HomeMy WebLinkAboutWPO202100057 Plan - VSMP 2021-10-12---------------------- --------------------
I.F. = IRON FOUND
I.S. = IRON SET
N.F. = NAIL FOUND ��TMP 78-17A
PP = POWER POLE ,
WM = WATER METER
WV = WATER VALVE �_■
FH = FIRE HYDRANT /
TV = TV PEDESTAL
TP = TELEPHONE PEDESTAL .'
MH = MANHOLE / O
LP = LIGHT POLE
,
,
PROPOSED MAJOR SITE
PLAN AMENDMENT -
/ CAR WASH BUILDING &
FLEET PARKING LOT FOR
' ENTERPRISE RENT -A -CAR
ROSES STORE
TMP 78-17G2
LOR #2 (SDP-1998-118)
ADD LOADING DOCK & RAMP
TO EXISTING
LOR #1 (SDP-1998-118) /
LOADING DOCK, RAMP, &
CANOPY FOR ROSES N.F. \
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PANTOPS SHOPPING CENTER
VSMP PLAN
(WP02021 - 000 )
RIVANNA MAGISTERIAL DISTRICT - ALBEMARLE COUNTY VIRGINIA
- 1. F. O)
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PROJECT AREA = 29,880 SF ♦ '7— * N 27 34'02„ E o
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AND FIXTURES
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AND FIXTURES
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INSTALLATION OF A
MOBILE GENERATOR
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SHEET INDEX
304
312
320
TMP TMP 330
TITLE SHEET
COVER SHEET 1
EXISTING CONDITIONS & DEMOLITION PLAN 2
77-41 78-17A 338
OVERALL GRADING PLAN 3
350
EROSION & SEDIMENT CONTROL PLAN AND DETAILS 4
EROSION & SEDIMENT CONTROL NARRATIVE AND DETAILS 6
368
STORMWATER MANAGEMENT PLAN 6
3762
STORMWATER MANAGEMENT DETAILS 7
380
STORMWATER MANAGEMENT DETAILS 8
384
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78-17B .�` 78-17D6
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SCOTT R. LINS'Z
7a-17Da U Lie. No. 0357911a
140 �p 10/08/21 �Fc,�'�
TOTAL SHEETS 8 3 TMP
6 78-17D
PROJECT
AREA
570
TMP 78-17A TMP
78-17G2
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AN
MINOR AMENDMENT
(SDP-2019-00061)
MODIFICATIONS TO LAZY
PARROT BLDG., PATIO
AND PARKING LOT
NOTES:
CONTRACTOR SHALL VERIFY LOCATION AND
ELEVATION OF ALL
UNDERGROUND UTILITIES SHOWN ON PLANS
IN AREAS OF
CONSTRUCTION PRIOR TO STARTING WORK.
CONTACT ENGINEER
C7 �•
\ \
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.
\ \
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THE CONTRACTOR MUST LOCATE ALL SURFACE AND
SUB -SURFACE UTILITIES PRIOR TO ANY WORK ONSITE.
�`\\
ANY SIDEWALK AND/OR CURB DAMAGE IDENTIFIED IN THE SITE
VICINITY DUE TO PROJECT CONSTRUCTION ACTIVITIES AS
DETERMINED BY THE VDOT INSPECTOR SHALL BE REPAIRED AT
THE CONTRACTOR'S EXPENSE. SIDEWALK WILL BE REPLACED
AT THE DIRECTION OF THE VDOT INSPECTOR. ANY EXISTING
SIDEWALK THAT IS CURRENTLY DAMAGED AND IN NEED OF
REPASHOUILDOBENOT IN ANCE WITH RENT STANDARDS
PARTOF THIS PROJECTAS WELL.
REPLACEDM ASPROJECT
IN ADDITION, ANY EXISTING CG-12S ALONG THE PERIMETER OF
\
THE SITE SHOULD BE UPGRADED TO MEET CURRENT STANDARD
IF NEEDED.
\
ALL SIGNING AND PAVEMENT MARKINGS SHALL BE CONSISTENT
WITH THE MUTCD.
1 inch = 50 ft.
78-17D3
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594
596
598 ,
536 540
400 532
520 `4C<� 201
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GENERAL NOTES
OWNER/DEVELOPER: (TMP 78-17D) PANTOPS SHOPPING CENTER, LLC ENGINEER: COLLINS ENGINEERING
P.O. BOX 5526 200 GARRETT ST, SUITE K
CHARLOTTESVILLE, VA 22905 CHARLOTTESVILLE, VA 22902
(434) 293-3719
(TMP 78-17G2) ROTGIN, CHARLES JR TR;
SECOND AMENDED & RESTATED TRUST
PO BOX 5526
CHARLOTTESVILLE, VA 22905
TAX MAP NO.: 07800-00-00-017D0(DB.2870 PG.643) - 12.07 AC &
07800-00-00-017G2(DB.3880 PG.673) - 5.51 AC
TOTAL PROJECT AREA: 12.07 AC & 5.51 AC (TOTAL SITE AREA: 17.58 AC): PROJECT AREA = 29,880 SF (0.686 AC)
ZONING: PLANNED DEVELOPMENT SHOPPING CENTER WITH FLOOD HAZARD OVERLAY DISTRICT,
ENTRANCE CORRIDOR OVERLAY DISTRICT & PRESERVED & MANAGED SLOPES OVERLAY
DISTRICT (ZMA1983-00002 - APPROVED BY BOS ON JUNE 15, 1983).
SURVEY: SURVEY AND BOUNDARY PROVIDED BY MERIDIAN SURVEYING AND DESIGN IN FEBRUARY,
2021. TOPO VERIFIED BY COLLINS ENGINEERING IN MARCH 2O21.
DATUM: NAD83, NAVD 88
EXISTING TERRAIN: OPEN GRASS FIELD ADJACENT TO SHOPPING CENTER BUILDING.
EXISTING USE: 179,506 SQ. FT. SHOPPING CENTER
PROPOSED: CAR WASH BUILDING FOR ENTERPRISE RENT -A -CAR AND FLEET PARKING LOT FOR ENTERPRISE
RENT -A -CAR RENTAL CARS (31 PARKING SPACE PARKING LOT AREA)
TOTAL AREA OF CARWASH BUILDING = 384 SQ. FT.
COMMERCIAL AREA: TOTAL SQ. FT. OF COMMERCIAL AREA: 179,506 SF + 384 SF = 179,890 SF
WATER SUPPLY PROTECTION AREA: NOT APPLICABLE WITH THIS SITE PLAN AMENDMENT
WATERSHED / WATER RESOURCE AREA: RIVANNA RIVER DRAINAGE BASIN
DENSITY: NOT APPLICABLE WITH THIS SITE PLAN AMENDMENT
GREENWAY DEDICATION: NOT APPLICABLE WITH THIS SITE PLAN AMENDMENT
BUILDING HEIGHTS: 1 STORY BUILDING (CAR WASH) - 16 FEET BUILDING HEIGHT
SETBACKS: FRONT SETBACK: 30' MIN. & 30' MAX. FROM R/W OR EXTERIOR EDGE OF SIDEWALK
SIDE & REAR SETBACK: NONE WHEN ABUTTING LOT IS ZONED COMMERCIAL OR INDUSTRIAL.
BUILDING SEPARATION IN ACCORDANCE WITH THE CURRENT EDITION OF THE BLDG CODE.
SUBDIVISION STREETS: CURB & GUTTER
UTILITIES (WATER AND SEWER): COUNTY PUBLIC WATER AND SANITARY SEWER
AGRICULTURAL/ FORESTAL DISTRICT: NONE
LIGHTING: EXISTING LIGHTING TO REMAIN
LANDSCAPING: SEE STIR PLAN AMENDMENT FOR PROPOSED LANDSCAPING WITHIN PROJECT AREA
TRASH RECEPTACLES: DUMPSTER SHALL BE RELOCATED TO NEW DUMPSTER PAD
PHASING: THIS SITE SHALL BE DEVELOPED IN ONE PHASE.
PARKING: NO CHANGE TO THE OVERALL PARKING - 31 FLEET PARKING SPACES ADDED SPECIFICALLY FOR
THE USE OF ENTERPRISE RENT -A -CAR. THESE SPACES WILL NOT BE AVAILABLE FOR PUBLIC
PARKING.
STREAM BUFFERS/FLOODPLAIN: NOT APPLICABLE WITH THIS SITE PLAN AMENDMENT
RETAINING WALLS: A CONCRETE RETAINING WALL IS PROPOSED. MAXIMUM HEIGHT OF THE RETAINING WALL IS
T TO 4' IN HEIGHT WITH A 36" HIGH GUARD AND 6" RAIL FOR A 42" GUARDRAIL ALONG WALL.
SEE SHEET 6 FOR DETAILS ON THE CONCRETE RETAINING WALL
EXISTING PROPOSED(TOTAL)
LAND AREA: IMPERVIOUS AREAS (WITHIN PROJECT LIMITS): 4,120 SF (13.8%) 19,130 SF (64.0%)
PERVIOUS AREAS (GRASS ISLAND / OPEN SPACES): 25,760 SF (86.2%) 10,750 SF (36.0%)
(TOTAL PROJECT AREA: 29,880 SQ.FT.)
IMPERVIOUS AREAS (WITHIN LIMITS OF DISTURBANCE): EXISTING PROPOSED
BUILDING/SIDEWALK/PATIO: 1,262 SF 3,202 SF
PARKING & CIRCULATION: 2,858 SF 11,808 SF
TOTAL: 4,120 SF 15,010 SF
PAVED PARKING AND CIRCULATION AREA: 14,666 SF
CRITICAL SLOPES: PRESERVED SLOPES ARE WITHIN THE LIMITS OF THE PROJECT AREA, SEE SHEET 2 FOR SLOPE
ANALYSIS.
BURIAL SITES: NO CEMETERIES WERE FOUND DURING FIELD INVESTIGATION OF THE SITE WITHIN THE LIMITS
OF THE PROJECT AREA.
STORMWATER MANAGEMENT: UNDERGROUND DETENTION FACILITY PROPOSED FOR WATER QUANTITY & NUTRIENT
CREDITS WILL BE PURCHASED FOR THE REQUIRED WATER QUALITY.
PARKING CALCULATIONS:
PARKING REQUIRED: 851 SPACES
EXISTING PARKING: 963 SPACES
TOTAL EXCESS PARKING: 112 SPACES
31 PARKING SPACES FOR RENTAL CARS ONLY
PROPOSED WITH THIS APPLICATION. THIS
WILL NOT INCREASE THE OVERALL PARKING
SPACES FOR THE PROJECT.
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EROSION CONTROL * VIRGINIA EROSION& SEDIMENT CONTROL
HANDBOOK SPECIFICATION NUMBER
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PHASE I ESC PLAN: SCALE J."=30'
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N/F CHARLES ROTGIN JR
DB 3880 PG 673
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1992
CONSTRUCTION OF A SILT FENCE
(WITH WIRE SUPPORT)
1. SET POSTS AND EXCAVATE A CXC 2. STAPLE WIRE FENCING TO THE POSTS.
TRENCH UPSLOPE ALONG THE LINE
OF POSTS.
FLOW� 111 �l�i
3. ATTACH THE FILTER FABRIC TO THE WIRE
FENCE AND EXTEND IT INTO THE TRENCH.
FLOW
EXTENSION OF FABRIC AND WIRE INTO THE TRENCH.
FILTER FABRIC
_�9110 I WIRE
1W=�
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4. BACKFILL AND COMPACT THE
EXCAVATED SOIL.
