20220312 Ver 1_More Info Received_20220307

ULTURAL COST SHARE PROGRAM (ACSP)
CPO # 11-2017-007
STREAMBANK STABILIZATION
Prepared for Shelly Brown
180 Cross Creek Farm Rd., Fletcher, NC
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VICINTY MAP
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CONTACT NC 811 PRIOR TO CONSTRUCTION TO HAVE UTILITIES LOCATED. THE SOIL AND WATER
CONSERVATION DISTRICT AND THE DIVISION OF SOIL AND WATER CONSERVATION MAKE NO
REPRESENTATION AS TO THE EXISTENCE OR NON-EXISTENCE OF ANY UTILITIES ON -SITE. SHOWN
IN THESE DRAWINGS ARE THE APPROXIMATE LOCATIONS OF THOSE UTILITIES WHICH HAVE BEEN
IDENTIFIED. IT IS THE RESPONSIBILITY OF THE LANDOWNERS OR OPERATORS AND
CONTRACTORS TO ASSURE THEMSELVES THAT NO HAZARD EXISITS OR DAMAGE WILL OCCUR TO
UTILITIES.
SHEET #1: TITLE PAGE
SHEET #2: SITE OVERVIEW
SHEET #3: GRADING PLAN
SHEET #4: TYPICAL CROSS-SECTION
SHEET #5: GEOLIFT CONSTRUCTION DETAILS
SHEET #6: VEGETATION SPECIFICATIONS
SHEET #7: COIR MATTING INSTALLATION DETAILS
CONSTRUCTION NOTES AND SEQUENCE
1. Obtain plan approval and other applicable permits.
2. Delineate property boundaries within project area, buffer limits, and limits of construction.
3. All equipment is to be stored and fueled in a protected area outside the designated buffer
4. Hold preconstruction conference no more than one week prior to starting construction.
5. Begin installation of rip rap toe at the upstream location of the tie into existing bank.
6. Place non -woven geotextile as indicated in the typical section leaving enough width to wrap the fabric on the back of the rip rap.
7. Place the rip rap as indicated on the plans and as directed by the engineer or their delegate.
8. If required when the equipment can no longer reach from the top of the bank, install access ramp on bank behind the installed
rip rap so no active flow can reach the disturbed material. In lieu of building the ramp, a long reach excavator may be used.
9. Continue the rip rap toe to the tie at the downstream end of the project.
10. Wrap geotextile around back of rock toe.
11. Place fill material such that all new material is placed, compacted, and temporarily mulched within the same day it is placed (if
geolifts are not completed the same day). Site is to be temporarily stabilized at the end of each day.
12.Begin to place fill material behind the rock toe which will act as a berm to protect newly placed fill from active flow.
13. When fill material is within 10" - 12" of the top of the rip rap toe, place woven coir matting backed by non -woven coir to create a
lift on top of the rock toe, as indicated on the plans. Drape the first soil geolift over the front face of the rip rap toe as indicated
on the plans.
14. Continue to place fill material to approximatly 1' above the top of the rip rap toe creating the first geolift.
15.Continue constructing geolifts as outlined on Sheet 5 until bankfull elevation is reached.
16.Lime, fertilize, seed (temporary and permanent) and straw mulch all disturbed areas along channel as specified in construction
documents.
17.Secure matting with stakes as indicated on the plans.
18.Install remaining fill to existing grade at no more than 2:1 slope.
19.Lime, fertilize, seed (temporary and permanent) and straw mulch all disturbed areas along channel as specified in construction
documents.
20.Install woven coir matting per Sheet 7 to a minimum of 2' beyond the top of the bank or as directed by the engineer or their
delegate.
21.Plant woody vegetation if soil and plant conditions permit.
22.AII erosion and sediment control practices will be inspected weekly and after each rainfall event. Needed repairs and
maintenance will be conducted immediately.
23.After site is stabilized, remove all temporary measures and install permanent vegetation on the road and staging area.
24.Estimated time before final stabilization shall be approximately 2 weeks.
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Digitally signed by
McKinley L Owen
Date: 2022.01.24
11:03:59 -05'00'
THIS ITEM HAS BEEN ELECTRONICALLY SIGNED
AND SEALED BY M. LAYNE OWEN, PE ON
JANUARY 24, 2022 USING A DIGITAL SIGNATURE.
