HomeMy WebLinkAboutWPO202200016 Plan - VSMP 2022-04-22Erosion and Sediment Control Narrative For:
2628 Penny Lane
TM 89 Parcel 53C
Albemarle County, VA
HUC: MOORES CREEK 020802040402
LAT: 37.964902N LONG: 78.550073W
Project Description: The proposed work involves the removal of trees and fine
grading to expand the yard of an existing residence. The project area is on
the west side of Penny Lane, just south of Old Lynchburg Rd. The total area
of the parcel is 10.822 acres. The total on -site disturbed area is
approximately 1.29 acres. There is no increase in impervious area. Work will
begin in Spring of 2022.
Erosion control measures shown will protect the stream and property below
from receiving silt -laden runoff.
Existing Site Conditions: The project site area is in an open field and generally
slopes to the south at 5 to 10%. The overall pre and post drainage patterns
will be the same.
Adjacent Property: The property is surrounded by large residential lots and
wooded areas.
Off -site Areas: No off -site areas will be involved in this project.
Soils: 27B-Elioak loam, 0.28 K-Factor, Group B soil
Critical Erosion Areas: There are no critical erosion areas in the project area.
Soil Stockpiles: No mass grading is proposed, thus a stockpile will not be
utilized.
Erosion and Sediment Control Measures:
Unless otherwise indicated, all vegetative and structural erosion and sediment
control practices will be constructed and maintained according to minimum
standards and specifications of the Virginia Erosion and Sediment Control
Handbook. Additional measures may be required during construction by the
Erosion Control Inspector, as needed.
Structural Practices:
Construction Entrance: (CE) 3.02 (To be installed where construction site
traffic exits the project area, to remove soil from tires prior to travel on
public roads. The contractor shall clean and maintain the travelway as
required to keep soil from washing into unprotected areas and to provide a
safe surface for pedestrian and vehicular access. The Construction Entrance will
be located within the footprint of the existing building to protect the adjacent
paved travelways. Once the building is erected, all adjacent areas will be
stabilized and the construction entrance will no longer be necessary.)
Silt Fence: (SF) 3.05 Silt fence (wire -supported) shall be constructed along
the lower limit of graded areas. (To be installed as shown on the plan,
down -gradient of disturbed areas created by the proposed work, and above
the proposed excavation to prevent up -gradient runoff from crossing disturbed
areas. )
Permanent Seeding (PS) 3.32 Establishment of perennial vegetative cover
by planting seed where permanent, long-lived vegetative cover is needed on
fine -graded areas. (Permanent seeding will be provided on all disturbed areas
designated to be landscaped on the site plan within 7 days of final grading.)
Mulching (MU) 3.35 Application of plant residues to disturbed surfaces to
prevent erosion and reduce overland flow. Apply to all seeded areas. Refer to
Table 3.35-A on Sheet C-3.3 for application rates. (To be installed along with
Permanent Seeding)
Dust Control (DC) 3.39 Reducing surface and air movement of dust during
land disturbance, demolition or construction activities in areas subject to dust
problems in order to prevent soil loss and reduce the presence of potentially
airborne substances. (To be installed, if required by the County, where
disturbed soil is to remain unprotected for an extended period. )
Vegetative Practices:
Temporary Seeding 3.31: All areas disturbed by construction that will not be
brought to final grade for a period of more than 14 days, will be stabilized
by establishing a good stand of grass.
Lime 3.31: Unless it is known that the site will remain undisturbed for
man months lime is not necessary. If necessary, the amount will be
Y ry ry.
determined by Soil Test, or 3 tons per acre of pulverized agricultural
limestone, uniformly applied to surface to be seeded during seedbed
preparation and incorporated into the top 2-4 inches of soil.
Fertilizer 3.31: 600 pounds per acre of 10-20-10 or equivalent, uniformly
applied to the surface to be seeded during seedbed preparation and
incorporated into the to 2-4 inches of soil.
P P
Surface roughening 3.31: Where disturbed soils have been compacted,
loosen soils by discing, raking, or whatever acceptable means available to
receive seed.
Seed 3.31: Seed shall be broadcast evenly and planted from X to �'A inch
deep. Seasonal seed selection shall be as follows:
• Sept.
