HomeMy WebLinkAboutWPO202000011 Plan - VSMP 2020-06-03TRUMP WINERY EXPANSION
VSMP PLAN
SCOTTSVILLE MAGISTERIAL DISTRICT
ALBEMARLE COUNTY, VIRGINIA
GENERAL NOTES I P�� r� F
OWNER: ERIC TRUMP LAND HOLDINGS, LLC
100 WINERY HILL LANE
CHARLOTTESVILLE, VA 22902
ENGINEER: COLLINS ENGINEERING
200 GARRETT ST, SUITE K
CHARLOTTESVILLE,VA 22902
(434)293-3719
TAX MAP NO.: 10200-00-00-035BO DB 4030 PG 451
TOTAL PROJECT AREA: 129.68 ACRES TOTAL
PROJECT AREA: 1.37 ACRES (TOTAL LIMITS OF DISTURBANCE)
2.15 ACRES (LIMITS OF VSMP PLAN)
ZONING: RURAL
USE: FARM WINERY
TOPO & SURVEY: SURVEY PROVIDED BY KIRK HUGHES & ASSOCIATES DATED
FEBRUARY, 2020.
DATUM: NAD83, NAVD 88
EXISTING TERRAIN: AGRICULTURAL AND WOODED
PROPOSED: EROSION CONTROL AND STORMWATER MANAGEMENT PLAN
FOR THE PROPOSED WINERY EXPANSION
WATER SUPPLY PROTECTION AREA: NOT APPLICABLE WITH THIS SITE PLAN AMENDMENT
WATERSHED / WATER RESOURCE AREA: RIVANNA RIVER DRAINAGE BASIN
DENSITY: NOT APPLICABLE
GREENWAY DEDICATION: NOT APPLICABLE
BUILDING HEIGHTS: MAXIMUM HEIGHT SHALL NOT EXCEED 35 FEET
SETBACKS: FRONT - 25' FROM INTERNAL PRIVATE STREETS
SIDE - 25' MINIMUM
REAR - 35' MINIMUM
AGRICULTURAL/ FORESTAL DISTRICT: THE SUBJECT PROPERTY IS LOCATED WITHIN THE
LANARK AGRICULTURAL -FORESTAL DISTRICT
STREAM BUFFERS/FLOODPLAIN: THIS PROPERTY IS NOT IN A FLOODPLAIN ACCORDING
TO FEMA MAP #51003CO420D
IMPERVIOUS AREAS (WITHIN LIMITS OF PROJECT AREA):
EXISTING PROPOSED
GRAVEL: 1,925 SF 14,125 SF
BUILDINGS: 9,975 SF
PERCENT OF IMPERVIOUS COVER WITHIN PROJECT AREA:
TOTAL IMPERVIOUS COVER = 26,025 SF / 1.37 ACRES = 43.6%
CRITICAL SLOPES: NO CRITICAL SLOPES ARE WITHIN THE LIMITS OF THE
PROJECT AREA.
BURIAL SITES: NO CEMETERIES WERE FOUND DURING FIELD INVESTIGATION
OF THE SITE WITHIN THE LIMITS OF THE PROJECT AREA.
STORMWATER MANAGEMENT: THE PROPOSED STORMWATER MANAGEMENT PLAN
COMPLIES WITH CURRENT PART IIB SWM REQUIREMENTS.
MINIMUM WATER QUALITY REQUIREMENTS ARE MET
THROUGH THE USE OF A LEVEL SPREADER THAT RELEASES
RUNOFF IN A SHEET FLOW CONDITION TO A CONSERVED AREA
WITH TYPE B SOILS. MINIMUM WATER QUANTITY
REQUIREMENTS ARE MET THROUGH THE USE OF A DRY
DETENTION BASIN THAT ATTENUATES FLOWS RESULTING
FROM THE PROPOSED IMPROVEMENTS.
NOTES:
CONTRACTOR SHALL VERIFY LOCATION AND ELEVATION OF ALL UNDERGROUND UTILITIES SHOWN ON PLANS
IN AREAS OF CONSTRUCTION PRIOR TO STARTING WORK. CONTACT ENGINEER IMMEDIATELY IF LOCATION OR
ELEVATION IS DIFFERENT FROM THAT SHOWN ON THE PLANS, IF THERE APPEARS TO BE A CONFLICT, AND
UPON DISCOVERY OF ANY UTILITY NOT SHOWN ON THE PLANS.
THE CONTRACTOR MUST LOCATE ALL SURFACE AND SUB -SURFACE UTILITIES PRIOR TO ANY WORK ONSITE.
APPROVED
by the Albemarle County
Community Development Department
Date 10 - 29 - 2020
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TITLE SHEET
COVER SHEET 1
EROSION & SEDIMENT CONTROL NARRATIVE AND DETAILS 2
EXISTING CONDITIONS AND EROSION & SEDIMENT CONTROL PHASE I PLAN 3
EROSION & SEDIMENT CONTROL PHASE II AND GRADING & DRAINAGE PLAN 4
STORMWATER MANAGEMENT PLAN 5
STORMWATER MANAGEMENT DETAILS 6
TOTAL SHEETS 6
LEGEND
EDGE OF PAVEMENT
CURB
SOIL BOUNDARY
BUILDING
PROPOSED ASPHALT
----- ---
STREAM BANKS
100' WPO BUFFER
PROPOSED EASEMENT, VARIES
WITH SHEET
®
DRAINAGE PIPE
BENCH MARK
VDOT STANDARD STOP SIGN
PROPOSED HANDICAP PARKING
SPACE STRIPING
INLET PROTECTION
EXISTING CONTOUR
200
PROPOSED CONTOUR
SEDIMENT TRAP OR BASIN
DRAINAGE DIVIDE
LIMITS OF CLEARING/GRADING
LIMITS OF DISTURBANCE
DIVERSION DIKE
RIGHT -OF- WA Y DI VERSION
TREE PROTECTION
SAFETY FENCE
-X—X—X—X—X—X--X—
SILT FENCE
-
PROPERTY LINE
PROPOSED CONCRETE
' - C" <'
100 YR. FLOODPLAIN
RIPRAP, OUTLET PROTECTION OR
CONSTRUCTION ROAD STABILIZATION
APPROVALS
SIGNATURE
DATE
DEPARTMENT OF COMMUNITY DEVELOPMENT
PLANNING/ZONING
ENGINEER
INSPECTIONS
ARB
DEPARTMENT OF FIRE RESCUE
ALBEMARLE COUNTY SERVICE OF AUTHORITY
VIRGINIA DEPARTMENT OF TRANSPORTATION
HEALTH DEPARTMENT
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JOB NO.
192178
SCALE
AS SHOWN
1
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 /N THIS SECTION CONSIST OF THE FOLLOWING:
301 SAFETY FENCE:
A PROTEC77VE BARRIER INSTALLED TO PREVENT ACCESS TO AN EROSION CON7ROL 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 THE
PUBLIC,
302 CONSTRUCTION ENTRANCE:
A STABILIZED PAVED CONSTRUCTION ENTRANCE KITH A WASH RACK 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 77-1E AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS.
J.05 SILT FENCE
A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYN7HETIC FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPORTING POSTS AND ENTRENCHED, TO
INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS 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 THE ViRGiNIA EROSION & SEDIMENT CON77?OL HANDBOOK (VESCH).
307 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 STABILIZATION OF THE DISTURBED AREA. INLET PROTECTION APPLIES WHERE STORM DRAIN INLETS ARE TO BE MADE
OPERATIONAL BEFORE PERMANENT STABILIZATION OF THE CORRESPONDING DISTURBED DRAINAGE AREA.
309 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 UNPR07ECTED 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 S17E DURING CONSTRUC770N. THESE STRUCTURES GENERALLY HAVE A LIFE EXPECTANCY OF 18 MONTHS OR
LESS, WHICH CAN BE PROLONGED WITH PROPER MAINTENANCE.
312 DIVERSION:
A CHANNEL CONSTRUCTED ACROSS A SLOPE WITH A SUPPORTING EARTHEN RIDGE ON THE LOWER SIDE. TO REDUCE SLOPE LENGTH AND TO INTERCEPT AND DIVERT
STORMWATER RUNOFF TO STABILIZED OUTLETS AT NON -EROSIVE VELOCITIES. APPLIES WHERE RUNOFF FROM AREAS OF HIGHER ELEVATION MAY DAMAGE PROPERTY,
CAUSE EROSION, OR INTERFERE WITH THE ESTABLISHMENT OF VEGETATION ON LOWER AREAS, WHERE SURFACE AND/OR SHALLOW SUBSURFACE FLOW iS DAMAGING
SLOPING UPLAND AND WHERE THE SLOPE LENGTH NEEDS TO BE REDUCED TO MINIMIZE SOIL LOSS.
313 TEMPORARY SEDIMENT TRAP.
A TEMPORARY PONDING AREA FORMED BY CONSTRUCTING AN EAR7HEN EMBANKMENT WITH A STONE OUTLET. TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL
DISTURBED AREAS LONG ENOUGH TO ALLOW THE MAJORITY OF THE SEDIMENT TO SETTLE OUT. USE BELOW DISTURBED AREAS WHERE 7HE TOTAL CONTRIBUTING
DRAINAGE AREA IS LESS THAN 3 ACRES, WHERE THE SEDIMENT TRAP WILL BE USED NO LONGER THAN 18 MONTHS, AND /T MAY BE CONSTRUCTED EITHER INDEPENDENTLY
OR IN CONJUNCTION WI7H A TEMPORARY DIVERSION DIKE.
3.14 TEMPORARY SEDIMENT BASIN:
A TEMPORARY BARRIER OR DAM WITH A CONTROLLED STORMW47ER RELEASE STRUCTURE FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A
DRAINAGEWAY. TO DETAIL SEDIMENT -LADEN RUNOFF FROM DISTURBED AREAS /N "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 THE CONSTRUCTION OF A TEMPORARY IMPOUNDMENT
318 OUTLET PROTECTION.,
STRUCTURALLY LINED APRONS OR OTHER ACCEPTABLE ENERGY DISSIPATING DEVICES PLACED AT THE OUTLETS OF PIPES OR PAVED CHANNEL SECTIONS TO PREVENT
SCOUR AT STORMWATER OUTLETS TO PROTECT THE OUTLET STRUCTURE, AND TO MINIMIZE THE POTENTIAL FOR DOWNSTREAM 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 PROTECT 7HE SOiL FROM
THE EROSIVE FORCES OF CONCENTRATED RUNOFF, SLOW 7HE VELOCITY OF CONCENTRATED RUNOFF WHILE ENHANCING THE POTENTIAL 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
320 ROCK CHECK DAMS:
SMALL TEMPORARY STONE DAMS CONSTRUCTED ACROSS A SWALE OR DRAINAGE DITCH. TO REDUCE THE VELOCITY OF CONCENTRATED STORMWATER FLOWS, THEREBY
REDUCING EROSION OF THE SWALE OR DITCH. THIS PRACTICE ALSO TRAPS SEDIMENT GENERATED FROM ADJACENT AREAS OR THE DITCH ITSELF, MAINLY BY PONOING OF
THE STORMWATER RUNOFF. THIS PRACTICE, UTILIZING A COMBINATION OF STONE SIZES, IS LIMITED TO USE IN SMALL OPEN CHANNELS WHICH DRAIN 10 ACRES OR LESS.
331 TEMPORARY SEEDING.
THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING KITH APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE
EROSION AND SEDIMENTATION 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 -SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS EXPOSED DURING CONSTRUCTION UNTIL
PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED.
332 PERMANENT STABILIZATION:
THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANING 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 SELECTION OF THE MOST
APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE HABITAT TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTON ACTIVITIES, ALL AREAS WILL
RECEIVE A PERMANENT VEGETATIVE COVER.
335 MULCHING.
APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL SURFACE TO PREVENT EROSION BY PROTECTING THE SOiL SURFACE FROM RAINDROP
IMPACT AND REDUCING THE VELOCITY OF OVERLAND FLOW. TO FOSTER THE GROWTH OF VEGETATION BY INCREASING AVAILABLE MOISTURE AND PROVIDING INSULATION
AGAINST EXTREME HEAT AND COLD. AREAS WHICH HAVE BEEN PERMANENTLY SEEDED SHOULD BE MULCHED IMMEDIATELY FOLLOWING SEEDING. AREAS WHICH CANNOT
BE SEEDED BECAUSE OF THE SEASON SHOULD BE MULCHED USING ORGANIC MULCH. MULCH MAY BE USED TOGETHER WITH PLANTINGS OF TREES, SHRUBS, OR CERTAIN
GROUND COVERS WHICH DO NOT PROVIDE ADEQUATE SOIL STABILIZATION BY THEMSELVES, CAN BE USED IN CONJUNCTION WITH TEMPORARY SEEDING.
337 TREESS, SHRUBS VINES & GROUND COVERS:
STABILIZING DISTURBED AREAS BY ESTABLISHING VEGETATIVE COVER NTH TREES, SHRUBS, VINES, OR GROUND COVERS. TO AID /N STABILIZING SOIL IN AREAS WHERE
VEGETATION OVER THAN TURF IS PREFERRED, TO PROVIDE FOOD AND SHELTER FOR KILDUFF WHERE WILDLIFE HABITAT IS DESIRABLE. APPLIES IN AREAS WHERE TURF
ESTABLISHMENT iS DIFFICULT, ON STEEP OR ROCKY SLOPES WHERE MOWING IS NOT FEASIBLE, WHERE ORNAMENTALS ARE DESIRABLE FOR LANDSCAPING PURPOSES, AND
WHERE WOODY PLANTS ARE DESIRABLE FOR SOIL CONSERVATION, OR TO ESTABLISH WILDLIFE HABITAT
338 TREE PRESERVATION AND PROTECTION:
PROTECTION OF DESIRABLE TREES FROM MECHANICAL OR OTHER INJURY DURING LAND DISTURBING AND CONSTRUCTION ACTIVITY. TO ENSURE THE SURVIVAL OF
DESIRABLE TREES WHERE THEY WILL BE EFFECTIVE FOR EROSION AND SEDIMENT CONTROL, WATERSHED PROTECTION, LANDSCAPE BEAUTIFICATION, DUST AND POLLUTION
CONTROL, NOISE REDUCTION, SHADE AND OTHER EN14RONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES APPLIES IN
TREE-INHAB17ED AREAS SUBJECT TO LAND DISTURBING ACTiVI PES.
