HomeMy WebLinkAboutWPO201300068 Plan - Approved 2013-10-28'ARTOWTOWIno
ALBEMARLE COUNTY, V1
SHEET
C I
- COVER SHEET
SHEET
C2
- ER051ON
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SEDIMENT
CONTROL
NARRATIVE
SHEET
C3
- ER0510N
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SEDIMENT
CONTROL
PLAN
SHEET
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- EK0510N
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SEDIMENT
CONTROL
DETAILS
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- ER051ON
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5EDIMENT
CONTROL
DETAILS
GENERAL CONSTRUCTION NOTES
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).
PLAN NOTES:
Source of Boundary and Topography: Field Survey by Roger Ray & Associates, Inc.
Drainage Areas determined using topography from the Albemarle County CIS
Simon Walker et al
2865 Free Union Rd
Charlottesville VA, 22901
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Date
10/8/2013
Scale
N/ . A
Sheet No.
C1 OF 5
File No.
13.021
t1, I IN ski: I , 101re I 1 i
PROJECT DESCRIPTION
THIS SITE IS CURRENTLY COVERED WITH MATURE TREES, WITH A FEW SMALL
STRUCTURES NEAR THE ROAD, WITHIN THE COUNTY OF ALBEMARLE. THE
PROPOSAL 1S THE CONSTRUCTION OF A PUBLIC ROAD TO PROVIDE ACCESS TO
FIVE NEW SINGLE - FAMILY LOTS.
THE TOTAL AREA OF DISTURBANCE IS 2.12 ACRES
PROJECT INVOLVES THE FOLLOWING WORK THE PR NV0 L KA CTIVITIES:
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. LLATION OF TEMPORARY AND PERMANENT EROSION AND SEDIMENT
T N N
CONTROL MEASURES AS SHOWN ON THE PLAN AND DETAILS.
3. INSTALLATION OF CULVERT FOR SITE DRAINAGE.
4. CONSTRUCTION OF ROAD AS SHOWN ON THE SITE PLAN,
EXISTING SITE CONDITIONS
THE SITE IS CURRENTLY A WOODED SINGLE FAMILY RESIDENTIAL LOT.
ADJACENT PROPERTIES
THIS PROPERTY IS BORDERED TO THE WEST BY FREE UNION ROAD, AND TO THE
NORTH, EAST, AND SOUTH BY SINGLE- FAMILY RESIDENTIAL LOTS.
OFF -SITE AREAS
NO OFF -SITE (OUTSIDE OF PROJECT LIMITS) LAND DISTURBING ACTIVITIES WILL
TAKE PLACE IN THE COURSE OF THIS PROJECT.
SOILS
REFER TO SHEET C3 FOR LOCATIONS AND DESCRIPTIONS OF KNOWN SOIL TYPES
CRITICAL EROSION AREAS
THERE ARE NO AREAS ON THIS SITE WITH CRITICAL EROSION CONCERNS.
PERMANENT STABILIZATION
THOSE AREAS OF THE SITE WHICH WILL NOT BE ULTIMATELY PAVED WILL HAVE
PERMANENT SEEDING ESTABLISHED, AS WELL AS TREES AND SHRUBS.
STORM WATER
MANAGEMENT:
STORM WATER MANAGEMENT IS ADDRESSED BY A NEW BIOFILTER AND DRY
POND PROVIDED NEAR THE NORTHERN BORDER OF THE SITE, IN AN EXISTING
SWALE. SEE ATTACHED CALCULATIONS FOR VERIFICATION OF CAPACITY.
EROSION & SEDIMENT CONTROLS
1. SAFETY FENCE: A PROTECTIVE BARRIER INSTALLED TO PROHIBIT
UNDESIRABLE USE OF AN EROSION CONTROL MEASURE. STD. AND
SPEC. 3.01.
2. 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.
3. 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.
4. STORM DRAIN INLET PROTECTION: THE INSTALLATION OF VARIOUS
KINDS OF SEDIMENT TRAPPING MEASURES AROUND DROP INLETS OR
CURB INLET STRUCTURES PRIOR TO PERMANENT STABILIZATION OF
THE DISTURBED AREA; LIMITED TO DRAINAGE AREAS NOT EXCEEDING
ONE ACRE, AND NOT INTENDED TO CONTROL LARGE, CONCENTRATED
STORMWATER FLOWS. STD. AND SPEC. 3.07.
