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ORIGINAL
GROUND
ELEV.
EL =A
Area 2
EL=
(EXCAVATED)
\ 1 All
340 � r
~� - -- LIMITS \ \QF AME`NOMENT FOR-DDPONAt -°
~``- -CLEAR IN G'\A -1D GRADING - ,ASSOCIATED WITH --� ''°° __ __
CU�TR-T\ REPLA�EIENT. - - --
r
'q
FILTER CLOTH \ ORIGINAL
GROUND
ELEV.
**
*SEE PLATE 3.13 -1 COARSE AGGREGATE CLASS I RIPRAP
CROSS SECTION OF OUTLET
CLASS I RIPRAP
LENGTH (IN FEET) = 2'
6 X DRAINAGE AREA
(IN AC.)
DIVERSION
DIKE
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i
* *COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5
OUTLET (PERSPECTIVE VIEW)
Sediment Trap Design Data
DRY STORAGE D2
A
67 CU. YD. /ACRE
EL =B
if
Area 1
\
WET STORAGE
67 CU. YD. /ACRE
DA
D1
EL=
(EXCAVATED)
\ 1 All
340 � r
~� - -- LIMITS \ \QF AME`NOMENT FOR-DDPONAt -°
~``- -CLEAR IN G'\A -1D GRADING - ,ASSOCIATED WITH --� ''°° __ __
CU�TR-T\ REPLA�EIENT. - - --
r
'q
FILTER CLOTH \ ORIGINAL
GROUND
ELEV.
**
*SEE PLATE 3.13 -1 COARSE AGGREGATE CLASS I RIPRAP
CROSS SECTION OF OUTLET
CLASS I RIPRAP
LENGTH (IN FEET) = 2'
6 X DRAINAGE AREA
(IN AC.)
DIVERSION
DIKE
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J
i
* *COARSE AGGREGATE SHALL BE VDOT #3, #357 OR #5
OUTLET (PERSPECTIVE VIEW)
Sediment Trap Design Data
No.
A
B
C
H (ft.)
Z (ft.)
Weir
Length
DA
Wet Vol.
D1
Wet Vol.
Dry Vol.
D2
Dry Vol.
Velocity
Depth
SCC Al
EC -2 Matting
2.0'
18'
(ft.)
(Acs.)
(Reg.)
(ft.)
Cy (Prov.)
(Reg.)
(ft.)
Cy (Prov.)
1
321
320
317
2
2.0
4
0.29
19.4
3
20
19.4
1
25
2
320
318
315
3
2.0
5
0.77
51.6
3
54
51.6
2
65
i TEMPORARY SEDIMENT TRAP ST.
C1 Not To Scale
-SCOPE OF WORX\ INCLUDES_CtE-ARtNG -OF_ TREES; ,° f
,' \\ INSTAL ATION OF \SEDIMENT TRAPS, DIVERS04S,
_---- - - -AkD PERMANENT CONY Y�AN- GE-CTTANNELS; AND
CU��(ERT REPA\R AND EXTENSION, AS APPRQVE13
BY VDOT.
- - -- - -REFER TO APPR`QVED MASS GRADLNG' -FLAN SET
FOR `SITE LEGEND, N-ARRATIVE DETAILS, AND,---
\� NOTES.
PIPE OUTLET CONDITIONS ° f
AAA `
3d,
PIPE OUTLET TO FLAT
AREA WITH NO DEFINED
CHANNEL
L
o%
11111 Mill
6"
SECTION A —A
FILTER CLOTH KEY IN 6 " -9 "; RECOMMENDED FOR ENTIRE PERIMETER
NOTES: 1. APRON LINING MAY BE RIPRAP, GROUTED RIPRAP, GABION
BASKET, OR CONCRETE.
2. La IS THE LENGTH OF THE RIPRAP APRON AS CALCULATED
USING PLATES 3.18 -3 AND 3.18 -4.
3. d = 1.5 TIMES THE MAXIMUM STONE DIAMETER, BUT NOT
LESS THAN 6 INCHES.
/
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Ditch Sections
Section
Lining
Channel
Channel
Left Side
Rig
Right
Side
10 —Yr
10 —Yr
Depth
Width
Slope
Slope
Velocity
Depth
SCC Al
EC -2 Matting
2.0'
18'
3:1
6:1
3.24
0.70
TYPICAL DITCH SECTION DETAIL
Not To Scale
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