HomeMy WebLinkAboutWPO201600027 Plan - Stormwater 2016-05-26V5MP PLAN FOR
WILDROCK
00600-00-00-02880
WPO 201 6-00027
WHITE HALL DISTRICT, ALE3EMARLE COUNTY, VIRGINIA
The
stormwater management strategy
for this site is
governed by the VRRM Re -Development spreadsheet.
Due
to the removal of existing gravel
impervious area, the
water quality of the site runoff is not required to
be
improved. To treat runoff quantity,
two strategies
have
been employed that reduce the impact to the site
and
maintain lower development costs.
Site runoff is
fairly
low due to the A and B soil groups that make up
this
area. This low runoff can be effectively managed
with
grass ditches and swales.
The energy balance equation was applied to the concentrated runoff that exits the site toward the concrete
ditch to the east of the property. The drainage area that outlets at this point was reduced for compliance
with the energy balance equation without the need for detention methods.
The rest of the disturbed area is routed through culverts and grass channels to a permanent level spreader
as depicted on Sheet C4. The total runoff directed to this has a 10 -Year flow rate of 8.52 cfs, so a timber
level spreader will safely divert the concentrated runoff to sheet flow where it will eventually run to the
existing stream that runs under Route 810. The level spreader is designed according to the standards set
forth in the Virginia Erosion and Sediment Control Handbook Section 3.21 and was placed at an existing flat
location for best performance. The energy balance equation is not required for sheet flow and was not applied
to this runoff. The level spreader, a velocity -attenuating permanent site measure, must be appropriately
maintained. In design and performance, the level spreader supports a strategy discussed and accepted by
Engineering. It is not a (Part IIB) BMP but is accessory to SWM compliance strategy. Not strictly a Part IIB
best management practice SWM facility, the level spreader does not require a SWM bond, or stormwater
maintenance agreement. Overall site design and strategy support this approach.
Source: Albemarle County GIS
SHEETINDEX
SHEET
C I
-COVER 5HEET
5HEET
C2
- ERO510N
� SEDIMENT CONTROL NARRATIVE
5HEET
C3-
EXI5TING,
CONDITION5
SHEET
C4
- EROSION
� 5EDIMENT CONTROL PLAN
SHEET
C5
- EROSION
DETAILS
1. Prior to any construction within any existing public right-of-way, including connection to any existing road, a permit shall be obtained from the
Virginia Department of Transportation (VDOT). This plan as drawn may not accurately reflect the requirements of the permit. Where any
discrepancies occur the requirements of the permit shall govern.
2. All materials and construction methods shall conform to current specifications and standards of VDOT unless otherwise noted.
3. Erosion and siltation control measures shall be provided in accordance with the approved erosion control plan and shall be installed prior to any
clearing, grading or other construction.
4. All slopes and disturbed areas are to be fertilized, seeded and mulched.
5. The maximum allowable slope is 2:1 (horizontal: vertical). Where reasonably obtainable, lesser slopes of 3:1 or better are to be achieved.
6. Paved, rip -rap or stabilization mat lined ditch may be required when in the opinion of the County Engineer, or designee, it is deemed necessary
in order to stabilize a drainage channel.
7. All traffic control signs shall conform with the Virginia Manual for Uniform Traffic Control Devices.
8. Unless otherwise noted all concrete pipe shall be reinforced concrete pipe - Class III.
9. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926).
7, MAT 11111]&I $410111TJA�Wff T -61v
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 that maintains lateral support, or order to minimize any hazard to persons,
physical damage to adjacent land and improvements, and damage to any public street because 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 50/50 mix of Annual Ryegrass and Cereal Winter Rye, or in March and April to consist of Annual Rye, or May through
August to consist of German Millet. Straw mulch is to be applied at 80lbs/100sf. 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 top 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% Kentucky 31 or Tall Fescue and 0-5% 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 repaired
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)
Source of 4' Topography: Albemarle County GIS
Source of Additional Boundary/ Survey and Field Run 2' Contours: Residential Surveying Services Charlottesville, VA
APPROVED
by the Albemarle County
Communityvn1feartment
Date t,' File r
0!2
v JU IN SHIMP Y
Lic. 4 183
O
GENERAL NOTES, EROSION & SEDIMENT CONTROL NOTES, AND SEQUENCE OF CONSTRUCTION
PROJECT DESCRIPTION
THIS SITE IS AN UNDEVELOPED FARM OFF VA -810 IN ALBEMARLE COUNTY BEING CONVERTED INTO A
CHILDREN'S DAY CAMP.
THE TOTAL AREA OF DISTURBANCE IS 5.80 ACRES.
THE PROJECT INVOLVES THE FOLLOWING WORK ACTIVITIES:
1. THE CONTRACTOR SHALL OBTAIN ALL LOCAL AND STATE EROSION AND SEDIMENT PERMITTING
REQUIREMENTS AND MAINTAIN ALL EROSION AND SEDIMENT CONTROLS IN ACCORDANCE WITH THE
PERMIT REQUIREMENTS.
2. INSTALLATION OF PERMANENT EROSION AND SEDIMENT CONTROL MEASURES AS SHOWN ON THE
PLAN AND DETAILS.
3. GRADING AND PLACEMENT OF FILL SHALL BE IN GENERAL ACCORDANCE WITH THE PLAN.
4. ESTABLISHMENT OF PERMANENT STABILIZATION OF ALL DISTURBED AREAS.
ADJACENT PROPERTIES
THIS PROPERTY IS BORDERED TO THE NORTH AND WEST BY THE PATRICIA ANN BYROM FOREST
PRESERVE AND TO THE SOUTH AND EAST BY UNDEVELOPED LAND.
CRITICAL AREAS
THERE ARE NO CRITICAL AEAS OR STEEP SLOPES WITHIN THE LIMITS OF DISTURBANCE.