5. TEMPORARY RIGHT -OF -WAY DIVERSION: A RIDGE OF COMPACTED SOIL
OR LOOSE GRAVEL CONSTRUCTED ACROSS A DISTURBED
RIGHT -OF -WAY OR SIMILAR SLOPING AREA TO SHORTEN THE FLOW
LENGTH WITHIN THE DISTURBED STRIP AND DIVERT THE RUNOFF TO A
STABILIZED OUTELET. EARTHEN DIVERSIONS ARE APPLICABLE WHERE
THERE WILL BE LITTLE OR NO CONSTRUCTION TRAFFIC WITHIN THE
RIGHT -OF -WAY, AND GRAVEL STRUCTURES ARE APPLICABLE WHERE
VEHICULAR TRAFFIC MUST BE ACCOMMODATED. STD. AND SPEC. 3.11.
6. 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.
7. OUTLET PROTECTION: THE INSTALLATION OF RIPRAP CHANNEL
SECTIONS AND /OR STILLING BASINS BELOW STORM DRAIN OUTLETS TO
REDUCE EROSION AND UNDER - CUTTING FROM SCOURING AT OUTLETS
AND TO REDUCE FLOW VELOCITIES BEFORE STORMWATER ENTERS
RECEIVING CHANNELS BELOW THESE OUTLETS. STD. AND SPEC. 3.18.
8. LEVEL SPREADER: AN OUTLET FOR DIKES AND DIVERSIONS
CONSISTING OF AN EXCAVATED DEPRESSION CONSTRUCTED AT ZERO
GRADE ACROSS A SLOPE TO CONVERT CONCENTRATED,
SEDIMENT -FREE RUNOFF TO SHEET FLOW AND RELEASE IT ONTO
AREAS OF UNDISTURBED SOIL WHICH IS STABILIZED BY EXISTING
VEGETATION. D.
I N. ST AND SPEC. 3.21.
9. 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.
10. PERMANENT SEEDING: ALL DITCHES AND ADJACENT AREAS WITHIN
15 FT OF THE EDGE OF THE DITCHES SHALL BE SEEDED IN
CONFORMANCE WITH STD. AND SPEC. 3.32. 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.
11. 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.
12. 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.
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 CONSTRUCTION,
DURI G
N 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.
GENERAL EROSION AND SEDIMENT CONTROL NOTES:
1. THE PLAN APPROVING AUTHORITY MUST BE NOTIFIED ONE WEEK PRIOR TO
THE PRE - CONSTRUCTION CONFERENCE, ONE WEEK PRIOR TO THE
COMMENCEMENT OF LAND DISTURBING ACTIVITY, AND ONE WEEK PRIOR TO THE
FINAL INSPECTION.
2. ALL EROSION AND SEDIMENT CONTROL MEASURES WILL BE CONSTRUCTED
AND MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF
THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA
REGULATIONS VR 625 -02 -00 EROSION AND SEDIMENT CONTROL REGULATIONS.
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:OOAM TO 9:OOPM.
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 0 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 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)
NOTES, AND SEQUENCE OF CONSTRUCTION
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.
THE FOLLOWING ARE THE! PROPOSED MANAGEMENT STRATEGIES AND DETAILED
SEQUENCE OF CONSTRUCTION:
STAGE 1
1. INSTALL CONSTRUCTION ENTRANCES.
2. INSTALL SILT FENCE AT THE LOCATION SHOWN ON THE EROSION &
SEDIMENT CONTROL PLAN.
3. INSTALL SAFETY FENCE AS SHOWN TO PREVENT CONSTRUCTION TRAFFIC
FROM DISTURBING THE; AREA DOWNSTREAM OF THE PROPOSED LEVEL
SPREADER.
4. CONSTRUCT SEDIMENT; TRAPS.
STAGE 2
1. CONTACT THE ENGINEER AND ALBEMARLE COUNTY FOR INSPECTION AND
APPROVAL OF ALL E &S CONTROL MEASURES. NO GRADING SHALL BEGIN
UNTIL REQUIRED MEASURES ARE APPROVED BY COUNTY INSPECTOR.
STAGE 3
i
1. UPON APPROVAL OF E &S CONTROL MEASURES, BEGIN CLEARING AND
GRADING OF THE SITE.!: RIGHT -OF -WAY DIVERSIONS SHALL BE INSTALLED AND
MAINTAINED AS SHOWN ON THE PLAN.
2. INSTALL CULVERT AS SHOWN ON THE ROAD PLAN. MAINTAIN INLET AND
OUTLET PROTECTION, AND DIVERT ALL FLOWS FROM DISTURBED AREAS SO
THEY DO NOT ENTER THE CULVERT.
