20200812 Ver 1_CC503 EROSION AND SEDIMENT CONTROL DETAILS_20200722

2
EE EEIEIED
3 4
5
FBI
9'
NO
NCDOT #5 OR # 57
WASHED STONE
SEDIMENT
STORAGE ZONE c'
FLOOD -
STORAGE Lq
ZONE
1, 1 3'
\ I TI I M A I /1 fl 11 I I A I fI
NATURAL GROUND
RIP -RAP HEADWALL, 1' MIN. HEIGHT FROM
ROAD SHOULDER ----
MAX. SEDIMENT DEPTH N.T.S.
NOTE: NOT APPLICABLE FOR JURISTICTIONAL STREAMS
MAINTENANCE
1. INSPECT ROCK PIPE INLET PROTECTION AT LEAST WEEKLY AND AFTER
SIGNIFICANT (1/2 INCH OR GREATER) RAINFALL EVENT AND REPAIR
IMMEDIATELY. REMOVE SEDIMENT AND RESTORE THE SEDIMENT STORAGE
AREA TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS
ACCUMULATED TO ONE-HALF THE DESIGN DEPTH OF THE TRAP. PLACE
THE SEDIMENT THAT IS REMOVED IN THE DESIGNATED DISPOSAL AREA
AND REPLACE THE CONTAMINATED PART OF THE GRAVEL FACING.
2. CHECK THE STRUCTURE FOR DAMAGE. ANY RIPRAP DISPLACED FROM
THE STONE HORSESHOE MUST BE REPLACED IMMEDIATELY.
3. AFTER ALL THE SEDIMENT- PRODUCUNG AREAS HAVE BEEN
PERMANENTLY STABILIZED, REMOVE THE STRUCTURE AND ALL THE
UNSTABLE SEDIMENT. SMOOTH THE AREA TO BLEND WITH THE
ADJOINING AREAS AND PROVIDE PERMANENT GROUND COVER (SURFACE
STABILIZATION).
CONSTRUCTION SPECIFICATIONS
1. CLEAR THE AREA OF ALL DEBRIS THAT MIGHT HINDER EXCAVATION AND
DISPOSAL OF SPOIL.
2. INSTALL THE CLASS B RIPRAP IN A SEMI -CIRCLE AROUND THE PIPE
INLET. THE STONE SHOULD BE BUILT UP HIGHER ON EACH END WHERE
IT TIES INTO THE EMBANKMENT. THE MINIMUM CREST WIDTH OF THE
RIPRAP SHOULD BE 3 FEET, WITH A MINIMUM BOTTOM WIDTH OF 11
FEET. THE MINIMUM HEIGHT SHOULD BE 2 FEET, BUT ALSO 1 FOOT
LOWER THAN THE SHOULDER OF THE EMBANKMENT OR DIVERSION.
3. A 1 FOOT THICK LAYER OF NC DOT #5 OR #57 STONE MUST BE
PLACED ON THE OUTSIDE SLOPE OF THE RIPRAP.
4. THE SEDIMENT STORAGE AREA SHOULD BE EXCAVATED AROUND THE
OUTSIDE OF THE STONE HORSESHOE 18 INCHES BELOW NATURAL
GRADE.
5. WHEN THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED, FILL
DEPRESSION AND ESTABLISH FINAL GRADING ELEVATIONS, COMPACT AREA
PROPERLY, AND STABILIZE WITH GROUND COVER.
CULVERT INLET PROTECTION CIP
NOT TO SCALE (NCDEQ E & S CONTROL MEASURE)
NC 6.55
OUTLET CONSTRUCTION SPECIFICATIONS
3
WIDTH = La +dO 1
PLAN - NO WELL DEFINED CHANNEL
LENGTH (La) = 6'
SECTION B-B
MAINTENANCE
1. INSPECT RIPRAP OUTLET STRUCTURES WEEKLY AND AFTER
SIGNIFICANT (1/2 INCH OR GREATER) RAINFALL EVENTS TO
SEE IF ANY EROSION AROUND OR BELOW THE RIPRAP HAS
TAKEN PLACE, OR IF STONES HAVE BEEN DISLODGED.
IMMEDIATELY MAKE ALL NEEDED REPAIRS TO PREVENT
FURTHER DAMAGE.
2
3
4.
5.
6.
7.
8.
9.
ENSURE THAT THE SUBGRADE FOR THE FILTER AND RIPRAP FOLLOWS THE REQUIRED LINES
AND GRADES SHOWN IN THE PLAN. COMPACT ANY FILL REQUIRED IN THE SUBGRADE TO THE
DENSITY OF THE SURROUNDING UNDISTURBED MATERIAL. LOW AREAS IN THE SUBGRADE ON
UNDISTURBED SOIL MAY ALSO BE FILLED BY INCREASING THE RIPRAP THICKNESS.
THE RIPRAP AND GRAVEL FILTER MUST CONFORM TO THE SPECIFIED GRADING LIMITS SHOWN
ON THE PLANS.