EROSION & SEDIMENT CONTROLS
1. CONSTRUCTION ENTRANCE: INSTALL AND MAINTAIN A CONSTRUCTION ENTRANCE, AS NECESSARY,
THAT MEETS THE REQUIREMENTS OF STD. AND SPEC. 3.02 AND CONFORMS WITH THE
REQUIREMENTS OF THE EROSION & SEDIMENT CONTROL PLAN.
2. SILT FENCE: INSTALL AND MAINTAIN SILT FENCE THAT MEETS THE REQUIREMENTS OF STD. AND
SPEC. 3.05. THIS SILT FENCE SHALL BE INSTALLED AS SHOWN ON THE EROSION & SEDIMENT
CONTROL PLAN AND ACCOMPANYING DETAILS FOR THE PURPOSE OF INTERCEPTING SILT -LADEN
RUNOFF BEFORE IT IS DISCHARGED FROM THE SITE. THE SILT FENCE SHALL BE INSPECTED AND
MAINTAINED TO ENSURE CONTINUED PERFORMANCE.
3. TEMPORARY CLEANWATER DIVERSION: A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP
OR BASE OF A SLOPING DISTURBED AREA WHICH DIVERTS OFF-SITE RUNOFF AWAY FROM,
UNPROTECTED SLOPES AND TO A STABILIZED OUTLET. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS.
STD. AND SPEC. 3.09. THE WATER WILL FLOW THROUGH A CWD DESIGNED TO VDOT LD -268
STANDARDS. THIS CULVERT WILL BE LINED WITH EC -2 MATTING.
4. TEMPORARY SEDIMENT TRAP: A SMALL PONDING AREA, FORMED BY CONSTRUCTING AN EARTHEN
EMBANKMENT WITH A STONE OUTLET ACROSS A DRAINAGE SWALE, TO DETAIN SEDIMENT -LADEN
RUNOFF FROM SMALL DISTURBED AREAS FOR ENOUGH TIME TO ALLOW MOST OF THE SUSPENDED
SOLIDS TO SETTLE OUT. MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. STD. AND SPEC. 3.13. TO BE
CONVERTED INTO A PERMANENT DETENTION POND AT THE END OF CONSTRUCTION AS DETAILED.
5. TEMPORARY DIVERSION DIKE: A RIDGE OF COMPACTED SOIL CONSTRUCTED AT
THE TOP OR BASE OF A SLOPING DISTURBED AREA WHICH DIVERTS
SEDIMENT -LADEN RUNOFF TO A SEDIMENT TRAPPING STRUCTURE. MAXIMUM
EFFECTIVE LIFE IS 18 MONTHS. STD. AND SPEC. 3.09. THE CLEANWATER DIVERSIONS
WILL BE MADE STABLE BY THE USE OF VDOT LD -268 DESIGN STANDARDS.
6. TEMPORARY SEEDING: TEMPORARY SEEDING SHALL BE APPLIED TO ALL DENUDED AREAS WITHIN
SEVEN (7) DAYS TO DENUDED AREAS THAT MAY OR MAY NOT BE AT FINAL GRADE BUT WILL
REMAIN DORMANT (UNDISTURBED) FOR LONGER THAN 30 DAYS. TEMPORARY SEEDING SHALL BE
APPLIED IN CONFORMANCE WITH STD. AND SPEC. 3.31.
7. PERMANENT SEEDING: PERMANENT SEEDING SHALL BE APPLIED TO AREAS DELINEATED ON THESE
PLANS WITHIN SEVEN (7) DAYS AFTER FINAL GRADE IS REACHED ON ANY PORTION OF THE SITE.
PERMANENT SEEDING STABILIZES DISTURBED AREAS AND ENHANCES THE BEAUTY OF THE SITE.
8. MULCHING: APPLICATION OF PLANT RESIDUES OR OTHER SUITABLE MATERIALS TO THE SOIL
SURFACE TO PREVENT EROSION AND FOSTER THE GROWTH OF VEGETATION. ORGANIC MULCHES
(STRAW) HAVE BEEN FOUND TO BE THE MOST EFFECTIVE.
9. DUST CONTROL: CONDUCT DUST CONTROL OPERATIONS NECESSARY TO MET THE REQUIREMENTS
OF STD. & SPEC. 3.39 AS REQUIRED TO CONTROL SURFACE AND AIRBORNE MOVEMENT OF DUST.
10. INLET PROTECTION: INLET PROTECTION MEASURES AROUNF THE NEW INLETS SHALL BE PROVIDED
IN ACCORDANCE WITH STD. AND SPEC. 3.07. SILT FENCE, STRAW BALES OR TEMPORARY STONE
APPLICATIONS SHALL BE APPLIED AS APPROPRIATE FOR CURRENT GRADE CONDITIONS.
11. OUTLET PROTECTION: RIP -RAP SHALL BE PROVIDED AT THE OUTFALL OF CONVEYANCE
CHANNELS, CULVERTS, AND STORM SEWERS IN CONFORMANCE WITH STD. AND SPEC. 3.18.
OUTLET PROTECTION SHALL BE INSTALLED WITH ACCOMPANYING STORM SEWERS AND SHALL BE
INSPECTED AFTER EACH RAINFALL EVENT AND REPAIRED IF NECESSARY. ANT SEDIMENT BUILD
UP SHALL BE REMOVED.
MANAGEMENT STRATEGY AND SEQUENCE OF CONSTRUCTION
THE FOLLOWING ARE THE PROPOSED MANAGEMENT STRATEGIES AND DETAILED
SEQUENCE OF CONSTRUCTION:
PHASE 1
1. INSTALL CONSTRUCTION ENTRANCE.
2. INSTALL SEDIMENT TRAP AS SHOWN.
3. CONSTRUCT DIVERSIONS AND SILT FENCE.
4. CONTACT THE ENGINEER AND ALBEMARLE COUNTY FOR INSPECTION AND
APPROVAL OF ALL E&S CONTROL MEASURES.