Source: Adapted from Installation of Straw and Fabric Filter
Barriers for Sediment Control, Sherwood and Wyant
3.05 1992
FENCING AND ARMORING
DRIP LINE
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BLOCK W
BUILDING J�
NOTE: SILT FENCE, SAFETY ^ 3s
FENCE, AND TREE PROTECTBW=35O.0 ION / // ////p // / .. 3SS
b S- IF
BE INSTALLED AT LIMITS /
OF DISTURBANCE. THSE ARE
OFFSET FOR GRAPHICAL
PURPOSES.
e h
/ INiOUT=338.0
EXISTING Y/
/ ALBEMARLE
COUNTY / 55�•Q0��
PRESERVED SLOPES w=ss 1.0
/ �,f \ � � / Bw=3sl.D j
,II r CORRECT TRUNK ARMORING
go
TRIANGULAR BOARD FENCE
Plate 3.05-1 Source: Va. DSWC
TMP OiNTYO ALBEMARLE
/\
COIPNTV OF ALBEMARLE
D 2372, PG.580 / /// / 5 F / 0S
��
/ 5
IREo+
(SUPPORT, 1 �
UBJECT //�� /. IPA AWASH RACK o Q IN• CE�NBYTHE
/ / / - CE y2x7 ENTRAN
PROPERTY, TYP. //.d~5. � 1 AFFIC��RANCE•_
ACPT`ICZECOTHISSTCROVNSR
N5C-ToRAu I
N /
EXISTING / ���� ��� / AREAS
1 OA LOODPLAIN F
/
CONTRACTOR STAGING AREA 3/
WITH FUELING TANK, DUMPSTER,- (V PS / ss2 AND PORTA-POTTIES
20' )ATE
// DB792 PG 43ST
CONCRETE WASH
OUT AREA
EXISTING /
BLOCK /
/ DIVERSION DIKE TO SMALL BUILDING
SEDIMENT TRAPPING DEVICE FOR
CONSTRUCTION ENTRANCE
3.38 1992
3.01 1992
• I■
\
r• ••4•.••444••44
r4•ddbddbb4
r ...........
•b4hh44••y.4•I
'd+4!-•a!+b•�!dddr
'...; III►►► A •`
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b••4•.4b•••.4••••�
44•dA•4•ddAAd
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Source: Adapted from Conwed Plastics and
Plate 3.38-2 VDOT Road and Bridge Standards
TMP 078OD-00-00-017G2
N/F CHARLES ROTGIN JR
DB 3880 PG 673
DB 1021 PG 410 (PLAT)
GRAVEL CURB INLET SEDIMENT
FILTER
GRAVEL FILTER 1Y
RUNOFF WATER WIRE MESH
FILTERED WATER
n
4
y c A oPFF
SEDIMENT I u n
CONCRETE GUTTER-712"
CURB INLET
SPECIFIC APPLICATION
THIS METHOD OF INLET PROTECTION IS APPLICABLE AT CURB INLETS
WHERE PONDING IN FRONT OF THE STRUCTURE IS NOT LIKELY TO CAUSE
INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND UNPROTECTED
AREAS.
• GRAVEL SHALL BE VDOT #3, #357 OR 5 COARSE AGGREGATE.
Plate 3.01-1
Source: Va. DSWC
3.07 1992
SILT FENCE DROP INLET
PROTECTION
2 X 4' WEED FRAME
13, MAX FRAME
3' MIN.
GATHER
ESS
ATCORNERS
PERSPECTIVE VIEWS
ELEVATION OF STAKE AND
FABRIC ORIENTATION
DETAIL A
THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE THE
INLET DRAINS A RELATIVELY FLAT AREA (SLOPE NO GREATER
THAN 5%) WHERE THE INLET SHEET OR OVERLAND FLOWS (NO -
EXCEEDING t C.F.S.) ARE TYPICAL. THE METHOD SHALL NOT
APPLY TO INLETS RECEIVING CONCENTRATED FLOWS, SUCH AS
IN STREET OR HIGHWAY MEDIANS.
Source: N.C. Erosion and Sediment Control
Plate 3.07-6 Planning and Design Manual, 1988
a
3.07
SCOTT /R. 001LINS'Z
Lic. No. 0357911n
A 10/08/21
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JOB NO.
112066
SCALE
Plate 3.07-1 ill =30'
SHEET NO.
4
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-
J. SAFETY FENCE:
A PROTECTIVE 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 POTENTIAL
ACCESS BY 774E PUBLIC.
3.02 CONS7RUCTION ENTRANCE.
A STABILIZED PAVED CONSTRUC77ON ENTRANCE Wl774 A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND EGRESS ON A CONSTRUC77ON SI7E TO
REDUCE 774E AMOUNT OF MUD 7RANSPORTED ONTO PAVED PUBLIC ROADS BY MOTOR VEHICLES OR RUNOFF. CONSTRUC77ON ENTRANCES SHALL BE INSTALLED AS
SHOWN ON THE PLANS TO REDUCE 774E AMOUNT SEDIMENT TRANSPORTED ONTO PUBLIC ROADWAYS.
3.05 SILT FENCE,
A TEMPORARY SEDIMENT BARRIER CONSIS77NG OF A SYN774E77C FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO SUPPOR77NG 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 774E VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. 774E SILT FENCE BARRIERS SHALL BE
INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS INDICATED. 774EY SHALL BE INSPECTED
IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH).
3.07 STORM DRAIN INLET PR07EC77ON:
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 STABILIZA7ON OF THE DISTURBED AREA. INLET PR07EC77ON APPLIES WHERE STORM DRAIN INLETS ARE TO BE MADE
OPERATIONAL BEFORE PERMANENT STABILIZATION OF THE CORRESPONDING DISTURBED DRAINAGE AREA.
3.08 CULVERT INLET PROTECTION:
A SEDIMENT FILTER OR AN EXCAVATED IMPOUNDING AREA AROUND A STORM CULVERT. TO PREVENT SEDIMENT FROM ENTERING STORM CULVERTS PRIOR TO
PERMANENT STABILIZATION OF THE DISTURBED AREA. INLET PR07ECI0N APPLIES WHERE STORM CULVERTS ARE EXISTING OR TO BE MADE OPERATIONAL BEFORE
PERMANENT STABILIZATION OF THE CORRESPONDING DRAINAGE 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 UNPR07ECTED DISTURBED AREAS AND SLOPES TO A STABILIZED OU71ET 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 PR07ECT 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.
3.12 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.
3.19 RIPRAP:
A PERMANENT EROSION -RESISTANT GROUND COVER OF LARGE LOOSE ANGULAR STONE WITH FILTER FABRIC OR GRANULAR UNDERLINING. TO PR07ECT 774E 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.
3.20 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 PONDING OF 7HE 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 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
CONS7RUCI01V UNTIL PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED.
3.32 PERMANENT STABILIZATION:
THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANTING 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 CONSTRUCTION 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 PR07EC77NG THE SOIL SURFACE FROM
RAINDROP IMPACT AND REDUCING THE VELOCITY OF OVERLAND FLOW. TO FOSTER 7HE 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 7HE 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 WI7H TEMPORARY SEEDING.
337 TREES SHRUBS VINES & GROUND COVERS.•
STABILIZING DISTURBED AREAS BY ESTABLISHING VEGETATIVE COVER WITH TREES, SHRUBS, VINES, OR GROUND COVERS. TO AID IN STABILIZING SOIL IN AREAS
WHERE VEGETATION OVER THAN TURF IS PREFERRED, TO PROVIDE FOOD AND SHELTER FOR WILDLIFE 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.
336 BLANKET MATTING
INSTALLATION OF A PROTECTIVE COVERING OR A SOIL STAB/LIZA77ON MAT ON A PREPARED PLANING AREA OF A STEEP SLOPE OR CHANNEL TO AID /N THE
CONTROLLING EROSION ON CRITICAL AREAS.
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 BEAUIFICARON, DUST AND
POLLUTION CONTROL, NOISE REDUCTION, SHADE AND OTHER ENVIRONMENTAL BENEFITS WHILE THE LAND IS BEING CONVERTED FROM FOREST TO URBAN -TYPE USES.
APPLIES IN TREE -INHABITED AREAS SUBJECT TO LAND DISTURBING ACTIVITIES.
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
CONS7RUCI0N. MEASURES EMPLOYED SHALL BE IN ACCORDANCE H97H THE VESCH.
1992
3.32
TABLE 332-D
SITE SPECIFIC SEEDING MIXTURES FOR PIEDMONT AREA
Total Lbs.
Per Acre
Minimum Care Lawn
- Commercial or Residential
175-200 lbs.
- Kentucky 31 or Turf -Type Tall Fescue
95-100%
- Improved Perennial Ryegrass
0-5%
- Kentucky Bluegrass
0-5%D
Hieh-Maintenance Lawn
200-250lbs.
- Kentucky 31 or Turf -Type Tall Fescue
100%
General Slope (3:1 or less)
- Kentucky 31 Fescue
128 lbs.
- Red Top Grass
2 lbs.
- Seasonal Nurse Crop*
20 lbs,
150 lbs.
LAw-Maintenance SIQpe (, teener than 3:11
- Kentucky 31 Fescue
108 lbs.
- Red Top Grass
2 lbs.
. Seasonal Nurse Crop*
20 lbs.
- Crownvetch "
20 lbs.
150 lbs.
` Use seasonal nurse crop in accordance with seeding dates as stated below:
February 16th through April ...................... Annual Rye
May 1st through August 15th ..................... Foxtail Millet
August 16th through October ...................... Annual Rye
November through February 15th ................... Winter Rye '
Substitute Sericea lespedeza for Crownvetch east of Farmville, Va. (May
through September use hulled Sericea, all other periods, use unhulled Sericea).
If Flatpea is used in lieu of Crownvetch, increase rate to 30 lbs./acre. All legume
seed must be properly inoculated. Weeping Lovegrass may be added to any slope
or low -maintenance mix during warmer seeding periods; add 10-20 lbs./acre in
mixes.
TABLE 3314
LIMING REQUIREMENTS
FOR TEMPORARY SITES
Recommended Application
pH Test of Auricultural Limestone
below 4.2 3 tom per arre
42 to 5.2 2 tons per acre
52 to 6 1 ton per acre
TABLE "I.B
ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS
'QUICK REFERENCE FOR ALL REGIONS'
Rate
Planunu Dam= c,, do fibs /acre)
Sept 1 - Feb. 15 5D/50 Mu M
Mnual Ryegass
(Inlium mu16-0nrum)
& 50-`OD
Cenral (w rrWr) Rye
I5 k
Feb. 16-Apr. 30 Mnual Ryegan 60-]0D
(uhum mull =D,m m)
May 1- Aug 31 or.. Millet A
(act"iMllaa)
GENERAL SLOPE (3�I OR LESS) TOTAL LBS PER ACRE
KENTUCKY 31 FESCUE 128 LBS
RED TOP GRASS 2 LBS
SEASONAL NURSE CROP 20 LBS
150 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 W1 VESCH STD 3.35.
PERMANENT SEEDING SCHEDULE PS
NO SCALE
(STD. & SPEC. 3.32 OF VIRGINIA EROSION &
SEDIMENT CONTROL HANDBOOK, 3RD ED.)
TEMPORARY SEEDING:
ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR EXTENDED PERIODS OF TIME SHALL BE SEEDED WITH FAST GERMINATING TEMPORARY VEGETATION 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 3o DAYS.
PLANTS SHOULD BE SELECTED APPROPRIATE TO THE SEASON AND SITE CONDITIONS FROM TABLES 3.31B AND 3.3iC. NOTE THAT TABLE 3.3iB PRESENTS PLANTS WHICH CAN BE USED WITHOUT EXTENSIVE
EVALUATION OF SITE CONDITIONS; TABLE 3.31C 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 IS ESSENTIAL.
AN EVALUATION SHOULD BE CONDUCTED TO DETERMINE IF LIME IS NECESSARY FOR TEMPORARY SEEDING. TABLE 3.3TA MAY BE USED TO DETERMINE THE ACTUAL NEED ALONG WITH SUGGESTED
APPLICATION RATES:
FERTILIZER SHALL BE APPLIED AS Soo LBS/ACRE OF 20-20-10 (14 LBSIi,000 SO. FT.) OR EQUIVALENT NUTRIENTS. LIME AND FERTILIZER SHALL BE INCORPORATED INTO THE TOP 2 TO y INCHES OF THE SOIL IF
POSSIBLE.