3. CONSTRUCT ROAD AS !SHOWN ON THE ROAD PLAN.
4. MAINTAIN ALL E &S CONTROL MEASURES.
STAGE 4
ALL PERIMETER SILT FENCE AND STABILIZATION MEASURES SHALL REMAIN IN
PLACE UNTIL THE SITE IS DEEMED STABILIZED BY THE PLAN REVIEWING
AUTHORITY,
AFTER THE PLAN REVIEWING AUTHORITY HAS DEEMED THE SITE TO BE
STABILIZED, REMOVE SEDIMENT TRAPS AND INSTALL THE BIOFILTER.
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 1 ESPONSIBLE 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 WELL BE REGULARLY CHECKED TO ENSURE THAN A GOOD
STAND OF GRASS IS MAINTAINED.
5. AREAS WITH RIP --RAPT 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.
1
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.
CONTRACTOR SHALL BE FESPONSIBLE FOR OBTAINING ALL LOCAL AND STATE
EROSION AND SEDIMENT CONTROL PERMITS AND MAINTAINING ALL EROSION AND
SEDIMENT CONTROLS IN ACCORDANCE WITH THE PERMIT REQUIREMENTS.
THE DISTURBED AREA OF THIS SITE IS IN EXCESS OF 1.0 ACRES. A VSMP
GENERAL PERMIT IS REQUIRED FROM VA DEQ. THE CONTRACTOR SHALL BE
RESPONSIBLE FOR PREPARATION OF THE PERMIT APPLICATION AND
ACCOMPANYING SWPPP.
TREE PRESERVATION
HEAVY EQUIPMENT, VEHICULAR TRAFFIC, AND STORAGE OF CONSTRUCTION
MATERIALS INCLUDING SAIL SHALL NOT BE PERMITTED WITHIN THE DRIP LINES
OF TREES TO BE PRESERVED.
I
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. STABLIZATION 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 outfoll
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.
8. 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.Excavated 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.
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USTIN M. SHIMP
Lie. No. 45183
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Date
10/8/2013
Scale
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Sheet No.
2 OF 5
File No.
13.021
ORGANIC MULCH MATERIALS AND APPLICATION RATES
Section
RATES:
10 -Yr
Depth
MULCHES:
NOTES:
Per Acre
Per 1000 sq. ft.
Straw or Hay
12 - 2 tons
70 - 90 lbs.
Free from weeds and coarse
3.5"
(Minimum 2
3.90
matter. Must be anchored.
592
tons for
587
Spread with mulch blower or
1.5
winter cover)
0.61
by hand.
Fiber Mulch
Minimum
35 lbs.
Do not use as mulch for
72
1500 lbs.
592
winter cover or during hot,
587
3
1.5
dry periods.* Apply as
0.13
8.7
3
slurry.
Corn Stalks
4 - 6 tons
185 - 275 lbs.
Cut or shredded in 4 -6"
592
590
587
lengths. Air - dried. Do not
1.5
3
0.56
use in fine turf aeras. Apply
3
19
37.5
with mulch blower or by
30
4
592
hand.
587
3
1.5
2
Wood Chips
4 - 6 tons
185 - 275 lbs.
Free of coarse matter. Air -
22.1
2
30
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.
W hen fi be r mulch h is the only available mulch dur in g P er i ods when straw
should be used, apply at a minimum rate of 2000 lbs. /ac. or 451bs./1000 sq. ft.
SAFETY o 0
ou
CONSTRUCTION OF A SILT FENCE
N o � Z
0 0�
(WITHOUT WIRE SUPPORT) ,,. r,. " W
1. SET THE STAKES. 2. EXCAVATE A 4"X 4 TRENCH z
It UPSLOPE ALONG THE LINE OF 0 man O '-/ W
STAKES. �[�` a
II111 6 WMAX -TV in nn � •�•■ ®�■ ® � v z 2
Ditch Sections
Section
2 -Yr
Velocity
10 -Yr
Depth
1
3.30
5"
2
3.20
4.5"
3
2.60
3.5"
4
3.90
6.5"
N
o
N
W
3. STAPLE FILTER MATERIAL 4. BACKFILL AND COMPACT Summary of Calculation Results from Brian Ray.
TO STAKES AND EXTEND THE EXCAVATED SOIL. Refer to Road Plan submittal W
IT INTO THE TRENCH, N J
A Z W
i 0
y TYPICAL DITCH SECTION w
FOR SCC 1 -6: 0
III _ PERSPECTIVE VIEW
w N
_ / ^,� . • - y t: .:.Vi.•;:??:'µ V .
/ _ y "' „• >< EC -2 Matting
FLOW / ,.t�:. ;. ,�, - 9
J-
_ III
I
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- III -I I
II•:L _ _.,s..
