HomeMy WebLinkAboutWPO201300034 Plan - Approved 2013-05-09EROSION * SEDIMENT CONTROL PLAN FOR
15ELLARM I N E
TMF 05900 -00 -00 -03080
ALBEMARLE COUNTY, VIRGINIA
VICINITY MAP SCALE: 1"- 1,000
Source: Google Maps
SHEET INDEX
SHEET C I -COVER SHEET
SHEET C2 EROSION � SEDIMENT CONTROL NARRATIVE
SHEET C3 - SOIL TYPE, DRAINAGE DIVIDES AND SITE OVERVIEW
SHEET C4 - STREAM CROSSING DESIGN * MITIGATION
SHEET
C5
- EROSION
�
SEDIMENT
CONTROL
PLAN
SHEET
CG
- EROSION
*
SEDIMENT
CONTROL
PLAN
SHEET
C7
- EROSION
*
SEDIMENT
CONTROL
DETAILS
GENERAL CONSTRUCTION NOTES
1. Prior to any construction within any existing public right -of -war, 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 goverr:
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.O
4. All slopes and disturbed areas are to be fertilized, seeded and nulched. r
5. The maximum allowable slope is 2 :1 (horizontal: vertical). Where reasonably obtainable, lesser slopes of 3:1 or better are to be achieved. O,
6. Paved, rip-rap or stabilization mat lined ditch may be required k..-hen in the opinion of the Count Engineer, or designee, it is deemed necessary U
P P Y q P Y 9 9 Y �B'TIN M. SHIMP
in order to stabilize a drainage channel. Lic. �� f 183
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. �0 w
9. All excavation for underground pipe installation must comply with OSHA Standards for the Construction Industry (29 CFR Part 1926). SSIO L
_ NA
GENERAL CONSTRUCTION NOTES FOR
EROSION AND SEDIM FNT CONTROL PLANS
1. The plan approving authority must be notified one week prior to the pre- construction conference, one week prior to the commencement of land
disturbing activity, and one week prior to the final inspection.
2. All erosion and sediment control measures will be constructed and maintained according to minimum standards and specifications of the Virginia
Erosion and Sediment Control Handbook and Virginia Regulations VR 625 -02 -00 Erosion and Sediment Control Regulations.
3. All erosion and sediment control measures are to be placed prior to or as the first step in clearing.
4. A copy of the approved erosion and sediment control plan shay 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 eros ;un control plan to the owner for review and approval by the plan approving
authority.
6. The contractor is responsible for installation of any additional „ ..�sion 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 h approved filtering device.
9. The contractor shall inspect all erosion control measures perioc' ally 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 borr'* area.
11. All waste materials shall be taken to an approved waste area. Furth 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 Ibs /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. Fe; tiiizer 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 b)e 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)
PLAN NOTES:
Source of Boundary and Topography: Field Survey by Roger Ray & Associates, Inc.
Drainage Areas determined using topography from the Albemarle County GIS
APPROVED
by the Albemarle County
Community Development Department
Dote 3 -,5:ef Z013
File was Z5 01:9 Gczs3
FILE G- J-4111
This copy of the a�lnwoved plan i.
reserved for the c. Jai fllas of
Albemafla (;oust,. Pleases do nc:
remove this plan from the file.
PROJECT DESCRIPTION, GENERAL NOTES, EROSION &SEDIMENT CONTROL NOTES, AND SEQUENCE OF CONSTRUCTION
PROJECT DESCRIPTION
THIS 'SITE IS A VACANT RURAL AREA. THE PROPOSED USE IS A SINGLE FAMILY
RESIDENCE. THE PROJECT AREA INVOLVES A DRIVEWAY CONNECTION TO THE
PROPOSED RESIDENCE WITH A STREAM CROSSING.
THE TOTAL AREA OF DISTURBANCE IS 5.97 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. CONSTRUCTION OF STREAM CROSSING AND ADDING LANDSCAPING IN
ACCORDANCE TO STREAM BUFFER MITIGATION REQUIREMENTS.