1 - Feb. 15:
50/50 Mix of Annual Rye and Winter Rye, 50-100
Ib/ac.
• Feb.
16 - April 30:
use Annual Rye,
60-100 Ib/ac.
• May
1 - Aug. 31:
use German Millet,
50 Ib/ac.
Areas which fail to establish vegetative cover
adequate to prevent rill erosion
will be
reseeded as soon as such areas
are identified.
2628 Penny Lane
W P02022-0001 6
Management Strategies: Construction should be sequenced so that grading
operations can begin and end as quickly as possible. Areas that are not to
be disturbed shall be clearly marked by the placement of the erosion control
measures prior to construction. The job superintendent shall be responsible for
the installation and maintenance of all erosion and sediment measures.
Where construction vehicle access routes intersect paved public roads,
provisions shall be made to minimize the transport of sediment by vehicular
trackingonto the paved surface. Where sediment is transported onto a public
P P
road surface, the road shall be cleaned thoroughly at the end of each day.
Sediment shall be removed from the roads 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.
Stabilization of Denuded Areas and Soil Stockpiles: Permanent or temporary
soil stabilization must be applied to denuded areas within 7 days after final
grade is reached on any portion of the site. Temporary soil stabilization shall
be applied within 7 days to denuded areas which may not be at final grade
but will remain dormant (undisturbed) for longer than 14 days. Permanent
stabilization shall be applied to areas that are to be left dormant for more
than one year.
Soil stabilization refers to measures that protect soil from the erosive forces
of raindrop impact and flowing water. Applicable practices include vegetative
establishment, mulching and the early application of gravel base on areas to
be paved. Soil stabilization measures should be selected to be appropriate for
the time of year, site conditions and estimated duration of use.
Timing and Stabilization of Sediment Trapping Measures:
Sediment barriers 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. Stabilization measures shall be applied to earthen
structures such as dams, dikes, and diversions immediately after installation.
Disposal of Temporary Measures: All temporary erosion and sediment control
P P rY P rY
measures shall be removed within 30 days after final site stabilization or after
the temporary measures are no longer needed, unless otherwise authorized by
the local program administrator.
Trapped sediment and the disturbed soil areas resulting from the disposition of
temporary measures shall be removed and replaced with suitably compacted
soils, or, where applicable, permanently stabilized to prevent further erosion and
sedimentation.
Maintenance: All erosion and sediment control structures and systems shall be
maintained, inspected, and repaired weekly and after each significant rainfall or
as needed to insure continued performance of their intended function. Any
damage to structural measures shall be repaired immediately.
Silt fence shall be inspected after every rainfall event and at least daily during
prolonged rainfall, as well as at the end of every working day, with any
necessary repairs made immediately. Accumulated sediment shall be removed
and disposed of as it becomes necessary, or when deposits have accumulated
to one-half of the above ground fence height. All undercutting or erosion shall
be repaired immediately. the contractor shall follow all manufacturers
recommendations for installation, maintenance, replacement, and repair.
damages caused by construction traffic or other activity must be repaired
before the end of each working day.
All seeded areas are to be checked to insure a good stand is maintained.
General construction notes for Erosion and Sediment Control plans
1. The plan approving authority must be notified one week prior to the
pre-constructionconference, one week prior to the commencement of land
disturbing activity, and one weekprior 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 Eproducing rainfall event. Any necessary repairs or cleanup to
maintain the effectiveness of the erosion control devices shall be made
immediately.
10. All fill material to be taken from an approved, designated borrow area.
11. All waste materials shall be taken to an approved waste area. Earth fill
shall be inert materials only, free of roots, stumps, wood, rubbish, and other
debris.
12. Borrow or waste areas are to be reclaimed within 7 days of completion per
Zoning Ordinance section 5.1.28.
13. All inert materials shall be transported in compliance with section 13-301
of the Code of Albemarle.
14. Borrow, fill or waste activity involving industrial -type power equipment shall
be limited to the hours of 7:00am to 9:00pm.
15. Borrow, fill or waste activity shall be conducted in a safe manner than
maintains lateral support, or order to minimize any hazard to persons, physical
damage to adjacent land and improvements, and damage to any public street
because of 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. 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.
