The Simulation of Variable Release Temperatures from the Rock Creek-Cresta Project Using the USFWS Instream Temperature Model

by W. S. Lifton, Woodward-Clyde Consultants, Walnut, Creek, CA, USA,
K. A. Voos, Woodward-Clyde Consultants, Walnut, Creek, CA, USA,
D. A. Gilbert, Woodward-Clyde Consultants, Walnut, Creek, CA, USA,



Document Type: Proceeding Paper

Part of: Water Power '87

Abstract:

Pacific Gas and Electric Company (PGandE) operates the Rock Creek-Cresta Project on the North Fork Feather River (NFFR) for hydroelectric generation under authority of Federal Energy Regulatory Commission (FERC) License 1962. The primary emphasis of this paper is on the application of a technique to identify the magnitude of stream temperature reductions as well as fish habitat benefits which could be derived from any combination of release temperature and flows. The paper also focuses on the usefulness of this approach in analyzing cost and operating trade-offs in obtaining fishery benefits from either cooler release temperatures or higher instream flows, an important consideration in project negotiations with resource management agencies.

Subject Headings: Temperature distribution | Hydro power | Fish and fishery management | Temperature effects | Streamflow | Rivers and streams | Computer models

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