Detroit Dam was completed in 1953 by the U.S. Army Corp of Engineers on the North Santiam River between Linn County and Marion County, Oregon, in the Cascades. The dam created 400-foot (120 m) deep Detroit Lake, more than 9 miles (14 km) long with 32 miles (51 km) of shoreline.
The dam, dedicated on June 10, 1953, was authorized for the purposes of flood control, power generation, navigation, and irrigation. Other uses are fishery, water quality, and recreation.
Fishing is allowed from the dam.
- Drainage area: 437 mi² (1,132 km²)
- Maximum inflow: 63,200 ft³/s (1,790 m³/s) 1909
- Lake Elevation
- Maximum pool: 1,574 ft (480 m)
- Full pool: 1,569 ft (478 m)
- Minimum flood control pool: 1,450 ft (442 m)
- Usable storage (1,425.0 to 1,563.5 ft) = 321,000 acre feet (396,000,000 m3)
- Number of units: 2
- Nameplate capacity: 100 MW
- Overload capacity: 115 MW
- Hydraulic capacity: 5,340 ft³/s (151 m³/s)
- Corps of Engineers plot of lake level for most recent 12 months