MINIMUM STANDARDS
MS-1 Permanent or temporary soil stabilization must be applied to denuded
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
(undisturbed) for longer than 15 days. Permanent stabilization shall be
applied to areas that are to be left dormant for more than one year. Soil
stabilization refers to measures which protect soil from the erosive forces of
raindrop impact and flowing water. Applicable practices include vegetative
establishment, mulching, and the early application of gravel base on areas to
be paved. Soil stabilization measures should be selected to be appropriate
for the time of year, site conditions and estimated duration of use.
MS-2 Duringconstruction of the project, soil stockpiles and borrow areas shall
P 1 � P
be stabilized or protected with sediment trapping measures. The applicant is
responsible for the temporary protection and permanent stabilization of all
soil stockpiles on site as well as borrow areas and soil intentionally
transported from the project site.
MS-3 A permanent vegetative cover shall be established on denuded areas not
otherwise permanently stabilized. Permanent vegetation shall not be
considered established until a ground cover is achieved that, is uniform,
mature enough to survive and will inhibit erosion.
MS-4 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.
MS-5 Stabilization measures shall be applied to earthen structures such as
dams dikes traps, basins and diversions immediate) after installation.
P� Y
MS-6 Surface runoff from disturbed areas that is comprised of flow from
drainage areas greater than or equal to three acres shall be controlled by a
sediment basin. The sediment basin shall be designed and constructed to
accommodate the anticipated sediment loading from the land disturbing
activity. The outfall device or system design shall take into account the
total drainage area flowing through the disturbed area to be served by the
basin.
MS-7 Cut and fill slopes shall be constructed in a manner that will minimize
erosion. Slopes that are found to be eroding excessively within one year of
permanent stabilization shall be provided with additional slope stabilizing
measures until the problem is corrected.
MS-8 Concentrated runoff shall not flow down cut or fill slopes unless
contained within an adequate temporary or permanent channel, flume, or
slope drain structure.
MS-9 Whenever water seeps from a slope face, adequate drainage or other
protection shall be provided.
MS-10 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.
MS-11 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.
MS-12 through 15 - Not applicable, no live watercourses.
MS-16 Underground utility lines shall be installed in accordance with the
following standards in addition to other applicable 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 from dewatering operations shall be filtered or passed through an
approved sediment trapping device, or both, and discharged in a manner
that does not adversely affect flowing streams or off -site property.
d. Restabilization shall be accomplished in accordance with these regulations.
e. Applicable safety regulations shall be complied with.
MS-17 Where construction vehicle access routes intersect paved public roads,
provisions shall be made to minimize the transport of sediment by vehicular
tracking onto the paved surface. Where sediment is transported onto a
public road surface, the road shall be cleaned thoroughly every four hours.
Sediment shall be removed from the roads 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.
MS-18 All temporary erosion and sediment control measures shall be removed
within 30 days after final site stabilization or after the temporary measures
are no longer needed, unless otherwise authorized by the local program
administrator. Trapped sediment and the disturbed soil areas resulting from
the disposition of temporary measures shall be permanently stabilized to
prevent further erosion and sedimentation.
MS-19 Channel Protection - There is no change in impervious area or drainage
divides.
L
VICINI
TY MAP
SCALE: 1 "=2,000'
GENERAL EROSION AND SEDIMENT CONTROL NOTES
ES-1: UNLESS OTHERWISE INDICATED, ALL VEGETATIVE AND STRUCTURAL
EROSION AND SEDIMENT CONTROL PRACTICES WILL BE CONSTRUCTED AND
MAINTAINED ACCORDING TO MINIMUM STANDARDS AND SPECIFICATIONS OF
THE VIRGINIA EROSION AND SEDIMENT CONTROL HANDBOOK AND VIRGINIA
REGULATIONS VR 625-02-00 EROSION AND SEDIMENT CONTROL
REGULATIONS.
ES-2: THE PLAN APPROVING AUTHORITY MUST BE 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.
ES-3: ALL EROSION AND SEDIMENT CONTROL MEASURES ARE TO BE
PLACED PRIOR TO OR AS THE FIRST STEP IN CLEARING.
ES-4: A COPY OF THE APPROVED EROSION AND SEDIMENT CONTROL
PLAN SHALL BE MAINTAINED ON THE SITE AT ALL TIMES.