339 DUST CONTROL:
REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING DEMOLITION 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 HEALTH 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 /N ACCORDANCE WITH THE VESCH.
-Ic VIRGINIA EROSION & SEDIMENT CONTROL 1992 3.36
EROSION CONTROL HANDBOOK SPECIRCA ION NUMBER
*
a®
STRAW BAIL BARRIER
3.04
DD DV MPE�
TEMPORARY DIVERSION DIKE
309
ST
♦u'o Eqm
TEMPORARY SEDIMENT TRAP
313
SB
QD
SEDIMENT BASIN
314
TIP
0
INLET PROTECTION
307
SF
SiL T FENCE
J. 05
X X X
&CONS7
,, ,
TRUCTION ENTRANCE
302
CD
'
CHECK DAM
320
FD
Mpmmmom
TEMPORARY FiLL DIVERSION
310
DV
-11
DIVERSION
3.12
PS
PS
--&-
PERMANENT SEEDING
332
TO 70 TOPSOIL/NG 3.30
Source: Adapted from Ludlow Products Brochure Place 336-1
C/P
CULVERT INLET PROTECTION
308
t,
�/j ;r
OC
DUST CONTROL
339
DC
TSD
TEMPORARY SLOPE DRAIN
315
O
SA
SAFETY FENCE
3.01
e mom=*=
TEMPORARY RIGHT=OF-WAY
3.11
DIVERSION
TABLE 3J141
ACCEPTABLE TEMPORARY SEEDING PLANT AMTEMALS
'QLTCK REFERENCE FOR ALL REGIONS'
Rau
Moil., Ge,cc 59"6. LSr.Lase!
sepi. I - Feb. 15 5150Muof
Anmu1 Rregrac�
(Toll. mulna D.o
& NI. 10)
Cemal l ir.,) Ryc
(Sacele arcane)
Feb. 16. lip - M Anmu1 R,Eras 60-TOO
(Uji R )
May I - Avy 31 German Mule, 50
(Sri.. eab,a)
source: va ➢SWC
TABLE 33I-A
LIMING REQUIREMENTS
FOR TEMPORARY SITES
Recommended Application
PH Tear LaWi0LUlLal Limestone
betwv 4.2 3 Lous per acre
42 to a2 2 tuns per acre
52 to 6 1 Eon per acre
Source: Va. mwc.
tea, -
0,,
ELEVATION OF STAKE AND
FABRIC ORIENTATION
SPECIFIC APPLICATION
DETAIL A
THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE
INLET DRAMS A RELATIVELY FLAT AREA (SLOPE NO GREATER
THAN 5%) WHERE THE INLET SHET,T OR OVERLAND FLOWS (NOT
EXCEEDING 1 C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT
APPLY TO INLETS RECEIVMG CONCENTRATED FLOWS, SUCH AS
IN STREET OR HIGHWAY MEDIANS.
Source: N.C. Erosion ea c Arman[Contrm
Rimming and De 'm, M.Onal 1988
Plate 3.07-1
EROSION CONTROL NOTES
ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION
AND SEDIMENT CONTROL PRAC7CES WILL BE CONSTRUCTED AND MA/N7AiNED
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.
ES-2: THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO THE
PRE -CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE COMMENCEMENT
OF LAND DISTURBING ACTIVITY AND ONE WEEK PRIOR TO THE FINAL
INSPECTION.
ES-3-ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE PLACED PRIOR
TO OR AS THE FIRST STEP /N CLEARING.
ES-4. A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE
MAINTAINED ON THE SITE AT ALL 77MES.
ES-5. PRIOR TO COMMENCING LAND DISTURBING ACTIVITIES /N AREAS OTHER THAN
INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OFF --SITE
BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A
SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND
APPROVAL BY THE PLAN APPROVING AUTHORITY.
ES-6: THE CONTRACTOR /S RESPONSIBLE FOR INSTALLATION OF ANY ADDITIONAL
EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND
SEDIMENTATION AS DETERMINED BY THE PLAN APPROVING AUTHORITY.
ES-7.-ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL
MEASURES AT ALL TIMES DURING LAND DISTURBING ACTIVITIES AND DURING
SITE DEVELOPMENT UNTIL FINAL STABILIZAT70N IS ACHIEVED.
ES-B.-DURING DEWATER/NG OPERATIONS, WATER WILL BE PUMPED INTO AN
APPROVED WATER FILTERING DEVICE.
ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL MEASURES
PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL EVENT. ANY
NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE EFFECTIVENESS OF THE
EROSION CONTROL DEVICES SHALL BE MADE IMMEDIATELY.
General construction notes for Erosion and Sediment Control plans
1. The plan approving authority, must bc, 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
Regulalions-
3. All erosion and sediment control measures ,Ire to be placed prior to or as the first step in
clearing.
4. A copy of the approved erosion and sediment control plan shall be maintained on the site at
all times.
5. Prior to commencing land disturbing activities in areas other than indicated on these plans
(including, but not litiited 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
approvi ng authority.
6. The contractor is responsible, for installation of any additional erosion control measures
necessary to prevent erosion and sedimentation as determined by Lhe plan approving
authority_
7. All disturbed areas are to drain to approved sediment control measures at all times dining
land disturbing activities and during site development until final stabltrzation]s achieved.
S. Daring dewatering operations, water will be pumped into an approved filtering device.
9. The contractor shall inspect all erosion control measures periodically and after each rtmoff-
pr'oducing rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of
the erosion control devices shall be made immediately.
10. All fill material to betaken front all approved, designated borrow area.
11. All waste materials shall be taken to an approved waste area. Earth fill shall be inert
nl,aterials only, free of roots, stumps, wood, rubbish, and other debris.
12. Rorrou or waste areas are to he reclaimed within 7 days of completion per Zoning
Ordinance section 5.1.28.
13. All inert materials shall be transported in compliance with section 13-301 of the Code of
Albemarle..
14. Borrow, fill or waste, activity involving, industrial -type power equipment shall be limited to
the hours of 7:00am to 9:06m.
15. Borrow, fill or wasle activity shall be conducted in a safe manner than maintains lateral
support, ororderto minimize any harardto persons, physical damage to adjacent land and
improvements, and damage to any public street because o slides, sinking, or collapse.
16. The developer shall reserve the right to i nstall, 1mi stain, remove or convert to permanent
slormwaler many cement facilities where applicable all erosion control measures required
PP 4
by this plan regardless of the sale of any lot._ unit, building or other portion of the propetty.
17.TemporarystabihYationshallhe -temporaryseedingandmulclumR. Seeding is to he at75
lbslacre. and in the months of September to February to consist a 50150 ntin of Annual
Ryegrass and Cereal Winter Rye, Orin March and April to consist of Annual Rye, or May
through August to consist of German Millet. Straw mulch is to be applied at 801bsil00sf.
Alternatives are subject to approved by the County erosion control inspector.
18. Permanenl stabilization shall be lime and fertilizer, permanent seedimk and mulch -
Agricultural rade limestone. shall be a lied at 90lbsf1000sf, incorporated into the to 4-6
g PP P P
inches of soil- Fertilizer shall be applied at t 000lbsfacre and consist of a 10-20-10 nutrient
mix. Permanent seeding shall be applied at 1801bs/acre and consist of 95% Kentucky 31 or
�;
Tall Fescue and 0 S o Perennial Ryegrass or, Kentucky Bluegrass. ,Straw mulch is to he
applied at 80lbs1100sf. Alternatives are subject to approved by the County erosion control
inspector.
19. Maintenance: All measures are to be. inspected weekly and after each rainfall. Any damage
or eloRging to structural measures iS to be repair imnrecli,ILcly. Sill traps are Lobe cleaned
when 50% of the wet storage volume is tilled 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 collects ng sedi ment to half their height nnrst he cleaned and repaired
immediately.
20. All tcrtrporary erosion and sediment control rrle<asures arc to be Lcnioved within 30 days of
0
final site stabilisation, when measures areno lnnrer needed, subject to approval by the
County erosion control inspector.
21. This plan shall be void if theowner does not obtain a permit within I year of the date of
approval, (Water Protection ordinance section 17 204G J
22. Permanent vegetation shall be installed on all denuded areas within nine (9) nmutlis after
the date the land disturbing activity conunenced. (R'ater Protection Ordinance section 17-
207B)
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DESCRIPTION OF EROSION & SEDIMENT
CONTROL MEASURES:
EROSION AND SEDIMENT CONTROL MEASURES:
IT IS AN77CIPATED TO USE CONSTRUCTION ENTRANCES DIVERSION DIKES, EXISTING SEDIMENT BASINS
AND SILT FENCES WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING WILL
BE USED IMMEDIATELY FOLLOWNG ALL LAND DISTURBANCE ACTIVITIES. TEMPORARY STOCKPILE
AREAS WILL BE MAINTAINED FROM TOPSOIL THAT WILL BE STRIPPED FROM AREAS TO BE GRADED
AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL BE ON SITE AND SHALL BE
STABILIZED Wi7H A TEMPORARY VEGETATIVE COVER. PERMANENT SEEDING WILL BE PERFORMED FOR
ALL AREAS WHICH WILL NO LONGER BE EXCAVATED AND WHERE CONSTRUCTION ACTIVITIES HAVE
CEASED. PERMANENT SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE
LEFT DORMANT FOR A YEAR OR MORE. SELECTION 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 GERMINATING
VEGETATION IMMEDIATELY FOLLOWING GRADING OF THOSE AREAS. SELECTION OF SEED MIXTURE WILL
DEPEND ON THE TIME OF YEAR APPLIED.
CONSTRUCTION ENTRANCE:
A STABILIZED PAVED CONSTRUCTION ENTRANCE WITH A WASH RACK 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.
SILT FENCE.
A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED ACROSS
AND ATTACHED TO SUPPORTING POSTS AND EN7RENCHED. TO INTERCEPT AND DETAIN SMALL
AMOUNTS OF SEDIMENT FROM DISTURBED AREAS DURING CONSTRUCTION OPERATIONS /N ORDER TO
PREVENT SEDIMENT FROM LEAVING THE S17E 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 /N
ACCORDANCE NTH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH).
PERMANENT STABILIZATION:
THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANING SEED.
TO REDUCE EROSION AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO PERMANENTLY
STABILIZE DISTURBED AREAS /N A MANNER 7HAT 1S ECONOMICAL, ADAPTABLE TO SITE CONDITIONS
AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT MATERIALS. TO IMPROVE WILDLIFE
HABITAT TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION ACTIVITIES, ALL
AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER.
TEMPORARY SEEDING.
THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING WITH
APPROPRIATE RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATION 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 -SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS EXPOSED DURING CONSTRUCTION
UNTIL PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED.
DUST CONTROL:
REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND
CONSTRUCTION AC77WTIES.
TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE
THE PRESENCE OF AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS TRAFFIC SAFETY
PROBLEMS OR HARM 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 VESCH.
TEMPORARY DIVERSION DIKE.,
A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA
WHICH DiVERTS OFF -SITE RUNOFF AWAY FROM UNPROTECTED SLOPES AND TO A STABILIZED OUTLET
OR TO DIVERT SEDIMENT -LADEN RUNOFF TO A SEDIMENT TRAPPING STRUCTURE. MAXIMUM
EFFECTIVE LIVE IS 18 MONTHS.
ROCK CHECK DAMS.,
SMALL, TEMPORARY STONE DAMS CONSTRUCTED ACROSS A DRAINAGE DITCH TO REDUCE THE
VELOCITY OF CONCENTRATED FLOWS, REDUCING EROSION OF 7HE SWALE OR DITCH. L/Mi7ED TO USE
IN SMALL OPEN CHANNELS .WHICH DRAIN 10 ACRES OR LESS; SHOULD NOT BE USED iN LiVE
STREAMS.
STORM DRAIN INLET PROTECTION.,
THE INSTALLATION OF VARIOUS KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS OR
CURB INLET STRUCTURES PRiOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA; LIMITED TO
DRAINAGE AREAS NOT EXCEEDING ONE ACRE, AND NOT INTENDED TO CONTROL LARGE,
CONCENTRATED STORMWATER FLOWS.
TEMPORARY SEDIMENT TRAP.,
A SMALL PONDING AREA, FORMED BY CONSTRUCTING AN EARTHEN EMBANKMENT WITH A STONE
OUTLET ACROSS A DRAINAGE SWALE TO DETAIN SEDIMENT -LADEN RUNOFF FROM SMALL DISTURBED
AREAS FOR ENOUGH TIME TO ALLOW MOST TO THE SUSPENDED SOLIDS TO SETTLE OUT. MAXIMUM
EFFECTIVE LiFE /S 18 MONTHS.
TEMPORARY SEDIMENT BASIN.
A TEMPORARY BARRIER OR DAM WITH CONTROLLED STORMW47ER RELEASE STRUCTURES WHICH IS
FORMED BY CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. IT IS
USED TO DETAIN SEDIMENT -LADEN RUNOFF FROM DRAINAGE AREAS 3ACRES OR GREATER FOR
ENOUGH TIME TO ALLOW MOST OF THE SUSPENDED SOLIDS TO SETTLE OUT. 1T CAN BE
CONSTRUCTED ONLY WHERE 7HERE iS SUFFICIENT SPACE AND APPROPRIATE TOPOGRAPHY MAXIMUM
EFFECTIVE LIFE iS 18 MON7HS UNLESS DESIGNED AS A PERMANENT POND BY A QUALIFIED
PROFESSIONAL.
