HomeMy WebLinkAboutWPO201300064 Plan - Approved WPO VSMP 2015-04-15'D
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INDEX of SHEETS NATEP,,.. PROTEGTION ORDINANGE AFFLIGATION
DRAW I NG NO. SHEET NO. TITLE
6—i I / 1tr_ 14 6491 ZL`.R @��T
JEGT DATA
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WATER PROTECTION ORDINANCE 5U5MITTAL
0-14 18 OF 23 EROSION CONTROL NARRATIVE
0-15.1 19 OF 25 IN1TiAt. PHASE - EiWVON CONTROL 4 SW PLAN
0-152 20 OF 23 FINAL PHASE - ER051014 CONTROL 4 SW PLAN
G -I6 21 OF 25 PRAINA&E MAPS
0-11 22 OF 23 5TOi HATER MANAGEMENT NARRATIVE
EIS and 5NM Man
M I NOR SITE PLAN AMENDMI NT
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SITE DATA:
OWNER/APPLIC.N,4T:
NOTCH'D LLG
40 STOCKTGH RIDGE PLACE
6REENV4000, VA 22943
THREE NOTCHT) CENTER
5374 THREE NOTCH'D ROAD
CROZET, VA 22932
ENGINEER: NP ENGINEERING
680 IVY FARM DRIVE
=ZTF1/("4j VA 224101
5531 -'1387
SOURCE OF SURVEY:
SOURCE OF TOPOGRAPHY:
DATE OF TOPOGRAPHY:
BENCHMARK:
COUNTY, STATE:
MAGISTERIAL DISTRICT:
TAX MAP .9RENGE:
ZONING:
SETBACK REQUIREMENTS:
lavalim
1;d Z-40d VA
Dominion Development Resources, LLC
Dominion Development Resources, LLC
AUGIJ'" T 2005 (Atesurred datum)
Top of D1 o Rte 240 (664.2-7%)
AL.BEMARLE COUNTY, VA
WHITE HALL
5 DEVELOPMENT
BUILDiN6 - 30' FROM PUBLIC' P-O.W.
PARKING - 10' FROM PUBLIC R.O.W.
COMMERCIAL
P05r, (COMMERCIAL CENTER/OFFIC -)
APPROVED
hV the Albemarle Cou*
Com lopment DepartmiBTA
Date
He
0-18 23 OF 25 5TORMHATER DETAILS
LAND USE SCHEDULE: EXISTING PROPOSED
BUILDING 408.63 5Q. FT. 15,4100.00 (15.14915)
PAVED (OR G- '►RAVEQ 288044 6 5 58,858 . T. 1(8)
655QQ _
041%OPEN SPACE . FT. SQ.
DEPARTMENT OF GOMMUN I TY DEVELOPMENT
PLANNER/ZONING
ENGINEER
B31dH►.iNto OFFICIAL
ARaHITEGTURAL REViEN BOARD
FIRE OFFICIAL
DATE
DATE
DATE
DATE
DATE
VIRGINIA DEPARTMENT OF TR+AN5PORTATI ON
DATE
PARKINS SCHEDULE: PROPOSED OFFICE/COMMERCIAL
Pr*0
EAST BLDG ODDS, not in office) = 8p00 gsf = 1500 SF 6LA
OMT BLDG (POSC not in off ice) = 5,500 gsf = 4,450 OF GLA
TOTAL 61-A OF IN PDSC, = 12,250 5F 6LA
o 5.5 SPAaCE511,000 GLA OF = 61 SPACES REQUIRED
OFFICE USE
EAST BLDG (2ND FLOOR) = 5p00 9F NET
WEST 8106 (2ND FLOM = 3,400 OF NET
MST BLDG (310 FLOOR) = O SF NET
TOTAL NET SF = 8,400 SF
o I SPACE51200 9F NET = 42 SPACES RE-GiUIRED
TOTAL PARK1146 REQUIRED FOR TH15 51ITE = 61 + 42 5PAGE5
LESS 8.5% REDIJGTION FOR SHARED PARKING 4 PEDE5TRIAr>rt OFFSET (4 SPACES%
TOTAL PARKINS 5PACE5 REQUIRED = 100 5PACE5 (5 HANDICAP ACCE5551"
TOTAL PARKINS SPACES PROVIDED = 95 SPACES + 5 HANDICAP SPACeS
(NOTE - porkina does not include 3 spaces designated v 0M VVWT).
RESERVOIR WATER51-11I=D: THE SITE LIES WITHIN THE BEAVER CREEK RESERVOIR WATERSHED
FLOODPLAIN: THE 51TE DOES NOT LIE WITHIN A FLOODPLAIN
MAXIMUM BUILDING HEIGHT: MAXIMUM BUILDING HEIGHT 15 40' (see sheet 2)
516NA6E: ALL 51&N5 MUST BE APPROVED BY ARB
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SOILS MAP
EROSION CONTROL NARRATIVE
PROJEGT DESCRIPTION:
This project consist of the construction of two Wild) ( oxlmately 24,140 9f) of office and commercial space,
and associated praMcirtrtgg areas. The pro act ,Copes trrcn1mr radlhg and instaildtlon of asphalt travel ways and
parking spaces, and u�Tltties. The dI= arm fbr ttTe projltt is ~%i" the entire site of 2.32 acres.
Eroslon control for " site re111 be managed using perimeter controls and the existing basin on the adjacent
parcel (north of site).
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ADJAGEW AREAS:
The site is bounded on the north by rural area, to the east by rural area, to the west by the 0mr1ottesville
Self Storage a Crozet facility and-to 0o south by 7hmee Notch.d Road. Existing surface dralhage is directed
nor'txn to an existing stream.