PRINTED COPIES OF THIS DOCUMENT ARE NOT
CONSIDERED SIGNED AND SEALED AND THE
SHA AUTHENTICATION CODE MUST BE VERIFIED
ON ANY ELECTRONIC COPIES.
Sheet. No. 1 of 7

LEGEND
ABENCHMARK
NAIL IN GROUND
Scale In Feet
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FLOOD STUDY PUBLISHED
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PROJECT CROSS-SECTION @
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EL: 2114.06
NOTES:
1. ALL ELEVATIONS ARE RELATIVE TO NAVD '88.
2. REFERENCE MARKS SET BY GPS FIELD OBSERVATIONS
AND TOTAL STATION ROBOTIC INSTRUMENT.
3. COORDINATES ARE RELATIVE TO NAD '83 AND DISPLAYED
AS NORTH CAROLINA STATE PLANE 3200 US SURVEY FEET.
4. ELEVATION DATA DISPLAYED OUTSIDE SURVEY
BOUNDARY IS DERIVED FROM NCFMP LIDAR: STATEWIDE
NORTH CAROLINA PHASE 2.
5. FEATURES DISPLAYED OUTSIDE SURVEY BOUNDARY ARE
DERIVED FROM NC ORTHO IMAGERY.
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BUNCOMBE COUNTY, NORTH
AND CONSUMER SERVICES
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THIS ITEM HAS BEEN ELECTRONICALLY SIGNED
AND SEALED BY M. LAYNE OWEN, PE ON
JANUARY 24, 2022 USING A DIGITAL SIGNATURE.
PRINTED COPIES OF THIS DOCUMENT ARE NOT
CONSIDERED SIGNED AND SEALED AND THE
SHA AUTHENTICATION CODE MUST BE VERIFIED
ON ANY ELECTRONIC COPIES.
Sheet No. 2 of i

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THIS ITEM HAS BEEN ELECTRONICALLY SIGNED
AND SEALED BY M. LAYNE OWEN, PE ON
JANUARY 24, 2022 USING A DIGITAL SIGNATURE.
PRINTED COPIES OF THIS DOCUMENT ARE NOT
CONSIDERED SIGNED AND SEALED AND THE
SHA AUTHENTICATION CODE MUST BE VERIFIED
ON ANY ELECTRONIC COPIES.
Sheet No. 3 of 7

2110
2105
2095
2090
—
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EARTHFILL
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APPROX.
140 CY
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SOIL
GEOLIFTS
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SEE
SHEET
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5 FOR DETAILS
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hICDOT CLASS 2 RIP
RAP
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TONS
NON -WOVEN,
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NEEDLE -PUNCHED
GEOTEXTILE
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LEGEND
SURFACE
COLOR
FLOOD STUDY PUBLISHED CROSS-SECTION STA. 308+24
2006 BARE EARTH LiDAR
2019 DEM from 2017 LiDAR
11/2021 FIELD SURVEY
PROPOSED REPAIR
Stream:
Basin:
Drainage Area:
Location:
Latitude:
Longitude:
Date:
Valley Type:
Bankfull Width (Wbkf):
Bankfull Depth (Dbkf):
Bankfull X-Section Area (Abkf):
Width/Depth Ratio (Wbkf/Dbkf):
Maximum Depth (Dmax):
Width of Flood -Prone Area (Wfpa):
Entrenchment Ratio (ER):
Channel Materials (D50):
Water Surface Slope (S):
Channel Sinuosity (k):
STREAM CHANNEL CLASSIFICATION:
Cane Creek
French Broad
34,560 acres (54 square miles)
Buncombe County, North Carolina
35.45434° N
82.46928° W
February 25, 2015
VIII
78 feet
8 feet
460 square feet
9.75
8 feet
1080 feet
13.8
12 mm
0.008 feet/feet
1.12
C4
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0
LAYNE OWEN, PE
BROWN_ 1 1 .201 7.007.dwg
E
828-713-7915
THIS ITEM HAS BEEN ELECTRONICALLY SIGNED
AND SEALED BY M. LAYNE OWEN, PE ON
JANUARY 24, 2022 USING A DIGITAL SIGNATURE.
PRINTED COPIES OF THIS DOCUMENT ARE NOT
CONSIDERED SIGNED AND SEALED AND THE
SHA AUTHENTICATION CODE MUST BE VERIFIED
ON ANY ELECTRONIC COPIES.
