Ross Dam and Lake

Project Description

• Basin: Puget Sound
• Stream: Skagit River (RM 105.2)
• Location: Rockport, Washington
• Owner: City of Seattle
• Type of Project: Storage
• Authorized Purpose: Power
• Other Uses: Flood Control

Hydrologic Data

• Reservoir Elevation
       Normal maximum pool = 1,602.5 ft
       Normal minimum pool = 1,475.0 ft
       Flood control pool = 1,590.0 ft
• Usable Storage = 1,052,000 AF

Powerhouse

• Number of units................................... 4
• Nameplate capacity (3 @ 112 MW, 1 @ 115 MW)..... 451 MW
• Overload capacity (4 @ 115 MW)................................ 460 MW
• Hydraulic capacity............................. 15,600 cfs