HomeMy WebLinkAboutNCC230029_Site Plan or Location Map_20230105Steel Post
Wire ties
8' Max. Standard Strength fabric with wire fence Wire
6' Max. Extra strength fabric without wire fence Wire Fen ce
Steel Post
18 24"
pq.,
1 8" down & 4" forward along the tr nch
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Filter Fabric
Construction: CROSS SECTION VIEW
1. Construct the sediment barrier of standard strength or extra strength synthetic filter fabrics.
2. Ensure that the height of the sediment fence does not exceed 24 inches above the ground. (Higher fences may impound volumes of water
sufficient to cause failure of the structure) Maintenance:
3. Construct the filter fabric from a continuous roll cut to the length of the barrier to avoid joints. When joints are necessary, securely fasten the 1 Inspect sediment fences at least once a week and after each 1 inch or greater
filter cloth only at a support post with 4 feet minimum overlap to the next post. rainfall. Make any required repairs immediately.
4. Support standard strength filter fabric by wire mesh fastened securely to the upslope side of the posts. Extend the wire mesh support to the 2 Should the fabric of a sediment fence collapse, tear, decompose, or become
bottom of the trench. Fasten the wire reinforcement, then fabric on the upslope side of the fence post. Wire or plastic zip ties should have a ineffective, replace tt promptly.
minimum 50 pound tensile strength. 3. Remove sediment deposits as necessary to provide adequate storage volume
5. When a wire mesh support fence is used, space posts a maximum of 8 feet apart. Supports should be driven securely into the ground a for the next rain and reduce pressure on the fence. Take care to avoid
minimum of 24 inches. undermining the fence during cleanouts.
6. Extra strength filter fabric with 6 foot post spacing does not require a wire mesh support fence. Securely fasten the filter fabric directly to posts. 4 Remove all fencing materials and unstable sediment deposfts and bring the
Wire or plastic zip ties should have a minimum of 50 pound tensile strength. area to grade and stabilize tt after the contributing drainage area has been
7. Excavate the trench approximately 4 inches wide and 8 inches deep along the proposed line of the posts and upslope from the barrier. properly stabilized.
8. Place 12 inches of fabric along the bottom and side of the trench.
9. Backfill the trench with soil placed over the filter fabric and compact. Thorough compaction of the backfill is critical to silt fence performance.
10. Do not attach filter fabric to existing trees.
MAINTENANCE OF EROSION AND SEDIMENTATION CONTROL MEASURES FOR LOT CONSTRUCTION
General - All measures will be inspected and corrections made after runoff producing rainfalls, or at least once per week minimum. The builder will insure that the
construction activities on any particular lot do not adversely affect any of the installed erosion control measures. If lot construction dictates, measures will be
relocated on the lot to insure that the potential for sedimentation runoff is eliminated as much as possible. Silt fences and gravel construction entrances will
be maintained as suggested in the erosion control manual. Sodding, seeding and mulching will be maintained to insure proper ground stabilizing cover.
Gravel Construction Entrance - The gravel pad should remain in a condition to prevent mud or sediment from leaving the construction site. This may require
periodic topdressing with 2-inch stone. After each rainfall, inspect any structure used to trap sediment and clean it out as necessary. Immediately remove
all objectionable materials spilled, washed, or tracked onto public roadways.
Silt Fence - Sediment fences should be inspected at least once a week and after each rainfall event. Any repairs should be made immediately. Damaged or
decomposed fabric should be replaced promptly. Any sediment deposits that build up against the fence should be removed and disposed of properly to
insure that the removed sediment does not wash back against the fence. Adequate storage volume should be provided for behind the fence at tall times.
Take care to not undermine the fence during cleanout operations.
Sodding - The sod should be properly maintained to insure that the grass take holds in the areas being secured. The sod should be watered as necessary to
maintain adequate moisture in the root zone and prevent dormancy of the sod. The sod should not be mowed to close, since this could inhibit adequate
growth and stabilization of the root bed. The sod should be limed and fertilized as per soil type recommendations and type of grass recommendations when
and if possible.
Grassing and Mulching - The area to receive grassing and mulching should be properly fertilized and limed as necessary as an initial step in soil preparation.
Once the grassing has been placed, the area should be maintained as needed to insure that all areas are germinating properly. Any bare areas should be
repaired, and reseeded as soon as possible. If the time of year does not permit the establishment of a permanent grass, then a temporary grassing should
be used until the growing season permits the use of a permanent grass.
