Sanders Lake Dam #1, located in Missoula, Montana, was completed in 1913 and serves as a vital water supply resource for the local community.
Wind
Humidity
This earth-type dam stands at a height of 10 feet with a hydraulic height of 4 feet, creating a reservoir with a maximum storage capacity of 897 acre-feet. The dam spans 270 feet in length and covers a surface area of 43 acres, drawing water from the TR-WRANGLE CREEK.
Despite its age, Sanders Lake Dam #1 is state-regulated, inspected, and permitted by the Montana Department of Natural Resources and Conservation (DNRC). The dam is classified as having a significant hazard potential, with a moderate risk level assessed. The spillway is uncontrolled, with a width of 10 feet, and the outlet gates are also uncontrolled.
While the condition of Sanders Lake Dam #1 is currently not rated, its importance in providing water supply to the region cannot be understated. As climate change continues to impact water resources, the maintenance and monitoring of dams like Sanders Lake Dam #1 will be crucial in ensuring the resilience of our water infrastructure in the face of changing environmental conditions.
Year Completed |
1913 |
Dam Length |
270 |
Dam Height |
10 |
River Or Stream |
TR-WRANGLE CREEK |
Primary Dam Type |
Earth |
Surface Area |
43 |
Hydraulic Height |
4 |
Drainage Area |
0.55 |
Nid Storage |
897 |
Structural Height |
10 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
Significant |
Nid Height |
10 |
South Fork Jocko River Near Arlee Mt
|
83cfs |
Clark Fork Above Missoula Mt
|
1140cfs |
Blackfoot River Near Bonner Mt
|
382cfs |
Clark Fork Below Missoula Mt
|
2310cfs |
Bitterroot River Near Missoula Mt
|
1010cfs |
Clark Fork At Turah Bridge Nr Bonner Mt
|
718cfs |
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