5. ESTABLISHMENT OF PERMANENT STABILIZATION OF ALL DISTURBED AREAS.
EXISTING SITE CONDITIONS
THE SITE IS CURRENTLY A VACANT RURAL AREA.
ADJACENT PROPERTIES
THIS PROPERTY IS BORDERED TO THE NORTH BY VACANT RESIDENTIAL LAND, TO
THE EAST AND SOUTH BY RURAL PRESERVATION AREA, TO THE WEST BY A
SINGLE FAMILY RESIDENCE.
OFFSITE AREAS:
THERE ARE NO OFFSITE AREAS PROPOSED WITH THIS PROJECT.
SOILS
THE SITE CONTAINS THE FOLLOWING SOIL TYPES:
14C - Chester Loam - 7 to 15% Slopes
14D - Chester Loam - 15 to 25% Slopes
14E - Chester Loam - 25 to 45% Slopes
16 - Chewacla Silt Loam
20C3 - Cullen Clay Loam - 7 to 15% Slopes
36C - Hayesville Loam - 7 to 15% Slopes
37C3 - Hayesville Clay Loam - 7 to 15% Slopes
37D3 - Hayesville Clay Loam - 15 to 25% Slopes
41B - Hiwassee Loam - 2 to 7% Slopes
56B - Meadowville Loam - 2 o 7% Slopes
CRITICAL AREAS
THE PROPOSED STREAM CROSSING IS A CRITICAL AREA ON THIS SITE.
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. 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 PROVIDES LONG TERM SITE COVER.
3. DIVERSION DIKE: A RIDGE OF COMPACTED SOIL CONSTRUCTED AT THE TOP
OR BASE OF A SLOPING DISTURBED AREA WHICH DIVERTS OFF -SITE RUNOFF
AWAY FROM, UNPROTECTED SLOPES AND TO A STABILIZED OUTLET, OR TO
DIVERT SEDIMENT -LADEN RUNOFF TO A SEDIMENT TRAPPING STRUCTURE.
MAXIMUM EFFECTIVE LIFE IS 18 MONTHS. STD. AND SPEC. 3.09.
4. 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.
PERMANENT STABILIZATION AND SEQUENCE OF CONSTRUCTION
THE FOLLOWING ARE THE PROPOSED MANAGEMENT STRATEGIES AND DETAILED
SEQUENCE OF CONSTRUCTION:
STAGE 1
1. INSTALL CONSTRUCTION ENTRANCE.
2. INSTALL SILT FENCE, DIVERSIONS, AND TRAPPING MEASURES AT THE
LOCATIONS SHOWN ON THE EROSION & SEDIMENT CONTROL PLAN.
3. INSTALL CULVERTS 2 AND 3 AND CONVEYANCE CHANNEL AS SHOWN ON THE
PLANS.
STAGE 2
CONTACT THE ENGINEER AND ALBEMARLE COUNTY FOR INSPECTION AND
APPROVAL OF ALL E &S CONTROL MEASURES.
STAGE 3
1. UPON APPROVAL OF ALL E &S CONTROL MEASURES, DRIVEWAY CONSTRUCTION
MAY BEGIN.
2. MAINTAIN ALL E &S CONTROL MEASURES AND APPLY TEMPORARY SEEDING
AND DUST CONTROL AS NEEDED.
STAGE 4
ESTABLISH AND MAINTAIN PERMANENT STABILIZATION, INCLUDING VEGETATION OF
ALL SLOPES AND GRASSED AREAS.
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 MOTORIIZED EQUIPMENT WHEN NOT IN USE, AND
ACTIVELY CONTROLLING DUST EMISSIONS THROUGHOUT THE PROJECT.
EROSION & SEDIMENT CONTROL PERMITTING
CONTRACTOR SHALL BE RESPONSIBLE IFOR 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. 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.