PHASE 2
1. UPON APPROVAL OF E&S CONTROL MEASURES, BEGIN CLEARING AND
GRADING OF THE SITE.
2. DEMO EXISTING IMPERVIOUS AREAS AND BRING TO TEMPORARY STABILIZATION.
3. BEGIN CONSTRUCTION OF STRUCTURES AS SHOWN ON THE SITE DEVELOPMENT
PLAN.
4. GRADE THE DITCHES FIRST AND INSTALL PROPER MATTING AS SHOWN.
5. INSTALL LEVEL SPREADER.
6. INSTALL INLET AND OUTLET PROTECTION ON NEW CULVERTS WHEN INSTALLED.
7. MAINTAIN ALL E&S CONTROL MEASURES.
PHASE 3
1. STABILIZE THE DITCHES AND THE SITE.
2. ALL PERIMETER STABILIZATION MEASURES SHALL REMAIN IN PLACE UNTIL THE
SITE IS DEEMED STABILIZED BY THE PLAN REVIEWING AUTHORITY.
3. REMOVE AND DEWATER SEDIMENT TRAP.
4. ESTABLISH AND MAINTAIN PERMANENT STABILIZATION, INCLUDING VEGETATION
OF ALL SLOPES AND GRASSED AREAS. REMOVE INLET PROTECTION, SILT
FENCE, AND DIVERSIONS,
CONSTRUCTION MAINTENANCE
THE FOLLOWING CONSTRUCTION MAINTENANCE PRACTICES SHALL BE FOLLOWED
AT THE SITE.
1. ALL E&S CONTROL MEASURES WILL BE CHECKED DAILY AND AFTER EACH
SIGNIFICANT RAIN EVENT. ALL DEFICIENCIES IDENTIFIED DURING THESE
INSPECTIONS SHALL BE CORRECTED AS SOON AS PRACTICABLE.
2. THE SILT FENCE BARRIER SHALL BE REGULARLY CHECKED FOR UNDERMINING,
DETERIORATION OR SIGNIFICANT EROSION. SEDIMENT SHALL BE REMOVED
AFTER EACH STORM EVENT AND WHEN THE LEVEL OF SEDIMENT DEPOSITION
REACHES HALF THE HEIGHT OF THE CONTROL.
3. THE CONTRACTOR IS RESPONSIBLE FOR ADHERING TO ALL MAINTENANCE
REQUIREMENTS SET FORTH IN THE CURRENT EDITION OF THE VIRGINIA
SEDIMENT AND EROSION CONTROL MANUAL, OTHER APPLICABLE
COMMONWEALTH OF VIRGINIA REGULATIONS AND THE PROJECT
SPECIFICATIONS.
4. ALL SEEDED AREAS WILL BE REGULARLY CHECKED TO ENSURE THAT A GOOD
STAND OF GRASS IS MAINTAINED.
5. AREAS WITH RIP -RAP SHOULD BE REGULARLY INSPECTED TO DETERMINE IF
HIGH FLOWS HAVE DAMAGED THESE CONTROLS OR CAUSED EXCESSIVE
SEDIMENT DEPOSITION, ALL AREAS SHALL BE MAINTAINED IN ACCORDANCE
WITH THE REQUIREMENTS OF THIS E&S CONTROL PLAN,
ENVIRONMENTAL CONTROLS
1. CONTRACTOR SHALL PROVIDE AND MAINTAIN ALL ENVIRONMENTAL CONTROL
MEASURES SO AS TO COMPLY WITH LOCAL ORDINANCES, STATE AND FEDERAL
LAWS AND REGULATIONS APPLICABLE TO WATER POLLUTION IN WATERS OF
THE STATE AND IN INTERSTATE WATERS.
2. CONTRACTOR SHALL MINIMIZE THE POTENTIAL FOR AIR POLLUTION BY THE
USE OF EMISSION CONTROL EQUIPMENT ON CONTRACTOR OPERATED
EQUIPMENT, SHUT -DOWN OF MOTORIZED EQUIPMENT WHEN NOT IN USE, AND
ACTIVELY CONTROLLING DUST EMISSIONS THROUGHOUT THE PROJECT.
3. ANY WASTE DISCOVERED DURING THE PROJECT SHALL NOT BE MOVED WITH
OUT PRIOR AUTHORIZATION OF THE OWNER AND BE DIRECT -LOADED INTO
COVERED ROLL -OFF CONTAINERS FOR TEMPORARY STORAGE PRIOR TO
DISPOSAL IN A PERMITTED LANDFILL.
OFF-SITE AREAS
THERE ARE NO OFFSITE AREAS ASSOCIATED WITH THIS PROJECT.
EROSION & SEDIMENT CONTROL PERMITTING
CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL LOCAL AND STATE
EROSION AND SEDIMENT CONTROL PERMITS AND MAINTAINING ALL EROSION AND
SEDIMENT CONTROLS IN ACCORDANCE WITH THE PERMIT REQUIREMENTS.
GENERAL NOTES
1. ALL ELEVATIONS INDICATED REFER TO SITE DATUM OF NAVD88.
2. THE INFORMATION AND DATA SHOWN OR INDICATED WITH RESPECT TO THE
EXISTING UNDERGROUND UTILITIES AT OR CONTIGUOUS TO THE SITE ARE
BASED ON INFORMATION AND DATA FURNISHED TO THE OWNER AND
ENGINEER BY THE OWNERS OF SUCH UNDERGROUND FACILITIES OR OTHERS.