OUTLET PROTECTION:
THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/OR STILLING BASINS BELOW STORM DRAIN
OUTLETS TO REDUCE EROSION AND UNDER -CUTTING FROM SCOURING AT OUTLETS AND TO REDUCE
FLOW VELOCITIES BEFORE STORMWATER ENTERS RECEIVING CHANNELS BELOW THESE OUTLETS.
CULVERT INLET PROTECTION:
A SEDIMENT FILTER LOCATED AT THE INLET TO STORM SEWER CULVERTS WHICH PREVENTS SEDIMENT
FROM ENTERING, ACCUMULATING IN AND BEING 7RANSFERRED BY 774E CULVERT IT ALSO PROVIDES
EROSION CONTROL AT CULVERTS DURING THE PHASE OF A PROJECT WHERE ELEVATIONS AND
DRAINAGE PATTERNS ARE CHANGING, CAUSING ORIGINAL CONTROL MEASURES TO BE INEFFECTIVE.
SAFETY FENCE:
A PR07ECTIVE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL
MEASURE.
STORMWATER RUN-OFF CONSIDERATIONS:
STORMWATER MANAGEMENT THE STORMWATER RUNOFF FROM THIS PROJECT DRAINS
TEMPORARILY TO THE PROPOSED SEDIMENT TRAP. THE SEDIMENT TRAP WILL BE
CONVERTED TO A PERMANENT STORMWATER MANAGEMENT FACILITY AFTER THE
CONSTRUCTION OF THE PROPOSED PARKING LOT EXPANSION.
SOIL DESCRIPTION.•
23B - YADKIN CLAY LOAM - 29 TO 7Z SLOPES. THESE DEEP, WELL DRAINED
SLOPES ARE FOUND ON SIDE OF HILL AND RIDGES VERY LOW TO HIGH
RUNOFF, WITH MODERATE PERMEABILITY.
72D3 - RABUN CLAY - SEVERELY ERODED, 15Z TO 25Z SLOPES. THESE DEEP,
WELL DRAINED SOiLS ARE FOUND ON GENTLY SLOPING TO STEEP RIDGES
AND MOUNTAIN SLOPES. MODERATE TO RAPID RUNOFF, W/7H MODERATE
PERMEABILITY.
p.
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NOVEr/BEP. THROUGH FEBFIJAR, IS !h'INTER R"E
NJ I-8
1. _N1E AND F-FTI TER N-EDE SFA__ EE DEE=MI'dED BY SOIL
IF,T, AM AP'II73 IN CC.oR :,1 ,L- WITH V-=:H sTi_ 33:)-
. 5L GN I-) _L N ILCHLO IVMLulr IL 1 1' N OM,LL[1CN
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OPS PERMANENT SEEDING SCHEDULE
NO SCALE
(STD. & SPEC. 3.32 OF VIRGINIA EROSION &
SEDIMENT CONTROL HANDBOOK, 3RD ED.)
EROSION CONTROL NOTES & NARRATIVE
PURPOSE:
THE PURPOSE OF THIS LAND DISTURBING ACTIVTY IS TO EXPAND THE EXISTING
WAREHOUSE BUILDING FOR TRUMP WINERY. THE TOTAL AREA TO BE DISTURBED WITH
THE PROJECT AREA iS 1.37 ACRES THIS INCLUDES ALL THE DISTURBED AREA ON THE
PROPERTY. THE TOTAL AREA FOR THE VSMP PLAN IS 2.15 ACRES. THiS INCLUDES
THE AREA BELOW THE SiTE WITH THE EXISTING SILT FENCE AROUND THAT WAS
RIOT 0 E STAR OF DESIGN ANDCONSTRUCTION FO HE WINERY
INSTALLED P 7 7N T NA RT
EXPANSION.
EXISTING SITE CONDITIONS:
THIS SiTE iS CURRENTLY A VINEYARD WAREHOUSE AND OPEN SPACE ON THE TRUMP
WINERY PROPERTY. THE PROJECT AREA /S SURROUNDED BY WOODS AND VINEYARDS.
ADJACENT AREAS.
THIS SiTE iS SURROUNDED BY RURAL FARM LAND AND DENSE WOODS.
OFFSITE LAND DISTURBANCE:
NO CONSTRUCTION ACTIVITIES ARE PROPOSED OUTSIDE OF THE LIMITS OF DISTURBANCE.
CRITICAL AREAS:
THERE ARE NO CRITICAL SLOPES WITHIN THE PROJECT BOUNDARY. THE PROPERTY HAS
CRITICAL SLOPE AREAS, BUT THESE AREAS ARE WELL OUTSIDE OF THE LIMITS OF THIS
PROJECT AREA.
SOILS:
SOILS MAP IS INCORPORATED INTO THE EROSION CONTROL PLANS WITH SOILS DATA
INCLUDED WITH THiS NARRATIVE.
SEQUENCE OF CONSTRUCTION:
1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE- CONS TRUC T70N MEETING AS
REQUIRED.
2. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTON
PROCESS WITHOUT THE APPROVAL FROM THE INSPECTOR ON THE PROJECT
J. INSTALL THE PROPOSED GRAVEL CONSTRUCTION ENTRANCE WITH WASH AREA AS
SHOWN ON THE PLANS. CONSTRUCTION ENTRANCES TO BE INSTALLED WHERE
CONSTRUCTION VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS, PROVISIONS
SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY (VEHICULAR)
TRACKING ONTO THE PAVED SURFACE WHERE SEDIMENT iS TRANSPORTED ONTO A
PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED THOROUGHLY AT THE END
OF EACH DAY SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR
SWEEPING AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET
WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT 1S REMOVED IN THIS MANNER.
4. INSTALL THE INITIAL PERIMETER MEASURES, INCLUDING THE SEDIMENT TRAP, SILT
FENCE, AND DIVERSION BERMS AS SHOWN ON THE PHASE / EROSION CONTROL
SHEET. THE EXISTING ENTRANCE WILL SERVE AS THE CONSTRUCTION ENTRANCE FOR
THE PROJECT UNTIL THE PERIMETER E&S MEASURES HAVE BEEN INSTALLED.
MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST
STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL
BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE.
5. STABILIZE THE SLOPES OF THE SEDIMENT TRAP AND DIVERSION BERM WITH
BLANKET MATTING TO PREVENT DOWNSTREAM EROSION FROM THESE E&S
MEASURES. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN STRUCTURES
SUCH AS DAMS, DIKES, AND DIVERSiONS IMMEDIATELY AFTER INSTALLATION.
6. ONCE ALL THE EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE
PHASE I EROSION CONTROL PLAN AND THE INSPECTOR HAS APPROVED THE
EROSION CONTROL MEASURES, THE CONTRACTOR CAN BEGIN GRADING THE SITE AS
SHOWN ON THE PHASE ll E&S PLAN. PERMANENT OR TEMPORARY SOIL
STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER
FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL
STABILIZATION SHALL BE APPLIED WITHIN SEVEN DAYS TO DENUDED AREAS THAT
MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR
LONGER THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS
THAT ARE TO BE LEFT DORMANT FOR MORE THAN ONE YEAR.
7. ONCE THE SITE iS ROUGH GRADED, THE CONTRACTOR SHALL BEGIN INSTALLATION OF
THE DRAINAGE PIPES AND GRAVEL PARKING LOT. INLET PROTECTION SHALL BE
INSPECTED AFTER EACH RAINFALL EVENT AND REPAIRS SHALL BE MADE AS NEEDED.
8. NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AREAS ARE STABILIZED AND
THE INSPECTOR GIVES PERMISSION THE PROPOSED SEDIMENT TRAP SHALL BE
CONVERTED TO SWM FACILITY AFTER THE CONSTRUCTION OF THE PARKING LOT HAS
BEEN COMPLETED. SEE SHEET 4 FOR ADDITIONAL SEDIMENT TRAP CONVERSION
DETAILS.
9. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE V/RG/NIA EROSION
AND SEDIMENT CONTROL HANDBOOK, REMOVING ONLY WHEN APPROVED BY THE
LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE MTN THE WRG/N/A EROSION AND
SEDIMENT CONTROL HANDBOOK.
10. ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED
WITHIN 30 DAYS AFTER FINAL S17E STABILIZAT70N OR AFTER THE TEMPORARY
MEASURES ARE NO LONGER NEEDED UNLESS OTHERWISE AUTHORIZED BY THE
LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL
AREAS RESULTING FROM THE DISPOSITION OF TEMPORARY MEASURES SHALL BE
PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION.
TEMPORARY SEEDING:
ALL DENUDED AREAS WHICH WiLL BE LEFT DORMANT FOR EXTENDED PERIODS OF TiME SHALL
BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETA7ON IMMEDIATELY FOLLOWING
GRADING. SELECTION OF THE SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR AND WILL
BE APPLIED TO DISTURBED ARES THAT WILL NOT BE BROUGHT TO FINAL GRADE WITHIN 30
DAYS.
PLANTS SHOULD BE SELECTED APPROPRIATE TO 7HE SEASON AND S17E CONDITIONS FROM
TABLES 331E AND 3.31C. NOTE THAT TABLE 331B PRESENTS PLANTS WHICH CAN BE USED
WITHOUT EXTENSIVE EVALUATION OF SITE CONDITIONS; TABLE 337C PRESENTS MORE
IN-DEPTH INFORMATION ON THE PLANT MATERIALS.
TO CONTROL EROSION ON BARE SOIL SURFACES, PLANTS MUST BE ABLE TO GERMINATE AND
GROW. SEEDBED PREPARATION /S ESSENTIAL.
AN EVALUATION SHOULD BE CONDUCTED TO DETERMINE IF LiME IS NECESSARY FOR
TEMPORARY SEEDING. TABLE 3.31A MAY BE USED TO DETERMINE THE ACTUAL NEED ALONG
WiTH SUGGESTED APPLICATION RATES:
FERTILIZER SHALL BE APPLIED AS 600 LBS/ACRE OF 10-20-10 (14 LBS/1,000 SQ. FT.) OR
EQUIVALENT NUTRIENTS. LIME AND FERTILIZER SHALL BE INCORPORATED INTO THE TOP 2 TO
4 INCHES OF THE SOiL 1F POSSIBLE.
IF THE AREA HAS BEEN RECENTLY LOOSENED OR DISTURBED, NO FURTHER ROUGHENING /S
REQUIRED. WHEN THE AREA IS COMPACTED, CRUSTED, OR HARDENED, THE SOIL SHALL BE
LOOSENED BY D/SC/NG, RAKING, HARROWING, OR OTHER ACCEPTABLE MEANS. TRACKING WITH
BULLDOZER CLEATS /S MOST EFFECTIVE ON SANDY SOILS. THIS PRACTICE OFTEN CAUSES
UNDUE COMPACTION OF THE SOIL SURFACE, ESPECIALLY IN CLAYEY SOiLS, AND DOES NOT
AID PLANT GROWTH AS EFFECTIVELY AS OTHER METHODS OF SURFACE ROUGHENING.
SEED SHALL BE EVENLY APPLIED W177H A BROADCAST SEEDER, DRILL, CULTIPACKER SEEDER
OR HYDROSEEDER. SMALL GRAINS SHALL BE PLANTED NO MORE THAN ij INCHES DEEP.
SMALL SEEDS, SUCH AS KENTUCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN #
INCH DEEP. OTHER GRASSES AND LEGUMES SHOULD BE PLANTED FROM 4 INCH TO j DEEP.
SEEDINGS MADE IN FALL FOR WINTER COVER AND DURING HOT AND DRY SUMMER MONTHS
SHALL BE MULCHED ACCORDING TO MULCHING, STD. & SPEC. 335, EXCEPT THAT
HYDROMULCHES (FIBER MULCH) WILL NOT BE CONSIDERED ADEQUATE. STRAW MULCH SHOULD
BE USED DURING THESE PERIODS.
AREAS WHICH FAIL TO ESTABLISH VEGETATIVE COVER ADEQUATE TO PREVENT RILL EROSION
WiLL BE RE -SEEDED AS SOON AS SUCH AREAS ARE /DEN77FIED.
PERMANENT STABILIZATION:
PERMANENT SEEDING WiLL BE APPLIED TO ALL DISTURBED AREAS AS PER THE PERMANENT
STABILIZATION OF THIS EROSION & SEDIMENT CONTROL NARRATIVE.
AFTER CONSTRUCTION /S COMPLETED, ALL DISTURBED AREAS OF THE SiTE WILL BE LIMED,
FERTILIZED, AND SEEDED AS PER CURRENT VDOT STANDARDS 77-IIS SHALL CONSIST OF
7HE FOLLOWING:
TOP SOiL - 2" DEPTH
LIME - 2 TONS/ACRE
FERTILIZER - 600 LBS/ACRE OF 15-JO-15
SEED - ERNS 5311 CONSERVATION SEED MIX - ERNMX-114 (45 LBS/ACRE PENNLAWN
CREEPING RED FESCUE, 37.5 LBS/ACRE ARGILS KENTUCKY BLUEGRASS, 375 LBS/ACRE
PARK KEN7UCKY BLUEGRASS, 15 LBSIACRE ANNUAL RYEGRASS & 15 LBS/ACRE PLEASURE
PERENNIAL AFTER THESE AREAS ARE STABILIZED THEY WiLL BE MOWED AND MAINTAINED
ON A REGULAR BASIS.
MAINTENANCE:
IN GENERAL, ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CHECKED DAILY
AND AFTER EACH SIGNIFICANT RAINFALL. SPECIFIC ATTENTION WiLL BE GIVEN TO THE
FOLLOWING ITEMS:
A. SEDIMENT BASINS AND/OR TRAPS MLL BE CLEANED AND MAINTAINED iN
ACCORDANCE KITH THE VIRGIWA EROSION & SEDIMENT CONTROL HANDBOOK.
