HomeMy WebLinkAboutWPO202100013 Plan - VSMP 2021-06-23F711l
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OWNER.*
05500-00-00-077A1
✓AMES ✓ACKSON JR
6107 JARMANS GAP ROAD
CROZET, VA 22932
ENGINEER:
COLLINS ENGINEERING
200 GARRETT ST, SUITE K
CHARLOTTESVILLE, VA 22902
(434)291
TAX MAP NO.:
05500-00-00-077A1 (DB 3879 PG 408)
TOTAL PROJECT AREA:
05500-00-00-077A1 - 4.87 AC
ZONING
R-1 RESIDEN77AL (BONUS LEVEL - CONVENTIONAL DEVELOPMENT)
MIN. LOT SIZE = 30,000 SF.FT.
MIN. LOT FRONTAGE = 100 FEET
PRESERVED/MANAGED SLOPES. NO PRESERVED OR MANAGED SLOPES ARE LOCATED ON THE PROPERTY
PROPOSED USE:
5 SINGLE FAMILY DETACHED LOTS
ALLOWABLE DENSITY.,
0.97 UNITS / ACRE + 1OX BONUS DENSITY FOR INTERNAL STREETS
0.97 UNITS/AC x 1.10.E x 4.87 ACRES = 5.16 UNITS
PROPOSED DENSITY.-
5 SINGLE FAMILY DETACHED UNITS (1.03 DU/ACRE)
OPEN SPACE.
NO OPEN SPACE REQUIRED, AND NO OPEN SPACE PROPOSED WITH THE
DEVELOPMENT.
BUILDING HEIGHTS.
MAXIMUM BUILDING HEIGHTS SHALL NOT EXCEED 35 FEET
SETBACKS.,
NON-INFILL DEVELOPMENT
FRONT MINIMUM: 5 FEET FROM THE RIGHT-OF-WAY OR THE EXTERIOR EDGE
OF THE SIDEWALK IF OUTSIDE OF THE RIGHT-OF-WAY
FRONT MAXIMUM., NONE
GARAGE MINIMUM. 18 FEET FROM THE RIGHT-OF-WAY OR THE EXTERIOR EDGE
OF THE SIDEWALK IF OUTSIDE OF THE RIGHT-OF-WAY
SIDE LOADING GARAGE.•5 FEET FROM THE RIGHT-OF-WAY OR THE EXTERIOR EDGE
OF THE SIDEWALK IF OUTSIDE OF THE RIGHT-OF-WAY
SIDE MINIMUM. 5 FEET
SIDE MAXIMUM: NONE
REAR MINIMUM. 20 FEET
REAR MAXIMUM. NONE
SUBDIVISION STREETS:
CURB & GUTTER
WATERSHED:
THIS PROPERTY IS WITHIN THE LICKINGHOLE CREEK WATER SUPPLY PROTECTION
AREA.
AGRICULTURAL/ FORESTAL DIS7RICT.• NONE
TOPO & SURVEY
TOPOGRAPHY AND BOUNDARY INFORMA77ON PROVIDED BY ROUDABUSH, GALE,
AND ASSOCIATES. BOUNDARY AND TOPO WERE COMPLETED IN JULY, 2020.
TOPO IS COMBINATION OF FIELD -RUN TOPO AND AERIAL TOPO. TOPO WAS
FIELD -VERIFIED AND CHECKED AND VISUALLY INSPECTED IN AUGUST, 202a
DATUM.
NAD 83
EXISTING VEGETATION.,
PAR77ALLY WOODED WITH EXIS77NG RESIDENCE S7RUCTURES
LIGHTING
NO LIGHTING IS PROPOSED
PARKING.
2 OFF-STREET PARKING SPACES SHALL BE PROVIDED FOR EACH DWELLING UNIT
ADD177ONAL PARKING SPACES SHALL BE LOCATED ALONG THE ROADWAY.
BUILDING SITES:
PARCELS 1-5 MAY NOT BE FURTHER DIVIDED. ONLY (1) DWELLING UNIT PER LOT
SHALL BE ALLOWED.
BURIAL SITES:
NONE
FLOODPLAIN.,
THIS SUBJECT PROPERTY IS LOCATED IN ZONE X. THERE IS NO 100-YEAR
FLOODPLAIN LIMITS ON THE SUBJECT PARCELS, PER FEMA MAPS 51003CO228D &
51003CO229D, FEBRUARY 4, 2005.
OFFSITE DISTURBANCE.
NO OFFSI7E DISTURBANCE IS PROPOSED WI7H THIS PLAN, EXCEPT FOR THE TIE-IN
CONNEC77ONS FOR THE SANITARY SEWER AND LATERALS TO THE EXIS77NG SEWER
LOCATED ON THE CREEKSIDE PROPERTY. ALL WORK SHALL BE PERFORMED
WITHIN THE EXIS77NG U77LITY EASEMENT AS SHOWN.
LANDSCAPING:
S7REET TREES ARE PROPOSED ALONG THE NEIGHBORHOOD STREET IN
ACCORDANCE WI7H ALBEMARLE COUNTY LANDSCAPING REQUIREMENTS WITHIN
SEC77ON 32.7.9 OF 774E COUNTY CODE.
PROPOSED LAND AREAS.,
L0IS., 4.24 AC. (87.1X)
RIGHT-OF-WAY: 0.63 AC. (12.97)
IMPERVIOUS AREAS.,
ROADWAY & SIDEWALK: 17,275 SF
BUILDING/HOUSE. 20, 000 SF
TOTAL IMPERVIOUS AREA: 37,275 SF (0.86 AC.) - 1761- IMPERVIOUS
BUILDING SITES:
EACH PARCEL CONTAINS A BUILDING S17E THAT COMPLIES WITH SEC77ON 4.2.1.
OF THE ALBEMARLE COUNTY ZONING ORDINANCE.
PHASING
THE PROJECT SHALL BE DEVELOPED AS ONE PHASE
S77?EAM BUFFERS:
A SMALL PORT70N OF THE SITE ALONG THE EASTERN BOUNDARY IS LOCATED
WITHIN THE 100' STREAM BUFFER AS SHOWN ON SHEET 2. THIS AREA SHALL BE
MANAGED IN ACCORDANCE WITH ALBEMARLE COUNTY WATER PR07ECT70N
ORDINANCE.
RETAINING WALLS.
THERE IS (1) 4' RETAINING WALL PROPOSED WITH 774E DEVELOPMENT, AS SHOWN
ON SHEET J.
TRASH.
EACH LOT SHALL HAVE AN INDIVIDUAL TRASH CONTAINER.
RECREA77ON AREA:
NONE REQUIRED.
STORMWATER MANAGEMENT, THE SITE WILL DRAIN TO A PROPOSED SWW FACILITY, WHICH WILL PROVIDE
STORMW47ER QUANTITY TREATMENT, AND WILL OU7FALL TO THE STREAM BUFFER.
THE BEST MANAGEMENT PRAC77CE OF PURCHASING NUTRIENT CREDITS WILL BE
IMPLENTED TO SATISFY STORMWATER QUALITY REQUIREMENTS.
NOTE.•
1. STREET TREES SHALL BE PROVIDED ALONG THE PUBLIC STREETS 40' O.C. IN ACCORDANCE WITH VDOT
AND ALBEMARLE COUNTY STANDARDS.
2. 17E TRIP GENERATION: TRAFFIC IMPACT NUMBERS ARE BASED ON THE 17E TRIP GENERATION MANUAL,
107H EDITION FOR 5 SFD LOTS
AD RATE: 9.44 VPD/DU = 48 AD (24 EN7ER124 EXIT)
AM PEAK: 0.74 VPH/DU = 4 VPH (1 ENTER/ 3 EXIT)
PM PEAK. 0.99 VPH/DU = 5 VPH (3 ENTER/ 2 EXIT)
J. THIS PROPERTY IS NOT LOCATED WITHIN A DAM INUNDA77ON ZONE.
4. ALL NEW PUBLIC S7REET RIGHT-OF-WAY SHOWN HEREON SHALL BE DEDICATED TO THE COUNTY FOR
PUBLIC USE WITH THE SUBDIVISION PLAT.
5. RETAINING WALLS GREATER THAN X IN HEIGHT REQUIRE A SEPARATE BUILDING PERMIT WALLS
EXCEEDING 4' IN HEIGHT REQUIRE A STAMPED ENGINEERED DESIGN. WALLS CROSSING LOT LINES
REQUIRE AN EASEMENT. WALLS REQUIRE INSPECTIONS AS OUTLINED IN THE USBC.
6. ALL WATER LINES SEWER LINES AND FIRE LINES FROM THE MAIN TO THE S7RUCTURE MUST HAVE A
VISUAL INSPECTION PERFORMED BY THE BUILDING DEPARTMENT.
JARMANS GAP DEVELOPMENT
TMP 55M77A1
VSMP PLAN
(WPO 202100013)
WHITE HALL DISTRICT
ALBEMARLE COUNTY, VIRGINIA
GAP ROAD \ J
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SHEET LAYOUT
SCALE: 1" = 100'
GENERAL BUILDING DEPARTMENT NOTES:
1. WHERE THE FLOOD LEVEL RIMS OF PLUMBING FIXTURES ARE BELOW THE ELEVATION OF THE MANHOLE COVER OF
THE NEXT UPSTREAM MANHOLE IN THE PUBLIC SEWER, THE FIXTURES SHALL BE PROTECTED BY A BACKWATER
VALVE INSTALLED IN THE BUILDING DRAIN, BRANCH OF THE BUILDING DRAIN OR HORIZONTAL BRANCH SERVING
SUCH FIXTURES. PLUMBING FIXTURES HAVING FLOOD LEVEL RIMS ABOVE THE ELEVATION OF THE MANHOLE COVER
OF THE NEXT UPSTREAM MANHOLE IN THE PUBLIC SEWER SHALL NOT DISCHARGE THROUGH A BACKWATER VALVE.
2. DUE TO REQUIRED DISTANCES FROM LOT LINES AND STRUCTURES AS REQUIRED BY THE NFPA, UNDERGROUND
PROPANE TANKS MAY BE PROHIBITED. THE BUILDER/DEVELOPER SHALL PLAN ACCORDINGLY.
J. BUILDINGS OR STRUCTURES BUILT BEFORE JANUARY 1, 1985 MUST HAVE AN ASBESTOS SURVEY PERFORMED IN
ORDER TO APPLY FOR A DEMOLITION PERMIT. ASBESTOS REMOVAL PERMITS ARE REQUIRED IF POSITIVE FOR SUCH
FROM ALBEMARLE COUNTY AND VDOU. CONTACT VDOLI FOR THEIR ADDITIONAL REQUIREMENTS AND PERMITS FOR
DEMOLITION PROJECTS AT 540-562-3580x131.
APPROVED
by the Albemarle County
Community Development Department
Date 06/23/2021
File WP0202100013
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VICINITY MAP
SCALE: 1" = 2000'
Sheet List Table
Sheet Number
Sheet Title
i
COVER
2
EXISTING CONDITIONS
3
EROSION & SEDIMENT CONTROL NOTES, NARRATIVE & DETAILS
4
EROSION & SEDIMENT CONTROL PLAN
5A
EROSION & SEDIMENT CONTROL PLAN
5B
EROSION & SEDIMENT CONTROL PLAN
6
STORMWATER MANAGEMENT PLAN
7
STORMWATER MANAGEMENT DETAILS
8 TOTAL SHEETS
* 14RGINIA EROSION & SEDIMENT EROSION CONTROL HANDBOOK SPECIFICA77ON NUMBER CONTROL
SA
SAFETY FENCE
3.01
CE
0
CONSTRUCRON ENTRANCE
3.02
CR
CR
CONSTRUC77ON ROAD
3.03
SF
STABILIZA77ON
SILT FENCE
J.05
x X X-
lP
STORM DRAIN INLET PROTECTION
J.07
ClP
CULVERT INLET PR07EC77ON
3.08
DD
TEMPORARY DIVERSION DIKE
3.09
��
TEMPORARY RIGHT-OF-WAY
DIVERSION
3.11
~
SB
O
SEDIMENT BASIN
J.14
OP
OUTLET PROTECTION
3.18
RR
RIPRAP
J.19
TS
TS
TEMPORARY SEEDING
3.31
PS
PS
PERMANENT SEEDING
3.32
BM
BLANKET MAT77NG
3.36
DC
DC
DUST CONTROL
3.39
APPROVALS
DATE
DEPARTMENT OF COMMUNITY DEVELOPMENT
PLANNER/ZONING
ENGINEER
INSPECTIONS
ARB
DEPARTMENT OF FIRE RESCUE
ALBEMARLE COUNTY SERVICE AUTHORITY
VIRGINIA DEPARMENT OF TRANSPORTATION
HEALTH DEPARTMENT
COLLINS ENGINEERING IS NOT RESPONSIBLE OR LIABLE FOR ANY CONSTRUCTION OR DAMAGES TO
THIS PROJECT PRIOR TO ALL FINAL PLAN APPROVALS.
SCOTT/R. CRTLLINSZ
Lie. No. 0357911E
4/23/21�4
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JOB NO.
202192
SCALE
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SHEET NO.
2
EROSION & SEDIMENT CONTROL MEASURES:
STRUCTURAL EROSION AND SEDIMENT CONTROL PRACTICES SHALL BE IN ACCORDANCE WITH THE VIRGINIA
EROSION AND SEDIMENT CONTROL HANDBOOK. STRUCTURAL PRACTICES USED IN THIS SECTION CONSIST OF
THE FOLLOWING.
A PR07EC7711E BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CONTROL MEASURE. TO PROHIBIT THE
UNDESIRABLE USE OF AN EROSION CONTROL MEASURE BY THE PUBLIC. APPLICABLE TO ANY CONTROL MEASURE OR
SERIES OF MEASURES WHICH CAN BE CONSIDERED UNSAFE BY VIRTUE OF P07EN77AL ACCESS BY 774E PUBLIC.