THE OWNER OR ENGINEER SHALL NOT BE RESPONSIBLE FOR THE
ACCURACY OR COMPLETENESS OF SUCH INFORMATION OR DATA. THE
CONTRACTOR SHALL HAVE FULL RESPONSIBILITY FOR CONFIRMING THE
ACCURACY OF THE DATA, FOR LOCATING ALL UNDERGROUND UTILITIES, FOR
COORDINATION OF THE WORK WITH OWNERS OF SUCH UNDERGROUND
UTILITIES DURING CONSTRUCTION, FOR THE SAFETY AND PROTECTION
THEREOF AND REPAIRING ANY DAMAGE THERETO RESULTING FROM THE
WORK. ALL OF THESE CONDITIONS SHALL BE MET AT NO ADDITIONAL
COST TO THE OWNER. THE CONTRACTOR SHALL CONTACT "MISS UTILITIES"
OF VIRGINIA AT 1-800-552-7001 PRIOR TO THE START OF WORK.
3. WHEN WORKING ADJACENT TO EXISTING STRUCTURES, POLES, ETC., THE
CONTRACTOR SHALL USE WHATEVER METHODS THAT ARE NECESSARY TO
PROTECT STRUCTURES FROM DAMAGE. REPLACEMENT OF DAMAGED
STRUCTURES SHALL BE AT THE CONTRACTOR'S EXPENSE.
4. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROTECTING ALL EXISTING
SITE STRUCTURES FROM DAMAGE AND COORDINATING WORK SO THAT THE
OWNER CAN MAKE NECESSARY ARRANGEMENTS TO MODIFY/PROTECT
EXISTING STRUCTURES FROM DAMAGES.
5. THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYING ALL UTILITY
OWNERS, ADJACENT LAND OWNERS WHOSE PROPERTY MAY BE IMPACTED AND
THE VIRGINIA DEPARTMENT OF TRANSPORTATION PRIOR TO COMPLETING ANY
OFF-SITE WORK.
6. CONTRACTOR SHALL NOTIFY AND COORDINATE ALL WORK INVOLVING
EXISTING UTILITIES WITH UTILITY OWNERS, AT LEAST 72 HOURS PRIOR TO THE
START OF CONSTRUCTION.
7. CONTRACTOR SHALL IMMEDIATELY REPORT ANY DISCREPANCIES BETWEEN
EXISTING CONDITIONS AND CONTRACT DOCUMENTS TO THE OWNER AND
ENGINEER.
8. CONTRACTOR SHALL SUBMIT FOR THE APPROVAL OF THE OWNER
SUBMITTALS OF ALL SPECIFIED MATERIALS LISTED IN THE PLANS, TO
INCLUDE SHOP DRAWINGS, MANUFACTURER'S SPECIFICATIONS AND
LABORATORY REPORTS. THE OWNER'S APPROVAL OF SUBMITTALS WILL BE
GENERAL AND WILL NOT RELIEVE THE THE CONTRACTOR FROM THE
RESPONSIBILITY OF ADHERENCE TO THE CONTRACT AND FOR ANY ERROR
THAT MAY EXIST.
MINIMUM STANDARDS (MS)
All applicable Virginia Erosion and Sediment Control Regulations and Minimum
Standards shall be adhered to during all phases of construction. These
include, but are not limited to the following:
1. STABILIZATION OF DENUDED AREAS:
Permanent or temporary soil stabilization shall be applied to bare areas
within seven days after final grade is reached on any portion of the site.
Temporary soil stabilization shall be applied within seven days to denuded
areas that may not be at final grade, but will remain dormant or
undisturbed for longer than 30 days. Permanent stabilization shall be
applied at areas that are to be left dormant for more than 1 year.
2. STABILIZATION OF SOIL STOCKPILES:
During construction of the project, soil stockpiles shall be stabilized or
protected with sediment trapping measures. The applicant is responsible for
temporary protection and permanent stabilization of all soil stockpiles on
site as well as soil intentionally transported from the project site.
3. PERMANENT VEGETATIVE COVER
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 achieve that, in the opinion
of the county Inspector, is uniform and mature enough to survive to inhibit
erosion.
4. TIMING & STABILIZATION OF SILT TRAPPING MEASURES:
Sediment basins and traps, perimeter dikes, sediment barriers and other
measures intended to trap sediment shall be constructed as a first step in
any land disturbing activity and shall be made functional before upslope
land disturbance takes place.
5. STABILIZATION OF EARTHEN STRUCTURES:
Stabilization measures shall be applied to earthen structures such as
dams, dikes and diversions immediately after installation.
6. SEDIMENT TRAPS AND BASINS:
A sediment basin shall control surface runoff from disturbed areas that is
comprised of flow from drainage areas greater than or equal to three acres.
The sediment basin shall be designed and constructed to accommodate the
anticipated sediment loading for the land disturbing activity. The outfall
device or system device shall take into account the total drainage area
flowing through the disturbed area to be served by the basin.
7. CUT AND FILL SLOPES:
Cut and fill slopes shall be designed and 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.
& CONCENTRATED RUN-OFF 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 drain
structure.
9. WATER SEEPS FROM A SLOPE FACE:
Whenever water seeps from a slope face, adequate drainage or other
protection shall be provided.
10. STORM SEWER INLET PROTECTION:
All storm sewer inlets that are made 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.
11. STABILIZATION OF OUTLETS:
Before newly constructed stormwater conveyance channels are made
operational, adequate outlet protection and any required temporary or
permanent channel lining shall be installed in both the conveyance channel
and receiving channel.
12. WORK IN LIVE WATERCOURSES:
When work in a live watercourse is performed, precautions shall be taken
to minimize encroachment, control sediment transport and stabilize the work
area to the greatest extent possible during construction. Nonerodible
material shall be used for the construction of causeways and cofferdams.
Earthen fill may be used for these structures if armored by nonerodible
cover materials.
13. CROSSING A LIVE WATERCOURSE:
When a live watercourse must be crossed by construction vehicles more
than twice in any six month period, a temporary stream crossing
constructed of nonerodible materials shall be provided.