B. ALL GRAVEL OUTLETS WILL BE CHECKED REGULARLY FOR SEDIMENT BUILDUP THAT
WiLL PREVENT PROPER DRAINAGE. IF THE GRAVEL IS CLOGGED BY SEDIMENT THE
GRAVEL WILL BE REMOVED AND CLEANED, OR IT KILL 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 FERTILIZED AND RESEEDED AS NEEDED.
SCOT R. t. HHNB�
Lic. No. 035791 '_
I�LJ 6/3/20 L-
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I inch - 30 PL.
PHASE I EROSION & SEDIMENT CONTROL PLAN Sediment Trap Design#1
ESC Ph. II drainage area (acres) (<3) 1.54
♦♦♦��♦♦. trap volumes:
elevation (ft) area (sf) volume(cf) volume(cy)
♦♦ �♦ j 679.00 570.0 0 0.0
�� �♦♦ 680.00 1075.0 809 30.0
,♦ ♦♦ - 681.00 1661.0 2,167 80.2
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R. D \
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�' .♦ MY STOMGE NM T{ YKbIL
682.00 2316.0 4,146 153.6
�* ♦♦ 683.00 3031.0 6,812 252.3
'♦� 684.00 3813.0 10,226 378.7 ME
tExrvwrto `artn am w
♦♦ / wet storage: •9FE PINE as-i cwmE .WLAE"% cws I R~
♦ / wet storage required (cy) (67*DA) 103.2
♦♦� -� , bottom of stone weir (ft) 681.40
♦ • wet storage provided at this elevation (cy) TWA
♦♦♦ i. slope of wet storage sides 3:1
weir length (ft) (6xDA)
EXISTING GRAVEL ♦♦♦ / dry storage: bottom of trap elevation (ft)
jw dry storage required (cy) (67*DA) 103.2 bottom trap dimensions:
ACCESS ROAD + * crest of stone weir 682.75 top of dam elevation (ft)
• _ _ _ _ - - / dry storage provided at this elevation (cy) 118.3 top vAdth of dam (ft) _
slope of drystoragesides 3:1 to Va dimensions
rx
s*Alaw
IMP♦j♦ ♦�j. EXISTING FARM WINERY
NOTE: THIS CONSTRUCTION
ENTRANCE SHALL BE INSTALLED,
OPERATED, AND MAINTAINED BY THE
CONTRACTOR. ALL CONSTRUCTION
TRAFFIC IN THIS AREA SHALL UTILIZE
THIS CONSTRUCTION ENTRANCE.
ESC PHASE I- ♦♦♦�♦, ♦i♦♦♦♦ BUILDING
SEA ZNT aRAP D♦♦ ♦♦♦
- 44 ��� ♦♦
♦ 1,
♦ I
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679
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684
10
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CONSTRUCTIONENTRANCE- . ve- -
USE EXISTING GRAVEL ROAD♦� `
AS THE CONSTRUCTION CE ♦� DRAINAG
ENTRAN CE(MIN.12'x70') �- - ♦♦ AREA = 0.2 AC �11 ti- II E �
-- \' ♦♦ BY-PASS ,G
S \
6 EEL _1'-I V ♦ DISTURB AREA
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SCOTT R. C LINS
Lic. No 035791
6/3/20
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LOCATION OF CONTRACTOR ♦♦ IX N I-kD
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PARKING/STAGING AREA i -= �♦t' ° . ' ♦j♦ : , \
oWi X1 I S
LOCATION OF ♦ ♦ PROPOSED SILT FENCE
PORTA-JOHNS �1� „ �1� SF FOR THIS
LOCATION OF RWD HEN it VIAI K �� ��� CONSTRUCTION AREA
RAIN GAUGE ELE l_a - - 1� I0 Q
LOCATION OF �
DUMPSTER`. 1♦ Z I`
La
FUUELINIGTALOCTONONK � �IL� --s96 ---- �,r:�r�wn �I�♦�♦� id I M
PROPOSED SEDIMENT TRAPPING TS ♦♦♦ d 7
DEVICE TO BE USED FOR THE �� ♦ Icy') L
CONSTRUCTION ENTRANCE'S
y � ♦ I-" - � Q
TEMPORARY FLASH RUNOFF & �rPCE ♦ J
FOR CONCRETE WASH OUT j. ♦♦♦♦ C O
PROPOSED DD I IN
DIVERSION BERM j ♦ PROPOSED DRAINAGE N
- ♦♦♦♦ DIVIDE, TYP. Q z
> (j) p
i DC ♦♦ W > U
J
LIMITS OF �� J z
DISTURBANCE FOR > % w
PROJECT AREA =1.37AC - FLO RROWC(TYP.) ♦�TION� DD U) ` C
♦ PROPOSED Q _
♦♦♦ DIVERSION BERM / L9 H� Q
■w
® ♦ p z w
-684 ♦♦ SAFETY FENCE TO J V)
.r -_ _�sz �♦♦♦ ENCOMPASS / ,,,x
SEDIMENTTRAP Q W
�1� �1w =_ _ - ♦♦ PROPOSED ESC LIMITS OF DISTURBANCE, TYP. _
ST / ♦ I THE BOUNDARY FOR THE LIMITS OF X
OP2 Z
��� no / ♦♦ L=g W=4 DISTURBANCE, WHICH TOTALS1.37AC, I O
♦ e ♦ RIPRAP WEIR DEPTH=2' DEFINES THE BOUNDARY FOR THE VRRM w W
PS •�I /` WATER QUALITY CALCULATIONS. LY r C/)
® I ,60� � , I ♦
TOTAL LIMITS OF VSMP ®y -� W=20'
PLAN=2.15 AC A+ ��
` \+\ +°�®♦ \ R 71 T SF EXISTING SILT FENCE AROUND PERIMETER OF W W
� & ��♦I - EXISTING SILT FE CEEAREA FOR ITO REMAOF THE IN.
� x
♦j r, / / ADDITIONAL EROSION CONTROL MEASURES W V)
I\ /6 opi DEPTH-z' SHALL BE IMPLEMENTED TO CONTAIN THE Jj
PROPOSED BSION WITHIN
M s�f�♦� r"' ����rTHE FOOTPRINTDISTURBANCE OAS SHOWN OR THE NN THIS PLAN. � O
BLANKET MATTING ��aa �� f��11� '" U)
�f- ~
/ PROPOSED SILT FENCE FOR THIS SF _ __- EXISTING DIRT STOCKPI ILE AREA TO BE USED w z
CONSTRUCTION AREA \ FOR THE BUILDING PAD AND PARKING LOT
CONSTRUCTION. O
X Q U
CONTRACTOR SHALL LOCATE & SURROUND THE (�
l�
} / PROPOSED CONSERVATION AREA WITH ORANGE O
SAFETY FENCE PRIOR TO STARTING Z
/ ADDITIONAL o.78 ACRES OUTSIDE OF THE � y!� CONSTRUCTION. SAFETY FENCE IN THIS LOCATION O N
PROJECT LIMITS BUT PART OF THE OVERALL X �C / S INTENDED TO PREVENT DISTURBANCES WITHIN
Ln
EROSION CONTROL PLAN. AREATO REMAIN _ THE CONSERVATION AREA.
� 1 vl v I I F,
UNDISTURBED, EXCEPT FOR THE INSTALLED
SILT FENCE. THE DISTURBANCE FOR THE SILT W
FENCE HAS BEEN INCLUDED IN THE OVERALL
PROJECT LIMITS OF DISTURBANCE AREA
a w
m
GRAPHIC SCALE JOB NO.
192178
39- � o a5 3a 60
- - - - - SCALE
1"=3 D'
IN F'EE'I 1 SHEET NO.
I inch - 30 ft. 3
SEDIMENTTRAP CONVERSION PLAN
PHASE 11 EROSION & SEDIMENT CONTROL PLAN i. THE SEDIMENTTRAP SHALL NOT BE CONVERTED WITHOUT PRIOR PAS;T CURNER OF UF1H5TTWFK)R FINAL GRADING & DRAINAGE PLAN
APPROVAL FROM THE ESC INSPECTOR. BAG INTO 9'L"
2. THE PROPOSED RISER AND BARREL SYSTEM, WHICH ARE TO BE (rM,PM,U TOF'VIEW
CONSTRUCTED WITH THE SEDIMENTTRAP ATTHE BEGINNING OFTHE
4% %
.4% PROJECT TO MINIMIZE FUTURE DISTURBANCES, SHALL REMAIN %
WATERTIGHT DURING THE CONSTRUCTION PHASES. F 40P 4iio
3. THE RIPRAP LINED SPILLWAY, WHICH SHALL BE CONSTRUCTED WITH THEMary In raEa<
------- SEDIMENT TRAP AT THE BEGINNING OF THE PROJECT, SHALL REMAIN. THE 40'
SPILLWAY SHALL BE CHECKED FOR SEDIMENT DEPOSITS, EROSION& %
SETTLEMENT, AND CORRECTIVE MEASURES SHALL BE IMPLEMENTED AS
NEEDED. DIRTBAG 4f
4. ONCE SEDIMENTTRAP #i IS READYTO BE CONVERTED, THE TRAP SHALL BE
2 PROPERLY DEWATERED. SEDIMENT TRAP #i SHALL BE DEWATERED WITH A L 4f
♦ ft PUMP (WITH A FILTER ON THE SUCTION END) AND A SEDIMENT FILTER BAG.
♦SEETHE PROPOSED'ACF DIRTBAG HD'SEDIMENT FILTER DETAIL ON THIS
AOCOPAMATES UP
SHEET, OR EQUIVALENT, FOR THE SEDIMENTTRAP DEWATERING DEVICE. TOVDISCHARGE
DEWATERI NG OF TH E TRAP SHALL OCCU R NO SOON ER THAN 48 H OURS LENGTH HUSE
AFTER TH E LAST RAIN FALL EVENT TO ENSU RE P ROPE RTY SETTLI ING TIME IN
THETRAP.
♦ 6. MUD/SEDIMENT FROM THE BOTTOM OF THE SEDIMENT TRAP SHALL NOT BE NOUES:
♦ PUMPED, B UT SHALL BE RE MOVED. 0 NCE TH E WATER AND SEDIMENT HAVE 1) DIN I BAG 10 BE PLA Ci=J ON AUUHLUA IL R 51 RAW
EXISTING GRAVEL2) SEAW MUST BE HIGH STRENGTH D DUELE STITCHED -I- SEAMS
BEEN REMOVED, THE CONTRACTOR SHALL REGRADE THE SEDIMENTTRAP, 3) WIM MUST BE TESTED AID _R A3TM D-4864. ACF TEST RESULTS AVAILABLE UPON REDUEST
ACCESS ROAD AS REQUIRED, TO ACHIEVE THE PROPOSED DESIGN SHOWN ON SHEET 6.
CONTRACTOR SHALL USE STRUCTURAL FILL WHEN MODIFYING THE TRAP
AND FINE GRADING THE FACILITY DURING ITS CONVERSION.
low, A* CROSS SECTION
7 WHILE THE TRAP 15 BEING FINE GRADED TO THE PROPOSED SWM FACILITY'S
PERMANENT GRADING PLAN, THE CONTRACTOR SHALL BEGIN
A0 CONSTRUCTINGTHE LEVEL SPREADER. THE CONTRACTOR SHALL TAKE - - - ---
# EXTRA PRECAUTIONS TO ENSURE THE PROPOSED CONSERVATION AREA IS
# NOT DISTURBED.
10.
go
B. ONCE THE SWM FACILITY IS AT FINAL GRADE ANDTHE LEVEL SPREADER
HAS BEEN CONSTRUCTED, THE CONTRACTOR SHALL STABILIZE THE
FACILITY's GRASS GROUNDCOVER. AT THIS TIME THE RISER AND BARREL DB55 FABRIC PROPERTIES
SYSTEM CAN BE MADE OPERATIONAL AND WILL NO LONGER BE REQUIRED PROPERTY TEST METHOD M)%RV
a TO BE WATERTIGHT. TENSILE STRENGTH ASTIM 5�4�32 205 LBS
0 LLIONQATION A5TM U-4432 501% %
al -IV*, -
w -BR PU14CTURE ASTM 0-6241 525 ALBS
A
In UV RESISTANCE ASTIM 0 4255 -10%
ft EXISTING FARM WINERY A S ASTM D-4751 09 US SIEVE DITCH SUBAREA
PERMIIFTIVIFY ASTM D 4491 1.4 SEC-]
ESC PHASE 11 BUILDING FLOW RATE ASTIM D 4491 90 GPMISF 1.09 ac.
SEDIMENT -TRAP
TII min.
I IF AGIF UB55 DITUI 1
DA= 1--S4 ac.
Z **4
oirthogz Seam TeSt III e Kul Is (u I ASTIA 0"94) offluamm J
Wave" Dirtbag Slardard Sizes: --------------
•
L I Alli Md.kirluili Lcad 934 lb� F "o E' P I
�ADE,�i IT) 11,.TER
xiri HIT Sueiislii 140211imt 9 x 20' 1HF)ER, ' RF4 IN i�T[,
A, k FA FIFF 'N�� FAICh-'
NICTE"E'Idt lesIvesL[I wds derised trun
milenal fadure ratherthai a stitch FaIII-I-e. 12' x 18.75,
4f
r
Costom Sizo5 jtailalz e uoon rruiKst.
METHOD
MODIFIED RATIONAL ME If
ii I I 111,41� EPIC- EVRII IiI i"f IT I) STY. PkTII`111flj�Tj BENF1 I
in TIME OF CONCENTRATION PATH
r,l �! 44 _7' (11 min __FY
Q �y FLLVA IjN 100' OF OLE w/ D ELEV )N-E:I 1/ 44',
-1 350'OF CONIC. FLOW w/ D ELEV=24'(1 min.)
