WSPC05873

• File Number: 8402.400.10
• Description: Platte River Basin-River Basin Basic Hydrology-Transmountain Diversions Imports-Blue South Platte
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 1/1/3000
• Title: Blue South Platte Project 1942-1955-Proposed Blue South Platte Project
• Water Supply Pro - Doc Type: Report/Study

D~,....'n"I[P"T"'''

Ca....~.PDNal..c...LY

.

GAME AND FISH DEPARTMENT

COLORADO

5 U." ICT..__n_....u_..............__.........

- 2 -

S. Diversion of 271,)00 acre feet anmally, equal to a yearly average flow
of approx:i.Eatel:-~ 37u second feet, from the Blue river and its tributaries
to the Eastern Slope. This amount is more than half of the annual average
of u28,300 acre feet passinp through Green ~untaln reservoir. Collec-
tion would be accOOlplished by canals interceptinr flows of the numerous
small streams along the Eastern slope of the Gore range and Western slope
of the Williams River Yountains plus diversions from the Blue and Snake
rivers and tenmile creek.

':;uch diversions, especially from the small tributary streams, lfOuld large-
ly destroy stream. fishing in this area. Properly regulated flows from
Termrl.1e and Snake reservoirs 'nOuld materially reduce this loss.

6. Construction of Tenmi1e reservoir five miles southwest of . Frisco, with
141,500 acre feet storage capacity.

Considerable fluctuation, plus fIlling with the polluted waters of Ten-
mile creek, would greatly reduce fisheries values within this reservoir.
!t would serve, however, to settle out much of the polluting materials
so that possible releases might create favorable stream habitat downstream
to Green lIountain reservoir.

7. Construction of Blue reservoir on the Blue river four and a half miles south
of Dillon, with LO,OOO acre feet capacity.

Fluctuation would be severe on this reservoir, greatly reducing possible
fisheries values.

6. Construction of Snake reservoir on the Snake river two miles East of
Dillon, with 272,000 acre feet capacity.

Th~s reservoir would be conpected by submerged tunnel to the Blue reser-
voir, so that they would operate as a single body of water. .'ih.ile the
storage would be considerable, 80 would the nuctuation. Important fish-
eries values could be expected despite adverse nuctuationa.

9. Diversion of )0,600 acre feet annually, equal to a yearly averar,e flow
of approximtcl~' U2 second feet, froI:1 the upper Williams (Williams Fork
of the Colorado) river, via canal and turmel to the Snake reservoir.

I.oss of these flows would be of detriment to fisheries along the entire
length of this stream.

EASTrnN SlDPE

1. Chan.'1el "improvements" o~ the North Fork of the South Platte from two
and a half miles above Grant, where lre'stern slope waters would be deliv-
ered from the Snake reservoir via the Montezuma tun.~l, to the village of
South Platte.

2565