FILTER CLOTH MUST MEET DESIGN REQUIREMENTS AND BE PROPERLY PROTECTED FROM
PUNCHING OR TEARING DURING INSTALLATION. REPAIR ANY DAMAGE BY REMOVING THE RIPRAP
AND PLACING ANOTHER PIECE OF FILTER CLOTH OVER THE DAMAGED AREA. ALL CONNECTING
JOINTS SHOULD OVERLAP SO THE TOP LAYER IS ABOVE THE DOWNSTREAM LAYER A MINIMUM
OF 1 FOOT. IF THE DAMAGE IS EXTENSIVE, REPLACE THE ENTIRE FILTER CLOTH.
RIPRAP MAY BE PLACED BY EQUIPMENT, BUT TAKE CARE TO AVOID DAMAGING THE FILTER.
THE MINIMUM THICKNESS OF THE RIPRAP SHOULD BE 1.5 TIMES THE MAXIMUM STONE
DIAMETER BUT NOT LESS THAN 18-INCHES.
RIPRAP MAY BE FIELD STONE OR ROUGH QUARRY STONE. IT SHOULD BE HARD, ANGULAR,
HIGHLY WEATHER -RESISTANT AND WELL GRADED.
CONSTRUCT THE APRON ON ZERO GRADE WITH NO OVERFILL AT THE END. MAKE THE TOP
OF THE RIPRAP AT THE DOWNSTREAM END LEVEL WITH THE RECEIVING AREA OR SLIGHTLY
BELOW IT.
ENSURE THAT THE APRON IS PROPERLY ALIGNED WITH THE RECEIVING STREAM. IF A CURVE
IS NEEDED TO FIT SITE CONDITIONS, PLACE IT IN THE UPPER SECTION OF THE APRON.
IMMEDIATELY AFTER CONSTRUCTION, STABILIZE ALL DISTURBED AREAS WITH VEGETATION IN
ACCORDANCE WITH SEEDING REQUIREMENTS.
RIP RAP DESIGN CALCULATION TABLE
Upstream
Structure
Downstream
Structure
Pipe Diameter
(ft)
Max Q (ft31s)
TW (ft)
Gravity (ftls2)
D50 Calc (in)
D50 (in)
Apron Length (ft)
Apron Depth (in)
Width at Start of Apron (ft)
Width at End of Apron (1:3 Angle) (ft)
112
110
1.25
2.56
0.5
32.2
1.23
5
5.0
17.5
3.75
7.08
116
114
1.25
3.56
0.5
32.2
1.91
5
5.0
17.5
3.75
7.08
200
200A
3
29.35
1.2
32.2
4.13
5
12.0
17.5
9.00
17.00
302
300
1.5
5.56
0.6
32.2
2.27
5
6.0
17.5
4.50
8.50
406
404
1.25
2.28
0.5
32.2
1.06
5
5.0
17.5
3.75
7.08
410A
410E
1.5
9.7
0.6
32.2
4.76
5
6.0
17.5
4.50
8.50
808
800
1.25
1.97
0.5
32.2
0.87
5
5.0
17.5
3.75
7.08
816
814
1
1.29
0.4
32.2
0.83
5
4.0
17.5
3.00
5.67
510
514
1.25
5.87
1
32.2
1.86
5
5.0
17.5
3.75
7.08
522
900
6
211.83
2.4
32.2
11.44
14
36.0
30.8
18.00
42.00
712
713
1.25
2.86
0.5
32.2
1.43
5
5.0
17.5
3.75
7,08
713A
713B
1.25
0.19
0.5
32.2
0.04
5
5.0
17.5
3.75
7.08
800H
8001
4
65.31
1.6
32,2
6.14
10
20.0
24.0
12,00
25.33
906
904
5.5
206.94
2.2
32.2
13.59
14
33.0
30.8
16.50
38.50
916
914
2
9.98
0.8
32.2
2.53
5
8.0
17.5
6.00
11.33
920
918
1.5
5.94
0.6
32.2
2.48
5
6.0
17.5
4.50
8.50
213
2
5
138
2
32.2
9.89
10
25.0
24.0
15.00
31.67
*1112
*1110
1.25
0.44
0.5
32.2
0.12
5
5.0
17.5
3.75
7.08
*Pipe is assumed to be flowing full -
OUTLET PROTECTION
NOT TO SCALE
(NCDEQ E & S CONTROL MEASURE)
NC 6.41
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1317 EXECUTIVE BLVD.
SUITE 300
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HOME OFFICE
1196ROOKSTOWN AVE SUITE PHI
WINSTON-SALEM, NC 27101
3387441636 www davenP11.11d.- q/E INFO
NCBELS FIRM LICENSE N0. C-2522
APPROVED
FOR COMMANDER NAVFAC
ACTIVITv
APPROVED BY EMILY SYLVESTER,
DIRECTOR, INSTALLATION DEVELOPMENT
AT MCB CAMP LEJEUNE. VIA EMAIL
SATISFACTORY TO DATE 6 2 2020
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=PROJFCT NO.: 1374744
CONSTR. CONTR. NO
TAVFAC DRAWING NO.
12816430
SHEET 100 OF 547
CC503
8
1 ' 2 ' 3
UNCLASSFED
5
DRAWFORM REVISION: 07 AUG 2018