OFF -51TE ARE -46-
Mf -site areas to be disturbed are limited to the northern property line where the storm drainage outfall
outlets in lie existing erosion control basin. This area is deillrodated with a drainage easement.
SOILS:
According tome LWA 5GS soils mapping, the project site Iles In soils: - At-he
3183 - Hayesville Clay Loom
81$ - Thutrmont Loam
4lB - Urban Land
The soils are described as:
4D - Ashe loam, 15 to 25 percent slopes
Properties a qualities
Slope ft : 15 to 25 pdroent
Dept[ to restrictive feature: 20 to 40 Inches to Ilthic bedrock
DraitnaAe class: 5omexhat excessively drained
C.apnac of the most RMIting layer to transmitt neater (Ksat): very low to high (0.00 to 5.95 InA r)
Demeter table: i�io^e than 80 inohas
Fr,
crF flooding: Mme
FrvdOerrA
ttr � taw (about 3.2 Inches)
two I® in hes: I.OM
10 to A unties: I_odrn
lei to 24 tidies: Ean�oom
24 to '14 inches:
This soil Is moderatesiy deep, moderately steep, somewhat excessively drained soli. It 1s on narrow convex
ridgetops on points df ridges, and on side slopes.
Permeability of this soil Is moderately rapid. Depth to bedrock is approximately 30 Inches. Potential frost
action and i;W nk -swell potential Is ION.
The erosion hazard Is severe in areas H10iout adequate cover.
37B3 - Hayesville cla y loan, 2 to 'I percent slopes, severity eroded
Properties and qualifies
Slope, 2 to '1 pnsrcent
Depth to restrictive feature: More than 80 inches
Drainage class, Well drained.
Gap of the most limiting layer to transmit water (Ksat): Moderately high to high (0.51 to IA8 in/hr)
Depth tD Natter table: More than 80 Inches
Frequency of flooding: None
Fraeqdivemy of pondN: Name
Ava lcibla Hater capacity, High (about IOb Inches)
Typical profile
Q to I Indies: Clay loam
"i to 5B inches: Glory
58 to 6"1 Wztws: clay loan
67 to 83 Inches, Fine imdg loan
This soil Is deep, sloping and well drained. Soil Is on narrow convex ridge". Slopes are smooth and about
200 to 400 feet tong.
and avallable water Capacity of this 9011 is high. Depth to bedrock is approximately 80 inches.
5t action and 9hr'Ittk- 9rcell potential_ i9 Fftyh, limiting tine use of this soil as a bul site or roatlftll.
8115 - Thurmont loam, 2 to -1 percent slopes
Properties and qualities
Slope: 2 to 7 percent
Depth to restrictive feature: More than 80 inches
Drat doss: Well drained
Gaps i of the most Ilmtitmtt g layer to transmit water (Ksat): Moderately hlgh to high (057 to 1.48 In/hr)
,b
Depth to water table: ou-t 48 ids
Frequency of flooding: Now
Frequerx y of ponding2 NDm
Available water capacity: irloderate (gout 83 inches)
TiW pr"flle
fto 10 Inches: Loan
10 to 46 inches: Clay loam
46 to 56 Inches: Loam
56 to 74 inches, Gobbly sandy loam
This roll is deep, gently sloping and well drained. Soil is on elongated ridges.
Permeability Is moderate and available water capacity of this soil Is moderate. Depth to bedrock is
approximately 80 inches. Potential frost action and shrift-swell potential is low. This soil is a good source of
roadflll.
91 - Urban land
Properties and qualities
Slope: O to 25 percent
Depth to restrictive feature: 10 Inches to dense material
Capacity of the most limiting layer to transmit water (Ksat). Very low to high (0.00 to 13.04 in/hr)
Tgpiaal profile
0 to b IrncFves: Variable
6 to 14 inches.. Variable
Considered developed soil. Areas are used for parking lots, schools, shopping centers, etc.
CRITICAL EROSION AREAS:
There are no areas defined as critically erosive. However, care should be taken on a daily basis to maintain
the erosion control structures to event silt from leaving the construction site. Specifically, silt fence Is to be
constructed along the sides of the work zone to Intercept and detain sediment. AAconstrwtion entrance is
to be provided to prevent tracking of mud Into the public right- of-way by construction vehicles. leiish water
is to be trucked in or obtained from a metered AGSA water connection. -Wash water Is to be directed to silt
fence. Inlet protection is to be provided to prevent sedlMent from entering the storm drain system upon
cotistruation of the on -site sior'lh drdi n Inlet%.
CONSTRUCTION SEQUENCE:
Construction shall fallow the follow sqering to m i ntmize erosion .
1) Install silt fence (5f) along the all property lines.
2) Install Construction Entrance (CE) as hidlcated on the plans and any tree protection.
3) Veriffyy existin�gq EG basin Integrity and Install silt traps.
4) DerrOlsh existing Irffprovernents and relocate existlhg utilities as required.
5) Clear and grub, strip top soil and stockpile for respread. Haul unwIN:3le material off -site to an approved
disposal location.
6) Rough grade site, install new utilities (storm drain, sanitary, haul excess material off -site as necessary to
an approved disposal location.
1) instal'' 1 inlet protection (IF) around the proposed drop inlets.
8) Proof roll "rode In areas to receive asphalt pavement. Upon proof roll approval by geotechnical
engineer, Install aggregate base, prime coat and asphalt paving per phasing sequence.
4) install building strut_ lures and stripe paving.