-
-
1.33'
F LOW INSTALLATION
CATION
PERSPECTIVE VIEW
I_)II II -III .1
FLOW
Y
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A A U STIN M. SHIM? ;m
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1
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TYP. DITCH
?CS
C4 Not to Scal e ®NAL
/ II I I 181 WIRE T
I i FABRIC
I I71
POINTS A SHOULD BE HIGHER THAN POINT B. t
POLYEIFIriENE LINE POST
FABRIC I;;I 117I
Source: Va. DWSC DRAINAGEWAY INSTALLATION POSTS WITH IIII IIII10• MAX.
(FRONT ELEVATION) 6' MAX. METAL TIE WIRES.) Lam' CONCRETE GROUND LINE
CONVENTIONAL BRACING FOOTING
5' MIN. METAL ((17) OR
(U) POSTS
KT,\Nmulchinq NO-
Not PERSPECTIVE VIEW PERSPECTIVE VIEW
To Scale 2 Silt Fence (Without Wire Support)
C4 Not To scale PLASTIC FENCE METAL FENCE
w
3 SAFETY FENCE SAF
C4 Not To Scale
W N
1' Z
ORIGINAL
GROUND
ELEV. �✓
EL =A Area 2 1.0'
H v1
DRY STORAGE D2
+C#Iit
67 CU. YD. /ACRE , F$P#,I11!Yl'Iltlrc " i11iC �')�t1i1OJlIL]71.j[�l q a� -
__. _
EL =B Area 1 _.... PERMANENT SEEDING SPECIFICATLONS (PS) U
WET STORAGE � LtU�wTf��3 •
7': fit
67 Cu. YD. /ACRE February 16 through April 30:
D 1 ^ A :CL "° SM A A �#AO 1 "Xi ORE Kentucky 31 Fescue - 128 lbs /acre; Red Top Grass = 2 lbs /acre; Annual
FILTER CLOTH ORIGINAL EXITING Ad 0 I e of Crownvetch reduce Kentu 1
EXCAVATED GROUND EAw> +EM ',T Rye - 20 lbs/acre. d 2 lbs/acre and Kentucky 3
ELEV. "}`' Fescue to 108 lbs /acre when slopes are greater than 3:1.
EL =C 1
E 3,31-B
** May 1 through August 15:
*SEE PLATE 3.13 -1 COARSE AGGREGATE CLASS I RIPRAP `.i11`#a 2.)?'
TABLE
Kentucky 31 Fescue - 128 Ibs /acre; Red Top Grass 2 Ibs /acre; Foxtall ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS
CROSS S E CT I O N OF OUTLET -- 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. "QUICK REFERENCE FOR ALL-REGIONS "'
CLASS I RIPRAP
LENGTH (IN FEET) - gate
6 x DRAINAGE AREA August 16 through October 31:
T9L Im Planting Dates Species lbs. acre
(W Ac.) OSUTION; Kentucky 31 Fescue - 128 Ibs /acre; Red Top Grass T 2 Ibs /acre; Annual Z
A�PhfALT 'PAVED
`CCr„ WfffAC.i Rye - 20 lbs/acre. Add 20 lbs /acre of Crownvetch and reduce Kentucky 31
DIVERSION
DIKE Fescue to 108 lbs/acre when slopes are greater than 3:1. Sept. 1 = Feb. 15. 50%50 Mix -of
Annual. y
R e ass
TiING
a /tvl M t1 November 1 through February 15: (Lolium multi.- ftoruml
\\��_ Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass -' 2 lbs/acre; Winter 50 100
V
Rye - 20 lbs/acre. Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Se ale cwreale) Rye
Fescue to 108 lbs/acre when slopes are greater than 3:1.
-��- �_tvU1 �SThtO Ell 1ytlfl
10. MULCHING SPECIFICATIONS a 16 A r.3Q Ann e as
\ - A
Feb. Annual gr _ .s 60 100
// PFRA l t3; Ti tPPfhl ' € �I it Straw or hay at a rate of 2 tons /acre. Must be anchored. Spread with (Lolium.multi flonun) Z
p
mulch blower or by hand.
-,. Z
/ LIME AND FERTILIZER SPECIFICATIONS: May I Aug 31 German Millet 50 U
** __ Lime and fertilizer needs should be determined by soil; tests. Soil tests may (Setariaitalica)
�-- COARSE AGGREGATE
# 4661'Pf?�?lf .600 be preformed by the Cooperative Extension Service Soil Testing Laboratory at
I
I
��? 5EOIENT ... VPI &SU, or by a reputable commercial laboratory. Information concerning the Z a
EXC AVATED f kAsiIfa II _....