Sheet No. 4 of 7

20' UNDISTURBED, VEGETATED
RIPARIAN BUFFER FROM BANKFULL ELEVATION
2'-4'
LIVE BRANCHES TYP. 3'-5'
WITH TOPSOIL
WOVEN COIR FABRIC
SEE SHEET 7 FOR DETAILS
6"
WOODEN STAKES
LIVE STAKES
2'-3' ON CENTER
2' MAX -I
1' MAX
WOVEN
COIR FABRIC
ON OUTSIDE
NON -WOVEN
COIR MATTING
ON INSIDE
NOTES:
1) ENSURE BACKFILL SOIL AND TOPSOIL USED FOR BRANCH LAYERING IS FREE OF LARGE ROOTS, WOODY DEBRIS, AND
LARGE GRAVEL AND COBBLE. COMPACT BACKFILL TO REDUCE SETTLING WITHOUT DISPLACING OR DAMAGING
UNDERLYING RIP RAP AND BRUSH.
2) SLOPE THE BACKFILL FOR THE FIRST LIFT AWAY FROM THE STREAM AT 5%.
3) PLACE TOPSOIL AND LIVE BRANCHES ON BACKFILL TO ALLOW 6"-12" OF BRANCH TO PROTRUDE AND THE REMAINNG 2-4'
WILL BE COVERED BY THE NEXT LIFT.
4) LIVE BRANCHES AND LIVESTAKES OF PLANT MATERIAL SHALL INCLUDE ONE SPECIES OF WILLOW (BLACK WILLOW (SALIX
NIGRA), CAROLINA WILLOW (SALIX CAROLINIANA), OR SILKY WILLOW (SALIX SERICEA)); SILKY DOGWOOD (CORNUS
AMOMUM); AND ELDERBERRY (SAMBUCUS NIGRA SSP. CANADENSIS). SUBSTITUTIONS MUST BE APPROVED BY THE
ENGINEER.
5) WOVEN COIR GEOTEXTILE FABRIC FOR THE SOIL LIFTS SHALL BE WOVEN GEOTEXTILE FABRIC PRODUCED FROM YARNS
SPUN FROM NATURAL COIR FIBER AND SHALL MEET THE FOLLOWING SPECIFICATIONS:
PROPERTY
TEST METHOD
ENGLISHUNITS
TYPICAL VALUE
MD CD
MASS PER UNIT AREA
ASTM D-6475
18.96
pZIY D2
THICKNESS
ASTM D-6525
396
MILS
WATER ABSORPTION
ASTM D-1117
184
%
LIGHT PENETRATION
ASTM D-6567
36
%
GROUND COVER
ASTM D-6241
64
%
TENSILE STRENGTH
ASTM D-6818
102.8
75.8
LBSIIN
ELONGATION
ASTM D-6818
45.1
40.3
%
6) SOIL LIFT SHALL BE CONSTRUCTED BY PLACING 6.5 TO 9.5 FEET OF WOVEN COIR GEOTEXTILE FABRIC ON TOP OF THE
LIVE BRANCHES AND TOPSOIL, WITH 2.5' TO BE COVERED BY THE NEXT SOIL LIFT. 4.5 TO 7.5 FEET OF THE FABRIC WILL
HANG OVER THE RIP RAP OR PRECEDING SOIL LIFT.
7) TOP THE WOVEN COIR GEOTEXTILE FABRIC WTH A 6.5 FOOT PIECE OF NON -WOVEN COIR MATTING TO PROVIDE
MULCHING.
8) PLACE A PIECE OF LUMBER USING WOODEN STAKES TO THE LIFT HEIGHT AT THE FACE OF THE LIFT TO PROVIDE A FORM
FOR SOIL COMPACTION.
9) BACK FILL SOIL LIFT WITHOUT MOVING OR TEARING THE FABRIC AND WITHOUT DISTURBING THE LIVE BRANCHES.
10) THE TOP OF THE BACKFILL SHALL HAVE 0% SLOPE FROM THE STREAM SIDE EDGE FOR THE FIRST 1 FOOT. BEYOND THE
SETBACK (1 FOOT) THE BACKFILL SHOULD BE SLOPED AT A 5% SLOPE AWAY FROM THE STREAM.