3.02 CONSTRUCTION ENTRANCE:
A STABILIZED CONSTRUCTION ENTRANCE LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A
CONSTRUCTION SITE. TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR
VEHICLES OR RUNOFF. CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE
AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS.
3.03 CONSTRUCTION ROAD STABILIZATION:
THE TEMPORARY STABILIZATION OF ACCESS ROADS, SUBDIVISION ROADS, PARKING AREAS, AND 07HER SITE VEHICLE
TRANSPORTATION ROUTES WITH STONE IMMEDIATELY AFTER GRADING. TO REDUCE EROSION OF TEMPORARY
ROADBEDS BY CONSTRUCTION TRAFFIC DURING WET WEATHER AND TO REDUCE EROSION AND SUBSEQUENT REGRADING
OF PERMANENT ROADBEDS BETWEEN THE 77ME OF IN177AL GRADING AND FINAL STABILIZATION. USE WHEREVER
STONE -BASE ROADS OR PARKING AREAS ARE CONSTRUCTED, WHETHER PERMANENT OR TEMPORARY, FOR USE BY
CONSTRUCTION TRAFFIC.
305 SILT FENCE & SUPER SILT FENCE:
A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO
SUPPOR77NG POSTS AND ENTRENCHED, TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED
AREAS DURING CONSTRUCTION OPERA7ONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE, AND TO
DECREASE THE VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS THE SILT FENCE
BARRIERS SHALL BE INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF
FROM SHEET FLOW AS INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED
IN ACCORDANCE WITH 774E VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH).
3.07 STORM DRAIN INLET PROTECTION:
A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM DRAIN DROP INLET OR CURB INLET. TO
PREVENT SEDIMENT FROM ENTERING STORM DRAINAGE SYSTEMS PRIOR TO PERMANENT STABILIZA77ON OF THE
DISTURBED AREA. INLET PROTEC7ON APPLIES {MERE STORM DRAIN INLETS ARE TO BE MADE OPERA 77ONAL BEFORE
PERMANENT STABILIZA77ON OF THE CORRESPONDING DISTURBED DRAINAGE AREA.
3.06 CULVERT INLET PROTECTION:
A SEDIMENT FILTER LOCATED AT THE INLET TO STORM SEWER CULVERTS. TO PREVENT SEDIMENT FROM ENTERING,
ACCUMULATING IN AND BEING TRANSFERRED BY A CULVERT AND ASSOCIATED DRAINAGE SYSTEM PRIOR TO
PERMANENT STABILIZA77ON OF A DISTURBED PROJECT AREA. TO PROVIDE EROSION CONTROL AT CULVERT INLETS
DURING THE PHASE OF A PROJECT WHERE ELEVATION AND DRAINAGE PATTERNS CHANGE, CAUSING ORIGINAL CONTROL
MEASURES TO BE INEFFEC77VE OR IN NEED OR REMOVAL. WHERE CULVERT AND ASSOCIATED DRAINAGE SYSTEM IS
TO BE MADE OPERA7ONAL PRIOR TO PERMANENT STABILIZAT70N OF THE DISTURBED AREA.
3.09 TEMPORARY DIVERSION DIKE.,
A TEMPORARY RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA. TO
DIVERT STORM RUNOFF FROM UPSLOPE DRAINAGE AREAS AWAY FROM UNPROTECTED DISTURBED AREAS AND SLOPES
TO A STABILIZED OUTLET TO DIVERT SEDIMENT -LADEN RUNOFF FROM A DISTURBED AREA TO A SEDIMENT -TRAPPING
FACILITY SUCH AS A SEDIMENT TRAP OR SEDIMENT BASIN. USE WHEREVER STORMWATER RUNOFF MUST BE
TEMPORARILY DIVERTED TO PROTECT DISTURBED AREAS AND SLOPES OR RETAIN SEDIMENT ON SITE DURING
CONSTRUCTION. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 MONTHS OR LESS WHICH CAN BE
PROLONGED WITH PROPER MAINTENANCE.
3.11 TEMPORARY RIGHT-OF-WAY DIVERSION:
A RIDGE OF COMPACTED SOIL OR LOOSE ROCK OR GRAVEL CONSTRUCTED ACROSS DISTURBED RIGH7S-OF-WAY AND
SIMILAR SLOPING AREAS. TO SHORTEN THE FLOW LENGTH WITHIN A SLOPING RIGHT-OF-WAY, THEREBY REDUCING
THE EROSION P07EN77AL BY DIVERTING STORM RUNOFF TO A STABILIZED OUTLET. GENERALLY, EARTHEN DIVERSIONS
ARE APPLICABLE WHERE THERE WILL BE LITTLE OR NO CONSTRUCTION 7RAFFIC WITHIN THE RIGHT-OF-WAY. GRAVEL
STRUCTURES ARE MORE APPLICABLE TO ROADS AND OTHER RIGHTS -OF -WAY WHICH ACCOMMODATE VEHICULAR
TRAFFIC.
A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMWATER RELEASE STRUCTURE FORMED BY CONSTRUCTING
AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGE WAY. TO DETAIN SEDIMENT -LADEN RUNOFF FROM
DISTURBED AREAS IN "WET" AND 'DRY" STORAGE LONG ENOUGH FOR THE MAJORITY OF THE SEDIMENT TO SETTLE
OUT. APPLIES BELOW DISTURBED AREAS WHERE THE TOTAL CONTRIBUTING DRAINAGE AREA IS EQUAL TO OR
GREATER THAN THREE ACRES THERE MUST BE SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY FOR 774E
CONSTRUCTION OF A TEMPORARY IMPOUNDMENT.
STRUCTURALLY LINED APRONS OR 07HER ACCEPTABLE ENERGY DISSIPA77NG DEVICES PLACED AT THE OUTLETS OF
PIPES OR PAVED CHANNEL SEC77ONS. TO PREVENT SCOUR AT STORMWATER OUTLETS TO PR07ECT THE OUTLET
STRUCTURE, AND TO MINIMIZE THE P07EN77AL FOR DOWNS7REAM EROSION BY REDUCING THE VELOCITY AND ENERGY
OF CONCENTRATED STORMWATER FLOWS. APPLICABLE TO THE OUTLETS OF ALL PIPES AND ENGINEERED CHANNEL
SECTIONS.
319 RIPRAP:
A PERMANENT, EROSION -RESISTANT GROUND COVER OF LARGE, LOOSE, ANGULAR STONE WITH FILTER FABRIC OR
GRANULAR UNDERLINING. TO PR07ECT THE SOIL FROM THE EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW THE
VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING THE P07EN77AL FOR INFILTRATION, AND TO STABILIZE SLOPES
WITH SEEPAGE PROBLEMS AND/OR NON -COHESIVE SOILS. USE WHEREVER SOIL AND WATER INTERFACE AND THE
SOIL CONDITIONS, WATER TURBULENCE AND VELOCITY, EXPECTED VEGETATIVE COVER, ETC, ARE SUCH THAT THE SOIL
MAY ERODE UNDER THE DESIGN FLOW CONDITIONS.
THE ESTABLISHMENT OF A TEMPORARY VEGETA7VE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE
RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATON BY STABILIZING DISTURBED AREAS
THAT WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM
SEDIMENT AND RUNOFF TO DOWNSTREAM OR OFF-S17E AREAS, AND TO PROVIDE PR07EC77ON TO BARE SOILS
EXPOSED DURING CONSTRUCTION UN77L PERMANENT VEGETAT70N OR OTHER EROSION CONTROL MEASURES CAN BE
ESTABLISHED.
3.32 PERMANENT STABILIZATION.,
THE ESTABLISHMENT OF PERENNIAL VEGETA77VE COVER ON DISTURBED AREAS BY PLAN77NG SEED. TO REDUCE
EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO PERMANENTLY STABILIZE DISTURBED AREAS
IN A MANNER THAT IS ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, AND ALLOWS SELEC77ON OF THE MOST
APPROPRIATE PLANT MA7ERIALS TO IMPROVE WILDLIFE HABITAT TO ENHANCE NATURAL BEAUTY. UPON
COMPLE77ON OF CONSTRUC77ON ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT WGETA77VE COVER.
3.36 SOIL STABILIZATION BLANKETS & MATTING.
THE INSTALLAT70N OF A PR07EC77VE COVERING (BLANKET) OR A SOIL STABILIZA77ON MAT ON A PREPARED PLAN77NG
AREA OF A STEEP SLOPE, CHANNEL OR SHORELINE. TO AID IN CONTROLLING EROSION ON CRI77CAL AREAS BY
PROVIDING A MICROCLIMA7E WHICH PR07ECTS YOUNG VEGETA77ON AND PROM07ES ITS ESTABLISHMENT APPLIES ON
SHORT STEEP SLOPES WHERE EROSION HAZARD IS HIGH AND PLAN77NG IS LIKELY TO BE TOO SLOW IN PROVIDING
ADEQUATE PR07EC77VE COVER.
3.39 DUST CONTROL:
REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING DEMOL17ION AND CONSTRUCTION
ACTIVITIES. TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE
PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEAL 7H HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM
ANIMAL OR PLANT LIFE. DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT
OF DUST DURING CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE WSCH.
TABLE 331-A
LIMING REQUIREMENTS
FOR TEMPORARY SITES
Recommended Application 11
pH Test of Agdculnrral Limestone
DOW 4 2 Mow
I w 3 Per acre
4.2 To 5.2 2 tons per acre
52 to 6 1 ton per acre
I Sources Va. IDSWC
TABLE 3.31-B
ACCEPTABLE
TEMPORARY SEEDING PLANT MATERIALS
11
-QUICK REFERENCE FOR ALL REGIONS"
Rate
Planting Dates
,Species
lbs. acre
Sept. 1 - Feb. 15
50/50 Mix of
Annual Ryegrass
(Lolium multi-flomm)
&
50 - 100
Cereal (Winter) Rye
(Secale cereale)
Feb. 16 - Apr. 30
Annual Ryegrass
60 - 100
(Lolium multi-florum)
May 1 - Aug 31
German Millet
50
(Setaria italics)
Source: Va. DSWC
EROSION CONTROL NOTES:
1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE -CONSTRUCTION
CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK
PRIOR TO THE FINAL INSPECTION.
2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING
TO MINIMUM STANDARDS AND SPECIFICATIONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL
HANDBOOK AND VIRGINIA REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS.
J. ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST
STEP IN CLEARING.
4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE
SITE AT ALL TIMES.
5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES IN AREAS 07HER THAN INDICATED ON THESE
PLANS (INCLUDING, BUT NOT LIMITED TO, OFF -SITE BORROW OR WASTE AREAS), THE CONTRACTOR
SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND APPROVAL
BY THE PLAN APPROVING AUTHORITY.
6. THE CONTRACTOR IS RESPONSIBLE FOR INSTALLA7ON OF ANY ADD177ONAL EROSION CONTROL MEASURES
NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY 774E PLAN APPROVING
AUTHORITY.
7. ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL TIMES
DURING LAND DISTURBING AC771477ES AND DURING S17E DEVELOPMENT UN77L FINAL STABILIZATION IS
ACHIEVED.
8. DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED FILTERING DEVICE.
9. THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH
RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN 774E
EFFEC77VENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY.
10. ALL FILL MATERIAL TO BE TAKEN FROM AN APPROVED, DESIGNATED BORROW AREA.
11. ALL WASTE MATERIALS SHALL BE TAKEN TO AN APPROVED WASTE AREA. EARTH FILL SHALL BE INERT
MATERIALS ONLY, FREE OF ROOTS STUMPS, WOOD, RUBBISH, AND 07HER DEBRIS.
12. BORROW OR WASTE AREAS ARE TO BE RECLAIMED WITHIN 7 DAYS OF COMPLETION PER ZONING
ORDINANCE SEC77ON 5.1.28.
13. ALL INERT MATERIALS SHALL BE TRANSPORTED IN COMPLIANCE WITH SECT70N 13-JOl OF THE CODE OF
ALBEMARLE.
14. BORROW, FILL OR WASTE ACTIVITY INVOLVING INDUSTRIAL -TYPE POWER EQUIPMENT SHALL BE LIMITED
TO THE HOURS OF 7.• 00 AM TO 9: 00 PM.
15. BORROW, FILL OR WASTE ACTIVITY SHALL BE CONDUCTED IN A SAFE MANNER THAT MAINTAINS LATERAL
SUPPORT, OR ORDER TO MINIMIZE ANY HAZARD TO PERSONS, PHYSICAL DAMAGE TO ADJACENT LAND
AND IMPROVEMENTS, AND DAMAGE TO ANY PUBLIC STREET BECAUSE OF SLIDES, SINKING, OR COLLAPSE.
16. THE DEVELOPER SHALL RESERVE THE RIGHT TO INSTALL, MAINTAIN, REMOVE OR CONVERT TO
PERMANENT STORMWATER MANAGEMENT FACIL177ES WHERE APPLICABLE ALL EROSION CONTROL
MEASURES REQUIRED BY THIS PLAN REGARDLESS OF THE SALE OF ANY LOT, UNIT, BUILDING OR OTHER
PORTION OF THE PROPERTY.
17. TEMPORARY STABILIZA77ON SHALL BE TEMPORARY SEEDING AND MULCHING. SEEDING IS TO BE AT 75
LBS/ACRE, AND IN THE MONTHS OF SEPTEMBER TO FEBRUARY TO CONSIST A 50150 MIX OF ANNUAL
RYGRASS AND CEREAL WINTER RYE, OR IN MARCH AND APRIL TO CONSIST OF ANNUAL RYE, OR MAY
THROUGH AUGUST TO CONSIST OF GERMAN MILLET. S7RAW MULCH IS TO BE APPLIED AT 80LBS/100SF.
ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE EROSION CONTROL INSPECTOR.
18. PERMANENT STABILIZAT70N SHALL BE LIME AND FERTILIZER, PERMANENT SEEDING, AND MULCH.
AGRICULTURAL GRADE LIMESTONE SHALL BE APPLIED AT 90LBS11000SF, INCORPORATED INTO THE TOP
4-6 INCHES OF SOIL. FER77LIZER SHALL BE APPLIED AT 1000LBS/ACRE AND CONSIST OF A 10-20-10
NUTRIENT MIX. PERMANENT SEEDING SHALL BE APPLIED AT 180LBS/ACRE AND CONSIST OF 95X
KENTUCKY 31 OR TALL FESCUE AND 0 5X PERENNIAL RYGRASS OR KENTUCKY BLUEGRASS. STRAW
MULCH IS TO BE APPLIED AT 80LBS/100SF. ALTERNATIVES ARE SUBJECT TO APPROVAL BY THE
EROSION CONTROL INSPECTOR.
19. MAINTENANCE.- ALL MEASURES ARE TO BE INSPECTED WEEKLY AND AFTER EACH RAINFALL. ANY
DAMAGE OR CLOGGING TO STRUCTURAL MEASURES IS TO BE REPAIRED IMMEDIATELY. SILT TRAPS ARE
TO BE CLEANED WHEN 507 OF THE WET STORAGE VOLUME IS FILLED WITH SEDIMENT. ALL SEEDED
AREAS ARE TO BE RESEEDED WHEN NECESSARY TO ACHIEVE A GOOD STAND OF GRASS. SILT FENCE
AND DIVERSION DYKES WHICH ARE COLLEC71NG SEDIMENT TO HALF THEIR HEIGHT MUST BE CLEANED
AND REPAIRED IMMEDIATELY.
20. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE REMOVED WITHIN 30 DAYS
OF FINAL SITE STABILIZATION, WHEN MEASURES ARE NO LONGER NEEDED, SUBJECT TO APPROVAL BY
THE EROSION CONTROL INSPECTOR.
21. THE E&S INSPECTOR HAS THE AUTHORITY TO ADD OR DELETE E&S CONTROLS AS NECESSARY IN THE
FIELD AS S17E CONDITIONS CHANGE. IN ADDITION, NO SEDIMENT BASIN OR TRAP CAN BE REMOVED
WITHOUT WRITTEN AUTHORIZATION.
1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO
TRENCH UPSLOPE ALONG THE LINE THE POSTS.
OF POSTS.
FLOW
J. ATTACH THE FILTER FABRIC TO
THE WIRE FENCE AND EXTEND
lT INTO THE TRENCH.
4. BACKFILL AND COMPACT THE
EXCAVATED SOIL.
OEXTENSION OF FABRIC AND WIRE INTO THE TRENCH.
SUPER SIL T FENCE
ssF (WITH WIRE -BACK) 3.G5-2
COMPACTED SOIL � I� S' tmsnw
ter 10.
B ,It,(UM
0o TEMPORARY 18" DIVERSION BERM
GENERAL SLOPE (3:11 OR LFSS)
KENTUCKY 31 FESCUE 128 LBS.
RED TOP GRASS 2 LBS.
SEASONAL NURSE CROP 20 LBS.
SEASONAL NURSE CROP '-" ---
FEBRUARY 16 THROUGH APRIL ANNUAL RYE
MAY 1 THROUGH AUGUST 15 FOXTAIL MILLET
AUGUST 16 THROUGH OCTOBER ANNUAL RYE
NOVEMBER THROUGH FEBRUARY 15 WINTER RYE
NOTES:
1. LIME AND FERTILIZER NEEDS SHALL BE DETERMINED BY SOIL
TESTS AND APPLIED IN ACCORDANCE WITH VESCH STD. 3.32.
2. SEEDINGS TO BE MULCHED IMMEDIATELY UPON COMPLETION
OF SEED APPLICATION, IN ACCORDANCE W/ VESCH STD 3.35.
PS PERMANENT SEEDING SCHEDULE
NO SCALE
(STD. & SPEC. 3.32 OF VIRGINIA EROSION &
SEDIMENT CONTROL HANDBOOK, 3RD ED.)
DESCRIPTION OF EROSION & SEDIMENT
CONTROL MEASURES:
EROSION AND SEDIMENT CONTROL MEASURES:
IT IS ANTICIPATED TO USE A CONSTRUCTION ENTRANCE, RIPRAP, OUTLET PROTECTION, DIVERSION, A
SEDIMENT BASIN AND SILT FENCES TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL BE USED
IMMEDIATELY FOLLOWING ALL LAND DISTURBANCE ACTIVITIES. TEMPORARY STOCKPILE AREAS SHALL BE
DISCUSSED WITH THE ESC INSPECTOR AHEAD OF 77ME & WILL NEED TO BE MAINTAINED AND STORED FOR
LATER SPREADING. STOCKPILE LOCA71ONS SHALL BE ON S17E AND SHALL BE STABILIZED WITH A
TEMPORARY VEGETA7VE COVER. PERMANENT SEEDING WILL BE PERFORMED FOR ALL AREAS WHICH WILL
NO LONGER BE EXCAVATED AND WHERE CONSTRUCTION AC77077ES HAVE CEASED. PERMANENT SEEDING
SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR
MORE. SELECT70N OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED. TEMPORARY SEEDING
WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE THAN SEVEN
DAYS THESE AREAS SHALL BE SEEDED WITH FAST GERMINA77NG VEGETA77ON IMMEDIATELY FOLLOWING
GRADING OF THOSE AREAS. SELEC77ON OF SEED MIXTURE WILL DEPEND ON 774E 77ME OF YEAR APPLIED.
THESE MEASURES, AND 774E FOLLOWING, ARE PROPOSED:
3.01 SAFETY FENCE- TO DISCOURAGE ACCESS TO A PARTICULAR AREA.
3.02 CONSTRUCTION ENTRANCE - TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC
ROADS BY MOTOR VEHICLES OR RUNOFF.
3.03 CONSTRUCTION ROAD STABILIZATION - TO REDUCE THE EROSION OF TEMPORARY ROADBEDS BY
CONSTRUCTION TRAFFIC AND TO REDUCE THE EROSION AND SUBSEQUENT REGRADING OF PERMANENT
ROADBEDS BETWEEN THE TIME OF INITIAL GRADING AND FINAL STABILIZATION. CONSTRUCTION ROAD
STABILIZATION WILL BE APPLIED TO THE CONTRACTOR PARKING & STAGING AREAS AS NEEDED.
3.05 SILT FENCE- SILT FENCE IS PROPOSED WHERE SHOWN ON THE PLANS.
3.07 STORM DRAIN INLET PR07EC77ON - INLET PR07EC77ON IS PROPOSED WHERE SHOWN ON THE PLANS.
3.08 CULVERT INLET PR07EC77ON - CULVERT INLET PR07EC77ON IS SHOWN FOR THE PROPOSED CULVERT
ALLOWING FOR UPLAND OFFSITE RUNOFF TO PASS THROUGH THE CONSTRUCTION SITE.
3.09 DIVERSION- A PERIMETER DIVERSION IS PROPOSED WHERE SHOWN ON THE PLANS TO DIRECT RUNOFF
INTO A SEDIMENT TRAPPING DEVICE.
3.11 RIGHT OF WAY DIVERSION- A RIGHT OF WAY DIVERSION IS PROPOSED AT THE CONSTRUCTION
ENTRANCE.
3.14 SEDIMENT BASIN- A SEDIMENT BASIN IS PROPOSED WHERE SHOWN ON THE PLANS.
3.18 OUTLET PROTEC7ON-OU7LET PROTECTION IS PROPOSED AT THE OUTLET OF PIPES.
3.19 RIPRAP- RIPRAP IS PROPOSED AT THE OUTLET OF PIPES & IN VARIOUS 07HER LOCA77ONS WHERE
SHOWN ON THE PLANS.
3.32 PERMANENT SEEDING -PERMANENT SEEDING IS REQUIRED AND PROPOSED WITH THIS PLAN.
3.36 BLANKET MAT77NG - BLANKET MAT77NG IS PROPOSED FOR DISTURBED STEEP SLOPES.
3.39 DUST CONTROL -DUST CONTROL IS REQUIRED AND PROPOSED WITH THIS PLAN.
MAINTENANCE.•
IN GENERAL, DURING CONSTRUCTION THE RLD OR CONTRACTOR ON -SITE WILL CHECK ALL EROSION AND
SEDIMENT CONTROL MEASURES DAILY AND AFTER EACH SIGNIFICANT RAINFALL. MONITORING REPORTS WILL
BE REQUIRED FROM THE RLD IF NEEDED. SPECIFIC ATTENTION WILL BE GIVEN TO 774E FOLLOWING ITEMS.
a. SEDIMENT BASINS AND/OR TRAPS WILL BE CLEANED AND MAINTAINED IN ACCORDANCE WITH THE
VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK.
&ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP 774AT WILL PREVENT
PROPER DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT, THE GRAVEL WILL BE REMOVED AND
CLEANED, OR IT WILL BE REPLACED.
c.ALL SILT FENCE BARRIERS WILL BE CHECKED REGULARLY FOR UNDERMINING OR DETERIORATION OF THE
FABRIC AND REPAIRED AS REQUIRED. SEDIMENT SHALL BE REMOVED WHEN THE LEVEL OF SEDIMENT
DEPOSITION REACHED HALF WAY TO THE TOP OF THE BARRIER.
d.ALL SEEDED AREAS WILL BE CHECKED REGULARLY TO SEE THAT A GOOD STAND IS MAINTAINED.
AREAS SHOULD BE FER77LIZED AND RESEEDED AS NEEDED.
IN CASE OF EMERGENCY, THE PRIMARY CONTACT FOR THE PROJECT WILL BE THE RLD OR CONTRACTOR
ON -SITE 774E RLD's CONTACT INFORMA77ON CAN BE FOUND IN THE SWPPP, WHICH IS TO BE LOCATED
ONS17E AT ALL TIMES DURING CONSTRUCTION. IN ADDITION, THE OWNER MAY BE CONTACTED. UPON
COMPLE77ON OF THE PROJECT, THE OWNER WILL BE RESPONSIBLE FOR S17E MAINTENANCE.
EROSION CONTROL NOTES:
ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION AND SEDIMENT CONTROL
PRAC77CES WILL BE CONSTRUCTED AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND
SPECIFICA77ONS OF THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA
REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL REGULATIONS.
ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE PRE-CONS7RUC7ION
CONFERENCE, ONE WEEK PRIOR TO 774E COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE
WEEK PRIOR TO 774E FINAL INSPECTION.
ES-J.-ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR TO OR AS THE FIRST
STEP IN CLEARING.
ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE MAINTAINED ON THE
S17E AT ALL TIMES.
ES-5.-PRIOR TO COMMENCING LAND DISTURBING AC77077ES IN AREAS OTHER THAN INDICATED ON THESE
PLANS (INCLUDING BUT NOT LIM17ED TO, OFF-S17E BORROW OR WASTE AREAS), THE CONTRACTOR
SHALL SUBMIT A SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND
APPROVAL BY THE PLAN APPROVING AUTHORITY.
ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLAT7ON OF ANY ADD177ONAL EROSION CONTROL
MEASURES NECESSARY TO PREVENT EROSION AND SEDIMENTATION AS DETERMINED BY THE PLAN
APPROVING AUTHORITY.
ES-7.•ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL MEASURES AT ALL 77MES
DURING LAND DISTURBING ACTIVITIES AND DURING S17E DEVELOPMENT UN77L FINAL STABILIZA77ON IS
ACHIEVED.
ES-8:DURING DEW47ERING OPERATIONS, WATER WILL BE PUMPED INTO AN APPROVED WATER FILTERING
DEVICE.
ES-9: 774E CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES PERIODICALLY AND AFTER EACH
RUNOFF -PRODUCING RAINFALL EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE
EFFEC77VENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY.
SOIL DESCRIPTION.
SOILS ON-SITEARE CURRENTLYAS FOLLOWS'
7B-BR4DDOCK LOAM- 2 TO 7% SLOPES. SOIL IS WELL DRAINED WITH A MEDIUM RUNOFF CLASSIFICATION SURFACE LAYER
IS TYPICALLY LOAM AND ABOUT 0-8" THICK THE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80".
368-HAYESVILLE LOAM-2 TO 7% SLOPES. SOIL IS WELL DRAINED WITHA MEDIUM RUNOFF CLASSIFICATION. SURFACE
LAYER IS TYPICALLY LOAM AND ABOUT 0-7" THICK THE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80".
36C-HAYESVILLELOAM-7T015/o SLOPES. SOIL IS WELL DRAINED WITHA MEDIUM RUNOFF CLASSIFICATION SURFACE
LAYER IS TYPICALLY LOAMAND ABOUT 0-7" THICK. THE DEPTH TO THE WATER TABLE IS GENERALLY MORE THAN 80".