F- x�`.- - Testing Laboratory is available from County; Extension Agents.
FILTER CLOTH •� - ^"� State Soil Tes
t
AREA „ :..
Under unusual conditions where it is not possible to obtain a soil test, the Souree: Va. DS
r�
following soil amendments well be applied
f -tL.. L li For Permanent Seeding: Seeded areas shall be limed at a rate of 2 tons W
{" A A per acre, and fertilized at a rate of 1,000 lbs. per acre of 10 -20 -10 (23 $ Tem orar Seed TS
* *COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 Ibs ,
per 1 000 square feet) or equivalent W
u1t: ttla�iater («1Itc1�lktitltallI�,[ #11 ;>�rzautttt$zil 111e11t::fllctkcc: For Temporary Seeding: Seeded areas shall be limed at a rate of 2 tons per . et} Not To Scale r�
OUTLET (PERSPECTIVE V l E W acre, and fertilized at a rate of 600 lbs. per acre of'10 -20 -10 (14 lbs. per 1,000 square feet or equivalent.
. OAS
eoa�t�aZt�Y�re��C1r� �Vast):1te�r x�iust L��sc�txxeti avvxy�� rata?. °kli� e)e�il��tica to�xx.` q q
Sediment Trap Design Data
No.
o �V)
B
C
c�
Z (ft.)
Weir
Length
(ft.)
Z
1
Wet Vol.
(Req.)
W
D
N
o
N
W
3. STAPLE FILTER MATERIAL 4. BACKFILL AND COMPACT Summary of Calculation Results from Brian Ray.
TO STAKES AND EXTEND THE EXCAVATED SOIL. Refer to Road Plan submittal W
IT INTO THE TRENCH, N J
A Z W
i 0
y TYPICAL DITCH SECTION w
FOR SCC 1 -6: 0
III _ PERSPECTIVE VIEW
w N
_ / ^,� . • - y t: .:.Vi.•;:??:'µ V .
/ _ y "' „• >< EC -2 Matting
FLOW / ,.t�:. ;. ,�, - 9
J-
_ III
I
P
- III -I I
II•:L _ _.,s..
-
-
1.33'
F LOW INSTALLATION
CATION
PERSPECTIVE VIEW
I_)II II -III .1
FLOW
Y
3'MAX.
A A U STIN M. SHIM? ;m
. ..
is No. 451
8
(
- L 3
\ da T
`.row:. •tt �- <
.h
xl 4 4
k.•
.Z �v
4•
f
V
r
e„
4
x;
.I
I I
II ON
C SECTION
1
;, IIII
4
TYP. DITCH
?CS
C4 Not to Scal e ®NAL
/ II I I 181 WIRE T
I i FABRIC
I I71
POINTS A SHOULD BE HIGHER THAN POINT B. t
POLYEIFIriENE LINE POST
FABRIC I;;I 117I
Source: Va. DWSC DRAINAGEWAY INSTALLATION POSTS WITH IIII IIII10• MAX.
(FRONT ELEVATION) 6' MAX. METAL TIE WIRES.) Lam' CONCRETE GROUND LINE
CONVENTIONAL BRACING FOOTING
5' MIN. METAL ((17) OR
(U) POSTS
KT,\Nmulchinq NO-
Not PERSPECTIVE VIEW PERSPECTIVE VIEW
To Scale 2 Silt Fence (Without Wire Support)
C4 Not To scale PLASTIC FENCE METAL FENCE
w
3 SAFETY FENCE SAF
C4 Not To Scale
W N
1' Z
ORIGINAL
GROUND
ELEV. �✓
EL =A Area 2 1.0'
H v1
DRY STORAGE D2
+C#Iit
67 CU. YD. /ACRE , F$P#,I11!Yl'Iltlrc " i11iC �')�t1i1OJlIL]71.j[�l q a� -
__. _
EL =B Area 1 _.... PERMANENT SEEDING SPECIFICATLONS (PS) U
WET STORAGE � LtU�wTf��3 •
7': fit
67 Cu. YD. /ACRE February 16 through April 30:
D 1 ^ A :CL "° SM A A �#AO 1 "Xi ORE Kentucky 31 Fescue - 128 lbs /acre; Red Top Grass = 2 lbs /acre; Annual
FILTER CLOTH ORIGINAL EXITING Ad 0 I e of Crownvetch reduce Kentu 1
EXCAVATED GROUND EAw> +EM ',T Rye - 20 lbs/acre. d 2 lbs/acre and Kentucky 3
ELEV. "}`' Fescue to 108 lbs /acre when slopes are greater than 3:1.