Wattles - Wattles shall be inspected after significant rainfall events. Rills or gullies upslope of the wattle and any undercutting is to be repaired. Sediment deposits
that impair the filtration capability of the wattle shall be removed when the sediment reaches one-third of the wattles functional freeboard height. Removed
sediment shall be deposited within the project in such a way that the sediment is not subject to erosion by wind or water.
Reinforced Silt Fence Outlet - Remove sediment deposits as necessary to provide adequate storage volume for the next rain to reduce pressure on the
fence/outlet. Take care to avoid undermining the fence during cleanout. Remove and replace stone as necessary as it becomes clogged with sediment.
Remove all fencing materials and unstable sediment deposits and bring the area to grade and stabilize it after the contributing drainage area has been
properly stabilized.
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SILT FENCE
Filter Fabric PA GE'
\ Backfill trench
/1 and Compact
thoroughly
I _
1 Upslope
4 I♦
Min:
8" Min.
I
DA TE: PAGE:
u 4' MIN. SILT FENCE
TOP OF SILT FENCE
MUST BE AT LEAST
ABOVE THE TOP OF
THE WASHED STO
STEEL FENCE P ST
WIRE FEN
HARDWARE CIL TH
FILTER OF
WASHED STONE,
BURY WIRE FENCE AND HARDWWE CLOTH
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ffittfl
FRONT VIEW
BURY WIRE FENCE,
FILTER FABRIC,
AND HARDWARE
STEEL FENCE PO(;T CLOTH IN TRENCH
SET MAX 2' APART
MIN. 18" INTO SOLID
T FILTER FABRIC GROUND
/ ON GROUND NOTES:
1. Hardware cloth and gravel should overlay the sift fence at least 12 inches.
2. Stone outlets should be placed on low elevation areas of silt fence and
based on field conditions.
MAINTENANCE:
1. Per NCG-01, inspect outlet at lest once a week and after each 1 inch
BURY 6" OF UPPER EDGE O or greater rainfall event. Complete any required repairs immediately.
F2. Freshen stone when sediment accumulation exceeds 6 inches.
FILTER FABRIC IN TRENCH 3. Keep mesh free of debris to provide adequate flow.
4. Remove sediment when haft of stone outlet is covered.
5. Replace stone as needed to facilitate de -watering.
SILT FENCE OUTLET
SEDIMENT FENCE INSTALLATION USING THE SLICING METHOD
Instead of excavationg a trench, placing fabric and then backfilling trench,
sediment fence mayh be installed using specially designed equipment that
inserts the fabric into a cut sliced in the ground with a disc (Figure 6.62b).
INSTALLATION SPECIFICATIONS
1. The base of both end posts should be at least one foot higher than the
middle of the fence. Check with a level if necessary.
2. Install posts 4 feet apart in critical areas and 6 feet apart on standard
applications.
3. Install posts 2 feet deep on the downstream side of the silt fence, and
as close as possible to the fabric, enabling posts to support the fabric from
upstream water pressure.
4. Install posts with the nipples facing away from the silt fabric.
5. Attach the fabric to each post with three ties, all spaced within the top 8
inches of the fabric. Attach each tie diagonally 45 degrees through the fabric,
with each puncture at least 1 inch vertically apart. Also, each tie should be
positioned to hang on a post nipple when tightened to prevent sagging.
6. Wrap approximately 6 inches of fabric around the end posts and secure
with 3 ties.
7. No more than 24 inches of a 36 inch fabric is allowed above ground
level.
8. The installation should be checked and corrected for any deviations before
compaction-
9- Compaction is vitally important for effective results. Compact the soil
immediately next to the silt fence fabric with the front wheel of the tractor,
skid steer, or roller exerting at least 60 pounds per square inch. Compact the
upstream side first, and then each side twice for a total of 4 trips.
MAINTENANCE
Inspect sediment fences at least once a week and after each rainfall. Make any
required repairs immediately.
Should the fabric of a sediment fence collapse, tear, decompose or become
ineffective, replace it promptly.
Remove sediment deposits as necessary to provide adequate storage volume
for the next rain and to reduce pressure on the fence. Take care to avoid
undermining the fence during cleanout.