11) USING TOPSOIL, DRESS THE LIFT FROM THE FACE TO THE BACK IN TO THE FLOODPLAIN AT A DISTANCE GREATER THAN
OR EQUAL TO THE LENGTH OF THE LONGEST LIVE BRANCH.
12) REMOVE COMPACTION FORM, APPLY SEED TO THE TOP AND FACE OF THE SOIL LIFT, AND WRAP WITH THE WOVEN AND
NON -WOVEN COIR FABRICS USING THE MATTING THAT WAS ALLOWED TO HANG OVER THE PREVIOUS LIFT OR RIP RAP.
TO ENSURE GOOD SOIL CONTACT AND A STABLE LIFT, PULL THE FABRIC TIGHT WITHOUT TEARING OR STRETCHING.
13) USING WOODEN STAKES THAT ARE 2°X2"X1.5', SECURE THE TWO LAYERS OF MATTING BY STAKING THE END BACK IN THE
BANK AT 1.5 FOOT CENTERS.
14) REPEAT SOIL LIFT CONSTRUCTION (NOTES 6 TO 17) TO REACH THE TOP OF THE BANK ELEVATION.
15) THE FABRIC OF THE FINAL SOIL LIFT SHALL BE SECURED IN A TRENCH AT LEAST 6-INCHES DEEP AS SHOWN ON THE
DETAIL.
16) ADDITIONAL LIVESTAKES SHALL BE INSTALLED ON EACH SOIL LIFT ON 3' CENTERS. LIVESTAKES SHALL BE INSTALLED ON
ALL BANK AREAS DISTURBED DURING CONSTRUCTION AND AT THE BANK TIE IN POINTS.
17) THE TOP SURFACE SHALL BE SMOOTH AND TIE TO THE EXISTING BANK IN THE LOCATIONS INDICATED ON THE PLANS AND
AS APPROVED BY THE ENGINEER. FINAL GRADE IS TO BE APPROVED BY THE ENGINEER. THE TOP OF THE SLOPE SHALL
BE RAKED, SEEDED AND MULCHED.
NCDOT CLASS 2 RIP RAP
NON -WOVEN, NEEDLE -PUNCHED
GEOTEXTILE FABRIC
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CONSTRUCTION
BUNCOMBE COUNTY, NORTH CAROLINA
AND CONSUMER SERVICES
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THIS ITEM HAS BEEN ELECTRONICALLY SIGNED
AND SEALED BY M. LAYNE OWEN, PE ON
JANUARY 24, 2022 USING A DIGITAL SIGNATURE.
PRINTED COPIES OF THIS DOCUMENT ARE NOT
CONSIDERED SIGNED AND SEALED AND THE
SHA AUTHENTICATION CODE MUST BE VERIFIED
ON ANY ELECTRONIC COPIES.
Sheet No. 5 of 7

STREAMBANK STABILIZATION PROCEDURE:
1. SOIL PREP
2. APPLY SEED, LIME, & FERTILIZER AS SPECIFIED
3. APPLY STRAW MULCH AS SPECIFIED
4. INSTALL COIR MATTING EROSION CONTROL BLANKET AS OUTLINED ON TOP
OF MULCHED SURFACE
5. INSTALL LIVESTAKES AS SPECIFIED
ALL OTHER DISTURBED AREAS:
1. SOIL PREP
2. APPLY SEED, LIME, & FERTILIZER AS SPECIFIED
3. APPLY STRAW MULCH AND/OR ECB AS SPECIFIED
STREAMBANK PLANTING MIXTURE CONTENT:
*APPLY SEED MIXTURE AT A RATE OF 20 POUNDS PER ACRE. SEED CONTENT RATIO
MAY VARY WITH APPROVAL.