EL =C 1
E 3,31-B
** May 1 through August 15:
*SEE PLATE 3.13 -1 COARSE AGGREGATE CLASS I RIPRAP `.i11`#a 2.)?'
TABLE
Kentucky 31 Fescue - 128 Ibs /acre; Red Top Grass 2 Ibs /acre; Foxtall ACCEPTABLE TEMPORARY SEEDING PLANT MATERIALS
CROSS S E CT I O N OF OUTLET -- 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. "QUICK REFERENCE FOR ALL-REGIONS "'
CLASS I RIPRAP
LENGTH (IN FEET) - gate
6 x DRAINAGE AREA August 16 through October 31:
T9L Im Planting Dates Species lbs. acre
(W Ac.) OSUTION; Kentucky 31 Fescue - 128 Ibs /acre; Red Top Grass T 2 Ibs /acre; Annual Z
A�PhfALT 'PAVED
`CCr„ WfffAC.i Rye - 20 lbs/acre. Add 20 lbs /acre of Crownvetch and reduce Kentucky 31
DIVERSION
DIKE Fescue to 108 lbs/acre when slopes are greater than 3:1. Sept. 1 = Feb. 15. 50%50 Mix -of
Annual. y
R e ass
TiING
a /tvl M t1 November 1 through February 15: (Lolium multi.- ftoruml
\\��_ Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass -' 2 lbs/acre; Winter 50 100
V
Rye - 20 lbs/acre. Add 20 lbs/acre of Crownvetch and reduce Kentucky 31 Se ale cwreale) Rye
Fescue to 108 lbs/acre when slopes are greater than 3:1.
-��- �_tvU1 �SThtO Ell 1ytlfl
10. MULCHING SPECIFICATIONS a 16 A r.3Q Ann e as
\ - A
Feb. Annual gr _ .s 60 100
// PFRA l t3; Ti tPPfhl ' € �I it Straw or hay at a rate of 2 tons /acre. Must be anchored. Spread with (Lolium.multi flonun) Z
p
mulch blower or by hand.
-,. Z
/ LIME AND FERTILIZER SPECIFICATIONS: May I Aug 31 German Millet 50 U
** __ Lime and fertilizer needs should be determined by soil; tests. Soil tests may (Setariaitalica)
�-- COARSE AGGREGATE
# 4661'Pf?�?lf .600 be preformed by the Cooperative Extension Service Soil Testing Laboratory at
I
I
��? 5EOIENT ... VPI &SU, or by a reputable commercial laboratory. Information concerning the Z a
EXC AVATED f kAsiIfa II _....
F- x�`.- - Testing Laboratory is available from County; Extension Agents.
FILTER CLOTH •� - ^"� State Soil Tes
t
AREA „ :..
Under unusual conditions where it is not possible to obtain a soil test, the Souree: Va. DS
r�
following soil amendments well be applied
f -tL.. L li For Permanent Seeding: Seeded areas shall be limed at a rate of 2 tons W
{" A A per acre, and fertilized at a rate of 1,000 lbs. per acre of 10 -20 -10 (23 $ Tem orar Seed TS
* *COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 Ibs ,
per 1 000 square feet) or equivalent W
u1t: ttla�iater («1Itc1�lktitltallI�,[ #11 ;>�rzautttt$zil 111e11t::fllctkcc: For Temporary Seeding: Seeded areas shall be limed at a rate of 2 tons per . et} Not To Scale r�
OUTLET (PERSPECTIVE V l E W acre, and fertilized at a rate of 600 lbs. per acre of'10 -20 -10 (14 lbs. per 1,000 square feet or equivalent.
. OAS
eoa�t�aZt�Y�re��C1r� �Vast):1te�r x�iust L��sc�txxeti avvxy�� rata?. °kli� e)e�il��tica to�xx.` q q
Sediment Trap Design Data
No.
A
B
C
H (ft.)
Z (ft.)
Weir
Length
(ft.)
DA
(Acs.)
Wet Vol.
(Req.)
D1
(ft.)
Wet Vol.
Cy (Prov.)
Dry Vol.
(Req.)
D2
(ft.)
Dry Vol.
Cy (Prov.)
1
592
590
587
5
1.5
4
0.61
40.9
3
63
40.9
2
72
2
592
590
587
3
1.5
1
0.13
8.7
3
19
8.7
2
30
3
592
590
587
3
1.5
3
0.56
37.5
3
19
37.5
2
30
4
592
590
587
3
1.5
2
0.33
22.1
3
19
22.1
2
30
rf-iVGU UVlN4,D I RUU I IUIN C.IN I R/-iINI.G VVI I f1 VVMDrl RMUr\ Scale
C4 Not To Scale
Sheet No.
