Catalog Record
Lewiston Lake Dam and Powerplant Water Operations Monitoring Data from California Great Basin HAR
California Great Basin Region Water Operations Data for Lewiston Lake Dam and Powerplant
Generation Effort
California-Great Basin Water Operations Monitoring
Location
Lewiston Lake Dam and Powerplant
Themes
Water
Reclamation Project
Central Valley Project
Reclamation Program
Location Information
Location Name
Lewiston Lake Dam and Powerplant
Location Description
Lewiston Dam was built from 1960-1963 about 7 miles downstream from Trinity Dam. The dam creates an afterbay to Trinity Powerplant and diverts water by means of Clear Creek Tunnel to Whiskeytown Lake. It is an earthfill structure 91 feet high and 754 feet long, forming a reservoir with a capacity of 14,660 acre-feet.
Lewiston Lake is a reservoir created by Lewiston Dam on the Trinity River, near the towns of Weaverville and Lewiston in Trinity County, Calif. It is used for transbasin diversion to the Sacramento River and flood control, as well as for hydroelectric generation. It is a popular destination for fishing (rainbow, brown and brook trout), kayaking, and camping.
Location Parent
State(s)
California
Unified Region(s)
California-Great Basin
Timezone
PT
Elevation
1,870 ft
Vertical Datum
NAVD88
Coordinates (lat, long)
(40.727, -122.793)
Horizontal Datum
WGS84