REFERENCE: WEB SOIL SURVEY ONLINE DATABASE, FOUND AThttp.//websoilsurvey.nres.usda.gov/app/WebSoilSurvey.aspx
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EROSION CONTROL NOTES do NARRATIVE. TH op�
PROJECT DESCRIPTION:
I
THE PURPOSE OF THIS LAND DISTURBANCE ACTIVITY IS TO CONSTRUCT 5 RESIDENTIAL LOTS AND THEIR ACCOMPANYING INFRASTRUCTURE THIS PLAN PROPOSES 5.19
(IAP_04/23/21
oc. OF LAND DISTURBANCE. THE PROJECT WILL BEGIN ITS CONSTRUCTION WITH THE PROPOSED ESC MEASURES FOLLOWING PLAN APPROVAL, WHICH IS ANTICIPATED TO ✓�
BE IN THE SUMMER OR SPRING OF 2021. THE WORK IS ANTICIPATED TO BE COMPLETED WITHIN 24 MONTHS AND TO CONCLUDE IN THE SUMMER OR SPRING OF 2023. R. LLINSZ
1
EXISTING SITE CONDITIONS: No. 035791 a
THE PROPOSED DEVELOPMENT IS LOCATED ON A PARCEL WITH EXISTING DEVELOPMENT. THE EXIS77NG DEVELOPMENT CONSISTS OF A PRIVATE DRIVEWAY, RESIDENCE
AND WALKWAYS. SURROUNDING THESE AREAS ARE OPEN SPACES WITH TREES DOTTING THE PROPERTY. THE GROUNDCOVER IS PREDOMINATELY GRASS WHERE rs4i
IMPERVIOUS AREAS ARE NOT PRESENT. THE S17E IS GENERALLY SITUATED ON A SLOPING PARCEL THAT DRAINS FROM THE NORTHWEST TO THE SOUTHEAST. THE S17E
�
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AS A WHOLE IS WELL DRAINED.
ADJACENT AREAS.'
THIS S17E /S BORDERED TO THE SOUTH AND WEST BY CREEKSIDE, TO THE NORTH BY JARMANS GAP ROAD AND TO THE EAST BY A PRIVATE RESIDENCE AND
ANOTHER SECTION OF CREEKSIDE. SILT FENCE WITH WIRE BACKING, A DIVERSION AND A SEDIMENT TRAP WITH VARIOUS OTHER ESC MEASURES ARE PROPOSED TO
LIMIT THE POTENT/AL FOR CONTAMINATION OF THESE ADJACENT PROPERTIES.
OFFS17E LAND DISTURBANCE.•
OFFSITE LAND DISTURBANCE IS LIMITED TO PUBLIC RIGHT-OF-WAY AND EASEMENTS
SOILS.•
SEE SOIL DESCRIPTIONS ON THIS PAGE, AND THE PHASE l ESC PLAN FOR THE BOUNDARIES.
CRITICAL AREAS:
THE PROPER77ES BORDERING THIS DEVELOPMENT AND THE ONS17E STREAM BUFFER LABELED ON THESE PLANS ARE CONSIDERED TO BE CRI77CAL AREAS. THE
CONTRACTOR SHALL GIVE EXTRA ATTENTION AND CAU77ON /N AND AROUND THESE AREAS TO ENSURE SEDIMENT IS NOT DEPOS17ED ON THEM OUTS/DE THE SCOPE OF
THE PROPOSED PLAN. SILT FENCING, A DIVERSION AND A SEDIMENT TRAP SHALL ALSO BE INSTALLED AS A FIRST STEP IN LAND DISTURBANCE TO ENSURE THESE
CRITICAL AREAS ARE MAINTAINED.
SEQUENCE OF CONSTRUCTION:
1. CONTRACTOR SHALL NOTIFY THE ALBEMARLE COUNTY EROSION AND SEDIMENT CONTROL DEPARTMENT TO SCHEDULE A PRE -CONSTRUCTION MEETING.
2. PRIOR TO DISTURBANCES THE LIMITS OF DISTURBANCE SHALL BE FLAGGED.
3. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT
4. INSTALLATION OF THE PROPOSED CONSTRUCTION ENTRANCE SHALL OCCUR NEXT. THE CONTRACTOR SHALL APPLY CONSTRUCTION ROAD STABILIZA77ON AS
NEEDED TO THE SURROUNDING AREA AND THE EX/STING DRIVEWAY BEING USED FOR THE CONTRACTOR PARKING & STAGING AREA. CONTRACTOR SHALL ENSURE
THE CONSTRUCTION ENTRANCE AND PARKING AREA ARE PROPERLY GRADED AND DRAIN TO AN ADEQUATE E&S MEASURE AFTER THE ENTRANCESs INSTALLATION
z
(i.e. THE WIRE BACKED SUPER SILT FENCE, CONSTRUCTION ENTRANCE SEDIMENT TRAP AND SEDIMENT TRAP A). CONSTRUCTION ENTRANCE TO BE INSTALLED
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WHERE CONSTRUCTION VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY
F
d
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(VEHICULAR) TRACKING ONTO THE PAVED SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED
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THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTING TO A SEDIMENT
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CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER.
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5. THE INITIAL ESC CONSTRUCTION MEASURES, AS SHOWN ON THE PHASE / EROSION & SEDIMENT CONTROL PLAN, SHALL BE INSTALLED NEXT. THE CONTRACTOR
V)
a
SHALL BEGIN BY INSTALLING THE PERIMETER SILT FENCE. ONCE THE PERIMETER EROSION CONTROL MEASURES HAVE BEEN INSTALLED, AND THE COUNTY
"
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INSPECTOR HAS APPROVED THESE MEASURES, THE CONTRACTOR SHALL PROCEED TO LIGHT CLEARING OF THE SITE AND/OR AREAS APPROVED BY THE
V)
INSPECTOR FOR CUT REQUIRED FOR THE SEDIMENT TRAP's INSTALLATION. THE CONTRACTOR SHALL BEGIN BY CLEARING THE AREAS REQUIRED TO ACCESS THE
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LOCATION OF SEDIMENT TRAP A'. PERIMETER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE
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ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE.
6. ONCE THE PER/METER EROSION CONTROL MEASURES HAVE BEEN INSTALLED AND THE SELECTIVE CLEARING IS COMPLETE, THE CONTRACTOR SHALL INSTALL
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SEDIMENT BASIN A' AND 774E PERMANENT STRUCTURES N07ED ON THE ESC SHEETS (TO AVOID FUTURE DISTURBANCES TO 774E FACILITY & EMBANKMENT).
7. THE CONTRACTOR SHALL BEGIN DEMOLISHING ANY EXISTING ONS17E STRUCTURES NOT PROPOSED TO REMAIN NEXT. THE CONTRACTOR SHALL PAY SPECIAL
AT7EN77ON TO THE ONS17E CULVERTS BENEATH THE EXIS77NG DRIVEWAY AND SHALL NOT ABANDON THESE UNTIL 774EY ARE NO LONGER NECESSARY, AS NOTED
ON 774E ESC PLAN SHEETS. TEMPORARY SEEDING, PERMANENT SEEDING AND DUST CONTROL SHALL BE IMPLEMENTED AS REQUIRED.
8. ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THE PHASE l EROSION CONTROL PLAN SHALL ALSO BE CONSTRUCTED AT THIS TIME.
9. ONCE ALL THE PHASE l EROSION CONTROL ITEMS HAVE BEEN INSTALLED & ARE OPERATIONAL, DRAINAGE IS PROPERLY CONVEYED TO THESE MEASURES, 774E
STRUCTURES SLATED FOR DEMOL177ON HAVE BEEN REMOVED AND THE ESC INSPECTOR HAS GRANTED APPROVAL, THE CONTRACTOR CAN PROCEED TO ESC
PHASE It.
10. IN ESC PHASE ll THE CONTRACTOR SHALL INSTALL THE PROPOSED CULVERT AND ITS CULVERT INLET PR07EC77ON. THIS NEW CULVERT WILL REPLACE 774E
EXISTING DOUBLE CULVERTS AND WILL ALLOW FOR THE OFFS17E UPLAND CLEAN WATER TO BE DIVERTED THROUGH THE CONSTRUCTION SITE WITHOUT
CONTAMINATION.
11. AFTER THE INSTALLATION OF 774E NEW CULVERT THE CONTRACTOR CAN FINISH CLEARING THE SITE. TEMPORARY SEEDING, PERMANENT SEEDING AND DUST
CONTROL SHALL BE IMPLEMENTED AS REQUIRED.
12. ANY REMAINING EROSION CONTROL ITEMS AS SHOWN ON THE PHASE ll EROSION CONTROL PLAN SHALL ALSO BE CONSTRUCTED AT THIS TIME.
13. ONCE ALL THE PHASE ll EROSION CONTROL 17EMS HAVE BEEN INSTALLED & ARE OPERATIONAL, DRAINAGE IS PROPERLY CONVEYED TO THESE MEASURES, AND
THE ESC INSPECTOR HAS GRANTED APPROVAL, THE CONTRACTOR CAN PROCEED TO ESC PHASE Ill. TEMPORARY SEEDING, PERMANENT SEEDING AND DUST
CONTROL SHALL BE IMPLEMENTED AS REQUIRED.
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14. THE CONTRACTOR SHALL BEGIN ESC PHASE N BY INSTALLING THE NORTHERN CLEAN WATER DIVERSION, WHICH REDIRECTS UPLAND OFFS17E RUNOFF TO THE
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RECENTLY INSTALLED SIR. 6. THIS WILL PREVENT OFFSITE CLEAN RUNOFF FROM ENTERING THE CONSTRUC77ON SITE FOLLOWING THIS, THE CONTRACTOR SHALL
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INSTALL THE SOUTHEASTERN MOST DIVERSION. THE DIVERSIONS SHALL MAINTAIN POSITIVE DRAINAGE AT ALL TIMES THROUGHOUT CONS7RUC710N.
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15. UPON INSPECTOR APPROVAL, THE CONTRACTOR SHALL THEN BEGIN ROUGH GRADING THE S17E TO THE CONTOURS SHOWN ON THE PHASE 111 EROSION &
SEDIMENT CONTROL PLAN. AS THE SITE /S GRADED, THE SOUTHWESTERN MOST DIVERSION SHALL BE INSTALLED TO DIRECT ITS UPLAND AREAS TO SEDIMENT
BASIN A: MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP WITH ANY LAND DISTURBANCE AC77VITY AND SHALL BE MADE
FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE.
16. ONCE THE SITE /S ROUGH GRADED AND 774E RUNOFF /S PROPERLY DIRECTED TO THE APPROVED SEDIMENT TRAPPING DEVICES, THE CONTRACTOR CAN BEGIN
INSTALLA77ON OF THE UTILITIES, CURB AND GUTTER AND STORM SEWER. INLET PR07EC77ON SHALL ALSO BE INSTALLED AS 774E STORM SEWER IS CONSTRUCTED.
L9
INLET PR07EC77ON SHALL BE INSPECTED AFTER EACH RAINFALL EVENT AND REPAIRS SHALL BE MADE AS NEEDED. /F 774E STONE FILTER BECOMES CLOGGED
W7774 SEDIMENT SO 774AT IT NO LONGER ADEQUATELY PERFORMS ITS FUNCTION, 774E STONE MUST BE PULLED AWAY AND CLEANED AND/OR REPLACED.
17. FOLLOWING THE INSTALLA7ON OF THESE ITEMS, 774E CONTRACTOR MAY ELECT TO APPLY THE ROAD's STONE SUBGRADE FOR ADDITIONAL ESC COVERAGE. 774E
TIMING OF THE CONSTRUCTION OF 774E STONE SUBGRADE WILL UL77MATELY BE DICTATED BY 774E CONTRACTOR AND HIS SCHEDULES. DUE TO THE NATURE OF
THE PROPOSED PERIMETER ESC MEASURES, IT IS POSSIBLE THAT THE CONTRACTOR MAY ELECT TO DELAY 774E CONSTRUCTION OF THE STONE SUBGRADE UN77L
AFTER LOT CONSTRUCTION HAS PROGRESSED FURTHER. 774E HOME BUILDER SHALL WORK CLOSELY WITH 774E ESC INSPECTOR AT THE TIME OF THE INDIVIDUAL
LOT's CONSTRUCTION. DOWNGRADE SUPER SILT FENCE SHALL BE INSTALLED ON EACH INDIVIDUAL LOT (BY THE HOME BUILDER) CONFORMING TO THE UNIQUE
HOME's F007PRINT & LOCATION.
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18. THE CONTRACTOR SHALL INSTALL ANY REMAINING EROSION CONTROL 17EMS AS SHOWN ON THE PHASE III EROSION CONTROL PLAN. TEMPORARY SEEDING,
PERMANENT SEEDING AND DUST CONTROL SHALL BE IMPLEMENTED AS REQUIRED.
--
19. ONCE ALL THE PHASE //I EROSION CONTROL ITEMS HAVE BEEN INSTALLED & ARE OPERATIONAL, DRAINAGE /S PROPERLY CONVEYED TO THESE MEASURES, AND
THE ESC INSPECTOR HAS GRANTED APPROVAL THE CONTRACTOR CAN BEGIN PHASE IV OF THE EROSION & SEDIMENT CONTROL PLAN.
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20.774E CONTRACTOR CAN BEGIN INSTALLATION OF THE STONE SUBGRADE IF IT HASN'T ALREADY BEEN APPLIED, FOLLOWED BY THE ASPHALT PAVING.
21.TOWARDS THE END OF ESC PHASE IV, AND AFTER ALL 07HER PHASE IV ESC MEASURES HAVE BEEN INSTALLED, THE CONTRACTOR SHALL CONVERT TEMPORARY SEDIMENT BASIN
A' TO THE PROPOSED PERMANENT SWM FACILITY. AT THIS 7/ME, THE CONTRACTOR SHALL REMOVE SEDIMENT LADEN MA7ERIAL & BACKFILL THE AREA WITH STRUCTURAL FILL TO
THE GRADES SHOWN ON THE STORMWATER MANAGEMENT SHEETS THE CONTRACTOR SHALL ALSO INSTALL THE PERMANET SWM FACILITY's RISER, RISER FOUNDATION, OUTLET INTO
III
SIR. 6 AND REMOVE THE TEMPORARY BLOCKAGE /N SIR. 6 ALLOWING FOR THE OUTLET OF THE RISER TO D/SCHAGE INTO SIR. 6. SEDIMENT BASIN il' SHALL NOT BE MODIFIED
UN77L THE ESC INSPECTOR HAS GRANTED APPROVAL AND 17S UPLAND WATERSHED IS STABILIZED. THE CONTRACTOR SHALL PAY SPECIAL ATTENTION TO THE SILT FENCE
BENEATH THIS AREA AT THIS TIME AND ENSURE IT CONTINUES TO BE EFFECTIVE.