L-IIPFCP(;RC,IIP
a - i _,'NK F,T(-PS W 0 (*PER THE VESCH, CHET. 5_ F,T FES 1I
I �Y� 5'x10'x6" ELEC,
CONSTRUCTION ENTRANCE- w -PLATES 5-1 & 5-2) 4#
SERVICE SLAB
USE EXISTING GRAVEL ROAD
Vx30x(S" MECHANICAL
AS THE CONSTRUCTION CE ♦DRAINAG NAISERVICE SLAB
f ENT CAP,5.'
X 70) ♦AREA = 0.2 AC
ENTRANCE (MIN, 12' 1[* 4PR0i[ No I,j 'I
BY-PASS G
TE,B0'R'♦ , __FI -
• -IDISTAAII I- ' # 1 4 1
`H 0'
o
OTT R- C LINS��
1jc. No. 035791,��
6/3/20
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LOCATION OF CONTRACTOR
41 Kr D
PARKING/STAGING AREA
J j NF 1W XT CS.5
Z
% PROPOSED SILT FENCE
LOCATION OF
% TA-_ SF FORTHIS
% _j
LOCATION OF CONSTRUCTION AREA
POR JOHNS WD LIENC I EIANK J N'-'[ I
AVEL 4,U, 98,96 ''E_
RAIN GAUGE E 7'4_' a6
PROPOSED BLDG
LOCATION OF - --- ---- FEE= 699.00 Cy) Uj
DUMPSTER
FT FA1,F -M7 74FII
ce)
LOCATION OF 0, --- ---
IN11
Z
PROPOSED co
FUELING TANK 7, 1 - r# Z
L-1 HA, 4' FVC - 00
•
IV( EXPANSION BUILDING TI -
4
IP
PROPOSED SEDIMENT TRAPPING TS
co
DEVICE TO BE USED FOR THE
0, /
•
CONSTRUCTION ENTRANCE'S a - --- - - / , 4' �4
TEMPORARY FLASH RUNOFF & "in11rN _j 06
FOR CONCRETE WASHOUT /in 695.0 C:) CL
in M 0
PROPOSED
U U !me/ 04 a- Z
DIVERSION BERM - - - - - - - - - -- PROPOSED DRAINAGE -1 695.0
DIVIDE, TYP. CT - Q
12" 21A COMP
PS / / /,� GRAVEL PARKING LC >
FLOW ARROW LU
z IV NEW (3�) PIPES
_j
N FES ....
DRAIN
_J
LIMITS OF
DISTURBANCE FOR >
PROJECT AREA =1-37 AC DDI PROPOSED 10'GRA55 U) Z
- - - - - - - PROPOSED ACCESS ROAD LILI <
DIVERSION BERM Z
F--
PROPOSED GRAVEL L9 0
I _j
PARKING LOT x 'SAFETY FENCE TO LU
7
ENCOMPASS
SEDIMENTTRAP PROPOSED DRAINAGE <
PROPOSED ESC LIMITS OF DISTURBANCE, TYP.
1: CL
DITCH WITH A TALL
THE BOUNDARY FOR THE LIMITS OF Y X
ST FESCUE LINING
0 P 2 L=8', W=4' DISTURBANCE, WHICH TOTALS 2 37 AC,
el DEPTH=2' DEFINES THE BOUNDARY FOR THE VRRM LU
PS WATER QUALITY CALCULATIONS. (SLOPE=4.97.) 0
41 RIPRAP WEIR Q 2.57 CFS LLI >-
ELEV.=682.75 V 3.99 FPS GRASS
TOTAL LIMITS OF VSMP W=20, 3.38 CF DITCHLL
PS Q -
PLAN=2-.isAC LU
EXISTING SILT FIE 0.51 FT RETENTION BASIN U) Z
S FENCE AROUND PERIMETER OF DI= PROPOSED GRASS DRY 2!
�kl I I AREA FOR EXPANSION OF THE WINERY. NOTE: WITH OUTFALL, SEE SWIM SHEETS 5& 6 FOR 0
EKISTING SILT FENCE TO REMAIN. -Se
DETAILS
PER THE VESCH, CHPT 5, TABLE
Lu
L=lo', W_4' ADDITIONAL EROSION CONTROL MEASURES 5-14, TALL FESCUE GRASS- HAS Vi SHALL BE IMPLEMENTED TO CONTAIN THE LU
DEPTH=2'
-- ------- A MAXIMUM PERMISSIBLE
DISTURBANCE FOR THE EXPANSION WITHIN
PROPOSED --OF 5-ft/s FOR Z
VELOCITY
THE FOOTPRINT AS SHOWN ON THIS PLAN. OL BM
BLANKET MATTING CHANNELS WITH SLOPES < 5%. U) Uj
- - --------- - -- SI`\
------ - - ------
--------- \ -------- Ly
- ---- 0i I I I -- ----- I
PROPOSED SILT FENCE FOR THIS EXISTING DIRTSTOCKPIILE AREA TO BE USED
SF I PROPOSED SWM OUTFALL DESIGN WITH, Uj
CONSTRUCTION AREA FOR THE BUILDING PAD AND PARKING LOT
--- 676 CONSTRUCTION. LEVEL SPREADER. SEE SWM SHEETS & FOR
<
e_- PROPOSED 3:1 SLOPE DETAILS 06
CONTRACTOR SHALL LOCATE & SURROUND THE WITH PERMANENT (D
- /PROPOSED CONSERVATION AREA'WITH ORANGE GRASS COVERING 0 Z
SAFETY FENCE PRIOR TO STARTING 0
CONSTRUCTION. SAFETY FENCE IN THIS LOCATION
ADDITIONAL 0.78 ACRES OUTSIDE 0 FTHE
PROJECT LIMITS BUT PART OF THE OVERAL L IS INTENDED TO PREVENT DISTURBANCES WITHIN Ln
1VV' n
THE CONSERVATION AREA. 4ATL= IT
EROSION CONTROL PLAN. AREA TO REMAIN 111 110 E_-C. FI Ilk:,,.j
UNDISTURBED, EXCEPT FOR THE INSTALLED
SILT FENCE. THE DISTURBANCE FOR THE SILT
FENCE HAS BEEN INCLUDED IN THE OVERALL Lij
PROJECT LIMITS OF DISTURBANCE AREA to
\' _ f \\ 0
ES LEVEL SPREADER - SEE SHEETS 5 & 6 _ / FOR DETAILS AND DESIGN
GRAPHIC SCALE Ditch Subarea Ground Cover GRAPHIC SCALE JOB NO.
6p
�Il I -SE
Area, a c.
CW
Impervious Areas
0.11
0.9
Gravel Areas
0.56
01 .8
Pervious Grass
0.42
1.3
192178
3-
SCALE
PFI$IP HI_=- L -SOL-
ii[H HAII. 30'
J TV Vr L"IP
SHEET NO.
- -- - -- I inch - 30 ft. Total 1.09 0.62
-:Z�� ------- *Values per the VESCH, Chpt. 5, Table 5-2 1 inch - :30 ft,
4
PRE -DEVELOPMENT SWM PLAN: % WATERSHED SUMMARY
SCALE 1 " = 30' : ♦♦♦ CN Area, 1-year Flow
..• ♦♦ ac. cfs
♦ _ FDA A (Pre-Dev.) 68 1.54 1.12
` ♦♦ Pre -Development Impervious Area Summary
• / �� Subarea A
/ * Existing Bu
i
/ Existing Gr
Existing Ca
♦ / / Subarea B
• / Existing Bu
♦ i
( Existing Ca
Existing Gr
( %
Impervious Areas
I � ��* � Water Quality Im P
. \♦♦ > I (Defined by the Proposed Limits of
. \ . Existing Gravel
■ II ICI ®. \ ♦♦
♦ \
-. FLO o w / A EL-iF/-5'
— ♦♦ I,
♦ , ♦♦♦♦ I� of -FANvEL F°ow
�! ♦♦
- - �♦
■ - • •♦
rj
! « • SUBAREA B •
■ • ,,PJJ023acF •
■ \ - -- - - • CN=91 .
■ \ • TC=0./1/2fhrs •
♦ ♦♦
I #* 4V# AREA (0,20 ac.♦♦♦
" ♦4k% REDIRECTED'f. SUBAREA A IN ♦®
y `�:� ♦ A,,. POST-DEV. STATE
♦ �! -♦♦ • "
EXISTING STORM SEWER -
•
•♦♦ \� ��,�F &CONCENTRATED -
_ OUTFALLS TO REMAIN.
Ilk
0 U'- OLF A il'..A ELE /- 7'
♦ h / (:F (ONC Fl ow .,/ A
♦ ���V\\ ELE , Eo■
♦
♦ `. .-" "" PRE-DEV. •
♦ _"� " / SUBAREA
A •
♦
.54 ac /
Tc=0.16-hrs. - -
♦ ...,� - ■
• \ e
'LocnTloN OF
- - -- ' %• PROPOSED SWM
FACILITY
STORMWATER MANAGEMENT NARRATIVE: 1
OVERVIEW:
THE PROPOSED STORMWATER MANAGEMENT PLAN COMPLIES WITH PART IIB SWM REQUIREMENTS. MINIMUM
CHANNEL & FLOOD PROTECTION AND VIRGINIA RUNOFF REDUCTION METHOD (VRRM) REQUIREMENTS ARE 1 .�•
MET. PLEASE SEE THIS SHEET FOR SUMMARIES, AND THE ATTACHED STORMWATER MANAGEMENT
CALCULATIONS PACKET FOR ADDITIONAL DETAILS, PERTAINING TO THIS PLAN's WATER QUALITY AND : '.�•
QUANTITY COMPLIANCE. -
WATER QUANTITY SUMMARY •411
~••
THE PROPOSED PLAN MEETS MINIMUM COUNTY AND VA DEQ REQUIREMENTS. THE PRE -DEVELOPMENT STATE
CONSISTS OF AN EXISTING DEVELOPMENT. THIS DEVELOPMENT HAS TWO PRIMARY CONCENTRATED
OUTFALL POINTS.
THE FIRST CONCENTRATED OUTFALL POINT IS LOCATED TO THE EAST AND ITS DRAINAGE SYSTEM WILL
REMAIN IN THE POST -DEVELOPMENT STATE. THIS STORM SEWER NETWORK WILL NOT RECEIVE ADDITIONAL
RUNOFF AND ITS CONTRIBUTING DRAINAGE AREA (SUBAREA B) WILL NOT BE MODIFIED WITH THIS PLAN,
THEREFORE AN ANALYSIS OF THIS CONCENTRATED OUTFALL POINT IS NOT REQUIRED.
THE SECOND CONCENTRATED OUTFALL POINT IS LOCATED TO THE SOUTHEAST, AS DEPICTED IN SUBAREA _
'A' IN THE PRE- AND POST -DEVELOPMENT STATES. SUBAREAA' ENCOMPASSES THE PROPOSED - --
IMPROVEMENTS AND A CHANNEL & FLOOD PROTECTION ANALYSIS HAS BEEN PROVIDED FOR THIS AREA. TO
OFFSET THE IMPACTS FROM THE PROPOSED IMPROVEMENTS, A DRY DETENTION CELL IS PROPOSED TO
TREAT SUBAREA'A'. THIS FACILITY IS SPECIFIED AS'SWM FACILITY A' ON THIS PLAN AND PROVIDES
STORMWATER QUANTITY (NOT QUALITY) TREATMENT.
9 VAC 25-870-66 CHANNEL PROTECTION COMPLIANCE IS MET FOR SUBAREAA' VIA SECTION B.3.a (ENERGY - J
BALANCE COMPUTATIONS) AND THE LIMITS OF ANALYSIS IS MET VIA SECTION B.4.,i
9 VAC 25-870-66 FLOOD PROTECTION COMPLIANCE FOR SUBAREAA' IS MET VIA SECTION C.2.b (REDUCED
POST -DEVELOPMENT 10-YEAR FLOW) AND THE LIMITS OF ANALYSIS IS MET VIA SECTION C.3.
WATER QUALITY SUMMARY
THE STORMWATER QUALITY REQUIREMENTS FOR THIS ReDEVELOPMENT ARE MET. THE VRRM SPREADSHEET --
FOR ReDEVELOPMENTS WAS UTILIZED. THE SITE IS CURRENTLY BEING USED AS A WINERY AND IS _
PARTIALLY IMPERVIOUS IN ITS CURRENT STATE,
IN THE POST-ReDEVELOPMENT STATE THE OVERALL IMPERVIOUS AREA IS INCREASED. THIS INCREASE
CAUSES A TOTAL MINIMUM PHOSPHOROUS REMOVAL RATE REQUIREMENT OF 0.99 Ibs/yr FOR THE PROPOSED
PROJECT. THE PROPOSED PLAN WILL SATISFY THIS MINIMUM WATER QUALITY REQUIREMENT BY RELEASING �- L'
SWM FACILITY A's RUNOFF TO CONSERVED A/B SOILS IN A SHEET FLOW CONDITION. THE PHOSPHOROUS
REMOVAL RATE PROVIDED IS 1.00 Ibs/yr AND EXCEEDS THE MINIMUM REQUIREMENT. -
All
16,875 sf
8,300 sf
EXISTING CONCENTRATED
OUTFALLS DRAINING SUBAREA B TO
REMAIN. NO ADDITIONAL RUNOFF
IS PROPOSED TO BE ADDED TO
THIS STORM SEWER NETWORK.
-I
THE BMP TREATMENT AREA (TOTALING
0.86 ac.) IS THE PORTION OF SUBAREA A
THAT IS LOCATED WITHIN THE LIMITS
OF DISTURBANCE. THIS AREA IS BROKEN
DOWN INTO IMPERVIOUS AREAS(0.55
a
OR 64%) AND MANAGED TURF AREAS
(0.31 ac. OR 36%).'
PROPOSED ESC LIMITS OF
DISTURBANCE, TYPICAL. THE
BOUNDARY FOR THE LIMITS OF
DISTURBANCE, WHICH TOTALS 1.37ac.,
DEFINES THE BOUNDARY FOR THE
VRRM WATER QUALITY CALCULATIONS.