10) Provide tam ovary seeding and other erosion control devices to minimize transport of sediment.
II) Prepare Ian ng areas.
12) Apply penman s"cilhg (PS), landscaping and mulch (MU) to all denuded areas as Indicated on the
plans as soon as .
13) T ovary sediment control structures are to remain in place and will be removed only when a
satactory stand of permanent grass is present. Upon ap oval, remove terworary erosion control
measures, remove unsuitable mtiaterial to an approved loon, and stabilize affected areas.
14) Convert E5C basin to a permanent storm water management basin.
15) Project closeout.
ER05ION AND SEDIMENT CONTROL MEASURES:
The measures noted below and on the accompa Ing drawings are to be constructed and maintained by
the contractor in accordance with " latest ad Ion of the Albemarle County Code and the Virginia Erosion
and Sedirnert ition Control Handbook, Third Edition, 1442. Symbols, details, and dimensions used are taken from
the handbook, as well as the Virginia Department of Transportation Road and Bridge Standards, Volume I, 2001
A. STRUCTURAL PP.ACTIGES:
I. Temporary con9trvatkM entrance (01!% 3,02: Temporary construction entrance shall be provided and
maTntsalned as shown on the plan sheet.
2. Silt Fence (5F), 3.05: Silt fence barriers shall be installed down slope of areas with minlmal grades to filter
EROSION t SEDIMENT CONTROL LEGEND
■
■
334 DUST GONTRDL DC
EG LEGEND
runoff from sheet flow as indicated on the plan sheet.
3. Storm Drain Inlet Protection (IP), 3.0-1: Storm drain inlet protection shall be provided for inlets as shown on
the plans.
4. Temporary Diversion Dike (D), 3.04, Temporary diversion dikes shall be provided as shown on the plans
or as needed to divert water to the sediment basin.
5. Rock Check Dams (CD), 320: Rock check dams are to be Installed in the diversion ditches as needed to
reduce velocity of concentrated flow and the potential of erosion.
6. Dust Control G), 3341: Provide dust control In areas subject to surface and air movement of duct where
on -site and off -site damage Is likely to occur If preventive measures are not taken.
-1. Temporary Sediment Basin shall be installed and maintained per VESG 3.14.
B. VBSETATIVE MEA5URE5s
I. Topsoiltng 4 Stock (TO), 3.30: Topsoil will be stripped from areas to be graded and stockpiled for
Idatteerr use. 5toG1CF.I es are to be stabil zed with termorary vegetation and have slit fence installed along
the lower perimeter. Stockpile locations to be approved N Albemarle County.
2. Temporary Seeding (TS), 3131: All denuded areas which will be left dormant for extended periods of time
shall be seeded HTth fast rminattng temporary vegetation hynedlately following grading. Seed
selection will be dependerion the time of year in accordance with the VESO.
3. Permanent Seeding (PS), 332: Permanent seeding shall be provided on site to provide stabilization for all
disturbed areas. Seeding rates are in pounds per acre. For high maintenance lawn areas apply 200 -250
pounds of Kentucky 31 fescue, 2 pounds of red top grass, and 20 pounds of seasonal nurse crop. The
on
seasal nur dates,
crop used is based on the following seeding date
a. From Februa ib throe April, use annual rye;
b. From M aj I thhrough August 15, use foxtatl millet;
c. From August Ib tffrougli October, use annual rye;
d. From November through Februaa^q 15, use winter rye;
All permanent seeding shall be fertifized, limed and mulched at the following rates: Fertilizer 10 -20 -10 at
a rate of 1000 pounds per acre: lime of agricultural grade limestone at a rate of 2 tans per acre: and
straw mulch at a rate of I . tans per acre. Before seedinngg, 4 inches of topsoil shall be spread In areas to
be seeded. Apply fertilizer and lime uniFormly and mix well-into top 4 inches of seed bed. Prepare soil for
permanent seeding by tillage of topsoil in place to loosen thoroughly aid breakup all clods to a depth
of b inches. Remove all stumps and roots, coarse vegetation, stones larger than I . Inches aid all
construction debris. Soil shall be worked by suitable agricultural equipmennt to a depth of not less than
4 Inches. Surface shall be uniform, smooth and drainers. A firm and compact seed bed is required.
4. Mulching (W), 335: All temporary and permanent seeding shall be straw mulched.
G. MINIMUM STANDARD5:
MS-1 Stablllizatlon of denuded areas:
Permanent or temporary soil stabilization shall beapplied to denuded areas with 7 days after final grade
is reached on any portion of the site. Temporary soil stabilization shall be applied withTn 7 days to
denuded areas tFuit may not be at final grade, but will remain dormant or undisturbed for longer than
30 days. Permanent stabilization shall be applied to areas that are to be left dormant for more than one
yo'.
15-2 9tabl111zation of soil stockpiles:
During construction of the project, soil stockpiles and borrow areas shall be stabilized or protected with
sediment trap try measures. The contractor is responsible for tempor protection and permanent
stabilization of all stockpiles on site as well as borrow areas and soil Inntentlonally transported from the
project site.
MS-3 Permanent Vegetative Covers
A permanent vegetative cover shall be established on denuded areas not otherwise permanently
stabilized. Permanent vegetation shall not be considered established until a ground cover Is achieved
that, in the opinion of the E*S Inspector, is uniform and mature enough to survive and inhibit erosion.
MS-4 Timing and stabilization of silt trapping measures,
Storm inlet protection, silt fencing, and other measures intended to trap sediment shall be constructed
as a first step in any land disturbing activities and shall be made functional before upslope land
disturbance takes prate.
