Agnes Lake, located in Beaverhead, Montana, is a privately owned dam on Agnes Creek that serves primarily for irrigation purposes.
Wind
Humidity
Completed in 1928, this earth dam stands at a height of 13 feet with a hydraulic height of 9 feet and a length of 174 feet. With a storage capacity of 1900 acre-feet, it is a crucial water resource in the region, holding a normal storage level of 790 acre-feet.
Despite its age, Agnes Lake Dam is in a condition that has not been officially rated, posing a high hazard potential due to its uncontrolled spillway and outlet gates. The risk assessment for this structure is considered moderate, with an inspection frequency of once a year. While the emergency action plan status and risk management measures are unclear, the dam remains under state regulation and jurisdiction, ensuring that it meets necessary safety standards.
Water resource and climate enthusiasts interested in the history and current status of Agnes Lake Dam will find it intriguing to explore the complexities of this irrigation infrastructure in Montana. As a key component of water management in the area, the dam's design and operation, along with its high hazard potential and moderate risk assessment, highlight the importance of ongoing monitoring and evaluation to ensure the safety and reliability of this vital water resource for the community.
Year Completed |
1928 |
Dam Length |
174 |
Dam Height |
13 |
River Or Stream |
AGNES CREEK |
Primary Dam Type |
Earth |
Surface Area |
99 |
Hydraulic Height |
9 |
Drainage Area |
3 |
Nid Storage |
1900 |
Structural Height |
13 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Soil |
Nid Height |
13 |
| Location | Reservations | Toilets |
|---|---|---|
Dinner Station Campground and Picnic Area
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Birch Creek Cabin
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Brownes Bridge FAS
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Glen FAS
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Salmon Fly FAS
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Canyon Creek Cabin
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