POST -DEVELOPMENT SWM PLAN: WATERSHED SUMMARY
SCALE 1 it = 30` . ♦♦ I Area, 1-year Flow, 2-year Flow, 10-year Flow,
• ♦ CN ac. cfs cfs cfs
.�• ♦♦♦ l DAA(Post-Dev.) 78 1.54 0.48 0.55 2.70
♦ ♦ Post -Development Impervious Area Summary
• , ♦ Subarea A
• / *,, \\ Existing Building & Overhangs
• / Existing Gravel
♦ / Existing Concrete
♦ / Proposed Gravel
Proposed Building
/ Subarea B (Not Modified)
Existing Building
Existing Concrete
■ / Existing Gravel
i♦ \•� i Water Quality Impervious Areas
♦♦ i (Defined by the Proposed Limits of Distt
. \ / Existing Gravel
■ I ♦ \ \ ♦ Proposed Gravel
( ♦ \ ♦,, Proposed Building
( ♦♦ \,♦♦� 100' OF OLF w/ A ELEV=10'
45' OF CONC. FLOW w/ A ELEV=5'
♦♦� �♦ 170' OF CHANNEL FLOW ♦
100' OF OLF w/ A ELEV=7' ♦♦. \ ♦♦
350' OF CONC. FLOW w/ A ELEV=24' i
80' OF CHNL FLOW IN DITCH •♦ l
■ _ \ - - _ - \ ♦ THE UPLAND AREA (NOT MODIFIED
' ■ • ♦♦ & NOT PART OF THE CANNEL
FLOOD PROTECTION ANALYSIS) IS
■ \ lI • \ ♦• THIS AREA REPRESENTED
DDPBY BYPASSES THE
B. �
I \ 1 __ _ _ • ♦♦ PROPOSED DEVELOPMENT &ITS
1 ■ �\ - : �• OUTFALLS REMAIN UNALTERED.
��� �� • SUBAREA B • it -
■ A\ (N00_MOD,2 aC11 D -
t
CN=91
41P_ - - • Tic =0.12 hrs. - •
i
I
♦ ♦♦4r#
39,050 sf
8,300 sf
24,100 sf
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���--69r(—= — --- - --- �'�_
r
■ � ROOFTOP I BE-
I i - ■� I ice, FACILUIDIRECTLY-TO SWM
TY 'A', AS SHOWN,
ou
■II ��
` ■ I ` POST DEV
I ■l SUBAREAA"
`,■ 1.54 ac. - sy4 THE BMP TREATMENT AREA (TOTALING
�I^ I CN 78 % / 0.86 ac.) IS THE PORTION OF SUBAREA A
Tc 0.16. hrs.. _ : %� i THAT IS LOCATED WITHIN THE LIMITS
- - j OF DISTURBANCE. THIS AREA IS BROKEN
1
�'� ! DOWN INTO
IMPERVIOUS AREASI(0.�55
I I _ ac. OR 64 /o AND MANAGED TURF AREAS
■■ ♦ (0.31 ac. OR 36%).
1 - - - - - --- _ _ _ $9�- ♦ �PROPOSED ESC LIMITS OFF
__ -- ■ I I`,., -� - _ _ _ ♦ - DISTURBANCE, TYPICAL. THE
BOUNDARY FOR THE LIMITS OF
DISTURBANCE, WHICH TOTALS 1.37ac.,
_ f% DEFINES THE BOUNDARY FOR THE
b84= �`� VRRM WATER QUALITY CALCULATIONS.
��.� � , / j ,r,�� /! � � •. CONTRACTOR SHALL / INSTALL THREE '�� / / / • CLEANOUTS AT THE ND OF THE /EXISTING
,
- -- - — - - - - - - - ! -� ♦� V / '� �. /' soh • " 04" PVC & TWO 06"/ PVC STORM PIPES
v �' / �,/ • /AND EXTEND THE PIPES WITH NEW PVC
.,,.,,♦.` \ �� �� i op ;'� ., ' • �o PIPES" TO SWM FACILITY 'A', AS SHOWN.
♦-696
r
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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 fill
material to be approved by a geotechnical engineer. A
geotechnical engineer is to be present during construction - - - - - --
of dams.
2. Pipe and riser joints are to be watertight within stormwater
management facilities.
3. For temporary sediment traps or basins which are to be Method of 9VAC25-870-66 Method of 9VAC25-870-66
converted to permanent Stormwater management facilities; Subarea
conversion is not to take place until the site is stabilized, Channel Protection Compliance Limits of Analysis for Channel Protection
and permission has been obtained from the County erosion
control inspector. A Section B.3.a (Energy Balance) N/A (Energy Balance Satisified) Sec
SWM FACILITY 'A' SHALL RELEASE ITS
RUNOFF INTO A LEVEL SPREADER. THE
RUNOFF WILLTHEN CREST THE RIGID LIP
AND SHEET FLOW INTO A CONSERVED
AREA WITH A TYPE B SOIL. THE
CONSERVED AREA IS LOCATED ON THE
EAST SIDE OF THE FENCE & SHALL NOT BE
DISTURBED DURING CONSTRUCTION.
i
i
Method of 9VAC25-870-66
Flood Protection Compliance
Method of 9VAC25-870-66
Limits of Analysis for Flood Protection
t;tn 01,
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vCOTT I LLII s�
Lic_ No. 0'.',5791
pJ` ,` 6/3/20 w
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JOB NO.
192178
SCALE
lit =30'
SHEET NO.
5
DETENTION BASIN CONSTRUCTION NOTES:
FACILITY PLANTING SPECIFICATIONS:
1. THE DETENTION 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 BASIN SHALL BE A MAXIMUM OF 3:1 WHEN A SAFETY BENCH IS PROVIDED AT THE TOP, AS SHOWN, OR A MAXIMUM OF 4:1
WITHOUT SAFETY BENCH. THE GENTLE SLOPES WILL REDUCE THE RISK OF EROSION. THE PROPOSED FLOOR SLOPES SHALL BE GRADED TO PROVIDE POSITIVE DRAINAGE AT ALL
TIMES TO THE RISER STRUCTURE.
3. WOODYVEGETATION SHALLNOTBE PLANTED OR ALLOWED TO GROW WITHIN 15 FEETOFTHETOE OFTHE EMBANKMENT NOR WITHIN 25 FEETOFTHE PRINCIPAL SPILLWAY
STRUCTURE.
4. THE SOILS IN THE STORMWATER BUFFER AREA ARE OFTEN SEVERELY COMPACTED DURING THE CONSTRUCTION PROCESS TO ENSURE STABILITY THE DENSITY OF THESE
COMPACTED SOILS CAN BE SO GREAT THAT IT EFFECTIVELY PREVENTS ROOT PENETRATION AND, THEREFORE, MAY LEAD TO PREMATURE MORTALITY OR LOSS OF VIGOR. AS A
RULE OF THUMB, PLANTING HOLES SHOULD BE THREE TIMES DEEPER AND WIDER THAN THE DIAMETER OF THE ROOTBALL FOR BALL -AND -BURLAP STOCK, AND FIVE TIMES DEEPER
AND WIDER FOR CONTAINER -GROWN STOCK.
5. AVOID SPECIES THAT REQUIRE FULL SHADE, OR ARE PRONE TO WIND DAMAGE. EXTRA MULCHING AROUND THE BASE OF TREES AND SHRUBS IS STRONGLY RECOMMENDED AS
MEANS OF CONSERVING MOISTUREAND SUPPRESSING WEEDS.,
CONTRACTOR REQUIREMENTS:
1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR LAYOUT OFALL WORK COVERED UNDER THESE PLANS.
2. LANDSCAPE CONTRACTOR SHALL REFERTO THESTANDARDIZED LANDSCAPE SPECIFICATIONS FORTHESTATE OFVIRGINIA FOR ADDITIONAL INFORMATION. THE CONTRACTOR
SHALL ABIDE BY ITS CONTENTS; HOWEVER ANY NOTES OR SPECIFICATIONS ON THE PLANS SHALL SUPERSEDE THOSE OUTUNED IN THE SPECIFICATIONS MANUAL (COPIES ARE
AVAILABLE FORA FEE FROM THE VIRGINIA CHAPTER OF THE AMERICAN SOCIETYOF LANDSCAPE ARCHITECTS, VIRGINIA NURSERYMEN'S ASSOCIATION, INC. ANDTHE VIRGINIA
SOCIETY OF LANDSCAPE DESIGNERS). ALL DISCREPANCIES SHALL BE BROUGHT TO THE ATTENTION OF COLLINS ENGINEERING PRIOR TO THE CORRESPONDING CONSTRUCTION
ACTIVITY.
3. ALL PLANT MATERIAL SHALL MEET THE MINIMUM SPECIFICATIONS AND STANDARDS DESCRIBED IN THE CURRENT ISSUE OF THE AMERICAN STANDARD FOR NURSERY STOCK,
PUBLISHED BY THE AMERICAN ASSOCIATION OF NURSERYMEN, 1250 STREET, NW, SUITE 500, WASHINGTON, DC 20005.
4. THE CONTRACTOR SHALL VERIFY ALL DIMENSIONS IN THE FIELD AND NOTIFY THE DESIGNER OF ANY VARIANCE FROM THE PLAN.
5. THE LANDSCAPE CONTRACTOR IS RESPONSIBLE FOR VERIFYING THE LOCATION OF ANY ONSITE UTILITIES (CALL MISS UTILITY AT 1-800-552-7001 BEFORE ANY EXCAVATION).
6. REFER TO THE APPROVED FINAL SITE PLANS FOR ANY DETAILED SITE INFORMATION.
7. ALL WORK SHALL BE COORDINATED WITH OTHER PARTIES.
8. PLANTS WILL BE PREPARED FOR SHIPMENT IN A MANNER THAT WILL NOT CAUSE DAMAGE TO THE BARK, BUDS, BRANCHES, STEMS, OR OVERALLSHAPE OF THE STOCK.
CONTAINER GROWN PLANTS WILL BE TRANSPORTED IN THE CONTAINERS IN WHICH THEY HAVE GROWN.
9. ALL PLANT MATERIAL, UNLESS OTHERWISE SPECIFIED, SHALL BE UNIFORMLY BRANCHED AND HAVE A VIGOROUS ROOT SYSTEM. PLANT MATERIAL SHALL BE HEALTHY, VIGOROUS,.
AND FREE FROM DEFECTS, DECAY, DISEASES, INSECT PEST EGGS, AND ALL FORMS OF INFESTATION. ALL PLANT MATERIAL SHALL BE FRESH, FREE FROM TRANSPLANT SHOCK OR
VISIBLE WILT. PLANTS DEEMED UNHEALTHY WILL BE REJECTED.
10. ALL CONTAINER STOCK SHALL HAVE BEEN PROPAGATED IN A CONTAINER LONG ENOUGH FOR THE ROOT SYSTEM TO HAVE DEVELOPED SUFFICIENTLY TO HOLD ITS SOIL.
CONTAINER STOCK WITH POORLY DEVELOPED ROOTSYSTEMS WILL NOT BE ACCEPTED.
11. PLANTS NOT INSTALLED ON THE DAY OF ARRIVAL ON SITE SHALL BE STORED AND PROTECTED BY THE CONTAINER. OUTSIDE STORAGE AREAS WILL BE SHADED AND PROTECTED
FROM THE WIND AND SUN. PLANTS STORED ON SITE SHALL BE PROTECTED FROM ANY DRYING ATALL TIMES BY COVERING THE BALLS OR ROOTS WITH MOIST SAWDUST, WET
BURLAP, WOOD CHIPS, SHREDDED BARK, PEAT MOSS, OR OTHER SIMILAR MULCHING MATERIAL.
12. THE OWNER RESERVES THE RIGHT TO SUBSTITUTE PLANT MATERIAL TYPE, SIZE AND/OR QUANTITY. ANY SUBSTITUTIONS MUST BE APPROVED BY THE INSPECTOR INITIALLY, AND
THEN THE DESIGNER.
13. MINOR FIELD ADJUSTMENTS MAY BE NECESSARY DUE TO SITE CONDITIONS (EX: ROOTBALL AND UTILITY CONFLICT). MAJOR ADJUSTMENTS MUST BE APPROVED BY THE DESIGNER.
14. NO PLANTING SHALL OCCUR WHEN THE SOIL IS FROZEN.
15. PLANT MATERIAL SHALL BE PLACED IN EXISTING SOIL WITH EACH PLANTING PIT EXCAVATED TO A SIZE SUFFICIENT TO CONTAIN THE ENTIRE ROOT BALL OR ROOT MASS, WITHOUT
CRAMPING ROOTSTOCK.
16. THE CONTRACTORSHALL MAINTAIN A ONE 1 CALENDARYEAR 90%CAREAND REPLACEMENT WARRANTY FOR ALLPLANTINGS. THE PERIOD OF CARE AND REPLACEMENT SHALL
BEGIN AFTER INSPECTION AND APPROVAL OF THE COMPLETE INSTALLATION OF ALL PLANTS AND CONTINUE FOR ONE CALENDAR YEAR.
17. THE CONTRACTOR IS RESPONSIBLE FOR REMOVAL AND DISPOSAL OF TRASH AND DEBRIS WITHIN THE LIMITS OF THE PLANTING ON A DAILY BASIS,
18. THE CONTRACTOR WILL NOT BE RESPONSIBLE FOR PLANT MATERIAL THAT HAS BEEN DAMAGED BY VANDALISM, FIRE, OR OTHER ACTIVITIES BEYOND THE CONTRACTOR's
CONTROL.
FACILITY CONSTRUCTION
1. THE DETENTION BASIN MAY SERVE AS A SEDIMENT BASIN AND/OR TRAP 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 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 POND IN MIND, APPROPRIATE PROCEDURES SHALL BE IMPLEMENTED TO PREVENT DISCHARGE OF TURBULENT WATERS WHEN THE BASIN IS BEING
CONVERTED TO AN DETENTION BASIN.
