Mcslay, John Estate is a privately owned earth dam located in Hill, Montana, along Nelson Coulee.
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Humidity
Built in 1947 by the USDA NRCS, this dam serves multiple purposes including fire protection, water storage for livestock, and as a small fish pond. With a height of 20 feet and a length of 490 feet, this dam has a storage capacity of 113 acre-feet, with a normal storage level of 58 acre-feet.
Managed by the Montana Department of Natural Resources and Conservation (DNRC), Mcslay, John Estate has a low hazard potential and a moderate risk assessment rating. Despite not having a current condition assessment, the dam is regularly inspected, with state permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations. The spillway width is 40 feet, allowing for a maximum discharge of 180 cubic feet per second in the event of overflow.
Located in a scenic area of Havre, Montana, Mcslay, John Estate is a vital water resource for the local community, providing essential services for both fire protection and irrigation. With a rich history dating back to its construction in the mid-20th century, this dam continues to play a crucial role in water management and conservation efforts in the region.
Year Completed |
1947 |
Dam Length |
490 |
Dam Height |
20 |
River Or Stream |
NELSON COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Drainage Area |
3.44 |
Nid Storage |
113 |
Hazard Potential |
Low |
Nid Height |
20 |