(> 111 1.50 upstream face slope: 2:1 dry storage required (cy) (67*DA) 101.2 bottom trap dimensions: 10`X91
downstream face slope: 2:1
516 324 371 13.8 DRY 5 TORAUE crest of stone weir 499.0 top of dam elevation (ft) 500
SEDIMENT BASIN .3.14 518 700 1,371 50.8 dry storage: dry storage provided at this elevation (cy) 101.2 top width of dam (ft) 10,
dry storage required (cy) (67*DA) 245 baffles: YES slope of dry storage sides 2:1 top trap dimensions 27X1 15'
0 0 0 0.0 principle spillway crest (ft) 523.0 length of flow, L (ft) 20
0 0 0 0.0 WET STORAGE
OUTLET PROTEC77ON 3.18 dry storage provided at this elevation (cy) 245 effective width, We (ft) 203
MCIN�L diameter of dewatering orifice (in) 4.0 L I We (baffles not required if > 2) 0.10
FILTER CLOTH �ND diameter of flexible tubing (in) (orifice+2") 6.0 X\
ELCV. Z
RR RIPRAP 3.19 Z 0
wet storage: -SEE PLAW 3,13-1 COWISE AGGREGATE- C�S I RPRAP collars: YES
IS TEMPORARY SEEDING J.ji wet storage required (cy) (67*DA) 13.4 runoff. dept water at spillway crest (ft) 7.0
'E -(Use 0.45 for bare earth) 0-45 slope of upstream face (Zl) 21
bottom of stone weir (ft) 515.95 U
wet storage provided at this elevation (cy) 13.4 tic (min) 14 slope of barrel (Sb) 9.75% LEI
PERMANENT SEEDING slope of wet storage sides 2:1 Lu
J. J2 I 2yr 3.6 Q 2yr 5.9 length of barrel in saturated zone (Ls) 68.88 0
Z
weir length (ft) (6xDA) 5.0 1 25yr 5.3 Q 25yr 9.6 number collars required 2 0
dimension of collars Lr)
3.41
MULCHING J. J5 dry storage: bottom of trap elevation (ft) 514 principle spillway: 5:
TREE PROTECTION dry storage required (cy) (67*DA) 13.4 bottom trap dimensions: 4X1 9' available head (ft) 1.00 emergency spillway: NO Ci
3.38 crest of stone weir 517.0 top of dam elevation (ft) 518 diameter riser (in) 24 required capacity (Q25-Qp) (cfs) 0.0 Uj
dry storage provided at this elevation (cy) 13.4 top width of dam (ft) 6' spillway capacity, Op (cfs) 13.00 bottom width (ft) N/A
DUST CONTROL 3.39 slope of dry storage sides 2:1 top trap dimensions 20X35' diameter trash rack (in) 36 slope of exist channel (ft/ft)
barrel length (ft) 20.5 minimum length of exit channel (ft)
SOIL STABILIZAT70N BLANKET 3.36 head on barrel through embankment (ft) 10.00 crest of spillway (ft)
diameter of barrel (in) 15
PROPOSED TEMPORARY \N00DBURN LANE
STOCKPILE SURROUNDED
BY SILT FENCE CONTRACTOR STAGING AREA STATE V�DUTE 659
WITH FUELING TANK, DUMPSTER, 40' R/W
AND PORTA-POTTIES
CH
M
- - - - - - - - - - - - - wm solo SF
I - i i Z 1_�
1 8" R
7
7ut - - C - - - - - - i6a w/WIRE
as
- �2_26
SUPPORT NOTE: SILT FENCE, SAFETY
FENCE, AND TREE PROTECTION
Z vvP% In M�%_ SHALL BE INSTALLED AT LIMITS,
---------------- so OF DISTURBANCE. THSE ARE
OL "It Olt wnw�w oil- ml� W WM111111 /�OFFSET FOR GRAPHICAL
M mug== MU
�PURPOSES. DRAINAGE DIVIDES -
ARE IVIIEA51LIREIDATTHE LIMITS
MIN' Z 0
OF DISTURBANCE OR
FLOW DIRECTION E 22�X70
T_
-Y\ -�DIVERSION DIKE.
ARROW (TYP NOTE: THIS CONSTRUCf ION ENf/RANCE S L
-3 INSTALLED, OPERATED, AND MAINTAINED BY
NOTE: CONTRACTO-R T
0 ------- - L -- ------------ L CONSTRUCTION TRAFFIC IN THIS
- - - - - - - - - - - - - - - - CONTRAC PROPOSED LIMITS OF
ENSURE POSTIVE Z RWD TOR. AL
DID - - - - - - - - L ;UT I L I Z eET INSTRUCTION ENTRANCE.,- DISTURBANCE (TYP.)
DRAINAGE ALONG AREASHAL 7- cyi
DIVERSION DIKE --SOIL T' 0')
SOIL TYPE 65B DITCH ALONG C\l
DC J0 DIVERSION DIKE TO
BE LINED WITH
DRAINAGE DIVIDE (-fYP. JUTE
7
x x X�
TP�
CONCRETE WASH CN
C:)
:t I OUTAREA T �S, X x X
R/W DIVERSION TO
C\l
MU 1Z Z b
0.
<
1< x
PROPOSED LIMITS _��_R�f�D!�ER`SION AND DIVERSION [DIKE,
LU
OF DISTURBANCE (TYP.) I *MALL SEDIMENT TRAPPING IDE x x
11 I.S1 __/1 _j
FOR CONSTRUCTION ENTRANCE '10 �, 5 _j
S� I;r-
PE - - - - - - OIL TYP 5;
-SEDIMENT BASIN 2.44 ACRES TS
TP AREA TO P.) C/)
- - - - - - - --7* AKEAT
+ 1.22 ACRES OF OFFSITE UNDISTURBED to M 0 SEDIMffNTTRAP'�2.o5A6RES TY15t 27
x PROPOSED FENCE ARE� T 00 xSOIE' LU
AROUND SEDIMENT x_,� I - -
;00( � �\t4\10t_ -_�
BASIN, so = M M M - I :.. IV Ov LU
xll� x x ? 0
�-x
_j
OTE: CONT
.(x x X x x 00 001 VIP 7o FOOT LONG
x �x" Ax X X ,
4. x x X x
14�,Ul<lz FUSTIVE 4 FOOT HIGH IBMIFL_C:�
\x DRAINAGE ALONG FS'
x x SO,L'TYPf '2jC' :/' : \� . - 1� O-P
i x : : : X
I - - �,, 6011 4YPE12 7� DID
x X x x x �x x � 82FOOTLONG 7 UJILIK510-N DI C.)
SF x Z PROPOSED FENCE'.
x x X x X � SOIL YPE`\ 2 6 FOOT HIGH BAFFLES AROUND 5ii-IDINIE-14 I
�/
x\� 4 �C
0,
x TRAP UIP
w/WIR :x �\
X x
LUx X
SUPPORT'- x x x x x :x _4 �, - - - - - - - - - - CONTRACTOR TO
.�x : : \- . x ��x. F ---
x� -X x ENSURE POSTIVE 16
DRAINAGE ALONG
D
�011_ TYPE -DIVERSION DIK5 IP
TS
U)
Ul
-AREA TO SEDIMEN
TRAP = o 2o ACRES LU
LU
DITCH ALONG x
U)
DIVERSIONDIKETO STIR 4
BELINEDWITH
__7
JUTE
YFE 39D x X
'SOILTY LU
SAF X x
V W
>< x
20:W2
KAKY 15" CMP B L P
DC (20.5 LF @ 9.750/6, 11=516 <
_@�__ �- �- �. I ___ - I � j 0� (D
x x 10=514) THE CONNECTION Z
BETWEEN THE RISER AND THE C:>
5--b ------- ---- BARREL SHALL BE WATERTIGHT.
-BARREL SHALL CONNECT TO
----- PERMANENT (P) STIR 4 THRU th
up �R DRIVE -------
BERKMA PROPOSED TEMPORARY 24" CMP RISER RIM (P) STIR 1 DOGHOUSE MH IP-
------ ni E 1403 RISER TO INCLUDE A 1.11 INTO EXISTING STORM SYSTEM
r) STATE T%
---------- ------- T H R/W DEWATERING ORIFICE (INV ELEV.=521.20') & ':�i_STR 4 RIM=526 WILL BE LOWERED-
--------- --- VARIABLE WID
A TEMPORARY TRASHRACK & ANTI -VORTEX -TO FINAL GRADE IN PHASE IIIA
PROP SEDFENCE 15" RCP DEVICE. RISER SHALL BE FIRMLY ANCHORED - - - - - - / - - - - - - -
---AROUN SEDIMENT I - - - - --
TRAP�� - -TO PREVENT FLOATING. RISER TO BE SET IN - - - - - - -
- - - - - - - A MINIMUM OF 30" OF COMPACTED SOIL OR - - - - - - - - - - - - Diversion Dike Ditch Lining Calculations Job Number: 202196
AGGREGATE BASE OVER A 6 X6 X12
THICK GALVANIZED STEEL BASE PLATE, OR
SET 6" INTO A 6X6Xi8" THICK REINFORCED
- - - - - - - -CONCRETE FOUNDATION. NOTE, IF STEEL
BASE IS USED, SPECIAL
ATTENTION SHALL
BE GIVEN TO COMPACTION SO THAT 95% 1
COMPACTION IS ACHIEVED OVER THE PLATE;,
-4
L
mms-i
MmV=3,Ofps
EC2�MaxV=4.0fps
EC3TypeA,MaxV=7.0fps
Sta
From
Sta
To
T
(min)
C
Value
Area
I
CA
ccu
I
(iri
Q
(cfs)
Slope
(ft/ft)
Earth (ri
Jute(Sod) (ri
Vel.
Depth
DD left of ST2
ST2
1 5.0
1 0.45
0.12
0.05
5.6
0.30
0.1330
2.31fps
0.21 ft
DD right of ST I
STI
1 5.0
1 0.45
0.23
10.10
1 5.6
1 0.58
0.1250
2.67fpN
0.27 ft
STORM SEWER NErWORK
POINT
DOWNSTREAM
STRUCTURE
INVERT
ELEVATIONS
LENGTH
SLOPE
SIZE
PIPE
MATERIAL
RIM
ELEVATION
UPPER
LOWER
FEET
%
INCHES
4
3
510.28
509.56
120.76
0.60%
18
HEIPE
524.34
3
2
509.46
501.86
95.70
7.94%
18
HEIPE
514.00
1
1
1
1
1
1
1
1 1
2
1 1
1 499.15
1 495.50
1 45.56
1 8.00%
1 18
1 HDPE
1 505.36 4
LLI
Lr)
<
LU Z
<
_j
LU _j
0
2: 0� .
