Wildlife Flooding Dam, also known as Old Rr Grade Dam, is a state-owned structure located in Pinckney, Michigan.
Wind
Humidity
Completed in 1890, this earth dam stands at a height of 8 feet and spans a length of 500 feet, with a primary purpose of recreation. Situated on a tributary to Honey Creek, the dam provides a surface area of 18 acres and has a normal storage capacity of 25 acre-feet.
Despite being categorized as low hazard potential, Wildlife Flooding Dam poses a moderate risk due to its condition assessment being "Not Rated." The dam features an uncontrolled spillway type with a width of 1 foot, and it has not undergone any modifications in recent years. The last inspection in 2015 revealed no major concerns, but the structure is subject to a 5-year inspection frequency to ensure its safety and integrity for recreational use.
The dam, managed by the state of Michigan, does not fall under federal jurisdiction and is not regulated by state agencies. While it serves as a recreational site for the local community, the overall risk assessment indicates a moderate level of concern. With its historical significance dating back over a century, efforts to maintain and monitor Wildlife Flooding Dam are essential to ensure the safety of both wildlife and visitors in the area.
Year Completed |
1890 |
Dam Length |
500 |
Dam Height |
8 |
River Or Stream |
Tributary to Honey Creek |
Primary Dam Type |
Earth |
Surface Area |
18 |
Hydraulic Height |
6 |
Drainage Area |
0.1 |
Nid Storage |
60 |
Structural Height |
8 |
Hazard Potential |
Low |
Nid Height |
8 |
Huron River Near Hamburg
|
150cfs |
Mill Creek Near Dexter
|
29cfs |
Huron River Near New Hudson
|
105cfs |
Huron River At Ann Arbor
|
293cfs |
Red Cedar River Near Williamston
|
30cfs |
Huron River At Milford
|
73cfs |
| Location | Reservations | Toilets |
|---|---|---|
Pinckney-Crooked Lake Rustic
|
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Blind Lake Campground
|
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Pines North
|
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Pines South
|
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Pinckney State Rec Area
|
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Munhacke
|