PERMFILE72290

• Permit No: C1994082A
• IBM Index Class Name: Permit File
• Doc Date: 10/6/2004
• Doc Name: Drainage and Sediment Control Plan
• Section_Exhibit Name: Tab 13 Attachment 13-12
• Media Type: D
• Archive: Yes

RIPRAP
NHERE REQUIRED
TYP/CAL L/NED CHANNEL
Flow Bottom Width Side Slope Depth Liner
Channel p Slope IBWI H:tV of Flow IDI Velocity Freeboard Total Depth Veg7D50
Icfsl IY.I Iltl Ifll Iftl h) IfPSI 121 Iftl Iltl hnl 131
YPM-1 58 2-f0 - 3.0 15 a.f L0 2.5 Veg.
if-Y5 f0 3.0 0.5 6a 10 15 6"
YMP-2 0.7 5-20 - 3.0 0.8 2 3 f 0 f g Veg'
YPM-3 3.d 5-15 - 3.0 1J 4.0 f.0 21 Veg.
f6-25 f.0 3.0 O,a 52 f0 1.a 6"
YPM-d a.0 5-f3 - 3.0 1J 0.0 f 0 2. f Veg'
14-20 f0 3.0 0.4 52 1.0 t4 6"
YPM-5 2.7 5-19 - 3.0 t 0 4.0 f 0 2.0 Veg.
20-26 f 0 3.0 0.3 4.8 10 1.3 6"
YPM-6 17.0 f-6 50 3.0 1.6 a2 f0 2.6 Veg.
6-f4 5.0 3.0 0.6 6.1 f0 f.6 6"
YPMJ 7.9 5-2B 5.0 3.0 0.3 4.8 1.0 1,3 6
YPM-8 4.3 5-12 - 3.0 Y.1 d.0 f.0 2.1 Veg.
13-25 f0 3.0 0.a 5l 10 1.a 6"
YPM-9 2.9 5-11 - 3.0 t0 3.9 t0 20 Veg.
fe-25 f.0 3.0 0.3 a.9 f.0 1.3 6"
YPM-f0 5.d 5-f0 - 3.0 f.2 a.0 1.0 2P Veg.
If-26 10 3.0 0.5 6.1 1.0 1.5 6'
YPM-11 1L2 2-10 5.0 3.0 0.6 5.6 t0 f.6 6"
9-18 2.0 3.0 0.8 6.0 f.0 f.8 Veg.
YPM-f2 6.0 18-25 2.0 3.0 NA NA NA f.8 Check Dams !d)
YPM-13 a. f 20-30 2 0 3.0 0.3 5.2 f.0 f.3 6"
NOTES:
1. Depth of flow basetl on minimum grade.
2. Velocity based on maximum grade
3. Riprap based on Padar method times 2.
4. Flow velocities in Channel sections above 18% will be controlled using check dams. Check dam locations
will be determined in the field. Check dams will be constructed from wood and/or rock.
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