PERMFILE52734

• Permit No: C1980005A
• IBM Index Class Name: Permit File
• Doc Date: 1/26/2005
• Doc Name: Channel PM-12, PM-12A Profiles
• Section_Exhibit Name: Tab 7 Exhibit 7-20 Sheet 12 of 23
• Media Type: D
• Archive: Yes

E
U
0
7200
7100
Z
O
H
g 7000
W
J
W
RECEIV
2094
Dlpis ;an
•�h ald Geology
TYPICAL LINED CHANNEL
NOT TO SCALE
500
INTERSECTION
DAI_tA
•86
1500
DISTANCE (FT)
Sll PM -12 CHANNEL PROFILE
SCALE
loo' o lop. zoo•
HORIZONTAL R VERTICAL
2000
NOTES:
1.) CHANNEL WAS DESIGNED TO SAFELY CONVEY RUNOFF RESULTING FROM THE
10 YEAR, 24 HOUR STORM EVENT.
2.) DESIGN FLOW ROUNDED TO NEAREST WHOLE CPS IPM -12 UPPER/ FROM SEDCAD
HYDROLOGIC ANALYSIS.
3.) DEPTH OF FLOW BASED ON MINIMUM GRADE.
4.1 VELOCITY BASED ON MAXIMUM GRADE.
5.) VEGETATION LINED CHANNELS, USE GRASS MIXTURE.
6.) GRAVEL LINED CHANNELS I3 INCH, MINUS MATERIAL).
7200
7100
v
Z
O
f=
7000
W
J
W
6900
2543
PROFESSIONAL ENGINEER'S STATEMENT
/, Dorfief ✓
Design Flow
Slo a
Bottom WWth
Sitle Slope
Depth of
Velocity
Freeboard
Total Depth
Rlprep D50
Channel
0, (CIS
I
IBWI
IH:1V1
Flow ID If1)
I1psl
Iftl
Iftl
hnl
111
111 AND 121
Inl
131
141
151 AND 161
PM-f2
L OWER
4,3
2 -10
2.0
3
1 It
3.4
0.3
14
Veg
PM -12
LOWER
4.3
10.1 -12
5.0
3
0.1
4,B
0.3
015
Gravel
NOTES:
1.) CHANNEL WAS DESIGNED TO SAFELY CONVEY RUNOFF RESULTING FROM THE
10 YEAR, 24 HOUR STORM EVENT.
2.) DESIGN FLOW ROUNDED TO NEAREST WHOLE CPS IPM -12 UPPER/ FROM SEDCAD
HYDROLOGIC ANALYSIS.
3.) DEPTH OF FLOW BASED ON MINIMUM GRADE.
4.1 VELOCITY BASED ON MAXIMUM GRADE.
5.) VEGETATION LINED CHANNELS, USE GRASS MIXTURE.
6.) GRAVEL LINED CHANNELS I3 INCH, MINUS MATERIAL).
7200
7100
v
Z
O
f=
7000
W
J
W
6900
2543
PROFESSIONAL ENGINEER'S STATEMENT
/, Dorfief ✓
Design Flow
Sloe
Bottom 'Width
Sid. Slops
Depth of
Velocity
Freaboartl
Total Depth
Riprap DSD
Channel
a ofsl
1
IBWI
IH:1V1
Flow IN Ift1
(fps)
ft)
(ft)
lint
hl
111 AND 121
Iftl .
131
141
151 AND lei
PM-12
UPPER
t.0
2 -10
2.0
3
O.B
iJ
0,3
L1
Vag
PM -12
UPPER
t.0
10.1 -14
2.0
3
0.1
3.9
0.3
0.4
Gravel
NOTES:
1.) CHANNEL WAS DESIGNED TO SAFELY CONVEY RUNOFF RESULTING FROM THE
10 YEAR, 24 HOUR STORM EVENT.
2.) DESIGN FLOW ROUNDED TO NEAREST WHOLE CPS IPM -12 UPPER/ FROM SEDCAD
HYDROLOGIC ANALYSIS.
3.) DEPTH OF FLOW BASED ON MINIMUM GRADE.
4.1 VELOCITY BASED ON MAXIMUM GRADE.
5.) VEGETATION LINED CHANNELS, USE GRASS MIXTURE.
6.) GRAVEL LINED CHANNELS I3 INCH, MINUS MATERIAL).
7200
7100
v
Z
O
f=
7000
W
J
W
6900
2543
PROFESSIONAL ENGINEER'S STATEMENT
/, Dorfief ✓
Keuscher, state fhaf this channel
design was
prepared un upervision and
1 a// the information
EOf Is true
and correct
to edge
I and information.
1111710 Y
Dole
Da 'el J er. _CD E. 3336
SENECA COAL
COMPANY
PROJECT:
DRAWING TITLE:
CHANNEL PM -12
PROF /LE
© M W H A:LE, 12 0l 23 IT NO
SCALE: EXHIBIT No.
As SN— ]•2O