IF THE AREA HAS BEEN RECENTLY LOOSENED OR DISTURBED, NO FURTHER ROUGHENING IS REQUIRED. WHEN THE AREA IS COMPACTED, CRUSTED, OR HARDENED, THE SOIL SHALL BE LOOSENED BY DISCING,
RAKING, HARROWING, OR OTHER ACCEPTABLE MEANS. TRACKING WITH BULLDOZER CLEATS IS 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 WITH A BROADCAST SEEDER, DRILL, CULTIPACKER SEEDER OR HYDROSEEDER. SMALL GRAINS SHALL BE PLANTED NO MORE THAN iz INCHES DEEP. SMALL SEEDS, SUCH AS
KENTUCKY BLUEGRASS, SHOULD BE PLANTED NO MORE THAN 1 INCH DEEP. OTHER GRASSES AND LEGUMES SHOULD BE PLANTED FROM 1 INCH TO i DEEP.
SEEDINGS MADE IN FALL FOR WINTER COVER AND DURING HOT AND DRY SUMMER MONTHS SHALL BE MULCHED ACCORDING TO MULCHING, STD. & SPEC.3 35, 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 IDENTIFIED.
EROSION CONTROL NOTES
ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL EROSION
AND SEDIMENT CONTROL PRACTCES 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.
ES-2: THE PLAN APPROVING AUTHORITY MUST BE N077FIED 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 IN CLEARING.
ES-4:A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL PLAN SHALL BE
MAINTAINED ON THE S1TE AT ALL TIMES.
ES-5. PRIOR TO COMMENCING LAND DISTURBING ACT7077ES IN AREAS OTHER THAN
INDICATED ON THESE PLANS (INCLUDING BUT NOT LIMITED TO, OFF -SITE
BORROW OR WASTE AREAS), THE CONTRACTOR SHALL SUBMIT A
SUPPLEMENTARY EROSION CONTROL PLAN TO THE OWNER FOR REVIEW AND
APPROVAL BY THE PLAN APPROVING AUTHORITY.
ES-6: THE CONTRACTOR IS RESPONSIBLE FOR INSTALLA77ON OF ANY ADDIT70NAL
EROSION CONTROL MEASURES NECESSARY TO PREVENT EROSION AND
SEDIMENTATION AS DETERMINED BY 7HE PLAN APPROVING AUTHORITY.
ES-7.•ALL DISTURBED AREAS ARE TO DRAIN TO APPROVED SEDIMENT CONTROL
MEASURES AT ALL TIMES DURING LAND DISTURBING AC77WTIES AND DURING
SITE DEVELOPMENT UNTIL FINAL STABILIZAT70N IS ACHIEVED.
ES-B:DURING DEWATERING 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 be notified one week prior to the pre -construction
conference, one week prior to the commencement of land disturbing activity, and one week
prior to the final inspection.
2. All erosion and sediment control measures will be constructed and maintained according to
minimum standards and specifications of the Virginia Erosion and Sediment Control
Handbook and Virginia Regulations VR 625-02-00 Erosion and Sediment Control
Regulations.
3. All erosion and sediment control measures are to be placed prior to or as the first step in
clearing.
4. A copy of the approved erosion and sediment control plan shall be maintained on the site at
all times.
5. Prior to commencing land disturbing activities in areas other than indicated on these plans
(including, but not limited to, off -site borrow or waste areas), the contractor shall submit a
supplementary erosion control plan to the owner for review and approval by the plan
approving authority.
6. The contractor is responsible for installation of any additional erosion control measures
necessary to prevent erosion and sedimentation as determined by the plan approving
authority.
7. All disturbed areas are to drain to approved sediment control measures at all times during
land disturbing activities and during site development until final stabilization is achieved.
8. During dewatering operations, water will be pumped into an approved filtering device.
9. The contractor shall inspect all erosion control measures periodically and after each runoff -
producing rainfall event. Any necessary repairs or cleanup to maintain the effectiveness of
the erosion control devices shall be made immediately.
10. All fill material to be taken from an approved, designated borrow area.
11. All waste materials shall be taken to an approved waste area. Earth fill shall be inert
materials only, free of roots, stumps, wood, rubbish, and other debris.
12. Borrow or waste areas are to be reclaimed within 7 days of completion per Zoning
Ordinance section 5.1.28.
13. All inert materials shall be transported in compliance with section 13-301 of the Code of
Albemarle.
14. Borrow, fill or waste activity involving industrial -type power equipment shall be limited to
the hours of 7:00am to 9:00pm.
15. Borrow, fill or waste activity shall be conducted in a safe manner than maintains lateral
support, or order to minimize any hazard to persons, physical damage to adjacent land and
improvements, and damage to any public street because o slides, sinking, or collapse.
16. The developer shall reserve the right to install, maintain, remove or convert to permanent
stormwater management facilities where applicable all erosion control measures required
by this plan regardless of the sale of any lot, unit, building or other portion of the property.
17. Temporary stabilization shall be temporary seeding and mulching. Seeding is to be at 75
lbs/acre, and in the months of September to February to consist a 50150 mix of Annual
Ryegrass and Cereal Winter Rye, or in March and April to consist of Annual Rye, cr May
through August to consist of German Millet. Straw mulch is to be applied at 80lbs/1008f.
Alternatives are subject to approved by the County erosion control inspector.
18. Permanent stabilization shall be lime and fertilizer, permanent seeding, and mulch.
Agricultural grade limestone shall be applied at 90lbs/1000sf, incorporated into the Lop 4-6
inches of soil. Fertilizer shall be applied at 1000lbs/acre and consist of a 10-20-10 nutrient
mix. Permanent seeding shall be applied at 180lbs/acre and consist of 95%G Kentucky 31 or
Tall Fescue and 0-5%Q Perennial Ryegrass or Kentucky Bluegrass. Straw mulch is to be
applied at 80lbs/100sf. 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 clogging to structural measures is to be repair immediately. Silt traps are to be cleaned
when 50% of the wet storage volume is filled with sediment. All seeded areas are to be
reseeded when necessary to achieve a good stand of grass. Silt fence and diversion dykes
which are collecting sediment to half their height must be cleaned and repaired
immediately.
20. All temporary erosion and sediment control measures are to be removed within 30 days of
final site stabilization, when measures are no longer needed, subject to approval by the
County erosion control inspector.
21. This plan shall be void if the owner does not obtain a permit within 1 year of the date of
approval. (Water Protection Ordinance section 17-204G.)
22. Permanent vegetation shall be installed on all denuded areas within nine (9) months after
the date the land disturbing activity commenced. (Water Protection Ordinance section 17-
207B)
PERMANENT STABILIZATION.
PERMANENT SEEDING WILL BE APPLIED TO ALL DISTURBED AREAS AS PER THE PERMANENT STABILIZATION OF THIS EROSION &
SEDIMENT CONTROL NARRATIVE.
AFTER CONSTRUCTION IS COMPLETED, ALL DISTURBED AREAS OF THE SITE WILL BE LIMED,
FERTILIZED, AND SEEDED AS PER CURRENT VDOT STANDARDS. THIS SHALL CONSIST OF
THE FOLLOWING:
TOP SOIL - 2" DEPTH
LIME - 2 TONS/ACRE
FERTILIZER - 600 LBS/ACRE OF 15-30-15
SEED - ERNST 5311 CONSERVATION SEED MIX - ERNMX-114 (45 LBS/ACRE PENNLAWN
CREEPING RED FESCUE, 37.5 LBS/ACRE ARGILS KENTUCKY BLUEGRASS, 37.5 LBS/ACRE
PARK KENTUCKY BLUEGRASS, 15 LBS/ACRE 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 WILL BE CLEANED AND MAINTAINED IN
ACCORDANCE WITH THE VIRGINIA 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 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 FERTILIZED AND RESEEDED AS NEEDED.
DESCRIPTION OF EROSION &c SEDIMENT
EROSION CONTROL NOTES & NARRATIVE
CONTROL MEASURES:
THEPOSEPURPOSE OF THIS LAND DISTURBING ACTIVITY IS TO GRADE THE SITE TO FOR A CAR WASH AND ASSOCIATED PARKING
EROSION AND SEDIMENT CONTROL MEASURES:
LOT. THE TOTAL AREA TO BE DISTURBED WITH THIS PLAN IS 0.59 ACRES.
IT IS ANTICIPATED TO USE CONSTRUCTION ENTRANCES, DIVERSION DIKES, EXISTING SEDIMENT BASINS, AND SILT FENCES
EXISTING SITE CONDITIONS:
WILL BE INSTALLED TO CONTROL SURFACE DRAINAGE. TEMPORARY SEEDING HALL BE USED IMMEDIATELY FOLLOWING ALL
THIS SITE IS MAINLY A GRASSED AREA WITH WOODS AND SLOPES TO THE NORTHWEST. THE SITE IS LOCATED TO THE WEST
LAND DISTURBANCE ACTIVITIES. TEMPORARY STOCKPILE AREAS HALL BE MAINTAINED FROM TOPSOIL THAT WILL BE
OF PANTOPS SHOPPING CENTER PARKING LOT BY ENTERPRISE RENT -A -CAR. A PORTION OF THE SITE JUST NORTH OF
STRIPPED FROM AREAS TO BE GRADED AND STORED FOR LATER SPREADING. STOCKPILE LOCATIONS SHALL BE ON SITE
ENTERPRISE RENT -A -CAR IS CURRENTLY PAVED. THE MAJORITY OF THE SITE DRAINS DIRECTLY NORTHWEST TOWARDS THE
AND SHALL BE STABILIZED WITH A TEMPORARY VEGETATIVE COVER. PERMANENT SEEDING WILL BE PERFORMED FOR ALL
RIVANNA RIVER.
ADJACENT AREAS:
AREAS WHICH WILL NO LONGER BE EXCAVATED AND WHERE CONSTRUCTION ACTIVITIES HAVE CEASED. PERMANENT
THIS SITE IS BORDERED TO THE NORTHWEST BY VACANT LAND ALONG THE RIVANNA RIVER, TO THE SOUTH BY EXISTING
SEEDING SHALL ALSO BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR A YEAR OR MORE.
COMMERCIAL BUILDING, TO THE EAST BY PANTOPS SHOPPING CENTER PARKING LOT, AND TO THE NORTH BY ETERPRISE
SELECTION OF SEED MIXTURE HALL DEPEND ON THE TIME OF YEAR APPLIED.
RENT -A -CAR.
TEMPORARY SEEDING WILL BE PERFORMED FOR ALL DENUDED AREAS WHICH WILL BE LEFT DORMANT FOR MORE THAN
OFFSITE LAND DISTURBANCE:
SEVEN DAYS. THESE AREAS SHALL BE SEEDED WITH FAST GERMINATING VEGETATION IMMEDIATELY FOLLOWING GRADING
NO OFFSITE LAND DISTURBANCE IS PROPOSED WITH THIS PLAN.
OF THOSE AREAS. SELECTION OF SEED MIXTURE WILL DEPEND ON THE TIME OF YEAR APPLIED.
CRITICAL AREAS:
CONSTRUCTION ENTRANCE:
TREE PROTECTION FENCING AND SILT FENCE SHALL BE MAINTAINED ALONG THE NORTHWEST PROPERTY LINES AS SHOWN ON
A STABILIZED PAVED CONSTRUCTION ENTRANCE WITH A WASH RACK LOCATED AT POINTS OF VEHICULAR INGRESS AND
THE PLAN TO PROTECT THE ADJACENT PROPERTIES. CONTRACTOR SHALL ENSURE THAT ALL SEDIMENT MAINTENANCE
EGRESS ON A CONSTRUCTION SITE. TO REDUCE THE AMOUNT OF MUD TRANSPORTED ONTO PAVED PUBLIC ROADS BY
CONTROLS ARE ALONG THE PARKING LOT ENTRANCE TO ENSURE THAT NO SEDIMENT LEAVES THE SITE AND DRAINS ONTO THE
ROADS.
MOTOR VEHICLES OR RUNOFF.
SOILS:
CONSTRUCTION ENTRANCES SHALL BE INSTALLED AS SHOWN ON THE PLANS TO REDUCE THE AMOUNT SEDIMENT
SOILS MAP IS INCORPORATED INTO EROSION CONTROL PLAN PHASE I WITH SOILS DATA INCLUDED WITH THIS NARRATIVE.
TRANSPORTED ONTO PUBLIC ROADWAYS.
