Robertson (Chouteau) is a privately owned earth dam located in Fort Benton, Montana, along the Huntly Coulee.
Wind
Humidity
Constructed in 1960 by the USDA NRCS, this multipurpose dam serves as a vital resource for fire protection, stock watering, and small fish pond purposes. With a height of 20 feet and a storage capacity of 113 acre-feet, the dam plays a crucial role in managing water resources in the region.
Managed by the DNRC and regulated by the state of Montana, Robertson (Chouteau) has a low hazard potential and a moderate risk assessment rating of 3. The dam's uncontrolled spillway, with a width of 35 feet, is designed to handle a maximum discharge of 300 cubic feet per second. Although the condition assessment is currently listed as "Not Rated," the dam is subject to state inspection, enforcement, and permitting to ensure its continued safe operation and maintenance.
Owned by a private entity, Robertson (Chouteau) is integral to the water infrastructure of Chouteau County. With its strategic location and purposeful design, this dam embodies the intersection of water resource management, climate resilience, and agricultural sustainability in the state of Montana.
Year Completed |
1960 |
Dam Length |
295 |
Dam Height |
20 |
River Or Stream |
HUNTLY COULEE |
Primary Dam Type |
Earth |
Hydraulic Height |
20 |
Drainage Area |
6.25 |
Nid Storage |
113 |
Hazard Potential |
Low |
Nid Height |
20 |
Missouri River Near Great Falls Mt
|
3530cfs |
Lake Creek Near Power Mt
|
30cfs |
Missouri River At Fort Benton Mt
|
4720cfs |
Muddy Creek At Vaughn Mt
|
86cfs |
Sun River Near Vaughn Mt
|
2680cfs |
Teton River Near Dutton Mt
|
83cfs |