14. APPLICABLE REGULATIONS:
All applicable federal, state and local regulations pertaining to working in
or crossing live watercourses shall be met.
15. STABILIZATION OF BED AND BANKS
The bed and banks of a watercourse shall be stabilized immediately after
work in the watercourse is completed.
16. UNDERGROUND UTILITIES:
Underground utilities shall be installed in accordance with the following
standards in addition to other criteria:
a.No more than 500 linear feet of trench may be opened at one time.
b.Excovated material shall be placed on the uphill side of trenches
c. Effluent for dewatering operations shall be filtered or passed through
approved sediment trapping device, or both, and discharged in a manner
that does not adversely affect flowing streams or offsite property.
d.Material used for backfilling trenches shall be properly compacted in order
to minimize erosion and promote stabilization.
e. Restabilization shall be accomplished in accordance with these regulations.
f. Applicable safety regulations shall be complied with.
17. CONSTRUCTION ACCESS ROUTES:
Where construction vehicle access routes intersect paved public roads,
provisions shall be made to minimize the transport of sediment by vehicular
tracking onto paved surfaces. Where sediment is transported on to a
public road surface, the road shall be cleaned thoroughly at the end of
each day. Sediment shall be removed by shoveling or sweeping and
transported to a sediment control disposal area. Street washing shall be
allowed only after sediment is removed in this manner. This provision shall
apply to individual lots as well as to larger land disturbing activities.
18. TEMPORARY E&S 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 authorized by the local program
authority. Trapped sediment and the disturbed soil areas resulting from the
disposition of temporary measures shall be permanently stabilized to prevent
further erosion and sediment.
19. ADEQUACY OF RECEIVING CHANNELS:
Properties and waterways 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 stormwater runoff for the stated
frequency storm of 24-hour duration.
Nlk
VUfP
U
ic. N45 03
�2y16�I
w
�o� lbw
�`rsJONAL ���
Kra% rim-, w*3
man
rim CY)
CT)
w5C. r6- 100
APP 13uffet\
0.5\Ac of Ex. —re0m-1 —
Gra4\Trails TBRcl"
?1� - 'w, " w " omw M..
Twomm 4
00"
C) TBR
0
TBR
—N 11 E�. Tree (Typ.)1
TBR
TBR
Ex. Concrete
-7`7
Pad To Remain TBR
F,
\TBR
7
I P.4r -:7'
-a ve . ... ..
TBR R
e" 1z
Be:,
-77
-7
7
J
Ex. ood
Gravel Drivew
\ \ \ �� .^: , / '�,�; .r' % // /, // /�� �,;:,... + /, T6 Be Removed Re7cin
�Ex/ Q� 1`4e To
9C
C/)
if T13®R
TBR OTBR
IMP /00600/--/ 00— 00— 028B
cm..3-c
TBR�
ATROCK/// FAMILY FARM Z.
0
8.01 ACRES
A
T nBR
N
17
'Zoned: RA
x. Gravel I
Use: Farm
,Parking To Be
Removed I
F
C)
Go
Ex. Rock
Outcrop
I Ex. Fe?ce
To Rednain
0
03
r –0
Ex. Building
To Remain
07
66E
xz 0 jc� I
Nif CX of J
Qil
V,
J/
'Q
o------- -4
- ---- - ------
r
7,
mr-
%
24 �-
nimits Of
D
rbance 00
-istu5�
Ex. Gravel Roads
to be Converted %
to Turf
IN
Area Of
Disturbance
=5.8 Ac.
MAP SHOWING TOTAL AREA OF DISTURBANCE
SCALE: 1" = 100'
See Sheet C4 for
E&S Control Plan.
30 0 30 60 90
1 In wl In In 0 10 In 93 In 01 - 7.
Scale: 1"=30'
SOILS LEGEND
9C — Braddock Very Stony Loam — 7 to 15% Slopes
17 — Crcligsviille Loam
82C —Thurmont Very Stony Loam — 7 to 15% Slopes
SOIL DIVIDE
C�
j IN SHIMP >
Lic. Jo. 0 183
C 9, i/4 I"16
V1
��-IISSIONAL 16�
-
k
d *ravel uverTiow i I , i
/ / �° / }: / ( ,_':(: IM
Parking rea
I 1 I I \ 1
\ / / Culvert C I Stand \ Ji so
_x
\ \ :.:::
/ \
�y o ..:;:;. / k \ nin Div fsion Chanel
From SedimerYt--xTrap
Fence
C Invert ,,o /
_
1
F 50 ST / I /
\ / I'
/ / _
,
\ � / Profile CL �- I • I / /� /
\ / / \
\ / New Gras
\ \ tandar�d 2 /
\ / / �-
.:: '�\ Trail T / Culvert D' 1 - lid
�1,::::..... (Y •) / / /' � Lining \ � /� / 1 --'
2
/
` . ST
:::::::::::::::::::��:'�'::::::::;:::�:::�;:;::�;::�::;:;:�"'::::::::.:•... .. ••--%"..."_' �;._/ C2
CM
1 I\ m C v A 1.. / { I /
► I / / / / /
\ 4ining
-\ /
Level re er /
\
New Mulch
/ a I P /
1 I k
r \I
I I
I
See it
O Deta s
o /
1
h �
T i
/
ra I T /
N
l I
t
(YP•) t /
x
k
I >t d
/ o
/ SIF ,-
Ne/4 56 x
;pr avel P rkin
IDV
Area �.•:. .., .. -,,:.. - � � \t�
rn
4`
p"
DRAINAG AREA I I _
TO SEDIMENT TRAP L_ I
\. � \ \ _ a 1 � , f. o, :.: °� • / ' �`�' �' / / I
;,j Install Diverp(on Prior to
Gradin Play Area. I I`
i L� I I Ex. Building , 4::'`.• f 9 Y I.
