PERMFILE64785

• Permit No: C1980001A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: pages 2.5-1 to 2.5-107
• Section_Exhibit Name: 2.5 HYDROLOGY
• Media Type: D
• Archive: Yes

•

L
Table 2.5-6 -- SUMMARY OF FLOOD COMPUTATIONS
Sec.
Loca-
tion
Recur- 6 Hour Storm
rence -
(Yrs.) Qp
Yp Zp Qp Yp Zp
Colorado
Regionalization
Op Yp
2 -- -- -- 25 0.74 7283.8
5 30 0.82 7283.9 93 1.59 7284.7
1 10 69 1.34 7284.4 160 2.16 7285.3 201.6 4.21 (2.36)
25 127 1.90 7285.0 242 2.73 7285.8
50 200 2.45 7285.6 403 3.62 7286.7 338.0 4.57 (2.92)
100 288 3.02 7286.1 492 4.01 7287.1 399.1 4.75 (3.16)

2 -- -- -- 25
5 30 0.80 7221.8 93
10 69 1.31 7222.3 161
2 25 126 1.85 7222.8 243
50 199 2.79 7223.8 404
100 285 3.11 7224.1 493
3
4
5
2 --
5 30
10 69
25 125
50 198
100 285
2
5 30
10 68
25 124
50 197
100 283
2 --
5 31
10 72
25 141
50 207
100 298
0.88 7207.4
1.43 7207.9
2.00 7208.5
2.6 I 7209. I
3.17 7209.7
0.89 7157.3
1.43 7157.8
2.02 7158.4
2.62 7159.0
3.20 7159.6
1.02 7081.0
1.66 7081.7
2.33 7082.3
3.28 7083.3
3.80 7083.8
25
93
162
244
405
494
25
93
163
246
407
498
27
103
179
270
457
560
0.72 7221.7
1.55 7222.6
2.62 7223.6 204.1 4.08 (2.36) ~
2.96 7224.0
3.48 7224.5 342.1 4.42 (2.93)
3.72 7224.7 403.9 4.60 (3.17)
0.79 7207.3 ~
1.69 7 08.2 ~
2.31 ~~ 204.4 4.08 (2.37)
J ~ 7
2.93 7209.4 J /
~
3.80
4.21 7210.3
7210.7 342.5
404.4 4.42 (2.93)
4.60 (3.17)-~I ~ i ,
0.80 7157.2
1.72 7158.1
2.36 ~Z.1.58.8 205.6 4.51 (2.37)
2.96 7159.4
3.89
4
31 7160.3
7160
7 344.6
406
8 4.92 (2.94)
18}
5
I2 (3
t~ 1 L
;
. . . .
. J ~
.
0.94 7080.9
2.03 7082.0
3.04 7083.0 228.3 5.06 (2.43)
3.66 7083.7
4.40 7084.4 381.6 5.58 (3.01)
4.69 7084.7 450.1 5.80 (3.25)
~p - Peak discharge in cubic feel per second.
Yp - Depth at peak discharge in feet.
Zp - Water surface elevation at peak discharge, mean sea level.
2.5-20
24 Hour Storm
~.