2. THE DETENTION BASIN SHALL ONLY BE CONSTRUCTED AFTER THE CONTRIBUTING DRAINAGE AREA TO THE POND IS COMPLETELY STABILIZED. IF THE PROPOSED POND SITE WILL BE
USED AS A SEDIMENTTRAP 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 BASIN, INCLUDING TEMPORARY DE -WATERING DEVICES AND STORMWATER DIVERSION PRACTICES. ALL AREAS
SURROUNDING THE BASIN THAT ARE GRADED OR DENUDED DURING CONSTRUCTION SHALL BE PLANTED WITH TURF GRASS, NATIVE PLANTINGS, OR OTHER APPROVED METHODS
OF SOIL STABIUZATION.
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 14A BELOW:
Table 14.4, Clay Liner Specrltcarivns
Pro
Test Method
Unit
Specification
Permeability
ASTM 0-2434
Cmisee
1 x 1T
Plasticity Index Of Clay
ASTM D-423A24
%
Nct less than 15
Liquid Limit o1 Clay
ASTM U-2216
%
Not less than 30
GIaY PaRcies Passkig
ASTM D422
%
Nat less than 30
Gay Compactor
ASTM D-2216
%
95%of standard proctordens-
Source: vRglnl3,'170lnwateFManagemelt[HanaD"iN 9yy)
9. UPON COMPLETION OF THE EMBANKMENT GRADING TH E CONTRACTOR SHALL EXCAVATE/GRADE UNTI L THE APPROPRIATE ELEVATION AND DESIRED CONTOU IRS ARE ACHI EVED
PROPOSED xo' WIDE TOP OF'DAM
(ELEV.=684.00 SHALL SERVE AS A
SAFETY BENCH. TOP OF DAM CROSS
SLOPE SHALL NOT EXCEED 2%.-DAM TIC
INCLUDE A 25' WIDE EMERGENCY
-_1 (J SPILLWAY WITH A CREST ELEV.=682.75'.
PROF7S( J I
68F
1 CO Y. PEAK „ -B8 .u6
( r P AI E 60 3,.
.c
,r PtAF - t ;'
6C,O
,r PEA oa: _. 6Pn 79
,7ADE
�.
PROPOSED 024" HOPE STANDPIPE w/
TRASHRACK TO SERVE AS THE RISER
b
STRUCTURE. RISER RIM ELEV.=681.75'. RISER
TO INCLUDE (1) ONE PERMANENT 04"
LOW -FLOW ORIFICE WITH AN INVERT
ELEV.=678.75' (LOCATED AT THE LOW -POINT OF
i
THE DETENTION CELL), ALL ORIFICE OPENINGS
�-
SHALL HAVE STATE APPROVED TRASHRACKS,
TYPICAL. SEE THE DETAILS ON THIS SHEET, OR
6-�,
/
EQUIVALENT, FOR ADDITIONAL INFORMATION.
PROPOSED BASIN'S FLOOR SHALL BE
-
SLOPED TO DRAIN TO THE RISER
(0.50% MIN.). CONTRACTOR SHALL
ENSURE POSITIVE DRAINAGE
THROUGHOUT THE FACILITY.
bLLJ
rn
W W
Io
10' WIDE TOP OF
- Do
UD
Wcc
DAM ELEV.=684', `�
TYP.
PI'J OSD
GRADE
7UFT_`.L_ _
EM6!',NkMEIJT IN AC(r( FL di'E
-ll-1'-�-4F_F_I T_.L2
-38.10 LF OF 08" HOPE @ 0.65%
(II=678.25, Ia=678.00),`L( j
! /-81.50 LF OF 08" HOPE @. 0.50%
i B'-50 8.00, I0=677.59)_1.00 LF OF 08" HOPE @ 9.0%
j (II=677.59 _I0=677.50)
I
r
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w... _ IITL- PCUTCC_TI�I'•! (-; ('
F 77J5 -C �P ^.F RIGID In IP
PROPOSED VDOT STD. CL-
Al RIPRAP LINED
PROTECTION w/ FILTER
FABRIC UNDERLAYMENT
TO PREVENT FLOATATION THE RISER BASE
& BARREL SHALL BE FIRMLY EMBEDDED 6"
INTO AN 18" THICK REINFORCED
CONCRETE FOUNDATION THAT IS 4'x4',
AND BURIED BELOW GROUND.
�0 n
rn
rn Do r r-
CO CD
0+50 1+00 1+50 2+00
SWM FACILITY 'A' & LEVEL SPREADER DETAIL:
SCALE 1 " = 30'
I
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r� I
1
- --
I ?Z
PROPOSED 6' WIDE VDOT STD. CL. Al RIPRAP-
- - - - - LINED OUTLET PROTECTION w/ FILTER FABRIC
rj U NDERLAYMENTTO CHANNEL BOTTOM
l\
6/3/20
-
/.
o
� i - PROPOSED xo' WIDE GRASS
s J ,
n nA L
- - - - 1 LINED GRADED ACCESS
-690
PROPOSED BASIN's FLOOR SHALL BE
f_ SLOPED TO DRAIN TO THE RISER
(0.50% MIN.). CONTRACTOR SHALL
__-
-i82-
-i ENSURE POSITIVE DRAINAGE
/ -
THROUGHOUT THE FACILITY.
�
' �
p. - r-
�- _ -PROPOSED xo' WIDE TOP OF DAM SHALL
- SERVE ASA SAFETY: BENCH. TOP OF DAM
' SO 1 ice. CROSS SLOPE SHALL NOT EXCEED z%.
-'mac...\N
_ -SEETHIS SHEET FOR
e �, -
� SCALED PROFILES OF
PROPOSED 15' LONG LEVEL SPREADER (LS) WITH A 10' - '.\��p ° ^FE - THE SWIM FACILITY, TYP. CD
LONG, 12" DEEP PLUNGE POOL AND A 6" WIDE RIGID`' x :� _; 91i:' S+ "rN
-- �
LIP. LS TO INCLUDE A SLOPED 3' MIN. LONG VDOT \''--__ � ,,. i 1��.-�;."C) �, �,_y 't' -�__ �
STD. CL. AI RIPRAP LINED EMBANKMENT f' % / 1/ -PROPOSED $5 WIDE VDOT CL. fn
DOWNSTREAM FROM THE RIGID LIP EXTENDING TO \ - �i 7 VJ ut
'\ _ f-- ,.,, ,--' y *3i'� 3'- At RIPRAP LINED EMERGENCY p
THE EXISTING FENCE LINE. ALL RIPRAP TO INCLUDE - F-
FILTER FABRIC UNDERLAYMENT & BE A MIN. OF 24" / /. �- SPILLWAY w/ 4:1 SIDE SLOPES z z ¢ w
�� -.,� i' z v & CREST ELEV.=682.75' U a a
DEEP. LS TO INCLUDE A 6"-21" MOUND AT THE END`�,�`"� _ j.. C, >, �. ,� �17+C j �/ %,. a p
OF THE LS .ELEV. 678 FORCING WATER OVER THE C' �� -� y ar f
LEVEL RIGID LIP TO THE EAST. SEE THIS SHEET FOR i�' ... %� %, U CO Lu
TO PREVENT FLOATATION THE RISER BASE &- - _ 0*' /� f ~ w m w � ADDITIONAL LS DETAILS. ', - "_.� �, J,.,6.- PROPOSED 15' WIDE x 50' LONG g w
BARREL SHALL BE FIRMLY EMBEDDED 6" INTO AN CONSERVED OPEN SPACE AREA T0- p Q F
18" THICK REINFORCED CONCRETE FOUNDATION \� `, -_,% ✓ PREVENT FUTURE DEVELOPMENT, OU H
THAT IS 4'x4', AND BURIED BELOW.GROUND. -. _/' ' DISTURBANCE & CLEARING IN N z Q
i� F 77 THIS AREA. ' > '-' a C�Z7
/�F'.fFT ?!LEVEL I w
38.10 LF OF 08" HOPE @ 0.65°l0 /f OUTLET F r:�;TEC�101�. U O
�`-----6r76- II=678.25, IO=678.00) r� V)
PROPOSED 024" HOPE STANDPIPE w/ TRASHRACK TO SERVE AS-- . , t
THE RISER STRUCTURE. RISER RIM ELEV.=681.75'. RISER TO 81.50 LF OF 08" HOPE @ 0.50% ! r/; /'w >
INCLUDE (1) ONE PERMANENT 04" LOW -FLOW ORIFICE WITH
AN INVERT ELEV.=678.75' (LOCATED AT THE LOW -POINT OF (II=678.00, I0=677.59)
2+50 3+00 THE DETENTION BASIN). ALL ORIFICE OPENINGS SHALL HAVE 1.00 LF OF 06" HOPE @ 9-) 0-
(II=677.59, IO=677.50) / _77 )O Era 17-
STATE APPROVED TRASHRACKS, TYPICAL. SEE THE DETAILS ON - I /' i�
THIS SHEET, OR EQUIVALENT, FOR ADDITIONAL INFORMATION.
SWM FACILITY A SECTION
2-',- PROPOSED 25' WIDE VDOT CL.
AI RIPRAP LINED EMERGENCY
�I�C 'Uv,j SPILLWAY w/ 4:1 SIDE SLOPES
&CREST ELEV.=682.75'
67:
PROFILE SCALES
1"=5' (V)
J J
QO
1"=50' (H)
W W
x
It
W
W
GJ -
lei
0+50
SWM FACILITY A SPILLWAY
CONSFRVATION AREA &I FVFI SPRFADFR RF0UIRFMFN7;,
yl
- ♦7ROPOSED VDOT STD. CL. Al RIPRAP LINED A) 4,0%,
_. OUTLET PROTECTION w/ FILTER FABRIC- - _ --
17
UNDERLAYMENTT(L=8' W1=' W2= D=2') 'u •�.,=,a - -
3, 7, - IJ��
PROPOSED 15' LONG LEVEL SPREADER (LS) WITH A 10' LONG, 12' DEEP PLUNGE POOL AND A (r_;
6" WIDE RIGID LIP. LS TO INCLUDE A SLOPED 8' (MIN.) LONG VDOT STD. CL. Al RIPRAP
- LINED EMBANKMENT DOWNSTREAM FROM THE RIGID LIP EXTENDING TO THE EXISTING __`_ T�S� OF Po. L,
KEY LEVEL SPREADER
- - - FENCE LINE. ALL RIPRAP TO INCLUDE FILT',,ER FABRIC UNDERLAYMENT & BE A MIN. OF 24" -
INTO EXISTING GRADE
DEEP, LS TO INCLUDE A 6"-21" MOUND AT Tt,HE END OF THE LS (ELEV. 678) FORCING WATER
RIPRAP PLUNGE POOL
- OVER THE LEVEL RIGID LIP TO THE EAST. SEE THIS SHEET FOR ADDITIONAL LS DETAILS.
RIPRAP APRON
6i
7 -
B' X 6' TREATED
---- -- "
"
TIMBERS OR
_--
GENERAL SWM NOTES:
CONCRETE DP
LENGTH OF LEVEL SPREADER
1. STATE APPROVED TRASH RACKS SHALL BE INSTALLED ON ALL ORIFICE OPENINGS. SEE DETAILS ON THIS SHEET, OR EQUIVALENT,
_
'0-
f
}' LIP TO BE BASED ON DESIGN FLOW
FOR INSTALLATION.
AND ALLOWABLE VELOCITY
z. CONCRETE FOUNDATIONS SHALL BE INSTALLED ON ALL RISER STRUCTURES MEETING MINIMUM VESCH SPECIFICATIONS.
u 3
'T 'MAX
LEVELTOP OF PR��
3• CONTRACTOR SHALL HIRE A THIRD PARTY GEOTECHNICAL ENGINEER TO ENSURE THE EMBANKMENTS ARE STRUCTURALLY
SHALL BE
SOUND. 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 AND THE REMAINING
DISTURBED EMBANKMENT SLOPES SHALL BE STABILIZED WITH EC-2 MATTING. ALL BERM FILL MATERIAL SHALL CONSIST OF ML,
1-3 IN COURSE AGGREGATE
CL, SC OR GC SOILS & BE FREE OF WOOD, ROOTS, ROCKS OR ANY OTHER NON COMPACTING SOIL. COMPACTED FILL SHALL BE
OR OTHER LINING AS
PROCTOR MAXIMUM DRY DENSITY ASTM D698 AND HAVE A MINIMUM OF 95% OF MAXIMUM DRY DENSITY AND 2% OF OPTIMUM
DESIGNED FOR STABILITY
MOISTURE CONTENT. ALL EXISTING AND PROPOSED FILL MATERIAL AND PROPOSED CONSTRUCTION SHALL BE APPROVED BY
PLAN ME'
AN ONSITE GEOTECHNICAL ENGINEER PRESENT DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS, AND
PRESENT DURING THE CORE SAMPLING.
DIMENSION BASED ON DIUDIFRIRe®ollanNcii asAoe
DESIGN DISCHARGE
5%pa.tl OR L65. IF VE(3ErAT�
THE DOWNSTREAM EMBANKMENT SIDE SLOPES OF ALL PERMANENT FACILITIES SHALL HAVE A MAXIMUM x SLOPE
r-.Erin smw on mNsarrro 4. 3. .
oreNSPAce FIRer,o Feertese S. THE PERMANENTSWM FACILITY SHALL BE USED AS A TEMPORARY SEDI M ENT TRAPPING DEVICE DURING CONSTRUCTION. THE
e MIN 1i1nry 29e LEVEL SPREADE R NO I E5:
3' MIN CONSTRUCTION OF THE PERMANENT SWM RISER, BARREL, SPILLWAY &EMBANKMENT SHALL 8E COMPLETED WITH THE
1 FIRST 10' FROM LEVEL SPREADER
FOR THE BOTTOM AND SIDE SLOPES OF THE BASIN.
TD' MIN
LIP MUST BE z%oR LESS.