Remove all fencing materials and unstable sediment deposits and bring the
area to grade and stabilize it after the contributing drainage area has been
properly stabilized.
The Slicing Method
Figure
6.62b
Ponding height
max. 24"
POST SPACING:
6' max. on open runs
Attach fabric to
upstream
max. on pooling areas
side of post
FLOW
POST DEPTH:
2 feet
Top of FabricBelttop 8"
Diagonal attachment
doubles strength.ATTACHMENT DETAILS•Gather fabric at posts, if needed.*Utilize three ties per post, all within top 8"
of fabric.*Position each tie diagonally, puncturing
holes vertically a minimum of 1" apart-
h t t I d
No more than 24" of a 36" fabric
eac ie on a pos
nipp a anis
allowed above ground.
tighten securely.Drive
over each side of silt
*Use cable ties (50lbs)
or soft wire.fence
2 to 4 times with device
exerting 60 p.s.i. or greater Roll of silt fence
Post
Operation
installed
after
compaction
Fabricabove
Silt
Fence
Oground
8" 12„Horizontal
chisel point Slicing blade
Completed
(3" width) (0.7" width)
Installation
Vibratory plow is not acceptable because of horizontal compaction
11
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rEll
rf 11
IMI
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FLOW DIRECTION �
SILT FENCE
SILT FENCE OUTLET
CONSTRUCTION ENTRANCE
CURB INLET
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Notes:
1. If needed, Tree Protection fencing should be installed along the buffer zone, wetland boundary and/or around
protected trees, providing a radius of at least 1.25 feet for each inch of trunk diameter.
2. Install Silt Fence on the low elevation sides of each lot. Install Silt Fence outlets shown on schematic/diagram and
field adjusted, if necessary, for placement at low points. If lots are contiguous and have different land owners or
builders, each lot should have individual Sift Fences.
3.1nstall required Silt Fence within 10 feet of property line to ensure there is no conflict with septic system. It is the
responsibility of the builder to ensure the installation of sediment control measures does not impact the septic
system and repair area(s).
4. At least one Construction Entrance/Exit is to be installed per lot.
5. Waste bins and other areas dedicated for managing building material waste shall be at least 50 feet away from
storm drain inlets or drainage ditches unless ft can be shown that no other alternative exists. If this separation
cannot be achieved, these areas must be contained behind Sift Fence.
6. Inlets downstream of disturbances should be protected, streets should be swept when sediment from the
construction activity is present.
7. Details for Sift Fence, Silt Fence Outlets, Construction Entrances and other measures are provided on additional
sheets. Erosion and sediment control details are not drawn to scale.
TYPICAL LOT LAYOUT WITH CURB AND GUTTER
Silt Sock/ Wattle Silt Sock/ Wattle NOTE:
FLOWZ' 3 Area to be FLOW 3" Area to be 1. Other materials providing equivalent protection
Protected - - I Protected against erosive velocities may be substituted for
use in silt socks or wattles.
2. Fill silt sock/wattle netting uniformly with compost
12" Min. �.� 2" x 2" 12" Min. s� 2" x 2" to the desired length such that logs do not deform.
Stakes Stakes 3. Silt sock/Wattle(s) should be installed parallel to
SECTION and a minimum of 10 feet beyond the toe of a
SECTION graded slope. Sift Sock/Wattle(s) located below
flat areas should be located at the edge of the
land disturbance. The ends of the silt
sock/wattle(s) should be turned slightly upslope to
'c�0ep�
'�(O 00. prevent runoff from going around the end of the
0 silt sock/wattle(s).
--- I 4. Oak or other durable hardwood stakes with a 2
inch x 2 inch cross section should be driven
= III vertically plumb, through the center of the silt
��WVV sock/wattle. Stakes should be placed at a
_ maximum interval of 4 feet or a maximum interval
Trench in = of 8 feet tithe sift sock/wattle is placed in a 4 inch
Wood Mulground 4" Min. trench.
To 1 /2 height of log 5. In the event staking is not possible (ie. when
UNTRENCHED INSTALLATION ENTRENCHED INSTALLATION* socks/wattles are used on pavement) heavy
-THISAPPLICATIONMAY NOT BEUSED WITHCOMPOSTSOCKSSMALLER THAN I2". COrlcreteblOCksShallbeDsedbehindthesilt
sock/wattle to hold ft in place during runoff events.