Q� I
To Remain / / / 1 I I /• I
I C,, � i� \ 1 I � \ ,.. ,: f ' rQ.� �, j" l / / I I I \ ` ��i I I 1 / I o ��'•
' , :.ai...'.•. •.' / / New Dirty
J
Trail
m. •
U.
SF
1
30 30 60 90
ME
\ \ \ •r,//\\ I I I I \\
Scale: 1"=3 \ \ \ /i �' 1 \
\ \
-x x x -x ----x- x-x-x-x�x-x -x-x •--x - x'•--/--x-x--x-x-x-x-x-x-x-x•I--x-x-x--x-x--x-�x--Ex�F Fence x -x XV -x-x-x-x-x I x
/ / \ --'S ---•-( --fix-x--fix-x --x �•x----->� x.-.x-x•..1-x._.x....-x.�...._x-m•-x� , It
VDOT #3, #357, #5, #56 OR
#57 COARSE AGGREGATE IN
GALVANIZED WIRE MESH BASKET
* FILTER CLOTH
SECURE WIRE TO GROUND
WITH WIRE STAPLES
7' MIN. I 3'
UNDISTURBED
SOIL
CROSS SECTION
VARIABLE (MIN. 7')
SECURE WIRE MESH TO TIMBER
6X6 TREATED TIMBER
6" MIN.
REBAR TO
MIN, 6'
LEVEL SPREADER WITH RIGID LIP
* MIN. PHYSICAL REQUIREMENTS OF FILTER CLOTH NOTED IN STD. & SPEC. 3.19, RIPRAP
SOURCE: VA. DSWC AND N.C. Erosion and Sediment Control Planning and Design Manual PLATE: 3.21-2
6'x 6•
Treated /
12- Anchor Bdt Timber
3' On Center
8 ContO
24" Mi /
Foundation /�
Wall v>
Concrete--
Fm
12
IS Footer Detail
evel Spreader
Qio In=8.5 CFS 86 8� /
�- -- 5 5
86 00
,lb 85e /
/85 30/
� 858 530 6"x6"
DITCH 6/ Treated
With EC -3 Timber
Matting / 9000 ..'3 600 (See Inset
1_ _ 1► 8560 Detail)
20
90
LEVEL SPREADER DETAILS
C4 Plan View: 1"=10' Notof Rigid Timber Lip Must
be Maintained with a 0% Slope
Culvert Sizing Chart
Section
Area to
Culvert
Q 110
(mlax,
cf:s)
Q�H
Length
(Feet)
Diameter
(In.)
Inv. In
Inv. Out
Culvert
Slope
Culvert A
1.19
2.6
1.0
7.0
15
1001.60
1001.40
2.5%
Culvert B
1.89
4.2
1.0
12.0
18
1001.00
1000.80
2.2%
Culvert C
3.04
5.9
1.0
60.0
18
997.00
996.00
1.7%
Culvert D
3.55
6.0
0.6
30.0
18
994.80
994.10
2.5%
Culvert E
0.74
1.4
0.6
50.0
15
963.00
962.00
2.0%
Culvert F
0.12
0.2
1.0
10.0
12
1002.10
1001.90
2.0%
Note: For ditch and culvert map see Exhibit, page 21 of Calculation
booklet under cover dated May 20, 2016, viewable in County View and
project files. Also sere Final Site Plan SDP -2016-00014 Sheet no. C4.
• • • W ;4 Illi`a iiiireiei e • •
SYMBOL
N0. TITLE
KEY
3.02
CONSTRUCTION ENTRANCE
CE
®
3.07
INLET PROTECTION
IP
3.09
TEMPORARY DIVERSION
DV
[DRAWN TO SCALE]
3.13
TEMPORARY SEDIMENT TRAP
ST
3.18
OUTLET PROTECTION
OP
3.31
TEMPORARY SEEDING
TS
3.32
PERMANENT SEEDING
PS
3.35
MULCH
MU
LIMITS OF DISTURBANCE
DRAINAGE AREA
EXISTING CONTOUR
PROPOSED CONTOUR
_Culvert
Culvert
�LT
'A
�j
G'r I
TIN HIIV a
/ Lic. 4 M 83
`rs/ONAL E
Sediment Trap Design Data
Grass - 2 lbs/acre; Winter Rye - 20
1' Z
GROUND
when slopes are greater than 3:1.
Culvert A
ELEV.
Weir Length
DA
Wet
D1
Wet Vol.
Dry
02
Dry Vol.
No.
A
B
C
H (ft.)
Z (ft.)
(ft.)
(Acs.)
Vol.
(ft.
Cy
Vol.
(ft')
Cy
�.
limed at a rate of 2 tons per acre, and
fertilized at a rate of 600 lbs. per acre of 10-20-10
(14 lbs. per 1,000 square feet) or
equivalent.
911
11115
6.0
(Req.)
)
(Prov.)
(Req.)
4 - 6 tons
(Prov.)
1
988
986
984
3
3
7
1.15
77
2
79
77
2
138
1+00
ORIGINAL
Grass - 2 lbs/acre; Winter Rye - 20
1' Z
GROUND
when slopes are greater than 3:1.
Culvert A
ELEV.
15
Straw or hay at a rate of 2 tons/acre. Must
EL=A
Area 2
1.0'
LIME AND FERTILIZER SPECIFICATIONS:
DRY STORAGE D2
Lime and fertilizer needs should be determined
by soil tests. Soil tests may be preformed by
67 CU. YD./ ACRE
N
EL=B
Area 1
from County Extension Agents. Under unusual
conditions where it is not possible to obtain a
WET STORAGE
For Permanent Seeding: Seeded areas shall be
limed at a rate of 2 tons per acre, and
67 CU. YD./ACRE
(23 lbs. per 1,000 square feet) or
equivalent.