20.0% Elymus virginicus (Virginia Wildrye)
20.0% Poa palustris (Fowl Bluegrass)
20.0% Sorghastrum nutans (Indiangrass)
17.0% Panicum anceps, (Beaked Panicgrass)
15.0% Carex vulpinoidea (Fox Sedge)
4.0% Chamaecrista fasciculata (Partridge Pea)
2.0% Helenium flexuosum (Purplehead Sneezeweed)
2.0% Vernonia noveboracensis (New York Ironweed)
LIME AND FERTILIZER:
LIME: 2,000 POUNDS / ACRE OF FINELY GROUND, DOLOMITIC LIMESTONE
FERTILIZER: 400 POUNDS/ ACRE OF 10-10-10 OR EQUIVALENT
*THESE RATES ALSO APPLY WHEN HYDROSEEDING
MULCHING:
SIX (6) FEET WIDTH OF 700 G/M2 COIR MATTING SHALL BE INSTALLED FROM THE
STREAM'S EDGE TO BEYOND BANKFULL STAGE AT LEAST 5' UPSTREAM AND
DOWNSTREAM OF TIE IN PONTS. BLANKETS SHALL BE ANCHORED WITH WOOD
STAKES IN ACCORDANCE WITH THE MANUFACTURER'S SPECIFICATIONS.
REMAINING SURFACES MAY BE MULCHED WITH DRY, UNCHOPPED, UNWEATHERED
SMALL GRAIN STRAW OR HAY FREE OF SEEDS OF COMPETING PLANTS. SPREAD AT
THE RATE OF 1-2 TONS PER ACRE DEPENDING UPON THE SEASON. EVENLY SPREAD
MULCH OVER THE AREA BY HAND OR MECHANICAL EQUIPMENT. APPLY MULCH
UNIFORMLY SO THAT 25% OF THE GROUND SURFACE IS VISIBLE.
TEMPORARY SEED SHALL BE APPLIED TO ESTABLISH GROUND COVER BASED UPON
THE FOLLOWING PLANTING TIME FRAME:
RYE GRAIN (SECALE CEREALE) 25 LBS/AC AUG 15 - MAY 15
BROWNTOP MILLET (UROCHLOA RAMOSA) 10 LBS/AC MAY 15 - AUG 15
LIVE STAKES AND CUTTINGS:
1. CUTTINGS SHOULD BE INSTALLED THE SAME DAY THEY ARE CUT. THE STAKE
SHOULD BE ORIENTED WITH THE BUDS POINTED UP, AND THE BOTTOM
SHOULD BE CUT AT AN ANGLE FOR EASY INSERTION INTO THE GROUND.
2. ABOUT 3/4 OF THE LENGTH OF THE STAKE SHOULD BE BELOW GROUND AND
ANGLED DOWNSTREAM. AN IRON BAR CAN BE USED TO MAKE A PILOT HOLE
TO PREVENT BARK FROM BEING DAMAGED DURING INSTALLATION.
TRANSPLANTS AND CONTAINER STOCK:
1. STOCK SHALL HAVE BEEN GROWN IN A CONTAINER LONG ENOUGH FOR THE
ROOT SYSTEM TO HAVE DEVELOPED SUFFICIENTLY TO HOLD ITS SOIL
TOGETHER ONCE REMOVED FROM THE CONTAINER.
2. CONTAINER PLANTS WILL NEED TO BE WATERED REGULARLY AND PLACED IN
SHADY CONDITIONS UNTIL PLANTING OCCURS. CREATE PLANTING AREA FOR
EACH PLANT AND EXCAVATE PIT.
3. THE DIAMETER OF THE PLANTING HOLES (PITS) FOR EACH PLANT SHOULD BE
AT LEAST THREE TIMES THE DIAMETER OF THE ROOT MASS. SCARIFY THE
PLANTING PIT PRIOR TO EACH PLANT INSTALLATION.
4. SET PLANTS UPRIGHT IN THE CENTER OF THE PIT. THE BOTTOM OF THE
ROOT MASS SHOULD BE RESTING ON UNDISTURBED SOIL.
5. PLACE BACKFILL AROUND BASE AND SIDES OF ROOT MASS, AND WORK EACH
LAYER TO SETTLE BACKFILL AND TO ELIMINATE VOIDS AND AIR POCKETS.
WHEN PIT IS APPROXIMATELY 2/3 FULL, WATER THOROUGHLY BEFORE
PLACING REMAINDER OF THE BACKFILL. WATER AGAIN AFTER PLACING FINAL
LAYER OF BACKFILL.
GENERAL VEGETATION PLAN NOTES:
1. GROUND COVER, SOIL PREP, TEMPORARY AND PERMANENT VEGETATION
SHALL BE INSTALLED ON ALL AREAS DISTURBED DURING GRADING,
STRUCTURAL, AND STABILIZATION WORK.