< I-_
a- Z
2: 0
U)
>
Z
LL]
LL]
LU 0
Z
L
<
< Z
-0
0 (j)
F__ 0
U Ql�
LL]
U
Lu
0
ILI)
JOB NO.
202196
SCALE
III =30 1
EET NO.
5
ERosloN coNTRa WRGINIA EROSION & SEDIMENT CONTROL
NOTE: SLOPES GREATER THAN 3:3. SHALL BE
HANDBOOK SPECIFICA 77ON NUMBER
PLANTED WITH NATIVE STEEP SLOPE MIX WITH
_0 ------ 0-
SAFETY FENCE
J.01
ANNUAL RYEGRASS BY ERNST CONSERVATION
SEEDS AT A RATE OF 6o LBS. PER ACRE, OR 1 LB
PER 3.,000 SF, UNLESS SPECIFIED OTHERWISE.
CONSTRUCTION ENTRANCE
J. 02
CONSTRUCTION ROAD STABILIZAT70N
J. OJ
NOTE: MEASURES INTENDED TO TRAP
SEDIMENT SHALL BE CONSTRUCTED AS A FIRST
STEP WITH ANY LAND DISTURBANCE ACTIVITY 30 0
7y 7y
SILT FENCE
J. 05
AND SHALL BE MADE FUNCTIONAL BEFORE
G
STORM DRAIN INLET PROTEC77ON
J.07
UPSLOPE LAND DISTURBANCE TAKES PLACE.
NOTE: DRAINAGE DIVIDE SECTIONS GREATER
Sediment Trap design #3 TH 0
drainage area (acres) I(< 3 ac) 0.52
trap volumes: CREST OF STORE WEIR
elevation (ft) area (so volume(co volume(cy) CRIXIND C1_11
517 861 0 0.0 SCOTT R. LINS
518 1116 986 36.5 DRYSTORAGE V�. No. 35791 11,
519 1396 2,239 82.9 11/21/22
520 1701 3,785 140.2
WIE'TSTORZAGE IONAL
FILTER CLOTH MGINAL
GROUND
I inch 30 f L.
THAN 7% IN SLOPE SHALL BE STABILIZED WITH wet storage:
A STORMWATER CONVEYANCE CHANNEL IN -SEE �TE a13_1 C� AGGREQATE C�S I RIPRAP
CULVERT INLET PROTECT70N 3.08 wet storage required (cy) (67*DA) 34.8 V)
z
G ACCORDANCE WITH VESCH STANDARD 3.17 bottom of stone weir (ft) 518.00
wet storage provided at this elevation (cy) 36.5 0
------ ON- TEMPORARY DIVERSION DIKE 5.09 0
slope of wet storage sides 2:1 1
0
weir length (ft) (6xDA) 3.1
TEMPORARY ROW DIVERSION 3.11
dry storage: bottom of trap elevation (ft) 517
dry storage required Icy) (67*DA) 34.8 bottom trap dimensions: 19'x48' U)
SEDIMENT TRAP J. ii crest of stone weir 519.0 top of dam elevation (ft) 520 F-
z
dry storage provided at this elevation (cy) 46.4 top width of dam (ft) IF Lu
SEDIMENT BASIN 3.14 slope of dry storage sides 2 1 top trap dimensions 31'x6O' 0
U
U)
CL
OUTLET PROTECT70N 3.18 L�
x
X\
J 0 z
RIPRAP J. 19 0 D
0
U 0
<
TEMPORARY SEEDING J. 31 U z
V) < <
Lu
PERMANENT SEEDING 3.32 F
z 0
C) >_
> L-n
MULCHING J. J5
Lu 0
> Lu
TREE PROTECTION J. J8
DUST CONTROL J. 39 0
Lu
0
J. J6 CL
SOIL STABILIZA77ON BLANKET
M
NOTE COWT-R \N60DBUP**N LANE
_A&�F-To��N - - - -
j NSURE POSTIVE STATE ROUTE 659
E
W - 40' R/W
on _o, -DRAINAGE ALONG IP
DIV
ON DIK NOTE: SILT FENCE, SAFETY 0
WM
- - - - - - - - - - - - -
IP FENCE, AND TREE PROTECTION
- - - - - - --- �8711C SHALL BE INSTALLED AT LIMITS- r1j
- - - - - - A IP SF OF DISTURBANCE. THSE ARE ri
W_ IN I KAL. I OR STAGING ARE r1i
WITH FUELING TANK, DUMPSTER, FFSET FOR GRAPHICAL 00 E
1
W/WIR�
AND PORTA-POTTIES SUPPO E PURPOSES. DRAINAGE DIVIDES
ARE MEASURED ATTHE LIMITS
Iwo RT 0
---------------- 1.3'l'b OF DISTURBANCE OR
so SMO DIVERSION DIKE.
go III, /,
win also mill
IP C)- >
PROPOSED LIMITS OF
ASH RACK DISTURBANCE (TYP.)
QD _j
7 -------- O� MIN. 0) L:
--------------- St4ALLBE T_ 0
---------- WD NTRA1,_ w7 >
NOTE: CONTRACTOR TO 540 ----------------- --- ----- - - B'� 0
-------- Ul- W,�, 4D Zz 0
--- -------------------- ------ T VAIS C06ST R AINTN' DITCH ALONG
ENSURE POSTIVE (r -------- N.TKAI71 I M 0
�11\ ------------- No �Eo ANL) IVI ANCE.-
Oyt," � STRUL_ I TIIj%XL`_ DIVERSION DIKE TO,
_�-IDRAINAGE ALONG (1p) ss-1 N, t) I Rur /,�BE LINED WITH cyi 3:
ONTRAI-JUK CON 0
DIVERSION D)KE 542 0')
0 C 7 JUTE C11j
AREA LL]
-0/c �536-
Cy') U) >
IP <
7 PROPOSED TEMPORARY Z' AREA TO SEDIMENT TRAP O�2 ACRES
534 1�
- STOCKPILE SURROUNDED 'DRAINAGE DIVIDE (TYP.) 0
STORM INLETS TO REMAIN) I (N =
BY SILT FENCE
SH
CLOSED TO ALLOW OFFSITE ONCRET AS CD
,CLEAN WATER TO DIVERT 0')
THR OUT AREAX z
SITE TO EXISTING STORM ON DID C\l
LU
MU NOTE: CON'TRAC_ z
M U 5�16
BERKMAR DRIVE
- _�-532 �)u TOR To
- - - 24 ENSURE POSTIVE
if I < < 0
x �6X
4__
AREA TO SEDIMENT BASIN �.25 ACR C;,T- C
APFA Tn Sirni T BASIN 1 2r AC DRAINAGE ALONG > _j
PROPOSED LIMITS R/W DIVItK�AUN ANU LJIVI=K�AUIM L ITSION DIKE
_z-
OF DISTURBANCE (TYP.) TO SMALL SEDIMENT TRAPPING DE%. U LL]
0
FOR CONSTRUCTION ENTRANCE 3 _j -
_j LU
up
1 � 1 `6 SAm- 0
2S.3% 9 C/)
SAF - - - - - - - z, LU <
_529.0
0 F
DITCH FLOW DIRECTION 6-1 10? Z
ALONG ARROW( YP. LU
DIVERSION DIKE TO 10% 0
1 TS _j U)
BE LINED WITH
-��b �C DC
JUTE
MU 0
_A�� PROPOSED FENCE z
36 0/0, 41 >
AROUND SEDINIEN I U) Lu
0
SF 15% BASIN (T S
CIL6 (I P) 0
P
W/ WI LU
SUPPORT- >
1�532 0 cc
< 30
x x\x Lu E
-t-52b� x
LU 0
q24 IP U) 0
xx x x 5�2 z
1\ I I I - U1 ::)-
520 z
N
0. �zo ACRES - ---------- LU z
RAP z
- - - - - - - LU
RWD TS - - - - - - - 1_� z V)
#
PLEASE NOTE: SILT FENCE AND SAFETY FENCE TO U) 0� 0
4 0
��!�E INSTALLED AT BACK OF SIDEWALK TO BE 0
o6% 'FROM THE RETAINING WALL.
P
J
LU
IV.
1p
CE LU
12 X70'M IN. a
�Z_ - I �_ � - , - - ` /I/ j
WASH RACK >
RC? <
x x x x �6 (D
R/W DIVERSION AND x x x
C:>
DIVERSION DIKE ----- jRKMAR DRIVE
TO SMALL SEDIMENT ------- BI 1403 j
STATE ROUTE
TRAPPING DEVICE
T H R/W ------
:OR CONSTRUCTION - VARIABLE WID
Vi
ENTRANCE
E
- - - - - - - - - - - - - -
0
U
till VillillZill
__TEMP AR,�_ _�P PIPE 15" RCIP Lu
- - - - - - - - - - - - - - - - 0
-----.FOR CLEANWATER BYPAS - - - - - - - - - - - - - - - - - - - - - 0- Ln
0
wm
- - - - - - - - - - - - - - - - - N JOB NO.
98.3 LF @ 3.76%, 11=53.3-70
: - - - - - - - - - - - - - - - -
TO EXISTING CURB INLET- - - - - - - -
10=510.00 202196
- - - - - - - - - - - - -
- - - - - -- S7ALE
r 1 =30
0
'r SHEET NO.
6
_id
GRAPHIC SCALE
coN TRoL WRGINIA EROSION & SEDIMENT CONTROL
ERosloN HANDBOOK SPECIFICA77ON NUMBER Sediment Trap design #4
H u
2J
_0 ------ 0—
SAFETY FENCE J.01 UZZ
ZU 0z
drainage area (acres) I(< 3 ac) 0.11 z
trap v:Ilumes:
CREST OF STONE WEIR
J. 02 elevation (ft) area (sf) \Iolume(cf) %clume(cy) GROUND
CONSTRUCTION ENTRANCE -- ----- C"
491*� —I.