Dl
�.
(EXCAVATED) FILTER CLOTH GROUND
GROU D
EL=C ELEV.
*SEE PLATE 3.13-1 COARSE AGGREGATE CLASS I RIPRAP
CROSS SECTION OF OUTLET
CLASS I RIPRAP
LENGTH (IN FEET) _
6 X DRAINAGE AREA
(IN AC.)
DIVERSION
DIKE
/ COARSE AGGREGATE
EXCAVATED
AREA FILTER CLOTH
�_�'�'
**COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5
OUTLET (PERSPECTIVE VIEW)
TOP
OF�
EX. BERM 1-4.0'
GRADE
111---------------------------------
1+00
,
------------------------------------
1+25
Station
TEMPORARY SEDIMENT TRAP VQT
C2
SILT FENCE CULVERT INLET
PROTECTION
ENDWALL
DISTANCE IS 6' MINIMUM IF FLOW
IS TOWARD EMBANKMENT
FLOW
*OPTIONAL STONE COMBINATION
h
FLOW
� 2.5'
*VDOT #3, #357, #5, #56 OR #57 COARSE AGGREGATE CLASS I RIPRAP
TO REPLACE SILT FENCE IN " HORSESHOE " WHEN
HIGH VELOCITY OF FLOW IS EXPECTED
2 CULVERT INLET PROTECTION IP
C5 Not To Scale
1+50
PERMANENT SEEDING SPECIFICATIONS (PS
February 16 through April 30:
Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 Ibs/acre; Annual Rye - 20
lbs/acre. Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre
when slopes are greater than 3:1.
May 1 through August 15:
Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; Foxtail Millet - 20
lbs/acre. Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre
when slopes are greater than 3:1.
August 16 through October 31:
Kentucky 31 Fescue - .128 lbs/acre; Red Top Grass - 2 lbs/acre; Annual Rye - 20
lbs/acre. Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Fescue to 108 lbs/acre
when slopes are greater than 3:1.
November 1 through February 15:
Kentucky 31 Fescue - 128 lbs/acre; Red Top
Grass - 2 lbs/acre; Winter Rye - 20
lbs/acre. Add 20 lbs/acre of Crownvetch and
reduce Kentucky 31 Fescue to 108 lbs/acre
when slopes are greater than 3:1.
Culvert A
MULCHING SPECIFICATIONS:
15
Straw or hay at a rate of 2 tons/acre. Must
be anchored. Spread with mulch blower or
by hand.
8115
LIME AND FERTILIZER SPECIFICATIONS:
511
Lime and fertilizer needs should be determined
by soil tests. Soil tests may be preformed by
the Cooperative Extension Service Soil Testing
Laboratory at VPI&SU, or by a reputable
commercial laboratory. Information concerning
the State Soil Testing Laboratory is available
from County Extension Agents. Under unusual
conditions where it is not possible to obtain a
soil test, the following soil amendments will be applied:
For Permanent Seeding: Seeded areas shall be
limed at a rate of 2 tons per acre, and
fertilized at a rate of 1,000 lbs. per acre of 10-20-10
(23 lbs. per 1,000 square feet) or
equivalent.
3.0
For Temporary Seeding: Seeded areas shall be
limed at a rate of 2 tons per acre, and
fertilized at a rate of 600 lbs. per acre of 10-20-10
(14 lbs. per 1,000 square feet) or
equivalent.
911
EXISTING GROUND
3 PERMANENT SEEDING PS
C5 Not To Scale
70' MIN.
A 1 3'
FILTER CLOTH 6" MIN. A
SIDE ELEVATION
70' MIN.
BWASHRACK
1 F_ (❑PTI❑NAL)
VD❑T #1 I F� POSITIVE DRAINAGE
COURSE AGGREGATEB TO SEDIMENT
TRAPPING DEVICE
* MUST EXTEND FULL WIDTH
OF INGRESS AND EGRESS PLAN LAN VIE W
EXISTING
PAVEMENT
5:1
MOUNTABLE BERM
<OPTIONAL)
10' MIN.
EXISTING
PAVEMENT
10" MIN.
RE11141 UI11L,LU L.UIV -NE- 1 L LKH11V Jt HLt
r4_� STONE CONSTRUCTION ENTRANCE-
C5JNot To Scale
SECTION A -A
107 SETTLEMENT
TYPICAL VEE -SHAPED DIVERSION
5 TEMPORARY DIVERSION DV
C5 Not To Scale
TABLE 3.31-C
TEMPORARY SEEDING PLANT MATERIALS, SEEDLNG RATES, AND DATES
a Northern Piedmont and Mountain region. See Plates 3.22-1 and 3.22-2.
b Southern Piedmont and Coastal Plain.
c May be used as a cover crap with spring seeding.
d May be used as a cover crop with fall seeding.
X May be planted between these dates.
- May be planted between these dates.
s TEMPORARY SEEDING TS
C5 Not To Scale
PIPE OUTLET CONDI TIONS
3 d (MIN.)
'IPE OUTLET TO WELL
)EFINED CHANNEL
depth
SECTION A -A T
FILTER CLOTH KEY IN 6"-9"; RECOMMENDED FOR ENTIRE PERIMETER
NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION
BASKET, OR CONCRETE.
2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED
USING PLATES 3.18-3 AND 3.18-4.
3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT
LESS THAN 6 INCHES.
7 OUTLET PROTECTION OP
C5 Not to scale
SEEDING RATE
NORTW
SOUTH,
Depth
(in)
Culvert A
PLANT
15
4.0
6.0
511
8115
2115
511
911
SPECIES311
CHARAC'I-ERISTICS
18
Acre
1000 ftz
to
to
to
to
to
W
6.0
12
3.0
6.0
4C30
9115
11th
4130
911
11115
6.0
OATS
3 bu. (up to 100 Ibe..
