Park Lake Dam, located in Montana City, MT, is a Federal-owned structure designed by HYDROMETRICS for the primary purpose of serving as a Fish and Wildlife Pond.
Wind
Humidity
Completed in 1872, this Earth-type dam stands at a height of 31 feet and has a hydraulic height of 25 feet. With a storage capacity of 729 acre-feet, the dam controls the flow of the Prickly Pear Creek, a tributary of the Missouri River.
The dam, managed by the USDA Forest Service, has a spillway width of 100 feet and a maximum discharge capacity of 4,500 cubic feet per second. Despite its high hazard potential, the dam's condition is currently not rated, with the last structural modification conducted in 2009. With a moderate risk assessment score of 3, Park Lake Dam plays a crucial role in both fish and wildlife conservation as well as recreational activities in the area. It serves as a vital water resource and climate management structure in Jefferson County, Montana.
Years Modified |
2009 - Structural |
Year Completed |
1872 |
Dam Length |
394 |
Dam Height |
31 |
River Or Stream |
PRICKLY PEAR CR, TRIBUTARY OF |
Primary Dam Type |
Earth |
Surface Area |
38 |
Hydraulic Height |
25 |
Drainage Area |
0.48 |
Nid Storage |
729 |
Structural Height |
31 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Rock, Soil |
Nid Height |
31 |
| Location | Reservations | Toilets |
|---|---|---|
Park Lake campground
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Park Lake
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Moose Creek Cabin
|
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Cromwell Dixon campground
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Cromwell Dixon
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Basin Canyon
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