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37SIN. 6878L T ROCK
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UTILITY EASEMENT
MDBv 2069, PG. 1119
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CHANNEL INSTALLATION
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.. ij 4"-s" CHANNELS 3 AND 4 SHALL BE LINED WITH
4" .```
. . .
RIPRAP. THESE CHANNELS SHALL BE INSTALLEE
\/ WITH FABRIC UNDER RIPRAP AS SHOWN IN THIS
DETAIL
1. PREPARE SOIL BEFORE INSTALLING BLANKETS, INCLUDING ANY NECESSARY APPLICATION OF LIME, FERTILIZER, AND SEED. NOTE: WHEN USING CELL-O-SEED DO NOT SEED
PREPARED AREA. CELL-O-SEED MUST BE INSTALLED WITH PAPER SIDE DOWN.
2. BEGIN AT THE TOP OF THE CHANNEL BY ANCHORING THE BLANKET IN A 6" (15 CM DEEP X 6" 15 CM WIDE TRENCH WITH APPROXIMATELY 12" 30 CM OF BLANKET
EXTENDED BEYOND THE UP -SLOPE PORTION OF THE TRENCH. ANCHOR THE BLANKET WITH A ROW OF STAPLES/STAKES APPROXIMATELY 12" (30 CM) APART IN THE
BOTTOM OF THE TRENCH. BACKFILL AND COMAPCT THE TRENCH AFTER STAPLING. APPLY SEED TO COMPACTED SOIL AND FOLD REMAINING 12 (30 CM) PORTION OF
BLANKET BACK OVER SEED AND COMPACTED SOIL. SECURE BLANKET OVER COMPACTED SOIL WITH A ROW OF STAPLES/STAKES SPACED APPROXIMATELY 12" (30 CM)
ACROSS THE WIDTH OF THE BLANKET.
3. ROLL CENTER BLANKET IN DIRECTION OF WATER FLOW IN BOTTOM OF CHANNEL. BLANKETS WILL UNROLL WITH APPROPRIATE SIDE AGAINST THE SOIL SURFACE. ALL
BLANKETS MUST OE SECURELY FASTENED TO SOIL SURFACE BY PLACING STAPLES STAKES IN APPROPRIATE LOCATIONS AS SHOWN IN THE STAPLE PATTERN GUIDE.
WHEN USING THE DOT SYSTEM , STAPLES/STAKES SHOULD BE PLACED THROUGH EACH OF THE COLORED DOTS CORRESPONDING TO THE APPROPRIATE STAPLE PATTERN.
4. PLACE CONSECUTIVE BLANKETS END OVER END (SHINGLE STYLE) WITH A 4" - 6" (10 CM -15 CM) OVERLAP. USE A DOUBLE ROW OF STAPLES STAGGERED 4" (10 CM)
APART AND 4" (10 CM) ON CENTER TO SECURE BLANKETS.
5. FULL LENGTH EDGE OF BLANKETS AT TOP OF SIDE SLOPES MUST BE ANCHORED WITH A ROW OF STAPLES/STAKES APPROXIMATELY 12" (30 CM) APART IN A 6" (15 CM)
DEEP X 6" 15 CM WIDE TRENCH. BACKFILL AND COMPACT THE TRENCH AFTER STAPLING.
6. ADJACENT BLANKETS MUST BE OVERLAPPED APPROXIMATELY 2" 5" (5 CM 12.5 CM) (DEPENDING ON BLANKET TYPE) AND STAPLED.
7. IN HIGH FLOW CHANNEL APPLICATIONS, A STAPLE CHECK SLOT IS RECOMMENDED AT 30 TO 40 FOOT (9 M - 12 M) INTERVALS. USE A DOUBLE ROW OF STAPLES
STAGGERED 4" (10 CM) APART AND 4" (10 CM) ON CENTER OVER ENTIRE WIDTH OF THE CHANNEL.
/ 8. THE TERMINAL END OF THE BLANKETS MUST BE ANCHORED WITH A ROW OF STAPLES/STAKES APPROXIMATELY 12" (30 CM) APART IN A 6" (15 CM) DEEP X 6" (15 CM)
WIDE TRENCH. BACKFILL AND COMPACT THE TRENCH AFTER STAPLING.
NOTE:
*IN LOOSE SOIL CONDITIONS, THE USE OF STAPLE OR STAKE LENGTHS GREATER THAN 6" (15 CM) MAY BE NECESSARY TO PROPERLY ANCHOR THE BLANKETS.
A NOTE: 20" 3.3'
B C CRITICAL POINTS * HORIZONTAL STAPLE SPACING SHOULD BE ALTERED
IF NECESSARY TO ALLOW STAPLES TO SECURE THE
A. OVERLAPS AND SEAMS CRITICAL POINTS ALONG THE CHANNEL SURFACE.
/ B. PROJECTED WATER LINE
C. CHANNEL BOTTOM/SIDE ** IN LOOSE SOIL CONDITIONS, THE USE OF STAPLE
SLOPE VERTICES OR STAKE LENGTHS GREATER THAN 6" (15 cm) MAY
BE NECESSARY TO PROPERLY ANCHOR THE BLANKETS.
PUNTOS CRITICOS NOTA:
A. TRASLAPES Y JUNTAS * LA SEPARACION HORIZONTAL DE LAS GRAPAS SE DEBE ALTERAR
B. LINEAS DE AGUA PROYECTADA SI SE NECESITA, PAPA PERMITIR QUE LAS GRAPAS ASEGUREN LOS
C. FONDO DEL CANAL/VERTICES PUNTOS CRITICOS A LO LARGO DE LA SUPERFICIE DEL CANAL.
DE LAS PENDIENTES LATERALES ** EN CONDICIONES DE SUELO SUELTO, PUEDE QUE SE NECESITEN
Ditch Schedule
2.0'
AETAL
JAPLE
TYPICAL)
PECIFIED MATTING
3EE TABLE)
Channel
d.
