Renwick Dam, also known as Tongue River WS Dam M-4, is a key flood risk reduction structure in Cavalier, North Dakota.
Wind
Humidity
Owned by the local government, this earth dam was designed by the USDA NRCS and completed in 1962. With a height of 49.4 feet, a length of 1400 feet, and a storage capacity of 11,658 acre-feet, Renwick Dam plays a crucial role in protecting the surrounding area from potential flooding events.
Located on the Tongue River, Renwick Dam is regulated by the NDSWC and undergoes regular inspections to ensure its structural integrity. The dam features an uncontrolled spillway with a width of 400 feet and a slide (sluice gate) outlet gate. Despite being classified as having a high hazard potential, the dam's condition assessment as of April 2021 was deemed satisfactory. With a moderate risk level of 3, the dam's risk management measures are under continuous evaluation to mitigate any potential threats.
Renwick Dam stands as a vital infrastructure for flood risk reduction in Pembina County, North Dakota. With its strategic location and efficient design, this earth dam serves as a key component in safeguarding the community against the impacts of extreme weather events and ensuring the sustainable management of water resources in the region.
Year Completed |
1962 |
Dam Length |
1400 |
Dam Height |
49.4 |
River Or Stream |
TONGUE RIVER |
Primary Dam Type |
Earth |
Surface Area |
223 |
Drainage Area |
144 |
Nid Storage |
11658 |
Structural Height |
49.4 |
Outlet Gates |
Slide (sluice gate) - 1 |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
49 |
Tongue River At Akra
|
53cfs |
Pembina River At Walhalla
|
138cfs |
Little South Pembina River Nr Walhalla
|
5cfs |
Pembina River At Neche
|
188cfs |
Park River At Grafton
|
26cfs |
Red River Of The North At Drayton
|
1650cfs |
| Location | Reservations | Toilets |
|---|---|---|
Icelandic State Park
|
||
Legion - Mountain
|
||
Walhalla Riverside City Park
|