MS-5 Stabilization of earthen structures,
Stabilization measured shall be applied to earthen structures such as dikes and diversions Immediately
after installation.
M5-6 Sediment basins and traps, Not used.
M5-7 Gut to Fill siopess
Cut to fill slopes shall be constructed in a manner that will minimize erosion. Slopes that are found to be
eroding excessively within one year of permanent stabilization shall be provided with additional slope
stabilizing measures until the problem Is corrected.
MS-8 Concentrated runoff down cut or fill slopes:
Concentrated runoff shall not flow down cut or fill slopes unless contained within an adequate
temporary or permanent channel, flume or slope gain structure.
M5-4 Water seepage from a slope face:
Whenever water seeps from a slope face, adequate drainage or other protection shall be provided.
EROS' ION CONTROL NOTES
I. The plan approving authority must be notified one week prior to the pre - construction
conference, one week prior to the commencmennt 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 VR625 -02 -00 Erosion and Sediment Control regulations.
3. All erosion and sediment control measures are to be placed prior to or as the ilid step
in clearing.
4. A copy of the approved erosion and sediment control plan shall be maintained at the site
at all Eimes.
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 at tafFflt
a supplementary erosion control plan to the owner for review and approval by than plilh
I proving authority.
6. The contractor 1s responsible for Installation of any additional erosion control measures
necessary to prevent erosion and sedimentation as determined by the plan approving
authority
'i. 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 dewaterinn�g operations, water will be pumipod Into an Quad filtering device.
9. The contractor sFidl i ect all erosion control Measures p=lcany d-id cifter each
runoff-producing rainfall event. Any necessary repairs or ckstawp to utiakYoM the
effectiveness df the erosion control devices Mall be mod9 i ro6didt61y.
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. f er-th fill shall
be Inert materials only, free of roots, stvffn *, wood, rte, and other debris.
12. Borrow or waste areas are to be reclaimed rr4thin 7 drays of coMptetion per Zoning
Ordinance section 5.1.28.
13. All inert materials shall be transported In compllance with section 13 -301 of the Code of Albemarle.
14. Ek5rrow, fill or waste activity involving Industrial -type power equipment shall be limited to the
hours of "i,00 an to 4 :00 pm.
15. Morrow, fill or waste activity shall be conducted in a safe manner that maintains lateral support, tt
or order to mtnlrtttze any hazard to persons, physical damage to adjacent land and Iftipr ,
and damage to a pubTtc street because & s des, sinidng or collapse.
16. The developer shall reserve the right to install, maintain, remove or convert to permanent
stamwater management facilities we applicable all erosion control measures required by this plan
regardless of the sale of any lot, unit or bending or other portion of the property.
17. Temporary stabilizatlon shall be temporary seeding and mulching. Seeding Is to be at
"15 ibs /acre, and in the mont}r of 5eptemtber to Februar4 to consist of a 50/50 mix of Acirual
Ryegross and C Winter nter Rye, or in March and April %consist of Annual Rye, or flay
through August to consist of German Millet. Straw mulch Is to be lled at 80 Ibs/100 sf.
18. Permanent stabilization shall be lime and fertilizer, permanent seeding, and mulch.
Agricultural grade limestone shall be applied at q0 Ibs/1000 sf, Incorporated into the top
4-b Inches of soil. Fertilizer shall be applied at 1000 Ibs /acre and consist of a 10 -20-16 nutrient
mix. Permanent seedinngg shall be I►ed at 180 lbs /acre and consist of 45% Kerlt;ucky 31 or
Tall Fescue and 0-5% Perrenial l egrass or Kentucky Bluegrass. Straw mulch is to be applied
at 80 Ibs /100 sf. Alternatives are sw�ject to approval by the County erosion control inspector.
101. Maintenance: All measures are to be inspected weekly and after each rainfall. Any damage
or clogging to structural measures Is to be repaired immediately. Silt traps are to be cleaned when
50% ofthe wet storage volume is filled with sediment. All seeded areas are to be reseeded when
necessaml 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 Imm edtatelIyy
20. All temporary erosion and sediment control measures are to be remdved with 30 days of final site
sterilization, when measures are no longer needed, subject to approval by the County erosion
control inspector.
MS-10 Storm Inlet Protection:
All storm Inlets that are operable during construction shall be protected so that sediment laden water
cannot enter the conveyance system without first being filtered or otherwise treated to remove
sediment.
MS-II Stabilization of outlets: Not used.
MS-12 Work In live watercourses: Not used.
MS-15 Crossing a live watercourse: Not used.
MS-14 Applicable Regulation:
All a . plic a federal, state and local regulations pertaining to working In or crossing live watercourses
shall be met.
MS-15 Stabilization of bed and banks: Not used.
MS-I6 Underground utilities:
Underground uElllty lines shall be Installed in accordance with the following standards, in addition to
other applicable criteria:
a. No more than 500 lineal feet of trench may be opened at one time;
b. Mere consistent with safety and space considerations, excavated material Is to be placed on
the uphill side of trenches, except for any diversion ditches;
c. Effluent from dewatertng operations shall be filtered or passed thrown an approved sediment
trapping device, or both, and discharged in a manner that does not adversely affect flohing
streams or offsite property,
d. Trench backflll material shall be properly compacted In order to minimize erosion and promote
stabilization;
e. Restobllization shall be accomplished in accordance with these regulations;
f. All applicable safety regulations shall be compiled with at all times.