Bottom
Width
(ft)
Drng.
Area
(Ac)
Runoff
Coeff.
C
Rainfall
Intensity
1-10*
Total
Flow
Qi (cfs)
Mannings
number
Channel
Slope
(ft/ft)
Ditch
Length
(ft)
Normal
Depth
(ft)
Velocity
(ft/sec)
Tractive Force
(psf)
Channel Armor recommendations
Note: install check dams during construction
to reduce erosion, see plan.
PCH #1
2
0.55
0.50
6.84
1.88
0.10
design: 0.023
262
0.42
1.05
0.60
Temp: NAG S75 or Equal - Staple pattern D
Perm: established grass
PCH #2
2
0.61
0.50
6.84
2.09
0.10
design: 0.033
326
0.48
1.28
0.98
1 Temp: NAG S75 or Equal - Staple pattern D
Perm. established grass
PCH #3
4
3.50
0.50
6.84
10.26
0.10
design: 0.038
811
0.80
1.99
1.91
Temp: SC150 or Equal - Staple pattern D
Perm: established grass
PCH #4
2
1.37
0.50
6.84
4.69
0.10
design: 0.058
594
0.62
1.96
2.25
Temp: C125 or Equal - Staple pattern D
Perm: established grass
PCH #5
2
1.00
0.50
6.84
3.42
0.10
design: 0.052
417
0.54
1.73
1.77
Temp: NAG DS150 or Equal - Staple pattern D
Perm: established grass
PCH #6
2
0.55
0.50
6.84
1.88
0.10
design: 0.028
271
0.47
1.17
0.82
Temp: NAG S75 or Equal - Staple pattern D
Perm: established grass
PCH #7
2
1.23
0.50
6.84
4.21
0.10
design: 0.035
672
0.67
1.58
1.45
Temp: NAG S75 or Equal - Staple pattern D
Perm: established grass
PCH #8
2
0.97
0.50
6.84
3.32
0.10
design: 0.051
435
0.54
1.70
1.72
Temp: NAG DS150 or Equal - Staple pattern D
Perm: established grass
PCH #9
2
1.60
0.50
6.84
5.47
0.10
design: 0.051
435
0.69
1.95
2.20
Temp: NAG C125 or Equal - Staple pattern D
Perm: established grass
PCH #10
2
5.98
0.50
6.84
20.45
0.10
design: 0.020
722
1.57
1.93
1.96
Temp: NAG SC150 or Equal - Staple pattern D
Perm: established grass
PCH #11
2
1 0.26
0.50
6.84
0.89
0.10
design: 0.020
16C
0.35
0.84
0.43
1Temp: NAG S75 or Equal - Staple pattern D
Perm: established grass
*CALCULATIONS BASED UPON 10 YR STORM EVENT FROM NOAA RAINFALL CHANNEL CALCULATIONS
INTENSITY DATA FOR PERMANENT DITCHES
**CHANNEL NUMBERING SHOWN ON THIS SHEET. NOT TO SCALE
***CALCULATIONS BASED OFF NAG CHANNEL ANALYSIS
ALL VEGETATED SWALE CONVEYANCES SHALL BE PLANTED WITH THE
FOLLOWING GRASS TYPES. NO OTHER TYPES SHALL BE USED.
• BERMUDA GRASS
• TALL FESCUE
• BAHIAGRASS
• KENTUCKY BLUE GRASS
• GRASS -LEGUME MIXTURE
3"
SHOULDER
1" PER FT
S�
50'
RIGHT OF WAY
26'
PAVEMENT
-A*-1 /4" PER FT. 1 /4" PER FT
3" 5"
SHOULDER I DITCH
s a
6„
2" S9.5B
8" ABC
LOCAL RESIDENTIAL ROAD
TERRAIN CLASSIFICATION = ROLLING
10'
UTILITY EASEMENT
CHANNEL BOTTOM
WIDTH VARIES -SEE
SHEET C-6.01 FOR
WIDTH
NOTES:
LONGITUDINAL SLOPE OF
ROADWAY MAY VARY.
6' SHOULDER TO BE PROVIDED
ON BOTH SIDES OF ROADWAY
GREEN
MOUNTAIN
ENGINEERING, PLLC
7A WENDY CT
GREENSBORO, INC 27409
Tel: 336.294.9394
CERTIFICATE #P-0826
www.greenmountainengineers.com
SEALS:
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,may �'p'yyy� �gp'd"^„�q� t• `.
APPLICANT/DEVELOPER:
WBY4, INC
7349 W. FRIENDLY AVE., STE.H
GREENSBORO, NC 27410
ATTN: WILL YEARNS
OFFICE: 336.202.8514
EMAIL: wyearns@mygranvillehome.com
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SITE AREA: 34.1 f ACRES
PARCEL ID: 6878-07-7067
DESIGNED BY JDY
CHECKED BY: VCT
DATE: 2021.10.22
PROJECT: 20-066
REVISIONS:
IV)14 MUST co
OQ-O� �Lrry PRO a0���
Cj 0 bti0�
Q j� 9O�A
BEFORE YOU DIG!
CALL 811 N.C. ONE -CALL CENTER
IT'S THE LAW!
SHEET TITLE:
VEGETATED
CONVEYANCES
DRAINAGE AREAS
SCALE: 1 " = 100'
SHEET NO.:
C-6,01