SCOTT R.. LINS��
524 36 0 0.0 CD
528 500 899 33.3 `6 11/21 22
7y 7y SILT FENCE J. 05
L -------- U No. 35791 11,
CONSTRUCTION ROAD STABILIZAT70N J. OJ -------
526 204 217 8.0 --------- L ----------------- -------- ------- ------- T
-------- ------- t
------- -------- ---- - -------
DRY STORAGE --------
0 0 0 0.0
24
0 0 0 0.0 WET�STO'RAGE IOINVA
4'
STORM DRAIN INLET PROTECT70N J.07
FLMR CIOTH\
z
G GIMINO
EL� 0
wet storage:
CULVERT INLET PRO TEC 77ON 3.08 -SEE �M 3.13-1 C� MGREGATE CIASS I RII V)
wet storage required (cy) (67*DA) 7.4
G bottom of stone weir (ft) 525.83
-010p- TEMPORARY DIVERSION DIKE J. 09 wet storage pro)Aded at this eleNation (cy) 7.4 0
slope of wet storage sides 2:1 S20 0
TEMPORARY ROW DIVERSION J. 11 weir length (ft) (6xDA) 0.7
dry storage:
bottom of trap elevation (ft) 524
jjF__jjj SEDIMENT TRAP J. 13 dry storage required (cy) (67*DA) 7.4 bottom trap dimensions: 4'1
U)
crest of stone weir 527.0 top of dam elemtion (ft) 528
z
Lu
SEDIMENT BASIN J. 14 dry storage proNAded at this elevation (cy) 7.4 top width of dam (ft) 6'
slope of dry storage sides 2:1 top trap dimensions 22')Q5' 0
Egg OUTLET PROTECT70N J. 18 5( CL
U)
U_
50\ABW V)
RIPRAP J. 19 NOTE: M EASU RES I NTENDED TO TRAP 52201w z
/NOTE: SLOPES C
8 — -/- _j / ,RE/ 0
SEDIMENT SHALL BE CONSTRUCTEP ASA FIRST kTER THA� 3:11SHALL BE 0
X PLANTED WITH NATIVE STEE SLOPEMIXWITH 516 ac 0
E
U
0
TEMPORARY SEEDING J1 STEP WITH ANY LAND DIST ITY
T V" ANNUAL RYEGRASS BY E"ST CONSERVATION
AND SHALL BE MADE FUNC )R� / / M U Z
SEEDSAT A RATE OF 150 LBS. PER ACRE, OR i LB Ln < < 3:
PERMANENT SEEDING J. J2 UPSLOPE LAND DISTURBANCE K��PLACE.- - - 13ERKMAR DRIVE
_PER�i000 SF, UNLESSISPECIFIED OTHERWISE. STATE ROUTE 1403
I : z
2 0
DT H R/\N C)
MULCHING J. J5 VARIABLE W1 0 -
--------------
> V) 3:
---------- UJ .0
Lu
TREE PROTECTION J. J8 ---------- - - - - - - - - - - Uj z
--- ---------
DUST CONTROL .3. J.9 0
-------- IP W;6E_R0S10flT SEDI M ENT CONTROL PLAN PHASE I I 1A Lu 0
---------- tE 0
L
SOIL STABILIZA77ON BLANKET J. 36
F A I E
GRAPHIC SCI M
0 0 15 3 60 120
NE
tOODBURN LAI
...............
IN FEET 'I ...............
E ROUTE 659
NOTE: DRAINAGE DIVIDE SECTIONS GREATER 1 inch 30 it. J_ STAT
CONTRACTOR STAGING AREA
THAN 2% IN SLMSHALL BE �TABILIZED WITH I 0001111111` 40' R/W
-WITH FUELING TANK DUMPSTER
0
NOTE: SILT FENCE, SAFETY
-A-_5TQWWA
_ TER.-CObIVEYANCE CHANNEL IN WM AND POI�TA-POTTIE� IP FENCE, AND TREE PROTECTION . . . . 0
A,C,QPRDANCE-VATH 4ESCH-STANDARD
Z' SHALL BE INSTALLED AT LIMITS
8" RC r1i C4
--------- 11 - SF OF DISTURBANCE. THSE ARE
UJ r1i
W ip FFSET FOR GRAPHICAL 00 E
w/WIOE PURPOSES. DRAINAGE DIVIDES
N T C NTRA OR 0 SUPPORT 0
ARE MEASURED AT THE LIMITS
---------- /A /EINSURE POSTIVE OF DISTURBANCE OR
D
1P
D�ERSIO I MDIKE
,,544--o
DRAINAGE DIVIDE (TYP.) ArDcc
7 MIN. A AREATOSEDIMENTTRAP=o-- 0) L:
12'x7O
S z w7 >
JTRANCES6LLBE 0
WASH RAC PROPOSED LIMITS OF 0
INSTALLED, OPERATED, AND MAINTAINED BYTHE
CONTRACTOR. ALL CONSTRUCTION TRAFFIC IN THIS PROPOSE D FENCE AR, DISTURBANCE 5.13 acres cyi 3:
22, SEDIMENTTRAP 0') 0
��—AR ASH LUTI I ETHI ONSTRUCTIONENTRAN E.
IP L - - - - - - C\1
< LU
>
5'WIDE TOP/ <1
/OFDAM 0
CD
A LIL.
OUTAREA
z z LU
S34.0 z z
0
< 0
<
PROPOSED LIMITS >
_j
OF DISTURBANCE 0 LU
=5.i3 acres RJW DIVERSION AND DIVERSI NDIKE ------- _j 0
---------- so
/TO SMALL SEDIMENT TRAPPING DEVICE ------- - _j LU _j
FOR CONSTRUCTION ENTRANCE -------
1, so 0
------ so SAF U) c
< 0
SAF 28— ------- LU
so 10
Z
PROPOSEDFENCE
LU
A
ROUND SEDIMENT - ---------- 0 0
---- -------- ------ 5020 so
BASIN _j
------- -------- on 'po U)
526- M 0� in
REATO SEDIMENT BASIN
3-14ACRES M
< >
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ATTHETIME OF TEMPORARY SEDIM Will <
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- - - - - - - - - - - 0
BASIN REMOVAL, THE CONTRACTOR Lu
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SHALL REMOVE THE TEMPORARY PIPE - - - - - - - - - - - - - - - 7 0
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CONNECTION INTO PERMANENT STRUCT
0- Ln
& COMPLETETHE INSTALLATION OFTHE JOB NO. 0
— — — — — — — — — — — — — — — — — — — — — — N
PERMANENT STORM SEWER. 202196
CONTRACTOR SHALL PLUG HOLE IN
EXISTING CURB INLET WATERTIGHT. SCALE
— — — — — — — — — —
r
r =30 0
— — — — — — SHEET NO.
- - - - - - - - - - 7
PRE -DEVELOPMENT SWM PLAN: -DEVELOPMENT SWM PLAN: PROPOSED STORMWATER MANAGEMENT NARRATIVE FOR THE PROJECT:
r TH 0
VA � L�' !'47
A\ POST OVERVIEW:
Via, wv SCALE i"=5o' SCALE 1"=50' t;
THE PROPOSED STORMWATER MANAGEMENT PLAN COMPLIESWITH PARTIIB I/
C�r� , 1\ ' / - - - V*T
N SUBAREA F REQUIREMENTS TO MITIGATE IMPACTS FROM THE PROPOSED IMPROVEMENTS. I
SUMMARIES OF THIS COMPLIANCE CAN BE VIEWED IN THIS VSMP SETAND IN THE llc�y
Tl4E_B/0LfNDXRY/FOR/tHE --494- Tl4E-B/0UNDXRY/FOR/tHE 49
0.08 ac. ACCOMPANYING STORMWATER MANAGEMENT CALCULATIONS PACKET. SCOTT R. LINS
MIT8 OF � I �� \ \ \ \ \�. � \ 1� �_�r
PIkOP6SED 0 PkOPbSED LIMIT3.5 OF CN=61 STORMWATER QUANTITY: r-) No. 35791
DIS�U1,RBKjINC/E V5.�l DIS�LII CURRENTLY ALL OF THE EXISTING IMPERVIOUS AND PERVIOUS AREAS WITHIN THE
IP �KjNCE (5.13 ac, %
USELD I Y Li� IN" tX1 I- % LIMITS OF PROJECT LIMITS EXITTHE PROPERTY UNTREATED AND SOME AREAS EXITTHE 11/21/22
t-,'-. I USEP Ty D�FINLJI I" (EX2) ANALYSIS FOR PROPERTY UNCAPTURED. THE PROPOSED PLAN WILL CHANGE THIS AND WILL
ORT V BOUNDARY FOR)7HE VRR
BOUNDARY FOR, tRM _M I SUBAREA F ALONG CAPTURETHE MAJORITYOFTHE PROPOSED IMPROVEMENTS. THECAPTUREAND
IIQLIOINVAL V- G%
/WATPR QUALITY /wATPA QUALITY- 1\ IL)UWNb, REAM EDGE DETENTION OFTHE MAJORITY OF THESE IMPROVEMENTS 15 REPRESENTED BY
TzV � '7\1�OF DRAINAGE AREA POST -DEVELOPMENT SUBAREA A, WHERE AN UNDERGROUND DETENTION SYSTEM
'5A LATf0N5;*P. '5A LATI`01IN5�TYP. ATTENUATES THE RUNOFF. CHANNEL PROTECTION IS MET VIA 9VAC25-870-66
�SH TFLOWPOWNSTREAM\OF \ \ #T'\' \ \ \ \ \ k \ \ \ V, '\ " \1 \ �\ SECTION B.3.A. FLOOD PROTECTION IS MET VIA 9VAC25-870-66 SECTION C.2.B.
\
LIMITS OP\ANALY\-.--)\ SUBAREAS D, E, F & H REPRESENT DRAINAGE AREAS THAT SHEETFLOW OFFSITE TO
0� V ----------- EXISTING STORM SEWER INLETS ALONG BERKMAR DRIVE. THEVOLUMES FROM
THESE AREAS ARE ANALYZED TO MAKE SURE AN INCREASE IN VOLUME DOES NOT
00,
W \151bc
ale IMPACT DOWNSTREAM AREAS VIA 9VAC25-870-66 SECTION D. SUBAREA HIS A
rg
I NEW ONSITE DRAINAGE AREA CREATED BY THE ENTRANCE TO THIS
DEVELOPMENT AND AS SUCH STORM SEWER COMPUTATIONS OF THE EXISTING
rs. ---
o'�X. I I PIPE RUNS EX4 TO EXI. ARE PROVIDED TO SHOW THAT THE 10 YEAR STORM IS
F F ULF wl EftV.5 z - - CONTAINED WITHIN THE EXISTING UNDERGROUND STORM SEWER SYSTEM. AS
`rC=C�23
�rs.