SEQUENCE OF CONSTRUCTION:
SILT FENCE:
PHASE I:
A TEMPORARY SEDIMENT BARRIER CONSISTING OF A SYNTHETIC FILTER FABRIC STRETCHED ACROSS AND ATTACHED TO
1. NOTIFY ALBEMARLE COUNTY TO SCHEDULE A PRE -CONSTRUCTION MEETING AS REQUIRED.
SUPPORTING POSTS AND ENTRENCHED. TO INTERCEPT AND DETAIN SMALL AMOUNTS OF SEDIMENT FROM DISTURBED
2. PRIOR TO DISTURBANCES, THE LIMITS OF DISTURBANCE SHALL BE FLAGGED AND THE TREE PROTECTION FENCING SHALL BE
AREAS DURING CONSTRUCTION OPERATIONS IN ORDER TO PREVENT SEDIMENT FROM LEAVING THE SITE. TO DECREASE
INSTALLED.
THE VELOCITY OF SHEET FLOWS AND LOW -TO -MODERATE LEVEL CHANNEL FLOWS. THE SILT FENCE BARRIERS SHALL BE
3. NO EROSION CONTROL MEASURES MAY BE REMOVED DURING THE CONSTRUCTION PROCESS WITHOUT THE APPROVAL FROM
INSTALLED DOWN SLOPE OF AREAS WITH MINIMAL GRADES TO FILTER SEDIMENT LADEN RUNOFF FROM SHEET FLOW AS
THE INSPECTOR ON THE PROJECT.
4. THE PROPOSED CONSTRUCTION ENTRANCE WITH WASH AREAS SHALL BE INSTALLED AS SHOWN ON THE PLANS. THE
INDICATED. THEY SHALL BE INSPECTED IMMEDIATELY AFTER EACH RAINFALL AND MAINTAINED IN ACCORDANCE WITH THE
CONSTRUCTION ENTRANCE TO BE INSTALLED WHERE CONSTRUCTION VEHICLE ROUTES INTERSECT PAVED PUBLIC ROADS
VIRGINIA EROSION & SEDIMENT CONTROL HANDBOOK (VESCH).
PROVISIONS SHALL BE MADE TO MINIMIZE THE TRANSPORT OF SEDIMENT BY (VEHICULAR) TRACKING ONTO THE PAVED
PERMANENT STABILIZATION:
SURFACE. WHERE SEDIMENT IS TRANSPORTED ONTO A PUBLIC ROAD SURFACE, THE ROAD SHALL BE CLEANED
THE ESTABLISHMENT OF PERENNIAL VEGETATIVE COVER ON DISTURBED AREAS BY PLANTING SEED. TO REDUCE EROSION
THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED FROM THE ROADS BY SHOVELING OR SWEEPING
AND DECREASE SEDIMENT YIELD FROM DISTURBED AREAS. TO PERMANENTLY STABILIZE DISTURBED AREAS IN A MANNER
AND TRANSPORTING TO A SEDIMENT CONTROL DISPOSAL AREA. STREET WASHING SHALL BE ALLOWED ONLY AFTER
THAT IS ECONOMICAL, ADAPTABLE TO SITE CONDITIONS, AND ALLOWS SELECTION OF THE MOST APPROPRIATE PLANT
SEDIMENT IS REMOVED IN THIS MANNER.
MATERIALS. TO IMPROVE WILDLIFE HABITAT. TO ENHANCE NATURAL BEAUTY. UPON COMPLETION OF CONSTRUCTION
5. INSTALL THE INITIAL CONSTRUCTION MEASURES AS SHOWN ON THE PHASE I EROSION CONTROL SHEET. THIS INCLUDES
ACTIVITIES, ALL AREAS WILL RECEIVE A PERMANENT VEGETATIVE COVER.
WIRE SILT FENCE AND INLET PROTECTION. MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST
TEMPORARY SEEDING:
STEP WITH ANY LAND DISTURBANCE ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE
THE ESTABLISHMENT OF A TEMPORARY VEGETATIVE COVER ON DISTURBED AREAS BY SEEDING WITH APPROPRIATE
TAKES PLACE.
6. ONCE ALL THE PHASE I EROSION CONTROL ITEMS HAVE BEEN INSTALLED AS SHOWN ON THE EROSION CONTROL PHASE I
RAPIDLY GROWING ANNUAL PLANTS. TO REDUCE EROSION AND SEDIMENTATION BY STABILIZING DISTURBED AREAS THAT
PLAN AND THE INSPECTOR HAS APPROVED THE EROSION CONTROL MEASURES, THE CONTRACTOR CAN BEGIN THE MINIMUM
WILL NOT BE BROUGHT TO FINAL GRADE FOR A PERIOD OF MORE THAN 30 DAYS. TO REDUCE DAMAGE FROM SEDIMENT
GRADING OPERATIONS AND BUILDING THE RETAINING WALL. STABILIZATION MEASURES SHALL BE APPLIED TO EARTHEN
AND RUNOFF TO DOWNSTREAM OR OFF -SITE AREAS, AND TO PROVIDE PROTECTION TO BARE SOILS EXPOSED DURING
STRUCTURES SUCH AS DAMS, DIKES, AND DIVERSIONS IMMEDIATELY AFTER INSTALLATION.
CONSTRUCTION UNTIL PERMANENT VEGETATION OR OTHER EROSION CONTROL MEASURES CAN BE ESTABLISHED.
7. ONCE ROUGH GRADING IS COMPLETE, CONTRACTOR CAN BEGIN INSTALLING UTILITIES, ROAD/SIDEWALK CONSTRUCTION, AND
DUST CONTROL:
BUILDING THE CAR WASH BUILDING. INLET PROTECTION SHALL BE APPLIED TO INLETS AS THEY ARE BUILT AS SHOWN ON
REDUCING SURFACE AND AIR MOVEMENT OF DUST DURING LAND DISTURBING, DEMOLITION AND CONSTRUCTION ACTIVITIES.
THE PLAN.
TO PREVENT SURFACE AND AIR MOVEMENT OF DUST FROM EXPOSED SOIL SURFACES AND REDUCE THE PRESENCE OF
8. PERMANENT OR TEMPORARY SOIL STABILIZATION SHALL BE APPLIED TO DENUDED AREAS WITHIN SEVEN DAYS AFTER FINAL
AIRBORNE SUBSTANCES WHICH MAY PRESENT HEALTH HAZARDS, TRAFFIC SAFETY PROBLEMS OR HARM ANIMAL OR PLANT
GRADE IS REACHED ON ANY PORTION OF THE SITE. TEMPORARY SOIL STABILIZATION SHALL BE APPLIED WITHIN SEVEN
LIFE.
DAYS TO DENUDED AREAS THAT MAY NOT BE AT FINAL GRADE BUT WILL REMAIN DORMANT (UNDISTURBED) FOR LONGER
DUST CONTROL MEASURES SHALL BE EMPLOYED TO PREVENT SURFACE AND AIR MOVEMENT OF DUST DURING
THAN 30 DAYS. PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR MORE
CONSTRUCTION. MEASURES EMPLOYED SHALL BE IN ACCORDANCE WITH THE VESCH.
THAN ONE YEAR.
TEMPORARY DIVERSION DIKE:
PHASE II:
A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP OR BASE OF A SLOPING DISTURBED AREA WHICH DIVERTS
9. ONCE THE SITE IS STABILIZED AND THE INSPECTOR HAS GIVEN APPROVAL THE CONTRACTOR CAN BEGIN REMOVAL OF
OFF -SITE RUNOFF AWAY FROM UNPROTECTED SLOPES AND TO A STABILIZED OUTLET, OR TO DIVERT SEDIMENT -LADEN
SEDIMENT TRAPPING MEASURE. NO ITEM SHALL BE REMOVED UNLESS THE UPSTREAM AREAS ARE STABILIZED AND THE
RUNOFF TO A SEDIMENT TRAPPING STRUCTURE. MAXIMUM EFFECTIVE LIVE IS 18 MONTHS.
INSPECTOR GIVES PERMISSION.
ROCK CHECK DAMS:
10. MAINTAIN ALL EROSION CONTROL MEASURES AS SPECIFIED IN THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK,
SMALL, TEMPORARY STONE DAMS CONSTRUCTED ACROSS A DRAINAGE DITCH TO REDUCE THE VELOCITY OF
REMOVING ONLY WHEN APPROVED BY THE LOCAL PROGRAM ADMINISTRATOR IN ACCORDANCE WITH THE VIRGINIA EROSION
CONCENTRATED FLOWS, REDUCING EROSION OF THE SWALE OR DITCH. LIMITED TO USE IN SMALL OPEN CHANNELS WHICH
AND SEDIMENT CONTROL HANDBOOK.
DRAIN 10 ACRES OR LESS; SHOULD NOT BE USED IN LIVE STREAMS.
11.ALL TEMPORARY EROSION AND SEDIMENT CONTROL MEASURES SHALL BE REMOVED WITHIN 30 DAYS AFTER FINAL SITE
STORM DRAIN INLET PROTECTION:
STABILIZATION OR AFTER THE TEMPORARY MEASURES ARE NO LONGER NEEDED, UNLESS OTHERWISE AUTHORIZED BY THE
THE INSTALLATION OF VARIOUS KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS OR CURB INLET
LOCAL PROGRAM ADMINISTRATOR. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION
STRUCTURES PRIOR TO PERMANENT STABILIZATION OF THE DISTURBED AREA; LIMITED TO DRAINAGE AREAS NOT
OF TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION.
EXCEEDING ONE ACRE, AND NOT INTENDED TO CONTROL LARGE, CONCENTRATED STORMWATER FLOWS.
TEMPORARY SEDIMENT TRAP:
SOIL DESCRIPTION
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
7iC- RABUM CLAY LOAM-7% TO 15% SLOPES. THESE DEEP, WELL DRAINED SOILS ARE FOUND ONINTERFLUVES. MODERATE RUNOFF, WITH
MOST TO THE SUSPENDED SOLIDS TO SETTLE OUT. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS.
MODERATELY HIGH TO HIGH PERMEABILITY.
TEMPORARY SEDIMENT BASIN:
A TEMPORARY BARRIER OR DAM WITH CONTROLLED STORMWATER RELEASE STRUCTURES WHICH IS FORMED BY
88- UDORTHENTS,LOAMY-2%TO25%SLOPES. THESE DEEP SOILS ARE FOUND ON INTERFLUVES AND NEAR FLOODPLAINS. MODERATE
CONSTRUCTING AN EMBANKMENT OF COMPACTED SOIL ACROSS A DRAINAGEWAY. IT IS USED TO DETAIN
RUNOFF, WITH LOW TO MODERATE PERMEABILITY.
SEDIMENT -LADEN RUNOFF FROM DRAINAGE AREAS 3 ACRES OR GREATER FOR ENOUGH TIME TO ALLOW MOST OF THE
SUSPENDED SOLIDS TO SETTLE OUT. IT CAN BE CONSTRUCTED ONLY WHERE THERE IS SUFFICIENT SPACE AND
APPROPRIATE TOPOGRAPHY MAXIMUM EFFECTIVE LIFE IS 18 MONTHS UNLESS DESIGNED AS A PERMANENT POND BY A
STORMWATER RUN-OFF CONS/DERATIONS•
QUALIFIED PROFESSIONAL.
STORMWATER MANAGEMENT. THE STORMWATER RUNOFF FROM THIS PROJECT DRAINS TEMPORARILY TO
OUTLET PROTECTION:
THE WIRE BACKED SILT FENCE. THE SILT FENCE WILL BE REMOVED AFTER THE DEVELOPMENT OF THE CAR
THE INSTALLATION OF RIPRAP CHANNEL SECTIONS AND/OR STILLING BASINS BELOW STORM DRAIN OUTLETS TO REDUCE
WASH PROJECT
EROSION AND UNDER-CUTTNG 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 TRANSFERRED BY THE 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 PROTECTIVE BARRIER INSTALLED TO PROHIBIT UNDESIRABLE USE OF AN EROSION CONTROL MEASURE.