22. FOLLOWING THE CONVERSION OF THE BASIN, THE STABILIZA77ON OF THE PROPOSED SWIM FACILITY & ITS SURROUNDING AREAS, ALL OF PHASE IV CONSTRUCT70N IS COMPLETE
LL
THE SITE /S STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL THE CONTRACTOR CAN COORDINATE THE TIMING OF THE REMOVAL OF THE REMAINING
EROSION & SEDIMENT CONTROL MEASURES NO 17EM SHALL BE REMOVED, THROUGHOUT ALL PHASES OF CONSTRUCTION, UNLESS THE UPSTREAM AREAS ARE
STABILIZED AND THE INSPECTOR GIVES PERMISSION.
23.PERMANENT OR TEMPORARY SOIL STABILIZA77ON SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL GRADE IS REACHED ON ANY POR77ON
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OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL
REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. PERMANENT STABILIZA77ON SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR
MORE THAN ONE YEAR.
24.THE CONTRACTOR SHALL MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK, REMOVING
IIIIIIIIIIIIIIIIIIIIIII
ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK.
25.ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY
MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHOR/ZED BY THE LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL
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AREAS RESUL77NG FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION.
-
GRAVEL CURB INLET SEDIMENT
CONSTRUCTION
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i- POSITIVE DRAINAGE
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RUNOFF WATER WIRE MESH
FILTERED WATER
EXTEND FULL WDTH GA TO SEDIMENT
OF 114GRESS AND EGRESS
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CURB INLET
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SPECIFIC APPLICATION
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ples�lve Wash Wain 11111A IN: Caused ,1%%a% tioul tile eub,"Itc To all
WHERE PONDING IN OF • TO CAUSE
FRONTLkIl"taill
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INCONVENIENCEOR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED
• OR 5 COARSE
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JOB NO.
202192
AS SHOWN I
3
PHASE I ESC PLAN, SCALE T"=3o
ti G APHIW,.SCALE
MATCHLINE,
SEE SHEETS SA&5B 30 ;0 60
FOR FULL LIMITS OF = = L:�
DISTURBANCE & SSF \
/ ( IN FEE /
/ 1 inch = 30 ft.
�SDIL BOUNDARY, C - -
TYP.I C / /
W0� / \
WM / \
LOCATION O \
15cy DUMPSTER \
LOCATION OF FUELING AREA
THE FUELING TANK SHALL BE COMPLETELY SURROUNDED BY A 2' \
I W DEEP, 2' WIDE EARTHEN BERM WITH A HEAVY MIL POLYETHYLENE O
Z \ \ INING, OR BE PLACED IN AN IMPERVIOUS OPEN -TOP DUMPSTER. PROPOSED PAVED CONSTRUCTION ENTRINCONTRACTO
(12'x70' MIN.) WITH WASH RACK. CE TO DRAINTHE PROPOSED BERM OR DUMPSTER SHALL CONTAIN FUEL IN THE HALL
7 z \ \ DOWN GRADIENT SEDIMENT TRAP TO TREATEVENT OF A SPILL. CONTRACTOR SHALL ENSURE VOLUME CAPACITY RAN
IS-10°!0_LARGER THAN THE MAXIMUM VOLUME OF STORED FUEL. FLASH RUNOFF FROM VEHICULAR WASHOFF. ROSS_ -POCOISED LIMITS OF DISTURBANCENCIDES-WITH-PROP TY LINE CONTRACTOR SHALL UTILIZE TJiE_CTION
f5 CRS EXISTING-(SNEWAY FORA _°'LOCATIOOFRAN
RKING &STAGING AREA
PORTA-POTTY-
\
- - /
RP
- -
DEC - ORA VEL-
O -- -- -�
VG O 24" CMPx2
CONTRACTOR -SHALL I THE PH SE I CQNTRA - CILITY's- BANKMENT,
ESC-PLAN BY INSTALLING THE _ --- - EMERGENC STR. 57�TR-fi &_DAJpt FOR�TR.
CONSTRUCT -ION TALL(ENTRNCE, PE PH
- - / �EDk1MENT BASIN 'ADO PREVENT FUTURE DISTURBANCES. THE CONSTRUCTION OF
SUPER SILT FENCE & SEDIMENT -TRAP:-. .-G_ THE SWM FACILITY's RISER, ITS FOUNDATION &ITS OUTFACE INTO STR. 6 SHALL \12" PE \ I
FURTHER C-LEARING, GRADING AND G \ BE DELAYEQUNTIL THE BASIN IS CONVERTED TO A PERMANENT FACILITY. THE I
_ I IT°c \ SWM FACIE s OUTFALL INTO-STR.-6 HHALL BE TEMPORARILY SEALED \
DEMOLITION BEYOND THAT REQQUIR� OR � _ O
WATERTIGHT DURING CONSTRUCTION TO PREVENTSFORT-CIRCUITING 0f` --- \ \ \
THESEIN TSTALLATIONS SHALL NOT OCC R EV(�
UNTIL APPROVE HE-ESCINSPECTOR: RUNOFF.-STR. 6 SHAL E CONS RUCTED WITH SEGMENTAL RINGS SO THAT IT \ I
- CAN BE UTILIZED A'S'A TEMPORARY RISER DURING CONSTRUCTION.
SOILlyl
O TR.6 36C I
I
- \ POND
1 \
A S ASs
PROPOSED LIMITS OF is Ass -
DISTURBANCE, TYP. I PRPOSED SAFETY FENCE, SEDIMENT 'X \
S INSTALL SIGNS "WARNING ''1 BASIN 'A' \ ROPOSED STOCKPILE PROPOSED SF I
(QUICK SAND, KEEP OUT" \ \ SURROUNDED BY WITH WIRE,
SILT FENCE \ BACKING
SEDIMENT BASIN 'A' DETAIL, SCALEi"=30'
\
PROPOSED -SA
INSTALL SIGN;
QUIC SAND,
STR. 6 SHALL BE INSTALLED WITH
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SEGMENTAL RINGS SO THAT THE
\
INNER 048" BASE CAN BE
TEMPORARILY USED AS A RISER
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FOR SEDIMENT BASIN W. THE
\
UPPER SEGMENTAL RING(s) SHALL
HAVE A RIM ELEV.=735.25' &
SHALL CONTAIN THE DEWATERING
ORIFICE (04" INV.=732.86. AT THE
TIME OF THE BASIN's CONVERSION
TO A PERMANENT FACILITY THE
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UPPER SEGMENTAL RINGS SHALL
\
BE REMOVED &THE REMAINDER OF
STR. 6 SHALL BE INSTALLED.
\
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PROPOSED PERMANENT SWM FACILITY's RIPRAP LINED OUTLET PROTECrION, STR. 5
\ AND STR. 6's BASE & FOUNDATION SHALL BE CONSTRUCTED WITH SEDIMENT BASIN'A' TO
\ LIMIT FUTURE DISTURBANCES. THE OPENING IN STR. 6 FOR THE SWM FACILITY's OUTFALL
SHALL BE TEMPORARILY SEALED WATERTIGHT UNTIL THE ESC INSPECrOR APPROVES THE
�44\CONVERSION OF SEDIMENT BASIN'A' TO A PERMANENT SWM FACILITY. AT THE TIME OF
THE CONVERSION, THE CONTRACTOR SHALL REMOVE SEDIMENT LADEN MATERIAL AND
REGRADE THE BASIN & SURROUNDING AREA TO THE PROPOSED CONTOURS SHOWN ON
E STORMWATER MANAGEMENT PLANS.
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POND
PR POSED SUPER
1ILT FENCE 'I
is Ass $
I I PROPOSED 25' WIDE VDOT CL. Al RIPRAP LINED II TOP OF \ \
EMERGENCY SPILLWAY w/ 4:1 SIDE SLOPES & CREST DAM ELl-738.0' \
�1 ELEV.=736.67'. AT THE TIME OF THE BASIN's \ \
f CONVERSION TO AIPERMANENT SWM FACILITY, THE \ \
CONTRACTOR SHALL ENSURE ALL FINAL GRADES AND
ELEVATIONS SHOWN, ON THE SWM SHEETS ARE MET. \
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PHASF II FCr PI Am crn,
MATCHLINE,
SEE SHEETS SA & 5B
FOR FULL LIMITS OF
DISTURBANCE & SSF
SOIL BOUNDARY,
TYP.�
/
WM
C)T
APHI.SCALE
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IN FEET )
_ 1 inch = 30 ft.
C /
/
LOCATION OF
_ - 15cy DUMPSTER
��- LOCATION OF FUELING AREA
\ THE FUELING TANK SHALL BE COMPLETELY SURROUNDED BY A 2'
I W m O \ \ DEEP, T WIDE EARTHEN BERM WITH A HEAVY MIL POLYETHYLENE
Z ¢ F �\ \ \ INING, OR BE PLACED IN AN IMPERVIOUS OPEN -TOP DUMPSTER.
_ '^ n THE PROPOSED BERM OR DUMPSTER SHALL CONTAIN FUEL IN THE
EVENT OF A SPILL. CONTRACTOR SHALL ENSURE VOLUME CAPACITY
THAN THE MAXIMUM VOLUME OF STORED FUEL.
PROPOSED LIMITS OF DISTURBANCE
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O COINCIDESir4IfH-PROPERRTY LINE
°-LOCATION OF V ` -
PORTA-POTTY -
C / /
- - - - -
`�
CONTRACTOR SHALL -
O \ --- '�__ ABANDON EXISTING
CULVERT IN ESC O
PHASE III WHEN THIS EVG
_ AREA IS GRADED.
COCTOR SHALL -INSTALL THE
\ STR. UILVERT,6,IN ES CONNECTING
- INTO STR. 6, IN ESC PHASE II TO----
DIVERT CLEANWATERFROM
UPLANR,_,?FFSITE PROPERTIES
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O \\
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\ \
A S Ass -
rimu ED LIMITS OF
-I
DISTURBANCE, TYP.
PROPOSED RIPrP
LINED OUTLE
I PROOPOSED SAFETY FENCE 1 SEDIMENI
S IN ALL SIGNS "WARNING BASIN W
PROTECTION(
I (QUICK SAND, KEEP OUT"
PROPOSED PAVED CONSTRUCTION ENT NC
(12'00' MIN.) WITH WASH RACK. CE TO DRAIN TO
CONTRALTO SHAL
DOWN GRADIENT SEDIMENT TRAP TO TREAT
W
FLASH RUNOFF FROM VEHICULAR WASHOFF.
CONTRACTOR SHALL THE \
TALL A R/
ION
ION ACROSS
AYUTILIZE
FOR
CRS EXISTING�RIVEWAY FOR A -�- ----- --__
PARKING & STAGING AREA
TRAN -,
1 --- - t;
PFl 41
24" CMPXZ \ - WASHOUT ARE
-CON-TRACTOR SHALL ��\ `' , I
TE CULVERTS IN ESC PHASE 1'
II (AFTER THE PROPOSED \12" PE
CULVERT IS INSTALLED
DIVERTING THE UPLAND, \ I Y
OFF -SITE -RUNOFF) EVSOIL
TYPE
I
36C
I I
s' L I
),P�B 7
:c �sqq q A55 \ 1 s I
\ \ PROPOSED STOCKPILE PROPOSED SF I IS
\ SURROUNDED BY WITH WIRE SS
SILT FENCE\ BACKING \
Sediment Basin Design A
MIN. T WISPIl
2'WITHOUT
CREST OF EMERGENCY
SPILLWAY
drainage area (acres)
3.45
DESIGN HIGH WATER
basin volumes: (using 2' contour intervals)
(2s-Y STORM
elevation (ft) contour area (sf)
volume (cy)
O3'
MIN. 1.0-
_ __ _
:::
PoSER CREST
728 719
0
1 STCR*GE
oEWRTEPoNC
DEVICE
729 836
29
. STOKE
730 961
62
731 1350
105
732 1902
165
SEpMFM ttF PoINi
(
TO 34 C.Y./�ERREIEWCED
733 2307
242
734 2751
336
735 3238
447
736 3768
576
737 4339
726
738 4955
898
wet storage:
wet storage required (cy) 1
231
design high water
736.25
dewatering orifice elevation (ft)
732.86
top of dam (ft)
738.00
wet storage provided at this elevation (cy)
105
top width of dam (ft)
10.0
available volume before cleanout (cy) (34*DA)
117
bottom of basin (ft)
728.0
cleanout elevation (ft)
731.18
approx bottom dimensions:
22'X38'
distance from cleanout to orifice (ft) (> V)
1.7
upstream face slope:
Varies
downstream face slope:
3:1
dry storage:
dry storage required (cy) (67*DA)
231
baffles:
YES
principle spillway crest (ft)
735.25
length of flow, L (ft)
40
dry storage provided at this elevation (cy)
248
effective width, We (ft)
83
diameter of dewatering orifice (in)
4.0
L / We (baffles required if < 2)
0.5
diameter of flexible tubing (in) (orifice+2")
6.0
collars:
YES
runoff:
depth of water at spillway crest (ft)
7.25
C (use 0.45 for bare earth)
0.45
slope of upstream face (Z1)
Varies
tc (min)
8
slope of barrel (Sb)
5.35%
1 2yr 4.5 Q 2yr
7.0
length of barrel in saturated zone (Ls)
55.35
1 25yr 6.5 Q 25yr
11.1
number collars required
2
dimension of collars
4.6x4.8'
principle spillway:
available head (ft)
1.00
emergency spillway:
YES
diameter riser (in)
48
required capacity (Q25-Qp) (cfs)
0.0
spillway capacity, Qp (cfs)
11.1
bottom Width (ft)
25
diameter trash rack (in)
72
slope of exist channel (fVft)
33%
barrel length (ft)
91.91
minimun length of exit channel (ft)
6
head on barrel through embankment (ft)
10.0
crest of spillway (ft)
736.67
diameter of barrel (in)
24
Lie. No. 0357911E
4/23/21 �4
15'lOnrnt. 8�01
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JOB NO.