2 lbs.
X
4 - 6 tons
-
X
-
V -x sprung varieties (e.g.. Noble).
Avera fR!6V
net lows than 50 lbs.}
use in fine turf aeras. Apply
with mulch blower or by
RYE°
2 hu. (up to i to lbs.,
2.5 lbs.
X
4 - 6 tons
X
X
-
X
use for late fail aivttings. winter
(Secale cerealel
not tele batt 50 lbs.)
nitrogen per ton. Do not
use in fine turf areas. Apply
coy,". Tolerates cold and low
with mulch blower, chip
handler, or by hand.
Bark Chips
50 - 70 cu.
moisture.
GERMAN Mn.LET
So tbs.
apprn%. 1 lb.
X
-
X
turf areas. Apply with
Wasm•season annual*hies at first
Setaria 'ta }
mulch blower, chip handler,
or by hand.
* When fiber mulch is the only available mulch during periods when straw
should be used, apply at a minimum rate of 2000 lbs./ac. or 45 lbs./1000 sq. ft.
frost- May be added to summer
mixes.
ANNUAL RYEGRASS`
60 lbs.
10h lbs.
X
X
X
X
May be added in mixes. Will
a&LUM rnul±fh__m)
mow out of most ataro&t.
WEEPING
15 !b®.
51h cu.
X
X
-
Warmwmon perennial. May
LOVEGRASS
bunch. To'z W. *Y slopes
(ErggMg i ns rvute?
and acid. infertile soils. May be
add«1 to mixes.
KOREAN
25 11n.approx.
114
X
X
-
X
X
-
Warm Season "mlegume.
LESPEDEZA`
lbs.
Tolerates acid arils. May be
(t edeza stn tae
addod to mixes.
a Northern Piedmont and Mountain region. See Plates 3.22-1 and 3.22-2.
b Southern Piedmont and Coastal Plain.
c May be used as a cover crap with spring seeding.
d May be used as a cover crop with fall seeding.
X May be planted between these dates.
- May be planted between these dates.
s TEMPORARY SEEDING TS
C5 Not To Scale
PIPE OUTLET CONDI TIONS
3 d (MIN.)
'IPE OUTLET TO WELL
)EFINED CHANNEL
depth
SECTION A -A T
FILTER CLOTH KEY IN 6"-9"; RECOMMENDED FOR ENTIRE PERIMETER
NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION
BASKET, OR CONCRETE.
2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED
USING PLATES 3.18-3 AND 3.18-4.
3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT
LESS THAN 6 INCHES.
7 OUTLET PROTECTION OP
C5 Not to scale
0
J
ORGANIC MULCH MATERIALS AND APPLICATION RATES
La (ft)
Diameter
(in.)
3Do
(ft)
Depth
(in)
Culvert A
7.0
15
4.0
6.0
Culvert B
9.0
18
4.5
7.5
Culvert C
9.0
18
4.5
7.5
Culvert D
9.0
18
4.5
7.5
Culvert E
6.0
12
3.0
6.0
Culvert F
6.0
12
3.0
6.0
Culvert G
6.0
12
3.0
6.0
0
J
ORGANIC MULCH MATERIALS AND APPLICATION RATES
RATES:
MULCHES:
NOTES:
per Acre
Per 1000 sq. ft.
Straw or Hay
12 - 2 tons
70 - 90 lbs.
Free from weeds and coarse
(Minimum 2
0
matter. Must be anchored.
\j
tons for
U
Spread with mulch blower or
winter cover)
by hand.
Fiber Mulch
Minimum
35 lbs.
Do not use as mulch for
a>
'>
a;
Ch -1
1.500 lbs.
winter cover or during hot,
dry periods.* Apply as
v
-0
slurry.
Corn Stalks
4 - 6 tons
185 - 275 lbs.
Cut or shredded in 4-6rr
lengths. Air-dried. Do not
use in fine turf aeras. Apply
with mulch blower or by
hand.
Wood Chips
4 - 6 tons
185 - 275 lbs.
Free of coarse matter. Air-
dried. Treat with 12 lbs
nitrogen per ton. Do not
use in fine turf areas. Apply
with mulch blower, chip
handler, or by hand.
Bark Chips
50 - 70 cu.
1-2 cu. yds.
Free of coarse matter. Air -
or
yds.
dried. Do not use in fine
Shredded
turf areas. Apply with
Bark
mulch blower, chip handler,
or by hand.
* When fiber mulch is the only available mulch during periods when straw
should be used, apply at a minimum rate of 2000 lbs./ac. or 45 lbs./1000 sq. ft.
Source: Va. DWSC
ri' MULCHING MU
C5Not To Scale
CONSTRUCTION OF A SILT FENCE
(WITH WIRE S UPPOR T�
1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS.
TRENCH UPSLOPE ALONG THE LINE
OF POSTS.
/ I
FLOW
3. ATTACH THE FILTER FABRIC TO THE WIRE
FENCE AND EXTEND IT INTO THE TRENCH
� G
4
FLOW
4. BACKFILL AND COMPACT THE
EXCAVATED SOIL.
EXTENSION OF FABRIC AND WIRE INTO THE TRENCH.
FILTER FABRIC
WIRE
SILT FENCE ( SF
Not To Scale
O� Gf
C
U JIB IN M. SHIMP
L��1o.45183
P
O
��SSIONAL E��'`
� � N
Date
4/15/16
Scale
Sheet No.
C5 OF 5
File No.
15.051
o
0
\j
c
o
U
V
�
WX00
o
U
o
O
U
0
�I
a>
'>
a;
Ch -1
o V
'>
a�
Elf
�O
Z
v
-0
W
r)
� � N
Date
4/15/16
Scale
Sheet No.
C5 OF 5
File No.
15.051