2. WHEN WORKING ADJACENT TO EXISTING STRUCTURES, POLES, UTILITIES, ETC.,
THE CONTRACTOR SHALL USE WHATEVER METHODS THAT ARE NECESSARY TO
PROTECT STRUCTURES FROM DAMAGE. ANY DAMAGE CAUSED BY THE
CONTRACTOR OR ITS SUBCONTRACTORS SHALL BE THE CONTRACTOR'S SOLE
RESPONSIBILITY TO REPAIR OR REPLACE. THIS EXPENSE IS THE
CONTRACTOR'S RESPONSIBILITY.
3. REPLACEMENT OR REPAIR 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. ALL EXCAVATION FOR UNDERGROUND PIPE INSTALLATION MUST COMPLY WITH
OSHA STANDARDS FOR THE CONSTRUCTION INDUSTRY (29 CFR PART 1926).
8. THE CONTRACTOR SHALL VERIFY THE LOCATIONS OF ALL BOUNDARIES,
BUILDINGS, VEGETATION, AND OTHER PERTINENT SITE ELEMENTS. CONTRACTOR
SHALL IMMEDIATELY REPORT ANY DISCREPANCIES BETWEEN EXISTING
CONDITIONS AND CONTRACT DOCUMENTS TO THE OWNER AND ENGINEER.
9. 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 CONTRACTOR FROM THE
RESPONSIBILITY OF ADHERENCE TO THE CONTRACT AND FOR ANY ERROR
THAT MAY EXIST.
10.CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL NECESSARY
PERMITS, INSPECTIONS, BONDS, AND OTHER RELATED ITEMS IN ACCORDANCE
WITH LOCAL AND STATE POLICY.
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 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.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 reigulations.
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 too 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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Sheet No.
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File No.
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Plant Symbol
Planting Type
Botanical Name
Common Name
Min. Cal. /Height
Quantity
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Large Shade Tree
Species To Be Determined At The Time of Planting
"Albemarle County Plant List
1 Y2 " -1 3/4" Cal.
25
Medium Evergreen
4'- 5'H
25
See Approved
Shrub
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25
M TIGAT ON PLANTING CALCULATIONS
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Sheet No.
C6 OF 7
File No.
13.003
ENDWALL
PERMANENT SEEDING SPECIFICATIONS V c
A A
A Z
February 16 through April 30: w N w
Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre; ,. z
70' MIN EXISTING Annual Rye - 20 lbs/acre. Add 20 lbs/acre Indian grass when slopes 3
PAVEMENT are greater than 3:1. w
TOE OF FILL CULVERT A 3 3do I
lak�Anl d
May 1 through August 15: z 2
o Kentucky 31 Fescue - 128 lbs/acre; Red Top Grass - 2 lbs/acre;
"'rr� rl-� PIPE OUTLET TO FLAT Foxtail Millet - 20 lbs/acre. Add 20 lbs/acre Indian grass when slopes w a
° 6 "MIN. NTA BERM AREA WITH No DEFINED
FILTER A are greater than 3:1.
(OPTIONAL) CHANNEL D
CLOTH
EXISTING SECTION C -C PLAN VIEW August 16 through October 31:
Kentucky 31 Fescue - 128 Ibs /acre; Red Top Grass - 2 lbs/acre;
GROUND Annual Rye - 20 lbs/acre. Add 20 lbs/acre Indian grass on slopes
70' MIN
La greater than 3:1. ° ° z o % November 1 through February 15: - -
- Kentucky 31 Fescue 128 lbs/acre; Red Top Grass 2 lbs/acre; Winter
° o Rye - 20 lbs/acre. Add 20 lbs/acre Indian grass on slopes greater
TOE OF FILL r than 3:1.