ISOMETRIC VIEW
MAINTENANCE:
1. Inspect silt sock/wattle at least weekly and after
h 1 i h t i fall R
Mulch or Compost
for Entrenched Socks
Area To Be Pr
Sheet Flow
Silt Sock
Wattle
Work Area
eac Inc or grea er ram a . emove
accumulated sediment and any debris as
needed to allow for adequate flow.
2. Silt sock/Wattle must be replaced d clogged or
torn.
3. If ponding becomes excessive, the sift
sock/wattle may need to be replaced with a
larger diameter or a different measure.
4. Reinstall if damaged or dislodged.
5. Silt socks/wattles shall be inspected until land
disturbance is compete and the area above the
measure has been permanently stabilized.
..\NC -Environmental. inea
COMPOST SOCK INITIAL FLOW RATES
te6401Post Sock
8 Inch
(200
12 Inch
18 Inch
24 Inch
32 Inch
(750
Design Diameter
nm)
(300 nm)
(450 nm)
(600 nm)
nm)
Maximum Slope
600 Feet
750 Feet
1,000
1,300
1,650
Length (<2%)
(183 m)
(229 m)
Feet
Feet
Feet
(305 m)
(396 m)
(500 m)
Hydraulic Flow
7.5
11.3
15.0
22.5
30.0
Through Rate
gpm/ft
gpm/ft
gpm/ft
gpm/ft
gpm/ft
(94
(141
(188
(281
(374
1/m/m)
I/m/m)
I/m/m)
I/m/m)
I/m/m)
GROUND STABILIZATION
SITE AREA
STABILIZATION
EXCEPTIONS
DESCRIPTION
TIME FRAME
PERIMETER DIKES,
7 DAYS
NONE
SWALES, DITCHES
& SLOPES
HIGH QUALITY
7 DAYS
NONE
WATER ZONES
(HQW)
SLOPES STEEPER
7 DAYS
IFSLOPES ARE
THAN 3:1
10' OR LESS IN
LENGTH AND ARE
NOT STEEPER
THAN 2:1, 14
DAYS ARE
ALLOWED
SLOPES 3:1 OR
14DAYS
7 DAYSFOR
FLATTER
SLOPES GREATER
THAN 50' IN
LENGTH
ALL OTHER AREAS
14DAYS
NONE (EXCEPT
WITH SLOPES
FOR PERIMETERS
FLATTER THAN 4:1
AND HQW ZONES)
SODDING
LAY SOD IN A STAGGERED
PATTERN. BUTT THE STRIPS
TIGHTLY AGAINST EACH OTHER-
04-DO
NOT LEAVE SPACES AND DO
NOT OVERLAP. A SHARPENED
MASON'S TROWEL IS A HANDY
TOOL FOR TUCKING DOWN THE
ENDS AND TRIMMING PIECES.
BUTTING -ANGLED ENDS
CAUSED BYTHEAUTO-
INCORRECT
MATIC SOD CUTTER MUST BE
MW
MATCHED CORRECTLY.
CORRECT
ROLL SOD IMMEDIATELY TO WATER TO A DEPTH OF 4" MOW WHEN THE SOD IS
ACHIEVE FIRM CONTACT AS NEEDED. WATER WELL ESTABLISHED - IN 2-3
WITH THE SOIL, AS SOON AS THE SOD IS WEEKS. SET THE MOWER
LAID. HIGH (2"-3").
APPEARANCE OF GOOD SOD
JJ SHOOTS -OR GRASS BLADESGRASS SHOULDBEGREENAND
IHEALTHY,MOWED AT A2"-3"
CUTTING HEIGHTCH - GRASS CLIPPINGSAND DEAD
LEAVES, UPTO 1/2"THICKROOTZONE-BOILAND ROOTS SHOULD BE
1/2"- 3WTHICK,WHT DENSE ROOT MAT
FOR STRENGTH
RUCTION SCHEDULE
btain all necessary permits and plan approvals. Erosion and Sediment Control
&SC) permit and a Certificate of Coverage (COC) must be obtained before any land disturbing activities
:cur. A copy of the E&SC permit, the COC and a hard copy of the plan must be kept on site, preferably in a
;rmits box, and accessible during inspection.
stall gravel construction entrances first, then silt fences, reinforced silt fence outlets and wattles.
nish clearing and grubbing any necessary areas on the lots as they are started.
