Lake Le-Ann South Dam, located in Liberty, Michigan, is a privately owned earth dam constructed in 1960 for recreational purposes.
Wind
Humidity
Standing at a height of 23 feet with a hydraulic height of 21.9 feet, this dam serves as a vital structure along the Grand River. With a storage capacity of 1000 acre-feet and a surface area of 275 acres, Lake Le-Ann South Dam provides opportunities for boating, fishing, and other water-based activities in the area.
Maintained and regulated by the Michigan Department of Environment, Great Lakes, and Energy, the dam has a low hazard potential and is in satisfactory condition as of the last inspection in October 2019. Despite its low risk level, the dam has a very high risk assessment due to its critical role in managing water resources in the region. The controlled spillway with a width of 3 feet ensures safe water release during periods of high discharge, further enhancing the safety and functionality of the dam.
Overall, Lake Le-Ann South Dam stands as a key infrastructure for water resource management and recreation in Hillsdale County, Michigan. Its importance in providing water storage, flood control, and recreational opportunities makes it a significant asset for both the local community and visitors alike. As climate change and water scarcity continue to pose challenges, the proper maintenance and regulation of dams like Lake Le-Ann South Dam are crucial for ensuring sustainable water management practices in the region.
Year Completed |
1960 |
Dam Length |
155 |
Dam Height |
23 |
River Or Stream |
Grand River |
Primary Dam Type |
Earth |
Surface Area |
275 |
Hydraulic Height |
21.9 |
Drainage Area |
1.6 |
Nid Storage |
1000 |
Structural Height |
23 |
Hazard Potential |
Low |
Nid Height |
23 |
Grand River At Jackson
|
63cfs |
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|
17cfs |
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|
7cfs |
River Raisin Near Adrian
|
119cfs |
Kalamazoo River Near Marengo
|
278cfs |
Bean Creek At Powers Oh
|
23cfs |