SECTION A -A FILTER CLOTH KEY IN 6 " -9'; RECOMMENDED FOR ENTIRE PERIMETER j��1) 0
° ° MULCHING SPECIFICATIONS: N
z Straw or hay at a rate of 2 tons /acre. Must be anchored. Spread with �j
SILT FENCE ° ° * I EXISTIN >
mulch blower or by hand. >
DISTANCE IS 6' MINIMUM IF FLOW C� N PAVEMENT 3 OUT ET PROTECTION NO CHANNEL (OP) ~ N m
IS TOWARD EMBANKMENT
- C LIME AND FERTILIZER SPECIFICATIONS: j� W -
FLOW Not To Scale Lime and fertilizer needs should be determined by soil tests. Soil tests
Z1 may be preformed by the Cooperative Extension Service Soil Testing W a
Laboratory at VPI &SU, or by a reputable commercial laboratory. L
VDOT #1 o Information concerning the State Soil Testing Laboratory is available from N o
% ]�� % ]�% j %�% COARSE r County Extension Agents. Under unusual conditions where it is not
Ol O1 d A STONE 1 1 V 11 ON V AGGREGATE A possible to obtain a soil test, the following soil amendments will be
*MUST EXTEND FULL WIDTH d applied:
OF INGRESS AND EGRESS For Permanent Seeding: Seeded areas shall be limed at a rate of 2 tons
PLAN VIEW A per acre, and fertilized at a rate of 1,000 lbs. per acre of 10 -20 -10 (10
OPERATION lbs. per 1,000 square feet) or equivalent.
1.0' 1.5' For Temporary Seeding: Seeded areas shall be limed at a rate of 2 tons
12' MIN d o per acre, and fertilized at a rate of 600 lbs. per acre of 10 -20 -10 (10
�- lbs. per 1,000 square feet) or equivalent.f
PIPE OUTLET 0 WELL
DEFINED CHA NEL Q H
3 MIN PLAN VIEW 3do (MIN.) JUSLTIN o. 4SHIMP >
FLOW 25' ,_,��- 3 "MIN L a 5 PERMANENT SEEDING PS
C7 Not To Scale �0�,
FILTER CLOTH SECTION A -A o % �IV SIONAL ESC
VDOT #3, #357, #5, #56 OR #57 COARSE AGGREGATE CLASS I RIPRAP SECTION A -A
TO REPLACE SILT FENCE IN " HORSESHOE " WHEN FILTER CLOTH KEY IN 6 " -9'; RECOMMENDED FOR ENTIRE PERIMETER
HIGH VELOCITY OF FLOW IS EXPECTED NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION
(__2 Stone Construction Entrance CE BASKET, OR CONCRETE.
2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED � DIVERSIONS
1 PROTECTION (IP�Not To Scale USING PLATES 3.18 -3 AND 3.18 -4. ( d
C7 3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT
C7 Not To Scale LESS THAN 6 INCHES.
10% SETTLEMENT w
4 OUTLET PROTECTION TO CHANNEL (OP) 0.3' FREE BOARD
q7,)Not To Scale -
2 I
Compacted Soil -
1_6 (^�y
- - I�1111
18" min. p' o
-Flow_ ORIGINAL 1 Z ��++
Fillil GROUND
ELEV.
q9l 10111111 Milli I W11111 I -milli 112:111111 milli I Willi 110011111 W EL =A Area 2 1.0'
4.5 min. - DRY STORAGE p2 H
67 CU. YD. /ACRE N
EL =B Area 1
6 TEMPORARY DIVERSION DIKE DD WETSTORAGE
67 CU. YD. /ACRE
C7 Not To Scale D1
FILTER CLOTH ORIGINAL
(EXCAVATED) GROUND
Ditch Sections
Section
Lining
Channel
Channel
Channel
Side
2 -Yr
10 -Yr
DA
(Acs.)
Wet Vol.
(Req.)