290' (jIF (_UN U)
F-
SHOWN IN THE CALCULATIONS PACKET, AT STRUCTURE EXI., THE CUMULATIVE
VOLUME OF SHEETFLOW IN THE PROPOSED CONDITION IS LESS THAN THE z
Lu
CUMULATIVE VOLUME OF SHEETFLOW IN THE EXISTING CONDITION, SO THE
ANALYSIS ENDS. PLEASE SEE SHEETS 12 & 13 FOR FULL DRAINAGE AREA
DELINEATION TO THESE INLETS. 0
U
CL
IT SHOULD BE NOTED SUBAREA 3 IN THE EXISTING CONDITION IS RUNOFF U)
u-
CAPTURED ALONG WOODBURN DRIVE AND ROUTED TO THE SITE VIA A 15" CMP
SUBAREA E ------ - ------- CULVERT. THE PROPOSED PLAN CAPTURES THIS DRAINAGE AND ROUTES IT
z
EETFLOW 'TODOWNSTREAM THROUGH THE SITE. AS THIS IS OFFSITE AND UNDISTURBED AREA, THE 0 0
IMPROVEMENT FACTOR FOR CHANNEL PROTECTION DOES NOT APPLY TO THIS
13� 0
0 INLET OUTSIDE LOD) A 3 "�Esml) AREA. THIS AREA IS ADDED TO BOTH THE EXISTING AND PROPOSED ONSITE U
SU # v 10-YEAR FLOWS FOR THE PURPOSES OF FLOOD PROTECTION. SEE SHEET 13 FOR <
0.98 ac. SUBAREA E 0 z
FULL DRAINAGE AREA DELINEATION. 1.4 U
CN=-59 - - - - - - -
<
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PLEASE SEETHEATTACHED STORMWATER MANAGEMENT CALCULATIONS PACKET 0
CN=61 FORADDITIONAL DETAILS PERTAINING TOTHE STORMWATER QUANTITY IM4 C)
U\. �\3 4�s
X
LIMITS OF COMPLIANCE.
>ANALYSIS FOR > V)
------- SUBAREA E ALONG STORMWATER QUALITY: LU W Lu
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SUBAREA G \1 \\\L)UVVINItIKtAM EDGE THE STORMWATER QUALITY REQUIREMENTS FOR THIS DEVELOPMENT ARE MET 13�
0 V REA� THROUGH THE BEST MANAGEMENT PRACTICE OF PURCHASING NUTRIENT 0
(DRAINAGEAR.EA-TO CREDITS. A MINIMUM PHOSPHOROUS REMOVAL RATE OF 5.56 lbs/yr IS
4( REQUIRED. THE DEVELOPER WILL PURCHASE NUTRIENT CREDITS PRIOR TO THE
DOyINISTREAMIROAD DITCH)
V _LI�MITS OF
LIMITS OF ISSUANCE OF A LAND DISTURBANCE PERMIT.
10. 16 ac. !�E
\4iiliiI �o ANALYSIS FOR ANALYSIS FOR PLEASE SEE THE ATTACHED CALCULATIONS PACKET AND THIS SHEET FOR
N 0\\\ THIS 5UPARI\A A,
CN=80- - 11 CL
UJ_VL;LOPMENT ADDITIONAL DETAILS.
Tc=0.��IhiS.
40or
------ AMENDMENT:
PROPOSED IMPERVIOUS AREA WITHIN THE LOD ARE REDUCED WITH THE
POKTIO/N OF SHEETrLO\W LAYOUT PROPOSED WITH THIS AMENDMENT. CN IS UNCHANGED FOR SUBAREA<
T 27�7 '*M)
2� OF OLE �d A IfLE+ IS INCLUDED IN LIMITS OF 'A' SO APPROVED ROUTINGS REMAIN ADEQUATE.
A
\00��26 F C`ON�. �Ldw r/ SUBAREA E DRAINAGE Tc=o.io hrs. ANALYSIS FOR
AREA ioo'OFOLFw/AELEV.=o.5' SUBAREAS H & D APPROVED:
)AREA E� � k I � \ - \,\\ , \ , ' , - - 16iOFCONC. FLOWW/AELEV.=2'
0 888'CHANNEL FLOW IN VII`t� �W b-35T115
- - - Post -Development Impervious Area Summary
�CN=\64' _<
40P AA -------
d LOD, Water Quality _< cli
iv h! Ticl--OAG hr�. ... ------ ------- W
4 52 ac Building 59,380 sf
>/ - - - - - 00
7W C Sidewalks & Concrete 12,090 sf
- - - - - - - ParkinLyAreas/Road 64 100 sf
135,570 sf
3
PROPOSED AMENDMENT:
I
1610 _<
OP7- J Post -Development Impervious Area Summary
LOD, Water Quality
Building 59,290 sf
Sidewalks & Concrete 12,723 sf
\SUBAREA EX
Parking Areas/Road 63,272 sf
(SHEETFL W TO DOWN& ------- 135,285 sf
cc t3 _<
J-0 FT 11-All ------ 4 _g
INLE�OU SIDE �LO16)71
ac -10 -4
U. A
q L_ M_ LU
Co APPROVED:
J60
/r 1 1 '�UBAREA D
----------- 0.26 ac. Post -Development Impervious Area Summary
4'�
Subarea A, Water Quantity
4%� CN=65
Building/Structure 59,380
//�7 Sidewalks/Concrete 10,890
LL
S1f1f
sf
Roads/Driveways 61,100 sf
LE 1 131,370 sf LL
_F_T_ 8
z PROPOSED AMENDMENT:
SUBAREAA' 8
g - ----- �7__El I z Post -Development Impervious Area Summary
/2.04 AC.
z z 6; r Subarea A, Water Quantity
> Building/Structure 59,290 sf
Ic 0�#1 h rs:--
f E:
'X ----- If
2 Sidewalks/Concrete 11,361 sf
/X
Roads/Driveways 59,834 sf
SUI133ECT SUI133ECT 0 130,485 sf
) I " 141 w ----
OP PROPE 8
PR � f
Tc5o.io�15_'�� ------------
Ty F 27 OF 0 A ELEV--,o So
E TYP.
494-bF'coNC. FLOW wTA ELEV.4j2' I
of
SUBAREA H
-79
J� 10, C!
CN=
- - ------- ------ Lij
0
4V Foi-
401
41 4�
0
LC
SUB A RF A J_TO EXISTING
SUBARFA J_T0 EXISTING
CULVERT 1.21-AC
17
CULVERT 1.22-AC
CN_:;67 TF CN,7_� TL�' T
#
T/C=12.6 M_1`N- TC=12.6 M_1N__
r 1�f I �
r
-OLF wl A ELEV.-i' I
Tc=,0.21 hrs. F Tc=0.21hrs. 1:/
54'OF 54'OF-OLFw
i OW W/ A I Post -Development Impervious Area Summary
/ A ELEV.-i'
69o'OF CO-N&FL 6qo'OFCONC-FL
,OW W/ A iiiiiiiiiiiiij
ELEV.=ig' j ELEV.=ig' Post -Development Impervious Area Summary General Construction notes for Stormwater Management Plans
Subarea H, Water Quantity J\ i. All dams and constructed fill to be within 95% of maximum dry
Subarea A, Water Quantity Building
density and 2% Of Optimum moisture content. All fill material to
be approved bya geotechnical engineer. Ageotechnical engineer
Building 59,380 sf Parking Areas/Roads 2,805 is to be present during construction of dams.
0 ]Ssffff
f iiiiiiiiiiiiiiiiiij
Pre -Development Impervious Area Summary Parking Areas/Roads 10,890 sf Sidewalks & Concrete 560 sf 2. Pipeand riserjointsareto be watertight within stormwater
sf Management facilities.
Subarea A, Water Quantity Sidewalks & Concrete 61,100 sf 3,365 sf 3. Fortemporary sediment traps or basins which areto beconverted
Building/Structure Pre -Development Impervious Area Summary Pre -Development Impervious Area Summary 131,370 sf to permanent stormwater management facilities; conversion is
0 sf Subarea J, Water Quantity nottotake place until the site isstabilized, and permission has
Sidewalks/Concrete 1,700 sf Subarea D, Water Quantity LOD, Water Quality Subarea D, Water Quantity been obtainedfromthe erosion control inspector.
Roads/Driveways 5,500 sf Building/Structure 0 sf Building/Structure 0 sf Building/Structure Building 0 sf
7,200 sf Sidewalks/Concrete 1,100 sf Sidewalks/Concrete 0 Isssff Parking Areas/Roads 300 sf
Sidewalks/Concrete 0 sf sf
Subarea B, Water Quantity Roads/Driveways 0 sf Roads/Driveways 9,800 sf Roads/Driveways 9,100 sf Sidewalks &Concrete 910 sf
�Building/Structure 0 Sf 1,100 sf 9,800 sf 9,100 sf 1,210 sf
Sidewalks/Concrete 0 Sf Subarea E, Water Quantity CHANNEL & FLOOD PROTECTION SUMMARY
Roads/Driveways 2,360 sf Building/Structure 0 sf
2,360 sf Sidewalks/Concrete 0 sf GRAPHIC SCALE
Subarea G, Water Quantity Roads/Driveways 1,000 sf
50 0 25 so 100 200
FBuilding 0 sf 1,000 sf I
u'
P p
arking Areas/Roads 3,420 sf I m m m m m m
r ir
S Si
ide'wAalks &Concrete 0 sf IN FEET
3,420 sf I inch - 50 ft.
Pre-Dev. Post-Dev. Method of 9VAC25-870-66 Method of 9VAC25-870-66 Method of 9VAC25-870-66
Subarea Subarea Channel Protection Compliance Limits of Analysis for Channel Protection Flood Protection Compliance
Method of 9VAC25-870-66
Limits of Analysis for Flood Protection
G
I A
IS ction B.3.a (Energy Balance)
N/A (Energy Balance Satisified)
Section C.2.b (10-yr. Post Flow < Pre Flow)
N/A (10-yr. Post Flow < Pre Flow Satisified)
�B
DEC'F
D, E, F
ISection D (Sheetflo ...