MS-1-1 Construction access routes:
Where construction vehicle access routes Intersect paved or public roads, provisions shall be made
to minimize the transport of sediment by vehicular tracking onto the paved surface. Where sediment Is
transported onto a paved or public road, the road surface shall be cleaned thoroughly at tFte end of
each day. Sedimenp ll areaStreet washiaapplto tndlvial lopment lots as well as larger land - disturbing activities.
M5-IS Temporary E45 Control measure removal:
All temporary erosion and sediment control measures shall be removed within 30 days after final site
stabilization or after temporary measures are no longer needed, unless otherwise rthorized by the local
EtS authority. Trapped sediment and the dlsgir•bed roll areas rewThq front thee� ton. itkm Of ary
measures shall be permanently stabilized to prevent further erosion did semen
MS-14 Adequacy of receiving than nals:
Properties and waterwags downstream from the development site shall be protected from sediment
deposition, erosion and damage due to increases In volume, velocity and peak flow rates of storm
water runoff for the stated frequency storm of 24 -hour duration.
D. MAINTENANCE:
All erosion and sediment control structures and systems shall be maintained, inspected, and repaired as
needed to Insure continued performance of their Tntended function. All erosion and sediment control measures
shall be checked at the and of each day and after every rainfall event.
I. Damage to erosion control measures caused by construction traffic or other activity shall be
repaired before the end of each working day.
2. Maintain all seeded areas until a uniform stand is ac ted.
3. Provide for equipment washing as needed to prevent the transport of soil onto existing asphalt
roadways.
4. Both temporary and permanent roads and parking areas may require periodic top dressing with
new ravel.
5. Silt fence barriers will be checked daily for undermining or deterioration of the fabric. Sediment
shall be removed when the level reaches half way to the top of the barrier.
6. Sediment shall be removed from around the Inlet protectlon trap structure and restored to Its
original dimensions when the sediment has accumulated to one -half the design depth of the trap.
The trap structures shall be removed and the area stabilized when the remaining drainage area
has been properly stabilized.
-1. Temporary diversion dikes shall be Inspected regularly and repairs made IF needed.
8. Sediment accumulated within diversions shall be removed from the channel and repairs made
as necessary.
4. Sediment should be removed from rock check dams when It reaches one -half of the original
height of the measure. Regular Inspections should be made to Insure that the center of dam
Is lower than the edges. Erosion caused by high floras around the edges of the dam should be
corrected Immedlatelty.
IO.AII soil stabilization blankets and matting shall be Inspected after rainstorms to check for erosion
and undermining. If wastrout or breakc9e occurs, reinstall We material after repairing damage to
the slope or ditch.
K Nathaniel D. Perkins
GI=RT. NO. 032504
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2 5TORY
1 -1/2 5TORY CINDER BLOGK
{ FRAME l FF 665.50'
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1
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or 5creen
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BEA VER GREEK HILL CORP.
GURRBNT ZONING: R14
CURRENT U5� V146ANTIMPE /BL ORBD
146RS 4GE //, /q6 146.
FUTURE CONNECTION
TO ADJACENT PROPERTY
Shared Driveway W adjacent parcel subject to
joint access agreement as recorded in D13 647/P6 609
(copy was submitted with plan).
OF OWNSWANO
P—OLT rem
1 Pi
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55051 P . •
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501L EROSION AND SEDIMENTATION GONTROL 5* rBMOLS
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PS = PERMANENT SEED I NO
DG = DUST CONTROL
IF = INLET PROTEGTION
OF = OUTLET PROTEGTION
5F = SILT FENGE
58 = TEMP. SEDIMENT BASIN
GRAPHIC SCALE 1 " =30'
0 30 60 90
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T / ST-DEVEL ^PED) //) — i.- \ GRAPNC scam WS1 REDUCTION
60' 0 A0'
DRA I NAGE MAP
(Pre - ff Post- Development)
5rMHNA7ER jPETFNTION
FAG14ITY ON 774F 56.43/7
TO BE GSFD FOR THIS ,°RO..ECT
FOR Ei?z*Z/ON COWRM AND
5rORMNA72=_R DETENT/ON
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1 , - ., x
'Al 24 Rod
u IO x 20'
` screen
Ybod Pr
to txalnQld
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IF THIS DftACALE IS A REDUCTION
XT
GRAPHrO SCALE MUST BE USED
`.... so' a eo
DRAINAGE MAP
(from adjacent site)
TM 55 - 67
BE4 VER GREFK N1U CORP.
GENT ZON /NG: RA
GUMENT 1l5F: VA6ANr1VH7FVa0)1fP
ACREAGE 111g6 AC,
KnURE TION
To ADJAceNT PROPERTY
Shared Drava" W adjacent parcel sub}� t to
\� 'pkt access a�ika`nit dwld in D 8b4I Pty br
LPN P
Post 3 ccble
D - 6221 in RAV
=0.13 Ac. 0. cfs\
DRAINA6E MAP
(Post - Development conditions)
5TORMWATER MANAGEMENT NOTE5
I. All dams and constructed fill to be within c15% of maximum dry densitty� and 2% of optimum
moisture content. All fill material to be approved by a goetechnicafengineer. A geotechnical
engineer is to be present during construction of dams.
2. Pipe and riser joints are to be watertight within stormwater managerr►ent facilities.
3. Por terr�orary sediment traps or basins which are to be converted to srmcment stormwater
management facilities; conversion is not to take place until the site Is stabilized, and permission
has been obtained from the GoMN 0 orlon control Inspector.
K WW=lel D. Per"
GMT. W. 0321304
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SEDIMENT BASIN SCH-1117tMATIC
FLEVATTONS
CREST OF EMERGENCY
SPILLWAY
DESIGN HIGH WATER
(25-YR. STORM ELEV.
