Chico Flats is an earth dam located in Valley County, Montana, built in 1956. It carries a Low hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 1,126 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Chico Flats
The primary purpose of Chico Flats is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Whitmayer Grazing Association (private). It impounds the Bennett Coulee near Nashua.
The dam stands 23 feet tall and stretches 1,126 feet across, and has a maximum storage capacity of 196 acre-feet. Completed in 1956, the structure is well into its service life at over 50 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | Montana |
| County | Valley |
| Nearest City | Nashua |
| River/Stream | Bennett Coulee |
| Coordinates | 47.86540, -106.89530 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 1,126 ft |
| Year Completed | 1956 (70 years old) |
Storage & Hydraulics
| NID Storage | 196 acre-ft |
| Max Storage | 196 acre-ft |
| Normal Storage | 92 acre-ft |
| Max Discharge | 400 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Whitmayer Grazing Association |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00674 |
| Federal ID | MT00674 |
| More Info | State Dam Safety Program |