IN/A (No Increase in Volumes)
ISection D (Sheetflow)
IN/A (No Increase in Volumes)
I H
ISection D (Sheetflow)
IN/A (Flow is captured in Concrete Pipe)
ISection D (Sheetflow)
jPipe Runs EX2to EX1 (10yr contained within Pipe)
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JOB NO.
202196
SCALE
1 11 = Sol
SHEET NO.
8
FACILITY R�SPECTIONS DURING CONSTRUCTION:
CONSTRUCTION INSPECTIONS ARE CRITICAL TO ENSURE THE UNDERGROUND DETENTION SYSTEM IS PROPERLY
BUILT. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY THE CONTRACTOR, THE CONTRACTOR
SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER, COUNTY INSPECTOR AND CONTECH
REPRESENTATIVE PRIOR TO INSTALLATION. CONTECH, OR AN EQUIVALENT PIPE MANUFACTURER, SHALL BE
CONTACTED WELL AHEAD OF THE CONSTRUCTION START DATE TO ENSURE ADEQUATE LEAD TIME FOR
MATERIALS AND DELIVERY. MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE
CONTRACTOR, WITH THE ENGINEER, COUNTY INSPECTOR & PIPE MANUFACTURER, DURING THE FOLLOWING
STAGES OF THE UNDERGROUND DETENTION SYSTEM CONSTRUCTION PROCESS:
i. PRE -CONSTRUCTION MEETING
2. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS)
3. EXCAVATION/GRADING (E.G., INTERIM/FINAL ELEVATIONS).
4. WHEN THE DETENTION PIPE SUBGRADE IS READY FOR PIPE CONSTRUCTION, BUT BEFORE STONE BEDDING IS
INSTALLED.
5. AFTER STONE BEDDING IS PLACED AND COMPACTED, BUT PRIOR TO PIPE INSTALLATION.
6. AT THE TIME OF THE PIPE INSTALLATION.
7. AFTER PIPE INSTALLATION, BUT PRIOR TO PLACING FILL OVER THE SYSTEM.
8. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE)
PLEASE ALSO SEE BELOW, UNDER FACILITY MAINTENANCE, FOR REQUIRED INSPECTIONS AFTER INSTALLATION
IS COMPLETE.
FACILITY INSPECTIONS & MAINTENANCE AFTER CONSTRUCTION:
THE FOLLOWING MAINTENANCE TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR
FOLLOWING THE INSTALLATION OF THE UNDERGROUND DETENTION SYSTEM.
i. FOR THE FIRST YEAR FOLLOWING CONSTRUCTION, THE SITE SHALL BE INSPECTED BY THE CONTRACTOR
QUARTERLY AND AFTER STORM EVENTS THAT EXCEED 1/2 INCH OF RAINFALL.
2. THE CONTRACTOR SHALL LOOK FOR BARE OR ERODING AREAS IN THE CONTRIBUTING DRAINAGE AREA AND
AROUND THE UNDERGROUND DETENTION SYSTEM AND MAKE SURE THEY ARE IMMEDIATELY STABILIZED.
CONTRACTOR SHALL SPOT RESEED AS NECESSARY AND ENSURE ADEQUATE SITE COVERAGE IS PROVIDED
WITHIN THE FIRST YEAR. AT THE QUARTERLY INSPECTIONS, AND AFTER EACH RAINFALL EVENT IN EXCESS OF
2", THE CONTRACTOR SHALL PERFORM THE ANNUAL MAINTENANCE TASKS DESCRIBED BELOW IN #3.
AFTER THE FIRST YEAR THE OWNER SHALL PERFORM FOLLOW-UP INSPECTIONS ANNUALLY, AND AFTER EACH
SIGNIFICANT RAINFALL EVENT:
3. A SPRING MAINTENANCE INSPECTION AND CLEANUP SHALL BE CONDUCTED ANNUALLY. THE MAINTENANCE
PROGRAM FOR THE UNDERGROUND DETENTION SYSTEM SHALL INCLUDE CLEANING IT ANNUALLY OF TRASH,
DEBRIS & SEDIMENT AND ENSURING THE INTEGRITY OF THE WEIR PLATE, TRASH RACK AND OUTFALL &
INFLOW PIPES. THE OWNER SHALL ENSURE THE SYSTEM IS OPERATING AS INTENDED AND IS NOT CLOGGED
OR DAMAGED. THE OWNER SHALL IMMEDIATELY CLEAN & REPAIR THE FACILITY AS NECESSARY AND SHALL
PAY SPECIAL ATTENTION TO THE INLET AND OUTLET LOCATIONS. THE ACCESS MANHOLES SHALL BE USED
FOR INSPECTION AND MAINTENANCE.
STR:i V
DOGHOU
INV Ir
OUT: 495.4
CONTR
VERI
C
540
UNDERGROUND DETENTION SYSTEM GENERAL NOTES:
1. TRASHRACKS SHALL BE INSTALLED ON ALL ORIFICES, INCLUDING THOSE LOCATED ALONG
THE WEIR PLATE WITHIN THE UNDERGROUND DETENTION SYSTEM, IN ACCORDANCE w/ THE
DETAIL SHOWN ON ON THIS SHEET (OR EQUIVALENT).
2. DETENTION SYSTEM's WEIR PLATE TO BE PRE -MANUFACTURED AND DELIVERED TO THE
SITE. WEIR PLATE SHALL BE SECURELY AFFIXED TO THE INSIDE WALLS OF THE MANHOLE
STRUCTURE.
3. PRIVATE DESOTO COURT LOCATED WITHIN THE SWIM EASEMENT, SHALL SERVE AS ACCESS
TO THE PROPOSED UNDERGROUND DETENTION SYSTEM.
4. CONTACT COLLINS ENGINEERING (434.293.3719) REGARDING ANY QUESTIONS CONCERNING
THE UNDERGROUND DETENTION SYSTEM.
5. ALL FILL EMBANKMENT MATERIAL SHALL CONSIST PREDOMINANTLY OF SOIL AND BE
PLACED IN SUCCESSIVE UNIFORM LAYERS NOT MORE THAN 8 INCHES IN THICKNESS BEFORE
COMPACTION OVER THE ENTIRE AREA IN ACCORDANCE WITH CURRENT VDOT ROAD AND
BRIDGE SPECIFICATIONS, OR THE FILL EMBANKMENT MATERIAL SHALL MEET THE PIPE
MANUFACTURER's SPECIFICATIONS OUTLINED BELOW (WHICHEVER IS MORE STRINGENT).
6. ALL FILL SHALL BE PLACED AT 95% COMPACTION AND TESTED BY A GEOTECHNICAL
ENGINEER TO ENSURE COMPACTION IS REACHED AND MAINTAINED, OR THE FILL SHALL
MEET THE PIPE MANUFACTURER's SPECIFICATIONS OUTLINED BELOW (WHICHEVER IS MORE
STRINGENT).
7. VDOT STD. IS-1 & ST-1 ARE REQUIRED ON ALL PROPOSED PUBLIC STRUCTURES AND THE
UNDERGROUND DETENTION SYSTEM's JUNCTIONS.
8. PRIOR TO CONSTRUCTION THE CONTRACTOR SHALL TEST -DIG AT THE EXISTING INLET &
OUTFALL TO CONFIRM THE INVERTS AND TO ENSURE THE PROPOSED GRADES CAN BE
ACHIEVED. CONTRACTOR SHALL CONTACT COLLINS ENGINEERING OF ANY DISCREPANCIES IN
THE HORIZONTAL OR VERTICAL ALIGNMENT PRIOR TO ORDERING AND CONSTRUCTION
9. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA
STANDARDS FOR CONSTRUCTION INDUSTRY (29 CFR PART 1926).
10.PENDING PRIOR APPROVAL BY COLLINS ENGINEERING, THE DRAINAGE PIPE MATERIALS MAY
BE SUBSTITUTED. ALL DRAINAGE PIPE INSTALLATION PRACTICES SHALL BE IN ACCORDANCE
WITH CURRENT VDOT STANDARDS AND REQUIREMENTS. CONTRACTOR SHALL ENSURE
MINIMUM COVER REQUIREMENTS ARE MET WITH ANY PIPE SUBSTITUTION.
STORM SEWER NETWORK
POINT
DOWNSTREAM
STRUCTURE
INVERT
ELEVATIONS
LENGTH
SLOPE
SIZE
PIPE
MATERIAL
RIM
ELEVATION
UPPER
LOWER
FEET
%
INCHES
UGD
4
510.50
510.38
19.76
0.60%
18
HOPE
-
4
3
510.28
509.56
120.76
0.60%
18
HOPE
524.34
2
509.46
501.86
95.70
7.94%
18
HOPE
514.00
2
1
499.15
495.50
45.56
8.00%
18
MPE
505.36
540
STR:4 VDOT STD. MH
TP=524-34
INV IN: 510-38 TO UGD
-INV IN: 533.5o TO 5
535
INV OUT: S10.28 TO 3
535
-PROPOSED
GRADE (TYP.)
-
SAFETY SLAB SL-i REQUIRED
INLETSHAPING I -i
STR:3 VDOT STD. M H
TP=514-00
-ESS MH
530
INV IN: 5og.56 TO 4
HWI STAIRS FOR INSPECTION
530
INV OUT: 509-46 TO 2-
SAFETY SLAB SL-i REQUIRED
11& MAINTENANCE
TO
BE PLACED AT
5% COMPACTION
(TY
SEE TEST PIT NOTE
THIS SHEET
rFILL
525
TP
/7\
525
7--
Z I
520
iz
Z
a. <
r/
Z
520
STR:2 VDOT STD. MH
Ln
r-.
a 2
D
lio-XR P K
E-
TP=505-36
0
+
0
J LU
INV IN: 5o3..86 TO 3
Z
0
< F-
D <
</
INV OUT: 499.iS TO i
-
Z
X
51S
LU
WSE=P5
2- P K
S 5P 7
53-5
><
0
<
\_EXI
3TING GRADE
W
CIL
3:
(TYP.)