202192
SCALE
1"=30'
SHEET NO.
4
PHASE III ESC PLAN, SCALEi"=30'
. I I
\ I \ I I
to to go
40
moo
\\ I \ \ \\� I♦ \ \ / —— — — — — — — — — —
Ij
\\ \ \\\ IIF
-- — -- \ 77 — — — / ' GRAPHIC SCALE
/ o o a 60
IN FAT__ - — —
\ \ V 76 76 Tinch - 30 ft.
C \
\ , \ MATCHLINE, SEESHEETy
\ SOIL BOUNDAR) V A \
\ ` TYP.
/
\I
44*1
\ / /
LOCATION OF \ \
_L—T,
O16cy DUMPSTER v
\ \ nll�
LOCATION OF FUELING AREA LLI THE FUELING TANK SHALL BE COMPLETELY SURROUNDED BY A 2'
z �DEEP, 2' WIDE EARTHEN BERM WITH A HEAVY MIL POLYETHYLENEINING, OR BE PLACED IN AN IMPERVIOUS OPEN -TOP DUMPSTER. PROPOSED CLEAN WATER PROPOSED PAVEDSOILTHE PROPOSED BERM OR DUMPSTER SHALL CONTAIN FUEL IN THE CONSTRUCTION ENTRAN
GGEECE
TYPE \ \ \ EVENT OF A SPILL. CONTRACTOR SHALL ENSURE VOLUME CAPACITY DIVERSION TO NEW CULVERT, DIRECTING OFFSITE UPLAND (12'x7O'MIN.) WITH WASH\
\ - •--IS--10°lo1ARGER THAN THE MAXIMUM VOLUME OF STORED FUEL U RACK. CE TO DRAIN TO DOWN \Q
- - 36B Q ' - -----
RUNOFF THROUGH THE PROPERTY. ENT y�
P O�POSED LIMITS OF DISTURBANCE CONTRACTOR SHALL i_NSURE _ _G- - FLASH
RAP TO �\
COINCIDES- R PROPERTY LINE POSITIVE SLOPE IS MAINTAINED. -
TREATFROM
-�COCATION OF / — - --- ---- ____ - - VEHICULAR WASF�OFF� i
\ -~1 SEDIMENT BASIN , PORTA-POTTY \
\ DRAINAGE \ _
\ 1 \ DIVIDE, A'R.
\ V __ A
PROPOSED 18" DIVERSION. SEDIMENT
\ _ — - CONTRACTOR SHALL BASIN'A'
— -- _ ENSURE POS I�YI ESCAPE IS DA=3.45 aC.
\ h MAINTA7�ED. BERM SHALL
Ass As dss Jss iss Jss Ass iss AS iss dss Uss Ass ---iss ` ASS Jss - BE STABILIZED AS -A FIRST \ �'
STEP IN DISTURBANCE.
\ PROPOSED SF SOIL \ \
WITH WIRE S _ — — -TYPE \ — - 746' \ \
BACKING— 36C
146
— 747DO C L— — -- - -�---
i
Wl
732
�-
- —
\ SS PROPOSED
WIRE / —dss _ As� PROPOSED SF / d
BACKING iss — ITH'WIRE \ x V \
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PROPOSED LIMITS OF
/ DISTURBANCE, TYP. I PR POSED SAFETY FENCE, SEDIMENT PROPOSED " DIVPOSITIVE SLOPE
PROPOSED RIPf�AP IN ALL SIGNS "WARNING 1 BASIN 'A' SHALL ENSURE POSITIVE SLOPE IS
LINED OUTLEt S MAINTAINED. BERM SHALL BE STABILL
PROTECTION I I 'QUICK SAND, KEEP OUT" AS A FIRST STEP IN DISTURBANCE.
\
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OPOSED STOCKPILE PROPOSED SF I
SURROUNDED BY WITH WIRE S
SILT FENCE '\ BACKING
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Lie. No. 035791,ll
4/23/21 �4
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JOB NO.
202192
SCALE
1 'l
SHEET NO.
5A
PHASE IV ESC PLAN, SCALE i"=30'
/ I
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10 �� GRAPHIC SCALE J
30 o n5 0 I o
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\ V / i inch = 30 ft.
— — — — — — — — — — — /
W M_ —,
\ \ \ \ \ \ \ IF , — — MMO M
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THE HOME BUILDEf�SHALL WORK\-�
CLOSELY WITH THEE C INSPECTOR i■I�- �� \
\ , \ AT THE TIME OF THE INDIVIDUAL
LOT's CONSTRUCTION. DOWNGRADE
/
\ ,\ SUPER SILT FENCE ALL BE \
INSTALLED ON EACH IIVIDUAL
\ , \ LOT (BY THE HOME B LDER) ■-FI_ _ / \
CONFORMING TO THE UNIQUE
\ \HOME's FOOTPRINT & LOM\TION.—
\ \ \
MATCHLINE, SEESHEU_4 /
\ SOIL BOUNDAR� \ \ \
\ \ \ \ \ \ SEDIMENT ,
BASIN'A' — -
\ \ \ S\ \ \ \ DA=3.44ac �,
\ \ \ TYPE \ /
V , A AV 76 LOCATION OF
O
V A \ w 15cy DUMPSTER \
w
\ \
LOCATION OF FUELING AREA � \
THE FUELING TANK SHALL BE COMPLETELY SURROUNDED BY A 2' \ \
\ DEEP, 2' WIDE EARTHEN BERM WITH A HEAVY MIL POLYETHYLENE
\ \ \ \ \ \ -I - \ INING, OR BE PLACED IN AN IMPERVIOUS OPEN -TOP DUMPSTER. PROPOSED CLEAN WATER PROPOSED PAJ%ED CE D CO
\ SOIL \ \ \ Z` THE PROPOSED BERM OR DUMPSTER SHALL CONTAIN FUEL IN THE CONSTRUCTION ENTRANCE INS
\ \ PE \ \ \ • a' EVENT OF A SPILL. CONTRACTOR SHALL ENSURE VOLUME CAPACITY DIRECTING OFFSITE UPLAND (12'x70' MIN.) WITH WASH\
\\ - ,--IS-10°lo1AR_GER THAN THE MAXIMUM VOLUME OF STORED FUEL. D RUNOFF THROUGH THE PROPERTY. RACK. CE TO DRAIN TO DOWN O E
\ \ \ \ A� • - - - -- PROPOSED LIMITS OF DISTURBANCE CONTRACTOR SHALL ENSURE — -GRADIENT SEDIMENT TRAP TO ENT
\ \ \ �� ---- - TREAT FLASH RUNOF FROM
-LOCATION OF — _ COINCIDES-WITNPBOPERTY LINE POSITIVE SLOPE IS MAINTAINED.
— --- — �- VEHICULAR WAS F . i
-�1 SEDIMENT BASIN , \ \ PORTA-POTTY - m. w
A DRAINAGE
RR f
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\ \ — — PROPOSED 18" DIVERSION.
— CONTRACTOR SHALL P.._
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ENSURE POSI VESLOPE IS
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— — — \ --- - — — \
h - MAINTAINED. BERM SHALL \
Ass is 4�s iss Ass � jss Ass s As iss dss jss Ass dss ` Ass Jss - BE STABILIZED AS -A FIRST D
—'- ` - STEP IN DISTURBANCE.
PROPOSED SF SS SOIL \
\ PROPOSED -LIMCE, TYP. WITH WIRE — — —" _TYPE__—
DISTURBANCE,TYP. `�—89CKIN6- 36C
\ TOTAL LIMITS OF
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— / � / / / 1 jss js s jss jss jss s j �� j s� jss• A55 \ d55
IF / PROPOSED LIMITS OF
— \ — — — / DISTURBANCE, PR POSED SAFETY FENCE, SEDIMENT PROPOSED "DIVERSION. CONTRACT is
/ PROPOSED RIPfjAP S SHALL ENSURE POSITIVE SLOPE IS � \ I _ Ef I IN ALL SIGNS "WARNING BASIN 'A' DD PROPOSED SF
— — — — — — — — L ROTECTIONI I I 'QUICK SAND, KEEP OUT" 1 AS A FIRST E PIN DISTURBANCE. \ RSURROUNDEOPOSED OD BY LE WITH WIRE S
MAINTAINED.B BERM SHALL BE STABILIZED
SILT FENCE 'r BACKING
Lie. No. 0357911E
4/23/21 �4
15'lOnrnt. 8�01
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JOB NO.
202192
SCALE
1"=30'
SHEET NO.
58
PRE -DEVELOPMENT STORMWATER MANAGEMENT PLAN, SCALE r'=80'
POST -DEVELOPMENT STORMWATER MANAGEMENT PLAN, SCALE 1°=80'
I CHANNEL AND FLOOD PROTECTION SUMMARIES
1 Concentrated Outfall Method of 9VAC25-870-66 Method of 9VAC25-870-66 Method of 9VAC25-870-66 Method of 9VAC25-870-66
/ (Point of Analysis) Channel Protection Compliance Limits of Analysis for Channel Protection Flood Protection Compliance Limits of Analysis for Flood Protection
Subarea A Outfall Section B.3.a (Energy Balance) N/A (Energy Balance Satisified) Section C.2.b (Post 10-yr Peak Flow < 10-yr Peak Flow) N/A (Section C.2.b Satisified)
I /
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DA AP (9'I
/ \\ I • \ 7.64ac.
\ � I CN=74
Tc= 0.23 hrs.
EXISTING CULVERT TO BE REPLACED WITH A
NEW CULVERT. THE CULVERT DRAINS UPLAND,
V I / OFFSITE RUNOFF THROUGH THE PROPERTY-
V 100' OF-OLF w/ n ELEV.=3'. \ Imo/ . I / d / _
\ 535' OF CONC. FFL W w/ A ELEV.=31' �W— 1i
\ 100' OF OLF w/ A ELEV.=2', • /
\ \ 56V OF CONC. FLOW w/ A ELEV.=55' , // •�•j �� IN�
a / �
EXISTING CULVERT WILL BE REPLACED WITH / F / Q.41acc. /" \
/ A CUL-DE-SAC CONTAINING CURB & GUTTER CN-63 \
& STORM SEWER. THIS RUNOFF WILL BE / �. /Try 0./25 hrS.
CAPTURED & DISCHARGED INTO A SWM
FACILITY IN THE POST -DEVELOPMENT STATE.
z— / f�L
W I
c // \ LOCATION�OF— II
PROPOSED
BIRCHOOD ..,. n \I ` 7- III 1I °l / OUTFALL I I
HILL - U ICAr
/ =
If ��UNTRE,ATED Aff��EA DRAINING e:%
/ W • 30-THE EX1`ING CHANNEL
IS REDIRECTED"*PO STREAM BUIFFER \
\ / POST--DEVELOPM NT STfyfE
TO RECEIVE�T(2EAIM NT /g/ / A
�' T' ;7
\ Pre-Dev. DA A Impervious Area Summary / / • / / /z?l
Existing Pavement 6,100 sf // /_ ♦����`` �� /%q°� // }/ // / / / /I I I I II / j/
Existing Structures 3s75 sf
9,975 sf
Pre-Dev. Groundcover Summary
(VRRM Limits Defined by ESC Limits of Disturance)
F
ng Pavement 7,45o sfng Structures 3,350 sf - / - — — / / / / / / / I I I I I / ► / / ` �/ /� / \
10,800 sf
WATERSHED SUMMARY FOR SUBAREA A
(Used in the Channel and Flood Protection Analyses)
CN Area, 1-year Flow, 2-year Flow, 10-year Flow,
ac. cfs cfs cfs
DA A (Pre-Dev.) 63 4.41 2.23 3.70 9.14
DA A (Post-Dev.) 69 4.41 1.17 2.99 8.39
STORMWATER MANAGEMENT NARRATIVE:
j I p I i OVERVIEW:
/
THE PROPOSED STORMWATER MANAGEMENT PLAN COMPLIES WITH PART IIB SWM REQUIREMENTS. ALL FUTURE
IMPERVIOUS AREAS ASSOCIATED WITH THIS SUBDIVISION HAVE BEEN ACCOUNTED FOR AND ARE INCLUDED
IN THE CALCULATIONS. THE MAXIMUM IMPERVIOUS AREA ALLOWED ON THE LOTS, WITHOUT REQUIRING AN
ADDITIONAL ANALYSIS, IS 25,500sf. THIS EQUATES TO ROUGHLY 5,100sf PER LOT. CHANNEL & FLOOD
PROTECTIO�• I WATER QUALITY ACCORDANCE COMPLIANCE ARE MET IN ITY REQUI EMENTS HAVE BEENSAT SF ED. PH MINIMUM 9 VAC 25-870-66 REQUIREMENTS &
PLEASE SEE THE ATTACHED STORMWATER
— •) I MANAGEMENT CALCULATIONS PACKET FOR ADDITIONAL DETAILS PERTAINING TO THIS PLAN's COMPLIANCE.
WATER QUANTITY SUMMARY
I — J / • THE STORMWATER MANAGEMENT PLAN FOR THIS DEVELOPMENT CONTAINS TWO PRIMARY SUBAREAS.
SUBAREA A CAPTURES THE VAST MAJORITY OF THIS PLAN's PROPOSED IMPERVIOUS AREAS AND SUBAREA B
CONVEYS UPLAND, OFFSITE RUNOFF.
