Flowage Lake Dam, situated in West Branch, Michigan, stands as a vital structure on the Rifle River, serving primarily for recreational purposes.
Wind
Humidity
Completed in 1997, this earth dam boasts a height of 27 feet and a hydraulic height of 25.5 feet, with a storage capacity of 380 acre-feet and a surface area of 35 acres. The dam's spillway, of uncontrolled type, spans 74 feet and contributes to its significant hazard potential.
Maintained by a private owner, Flowage Lake Dam falls under the regulatory oversight of the Michigan Department of Environment, Great Lakes, and Energy (DEGLE). Its condition, assessed as satisfactory during the last inspection in August 2020, poses a moderate risk level. While meeting state inspection and permitting requirements, the dam's emergency action plan status and risk management measures remain unspecified. With its picturesque location and crucial role in supporting local water resources, Flowage Lake Dam continues to be a focal point for water resource and climate enthusiasts in Ogemaw County, Michigan.
Year Completed |
1997 |
Dam Length |
250 |
Dam Height |
27 |
River Or Stream |
Rifle River |
Primary Dam Type |
Earth |
Surface Area |
35 |
Hydraulic Height |
25.5 |
Drainage Area |
42 |
Nid Storage |
380 |
Structural Height |
27 |
Hazard Potential |
Significant |
Nid Height |
27 |
Rifle River Near Sterling
|
210cfs |
South Branch Au Sable River Near Luzerne
|
130cfs |
Au Sable River At Mio
|
665cfs |
Au Sable River Near Curtisville
|
838cfs |
Au Sable River Near Red Oak
|
609cfs |
Tobacco River At Glidden Road At Beaverton
|
193cfs |
| Location | Reservations | Toilets |
|---|---|---|
Cole Family Camp
|
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White Pines Area
|
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Bridge View
|
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Rifle River
|
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Deadwood Oaks
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Deer Run
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