7848

• UCREFRP Catalog Number: 7848
• Author: Burdick, B. D.
• Title: Minimum Flow Recommendation For Passage Of Colorado Squawfish And Razorback Sucker In The 2.3-Mile Reach Of The Lower Gunnison River
• USFW Year: 1997.
• USFW - Doc Type: Redlands Diversion Dam To The Colorado River Confluence.
• Copyright Material: NO

Table G.I. Predicted mean and maximum water depths for six discharges (100-600 cfs) determined from 27
transects conducted during March and April 1993 in the 2.3-mile reach of the lower Gunnison
River between the Redlands Diversion Dam (river mile 3.0) and the confluence with the
Colorado River (river mile 0.7). Bureau of Reclamation (BR) personnel conducted the
transects; mean and maximum water depths were predicted by the HEC-2 computer model. Note:
"n" denotes the number of observations; * denotes a critically shallow transect @ 300 cfs.
I
DISCHARGE

BR 100 cfs
Water 200 cfs

t 300 cfs
400 cfs
500 cfs
600 cfs
Transect
No. n Depth (ft)
Mean Ma Depth
(ft) Depthe(ft) Depthe(ft) Depthe(ft) D
the

x
n
mean
Max
n
Mean
Max
n
Mean
Max
n
Mean
Max
n ep
M (ft)

1
28
6.67
9.66
28
7.07
10.06
28
7.58
10.40
28
7.69
10.68
28
7.86
10.85
28 ean
8.02 Max
11.01
2 38 2.97 5.94 41 3.07 6.33 57 2.59 6.67 61 2.66 6.95 62 2.78 7.12 62 2.92 7
27
3 7 0.86 1.82 8 1.09 2.19 10 1.14 2.49 14 1.05 2.75 15 1.13 2.90 15 1.31 .
3.03
40 3 0.38 0.71 5 0.35 0.91 5 6AD 1 # 7 0.48 1.19 7 0
59 1
30 7
50 2 0.67 0.67 4 0.82 1.27 5 0.95 1.59 6 0.98 1.81 6 .
1
16 .
1
99 6 1
33

6
5
1.13
2.03
7
1.27
2.54
11
1.07
2.88
11
1.29
3.10
11 .
1.50 .
3.31
12 .
1.54 2.16
3.48
7 9 2.58 5.64 9 3.03 6.09 9 3.30 6.36 9 3.52 6.58 9 3
72 6
78 9 3
89

8
18
0.78
1.61
23
1.01
2.05
23
1.27
2.31
23
1.47
2.51
23 .
1.66 .
2.70
23 .
1.82 6.95
2.86
9 8 0.37 0.77 11 0.47 0.99 15 6'49 1< U. 21 0.52 1.35 21 0.54 1.38 23 D 9 1;
10 14 1.01 1.75 15 1.46 2.30 15 1.94 2.82 15 2.30 3.14 15 2.58 3.42 16 2.66 3.67
11 17 1.15 1.70 19 1.51 2.20 19 2.10 2.79 19 2.36 3.05 19 2.59 3.28 19 2.79 3.48
120 6 0.59 1.37 10 0.75 1.84 24 0.86 2.60 25 1.04 2.82 26 1.19 3.02 26 1.36 3.19
13 13 1.59 2.49 13 2.04 2.94 13 2.63 3.53 13 2.94 3.84 14 2.99 4.10 14 3.23 4.34
14 19 0.64 1.03 20 0.94 1.43 23 1.42 2.02 23 1.71 2.31 23 1.96 2.56 24 2.11 2.79
15 11 1.27 2.30 12 1.40 2.55 13 1.59 2.87 14 1.66 3.06 14 1.83 3.23 14 2.01 3.41
16 7 4.60 7.79 7 4.83 8.02 7 5.13 8.32 7 5.30 8.49 7 5.46 8.65 7 5.62 8.81
17 14 6.13 11.57 14 7.67 11.79 14 7.98 12.10 14 8.14 12.27 14 8.31 12.43 14 8.47 12.59
18 12 6.92 10.51 12 7.14 10.73 13 6.89 11.04 13 7.06 11.21 13 7.21 11.36 13 7.37 11.52
190 12 0.28 0.49 16 0.35 0.64 19 0 $ IOf 20 0.78 1.21 20 0.93 1.35 20 ] 06
? ?D