J / I • / / SUBAREA A CAPTURES THE MAJORITY OF THE PROPOSED ROADWAY AND PORTIONS OF THE LOTS VIA SWALES, — — — — _
CURB & GUTTER AND STORM SEWER. THIS CAPTURED RUNOFF WILL OUTFALL INTO A PROPOSED SWM FACILITY
• / 1 • / / THAT INCLUDES RIPRAP LINED OUTLET PROTECTIONS. THE RUNOFF WILL SLOWLY BE RELEASED FROM THE
• /' / / SWM FACILITY INTO A CULVERT/STORM SEWER SYSTEM CONVEYING THE OFFSITE, UPLAND SUBAREA B. THE
\ J / OUTFALL FOR THESE SUBAREAS IS THE ONLY PROPOSED CONCENTRATED OUTFALL ASSOCIATED WITH THIS
• / I / PLAN & THE FACILITY'S ATTENUATION WILL MITIGATE THE MINOR IMPACTS FROM THE PROPOSED LOW -IMPACT
— — • 1 • / DEVELOPMENT. CHANNEL AND FLOOD PROTECTION ANALYSES HAVE ALSO BEEN PREFORMED FOR SUBAREA A.
1 / SUBAREA A IS COMPLIANT WITH 9 VAC 25-870-66 SUBSECTION B.3.a (ENERGY BALANCE) AND THE LIMITS OF
ANALYSIS STOPS AT THE CONCENTRATED OUTFALL SINCE SUBSECTION B.3.a IS MET. FROM A FLOOD
\ I • 1 PROTECTION STANDPOINT, SUBAREA A IS IN COMPLIANCE WITH 9 VAC 25-870-66 SUBSECTION C.2.b (10-yr
— \ • I \ POST-DEV. FLOW < 10-yr PRE-DEV. FLOW) AND THE FLOOD PROTECTION LIMITS OF ANALYSIS STOPS AT THE
\ OUTFALL SINCE SUBSECTION C.2.b IS MET. WHERE PROPOSED IMPROVEMENTS & LAND COVER CHANGES
\ I OCCUR OUTSIDE OF SUBAREA A, FOR EXAMPLE THE REAR PORTION OF LOT 3 & LOT 4, THE PERVIOUS &
\ \ \ \ / I • // DISCONNECTED IMPERVIOUS AREAS SHALL BE RELEASED IN A SHEET FLOW MANNER THAT IS NOT
• / / CONCENTRATED. HOUSES ON THESE LOTS SHALL HAVE SPLASH BLOCKS AT THE OUTLETS OF THEIR
Aar/ DOWNSPOUTS TO PREVENT EROSION, SEDIMENTATION OR FLOODING OF DOWN GRADIENT PROPERTIES.
/ / / PLEASE SEE SHEET 7 FOR A DETAIL OF THE SPLASH BLOCK, OR EQUIVALENT.
/ I ` • / WATER QUALITY SUMMARY
\ \ THE BOUNDARY FOR THE ESC LIMITS OF DISTURBANCE WAS USED FOR THE BOUNDARY FOR THE VIRGINIA
RUNOFF REDUCTION METHOD's WATER QUALITY CALCULATIONS. THE PROPOSED DEVELOPMENT RESULTS IN
\ / AN OVERALL REQUIRED PHOSPHOROUS REMOVAL RATE 1.91 Ibs/yr. THIS PHOSPHOROUS LOADING 15
\ MITIGATED THROUGH THE BEST MANAGEMENT PRACTICE OF PURCHASING NUTRIENT CREDITS.
i-- / *.
1 � \
\ \D
4�
gRMqNs
DA B'
7,6
Tc= 0.23 hrs.
/ PROPOSED LOW POINT & CULVERT TO DIVERT UPLAND, OFFSITE DRAINAGE,°H \ ;
/ / ■ I \ THROUGH THE PROPERTY. PROPOSED CULVERT SIMULATES THE REMOVAL
\ \ OF THE EXISTING CULVERT CONVEYING RUNOFF THROUGH THE PROPERTY.
—
V 100' OF 0LF w/ A ELEV.=3',`/-
\ 535' OF CONC. FF W w/ A ELEV.=31'
v _ late
/
100' OF OLF w/ A ELEV.-2', / —
4 5' CONC. FLOW w A ELEV.=26' & T�
`\ 22 OF C A L FLOW N ROAD & PIPES , / A .A ■ / pin
`\ • / / / 4.41 c. / / • i
/ / / Tc=/0.25rs.
/W
r—
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BIRCH // OOD HILL ROD • / I 1 / \PROPOSED CONCENTRATED OUTFAU,," OUTFALL DRAINS TO THE STREAM
U C • /
BUFFER\& EXISTING CHANNEL
'CNPO STREAM BU)FFER \
ROPOS� LI[ T O STURBANCE & •� /
RRM B N Y INC -E WIT THE / I I I I 11 AL
\ \ I FAO Ejil LIN N MOSTIP ES. / • ■ /� •• / / / ' I I I I I I I I I I / / �.
Post-Dev. DA A Impervious Area Summary/ Proposed Roadway &Sidewalk 20,825 sf
Proposed Residences 12,000 sf
Proposed Driveways 4050 sf
Existing Structures 3,200 sf
Existing Pavement 1,050 sf — ^ /
41,125sf
Post-Dev. Groundcover Summary
(VRRM Limits Defined by ESC Limits of Disturance)
Proposed Roadway & Sidewalk 20,825 sf / ROP0 ED LIMITS OF DI�STU N
Proposed Residences 20,000 sf UNDA DEFINES TH VRRM AT / \
Q Irr BouNDA , As
Proposed Driveways 5,500 sf46,325 sf
iCOTT/R. CI?LLINSZ
Lic. No. 035791,a
4/23/21 "Ai
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JOB NO.
202192
SCALE
1"=80'
SHEET NO.
6
GRASS LINED DRY RETENTION BASIN CONSTRUCTION NOTES:
FACILITY PLANTING SPECIFICATIONS:
1. THE DRY BASIN SHALL HAVE TURF GROUND COVER, SUCH AS GRASS OR SOME OTHER FORM OF A VEGETATIVE GROUNDCOVER. LANDSCAPING BEYOND
THIS IS OPTIONAL AND IS NOT REQUIRED.
2. THE PROPOSED INTERIOR SIDE SLOPES OF THE DRY BASIN SHALL BE 3:1 WITH THE TOP OF THE EMBANKMENT SERVING AS A SAFETY BENCH. THE
PROPOSED FLOOR SLOPES SHALL BE GRADED TO PROVIDE POSITIVE DRAINAGE AT ALLTIMES TO THE RISER STRUCTURE.
3. WOODY VEGETATION SHALL NOT BE PLANTED OR ALLOWED TO GROW WITHIN 15 FEET OF THE TOE OF THE EMBANKMENT NOR WITHIN 25 FEET OF THE
PRINCIPAL SPILLWAY STRUCTURE.
1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LAYOUT OF ALL WORK COVERED UNDER THESE PLANS.
2. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS IN THE FIELD AND NOTIFY THE DESIGNER OF ANY VARIANCE FROM THE PLAN.
3. THE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE LOCATION OF ANY ONSITE UTILITIES (CALL MISS UTILITY AT 1-800-552-7001 BEFORE ANY
EXCAVATION).
4. REFER TO THE APPROVED FINAL SITE PLANS FOR ANY DETAILED SITE INFORMATION.
5. ALL WORK SHALL BE COORDINATED WITH OTHER PARTIES.
6. THE CONTRACTOR IS RESPONSIBLE FOR REMOVAL AND DISPOSAL OF TRASH AND DEBRIS WITHIN THE LIMITS OF THE DRY BASIN ON A DAILY BASIS.
7. THE CONTRACTOR WILL NOT BE RESPONSIBLE FOR DAMAGE CAUSED BY VANDALISM, FIRE, OR OTHER ACTIVITIES BEYOND THE CONTRACTOR's CONTROL.
FACILITY CONSTRUCTION
1. THE DRY BASIN MAY SERVE AS A SEDIMENT TRAPPING DEVICE DURING PROJECT CONSTRUCTION. IF THIS IS DONE, THE VOLUME SHALL BE BASED ON THE
MORE STRINGENT SIZING RULE (EROSION AND SEDIMENT CONTROL REQUIREMENTS VS. STORMWATER TREATMENT REQUIREMENTS). INSTALLATION OF
THE PERMANENT RISER, BARREL AND STR. 6 SHALL BE INITIATED DURING THE CONSTRUCTION PHASE, AND DESIGN ELEVATIONS SHALL BE SET WITH FINAL
CLEANOUT OF THE SEDIMENT BASIN AND CONVERSION TO THE POST -CONSTRUCTION DRY BASIN IN MIND. APPROPRIATE PROCEDURES SHALL BE
IMPLEMENTED TO PREVENT DISCHARGE OF TURBULENT WATERS WHEN THE BASIN IS BEING CONVERTED TO A DRY BASIN.
2. THE DRY BASIN SHALL ONLY BE CONSTRUCTED AFTER THE CONTRIBUTING DRAINAGE AREA TO THE FACILITY IS COMPLETELY STABILIZED. IF THE PROPOSED
LOCATION OF THE DRY BASIN WILL BE USED AS A SEDIMENT TRAP OR BASIN DURING THE CONSTRUCTION PHASE THEN THE FACILITY WILL BE DEWATERED
DREDGED AND RE -GRADED TO DESIGN DIMENSIONS AFTER THE ORIGINAL SITE CONSTRUCTION IS COMPLETE. MODIFICATIONS SHALL BE MADE TO THE
RISER, ORIFICES AND BARRELS AS REQUIRED SO THAT THEY ARE CONSISTENT WITH THE FINAL CONSTRUCTION SPECIFICATIONS.
3. THE CONTRACTOR SHALL ASSEMBLE CONSTRUCTION MATERIALS ON -SITE, MAKING SURE THEY MEET DESIGN SPECIFICATIONS AND ARE PREPARED AT
STAGING AREAS WHEN POSSIBLE.
4. THE CONTRACTOR SHALL CLEAR AND STRIP THE PROJECT AREA IF REQUIRED TO THE DESIRED SUB -GRADE.
5. INSTALL E&S CONTROLS PRIOR TO CONSTRUCTION OF THE DRY BASIN, INCLUDING TEMPORARY DE -WATERING DEVICES AND STORMWATER DIVERSION
PRACTICES. ALL AREAS SURROUNDING THE DRY BASIN THAT ARE GRADED OR DENUDED DURING CONSTRUCTION SHALL BE PLANTED WITH TURF GRASS,
NATIVE PLANTINGS, OR OTHER APPROVED METHODS OF SOIL STABILIZATION.
6. CONTRACTOR SHALL EXCAVATE THE CORE TRENCH AND INSTALL THE SPILLWAY PIPE DURING THE ESC PHASE.
7. CONTRACTOR SHALL ALSO INSTALL THE RISER, OUTFLOW STRUCTURE AND/OR THE BARREL(s) WITH PERMANENT COLLARS DURING THE ESC PHASE.
CONTRACTOR SHALL ENSURE THE TOP INVERT OF THE OVERFLOW WEIR IS CONSTRUCTED LEVEL AT THE DESIGN ELEVATION.
8. THE CONTRACTOR SHALL CONSTRUCT THE EMBANKMENT AND ANY INTERNAL BERMS IN 8-TO 12-INCH LIFTS, COMPACTION SHALL BE COMPLETED IN LIFTS
WITH APPROPRIATE EQUIPMENT. THE CONTRACTOR SHALL ALSO ADHERE TO THE CLAY LINER SPECIFICATIONS OUTLINED IN TABLE 14.4 BELOW:
Table 14.4. Clay Liner Specmcations
Property
Test Method
Unit
Specification
Permeability
ASTM D-2434
Cm/sec
1 x 1
Plasticity Index of Clay
ASTM D-4231424
%
Not less than 15
Li uid Limit of Cla
ASTM D-2216
%
Not less than 30
Clay Particles Passing
ASTM D-422
%
Not less than 30
Clay(-.-- coon
ASTM a2216
%
95% of standard pfoclar denlifty
virglnla �wrmwater ManagUneall Mana000a ilVYYI
9. RADE UNTIL THE APPROPRIATE ELEVATION AND DESIRED
CONTOURS ARE ACHIEVED FOR THE BOTTOM AND SIDE SLOPES OF THE DRY BASIN.
10. CONTRACTOR SHALL THEN CONSTRUCT THE EMERGENCY SPILLWAY IN CUT OR STRUCTURALLY STABILIZED SOILS.
11. THE CONTRACTOR SHALL THEN FINISH CONSTRUCTION OF ALL OUTLET STRUCTU RES, INCLUDING DOWNSTREAM RIP -RAP APRON PROTECTION IF
APPLICABLE.
12. THE CONTRACTOR SHALL NEXT STABILIZE EXPOSED SOILS BY HYDROSEEDING OR SEEDING OVER STRAW.
FACILITY MAINTENANCE:
MAINTENANCE OF THE DRY BASIN IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE FACILITY. DURING THESE
INSPECTIONS THE FOLLOWING TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR FOLLOWING INSTALLATION, AND THE OWNER
THEREAFTER:
1. MEASURE SEDIMENT ACCUMULATION LEVELS IN THE DRY BASIN.
2. MONITOR THE GROWTH OF THE GROUNDCOVER.
3. INSPECT THE CONDITION OF STORMWATER INLETS TO THE DRY BASIN FOR MATERIAL DAMAGE, EROSION OR UNDERCUTTING.
4. INSPECT THE BANKS OF UPSTREAM AND DOWNSTREAM CHANNELS FOR EVIDENCE OF SLOUGHING, ANIMAL BURROWS, BOGGY AREAS, WOODY GROWTH,
OR GULLY EROSION THAT MAY UNDERMINE EMBANKMENT INTEGRITY.