5 TEMPORARY SEDIMENT TRAP ST 04 of 5
File No.
C4 Not To Scale
13.021
•�4
595
.•0
585
L
DAM PROFILE
1"=10' Horizontal
1 " =5' Vertical
1310 - FILTER LANDSCAPING SPECIES
Number
Type
Size
2
Willow Oak
1l'2" Caliper
2
River Birch
10 -12' Height
3
Green Ash
1Y2" Caliper
4
Sweet Pepperbush
12" Height
4
Winterberry
12" Height
5
InkBerry Holly
12" Height
NOTE:
PLANTS SHALL BE DISTRIBUTED
EVENLY THROUGHOUT THE BIOFILTER.
ANTI— VORTEX DEVICE DESIGN
PRESSURE RELIEF
HOLES 1/2' DIA.
1
A 0 �/ o
PLAN VIEW
�-
TACKWELD
ALL AROU
#6 X 12"
SPACER E
(TYPICAL)
RISER DIAMETER —+�-�
I I
SECTION A--A
[3
N.
2T BAR SIZE
BAR MIN.)
SEDIMENT FOREBAY
WEIR DETAIL
TOP OF
BERM WEIR LENGTH = 10'
- n z 7
600 TOP OF\
BERM
100 --YR WSE= 594.17 p EMERGENCY SPILLWAY
25 —YR WSE= 593.47 p 593.50
10 —YR WSE= 592.73 p
595 2 —YR 590.97 p
SIDE SLOPE 3:1 —
ELEV =B 2 -3" MULCH P
•''"Ni•�'�, °'p,`�Lda�'9''•� • o :y'•.::+u;+'rE.'•7'�"n`�.`; * �2�CT�A J; vY ;x��f��r�e,�"»FF�'*d„:..?''mw
; ULCH1_� 590 AND /30% TOPSOIL -.'_ �� t'11(SAND: 0.02 " - 0.04 , AS33 FINEM oim' N = a
585
GRADE PER PLAN VIEW
ELEV= 590.0
RIP -RAP -'
VEGETATED EMERGENCY SPILLWAY
WEIR DETAIL
-TOP OF
BERM WEIR LENGTH = 10'
y y
.v y
y y
y
y y y
y
y y
y y
y
• � %• y y y y y y y y y y y y y y .v y y y y y V
Lo EL
VEGETATED SPILLWAY
1
munug allmn \ 1%
\ Easment
I
N0.
A
B
C
Weir Length
l Filter rImPe
s ft
rea
(sq ft)
r r f t
Required s
rProvded
plants
1
585.5
589.3
595.0
20'
1,935
38,193
1,910
20
,! TOP STIFFENER (IF REQUIRED)
I( IS____X —X —ANGLE WELDED
/ TO TOP AND ORIENTED PER -
1 r, PENDICULAR TO CORRUGATIONS
I
1
ISOMETRIC
2 Anti — Vortex Trash Rack
C5 Not to Scale
TOP IS —GAGE CORRUGATED
METAL OR 1 /6" STEEL PLATE.
PRESSURE RELIEF HOLES MAY
BE OMMITTED, IF ENDS OF
CORRUGATIONS ARE LEFT FULLY
OPEN WHEN THE TOP IS
ATTACHED.
CYLINDER IS GAGE CORRUGATED
METAL PIPE OR FABRICATED FROM
STEEL PLATE.
NOTES;
1. THE CYLINDER MUST BE
FIRMLY FASTENED TO THE
TOP OF THE RISER.
2. SUPPORT BARS ARE WELDED
TO THE TOP OF THE RISER
OR ATTACHED BY STRAPS
BOLTED TO TOP OF RISER.
Not To Scale
PIPE OUTLET CONDITIONS
PIPE OUTLET TO FLAT
AREA WITH NO DEFINED
CHANNEL
L
TPMMI�F_" _T"_
SECTION A -A 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.
3 Outlet Protection (OP)
C5 Not to Scale
IPROVIDE PIPES
ACROSS ENTIRE WIDTH
iAT 20 FT O.C.