1992
SILT FENCE CULVERT INLET
PROTECTION
-DISTANCE IS 6' MWIMUM IF FLOW
5 TOWARD EMBANKMENT
ROW
OPTIONAL STONE COMBINATION
Source: Adapted from VDOT Standard
Sheets and Va. DSWC
.0' 1.6•
I RPRAP
3.08
1992 3.36
TYPICAL ORIENTATION OF
TREA TMENT -
(SOIL STABILIZATION BLANKET)
WHERE THERE IS A BERM AT THE TOP OF THE SLOPE,
BRING THE MATERIAL OVER THE BERM AND ANCHOR R
BEHIND THE BERM.
ON SHALLQlY SLOPES, STRIPS OF
NETTING PROTEGTWE COVERINGS
MY BE APPLIED ACROSS
THE SLOPE.
I II111[11IIIIiI-,.
N n-.0 nn�b
n n n=n n 11 -
n I n Tynan-
=.1=u=R=n=n=n: R=n=n-
=11=1f 11=11-T[ ff
ON ,QEX SLOPES. APPLY
PROTECTIVE COVERING PARALLEL
TO THE DIRECTION OF FLOW
AND ANCHOR SECURELY.
BRING MATERIAL DOWN TO A LEVEL AREA BEFORE 4
TERMINATING THE INSTALLATION. TURN THE END
UNDER 4' AND STAPLE AT If INTERVALS.
T
.... ,.. •... ..12,
Plate 3.08-1 Source: Adapted from Ludlow Products Brochure
IN DITCHES, APPLY PROTECTIVE COVERING
PARALLEL TO ME DIRECTION OF FLOW.
USE CHECK SLOTS AS REQUIRED. AVOID
JOINING MATERIAL IN THE CENTER OF
THE DITCH IF AT ALL POSSIBLE.
Plate 3.36-1
SCOTT /R. 001LINS IZ
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SCALE
AS SHOWN
SHEET NO.
5
PRE -DEVELOPMENT SWM PLAN:
SCALE 1"=30'
POST -DEVELOPMENT SWM PLAN/
SCALE 1"=3o'
TMP 07800-00-00-017A
N/F TIRESUM LLC
DB 4417 PG 283
DB 2290 PG 421 (PLAT)
LIMP 78-S7ATHE /
BOUNDARY LIM TS OFDISTEPROPOSED
DISTURBANCE 5
USED TO DEFINE THE BOUNDARY FOR THE
QUALITY
VRRM WATER B CALCULATIONS,
a,.
EXISTING 1
�/ BLOCK
xxx
BUILDING
z
LIMITS OF
ANALYSIS FOR,,THIS
DEVELOPMENT / /� /////// ////// /
EXISTING
ALBEMARLE // //// // ///�// //
COUNTY IN .OUT=338.0 / / FFE
° PRESERVED SLOPES 355 84 / o%// /
04 / / � - CURB
BENCHMARK -TOPS
TMP 07700-00-00-04300 //J,, OF SDMH
COF ALBEMARLE / / C' TOP-354d9
D9 237
DB 2372, PG.580 / / � >.B RCP �
5A
A
/ p P Z OUT 34869 BENCHMARK
RESERVED E-3a 948-7.41
PARKING SIGNS ELE/ VDES-3SSRAV , (3x)
UP
R9
f1�0UB]ECT
HANDICAP
SIGNSPEA A/PERTY, TYP. U B R
/
Im Pre-ReDevelO ment ervious Area
0.49 ac. I P P
Summary
EXISTING 100-YR///// C N = 66 / (ON DA A- Water Quantity)
FEMA FLOODPLAIN / //�/// // BUSSTOP Existing Parking & Drive Aisles 1,258 sf
////�� - / /Tc= 0 10 h rs. 355 SIGN Existing Walkways 1,502 sf
Existing Buildings/Structures 500 sf
= 3,260 sf
Tc=0.10 hrs.. Pre-ReDevelopment Impervious Area
13' OF OLF w/ A ELEV.=0.25 EXISTING Summary
/ 0' OF CONC. FLOW w/ A ELEV.=9 BLOCK
BUILDING / (Within Limits of Disturbance- Water Qualit
Parking &Drive Aisles 2,558 sf
/ 1 Walkways 2,002002 sf
General Construction notes for Stormwater
Management Plans 30
1. All dams and constructed fill to be within 95%
of maximum dry density and 2% of optimum
moisture content. All fill material to be approved
by a geotechnical engineer. A geotechnical
engineer is to be present during construction of
dams.
2. Pipe and riser joints are to be watertight within
stormwater Management facilities.
3. For temporary sediment traps or basins which
are to be converted to permanent stormwater
management facilities; conversion is not to take
place until the site is stabilized, and permission
has been obtained from the erosion control
inspector.
GRAPHIC SCALE
0 15 30 60
PROPOSED STORMWATER MANAGEMENT NARRATIVE FOR THE PROJECT:
( IN FEET )
1 inch = 30 fL
OVERVIEW:
THE PROPOSED STORMWATER MANAGEMENT PLAN COMPLIES WITH PART 1113 REQUIREMENTS
TO MITIGATE IMPACTS FROM THE PROPOSED IMPROVEMENTS. SUMMARIES OF THIS
COMPLIANCE CAN BE VIEWED IN THIS VSMP SET AND IN THE ACCOMPANYING STORMWATER
MANAGEMENT CALCULATIONS PACKET.
STORMWATER QUANTITY:
CURRENTLYALL OFTHE EXISTING IMPERVIOUS AND PERVIOUS AREAS WITHIN THE PROJECT
LIMITS EXIT THE PROPERTY UNTREATED. THE PROPOSED PLAN WILL CHANGE THIS AND WILL
CAPTURE THE MAJORITY OF THE PROPOSED IMPROVEMENTS. THE CAPTURE AND DETENTION
OF THE MAJORITY OF THESE IMPROVEMENTS IS REPRESENTED BY POST -DEVELOPMENT
SUBAREAA, WHERE AN UNDERGROUND DETENTION SYSTEM ATTENUATES THE RUNOFF.
CHANNEL PROTECTION IS MET VIA 9VAC25-870-66 SECTION B.3.a. FLOOD PROTECTION
IS MET VIA 9VAC25-870-66 SECTION C.2.b.
PLEASE SEE THE ATTACHED STORMWATER MANAGEMENT CALCULATIONS PACKET FOR
ADDITIONAL DETAILS PERTAINING TO THE STORMWATER QUANTITY COMPLIANCE.
STORMWATER QUALITY:
THE STORMWATER QUALITY REQUIREMENTS FOR THIS DEVELOPMENT ARE MET THROUGH
THE BEST MANAGEMENT PRACTICE OF PURCHASING NUTRIENT CREDITS. A MINIMUM
PHOSPHOROUS REMOVAL RATE OF 0.46 Ibs/yr IS REQUIRED. THE DEVELOPER WILL
PURCHASE NUTRIENT CREDITS PRIOR TO THE ISSUANCE OF A LAND DISTURBANCE
PERMIT.
PLEASE SEE THE ATTACHED CALCULATIONS PACKET AND THIS SHEET FOR ADDITIONAL
DETAILS.
TMP 07800-00-00-017G2
N/F CHARLES ROTGIN JR i
DB 3880 PG 673
DB 1021 PG 410 (PLAT)
CHANNEL & FLOOD PROTECTION SUMMARY
/ Buildings 500 sf
1/ 5,060 sf
TMP 07800-00-00-017A
N/F TIRESUM LLC
DB 4417 PG 283
DB 2290 PG 421 (PLAT)
��ii���
040
LIMP78-j7A //
THE BOUNDARY FOR THE PROPOSED
LIMITS OF DISTURBANCE (0.59 ac.) IS I/�/
USED TO DEFINE THE BOUNDARY FOR THE /�/ // /��/�j /�° FDC
VRRM WATER QUALITY P CALCULATIONS, �/
/
X GM
/// EXISTING e
l� BLOCK W
BUILDING
TW-35600
BW 350.0 S-
/ LIMITS O ////// 0 / / / . J
ANALYSIS FOR THIS�
EXISTINGDEVELOPMEN
ALBEMARLE
COUNTY IN .our=336.0
PRESERVED SLOPES
I/ TW=355.00
STR-i
TMP700-00-00-04100
CO NTY OF ALBEMARLE
OE372, PG.580
/ r
PROSUBJECT
PERTY TYP./ /nn
ff'SLCTTRN'
LIS0c. No. 0357911'
UP �� 10/08/21 �Q
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__
sTR�s!- i M " /Summary
EXISTING 100-YR (ON DA A- Water Quantity)
FEMA FLOODPLAIN/ / �// /e �/
i- Parking &Drive Aisles 12,540 sf
/ /// Walkways 1,160 sf
_ ZZw va.19 SUBAREA A Buildings 384 sf / � 552 � 0.49 ac. / 14,084 sf
CN=85
Tc=0.10 hrs.
Tc=0.10 hrs. Post-ReDevelopment Impervious Area
/ 17' OF OLF w/ A ELEV.=0.35'
132 OF CONC. FLOW W/ A ELEV.=3.5' EXISTING
/ Summary
22' CHANNEL FLOW IN PIPES ® 3.8 ft/s BUILDING (Within Limits of Disturbance- Water Quality
/ Parking & Drive Aisles 13,840 sf
Walkways 1,660 sf
TMP0780o-00-00-017G2 Buildings 384 sf
N/F CHARLES ROTGIN JR
1 DB 3880 PG 673 15,884 sf
DB 1021 PG 410 (PLAT)
120
Pre-Dev. Method of 9VAC25-870-66 Method of 9VAC25-870-66
Subarea Post-Dev. Subarea ChannelProtectionCompliance Limits of Analysis for Channel
A I A Isection B.3.a (Energy Balance) I N/A (Energ
FACILITY INSPECTIONS DURING CONSTRUCTION:
CONSTRUCTION INSPECTIONS ARE CRITICAL TO ENSURE THE UNDERGROUND DETENTION SYSTEM IS PROPERLY
BUILT. BECAUSE THE TIMING OF THE INSTALLATION IS DICTATED BY THE CONTRACTOR, THE CONTRACTOR
SHALL BE RESPONSIBLE FOR CONTACTING THE ENGINEER COUNTY INSPECTOR AND CONTECH
REPRESENTATIVE PRIOR TO INSTALLATION. CONTECH, OR AN EQUIVALENT PIPE MANUFACTURER, SHALL BE
CONTACTED WELL AHEAD OF THE CONSTRUCTION START DATE TO ENSURE ADEQUATE LEAD TIME FOR
MATERIALS AND DELIVERY. MULTIPLE SITE VISITS AND INSPECTIONS ARE REQUIRED TO BE SCHEDULED BY THE
CONTRACTOR, WITH THE ENGINEER, COUNTY INSPECTOR & PIPE MANUFACTURER, DURING THE FOLLOWING
STAGES OF THE UNDERGROUND DETENTION SYSTEM CONSTRUCTION PROCESS:
i. PRE -CONSTRUCTION MEETING
2. INITIAL SITE PREPARATION (INCLUDING INSTALLATION OF PROJECT E&S CONTROLS)
3. EXCAVATION/GRADING (E.G., INTERIM/FINAL ELEVATIONS).
4. WHEN THE DETENTION PIPE SUBGRADE IS READY FOR PIPE CONSTRUCTION, BUT BEFORE STONE BEDDING IS
INSTALLED.
S. AFTER STONE BEDDING IS PLACED AND COMPACTED, BUT PRIOR TO PIPE INSTALLATION.
6. AT THE TIME OF THE PIPE INSTALLATION.
7. AFTER PIPE INSTALLATION, BUT PRIOR TO PLACING FILL OVER THE SYSTEM.
8. FINAL INSPECTION (DEVELOP A PUNCH LIST FOR FACILITY ACCEPTANCE)
PLEASE ALSO SEE BELOW, UNDER FACILITY MAINTENANCE, FOR REQUIRED INSPECTIONS AFTER INSTALLATION
IS COMPLETE.
FACILITY INSPECTIONS & MAINTENANCE AFTER CONSTRUCTION:
THE FOLLOWING MAINTENANCE TASKS SHALL BE PERFORMED BY THE CONTRACTOR IN THE FIRST YEAR
FOLLOWING THE INSTALLATION OF THE UNDERGROUND DETENTION SYSTEM.
i. FOR THE FIRST YEAR FOLLOWING CONSTRUCTION, THE SITE SHALL BE INSPECTED BY THE CONTRACTOR
QUARTERLY AND AFTER STORM EVENTS THAT EXCEED 1/2 INCH OF RAINFALL.