=650.12)
MIN. 1.0'
RISER CREST
67 C:(./ ..... ...... DEVICE
DRY RAGE % ........... DEWATERfNG
ELEV.-649.94 -
ELEV. = 648,37
........ ....... SEE DETAIL
67 C.Y./ AC. .. .......
WET "STORAGE .......... ....... •..... .... NEXT PACE
ELEV.=648.37
SEDIMENT CLEANOUT POINT = 647.33
(` WET " STORAGE REDUCED
TO 34 C.Y./ ACRE)
DESIGN ELEVATIONS WITH
EMERGENCY SPILLWAY
SOURCE: VA. DSWC PATE. 3.14-2
RISER DETAIL
36' DIA ER
CUP RISER
W /I U
INS `r
S &WITH
ARE
J'WEIR ,I
V2'DIAMETER
THREADED a+w rem
':;'rFFI R02S
CREST -649-91
INV.- 649.00
3'WEIR W0_JV6_'
CIRCUMFERENCE
C,6'P DIAMETER
ER
XWEIR IS MEASURED BY THE CIRCUMFERENCE
OF THE 36YYP RISER. SCALE 20:1
]KISER PIPE BASE CONDITIONS
IOLIER CLGM- R.1 �l
S'DE ELEVATION
GROUT OUTLET PIPE TO
7a
ELEVATION 645-50 IN
CALCULATIONS
ORDER TO MAINTAIN
T
18:' min.
-Flow
POSITIVE DRAINAGE.
_::D
\-6" MIN. ZIA AGGk_GArE BASE
STRAPPING
PROFIL
611
S = DRY STORAGE AREA = 12.825 CF
CHANNEL
PLAN VIEW
0 = S/21,600 SEC (FOR 6 HOUR
TYPICAL CONCRETE BASE
DRAWDOWN)
SOURCE: VA. DSWC
SEDIMENT BASIN SCH-1117tMATIC
FLEVATTONS
CREST OF EMERGENCY
SPILLWAY
DESIGN HIGH WATER
(25-YR. STORM ELEV.
=650.12)
MIN. 1.0'
RISER CREST
67 C:(./ ..... ...... DEVICE
DRY RAGE % ........... DEWATERfNG
ELEV.-649.94 -
ELEV. = 648,37
........ ....... SEE DETAIL
67 C.Y./ AC. .. .......
WET "STORAGE .......... ....... •..... .... NEXT PACE
ELEV.=648.37
SEDIMENT CLEANOUT POINT = 647.33
(` WET " STORAGE REDUCED
TO 34 C.Y./ ACRE)
DESIGN ELEVATIONS WITH
EMERGENCY SPILLWAY
SOURCE: VA. DSWC PATE. 3.14-2
RISER DETAIL
36' DIA ER
CUP RISER
W /I U
INS `r
S &WITH
ARE
J'WEIR ,I
V2'DIAMETER
THREADED a+w rem
':;'rFFI R02S
CREST -649-91
INV.- 649.00
3'WEIR W0_JV6_'
CIRCUMFERENCE
C,6'P DIAMETER
ER
XWEIR IS MEASURED BY THE CIRCUMFERENCE
OF THE 36YYP RISER. SCALE 20:1
1/4" STEEL PLATE
BOLTED TO EW- I
ME--AL GRATING (GALV. STEEL)
WELDED TO 1/4" STEEL PLATE
(1"x1" MAX OPENING)
li
VDOT STD.
EW-1
ANCHOR cv
4" PIPE TO SLAB
X_x
A
2'-2"
12"
6" CONCRETE
APRON
SECTION
BMP EXTENDED DRAWDOWN DEVICE
1992 3.38
Irf,NCING AND ARMORING
ti
le
SHOW FENCE
Po
WAflO FENCE
FENCE
CORRECT METHODS OF TREE FENCING
Z
CORRECT TRUNK ARMORING
TRIANGULAR BOARD FENCE
Source: Va. DSWC
111-401
1/" STEEL PLATE
METAL GRATING (GALV. STEEL) ._3 24" BOLTED TO EW-1
WELDED TO 11" STEEL PLATE
(1"x1 " MAX OPENING) VDOT STD. EW- 1
X X X X
4" BMP "\�'\/x x x x X''
ORIFACE xxxz\/� / V
N
\ /� /� / \Y 0
Sp
x
X'/ x
X x x
0
\ \ \''\ 0
L_.-..--_-.----.---- .- .--- .....-- ...- .- .- ..-- ._ --.- - - _.. .- - - -_-..-.-,....--.. -,-
ELEVATION
Plate 3.38-2 '
1992 3.07
GRAVEL CURB INLET SEDLUENT
FILTER
RIF EA IRE 1E1.
IIIICIEO WAiEH
EEo.E`11
-NOWLTE GOITER
UP,u IrkU
SPLGIFIQ A�APPLICATION
T141S METHOD OF INLET PROTECTION IS APPfICABLE AT CURB INLETS
WHERE PONDING IN FRONT OF HE STRUCTURE IS NOT LIKELY TO CAUSE
UNCONVERIENCE OR DAMAGE TO ADJACEM STRUCTURES AND UNPROTECTED,
AREAS.
GICAVEL SHALL BE VDOT d3. #357 OR 5 COARSE AGGREGATE.
Source: Va. DSWC Plate 107-6
sm
1992 3,02
STONE CONSTRUCTION
ENTRANCLE
1A C-1
IOLIER CLGM- R.1 �l
S'DE ELEVATION
RECOMMENDED DEWATERING,
7a
T
CALCULATIONS
SYSTEM FOR SEDIMENT BASINS
T
18:' min.