(L
>�
WEIR FLAI
t
<
LU
/-INVERT=Sio.So
DOT STD. MH
.........
TP=Soo.03
----- - T_�
0
3E MANHOLE-
...... 11111111��
4: 495.5o TO 2
3.8" HDPE
(EX 18" RCP)
120-76 LF @ o.6o%
1.5
18" HDPE
50S
39-76 LF @ o.6o%-
jPROPOSED LOWER 3.8
505
18" HDPE
UNDERGROUND DETENTION
95.7o LF @ 7.94%
SYSTEM PRIMARY OUTFALL
Soo
500
A,CTOR TO
PROPOSED '12o" HDPE UNDERGROUND DETENTION
=Y INVERT_�
SYSTEM @ o.So% TO ATTENUATE RUNOFF CAUSED
IF EX, PIPE
FROM THIS DEVELOPMENT.
TOTAL HDPE LENGTH =367-00'
495
495
18" HDPEJ
45-56 LF @ 8.00%
490
490
0
0
It
0
a)
0
It
H
0)
H
rq
N
Ln
10+00 10+50 11+00 11+50 12+00 12+50 13+00
13+50 14+00
� UNDERGROUND
DETENTION
SYSTEM
PROFILE
�
PLEASE SEE SWM CALULATIONS PACKET FOR
STORM DRAIN COMPUTATIONS FROM THE UGD
SYSTEM TO THE OUTFALL AS WELL AS THE
ANALYSIS OF THE EXISTING STORM DRAIN SYSTEM
PROFILE SCALES
i"=5'(VERTICAQ
I"=50'(HORIZONTAL)
535
STR:5 VDOT STD. M H
TP=527-02
INV IN: 517-18 TO UGD
INV OUT: 514.o8 TO 4
SAFETY SLAB SL--i REQUIRED
1 530 1
FILL TO BE PLACED AT
95% COMPACTION (TYP.)
525
STR:4 VDOT STD. MH
TP=524-34
INV IN: SIO-38 TO
INV IN: 523-So TO 5
INV OUT: 510.28 TO 3
SAFETY SLAB SL-i REQUIRED
INLET SHAPING IS-3. REQUIRED
515
15" HDPE
30-07 LF @ 5.79%
1 510
505
_� - -1 - - - - - - - - --- - I - - - - --- - - - I - - - - - - - - - -- �1 - - - - - - - - - --- - - - - - - - - - - - - - - - - - - - - - I - - - - - - - - -
�'Z
FFE=531.67 FFE=532.33
R=531.33 GAR=532.00 11 FFE=532.33 I FFE=533.00 1 3.00 FE=533.67 E=%53 .67 FFE=534.33 1 FFE=535.00 1 FFE=536.33 FFE=537.00
GA GAR=532.00 1 1 FFE--533.00 I FFE=53 FF I
GAR=532.67 I GAR=5 4.67 1 GAR=536-00 GAR=536.67'
GAR=532.67 I GAR=532.67 GAR=533.33 GAR=533.33 GAR=534.00 I
A,
PIPE ALLOWS
PROPOSED ELEVATED 015 pUILDING,
ALL PIPE CONNECTIONS TO THE UGD �j� - I I -------
SYSTEM SHALL BE WATER TIGHT MORE SIGNIFICANT & LESS FREQUENT 24 UNITS
STORM EVENTS TO SAFELY BYPASS THE
ROUND DETENTION SYSTEM
PROPOSED ACCESS MH w/ STAIRS FOR - - - - - - - -
INSPECTION & MAINTENANCE, TYP. R VA E SIDEWALK TO
ACCESS MH TO BE LOCATED UPSTREAM &
SERVE AS ACCESS TO SWM
STREAM FROM RESTRICTIVE WEIR
DOWN FACILITY, \L
PLATE AND AT THE MIDPOINTS& HIGH
POINTS OF THE SYSTEM, AS SHOWN.
L 530
01 VI.,
'511 .
01 0"
I k , 9 . I - - V-, - 516
PROPOSED LOWER 018
UNDERGROUND DETENTION
77, SYSTEM PRIMARY OUTFALL
`CONTRACTOR SHALL CALL THE COUNTY INSPECTOR & RESTRICTIVE S EEL WEIR PLATE, AT
ENGINEERING DEPARTMENT 24-HOURS BEFORE ANY LOW POINT, TO DRAIN THE SYSTEM.
--- --- r ANTICIPATED CONSTRUCTION ACTIVITIES FOR THE
B s. THIS IS INCLUSIVE OF WHEN THE
MP
UNDERGROUND DETENTION SYSTEM SUBGRADE IS
E CONSTRUCTION, BUT BEFORE STONE
STALLED.
LINDE
535
OSED GRADE (TYP.)
530
GRADE (TYP.)
525
PROPOSED ELEVATED iS" PIPE
ALLOWS MORE SIGNIFICANT & LESS
FREQUENT STORM EVENTS TO
SAFELY BYPASS THE UNDERGROUND
DETENTION SYSTEM
520 1
iS" HDPE
25.96 LF @ 7.01% 53-5
510
PROPOSED 120" HDPE UNDERGROUND DETENTION
SYSTEM @ o.So% TO ATTENUATE RUNOFF CAUSED
FROM THIS DEVELOPMENT.
TOTAL HOPE LENGTH=367-00'
SOS I
10+00 10+50 11+00
EMERGENCY BYPASS PRO
NOTE: PROPOSED STORM SEWER SHOWN IS HDPE, A
VDOT APPROVED MATERIAL ALTERNATIVE TO CLASS
III RCP. THE CONTRACTOR MAY SELECT A VDOT
APPROVED MATERIAL IN LIEU OF THE HDPE FROM
THEIR APPROVED LIST PROVIDED ALL PIPE, PIPE
BEDDING, BACKFILL AND INSTALLATIONS ARE IN
ACCORDANCE WITH THE CURRENT VDOT STANDARDS.
ANY PIPE MATERIAL PROPOSED AS CL. IV RCP SHALL
NOT BE SUBSTITUTED WITH ANOTHER PIPE MATERIAL.
NOTE: ALL DRAINAGE STRUCTURES WITH A DEPTH
OF 12'OR GREATER SHALL HAVE SAFETY SLABS IN
ACCORDANCE WITH STANDARD SL-3. AS FOUND IN
THE 2oo8 ROAD AND BRIDGE STANDARDS.
NOTE: ALL DRAINAGE STRUCTURES WITH A DEPTH
OF 4'OR GREATER SHALL HAVE STEPS IN
ACCORDANCE WITH STANDARD ST-iAS FOUND IN
THE 2oo8 ROAD AND BRIDGE STANDARDS.
NOTES:
i. ALL FILL TO BE PLACED AT 95% COMPACTION.
2. MINIMUM 3-5'OF COVER MUST BE MAINTAINED OVER W/L.
3. MINIMUM OF -i'OF VERTICAL SEPARATION FROM STORM
SEWER & W/L AND 3..5'OF SEPARATION BETWEEN W/L &
SANITARY SEWER MUST BE PROVIDED.
NOTE: CLASS I BACKFILL MATERIAL SHALL BE CRUSHER RUN AGGREGATE
SIZE NO. 25 OR 26, AGGREGATE BASE MATERIAL SIZE 21A OR 21B, FLOWABLE
FILL, OR CRUSHED GLASS CONFORMING TO THE SIZE REQUIREMENTS FOR
CRUSHER RUN AGGREGATE SIZE 25 AND 26, PER VDOT ROAD AND BRIDGE
SPECIFICATIONS, SECTION 302-03G.
NOTE:
WEIR PLATE TO BE BOLTED &
SEALED TO DETENTION SYSTEM
WITH WATERTIGHT CONNECTIONS.
MANUFACTURE / INSTALL ONE (i) OVERFLOW WEIR
(EQUIVALENT DIAMETER = 16-41") ACROSS THE STEEL PLATE
(INVERT ELEVATION 520.00')
BERKMAR DRIVE
STATE ROUTE 1403
- _.., n Ahl
0120" WEIR PLATE DETAIL
MANUFACTURE / INSTALL ONE (i) 09"Xi6" MID -FLOW _�\
ORIFICE IN THE STEEL PLATE (INVERT ELEVATION 525.5o')
INSTALL TRASH RACKS ON ALL'Z
ORIFICES, TYP. SEE THIS SHEET
FOR DETAIL, OR EQUIVALENT.
MANUFACTURE / INSTALL ONE (1) 04.5" LOW -FLOW ---
ORIFICE IN THE STEEL PLATE ATTHE LOW POINT OF THE
DETENTION SYSTEM (INVERT ELEVATION=510.50')
SCALE:3."=5'
ELEV.=520.50'
(TOP OF PIPE)
N�UH(_FU 121
STEEL PLATE
ELEV.=510-50'
(BOTTOM OF PI
COUNTY OF ALBEMARLE
Department of Community Development
Construction Record Drawings (As -built) for VSMP
The following is a list of information required on construction record drawings for
stormwater facilities (reference Water Protection Ordinance 17-422). It is preferable that the
construction record drawing be prepared by someone other than the designer. Please do not
provide design drawings as construction record drawings.
A. A signed and dated professional seal of the preparing engineer or surveyor.
B. The name and address of the firm and individual preparing the drawings on the title sheet.
C. The constructed location of all items associated with each facility, and the inspection records to verify
proper dimensions, materials and installation. The items include, but are not limited to the following:
I . Inspection Records and photographs for pipe trenches and bedding, including underdrains.
2. Video Pipe Inspection for any pipes which are not accessible or viewable.
3. Updated Location with geo-coordinates of all facilities.
4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities.
5. Current physical and topographic survey for all earthen structures. Ponds should include a survey
of the pond bottom. Surveys should verify pond volumes are per design. Corrections may be required
for alterations from the design.
6. Plants, location and type.
7. Plans and profiles for all culverts, Pipes, Risers, Weirs and Drainage Structures - Display the
installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s),
inlet and outlet protection, alignment and invert elevations compared to design.
8. Computations: For significant deviations from design, provide sealed computations verifying that
the as -built condition is equivalent or better than design.
9. Ditch Lines - Display the constructed location of all ditch lines and channels, including typical
sections and linings.
10. Easements - Show all platted easements with dead book references labeled. Facilities and drainage
must be within platted easements. Provide copies of recorded documents.
