WSPC01242

• File Number: 8541
• Description: Rio Grande Basin-Rio Grande River Basin Water Projects-San Luis Valley Project
• State: CO
• Basin: Rio Grande
• Water Division: 3
• Date: 2/1/1955
• Title: A Report on Fish and Wildlife Resources-San Luis Valley Project-Rio Grande Division
• Water Supply Pro - Doc Type: Report/Study

Table 3--Partia.l Frequency Study of Flows at Wagon Wheel Gap, !.920-1951

.

lte.te of Flow Oct. Nov.
Noo of years
over 150 Cofos.
Historical 30 16
Routed 12 15
Noo of years
150-101 oof.so
Historical 2 16
Routed 13 8
No 0 of years
100-61 cof.s 0
Historical 0 0
Routed 4 3
No. of years
60=31 c.foSo
Historioal 0 0
Routed 3 1
No. of years
30-1 o.f.so
Historical 0 0
Routed 0 0
No 0 of years
zero flow
-"1rrstorical 0 0
Routed 0 5

Totals 32 32
32 32

.

Deo 0 Jano

8 5
10 6

12 10
2 2

12 16
4 2

o 1
1 9

o 0
1 0

o 0
14 13
32 32
32 32

Febo Maro

3 7
5 8

12 23
3 4

17 2
5 4

o 0
6 2

o 0
o 1

o 0
13 13
32 32
32 32

May Total

32 101
30 86

o 75
o 32

o 47
o 22

o 0
o 22

o 0
1 3

o 0
1 59
32 224
32 224

3], 0 Dewatering the Rio Grande from November to May and zero

flows from Deoember to March in about one-half of the years will

oompletely destroy fish habitat in the mile of river immediately be-

low the dam. Some trout will go upstream during reservoir releases

(Y")
~
..-l
..-l

.

and downstream when the Rio Grande is by-passed through the reservoir

ga tes. but many trout are expeoted to beoome stranded as a result of

the oontrolled stree.mflows.

Goose Creek to South Fork

320 The stree.mf'low in the 14 miles from Goose Creek to the South

Fork will be essentially the same as that between the dam site and

15