Doran is an earth dam located in Custer County, Montana, built in 1936. It carries a Low hazard potential classification.
Dam profile
NID height · 25 ft25 ft tall and 840 ft long, taller than 50% of U.S. dams with a recorded height. 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 Doran
The primary purpose of Doran is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by John Doran (private). It impounds the Tr-crow Rock Creek near No Town.
The dam stands 25 feet tall and stretches 840 feet across, and has a maximum storage capacity of 175 acre-feet. Completed in 1936, the structure is well-established, with more than 75 years of service.
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 | Custer |
| Nearest City | No Town |
| River/Stream | Tr-crow Rock Creek |
| Coordinates | 46.84940, -106.03630 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 840 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 175 acre-ft |
| Max Storage | 175 acre-ft |
| Normal Storage | 104 acre-ft |
| Max Discharge | 6,900 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | John Doran |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00108 |
| Federal ID | MT00108 |
| More Info | State Dam Safety Program |