5. INSPECT THE DRY BASIN's OUTFALL CHANNEL FOR EROSION, UNDERCUTTING, RIP -RAP DISPLACEMENT, WOODY GROWTH, etc.
6. INSPECT CONDITION OF PRINCIPAL SPILLWAY AND RISER FOR EVIDENCE OF SPALLING, JOINT FAILURE, LEAKAGE, CORROSION OR OTHER FAILURES.
7. INSPECT CONDITION OF ALLTRASH RACKS, REVERSE SLOPED PIPES OR FLASHBOARD RISERS AS APPLICABLE FOR EVIDENCE OF CLOGGING, LEAKAGE, DEBRIS
ACCUMULATION OR OTHER FAILURES.
8. INSPECT MAINTENANCE ACCESS TO ENSURE IT IS FREE OF WOODY VEGETATION, AND CHECK TO SEE WHETHER VALVES, MANHOLES AND LOCKS CAN BE
OPENED AND OPERATED AS APPLICABLE.
9. INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE DRY BASIN FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR SLUMPING.
10. OWNER OR CONTRACTOR SHALL MAKE NEEDED REPAIRS IMMEDIATELY.
FACILITY INSPECTION:
MULTIPLE INSPECTIONS ARE CRITICAL TO ENSURE THE DRY BASIN IS PROPERLY CONSTRUCTED. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY
THE CONTRACTOR, THE CONTRACTOR SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER AND INSPECTOR PRIOR TO INSTALLATION. MULTIPLE SITE
VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE CONTRACTOR WITH THE ENGINEER AND INSPECTOR DURING THE FOLLOWING STAGES OF
THE DRY BASIN's CONSTRUCTION PROCESS:
1. PRE -CONSTRUCTION MEETING
2. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS)
3. EXCAVATION GRADING e.. INTERIM FINAL ELEVATIONS
4. INSTALLATION OF THE EMBANKMENT, THE RISER/PRIMARY SPILLWAY, AND THE OUTLET STRU CTU R IS (s).
4. DRY BASIN INSTALLATION (e.g., INTERIM AND FINAL ELEVATIONS)
5. PLANTING PHASE FOR TURF GROUNDCOVER
6. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE)
Splash Block Instructions
Before installation of the Splash Block, or any
rain diverting accessory, make sure the grade
around the foundation slopes away from the
house. There should be a 6 inch fall in the first
1D feet from the house.
E 10 Feet
6lin
i
Patent -pending cut-out to allow
for fitment of downspout with
low clearance of elbow
Water directing chevron pattern
reduces washout
AM ER I MAX
amerimax,com 1 800-347-2506
infordamenmax.com
A
Hole for landscape spike at
front of splashblock allows
it to be secured to ground
SEC TIO\ A-9! TYPICAL GRAPHICAL DELAILS
Homogeneous fill
t I Cut off trench-4' below slitablel
material
Soil arrock L - - - - - - - - - - - J
TYPICAL HOMOGENEOUS
EMBANKMENT
Tronsition fill
ock or gravel
Pipe outlet Coorg� fi r
o
Perforated collector oround s�s
Foundation drain `Blanket drain
FOUNDATION DRAIN BLANKET DRAIN
/r..fir" drain
Sand, yr0,el or rock
dean outlet
Rock or grovel
` Rock toe a, drain
�aTrunsilion filter Trontaition filter
CHIMNEY DRAIN TOE DRAIN
Source: SC'S Engineering i• field .Manual
Figure A -la. Homogeneous Embankments it Seepage Controls
EMBANKMENT NOTES:
THE EMBANKMENTS SHALL HAVE A COMPACTED CLAY CORE WITH A CUTOFF TRENCH & BE IN ACCORDANCE WITH THE DETAILS SHOWN
IN THIS PLAN. BERMS AND SPILLWAYS SHALL BE STABILIZED WITH EC-3 MATTING & RIPRAP AND THE REMAINING DISTURBED SLOPES
SHALL BE STABILIZED WITH EC-2 MATTING. ALL BERM FILL MATERIAL SHALL CONSIST OF ML, CL, SC OR GC SOILS & BE FREE OF WOOD,
ROOTS, ROCKS OR ANY OTHER NON COMPACTING SOIL. COMPACTED FILL SHALL BE PROCTOR MAXIMUM DRY DENSITY ASTM D698 AND
HAVE A MINIMUM OF 95% OF MAXIMUM DRY DENSITY AND 2% OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL AND
CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE
EMBANKMENTS AND FILL AREAS.
General Construction notes for Stormwater Management Plans
1. All dams and constructed fill to be within 95% of maximum dry density and 2% of optimum moisture
content. All Hill material to be approved by a geotechnical engineer. A geotechnical engineer is to be
present during construction of dams.
2. Pipe and riser joints are to be watertight within Stormwater management facilities.
3. For temporary sediment traps or basins which are to be converted to permanent stormwater management
facilities; conversion is not to take place until the site is stabilized, and permission has been obtained from
the County erosion control inspector.
745
PROPOSED 036" HI
SERVE AS THE RISER S
TO HAVE A STATE APPR
A D ALURIM ELEV.=
I CDE A 5 3" L(
740 ( V.=732.00') WI
id IDETOP OF DAP
E EV.=738.o', TYP.
CONTRACTOR SHALLINSTALL
EMBANKMENTIN ACCORDANCE w/
THE DESIGNS SHOWN ON THIS SHEET.
1 735 1
GRADE
730
2- DI WA
'RO OSED
VDOT STD. /
EW
725 /
INV. OUT
720
745
STANDPIPE TO
1CTURE. RISER
:D TRASHRACK
3.67. RISER TO
FLOW ORIFICE
A TRASHRACK. 740
/' 100-yr PEAK WSE=736.98
/ 10-yr PEAK WSE=736.59
2-yr PEAK WSE=735.81
/ \ 1-yr PEAK WSE=735.02
/ PROPOSED BASIN's FLOOR SHALL
/ W BE SLOPED TO DRAIN TO THE
/ RISER (0.5% MIN.) WITH POSITIVE
/ SLOPES THROUGHOUT.
/ I
STR:6 VDOT STD. MH
/ TP=737 75
INV I N=727.5o TO
INV IN=728.83 (SWM)
INV OUT=726.2S TO
725
e
1 /2" zinc plated hook
attached with 3/8' fastener
a
®®
® ® 2-1/8" din. holes
®%
ISOtnct.r'1C
1/4' HOPE plate (optional)
pipe
culvert
tiT: XY
HDPF. structural plaaic with
0 2-1/8" holes and 1/a" plate
.Plastic by Plastic OO
00
Solutions Inc. or equal
000
0000
I
' : ;- :<s_ -
"-- shown with optional plate
*�:rr^�rrv5
HDPF. structural plastic with
2-1/6" holes and 1/4' plate
.Section manufactured by Plastic
Solutions Inc. or equal
l; ti' akin hair
0 0
00
0 0
single BHP Elevation
unfree
PLASTIC
DEBRIS
CAGE
SOLUTIONS F.O. Rox 438e
Binenester l'122M4
INC. 877-877-5727
rrr.plea;c-tslatc cam
PROPOSED 8.40 LF OF 012" HOPE
PIPE TO OUTFALL BASIN INTO STR. 6
(II=729.00, I0=728.83)
00
I I
PROPOSED VDOT CL. AI RIPRAP TO PREVENT FLOTATION STR. 6, THE RISER BASE & THE
LINED OUTLET PR TECTION WITH BARREL SHALL BE FIRMLY EMBEDDED 6" INTO AN 18"
FILTER FABRIC UN ERLAYMENT THICK REINFORCED CONCRETE FOUNDATION THAT IS
(MIN. L=1z', W,=6', Wz=l4',D=1z") BURIED BELOW GROUND. THE RISER FOUNDATION
SHALL BE 6'x6' AND STR. 6's FOUNDATION SHALL BE 8'x8'.
Ln
m n e�i to w
0+50 2+00 2+50
SWM FACILITY SECTION
PROFILE SCALES
1"=5' (V)
1"=50' (H)
GENERAL SWM NOTES:
1. STATE APPROVED TRASH RACKS SHALL BE INSTALLED ON ALL ORIFICE OPENINGS. SEE THIS SHEET, OR
EQUIVALENT, FOR DETAILS.
z. CONCRETE FOUNDATIONS SHALL BE INSTALLED ON ALL RISER STRUCTURES MEETING MINIMUM VESCH
3.14 SPECIFICATIONS, INCLUSIVE OF STR. 6 SINCE IT IS LOCATED WITHIN THE DRY BASIN AND IS SUBJECT
TO BUOYANCY.
3. CONTRACTOR SHALL HIRE A THIRD PARTY GEOTECHNICAL ENGINEER TO ENSURE THE EMBANKMENTS
ARE STRUCTURALLY SOUND. ALL EXISTING AND PROPOSED FILL MATERIAL AND PROPOSED
CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE
CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS, AND PRESENT DURING THE CORE SAMPLING.
4. THE DOWNSTREAM EMBANKMENT SIDE SLOPES OF ALL PERMANENT FACILITIES, INCLUSIVE OF THE DRY
BASIN, SHALL HAVE A MAXIMUM 3:1 SLOPE.
5. CONTRACTOR SHALL EXCAVATE SEDIMENT LADEN MATERIAL IN ANY ESC SEDIMENT TRAPPING DEVICES
ATTHE TIME OF THE FACILITIES' CONVERSIONS TO PERMANENT SWM FACILITIES, IF APPLICABLE. AT
SUCH TIME THE CONTRACTOR SHALL REGRADE THE SEDIMENT TRAPPING DEVICES TO THE PROPOSED
GRADES SHOWN ON THE SWM SHEETS. THE CONTRACTOR SHALL MINIMIZE SOIL COMPACTION DURING
THE CONVERSIONS.
PROPOSED
GRADE
EXISTING
GRADE
745
745
10'
IDETO
OFDAM
El
EV.=738.
d, TYP.
740
740
735
25'
735
PRO
OSED25'WIDEV
OTCL.AI
RIPRAP
LINED EMERGENC
(SPILLWAY
w/4:1
31DE SLOPES & FILTER
FABRIC
UNDER
AYMENT(STONE
EPTH=1
").
SPILLWAY
CREST ELE
.=736.67'.
730
730
m
O
0
�06
0+50
SWM FACILITY SPILLWAY
ar COUNTY OF ALBEMARLE
` Department of Community Development
0J
Construction Record Drawings (As -built) for VSMP
The following is a list of information required on construction record drawings for
W - ;form star facilities reference Water Protection Ordinance 17 422 . Itis 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:
1. 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 I.ocation 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 r design. Corrections may be required
Po Y Y Po per g Y
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.
ALL SLOPES GREATER THAN 3:1 SHALL BE
PLANTED WITH NON -EROSIVE LONG GRASSES
OR OTHER TYPES OF NON -EROSIVE PLANTINGS.
DRY GRASS RETENTION AREA DETAIL, SCALE 1"=30'
CONTRACTOR SHALLCALLTHE 24 COUNTY INSPECTOR& - / / / / / / / /
ENGINEERING DEPARTMENT z4-HOURS BEFORE ANY ANTICIPATED PROPOSED DRY BASIN'S FLOOR SHALL BE //\\//��//
CONSTRUCTION ACTIVITIES FOR THE DRY BASIN. SLOPED TO DRAIN TO THE RISER (o.5%MIN.)
WITH POSITIVE SLOPES THROUGHOUT.
PROPOSED 036" HOPE STANDPIPE TO SERVE AS / PRO RT<LI NE,
THE RISER STRUCTURE. RISER TO HAVE A STATE / /T P \
APPROVED TRASHRACK AND A RIM ELEV.=735.67.
RISER TO INCLUDE A 5 3" LOW -FLOW ORIFICE 1 +75
(INV. 732.00') WITH A TRASHRACK. /
PROPOSED 8.40 LF OF 012" HOPE
/ ^ PIPE TO OUTFALL BASIN INTO
STR. 6 (II 729.00, IO=728.83) /
TO PREVENT FLOTATION STR. 6, THE RISER BASE & THE
BARREL SHALL BE FIRMLY EMBEDDED b" INTO AN 38
THICK REINFORCED CONCRETE FOUNDATION T14AT IS
BURIED BELOW GROUND. THE RISER FOUNDATION SHALL
BE 6'x6' AND STR. 6's FOUNDATION SHALL BE 8'x8'.
7
PROPOSED STR. 6 TO I NCLU DE VD9T'STD. ST-i STEPS.
STEPS SHALL BE LOCATED ON TE OPPOSITE SIDE OF
THE INCOMING-PIRESWHERE.POSSIBLE TO FACILITATE /
1 0 3. POTENTIAL MAINTENANCE. SEE PROFILE ON THIS
SHEET FOR THE DRY BASIN's OUTFALL INTO STR. 6.
/ io'WIDETOPOFDAM
0 50 ELEV.=738.o', TYP. /
+(001
/ i 7 PROPOSED VARIABLE WIDTH /
W _ SWM&ACCESS & / W/ - w MAINTENANCE ESMT
PROPOSED PUBLIC ROAD & i PROPOSED 25' WIDE VDOT CL. ARAP LINED
SIDEWALK TO SERVE AS �� EMERGENCY SPILLWAY wl 4:1 SIDE SLOPES&
i ACCESS TO THE DRY BASIN - FILTER FABRIC UNDERLAYMENT (STONE
DEPTH=18"). SPILLWAY CREST ELEV.=736.67'.
1 _ SEE THIS -SHEET FOR SCAL\
PROFILES OFTHE DRY_BASIN, TYP. w
0+00 PROPOSED VDOT CL. Al RIPRAP
LINED OUTLET PROTECTION WITH
FILTER FABRIC UNDERLAYMENT
/ (MIN. L=12', W,=6', W,=14,D=12")1
iCOTT/R. C1ILLINS7
Lic. No. 035791,a
4/23/21 "Ai
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JOB NO.
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AS SHOWN
SHEET NO.
7