CONSTRUCTION OF THE TEMPORARY SEDIMENT TRAP. THE RISER & BARREL SHALL REMAIN WATERTIGHT AND SHALL NOT BE
10.
CONTRACTOR SHALL TH EN CONSTRUCT THE EM E RGENCY SPILLWAY I N CUT OR STRUCTU RALLY STABI LIZED 501LS.
MAINTENANCE INSPECTIONS:
9'MIN
4: TIE BACK ENDS OF LEVEL
OPERATIONAL UNTIL THE ESC INSPECTOR APPROVES THE CONVERSION OF THE TEMPORARY TRAP TO A PERMANENT FACILITY.
11.
THE CONTRACTOR SHALL THEN FINISH CONSTRUCTION OF ALL OUTLET STRUCTURES INCLUDING DOWNSTREAM RIP -RAP APRON PROTECTION IF APPLICABLE.
ANNUAL INSPECTIONS SHALL BE CONDUCTED IN THE NON -GROWING SEASON DURING THE FALL AND
r
SPREADER INTO THE SLOPE To
AT THE OF ETR P's CONVERSION HE CONTRACTOR SHALL REMOVE SEDIMENT LADEN MATERIAL AND SHALL ENSURE
A H I H A T 0 L M U
12,
THE CONTRACTOR SHALL NEXT STABILIZE EXPOSED SOILS BY HYDROSEEDING OR SEEDING OVER STRAW.
WINTER MONTHS. INSPECTIONS SHALL TRIGGER MAINTENANCE OPERATIONS, AS REQUIRED.
- - - -
-
- �7
AVOID SCOURING,
THE GRADES AND MINIMUM VOLUME SHOWN ON THIS PLAN ARE ACHIEVED. THE CONTRACTOR SHALL REASONABLE MINIMIZE
SOILCOMPACTION DURINGTHE CONVERSION.
13.
THE CONTRACTOR SHALL THEN INSTALL THE APPROPRIATE BASIN LANDSCAPING IN ACCORDANCE WITH THE APPROVED PLANS, IF APPLICABLE.
MAINTENANCE MAY INCLUDE, BUT IS NOT LIMITED TO, SEDIMENT REMOVAL, SPOT RE -VEGETATION AND
MIN_ DEPTH BASED 0
FACILITY
MAINTENANCE:
REPAIRS TO THE LEVEL SPREADER. THE CONTRACTOR SHALL CONDUCT THE INSPECTIONS FOLLOWING
THE FIRST YEAR THE PROJECT IS COMPLETED, AND THE OWNER SHALL CONDUCT THE INSPECTIONS
REQUIRED STONE 91ZE-�
= m
- _I
HL��I
- III- I
EMBANKMENT NOTES:
AFTER AN INVESTIGATION OF THE SITE's SOILS, ASITE VISIT, AN ANALYSIS OF THE SURVEYED TOPOGRAPHY AND AN EXAMINATION OF VA DEQAPPENDIX A: EARTHEN EMBANKMENT, THE
MAINTENANCE OF THE DETENTION BASIN IS DRIVEN BY ANNUAL INSPECTIONS THAT EVALUATE THE CONDITION AND PERFORMANCE OF THE FACILITIES. DURING THESE INSPECTIONS
THEREAFTER.
III
--
APPLICANT HAS PROVIDED A COMPREHENSIVE EMBANKMENT DESIGN THAT DOES NOT NEED A GEOTECHNICAL STUDYATTHIS TIME. SUCH IS THE CASE DUETO THE PRECAUTIONARY
ALLBE PERFORMED DY THE CONTRACTOR IN THE FIRST YEAR FOLLOWING INSTALLATION, AND THE OWNER THEREAFTER:
.�. ail -
-
EMBANKMENT DESIGN PROPOSED. ASUMMARY OFTHE EMBANKMENT DESIGN REQUIREMENTS ARE LISTED BELOW AND ONTHISSHEET, MANDATING THE CONTRACTOR MEET THESE
;HEIFNOLLOWINSURE
SE SKSSHENT ASIN.INSPECTIONS
INCLUDETHEFOLLOWING AT MINIMUM:
N A -A'
REQUIREMENTS ATA MINIMUM.
2.
MONITOR THE GROWTH OF THE GROUNDCOVER AND ANY TREES AND SHRUBS PLANTED. AS APPLICABLE. RECORDTHE SPECIES AND THEIR APPROXIMATE COVERAGE AND NOTE
x. ENSURE FLOW PATHS ARE NOTSHORT-CIRCUITED IN THE LEVEL SPREADER AND THROUGH THE
THE EMBANKMENTS SHALL HAVE A COMPACTED CLAY CORE WITH A CUTOFF TRENCH & BE IN ACCORDANCE WITH THE DETAILS SHOWN ON IN THIS PLAN. BERMSAND SPILLWAYS SHALL BE
THE PRESENCE OF ANY INVASIVE PLANTSPECIES, AS APPLICABLE.
CONSERVATION AREA.
n--_,,,,-_,--a
Fi ore 2.4: Level S reader: Pi a or Channel Flow to Filter Stri orrConserved
g P P P
S ALL BERM FILL ALSHALL ME, L,SCORGCSOILS&
THENY
IZEDWITH EBE
STABILIZED WOOD,ROOTS,
3.
INSPECT THE CONDITION OF STORMWATER IN ETS TO THE BASIN FOR MATERIAL DAMAGE EROSION OR UNDERCUTTING.
L R
z. ENSURE DEBRIS AND SEDIMENT HAS NOT ACCUMULATED.
RNG&
PROCTOR DENSIT TMDCONSIST HOF
OTHINGONCOMPACTING IL.0 M ACTE AVEA
BE FREE OF WOOD ROOTS, ROCKS OR ANY OTHER NON COMPACTING SOIL COMPACTED FILL SHALL BE PROCTOR MAXIMUM DRY DENSITY ASTM D698 AND HAVEA MINIMUM OF 95%OF
4.
INSPECT THE BANKS OF UPSTREAM AND DOWNSTREAM CHANNELS FOR EVIDENCE OF SLOUGHING, ANIMAL BURROWS, BOGGY AREAS, WOODY GROWTH, OR GULLY EROSION
3 CHECK FOR SCOUR AND EROSION WITHIN THE LEVEL SPREADER SYSTEM AND CONSERVATION AREA.
Often Space
MAXIMUM DRY DENSITY AND 2% OF OPTIMUM MOISTURE CONTENT. ALL FILL MATERIAL AND CONSTRUCTION SHALL BE APPROVED BY AN ONSITE GEOTECHNICAL ENGINEER PRESENT
THAT MAY UNDERMINE EMBANKMENT INTEGRITY.
4. CHECK FOR FOOT OR VEHICULAR TRAFFIC DAMAGE IN THE STONE.
DURING THE CONSTRUCTION OF THE EMBANKMENTS AND FILL AREAS.
INSPECT BASIN OUTFACE CHANNEL FOR EROSION UNDERCUTT NG RIP RAP DISPLACE ENT WOODY GROWTH
ENSURE VEGETATIVE DENSITY MEETS OR EXCEEDS % OF THE CONSERVATION AREA
c. & INSPECT CONDITION OF PRINCIPAL SPILLWAY AND RISER FOR EVIDENCE OF $PALLING, JOINT FAILURE, LEAKAGE, CORROSION OR OTHER FAILURES. 5 90 'SECTION A-SI.: TSLTPICAL GR.YHIC Al DETAIL S
7. INSPECT CONDITION OF ALL TRASH RACKS, REVERSE SLOPED PIPES OR FLASHBOARD RISERS AS APPLICABLE FOR EVIDENCE OF CLOGGING, LEAKAGE, DEBRIS ACCUMULATION OR IN THE EVENT MAINTENANCE IS REQUIRED DURING THE ABOVE NOTED INSPECTIONS, CORRECTIVE
OTHER FAILURES. MEASURES SHALL BE COMPLETED IMMEDIATELY.
8.
INSPECT MAINTENANCE ACCESSTO ENSURE IT IS FREE OF WOODY VEGETATION, AND CHECKTO SEE WHETHER VALVES, MANHOLES AND LOCKS CAN BE OPENED AND OPERATED.
9.
INSPECT INTERNAL AND EXTERNAL SIDE SLOPES OF THE BASIN FOR EVIDENCE OF SPARSE VEGETATIVE COVER, EROSION, OR SLUMPING.
MAINTENANCE OPERATIONS:
10.
OWNER OR CONTRACTOR SHALL MAKE NEEDED REPAIRS IMMEDIATELY.
ASIDE FROM THEABOVE MENTIONED MAINTENANCE OPERATIONS, CONSERVATION AREAS HAVE MINIMAL
MAINTENANCE REQUIREMENT'S. SPRING CLEANUP, PERIODIC: MOWING, REPAIR OF'rHE: LEVEL SPRRADE.R
FACILITY
INSPECTION:
AND F.NSTTRTNG A DFNSE, HEALTHY GRASS GROUNDCOVER ARE. KEY MAINTENANCE OPERATIONS.
MULTIPLE
INSPECTIONS ARE CRITICAL TO ENSURE THE BASIN s ARE PROPERLY CONSTRUCTED. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY THE CONTRACTOR THE
MOWING SHALL BE COMPLETED AT LEAST TWICE A YEAR TO PREVENT FURTHER WOODY GROWTH.
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 DETENTION BASIN's CONSTRUCTION PROCESS:
COUhITY C]F ALBEl�Ii3RLE
1.
PRE -CONSTRUCTION MEETING
l%Cpartniem Dt Commimiry NveIDpinent
it
2.
INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS)3.
EXCAVATION/GRADING (e.g., INTERIM/FINAL ELEVATIONS)
4.
DETENTION BASIN INSTALLATION (e.g., INTERIM AND FINAL ELEVATIONS)
Construction Record Drawings (As -built) for VSMP
S.
INSTALLATION OF THE EMBANKMENT, THE RISER/PRIMARY SPILLWAY, AND THE OUTLET STRUCTURE(s).
6.
PLANTING PHASE (WITH EXPERIENCED LANDSCAPE ARCHITECT PRESENT/DIRECTING IF APPLICABLE)
7.
FINAL INSPECTION (DEVELOP A PUNCH LIST FOR. FACILITY ACCEPTANCE)
LO
The followin is a list of information required on construction record drawings for
� '7
Storm Rax TN
ROUND SERIES TRASH RACK
CONCRETE MANHOLE
STANDARD Btu INCH RACK SHOWN
DIMENSIONS IN INCHES
(OR EQUIVALENT)
PLAN
SIDE VIEW
StorrnRaKTm Routed 5eriesfor Cohtrete Man"
PaRRI�.
D[nA
111M8
DIM
Min
min OD
RS-24
17%
14)
23
24
30
F&A
ilk
id)4
m.i
36
43
Taos
nY
ig
s4.
ms
S7
R54S
27M
is)✓
66%
50
7a
PliI Sa uflant, lne. CnstonlER
PO B�43a6, Nli c tcr, VA 226M
L48 MOChm NW, LWxhesccr. VA IZL03
,8771877.5727Y*om PRO,ECT-
459DI 772.-ul9fax:
rope smaw:*uunv.l, Pavane m
Pvsrieslfurras..Lu
ISOMETRIC
Cowelir E STRUCTURE GIFIIENSIONS
INSIDE STRUCTURE DIMENSION
OUTSIDE STRUCTURE DIMENSION
AVAIL.AeLE OPTIONS
C Ross BRACING FOR OVERHANG
HOPE ANTDVQRTFX PLATE
IatE
DRAM BY,
AMINY:
DETAIL:
storrnwater facilities (reference Water Protection Ordinance 17-422). It is prejterable 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 sea] of the preparing engineer or surveyor.
13. The name and address of the firni and individual preparing the drawings on the title shect.
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:
l . Itisli ,lion Records and photographs for pipe trenches and bedding, including underclrains.
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 :urea maps for the drainage area treated, and for drainage to the facilities.
5. Current ph4sical 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 maybe required
for alterations from the design.
6. Plants, location and lope.
7. Plans and profiles for all culverts, Pipes, Risers, Weirs and Drainage Structures- Display the
installed type of drainage structures, culverdpipe 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-buill 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 referenctes 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- bioflter media, stone layers, sand layers, keyways and cores must be werified as to
material types and depths. include inspection reports, boring or test pit reports and materials
certifications. Biolilter 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. Manufactiumrs certifications for proprietary BMP's certifying proper installation and functioning.
Homogeneous fill
min
�nt off trench -maul ' below stitable1
Sal orFwk L_----------A
TYPICAL HOMOGENEOUS
EMBANKMENT
PerfDrage�d c,
FIICUNDATIIpN DRAIN
fir
11min
�flfld, 9rlese! tK l4Cl
drain cutlet
�Rbd tat
�4r r ikian fillEr
CHNNEY DRAIN
Trorlsiiioe fill
-Rock or gravel
'�Blorket drain
BLANKET DRAIN
���Rvtk or gravel
Srairl
g1e�s d_R.
Tranaitic+n filter
TDE DRAIN
Source: SITS EnoneenngFiaLrd'11an al
figureA-Ia. 1'Tanro'geneorrsEmihankrrtertrs w/Seepage Controls
a
1 /2" zinc plated bank
attached with .9 /8- fantenar
I H" did. holes
1`c3met,rie.
pipeI.4' HOPE p:alc (vyttvaal)
culvert >••"
"TEE ntrWnl:ural PIMAir. ni9
-1 8" hales and 1/-" plat,
{"'y mnnu aclurcd by Plastic
i.J Solutions Inc. or equal
00
' ehaxn wttb opbanal plate
IiliPr sI.^u,.IkIr1I pinsvic nd.h
' A" holes and 1/4- plate
_urac Lured by Plastic
d t20n9 Lnu or equal
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PLASTIC
y} T] ^I SOLU71ON5 R.O. IknK €:RHB
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(OR EQUIVALENT) IVC: a77-877-5727
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192178
SCALE
IS SHOWN
SHEET NO.
6