Depth
Width
Slope
Velocity
Depth
1
EC-2
1 484
482.5
1 2
1
1
SCC 1
Matting
1.5
6
2:1
3.9000
0.9000
2
EC-2
500.9
497.9
3.1
1.5
14
SCC 2
Matting
1.5
6
2:1
3.5800
0.6220
3
EC-2
520
516.5
2.75
1.5
3
SCC 3
Matting
1.5
6
2:1
3.1800
1.0420
EC-2
hand.
Wood Chips
4 - 6 tons
185 - 275 lbs.
Free of coarse matter. Air -
SCC 4
Matting
1.5
6
2:1
3.9600
0.8600
�� O
TYPICAL VEE- SHAPED DIVERSION
O
v1
O O
11 CLEAN WATER DIVERSION (CWD
C7 Not To Scale W
EL =C ELEV.
*SEE PLATE 3.13 -1 COARSE AGGREGATE CLASS I RIPRAP
�- Width - I
CROSS SECTION OF OUTLET Matting
1. SET THE STAKES. 2. EXCAVATE A 4 "X 4" TRENCH
UPSLOPE ALONG THE LINE OF CLASS I RIPRAP II = -TI�= Depth
f I -III e - III -I I !-
STAKES. LENGTH (IN FEET) _ =III =� cede III -II-
6 X DRAINAGE AREA I lTf - I-
6'MAX. (IN Ac.) II -III= I =III -I
DIVERSION
DIKEI�I I II=
FLOW/ 1= �® 9 TYPICAL DITCH SECTION DETA L
� �
4„
3. STAPLE FILTER MATERIAL 4. BACKFILL AND COMPACT l / ^�-
J ' SECURE WIRE MESH
TO STAKES AND EXTEND THE EXCAVATED SOIL. **
IT INTO THE TRENCH. COARSE AGGREGATE // TO TIMBER
EXCAVATED FILTER CLOTH VDOT #3, #357, #5, #56 OR 6 "X6" TREATED
AREA --�'' #57 COARSE AGGREGATE IN TIMBER
GALVANIZED WIRE MESH BASKET
#5 REBAR TO
SECURE WIRE TO GROUND SECURE TIMBER
COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5 WITH WIRE STAPLES /
FLOW f11=
OUTLET (PERSPECTIVE VIEW) *FILTER CLOTH GRASS -LINED
SWALE
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
485
1 484
482.5
1 2
1
1
0.17
11.4
1.5
11.4
11.4
1
11.4
2
503
500.9
497.9
3.1
1.5
14
2.41
161.5
3.0
162.0
161.5
2.1
166.3
3
521.75
520
516.5
2.75
1.5
3
0.55
36.9
3.5
38.1
36.9
1.75
38.6
jam / /�� /����� / %� /�% \��%
7 MIN. UNDISTURBED 3
SOIL
ORGANIC MULCH MATERIALS AND APPLICATION RATES
RATES:
MULCHES:
NOTES:
Per Acre
Per 1000 s ft
q•
Straw or Hay
1 - 2 tons
70 - 90 lbs.
Free from weeds and coarse
(Minimum 2
matter. Must be anchored.
tons for
Spread with mulch blower or
winter cover)
by hand.
Fiber Mulch
Minimum
35 lbs.
Do not use as mulch for
1500 lbs.
winter cover or during hot,
dry periods.* Apply as
slurry.
Corn Stalks
4 - 6 tons
185 - 275 lbs.
Cut or shredded in 4 -6"
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 451bs. /1000 sq. ft.
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Date
08/26/2013
POINTS A SHOULD BE HIGHER THAN POINT B.
Source: Va. DWSC ca e
DRAINAGEWAY INSTALLATION N /A
(FRONT ELEVATION) B SEDIMENT TRAP ST 10 LEVEL SPREADER DETAIL (__12M2 ULCHING (MLI) S heet No.
7 SILT FENCE (SF) C% Not To Scale C7 Not To Scale C7 Not To Scaie C7 OF 7
C File No.
7 Not To Scale
13.003