-gin lot grading and excavation activities
-gin or continue with house construction activities.
nish all rough grading and house construction.
stall driveways, walks and patios.
gin fine grading of lot areas
nal grassing, mulching and stabilizing of lot. In most cases this will involve the installation of sod on the lot.
ie silt fence will remain in place until the lot is sodded or grassing is stabilized and takes hold.
ie contractor shall conduct self -inspections of the erosion and sedimentation control measures and complete
e following combined self -inspection form found on the DEMLR website
tps:Hfiles.ne.gov/nedeg/Energy%2OMineral%20and%2OLand%2OResources/Stormwater/NPDES%20
-neral%20Permits/DEMLR-CSW-Monitoring-Forms-Rev-August-8-2019.pdf. Twelve months of complete
Ispection forms shall be kept on site and available for inspection at all times. It is recommended a copy be
opt in a permits box. (GS 113A-54.1 (e), 15A NCAC 04B.0131, NCGOI Part III Sections A and B)
elf -inspections for erosion and sedimentation control measures are to be performed at least once every seven
alendar days and within 24 hours of every rain event of greater than 1 inch. Any needed repairs shall be
Lade immediately to maintain measures as designed. All ESC measures shall be maintained as specified in
le construction details on this plan. A rain gauge shall be installed at the project site for monitoring.
tspection and final acceptance letters. When the project is complete, the permittees shall contact DEMLR to
lose out the E&SC Plan. After DEMLR informs the permittee of the project close out, via inspection report,
to permittee shall visit "deq.nc.gov/NCGO1" to submit an electronic Notice oftermination (e-NOT). A $100
inual general permit fee will be charged until the e-NOT has been filled out.
A '°SELF -INSPECTION REPORT FOR LAND DISTURBING ACTIVITY AS
REQUIRED BY NCGS 113A-54.1"IS AVAILABLE FOR USE. IT CAN BE
COMPLETED BY HAND OR COMPLETED AS AN EXCEL
SPREADSHEET.
AN ALTERNATIVE IS TO MAKE NOTATIONS ON THE COPY OF THE
APPROVED EROSION AND
SEDIMENTATION CONTROL PLAN THAT IS KEPT ON THE PROJECT SITE.
RULE 15A NCAC 04B. 0131 STATES THAT "...DOCUMENTATION SHALL
BE ACCOMPLISHED BY INITIALING AND DATING EACH MEASURE OR
PRACTICE SHOWN ON A COPY OF THE APPROVED EROSION AND
SEDIMENTATION CONTROL PLAN OR BY COMPLETING, DATING AND
SIGNING AN INSPECTION REPORT THAT LISTS EACH MEASURE,
PRACTICE OR DEVICE SHOWN ON THE APPROVED EROSION AND
SEDIMENTATION CONTROL PLAN."
General Erosion Control Notes
1. Only the areas shown shall be disturbed.
2. All disturbed areas shall be grassed and
mulched as soon as possible and maintained
until pemanent cover is established.
suant to G.S.113A(3), provisions for permanent ground
?r sufficient to restain erosion must be accomplished for
disturbed areas within 14 working days or 90 calender days
ichever is shorter) following completion of construction.
PAGE 1 of 2
TOTAL DISTURBED ACREAGE: 4.82 ACRES
LOT EROSION CONTROL PLAN
OTS 227-231, 255-257, 262, 263, 289,
290, 296-299, 305-307 8c 318-323
HIGHCROFT
PHASE 4, PART 2
FOR
DREAMFINDERS HOMES, LLC
71ST TOWNSHIP CUMBERLAND CO., N.C.
SCALE: 1"= 100' DECEMBER 2022
GRAPHIC SCALE IN FEET
-100 -50 0 100 200 300
IOORMAN, KIZER& REITZEL, INC. 115BROADFOOTAVE. FAYETTEVILLE, N.C.
PHONE tale) 484-5191 FAX (ain) 484-0388 LICENSE #: F-01nA
LAST SAVED:12/20/2022 7:52 AM LAST PLOTTED:12/20/2022 8:10 AM PLOTTED BY: Dennis Gilbert FILENAME: G:ACURRENT JOBS\H & H CONSTRUCTORS\12-1367-09 HIGHCROFT - EROSION CONTROL\PLANS\EC-HIGHCROFT.PHASE4-PART 2-LOTS 227-231, 255-257---.DWG