2. THE CONTRACTOR SHALL LOOK FOR BARE OR ERODING AREAS IN THE CONTRIBUTING DRAINAGE AREA AND
AROUND THE UNDERGROUND DETENTION SYSTEM AND MAKE SURE THEY ARE IMMEDIATELY STABILIZED.
CONTRACTOR SHALL SPOT RESEED AS NECESSARY AND ENSURE ADEQUATE SITE COVERAGE IS PROVIDED
WITHIN THE FIRST YEAR. AT THE QUARTERLY INSPECTIONS, AND AFTER EACH RAINFALL EVENT IN EXCESS OF
2 , THE CONTRACTOR SHALL PERFORM THE ANNUAL MAINTENANCE TASKS DESCRIBED BELOW IN #3.
AFTER THE FIRST YEAR THE OWNER SHALL PERFORM FOLLOW-UP INSPECTIONS ANNUALLY, AND AFTER EACH
SIGNIFICANT RAINFALL EVENT:
3. A SPRING MAINTENANCE INSPECTION AND CLEANUP SHALL BE CONDUCTED ANNUALLY. THE MAINTENANCE
PROGRAM FOR THE UNDERGROUND DETENTION SYSTEM SHALL INCLUDE CLEANING ITANNUALLY OF TRASH,
DEBRIS & SEDIMENT AND ENSURING THE INTEGRITY OF THE WEIR PLATE, TRASH RACK AND OUTFALL &
INFLOW PIPES. THE OWNER SHALL ENSURE THE SYSTEM IS OPERATING AS INTENDED AND IS NOT CLOGGED
OR DAMAGED. THE OWNER SHALL IMMEDIATELY CLEAN & REPAIR THE FACILITY AS NECESSARY AND SHALL
PAY SPECIAL ATTENTION TO THE INLET AND OUTLET LOCATIONS. THE ACCESS MANHOLES SHALL BE USED
FOR INSPECTION AND MAINTENANCE.
Balance Satisifi
Method of 9VAC25-870-66
Flood Protection Compliance
Section C.2.b (10-yr. Post Flow < Pre
Method of 9VAC25-870-66
Limits of Analysis for Flood Protection
'A (10-yr. Post Flow < Pre Flow Satisifie
UNDERGROUND DETENTION SYSTEM GENERAL NOTES:
1. TRASHRACKS SHALL BE INSTALLED ON ALL ORIFICES, INCLUDING THOSE LOCATED ALONG
THE WEIR PLATE WITHIN THE UNDERGROUND DETENTION SYSTEM, IN ACCORDANCE w/ THE
DETAIL SHOWN ON ON THIS SHEET (OR EQUIVALENT).
2. DETENTION SYSTEM's WEIR PLATE TO BE PRE -MANUFACTURED AND DELIVERED TO THE
SITE. WEIR PLATE SHALL BE SECURELY AFFIXED TO THE INSIDE WALLS OF THE MANHOLE
STRUCTURE.
3. PRIVATE DESOTO COURT LOCATED WITHIN THE SWM EASEMENT, SHALL SERVE AS ACCESS
TO THE PROPOSED UNDERGROUND DETENTION SYSTEM.
4. CONTACT COLLINS ENGINEERING (434.293.3719) REGARDING ANY QUESTIONS CONCERNING
THE UNDERGROUND DETENTION SYSTEM.
5. ALL FILL EMBANKMENT MATERIAL SHALL CONSIST PREDOMINANTLY OF SOIL AND BE
PLACED IN SUCCESSIVE UNIFORM LAYERS NOT MORE THAN 8 INCHES IN THICKNESS BEFORE
COMPACTION OVER THE ENTIRE AREA IN ACCORDANCE WITH CURRENT VDOT ROAD AND
BRIDGE SPECIFICATIONS, OR THE FILL EMBANKMENT MATERIAL SHALL MEET THE PIPE
MANUFACTURER s SPECIFICATIONS OUTLINED BELOW WHICHEVER IS MORE STRINGENT).
6. ALL FILL SHALL BE PLACED AT 95% COMPACTION AND TESTED BY A GEOTECHNICAL
ENGINEER TO ENSURE COMPACTION IS REACHED AND MAINTAINED, OR THE FILL SHALL
MEET THE PIPE MANUFACTURER's SPECIFICATIONS OUTLINED BELOW (WHICHEVER IS MORE
STRINGENT).
7. VDOT STD. IS-1 & ST-1 ARE REQUIRED ON ALL PROPOSED PUBLIC STRUCTURES AND THE
UNDERGROUND DETENTION SYSTEM's JUNCTIONS.
8. PRIOR TO CONSTRUCTION THE CONTRACTOR SHALL TEST -DIG AT THE EXISTING INLET &
OUTFALLTO CONFIRM THE INVERTS AND TO ENSURE THE PROPOSED GRADES CAN BE
ACHIEVED. CONTRACTOR SHALL CONTACT COLLINS ENGINEERING OF ANY DISCREPANCIES IN
THE HORIZONTAL OR VERTICAL ALIGNMENT PRIOR TO ORDERING AND CONSTRUCTION.
9. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH OSHA
STANDARDS FOR CONSTRUCTION INDUSTRY (29 CFR PART 1926).
10.PENDING PRIOR APPROVAL BY COLLINS ENGINEERING, THE DRAINAGE PIPE MATERIALS MAY
BE SUBSTITUTED. ALL DRAINAGE PIPE INSTALLATION PRACTICES SHALL BE IN ACCORDANCE
WITH CURRENT VDOT STANDARDS AND REQUIREMENTS. CONTRACTOR SHALL ENSURE
MINIMUM COVER REQUIREMENTS ARE MET WITH ANY PIPE SUBSTITUTION.
�A COUNTY OF ALBEMARLE
Department of Community Development
y Construction Record Drawings (As -built) for VSMP
The following is a list of information required on construction record drawings for
stormwater facilities reference Water Protection Ordinance 17-422 . It isf 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 Location with geo-coordinates of all facilities.
4. Verified Drainage Area maps for the drainage area treated, and for drainage to the facilities.
5. Current physical and topographic survey for all earthen structures. Ponds should include a survey
of the pond bottom. Surveys should verify pond volumes are per design. Corrections may be required
for alterations from the design.
6. Plants, location and type.
7. Plans and profiles for all culverts, Pipes, Risers, Weirs and Drainage Structures - Display the
installed type of drainage structures, culvert/pipe size, weirs, materials, inlets or end treatment(s),
inlet and outlet protection, alignment and invert elevations compared to design.
8. Computations: For significant deviations from design, provide sealed computations verifying that
P g g .P P Y g
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.
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SHEET NO.
6
STR-1 VDOT STD. DOGI
INV.IN=343
INV. I N=345.7E
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350
350
12" HDPE
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12 HDPE
340
13.43
LF @a 2.00%
340
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NOTE: PROPOSED STORM SEWER SHOWN IS CLASS III RCP. THE
CONTRACTOR MAY SELECT A VDOT APPROVED MATERIAL IN LIEU
OF THE CL. III RCP FROM THEIR APPROVED LIST PROVIDED ALL
PIPE, PIPE BEDDING, BACKFILL AND INSTALLATIONS ARE IN
ACCORDANCE WITH THE CURRENT VDOT STANDARDS. ANY PIPE
MATERIAL PROPOSED AS CL. IV RCP SHALL NOT BE
SUBSTITUTED WITH ANOTHER PIPE MATERIAL.
EX. INV. IN=343-71
355 EX. INV. OUT=343-45
)GRADE
iGRADE 350
EXISTING G
PROPOSED ACCESS MH
W/ STAIRS FOR INSPECTION
& MAINTENANCE
RESTRICTIVE WEIR
PLATE AT LOW POINT
TO DRAIN THE SYSTEM
7fSEE DETAIL
ON THIS SHEET
o-VR PEAK
wse=3415�
PROPOSED ELEVATED 22"
7z-VR PEAK
PIPEALLOWS MORE
a-YRP
WSEgy6.6a
SIGNIFICANT& LESS
345
wSE-3y6.
s
-FREQUENT STORM EVENTS
TO SAFELY BYPASS THE
UNDERGROUND
WEIR PLATE
DETENTION SYSTEM
INVERT=344.00
340
151' RCP
3714 LF @a o.67°/o
EX. 18" RCP
PROPOSED LOWER 15"
82.63 LF @a
6.5g% UNDERGROUND DETENTION
PROPOSED 48" CMP
SYS EM PRIMARY OU
FAL
_UNDERGROUND
EX. INV.
OUT=338.00
DETENTION
335
SYSTEM
.+
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10+00 10+50
EMERGENCY BYPASS PROFILE PROFILE]
HUGGER
SINGLE BAR, BAND FLAT GASKET
BOLT AND STRAP I
FLAT GASKET
CONNECTION DETAIL
(SBBS)
22/3"1 RE -ROLLED END HEL-COR PIPE
GENERAL NOTES:
1. JOINT IS TO BE ASSEMBLED PER AASHTO BRIDGE CONSTRUCTION SPECIFICATION SEC 26A.2.4.
2. BAND MATERIALS AND/OR COATING CAN VARY BYLOCATION. CONTACTYOUR CONTECH REPRESENTATIVE FOR AVAILABILITY.
3. SANDSARE SHAPEDTO MATCH THE PIPE -ARCH WHEN APPLICABLE.
4. BANDSARE NORMALLY FURNISHED AS FOLLOWS:
• 12" THRU 4B" 1-PIECE
• 54' THRU 96' 2-PIECES
• 102' THRU 144' 3-PIECES
5. BAND FASTENERS ARE ATTACHED WITH SPOT WELDS, RIVETS OR HAND WELDS.
6. ALL CMP IS REROLLED TO HAVE ANNULAR END CORRUGATIONS OF 2 W"xi 12"
7. DIMENSIONS ARE SU BJECT TO MANUFACTU RING TOLERANCES.
S. ORDER SHALL DESIGNATE GASKET OPTION, IF REQUIRED (SEE DETAILS ABOVE).
H-12 HUGGER BAND DETAIL
NOT TO SCALE
20 MIL PE
IMPERMEABLE
LINER OVER
TOP OF PIPE
(IF REQUIRED)
TYP.1 124" TYP.
TYPICAL SECTION VIEW
NOT TO SCALE
LIMITS OF
REQUIRED
BACKFILL
24" SEE TYPICAL
-BACKFILL DETAIL
NOTES
NOTE: IF SALTINGAGENTS FOR SNOW AND ICE REMOVAL ARE USED ON OR NEAR THE
PROJECT, A GEOMEMBRANE BARRIER IS RECOMMENDED WITH THE SYSTEM. THE
GEOMEMBRANE LINER IS INTENDED TOHELP PROTECTTHE SYSTEM FROM THE
POTENTIAL ADVERSE EFFECTS THAT MAY RESU LT FROM A CHANGE IN THE
SURROUNDING ENVIRONMENT OVER A PERIOD OF TIME. PLEASE REFER TO THE
CORRUGATED METAL PIPE DETENTION DESIGN GUIDE FOR ADDITIONAL INFORMATION.
355
NOTE: ALL DRAINAGE STRUCTURES WITH A
STR-7 VDOT STD. DI-3C (L=1o')
DEPTH OF 12' OR GREATER SHALL HAVE
TP=35° 33
SAFETY SLABS IN ACCORDANCE WITH
INV. OUT=344-75 TO UGD
STANDARD SL-1 AS FOUND IN THE 2008
350
ROAD AND BRIDGE STANDARDS.
NOTE: ALL DRAINAGE STRUCTURES WITH A
DEPTH OF 4' OR GREATER SHALL HAVE
-15" RCP
STEPS IN ACCORDANCE WITH STANDARD
25.05 LF @a o.54%
ST-1 AS FOUND IN THE 2008 ROAD AND
345
BRIDGE STANDARDS.
PROPOSED 48" CMP UNDERGROUND DETENTION
SYSTEM @a o.5o%TO ATTENUATE RUNOFF CAUSED
FROM THIS DEVELOPMENT.