ES-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.
ES-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.
ES-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.
ES-8: DURING DEWATERING OPERATIONS, WATER WILL BE PUMPED INTO
AN APPROVED FILTERING DEVICE.
ES-9: THE CONTRACTOR SHALL INSPECT ALL EROSION CONTROL
MEASURES PERIODICALLY AND AFTER EACH RUNOFF -PRODUCING RAINFALL
EVENT. ANY NECESSARY REPAIRS OR CLEANUP TO MAINTAIN THE
EFFECTIVENESS OF THE EROSION CONTROL DEVICES SHALL BE MADE
IMMEDIATELY.
THE RLD IS RESPONSIBLE FOR ONGOING MAINTENANCE AND OPERATION
OF THE E&SC PLAN.
FOR THE PURPOSES OF PLAN SUBMITTAL, REVIEW AND APPROVAL, THE
RLD IS B. CLARK GATHRIGHT, P.E.
SEQUENCE OF CONSTRUCTION
1. Install Construction Entrance and silt fence where shown on the plan.
2. Clear and grub trees. perform fine grading as required to restore an even
surface.
3. If the site will remain dormant for more than 15 days, provide temporary
seeding measures to stabilize the surface.
4. Apply mulching and permanent seeding on all permanently stabilized areas.
5. Remove silt fence after all disturbed areas are stabilized.
SITE
APPROVED
by the Albemarle County
Community Development Department
Date 04/22/22
File WP0202200016
SITE DATA:
OWNER:
Gino DiFiore
2628 Penny Lane
Charlottesville, VA 22906
LOCATION:
2628 PENNY LANE
TM 89 PARCEL 53C
ALBEMARLE COUNTY, VA
MAGISTERIAL DISTRICT: SAMUEL MILLER
PLAN PREPARED BY:
B. CLARK GATHRIGHT, P.E.
100 10TH ST NE SUITE 200
CHAR LOTTESVI LLE, VA 22902
TOTAL PARCEL AREA: 10.882 AC.
ZONING: RA
SOURCE OF TOPOGRAPHY:
ALBEMARLE COUNTY GIS
9:iiPj:11111111A:a2060=IV21*M[oil 21171► OW114I
DISTURBED AREA: 1.29 ACRES
EXISTING IMPERVIOUS SURFACE: 0.144 ACRE
NEW IMPERVIOUS SURFACE: 0 ACRE
WATER QUANTITY:
CONVERSION OF THE FORESTED AREA TO MANAGED
TURF WILL NOT CAUSE OR CONTRIBUTE TO
EROSION, SEDIMENTATION, OR FLOODING OF DOWN
GRADIENT PROPERTIES OR RESOURCES.
WATER QUALITY: THE SWM AGREEMENT ADDRESSES
THIS, NO ADDITIONAL INFORMATION REQUIRED.
CRITICAL SLOPES: NO CRITICAL SLOPES IN THE
PROJECT AREA.
TIMING OF CONSTRUCTION: SPRING 2022
DRAWING INDEX
1 C-3.0 TITLE SHEET & EROSION AND SEDIMENT CONTROL NARRATIVE
2 C-3.1 EROSION AND SEDIMENT CONTROL & SWPPP PLAN
3 C-3.2 EROSION AND SEDIMENT CONTROL DETAILS
E
O
N
U
O
0)
Uj
r-
N
N
U
U Q
0)
J z
�
J O (D
- O
N
L
(�
C J
(10 LJJ
�
f z LJJ
V
1 C/)
O
c O O
~
U CD �
�
CDU
CY)
m
H of D
OB. CLARK GATHRIGHT Z
U Lic. No. 03 3
�SSIONAL��
UJ
/_
Q
Q
Z
J
0
Z
0
U
W
LU
c
J
UJ
Q
�U �
co
LO
�x
W
Z
O
Q
U
w
w
Z
a)
O0rn�
�O
CN 00 E
w
cn
O
N Q
�
W
REVISIONS:
04-21-2022
DATE:
04-04-2022
DRAWING NUMBER:
C-10
SHEET 1 OF 3
LINETYPE & SYMBOL LEGEND
EXISTING CONTOUR LINE
PROPERTY BOUNDARY
LIMIT OF GRADING
SOIL TYPE 8
SOILS NOTE:
THE SOILS BOUNDARIES ARE BEYOND
THE LIMITS OF THIS PLAN.
