Winchester Dam, also known as Martiny Lakes Wildlife Flooding, is a state-owned structure located in Barryton, Michigan.
Wind
Humidity
Completed in 1954, this earth dam serves primarily for recreational purposes and stands at a height of 12.6 feet with a hydraulic height of 11.3 feet. It spans 362 feet in length and has a storage capacity of 7,500 acre-feet, providing a surface area of 1,420 acres for outdoor enthusiasts to enjoy.
Situated on the West Branch of the Chippewa River, Winchester Dam plays a crucial role in regulating water flow and providing opportunities for recreational activities in the surrounding area. With a significant hazard potential but a satisfactory condition assessment as of the last inspection in August 2020, the dam is closely monitored and regulated by the Michigan Department of Environment, Great Lakes, and Energy. Despite its age, Winchester Dam continues to serve as a vital asset for both water resource management and community enjoyment.
With a moderate risk rating and regular inspection frequency, Winchester Dam remains a focal point for water resource and climate enthusiasts in Mecosta County, Michigan. Its uncontrolled spillway, with a width of 33 feet, ensures effective water release during peak flows. As a key piece of infrastructure in the region, the dam plays a crucial role in balancing water levels, supporting wildlife habitats, and providing recreational opportunities for locals and visitors alike.
Year Completed |
1954 |
Dam Length |
362 |
Dam Height |
12.6 |
River Or Stream |
W Br Chippewa River |
Primary Dam Type |
Earth |
Surface Area |
1420 |
Hydraulic Height |
11.3 |
Drainage Area |
40.4 |
Nid Storage |
7500 |
Structural Height |
12.6 |
Hazard Potential |
Significant |
Nid Height |
13 |
| Location | Reservations | Toilets |
|---|---|---|
Tubbs Lake State Forest Campground
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Merrill Lake Park
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School Section Lake Park
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Haymarsh State Game Area
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Cran-Hill Ranch
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Crittenden County Park
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