Detroit Dam
Detroit Dam is a gravity dam on the North Santiam River between Linn County and Marion County, Oregon. It is located in the Cascades, about west of the city of Detroit. It was constructed between 1949 and 1953 by the United States Army Corps of Engineers. The dam created deep Detroit Lake, more than 9 miles (14 km) long with 32 miles (51 km) of shoreline.

It is one of the dams authorized by the Flood Control Act of 1938. Construction was delayed largely due to World War II. 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. It was built in concert with the Big Cliff Dam downstream.

In 2021, the U.S. Army Corps of Engineers determined that this dam was at risk of failing in a large earthquake in the Cascadia subduction zone, which would result in a "potentially catastrophic flood", which could potentially affect Oregon's state capital, Salem, located downstream. For this reason, the level of the reservoir was lowered by five feet, to reduce the stress on the concrete structure.
 
Q3497167
gravity dam
Concept
Q2000773
North Santiam River
LOC
Q506015
Linn County
LOC
Q484408
Marion County
LOC
Q824
Oregon
LOC
Q4558
Cascades
LOC
Q2187605
Detroit
LOC
Q1049334
United States Army Corps of Engineers
PER
Q1201542
Detroit Lake
LOC
Q468756
shoreline
Concept
Q5460035
Flood Control Act of 1938
PER
Q15199195
Big Cliff Dam
LOC
Q4024718
Cascadia subduction zone
Concept
Q43919
Salem
LOC
Q5265896
Detroit Dam
LOC
1949-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1949
DATE
1953-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1953
DATE
1938-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
1938
DATE
1953-06-10T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
June 10, 1953
DATE
2021-01-01T00:00:00Z^^http://www.w3.org/2001/XMLSchema#dateTime
2021
DATE
+9^^http://www.w3.org/2001/XMLSchema#decimal
9
NUMBER
+14^^http://www.w3.org/2001/XMLSchema#decimal
14
NUMBER
+32^^http://www.w3.org/2001/XMLSchema#decimal
32
NUMBER
+51^^http://www.w3.org/2001/XMLSchema#decimal
51
NUMBER
instance of
located on terrain feature
located in the administrative territorial entity
located in the administrative territorial entity
reservoir created
located in the administrative territorial entity
located in the administrative territorial entity