McNary Dam Fishway Hydroelectric Project
The McNary Dam Fishway Hydroelectric Project near the north shore of the Columbia River is presently under construction. The existing auxiliary water supply system will be diverted through a new 10 MWe hydraulic turbine generating unit prior to entering the fishway, and the existing fishway water supply diffusers will be modified to serve as a turbine bypass system. The existing fishway diffusers will be modified to reduce the water velocity entering the fishway. These modifications will enhance the upstream passage of migrating anadromous fish and will reduce the mortality of smolts passing downstream. Additionally, 70 GWh will be generated from the fishway attraction water. This paper discusses the design of the new powerhouse and turbine bypass system.
- OSTI ID:
- 219962
- Report Number(s):
- CONF-9507190--
- Country of Publication:
- United States
- Language:
- English
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