Mckinley Lake, located in Missoula, Montana, is a picturesque earth dam structure completed in 1923 for water supply purposes.
Wind
Humidity
With a height of 7 feet and a length of 364 feet, the dam boasts a storage capacity of 168 acre-feet and serves as a vital water resource for the local community. The lake covers a surface area of 15 acres and is fed by the TR-LAKE CREEK, with a drainage area of 0.29 square miles.
Despite its age, Mckinley Lake remains a well-regulated and inspected dam, with the Montana Department of Natural Resources and Conservation overseeing its permitting, inspection, and enforcement. The dam's spillway, with a width of 10 feet, is uncontrolled, and the outlet gates are also uncontrolled. The hazard potential of the dam is considered significant, with a moderate risk assessment rating of 3. While the condition assessment is currently not rated, the dam's risk management measures and emergency action plan are in place to ensure the safety of the surrounding area in the event of an emergency.
In the beautiful setting of Missoula, Mckinley Lake stands as both a functional water supply source and a potential hazard to be managed carefully. With its historical significance and important role in the community's water management, the dam serves as a reminder of the importance of maintaining and regulating water resources in the face of changing climate conditions.
Year Completed |
1923 |
Dam Length |
364 |
Dam Height |
7 |
River Or Stream |
TR-LAKE CREEK |
Primary Dam Type |
Earth |
Surface Area |
15 |
Hydraulic Height |
3 |
Drainage Area |
0.29 |
Nid Storage |
168 |
Structural Height |
7 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Significant |
Nid Height |
7 |
Clark Fork Above Missoula Mt
|
1140cfs |
Blackfoot River Near Bonner Mt
|
382cfs |
South Fork Jocko River Near Arlee Mt
|
83cfs |
Clark Fork Below Missoula Mt
|
2310cfs |
Clark Fork At Turah Bridge Nr Bonner Mt
|
718cfs |
Bitterroot River Near Missoula Mt
|
1010cfs |
Wrangle Creek Headwaters, Sec. 18, T15N, R18W To Mainstem, Sec. 21, T15N, R18W
Lake Creek Headwaters, Sec. 30, T15N, R18W To Mainstem, Sec. 21, T15N, R18W
High Falls Creek Headwaters, Sec. 5, T14N, R18W To Mainstem, Sec. 2, T14N, R18W
East Fork Headwaters, Sec. 8, T14N, R17W To Mainstem, Sec. 14, T14N, R18W
Spring Gulch Headwaters, Sec. 12, T14N, R19W To Mainstem, Sec. 35, T14N, R19W
Mainstem Headwaters, Sec. 4, T15N, R18W To Boundary, Sec. 2, T13N, R18W