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Title: Alturas Lake Creek Flow Augmentation, 1986 Final Report.

Technical Report ·
DOI:https://doi.org/10.2172/6223200· OSTI ID:6223200
; ;  [1]
  1. Sawtooth National Forest, Twin Falls, ID

Two alternatives were outlined in the first statement of work as possibilities for flow augmentation in Alturas Lake Creek. The alternatives were to raise the level of Alturas Lake and to acquire necessary water rights in Alturas Lake Creek. The first alternative considered in the study was raising the water level at Alturas Lake with a low head dam. Raising Alturas Lake, appeared feasible in that it provided the necessary fish flows in Alturas Lake Creek. However, raising the level of Alturas Lake has adverse effects to other resources and forced pursuing the second alternative as defined in this report. Some of these effects included: flooding Smokey Bear boat ramp, inundation of recreation beaches for extended periods, flooding of the campground and some of the road system, potentially contaminating the quality of lake water from flooded toilet vaults, and destroying the conifer canopy around the lake. Maintenance and operation costs of the dam, along with the need to have a watermaster to distribute flows over the course of the irrigation season, raised additional concerns that detracted from this alternative. The second alternative considered was the acquisition of water rights. This led to an appraisal of the water right values which was completed by BPA with a comparison appraisal done by the Forest Service.

Research Organization:
Sawtooth National Forest
Sponsoring Organization:
United States. Bonneville Power Administration.
DOE Contract Number:
1986BP62661
OSTI ID:
6223200
Report Number(s):
DOE/BP-62661-1; R&D Project: 198341500; ON: DE89010854
Resource Relation:
Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English