SWPPP NOTE:
THE USE OF CHEMICALS/SOLVENTS IS
NOT ANTICIPATED.
— LOT 4 1
Rav
racrb
SEE 1 /C-3.1
CONSTRUCTION ENTRANCE 3.02
Q
SILT FENCE 3.05
O—X-X
PERMANENT SEEDING 3.32
PS
MULCHING 3.35
DUST CONTROL 3.39
ro U.U.
LOT 6.
LOT 5
EXIST" R R 1 +
ad 47S sL,y 41
J•1T26"E 548.15'
Fa
F
1i
is 11
13p�oo"
ji
7-33 00 1 ;t
1
1 N
i
/0. 820 A CRES
1 ; .FE '
� 11
C-,Irso �"C F3.oKE
T.Al 89 PAR. 53C r`
D.B. 727 P. 489 /r
D.B. 423 P. 474
D.B. 169 P. 2(PLAT) ;
,/ Taro
L 1
F ,
ti ryw ,
'aei 60 i,/ 2p Tilt 89 PAR. 93
QY , / � BLUE WHEEL, INC.
o,]v aZE
P' ', / PPEhti C.NrI1443 co f��
�/'l.:
,.
+yA, % h�F o
le' MAPLE
/
I "•'
BOUNDARY SURVEY SHOWING
ON
PARCEL 53C
;;-
TAX MAP. .89 IN
AN
rk
SCOTTSVILLE DISTRICT
ALBEMARLE COUNTY, VIRGINIA
SCALE : 1" _' 100' II14188
Gory A WhelonLand
hyor
Charlpllssyfflo, Wrenla
POKAR M STREAAr
BAW AT 102 11
F
STREAM
~ i "r-
m FDIAA7
vcfi :
TA 89 PAR. 96 °'
SCALEsIN FEET
RtCHARD GLENN PROUTT;
, r
09. 708 P. 20111177
°
PARCEL PLAT EROSION & SEDIMENT CONTROL PLAN
SCALE: 1''= 100'-0" 1 C-3.1 SCALE: 1'' = 30'-0''
4' CONTOUR INTERVAL
SOURCE OF TOPOGRAPHY: COUNTY GIS
E
0
CV
0
O
O
uj
c—
N
U Q
co'
J Z
�
J O C7
CV
>_
-
LI J
�
L ) J
W C7
fCa
V Z Lu
U
clq
O
co c- 0
U CD
�
o
m U
TH of
P
OB. CLARK GATHRIGHT
U Lic. No. 03 3 a
O�r -�1. •Z
� Ol�,r��
SIGNAL
Z
J
O
Z
O
^+
W
�
ca
w
J
:E
Q
�U >
Q
Lo
:3V)
0 U
06
am
Z
O
OOcy)m
N °0 E
0V)
N
w
REVISIONS:
DATE:
04-04-2022
DRAWING NUMBER:
C-301
SHEET 2 OF
3
STONE CONSTRUCTION ENTRANCE
GROUND
70' MIN.
A
FILTER CLOTH- 6" MIN.1 A 1
SIDE ELEVATION
12' MIN,*
70' MIN.
B WASHRACK
F- (OPTIONAL)
L VDOT #1 I 1 �� POSITIVE DRAINAGE
COURSE AGGREGATE B TO SEDIMENT
TRAPPING DEVICE
* MUST EXTEND FULL WIDTH PLAN VIEW
OF INGRESS AND EGRESS
OPERATION
SECTION A -A
EXISTING
PAVEMENT
5:1 Y
MOUNTABLE BERM
(OPTIONAL)
LICHIIV Jr HLL
SECTION B-B
SOURCE: ADAPTED from 1983 Maryland Standards for Soil erosion and Sediment Control, and Va. DSWC Plate 3.02-1
3 CONSTRUCTION ENTRANCE DETAILS
3.2 SCALE: NONE
STONE 70' MIN.