TOTAL CMP LENGTH=16o.00'
340
1
0+00 O+So 1+00 1+5o 2+00 2+So
STR-7 - STR-1 PROFILE
1/2" zinc plated hook
attached with a/B' fastener
Isometric
PIPe 1 /t/% HOPE Plate (optional)culvert ll�` ��•'
HBPB structural plastic with
2-1/8" 11 and 1/•" pleb
manufactured by Plastic
Solatlona tneor equal
shawo with optional Plate
HnPF .t>uatvrnl pla.tla with
2 /B" holes and 1/4' plate
SeeLloR manufactured by Plastic
Solution. Inc or equal
6/11" die hole
o a
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00
0 0 4
sing.,c BYP ifiETe VEd LION
Hle
PLASTIC P o. Bn. 4.180
DEBRIS CAGE SOLUTIONS Mlnmen.. va UN4
INC. 87/-877-5727
npledi-ed. ..
UNDERGROUND DETENTION SYSTEM MINIMUM TRENCH & BACKFILL
REQUIREMENTS:
1. THE TRENCH CONTAINING THE DOUBLE RUN OF 48" CMP STORM PIPE SHALL
HAVE A 168" WIDE TRENCH. THE TRENCHES CONTAINING THE 12" BYPASS
HDPE PIPE AND THE 15" OUTFALL PIPE SHALL HAVE 36" WIDE TRENCHES.
CONTRACTOR SHALL WRAP THE EXCAVATED TRENCHES WITH A 6 OUNCE
FILTER FABRIC CLOTH. A SUITABLE FOUNDATION SHALL BE BENEATH THE
TRENCHES' FILTER FABRIC CLOTHS.
2. TRENCHES TO INCLUDE A 6" #57 STONE BED AT 95% COMPACTION BENEATH
THE HP STORM PIPES.
3. TRENCHES SHALL BE BACKFILLED WITH #57 STONE AT 95% COMPACTION
AND SHALL EXTEND A MINIMUM OF 6" VERTICALLY ABOVE THE CROWN OF
THE STORM PIPES.
4. THE TOP OF THE #57 STONE SHALL BE COVERED WITH A 6 OUNCE FILTER
FABRIC CLOTH, OVERLAPPING THE PREVIOUSLY INSTALLED CLOTH THAT
SURROUNDS THE BOTTOM AND SIDES OF THE TRENCHES.
5. SUITABLE FILL REACHING THE FINISHED GRADES SHALL BE APPLIED ABOVE
THE TOP LAYER'S FILTER CLOTH, MEETING MINIMUM PIPE MANUFACTURER'S
REQUIREMENTS TO PREVENT FLOATATION AND ENSURE PIPE INTEGRITY IS
MAINTAINED.
6. A MINIMUM COVER OF 12" IS REQUIRED ABOVE THE CROWN OF THE STORM
PIPES.
7. SEE THE'TYPICAL BACKFILL DETAIL' ON THIS SHEET FOR ADDITIONAL
UNDERGROUND DETENTION SYSTEM PIPE REQUIREMENTS.
335
NOTES:
1. ALL FILL TO BE PLACED AT 95% COMPACTION.
2. MINIMUM 3.5' OF COVER MUST BE MAINTAINED OVER W/L.
3. MINIMUM OF i' OF VERTICAL SEPARATION FROM STORM
SEWER & W/L AND 1.5' OF SEPARATION BETWEEN W/L &
SANITARY SEWER MUST BE PROVIDED.
NOTE: CLASS I BACKFILL MATERIAL SHALL BE CRUSHER RUN
AGGREGATE SIZE NO. 25 OR 26, AGGREGATE BASE MATERIAL SIZE
21A OR 21B, FLOWABLE FILL, OR CRUSHED GLASS CONFORMING
TO THE SIZE REQUIREMENTS FOR CRUSHER RUN AGGREGATE SIZE
25 AND 26, PER VDOT ROAD AND BRIDGE SPECIFICATIONS,
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BEDDING
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5
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CONTRACTOR SHALL CALL THE COUNTY INSPECTOR & f
ENGINEERING DEPARTMENT 24-HOURS BEFORE ANY / c. No. 035791 nANTICIPATED CONSTRUCTION ACTIVITIES FOR THE 10/08/21BMPs. THIS IS INCLUSIVE OF WHEN THEUNDERGROUND DETENTION SYSTEM SUBGRADEISsSIONAL
� READY FOR PIPE CONSTRUCTION, BUT BEFORE PROPOSED LOWER 015" /
STONE BEDDING IS INSTALLED. _ UNDERGROUND DETENTION
SYSTEM PRIMARY OUTFALL
i
X / j PROPOSED ACCESS MH W/ STAIRS FOR
Y INSPECTION & MAINTENANCE, TYP.
ACCESS MH TO BE LOCATED UPSTREAM /
& DOWNSTREAM FROM RESTRICTIVE
WEIR PLATE AND AT THE MIDPOINTS & /
PROPOSED VARIABLE WIDTH PUBLIC / HIGH POINTS OF THE SYSTEM, AS / I
SWIM FACILITY& ACCESS EASEMENT SHOWN.
j DB., PG. I
I / ACCESS MANHOLE (TYP.) /� 048 INV. Z o
344.00' IL - O a U
In
/� 048 INV. / 74 LF � / in
U LU/ 344.37/ 0.57 J o a
00 �1� / z E
O _ 74 LF @ @� ~ z
0.5%
W
1 448" INV. / 048'' INV. / �/
/ _ 344.40' 344.03' li
- - - - -
RESTRICTIVE STEEL WEIR PLATE, AT LOW POINT, TO DRAIN PROPOSED ELEVATED 012" PIPE /
PARKING LOT TO SERVE AS THE SYSTEM. SEE DETAIL ON THIS SHEET. ALLOWS MORE SIGNIFICANT &
ACCESS TO SIN FACILITY / LESS FREQUENT STORM EVENTS
TO SAFELY BYPASS THE
UNDERGROUND DETENTION DETAIL: SCALE / j // UNDERGROUND DETENTION
SYSTEM
GRAPHIC SCALE
10 0 5 10 20 40
EMBANKMENT CONDITION
LT
INITIAL FILL ENVELOPE( 1
DIAMETER
MIN.
COVER
CORR.
PROFILE
T-10"
12"
1 112" x 1/4"
12"-48"
12"
2 ZY x 1/2"
54"-96"
12"
3" x V, 5" x V
102"-144"
D/8
3" x V, 5" x 1"
BACKFILL REQUIREMENTS FOLLOW THE GUIDELINES OF AASHTO LRFD BRIDGE DESIGN (SEC 12) AND CONSTRUCTION (SEC 26)
1 MIN IMU M TRENCH WIDTH MUST ALLOW ROOM FOR PROPER COMPACTION OF HAUNCH MATERIALS UNDER THE PIPE.
THE MINIMUM TRENCH WIDTH (12.6.6.1):
PIPE s 12": D+16"
PIPE> 12": 1.5D+12"
la MIN IMUM EMBANKMENT WIDTH (IN FEET) FOR INITIAL FILL ENVELOPE (12.6.6.2):
PIPE <24": 3.OD
PIPE 24"- 144": D+4'0"
PIPE > 144": D + 10'0"
2 THE FOUNDATION UNDER THE PIPE AND SIDE BACKFILL SHALL BE ADEQUATE TO SUPPORT THE LOADS ACTING UPON IT(26.5.2).
3 BEDDING MATERIAL SHALL BE A RELATIVELY LOOSE MATERIAL THAT IS ROUGHLY SHAPED TO FIT THE BOTTOM OF THE PIPE, AND A
MIN IMU M OF TWICE THE CORRUGATION DEPTH IN THICKNESS, WITH THE MAXIMUM PARTICLE SIZE OF ONE-HALF OF THE CORRUGATION
DEPTH (26.3.8,1, 26.5.3).
4 CORRUGATED STEEL PIPE (CSP/HEL-COR).
5 HAUNCH ZONE MATERIAL SHALL BE HAND SHOVELED OR SHOVEL SLICED INTO PLACE TO ALLOW FOR PROPER COMPACTION (26.5.4).
5a INITIAL BACKFILL FOR PIPE EMBEDMENTTO MEETAASHTOA-1,A-2 OR A-3 CLASSIFICATION, ORAPPROVED EQUAL, COMPACTEDTO 90%
STANDARD PROCTOR (T 99). MAXIMUM PARTICLE SIZE NOT TO EXCEED 3" (12.4.1.2). ALL LIFTS PLACED IN A CONTROLLED MANNER, IT IS
RECOMMENDED THAT LIFTS NOT EXCEED AN B" UNCOMPACTED LIFT HEIGHTTO PREVENT UNEVEN LOADING, AND THE LESSER OF 113
THE DIAMETER OR 24" AS THE MAXIMU M DIFFERENTIAL SIDE -TO -SIDE (26.5.4).
6 INITIAL BACKFILL ABOVE PIPE MAY INCLUDE ROAD BASE MATERIAL (AND RIGID PAVEMENT IF APPLICABLE). SEE TABLE ABOVE.
6a TOTAL HEIGHT OF COMPACTED COVER FOR CONVENTIONAL HIGHWAY LOADS IS MEASURED FROM TOP OF PIPE TO BOTTOM OF
FLEXIBLE PAVEMENT OR TOP OF RIGID PAVEMENT (12.6.6.3).
7 FINAL BACKFILL MATERIAL SELECTION AND COMPACTION REQUIREMENTS SHALL FOLLOW THE PROJECT PLANS AND SPECIFICATIONS
PER THE ENGINEER OF RECORD (26.5.4.1).
NOTES:
• GEOTEXTILE SHOULD BE CONSIDERED FOR USE TO PREVENT SOIL MIGRATION INTO VARYING SOIL TYPES (PROJECT ENGINEER).
• FOR MULTIPLE BARREL INSTALLATIONS THE RECOMMENDED STANDARD SPACING BEVVEEN PARALLEL PIPE RUNS SHALL BE PIPE DIA./2
EUT NO LESS THAN 12", OR 36" FOR PIPE DIAMETERS 72" AND LARGER.
• CONTACTYOUR CONTECH REPRESENTATIVE FOR NONSTANDARD SPACING (TABLE C12.6.7-1).
TYPICAL BACKFILL DETAIL
NOT TO SCALE
r4
W fV
( IN FEET ) Q o
1 inch = 10 ft. p o
CD
A'
NOTE:
WEIR PLATE TO BE BOLTED &
SEALED TO DETENTION SYSTEM
WITH WATERTIGHT CONNECTIONS.
MANUFACTURE / INSTALL ONE (1) OVERFLOW WEIR
(EQUIVALENT DIAMETER=12.89") ACROSS THE STEEL PLATE
(INVERT ELEVATION 347-50')
MANUFACTURE / INSTALL ONE (1) 06"X7" MID -FLOW
ORIFICE IN THE STEEL PLATE (INVERT ELEVATION 346.20')
INSTALLTRASH RACKS ON ALLY
ORIFICES, TYP. SEE THIS SHEET
FOR DETAIL, OR EQUIVALENT.
MANUFACTURE / INSTALL ONE (i) Oily " LOW -FLOW
ORIFICE IN THE STEEL PLATE AT THE LOW POINT OF THE
DETENTION SYSTEM (INVERT ELEVATION=344-00')
I�gpl�l
WEIR PLATE DETAIL
SCALE:1"=5'
FRONT
48'Oto 90"0 FITTING REINFORCEMENT
MAYBE REQUIRED BASED ON HEIGHT OF
COVER AND LIVE LOAD CONDITION
TYPICAL MANWAY DETAIL
NOT TO SCALE
NFORCED 12 GA.
STEEL PLATE ELEV.=348.00'
(TOP OF PIPE;
'D 01
O
ELEV.=344-00' N o
(BOTTOM OF PIPE) N M
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JOB NO.
112066
SCALE
AS SHOWN
7
TEMPORARY COVER FOR
CONSTRUCTION LOADS
HEIGHT OF
COVER
CONSTRUCTION LOADS
FINISHED
GRADE
FOR TEMPORARY CONSTRUCTION VEHICLE LOADS, AN EXTRAAMOUNT OF COMPACTED COVER MAY BE REQUIRED OVER
THE TOP OF THE PIPE. THE HEIGHT -OF -COVER SHALL MEET THE MINIMUM REQUIREMENTS SHOWN IN THE TABLE BELOW.