VEGETATED
FMFRGFNCY
ELEV =C
— CLEAN —OUT
W /WATERTIGHT CAP
CREST OF 24" CMP RISER
1.6' WEIR r=I 592.80
591.10
TR-
5 X 6" ORIFICE
/ T 24" CMP
4 " -6" NON — PERFORATED INV. OUT 585.50
PVC PIPE ® 1% MIN,
SLOPE
UNDERDRAIN GRAVEL
(AASHTO M43, 1/2 " -1 ")
WRAPPED IN FILTER FABRIC
BIOFILTER CROSS— SECTION
1 " =5'
BIOFILTER PLAN VIEW
1 " =20'
SECURE WIRE MESH
TO TIMBER
VDOT #3, #357, #5, #56 OR -
#57 COARSE AGGREGATE IN
GALVANIZED WIRE MESH BASKET
SECURE WIRE TO GROUND
WITH WIRE STAPLES
*FILTER CLOTH —�
7' MIN. UNDISTURBED
SOIL
3'
SLOPE 3:1
17' CLASS I
RIPRAP
6 "X6" TREATED
TIMBER
#5 REBAR TO
SECURE TIMBER
LEVEL SPREADER WITH RIGID LIP AND RIPRAP
r4" LEVEL SPREADER DETAIL
C5 Not To Scale
U
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11
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Date
10/8/2013
Scale
Sheet No.
C5 OF 5
File No.
13.021
NOTES:
1. THE
810- FILTER IS NOT TO BE
CONSTRUCTED UNTIL THE SITE IS ADEQUATELY STABILIZED.
2. THE
BIO- FILTER SOIL
MIX MUST
BE A STATE APPROVED MIX.
3. THE
BIO- FILTER SOIL
MIX MUST
BE STABILIZED WITH SOD OR NATIVE WILDFLOWER /NATIVE
GRASS
MIX, PLANTED IN
PLUGS OR
SEEDED, WITH HEAVY STRAW MULCH AND EC -2 MATTING.
, \ :1
(2),Bio—Filter
Detail
,! TOP STIFFENER (IF REQUIRED)
I( IS____X —X —ANGLE WELDED
/ TO TOP AND ORIENTED PER -
1 r, PENDICULAR TO CORRUGATIONS
I
1
ISOMETRIC
2 Anti — Vortex Trash Rack
C5 Not to Scale
TOP IS —GAGE CORRUGATED
METAL OR 1 /6" STEEL PLATE.
PRESSURE RELIEF HOLES MAY
BE OMMITTED, IF ENDS OF
CORRUGATIONS ARE LEFT FULLY
OPEN WHEN THE TOP IS
ATTACHED.
CYLINDER IS GAGE CORRUGATED
METAL PIPE OR FABRICATED FROM
STEEL PLATE.
NOTES;
1. THE CYLINDER MUST BE
FIRMLY FASTENED TO THE
TOP OF THE RISER.
2. SUPPORT BARS ARE WELDED
TO THE TOP OF THE RISER
OR ATTACHED BY STRAPS
BOLTED TO TOP OF RISER.
Not To Scale
PIPE OUTLET CONDITIONS
PIPE OUTLET TO FLAT
AREA WITH NO DEFINED
CHANNEL
L
TPMMI�F_" _T"_
SECTION A -A 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.
3 Outlet Protection (OP)
C5 Not to Scale
IPROVIDE PIPES
ACROSS ENTIRE WIDTH
iAT 20 FT O.C.
VEGETATED
FMFRGFNCY
ELEV =C
— CLEAN —OUT
W /WATERTIGHT CAP
CREST OF 24" CMP RISER
1.6' WEIR r=I 592.80
591.10
TR-
5 X 6" ORIFICE
/ T 24" CMP
4 " -6" NON — PERFORATED INV. OUT 585.50
PVC PIPE ® 1% MIN,
SLOPE
UNDERDRAIN GRAVEL
(AASHTO M43, 1/2 " -1 ")
WRAPPED IN FILTER FABRIC
BIOFILTER CROSS— SECTION
1 " =5'
BIOFILTER PLAN VIEW
1 " =20'
SECURE WIRE MESH
TO TIMBER
VDOT #3, #357, #5, #56 OR -
#57 COARSE AGGREGATE IN
GALVANIZED WIRE MESH BASKET
SECURE WIRE TO GROUND
WITH WIRE STAPLES
*FILTER CLOTH —�
7' MIN. UNDISTURBED
SOIL
3'
SLOPE 3:1
17' CLASS I
RIPRAP
6 "X6" TREATED
TIMBER
#5 REBAR TO
SECURE TIMBER
LEVEL SPREADER WITH RIGID LIP AND RIPRAP
r4" LEVEL SPREADER DETAIL
C5 Not To Scale
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Date
10/8/2013
Scale
Sheet No.
C5 OF 5
File No.
13.021