-Flow
PROVIDE ADEQUATE
_::D
\-6" MIN. ZIA AGGk_GArE BASE
STRAPPING
PROFIL
POLYETHYLENE CAP
S = DRY STORAGE AREA = 12.825 CF
CHANNEL
PLAN VIEW
0 = S/21,600 SEC (FOR 6 HOUR
DRAWDOWN)
DEPTH
0 = 0.59 CFS
VARIES AS
PERFORATED REQUIRED
ERFORATED
PEXISTING
NVEMENd
POLYETHYLENE FORD - DRY
P OLY E THYL ENE
7"FIERNCO-STYLE
2% 12' IMIN.*
z: D�AINAGE TUBING. STORAGE
, A I NAGE TUBING, G
H 649.94 648.37= 1.57/2 0.785
7 0 IAMETER
(CRIEERT OF�) ( SWKRAGE
T
OF INGRESS AND EGRESS TRAPPING DEVICE
SECTION A-A
0 0.59
TACK WELD I WET
A 0.139
(64.32xH)"(Q. 6) (64.3?( .785) ho. 6)
CO STYL STORAGE
A
COUPLING
TO s,EQIMENT
D 2X 0.42 = 5-
DIEWATERING ORIFICE,
"
STEEL STUB 1-FOOT MINIMUM.
To WELL
5' DIAMETER ORIFICE
CHANNEL
CORRUGATED METAL RISER INV = 648.37
tap of inchniust be installed witlia ininhiumi Ift'ichballcock
NOT E..REMOVE TUBING AND CAP TEMPORARY
-6iWATERING ORIFICE . ICE = 5"
ORIFICE AT END OF CONSTRUCTION. CLEAN
4;011S'tallt pressure; Wash water tnustbe carliedirway fl. 01,11 the ellfi-mlee to air
OUT SEDIMENT FROM POND FOR PERMANENT
DIAMETER OF FLEXIBLE TUBING =7"
USE AS A STORM WATER MANAGEMENT FACILITY.
elitelill. stolid dtairls, ditche's of watercollises.
DRAINAGE TURING SHALL COMPLY WITH ASTM F667
PAVED WASH RACK
AND AASHTO M294
SECTION A-A
SOURCE: VA. DSWC PLATE. 3.14-15
1/4" STEEL PLATE
BOLTED TO EW- I
ME--AL GRATING (GALV. STEEL)
WELDED TO 1/4" STEEL PLATE
(1"x1" MAX OPENING)
li
VDOT STD.
EW-1
ANCHOR cv
4" PIPE TO SLAB
X_x
A
2'-2"
12"
6" CONCRETE
APRON
SECTION
BMP EXTENDED DRAWDOWN DEVICE
1992 3.38
Irf,NCING AND ARMORING
ti
le
SHOW FENCE
Po
WAflO FENCE
FENCE
CORRECT METHODS OF TREE FENCING
Z
CORRECT TRUNK ARMORING
TRIANGULAR BOARD FENCE
Source: Va. DSWC
111-401
1/" STEEL PLATE
METAL GRATING (GALV. STEEL) ._3 24" BOLTED TO EW-1
WELDED TO 11" STEEL PLATE
(1"x1 " MAX OPENING) VDOT STD. EW- 1
X X X X
4" BMP "\�'\/x x x x X''
ORIFACE xxxz\/� / V
N
\ /� /� / \Y 0
Sp
x
X'/ x
X x x
0
\ \ \''\ 0
L_.-..--_-.----.---- .- .--- .....-- ...- .- .- ..-- ._ --.- - - _.. .- - - -_-..-.-,....--.. -,-
ELEVATION
Plate 3.38-2 '
1992 3.07
GRAVEL CURB INLET SEDLUENT
FILTER
RIF EA IRE 1E1.
IIIICIEO WAiEH
EEo.E`11
-NOWLTE GOITER
UP,u IrkU
SPLGIFIQ A�APPLICATION
T141S METHOD OF INLET PROTECTION IS APPfICABLE AT CURB INLETS
WHERE PONDING IN FRONT OF HE STRUCTURE IS NOT LIKELY TO CAUSE
UNCONVERIENCE OR DAMAGE TO ADJACEM STRUCTURES AND UNPROTECTED,
AREAS.
GICAVEL SHALL BE VDOT d3. #357 OR 5 COARSE AGGREGATE.
Source: Va. DSWC Plate 107-6
sm
1992 3,02
STONE CONSTRUCTION
ENTRANCLE
1A C-1
IOLIER CLGM- R.1 �l
S'DE ELEVATION
INNICNALLL� ... N
7a
T
k-F rjt\I(3
27
CK30115
T
18:' min.
-Flow
3 1 do ao
_::D
\-6" MIN. ZIA AGGk_GArE BASE
Cl.Tl 0
1-FERn
PROFIL
AREA WIT I
E-E AGGKGATE T. S-E
- T-I.. rl-C
CHANNEL
PLAN VIEW
I
ElTEND 1UU_ 1
.1 .- ANu EIREW
"-.N PLAN VIEW
F� I SECTION A-A
L
SECTION B-B
Source: Adapted from 1983 Maryland Standards for Soil Plat. 3.02-1
Control Erosion and Sediment and Va. DSWC
111_9
1992 3,18
F-PI-PE -OUTLET CONDITIONS
A
A
C041STRUCTION
J_
ACCESS /-3" 'SM-2A ASPHALT 70P
COURSE
Compacted Soil
k-F rjt\I(3
27
CK30115
T
18:' min.