2. LIVE STAKES, TRANSPLANTS, AND/OR CONTAINERIZED PLANTS SHALL BE
LOCATED WHERE SHOWN ON PLAN.
3. ADJUSTMENTS TO THE VEGETATION PLAN SHALL BE MADE ONLY IF
APPROVED BY THE PROJECT ENGINEER.
RECOMMENDED NATIVE PLANT SPECIES FOR RIPARIAN AREAS
TREES
PAINTED BUCKEYE
CHERRY BIRCH
RIVER BIRCH
BITTERNUT HICKORY
SHAGBARK HICKORY
PERSIMMON
GREEN ASH
SILVERBELL
BLACKGUM
SYCAMORE
BLACK CHERRY
BLACK WILLOW
WHITE BASSWOOD
SMALL TREES/SHRUBS
TAG ALDER
SERVICEBERRY
RED CHOKEBERRY
COMMON PAWPAW
SWEET -SHRUB
IRONWOOD
ALTERNATE LEAF DOGWOOD
SILKY DOGWOOD
HAZEL -NUT
WITCH -HAZEL
WINTER BERRY
DOGHOBBLE
SPICEBUSH
MALE -BERRY
UMBRELLA TREE
NINEBARK
WILD AZALEA
SWAMP AZALEA
SWAMP ROSE
SILKY WILLOW
MEADOWSWEET
SWEET LEAF
W ITH E-ROD
YELLOW -ROOT
ELDERBERRY
ALL SMALL TREES / SHRUBS SHALL BE PLANTED AT SPACING OF 3' X 3'.
THE ENTIRE REPAIRED STREAMBANK SHALL BE ESTABLISHED WITH WOODY
VEGETATION.
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0
LAYNE OWEN, PE
BROWN_ 1 1 .201 7.007.dwg
o_
828-713-7915
SHELLY BROWN
BUNCOMBE
AND CONSUMER SERVICES
THIS ITEM HAS BEEN ELECTRONICALLY SIGNED
AND SEALED BY M. LAYNE OWEN, PE ON
JANUARY 24, 2022 USING A DIGITAL SIGNATURE.
PRINTED COPIES OF THIS DOCUMENT ARE NOT
CONSIDERED SIGNED AND SEALED AND THE
SHA AUTHENTICATION CODE MUST BE VERIFIED
ON ANY ELECTRONIC COPIES.
Sheet No. 6 of 7

MATTING, TYPICAL
(SEE NOTE 1)
TOP OF BANK ANCHOR
(SEE DETAIL)
DEAD STOUT STAKE,
TYPICAL (SEE DETAIL)
TOP OF BANK
MATTING OVERLAP
(SEE DETAIL)
6"
BACKFILL
(SEE NOTE 2)
TOE OF BANK ANCHOR SEE DETA
MATTING, TYPICAL
(SEE NOTE 1)
TOP OF BANK
MATTING ANCHOR DETAIL
MATTING WRAP
(SEE NOTE 2)
TOE OF BANK
DEAD STOUT STAKE, TYPICAL
(SEE DETAIL)
TOE OF BANK
MATTING STAKE, TYPICAL (SEE NOTE 6)
•
CROSS-SECTION
UNTREATED
2" X 4" (NOMINAL)
BOARD
APPROXIMATE BASE
FLOW WATER LEVEL
TOE OF BANK
4"
12"
0" — 1/2"
DIRECTION
1®OR®2
\7/
24"
10 DIRECTION OF STREAM FLOW
®2 DIRECTION DOWN THE BANK SLOPE
OVERLA
6"
24'
MATTING OVERLAP
(SEE NOTE 5)
MATTING OVERLAP DETAIL
24"
OVERLAP
6"
MATTING, TYPICAL.
(SEE NOTE 1)
NOTES:
1. EROSION CONTROL MATTING SHALL CONSIST OF 700 GRAM WOVEN COIR FIBER EROSION CONTROL
MATTING (SPECIFICATIONS SHALL BE SUBMITTED FOR APPROVAL PRIOR TO INSTALLATION). MATTING
SHALL BE INSTALLED FLAT AND STAKED AGAINST A SLOPE AND/OR A STREAM BANK.