THE USE OF HEAVY CONSTRUCTION EQUIPMENT NECESSITATES GREATER PROTECTION FOR THE PIPE THAN FINISHED
GRADE COVER MINIMUMS FOR NORMAL HIGHWAY TRAFFIC.
AXLE LOADS
PIPE SPAN,
INCHES
(kips)
18-50 1 50-75 1 75-110 1 110-150
MINIMUM COVER
(FT)
2.0
2.5
3.0
3.0
12-42
48-72
3.0
3.0
3.5
4.0
78-120
3.0
3.5
4.0
4.0
126-144
3.5
4.0
4.5
4.5
'MINIMUM COVER MAYVARY, DEPENDING ON LOCAL CONDITIONS. THE CONTRACTOR MUST PROVIDE THE ADDITIONAL
COVER REQUIRED TO AVOID DAMAGE TO THE PIPE. MINIMUM COVER IS MEASURED FROM THE TOP OF THE PIPE TO
THE TOP OF THE MAINTAINED CONSTRUCTION ROADWAY SURFACE.
CONSTRUCTION LOADING DIAGRAM
NOT TO SCALE
SPECIFICATION FOR CORRUGATED STEEL PIPE -ALUMINIZED TYPE 2 STEEL
36"0 MAX., HS-25 ACCESS CASTING
WITH GRADE RINGS AS REQUIRED, TO
BE PROVIDED AND INSTALLED BY
CONTRACTOR. MAYBE TOP MOUNTED
CMP
PROTECTION
(AS SHOWN) OR RECESSED.
RIM/FINISHED
SLAB
___ __
GRADE _ _ =t= VARIES
v
]}
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_
a d1
i
GASKET MATERIAL / 0CMP,RISER
SUFFICIENTTO PRE\ ENT a r.
SLAB FROM BEARING ON w
RISER TO BE PROVIDED BY
CONTRACTOR. 01311"TYP. f9
SCOPE
HANDLING AND ASSEMBLY
THIS SPECIFICATION COVERS THE MANUFACTURE AND
SHALL BE IN ACCORDANCE WITH RECOMMENDATIONS OF THE
INSTALLATION OF THE CORRUGATED STEEL PIPE (CSP) DETAILED IN
NATIONAL CORRUGATED STEEL PIPE ASSOCIATION (NCSPA)
THE PROJECT PLANS.
INSTALLATION
MATERIAL
SECTION VIEW
ACCESS CASTING NOT SUPPLIED BY CONTECH
d
0 A
/�A0, r B
#4 DIAGONAL TRIM
BAR (TYP. 4 PLACES),
SEE NOTE 7.
OPENING IN
PROTECTION
SLAB FOR
ACCESS
SHALL BE IN ACCORDANCE WITH AASHTO STANDARD
THE ALUMINIZED TYPE 2 STEEL COILS SHALL CONFORM TOTHE
SPECIFICATIONS FOR HIGHWAY BRIDGES, SECTION 26, DIVISION II
APPLICABLE REQUIREMENTS OF AASHTC M274 OR ASTM A929.
OR ASTM A798 AND IN CONFORMANCE WITH THE PROJECT PLANS
AND SPECIFICATIONS. IF THERE ARE ANY INCONSISTENCIES OR
PIPE
CONFLICTS THE CONTRACTOR SHOULD DISCUSS AND RESOLVE
WITH THE SITE ENGINEER.
THE CSP SHALL BE MANUFACTURED IN ACCORDANCE WITH THE
APPLICABLE REQUIREMENTS OF AASHTC M36 OR ASTM A760. THE
IT IS ALWAYS THE RESPONSIBILITY OF THE CONTRACTOR TO
PIPE SIZES, GAGES AND CORRUGATIONS SHALL BE AS SHOWN ON
FOLLOW OSHA GUIDELINES FOR SAFE PRACTICES.
THE PROJECT PLANS.
ALL FABRICATION OF THE PRODUCT SHALL OCCUR WITHIN THE
UNITED STATES.
MATERIAL SPECIFICATION
NOT TO SCALE
3/4' (#6) REBAR CAN BE CUT FLUSH -
TO OUTSIDE OF RAIL
(BAR LENGTH = 16%") OR BAR CAN
EXTEND BEYOND RAIL%2't -
T., \ 3/8'
12" TYP.
CENTER TO CENTER
RUNG SPACING -
71
i
r
INTERRUPTED BAR
REPLACEMENT, SEE
NOTE6.
ALL STEEL PER
ASTM A36
BRICATION TOLERANCE: S)q'
AT BAR AND REBAR: MILL
�LERANCE APPLIES
�6" HOLE w/ %" REBAR RUNG,
WELD REBAR TO RUNG ON
OUTSIDE OF STEEL RAIL
23/2" x N" FLAT BAR SIDE RAIL
PLAN SIDE
NOTES:
1. LADDERS CAN BE MADE IN 20'-0' STANDARD LENGTHS AND CUT TO FIT
2. ALL MATERIAL TO MEET ASTM A36
3. LADDER TO BE HOT DIPPED GALVANIZED PER ASTM A-123 AFTER
FABRICATION IS COMPLETE
STANDARD LADDER DETAIL
NOT TO SCALE
PART NO. HALAGVL16
PROVIDE MINIMUM OF 4ATTACHMENT
ANGLES (2 ON EITHER SIDE OF LADDER RAIL)
TO CONNECT LADDER TO RISER EXTENSION
RISER w/ LADDER AND STEPS
IF EXTENSION IS REQUIRED
RISER w/ LADDER
AND STEPS
LS"x3'xy"x16'LONG ATV-0"
SPACING. LONG LEG TO
MAIN LINE CMP 4 PROJECT OUT. WELD TOP
l'-T AND BOTTOM OF 3" LEG TO EACH
2z/3 x 2, 5 x 1, 3 x 1 ETC. MAX CORRUGATION CREST
(THESE ANGLES SHOULD BE USED
FOR LARGER DIAMETER
a MAINLINES WHERE ADDITIONAL
STEPS ARE NEEDED)
NOTE:
THIS DRAWING IS INTENDED TOAPPLYTO LADDERS
INSTALLED IN RISERS HAVINGA DIAMETER OF 30' OR
LARGER. DUE TO SPACE CONSTRAINTS AND LIMITED
ACCESSIBILITY, THE PRACTICALITY AND SUITABILITY OF
UTILIZING RISERS SMALLER THAN 30' DIAMETER
AND/OR INCORPORATING LADDERS IN THESE SMALLER
DIAMETER RISERS SHOULD BE ADDRESSED BYTHE
OWNERAND PROJECT ENGINEER
#4 DIAGONAL TRIM
BAR (TYP.4 PLACES),
SEE NOTE 7.
**
-
2" COVER
(TYP)
I
tL---1
REINFORCING TABLE
"BEARING
QJ CMP
A
B 0
REINFORCING
PRESSURE
RISER
(PSF)
24
4'0
26
#5 @ 10" OCEW
2,540
4'x4'
#5 @ 10" OCEW
1,900
30
4'-6"0
32
#5 @ 10" OCEW
2,260
4'-6" x 4'-6"
#5 @ 9- OCEW
1,670
3fi"
510
38
#5 @ 9" OCEW
2,060
5' x 5'
#5 @ 8" OCEW
1,500
42"
5'-6"O
44
#5 @ 8" OCEW
1,490
5'-6" x 5'-6"
#5 @ 8" OCEW
1,370
48"
TO
50
#5 @ T OCEW
1,210
6' x 6
#5 @ T OCEW
1,270
"ASSUMED SOIL BEARING
G
I II i � II I
�--�T---- T�----J
r----yt ---f -_�---tt-----�
TF
I II r
4-___J1
I
\�)'' LI
z-\ � 1
�f
,
i OPENING IN
d
1 lI PROTECTION
--
---�-� '--i ---- SLAB
I
AC EBS
I
i j l
I
STANDARD STANDARD
REINFORCING, REINFORCING,
SEE TABLE SEE TABLE
ROUND OPTION
PLAN VIEW
NOTES:
1.
DESIGN IN ACCORDANCE WITH AASHTO, 17th
EDITION AND AC 1350.
2.
DESIGN LOAD HS25.
3.
EARTH COVER = V MAX.
4.
CONCRETE STRENGTH =4,000 psi
5.
REINFORCING STEEL= ASTM A615, GRADE 60.
6.
PROVIDE ADDITIONAL REINFORCING AROUND
OPENINGS EQUALTOTHE BARS INTERRUPTED,
HALF EACH SIDE. ADDITIONAL BARS TO BE IN THE
SAME PLANE.
"NOTE: WHEN RISER EXTENSIONS
ARE USED, THE PLANTSHOULD
CUT 3' FROM THE SIDE RAILS AS
SHOWN
"3' FROM BOTTOM OF LADDER
RAIL
IL ORISER JOINT
'3' FROM TOP OF LADDER
RAIL TO RISER JOINT
LADDER RAILS AND RUNGS
(2) Y,' FILLET WELDS 1' LONG
ATTACH MENT ANC
MINIMUM OF 4ANGLES P
LADDER SECTION, (2 EACH SIDE
LADDER) 6' MAX. SPACI
VERTICAL
6" FROM RUNGTO
RISER JOINT
6' FROM RUNG TO
RISER JOINT
SECTION A -A
RISER LADDER DETAIL
NOT TO SCALE
RISER NORMALLYCMP
WITH 2N' x%'
CORRUGATIONS
(4) &" FILLET WELDS
FROM EACH ANGLE TO
CORRUGATION CREST
(2 WELD EACH SIDE)
L3'x3"xYl
5Y2" LONG
111
14
,Fib
(I
OO Q)
11
I I
f�
11
L
i 111
I
It
I
INTERRUPTED BAR
REPLACEMENT,
11__
II
II ��I
/
I
I I
II
I I
I
I
SEE NOTE 6.
OB
SQUARE OPTION PLAN VIEW
7. TRIM OPENING WITH DIAGONAL#4 BARS, EXTEND BARS
MINIMUM OF 12" BEYOND OPENING, BEND BARS AS REQUIRED
TO MAINTAIN BAR COVER.
8. PROTECTION SLAB AND ALL MATERIALS TO BE PROVIDED AND
INSTALLED BY CONTRACTOR.
9. DETAIL DESIGN BY DELTA ENGINEERS, ARCHITECTS AND LAND
SURVEYORS, ENDWELL, NY.
MANHOLE CAP DETAIL
NOT TO SCALE
(4)y6' FILLET WELDS FROM
EACH ANGLE CORRUGATION
CREST (2 WELDS EACH SIDE)
(4)L3"x3'xNs
5}¢" LONG
(2) )/4' FILLET WELDS
1' LONG FROM EACH ANGLE
TO LADDER RAIL
LADDER RAILS
AND RUNGS
PLAN
- A
F----
I -
(4)y6" FILLET WELDS
FROM EACH ANGLE TO
CORRUGATION CREST
(2 WELDS EACH SIDE)
5%2 LONG -
�A
ELEVATION
RI!
LADDER Ri
AND RUNG
CUT/FILL QUANTITIES
VOLUME OF CUT FOR LIMITS OF DISTURBANCE: 1,3.00 CU. YARD
VOLUME OF FILL FOR LIMITS OF DISTURBANCE: Too CU. YARD
NET VOLUME OF CUT FOR LIMITS OF DISTURBANCE: 3.,000 CU. YARD
6" OF TOPSOIL SHALL BE HAULED OFFSITE TO A PERMITTED (SWPPP) SITE
AS EXPLAINED IN EACH PHASE NARRATIVE AND REITERATED HERE, 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.
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 3o DAYS.
PERMANENT STABILIZATION SHALL BE APPLIED TO AREAS THAT ARE TO BE LEFT DORMANT FOR
MORE THAN ONE YEAR.
SCOTT/R. MtLINS'Z
Lic. No. 0357911n
A 10/08/21
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112066
SCALE
AS SHOWN
SHEET NO.
8