Dworshak Dam and Reservoir

Project Description

• Stream: North Fork Clearwater River
• Location: Ahsahka, Idaho
• Type of Project: Storage
• Authorized Purpose: Flood Control, Power, Navigation
• Other Uses: Fishery, Recreation

Hydrologic Data

• Drainage area = 2,440 sq mi
• Maximum historic inflow = 100,000 cfs (unregulated)
• Lake Elevation
       Maximum pool = 1,604.7 ft
       Full pool = 1,600.0 ft
       Minimum pool = 1,445.0 ft
• Usable Storage (1,445.0 to 1,600.0) = 2,015,800 AF

Powerhouse

• Number of units.................................3
• Nameplate capacity...........................400 MW
• Continuous overload capacity............460 MW
• Hydraulic capacity.............................10,500 cfs