11. Guardrail, fences or other safety provisions - Display the constructed location of all safety
provisions; fences, guardrail, including the type, length and applied end treatments, compared to
design.
12. Material layers - biofilter media, stone layers, sand layers, keyways and cores must be verified as to
material types and depths. Include inspection reports, boring or test pit reports and materials
certifications. Biofilter media must be an approved state mix.
13. Access roads - show location of access roads, surface treatment, drainage, etc, as applicable.
14. Compaction reports are required to verify fill compaction in dams.
15. Manufacturers certifications for proprietary BMP's certifying proper installation and functioning.
t�
SCOTT/R. CZ�LLJNS��
No. 35791 11,
11/21/22 4J
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JOB NO.
202196
SCALE
AS SHOWN
I
High Performance (Bell & Spigot) Joints
S7ANDARD DUROMAXX
BELL (TYPICAL 1 1-WIDE)-
HAND DUG BELL
HOLE Wl $MALL
TROUGHINFRONT
OF BELL
A "bell hole"needs to be dug under thebellend ol thepipe to accommodate
the diameter difference.
NOTE: ALL JOINTS TO BE
WATERTIGHT
A best practice for bell and spigot joints is to lay a steel plate under the bell to help 'home" the next pipe.
20 MIL PE
IMPERMEABLE
LINER OVER
TOP OF PIPE LIMITS OF
(IF REQUIRED) REQUIRED
BACKFILL
r� T:yVp��36' SEE TYPICAL
20"TYP B
B , ACKFILL DETAIL
N(
=TA k NOTES
TYPICAL SECTION VIEW
2161MI161RISTLIRM
NOTE: IF SALTINGAGENTS FOR SNOWAND ICE REMOVALARE USED ON OR NEAR THE
TR-0-JECT, A GEOMEMBRANE BARRIER IS RECOMMENDED WITH THE SYSTEM. THE
GEOMEMBRANE LINER IS INTENDEDTCHELP PROTECT THE SYSTEM FROM THE
POTENTIAL ADVERSE EFFECTS THAT MAY RESULT FROM A CHANGE IN THE
SURROUNDING ENVIRONMENT OVER A PERIOD OF TIME. PLEASE REFER TO THE
CORRUGATED METAL PIPE DETENTION DESIGN GUIDE FORADDITIONAL INFORMATION.
Z
Lit
Standard Back -fill Detail - Specification & Standard Drawing
I/V zinc plated hook
�_attocehad with 3/8* fattener
Isornintric
a ritect
DEBRIS CAGE
1/0' die rall.
1/4' RDFE plate (optional)
- Hapir m,a,,ta,.i piloiti, will-
8-1/8" hot" and 1/4' Plato
auzoo.f..L�rrd 6, Plai.ti.
tialutions lr� or cqual
h.. ,h
tiar.l plot.
�npf'zt-u,t�irinl olh
'/ " role. ad 1/4- plate
b, Pitunle
a, ",.1
1\ PLASTIC
INC. 877-8�-6727
po, Ft.. 4,ttlo
OLUTIONS
Es,
UNDERGROUND DETENTION SYSTEM MINIMUM TRENCH & BACKFILL REQUIREMENTS
1. THE TRENCH CONTAINING THE TRIPLE RUN OF 120" HDPE STORM PIPE SHALL HAVE
A 474" WIDE TRENCH. THE TRENCHES CONTAINING THE 15" BYPASS HDPE PIPE AND
THE 15" OUTFALL PIPE SHALL HAVE 36" WIDE TRENCHES. CONTRACTOR SHALL WRAP THE
EXCAVATED TRENCHES WITH A 6 OUNCE FILTER FABRIC CLOTH. A SUITABLE FOUNDATION
SHALL BE BENEATH THE TRENCHES' FILTER FABRIC CLOTHS.
2. TRENCHES TO INCLUDE A 6" #57 STONE BED AT 95% COMPACTION BENEATH THE HIP
STORM PIPES.
3. TRENCHES SHALL BE BACKIFILLED WITH #57 STONE AT 95% COMPACTION AND SHALL
EXTEND A MINIMUM OF 6" VERTICALLY ABOVE THE CROWN OF THE STORM PIPES.
4. THE TOP OF THE #57 STONE SHALL BE COVERED WITH A 6 OUNCE FILTER FABRIC CLOTH,
OVERLAPPING THE PREVIOUSLY INSTALLED CLOTH THAT SURROUNDS THE BOTTOM AND
SIDES OF THE TRENCHES.
5. SUITABLE FILL REACHING THE FINISHED GRADES SHALL BE APPLIED ABOVE THE TOP
LAYER'S FILTER CLOTH, MEETING MINIMUM PIPE MANUFACTURER'S REQUIREMENTS TO
PREVENT FLOATATION AND ENSURE PIPE INTEGRITY IS MAINTAINED.
6. A MINIMUM COVER OF 12" IS REQUIRED ABOVE THE CROWN OF THE STORM PIPES.
7. SEE THE'TYPICAL BACKFILL DETAIL'ON THIS SHEET FOR ADDITIONAL UNDERGROUND
DETENTION SYSTEM PIPE REQUIREMENTS.
DIAMETER
MAX
COVER"
75% MAX
COVER**
30"-42"
501-01
37'-S"
48'-96'
30'-0'
22im6"
120"
25'-G'
*FOR INITIAL BACKFILL USE ASTM D2321,
CLASS 1, 11 MATERIAL.
-REDUCED MAX. COVER WHEN USING ASTM
D2321 CLASS Ill MATERIAL IN
TRENCHIHAUNCH ZONE OR FOR FIRST
BACKFILL.
MINIMUM TRENCH WIDTH MUST ALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER PIPE. MIN. WIDTH (1.25x
DIAMETER) + 12"(FOLLOWASTM D2321)
FOUNDATION SHALL BE WELL CONSOLIDATED & STABLE.
BEDDING MATERIAL SHALL BEA RELATIVELY LOOSE MATERIAL THAT IS ROUGHLY SHAPED TO FIT THE BOTTOM OF THE PIPE, 4- TO Be IN
DEPTH.
DUROMAXX STEEL REINFORCED (SRPE) PIPE.
I N ITIAL BACKFI ILL FOR PI RE EMBEDMENT MATERIAL TO MEET ASTM D2321 CLASS 1, 11, 111 OR APPROVED EQUAL, COMPACTED TO 90%
STANDARD PROCTOR (NATIVE MATERIAL CAN BE UTILIZED THAT MEETS ASTM D2321 OR APPROVED EQUAL).
ALL LIFTS PLACED IN CONTROLLED MANNER. TO PREVENT UNEVEN LOADING, IT IS RECOMMENDED THAT LIFTS NOT EXCEED Be
UNCOMPACTED LIFT HEIGHTS.
IS HAUNCHZONE MATERIALSHALLBE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION.
MINIMUM HEIGHT OF COMPACTED COVER PER DIAMETER FOR CONVENTIONAL HIGHWAY LOADS (DISTANCE MEASURED FROM TOP OF
PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT):
ITMINIMUM FOR PIPE DIAMETERS 30'- 60'
18'MINIMUM FOR PIPE DIAMETER 66"- 72"
24" MINIMUM FOR PIPE DIAMETERS 84"- 96"
36' MINIMUM FOR PIPE DIAMETER 120'
IS INITIAL BACKFILL ABOVE PIPE MAY BE REDUCED AS NOT TO ENCROACH UPON ROAD BASE, OTHERWISE:
6' MINIMUM FOR PIPE DIAMETERS 30'- 60'
18" MINIMUM FOR PIPE DIAMETER 120'
ITMINIMUM FOR PIPE DIAMETERS 66'- 96'
FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS PER THE PROJECT PLANS, SPECIFICATIONS. ENGINEER OF
RECORD.
NOTES:
• GEOTEXTILE SHALL BE USED AS REQUIRED TO PREVENT SOIL MIGRATION.
• FOR MULTIPLE BARREL INSTALLATION THE RECOMMENDED STANDARD SPACING BETWEEN PARALLEL PIPE RUNS SHALL BE = PIPE
DIA.12 OR &FOR PIPE DIAMETERS 72'AND LARGER. CONTACT YOUR CONTECH REPRESENTATIVE FOR NONSTANDARD SPACING.
• BACKFILL REQUIREMENTS SHALL FOLLOW ASTM D2321. IN THE EVENT OF DISCREPANCIES, ASTM D2321 SHALL SUPERCEDE THIS
DETAIL.
PLAN
FRONT
48'0 to 9(Y'O FITTING REINFORCEMENT
MAYBE REQUIRED BASED ON HEIGHT OF
COVER AND LIVE LOAD CONDTION
TYPICAL MANWAY DETAIL
NOT TO SCALE
A
36"0 MAX., HS-25 ACCESS CASTING REINFORCING TABLE k
WITH GRADE RINGS AS REQUIRED, TO
BE PROVIDED AND INSTALLED BY
"BEARING
CONTRACTOR. MAYBE TOP MOUNTED 0 HDPE SCOTT R. LINS
TEMPORARY COVER FOR HDPE (AS SHOWN) OR RECESSED A B 0 REINFORCING PRESSURE C)
RISER
CONSTRUCTION LOADS E PROTECTION RIMfFINISHED U No. 35791 11,
E FINISHED SLAB or
(PS F)
GRADE GRAD E 0 4'0 #5 @ I T OCEW 2,540 `6 (22
HEIGHT OF VARIES 11/21)
24" 26" #5 @ 10" OCEW 1,900
COVER 4'x4'
A 4- 11 1 oJ
#5 @ 10" OCEW 2,260 IGIVAL
4'-6"0
4'-6" x 4'-6" 32" #5 @ go OCEW 1,670
0
SCOTT R ( *(!.L
t"Mifl (U No 35
,.�5 1 1 2 1)
0
,l� �,
41 �& 1OJvAL
-1 36" 510. 38" #5 @ go OCEW 2,060
GASKET MATERIAL OHDPERISER 5 X5 #5 @ 8" OCEW 1,500
SUFFICIENT TO PREVENT <.