2. MATTING SHALL BE ANCHORED IN A TRENCH AT BOTH THE TOE AND TOP OF THE STREAM BANK.
DEAD STOUT STAKES AND CLEAN SOIL BACKFILL SHALL BE USED TO SECURE THE MATTING INTO THE
TOE AND TOP OF BANK TRENCHES. TO PREVENT EROSION OR "WASHING OUT" OF BACKFILL IN THE
TOE OF BANK ANCHOR TRENCH, MATTING SHALL BE INSTALLED SO THAT IT WRAPS OVER THE DEAD
STOUT STAKE AND BACKFILL, THUS POSITIONING THE REMAINING MATTING FOR INSTALLATION UP
THE STREAM BANK.
3. THE SLOPE AND/OR STREAM BANK SHALL BE PREPARED (GRADED, TILLED, SMOOTHED, ETC.) AND
SEEDED AND MULCHED AS SPECIFIED BY THE DESIGNER PRIOR TO THE PLACEMENT OF THE
MATTING.
4. THE MATTING SHALL BE INSTALLED SO AS TO NOT BE IN TENSION, BUT BE PLACED NEATLY, FLUSH
AGAINST THE SOIL, AND WITH NO GAPS OR WRINKLES. ADDITIONAL STAKING SHALL BE INSTALLED BY
THE CONTRACTOR AS NEEDED TO ENSURE CONTACT WITH THE SOIL.
5. ANY MATTING OVERLAPS NECESSARY SHALL BE OF A LENGTH SPECIFIED BY THE MANUFACTURER
OR AS OTHERWISE SPECIFIED BY THE DESIGNER. ALSO, OVERLAPS SHALL BE ORIENTED IN A
DOWN -SLOPE DIRECTION, DOWNSTREAM DIRECTION, OR OTHERWISE "SHINGLE -STYLE" IN
ACCORDANCE WITH THE DIRECTION OF THE DOMINANT EROSIVE ACTION SO THAT THE MATTING END
IS PROTECTED AGAINST MOVEMENT.
6. THE FIELD OF THE MATTING OVER THE SURFACE OF THE SLOPE AND/OR STREAM BANK SHALL BE
SECURED WITH MATTING STAKES OF A SIZE AND TYPE, IN A PATTERN, AND WITH SPACING
DIMENSIONS AS SPECIFIED BY THE MANUFACTURER OR AS OTHERWISE SPECIFIED BY THE
DESIGNER.
7. MATTING SHALL BE NEATLY SECURED AROUND ANY PROJECT STRUCTURES, STRUCTURE ARMS,
AND/OR SILLS TO PREVENT ANY LOOSE OR FRAYED EDGES.
8. THERE SHALL BE NO LOOSE ENDS OR UNSECURED MATTING ON THE COMPLETED WORK.
9. THE PLAN VIEW ILLUSTRATES A PERPENDICULAR PERSPECTIVE OF EACH SURFACE DEPICTED IN THE
CROSS SECTION. THERE IS NO FORESHORTENING OF THE STREAM BANK (OR ANY OTHER SLOPED
SURFACE) IN THE PLAN VIEW.
12"
MATTING OVERLAP
(SEE DETAIL)
/
/
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12"
TOE OF BANK ANCHOR
(SEE DETAIL)
FLOW
PLAN VIEW
(SEE NOTE 9)
OVERLAP
6"
TOP OF BANK
MATTING, TYPICAL
(SEE NOTE 1)
MATTING STAKE TYPICAL
(SEE NOTE 6)
DEAD STOUT
STAKE TYPICAL
(SEE DETAIL)
APPROXIMATE BASE
FLOW WATER LEVEL
TOE OF BANK
NOT TO SCALE
a v
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73
LAYNE OWEN, PE
BROWN_ 1 1 .201 7.007.dwg
828-713-7915
SHELLY BROWN
COIR MATTING INSTALLATION DETAILS
AND CONSUMER SERVICES
.0111111ffI,
\ /
CZ.<
— SEAL•043646 : Z
THIS ITEM HAS BEEN ELECTRONICALLY SIGNED
AND SEALED BY M. LAYNE OWEN, PE ON
JANUARY 24, 2022 USING A DIGITAL SIGNATURE.
PRINTED COPIES OF THIS DOCUMENT ARE NOT
CONSIDERED SIGNED AND SEALED AND THE
SHA AUTHENTICATION CODE MUST BE VERIFIED
ON ANY ELECTRONIC COPIES.
Sheet No. 7 of 7