-Flow
3 1 do ao
_::D
\-6" MIN. ZIA AGGk_GArE BASE
PIPE OUTLC'f to FLAT
PROFIL
AREA WIT I
NO DEFINED
CHANNEL
PLAN VIEW
STONE
CONSfRUCTION ASPHALT PAVER
ASPHALT
ACCESS
F(Z) IF WASH
PEXISTING
NVEMENd
2% 12' IMIN.*
i-POSITNE DRAINAGE
+M10ST EXTEND FULL WIDTH Le tQ GEOWENT
T
OF INGRESS AND EGRESS TRAPPING DEVICE
SECTION A-A
`OPERATION
A
PLAN
A
TO s,EQIMENT
"
PIPE OUTLET
To WELL
DEFINED
PLAN VIEW
CHANNEL
tap of inchniust be installed witlia ininhiumi Ift'ichballcock
Arvitopff Valve Si1pp15*1g a Wish Irose witha diameter ofl.5 hichts for adtqxvalte
4;011S'tallt pressure; Wash water tnustbe carliedirway fl. 01,11 the ellfi-mlee to air
approved ,seffffikgarea to rerriove:,se(fiinerlt. AtIsectillierIshall be pfevelited from
elitelill. stolid dtairls, ditche's of watercollises.
PAVED WASH RACK
SECTION A-A
J
Fay KEr Ire DED FOR
C.-HE FEFFNcTFR
NO I I - LON= MAY - RIFRAP. OMMC .-N
BASKET. OR C..`NCB,.
'L. 3 THE LENGTH DY THE FMRAP APRON AS CALRE-Nij
uaING PLATES 11- AND 316-
I.5 n.. ME -1.DM CNC E.-Er. OCT NET
S MAN 6 11E.-
Source: Va. DSWC Plate 3,18-1
fil - 157
3.05
CONS'TRUC'TION OF A SILT FENCE
(WITHOUT VRE SUPPORT)
1. SET THE STAKES. 2. EXCAVATE A 4_X 4• TRENCH
UP'SLOPF, ALONG THE LINE OF
STAKES
FLOW
3. STAPLE FILTER MATERIAL 4 BACKFILL AND COMPACT
TO STAKES AND EXTEND THE EXCAVATED SOIL.
IT INTO THE IKENCH.
W!
ISIIEI:r FLOW INSTALLATION
(PERSPECTIVE VIEW)
A A
POINTS A SHOULD HE HIGHER MAN POINT' 13,
DRAINAGEWAY INSTALLATION
(FRONT EI,F.VATIONI)
Source: Adapted from IjIS14IIg[iQn of Straw and Fabric Filter
Barriers for Sediment Control Shemoud and Wy..t Plate 3.05-2
Ill-25
STONE M0.
DATE
C041STRUCTION
L1130A5
ACCESS /-3" 'SM-2A ASPHALT 70P
COURSE
Compacted Soil
k-F rjt\I(3
27
CK30115
T
18:' min.
-Flow
17Alr:
_::D
\-6" MIN. ZIA AGGk_GArE BASE
I 11IR11 1111im III pill I III-al 111FRal I&II
PROFIL
VRAV045
G -18
FLar
70'
2 3O 23
STONE
CONSfRUCTION ASPHALT PAVER
ASPHALT
ACCESS
F(Z) IF WASH
PEXISTING
NVEMENd
2% 12' IMIN.*
i-POSITNE DRAINAGE
+M10ST EXTEND FULL WIDTH Le tQ GEOWENT
OF INGRESS AND EGRESS TRAPPING DEVICE
`OPERATION
PLAN
TO s,EQIMENT
"
.FILTER CLOTH � 7
SECTION A -A.
tap of inchniust be installed witlia ininhiumi Ift'ichballcock
Arvitopff Valve Si1pp15*1g a Wish Irose witha diameter ofl.5 hichts for adtqxvalte
4;011S'tallt pressure; Wash water tnustbe carliedirway fl. 01,11 the ellfi-mlee to air
approved ,seffffikgarea to rerriove:,se(fiinerlt. AtIsectillierIshall be pfevelited from
elitelill. stolid dtairls, ditche's of watercollises.
PAVED WASH RACK
No SCALE
J
ry
LQ
D,
DATE
TEMPORARY DIVERSION DIKE
L1130A5
DRAMN BY
Compacted Soil
NP
CK30115
T
18:' min.
-Flow
17Alr:
FILE
SM0109E
I 11IR11 1111im III pill I III-al 111FRal I&II
SO-1ALE 111= 301
VRAV045
G -18
FLar
4.5' min.
F
2 3O 23
Source: Va. DSWC Plate 3.09-1
ry
LQ
D,
Z
mom> < <
DL
z
JZ_
LW
nn
L
LU
X
DE9t6NED BY
DATE
NP
L1130A5
DRAMN BY
VATE
NP
CK30115
C4EVZW BY
17Alr:
FILE
SM0109E
EVIT
SO-1ALE 111= 301
VRAV045
G -18
FLar
F"O.MT -
2 3O 23
5HMT NO.
O
Z
mom> < <
DL
z
JZ_
LW
nn
L
LU
X
DE9t6NED BY
DATE
NP
L1130A5
DRAMN BY
VATE
NP
CK30115
C4EVZW BY
17Alr:
FILE
SM0109E
EVIT
SO-1ALE 111= 301
VRAV045
G -18
FLar
F"O.MT -
2 3O 23
5HMT NO.