Sterner Dam, also known as Thomas Dam, is a private hydroelectric structure situated in Ionia, Michigan, along Prairie Creek.
Wind
Humidity
Built in 1921, this gravity dam stands at a height of 13 feet and has a length of 52 feet, providing a maximum storage capacity of 85 acre-feet. It serves as a controlled spillway with a width of 68 feet, ensuring a low hazard potential and a very high risk assessment rating. Despite its age, Sterner Dam has not been rated for its current condition and has not undergone inspection since 1981.
Although not regulated or permitted by the state, Sterner Dam continues to operate for its primary purpose of hydroelectric power generation. It is located within the Chicago District of the US Army Corps of Engineers, with no associated federal agencies providing funding, design, construction, or regulatory oversight. The dam's surrounding area covers a surface area of 4 acres and offers a unique opportunity for water resource and climate enthusiasts to explore a historic piece of infrastructure that contributes to the local energy grid. With its intriguing history and potential for further risk management measures, Sterner Dam presents an interesting case study for those interested in the intersection of water resources and climate resilience.
Year Completed |
1921 |
Dam Length |
52 |
Dam Height |
13 |
River Or Stream |
Prairie Creek |
Primary Dam Type |
Gravity |
Surface Area |
4 |
Hydraulic Height |
13 |
Nid Storage |
85 |
Structural Height |
13 |
Hazard Potential |
Low |
Nid Height |
13 |
Grand River At Ionia
|
597cfs |
Grand River At Portland
|
474cfs |
Fish Creek Near Crystal
|
14cfs |
Maple River At Maple Rapids
|
42cfs |
Looking Glass River Near Eagle
|
40cfs |
Rogue River Near Rockford
|
126cfs |
| Location | Reservations | Toilets |
|---|---|---|
Bertha Brock County Park
|
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Ionia Equestrian-Rustic
|
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Ionia State Rec Area
|
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Maple River Campground
|