CONSTRUCTION
ACCESS 3" SM-2A ASPHALT TOP
COURSE
2% 2%
STONE
CONSTRUCTION
ACCESS —\
�6" MN. 2'A AGGREGATE BASE
PROFILE
70' MIN.
n ASPHALT PAVED
`lJ `WASHRACK
% 1 2%
I2% 12' MIN.*
I
PAVEMENTI
EXISTING
t POSITIVE DRAINAGE
*MUST EXTEND FULL WIDTH L-►Q TO SEDIMENT
OF INGRESS AND EGRESS OPERATION TRAPPING DEVICE
PLAN
—12' MIN. POSITIVE DRAINAGE
2% TO SEDIMENT
TRAPPING DEVICE
FILTER CLOTHS -
SECTION A -A
A nu inuun water tap of 1 inch must be installed with a uvui►muu 1 itch ballcock
shutoff vaI supplyvna a wash hose with a diameter of 1.5 inches for adequate
constant pressure. Wash water must be carried away from the enhance to an
approved settling area to remove sediment. All sediment shall be prevented from
entei*R storm drains, ditches or watercourses.
PAVED WASH RACK
NO SCALE
ALT: PAVED WASH RACK, IF REQUIRED BY COUNTY E&SC INSPECTOR
CONSTRUCTION OF A SILT FENCE
(WITH WIRE SUPPORT)
1. SET POSTS AND EXCAVATE A 4"X4" 2. STAPLE WIRE FENCING TO THE POSTS,
TRENCH UPSLOPE ALONG THE LINE
OF POSTS.
3. ATTACH THE FILTER FABRIC TO THE WIRE
FENCE AND EXTEND IT INTO THE TRENCH.
µ
4. BACKFILL AND COMPACT THE
EXCAVATED SOIL.
FLewj�C
EXTENSION OF FABRIC AND WIRE INTO THE TRENCH.
SOURCE: Ada led from Installation of Straw and Fabric Filter Barriers for Sediment Control,
Sherwood & WVanl
3 SILT FENCE DETAILS
-3.2 SCALE: NONE
PLATE. 3.05-1
TABLE 3.32-C
SITE SPECIFIC SEEDING MIXTURES
FOR APPALACHIAN/MOUNTAIN AREA
Total Lbs.
Minimum Care Lawn Per Acre
- Commercial or Residential 200-250 lbs.
- Kentucky 31 or Turf -Type Tall Fescue 90-100%
- Improved Perennial Ryegrass * 0-10%
- Kentucky Bluegrass 0-10%
High -Maintenance Lawn
Minimum of three (3) up to five (5) varieties
of bluegrass from approved list for use in Virginia. 125 lbs.
General Slope (3:1 or less)
- Kentucky 31 Fescue 128 lbs.
- Red Top Grass 2 lbs.
- Seasonal Nurse Crop * * 20 lbs.
150 lbs.
Low -Maintenance Slope (Steeper than 3:1)
- Kentucky 31 Fescue 108 lbs.
- Red Top Grass 2 lbs.
- Seasonal Nurse Crop" * 20 lbs.
- Crownvetch * * * 20 lbs.
150 lbs.
* Perennial Ryegrass will germinate faster and at lower soil temperatures than
fescue, thereby providing cover and erosion resistance for seedbed.
** Use seasonal nurse crop in accordance with seeding dates as stated below:
March, April through May 15th .................... Annual Rye
May 16th through August 15th .................... Foxtail Millet
August 16th through September, October ............. Annual Rye
November through February ...................... Winter Rye
* * * If Flatpea is used, increase to 301bs./acre. All legume seed must be properly
inoculated. Weeping Lovegrass may also be included in any slope or low -
maintenance mixture during warmer seeding periods; add 10-201bs/acre in mixes.
O
04 U
O
M N
C—
N
CV
U Q ca'
J z �
J o C7
NCq
L
��. w -I-1
co
L J
C— U) J 0
w U)
C(a
V LU
U) O
i Camp
U o � 00
CD
o
m U
H of
OB. CLARK GATHRIGHT Z
� LI� 03 3 a
sSIONAL�
V)
J
Q
LU
0
I
O
Z
O
U
^+
W
LU
J
�
Q
�U
C)
w
to �
c)
� U
Z
W
00 rn M
N °° E
v)
��O
N �Q
w
REVISIONS:
DATE:
04-04-2022
DRAWING NUMBER:
C-302
SHEET 3 OF 3