SLAB FROM BEARING ON _/ � �i T-6"O #5 @ 8" OCEW 1,490
� W 42" 44"
CONSTRUCTION LOADS RISER TO BE PROVIDED BY CE 9 L 0 51-6" x 5'_6" #5 @ 8" OCEW 1,370
FOR TEMPORARY CONSTRUCTION VEHICLE LOADS, AN EXTRAAMOUNT OF COMPACTED COVER MAY BE REQUIRED OVER CONTRACTOR. OR 11aTYP.-, 6.0 #5 @ To OCEW 1,210
TH E TOP OF TH E PI PE. TH E H EIGHT -OF -COVER SHALL MEET THE MIN I MU M REQU I REMENTS SHOWN IN THE TABLE BE LOW. 74F a I xe 50" #5 @ To OCEW 1,270
SECTION VIEW F
THE USE OF HEAVY CONSTRUCTION EQUIPMENT NECESSITATES GREATER PROTECTION FOR THE PIPE THAN FINISHED
GRADE COVER MIN I MU MS FOR N OR MAL H IGHWAY TRAFF IC.
'
I
Minimum Height of Cover Requirements for Construction Loads.
The Minimum cover should be a COMPACTED Height of cover
Requirement.
DiametLit'Spart
(in)
Aide Load ()aps)
75:5100
1 110:5150
30-42
2.0 tt
2.5 tt
3.0 ft
-
3.0 ft
48-72
31 tt
3.0 tt
3.5 ft
4.0 ft
84-96
3.1) ft
3.5 tt
4.0 ft
4.5 ft
108-120
3.5 ft
4.0 ft
4.5 ft
5.0 ft
M IN I MU M C OVE R MAY VARY, DE P EN DIN G ON LOCAL CON D IT IONS. THE CONTRACTOR MUST PROVIDE THE ADDITIONAL
COVER REQUIRED TO AVOID DAMAGE TO THE PIPE. MINIMUM COVER IS MEASURED FROM THE TOP OF THE PIPE TO
THETOP OFTHE MAINTAINED CONSTRUCTION ROADWAY SURFACE.
CONSTRUCTION LOADING DIAGRAM
NOT TO SCALE
ASSUMED SOIL BEARING CAPACITY
I ACCESS CASTING NOT SUPPLIED BY CONTECH
7D,
0 A A
/;V>
�,s B
Ly #4 DIAGONAL TRIM
BAR (TYP. 4 PLACES)
#4 DIAGONAL TRIM
BAR (TYP. 4 PLACES), I I.- �_% -4 1 SEE NOTE 7:
4 4-
SEE NOTE 7.
ft7 2"
/ER - - - - - -
(TYP)
R,.\
rjl fI I
%
/< >11
�% F..,-
L L
OPENING IN
PROTECTION
OPENING IN
Z
PROTECTION SLAB FOR
=
SLAB FOR
ACESS I
71
ACCESS
INTERRUPTED BAR
01
4- _% J
- - - -
1 11
JI _11. I L - - - -
REPLACEMENT,
INTERRUPTED BAR
SEE NOTE 6.
SPECIFICATION FOR STEELREINFORCED POILYEHTYLENEPIPE-ALUMINIZED TYPE 2 STEEL
REPLACEMENT, SEE
SCOPE HANDLING AND ASSEMBLY NOTE 8.
STANDARD
STANDARD
THIS SPECIFICATION COVERS THE MANUFACTURE AND
SHALL BE IN ACCORDANCE TO THE REQUIREMENTS OF ASTM
REINFORCING, REINFORCING,
OB
INSTALLATION OF THE STEEL REINFORCED POILYEHTYLENE PIPE (SRPE)
D2321.
SEE TABLE SEE TABLE
DETAILED INTHE PROJECTPLANS.
INSTALLATION
ROUND OPTION PLAN VIEW
SQUARE OPTION PLAN VIEW
MATERIAL
SHALL BE IN ACCORDANCE WITH AASHTO STANDARD
THE ALU MIN IZED TYPE 2 STEEL COILS SHALL CONFORM TO TH E
SPECIFICATIONS FOR HIGHWAY BRIDGES, SECTION 28, DIVISION 11
NOTES:
7. TRIM OPENING WITH DIAGONAL#4 BARS, EXTEND BARS A
APPLICABLE REQUIREMENTS OF AASHTC M274 OR ASTM A929.
OR ASTIM D232mAND IN CONFORMANCE WITH THE PROJECT PLANS
MINIMUM OF 12" BEYOND OPENING, BEND BARS AS REQUIRED
AND SPECIFICATIONS. IF THERE ARE ANY INCONSISTENCIES OR
1.
DESIGN IN ACCORDANCE WITH AASHTO, 17th
TO MAINTAIN BAR COVER.
PIPE
CONFLICTS THE CONTRACTOR SHOULD DISCUSS AND RESOLVE
EDITION AND ACI 350.
WITH THE SITE ENGINEER.
8. PROTECTION SLAB AND ALL MATERIALS TO BE PROVIDED AND
THESIRPESHALL BE MANUFACTURED IN ACCORDANCE WITH THE
2.
DESIGN LOAD HS25.
INSTALLED BY CONTRACTOR.
APPLICABLE REQUIREMENTS OF AASHTO M36 OR ASTM F2562. THE
IT IS ALWAYS THE RESPONSIBILITY OF THE CONTRACTOR TO
PIPE SIZES, GAGES AND CORRUGATIONS SHALL BE AS SHOVVN ON
FOLLOW OSHA GUIDELINES FOR SAFE PRACTICES.
3.
EARTH COVER = VMAX.
9. DETAIL DESIGN BY DELTA ENGINEERS, ARCHITECTS AND LAND
THE PROJECT PLANS.
SURVEYORS, ENDWELL, NY.
4.
CONCRETE STRENGTH 4,000 psi
ALL FABRICATION OF THE PRODUCT SHALL OCCUR WITHIN THE
UNITED STATES.
5.
REINFORCING STEEL= ASTM A615, GRADE 60.
6.
PROVIDE ADDITIONAL REINFORCING AROUND
OPENINGS EQUALTOTHE BARS INTERRUPTED,
MANHOLE CAP DETAIL
MATERIAL SPECIFICATION
HALF EACH SIDE. ADDITIONAL BARS TO BE IN THE
NOT TO SCALE
SAME PLANE.
NOT TO SCALE
V 4"
4"
3/4" (#6) REBAR CAN BE CUT FLUSH
TO OUTSIDE OF RAIL
(BAR LENGTH zz 163/4") OR BAR CAN
EXTEND BEYOND RAILY2"±
2"
2/
ALL STEEL PER
ASTM A36
BRICATION TOLERANCE: tV4"
ATBARANDREBAR MILL
LERANCE APPLIES
12" TYP.
CENTER TO CENTER '/o" HOLE Wit �/4" REBAR RUNG,
WELD REBAR TO RUNG ON
RUNG SPACING
OUTSIDE OF STEEL RAIL
2Y2" x %" FLAT BAR SIDE RAIL
NOTES: PLAN SIDE
1. LADDERS CAN BE MADE IN 20'.0" STANDARD LENGTHS AND CUT TO FIT
2. ALL MATERIAL TO MEET ASTM A36
3. LADDER TO BE HOT DIPPED GALVANIZED PER ASTM A-123 AFTER
FABRICATION IS COMPLETE
STANDARD LADDER DETAIL
NOT TO SCALE
PART NO. HALAGVL16
PROVIDE MINIMUM OF 4 ATTACHMENT
ANGLES (2 ON EITHER SIDE OF LADDER RAIL)
TO CONNECT LADDER TO RISER EXTENSION
RISER w/ LADDER AND STEPS
IF EXTENSION IS REQUIRED
RISER wl LADDER
AND STEPS
MAINLINE CMP
236xY2,5x 1, 3x 1, ETC.
NOTE
THIS DRAWING IS INTEN DED TO APPLY TO LADDERS
INSTALLED IN RISERS HAVING A DIAMETER OF 30" OR
LARGER. DUE TO SPACE CONSTRAINTS AND LIMITED
ACCESSIBILITY, THE PRACTICALITY AND SUITABILITY OF
UTILIZING RISERS SMALLER THAN 30" DIAMETER
AND/OR INCORPORATING LADDERS IN THESE SMALLER
DIAMETER RISERS SHOULD BE ADDRESSED BYTHE
OWNER AND PROJECT ENGINEER
'NOTE WHEN RISER EXTENSIONS
ARE USED, THE PLANT SHOULD
CUT 3" FROM THE SIDE RAILS AS
SH OWN
*3" FROM BOTTOM OF LADDER
RAIL TO RISER JOINT
*3" FROM TOP OF LADDER
RAIL TO RISER JOINT
LADDER RAILS AND RUNGS
(2)Y4" FILLETWELDS V LONG
�5" x 3" x Y4" x 16" LONG AT V0"
ATTACH MENT ANC
MIN I MU M OF 4 ANGLES P
SPACING. LONG LEG TO
LADDER SECTION, (2 EACH SIDE
C?
PROJECT OUT. WELD TOP
LADDER) 3' MAX. SPACI
V-6"
AND BOTTOM OF 3" LEG TO EACH
VERTICA1
MAX..
CORRUGATION CREST
TH ESE AN GILES SHOU LID BE U SED
FOR LARGER DIAMETER
E:
MAIN LIN ES WH ERE ADDITIONAL
STEPS ARE NEEDED)
6" FROM RUNGTO
RISER JOINT
8" FROM RUNG TO
RISER JOINT
SECTION A -A
RISER LADDER DETAIL
NOT TO SCALE
RISER NORMALLY
HDPE
(4) Ylo" FILLET WELDS FROM
EACH ANGLE CORRUGATION
CREST (2WELDS EACH SIDE)
(4) 43" x 3" x 1/16"
5Y2" LONG
(2)Y4" FILLETWELDS
1" LONG FROM EACH ANGLE
TO LADDER RAIL
(4)Y18" FILLET WELDS
FROM EACH ANGLE TO
(4)?16" FILLETWELDS
FROM EACH ANGLE TO CORRUGATION CREST
CORRUGATION CREST (2 WELDS EACH SIDE)
(2 WELD EACH SIDE)
3" x 3" x �3" x 3" x 3/18"
5Y2" LONG
5Y2" LONG
LADDER RAILS
AND RUNGS
-4
PLAN
ELEVATION
RIN
_!0- A
;7-
LADDER Ri
AND RUNG
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SCALE
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202196
30 0 15 30 60 120
SCALE
30 0
SHEET NO.
IN FEET
1 inch - 30 ft.