North Roy
North Roy is an earth dam located in Fergus County, Montana, built in 1964. It carries a Low hazard potential classification.
About North Roy
The primary purpose of North Roy 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 S Holland (private). It impounds the Tr-crooked Creek near No Town.
The dam stands 27 feet tall and stretches 465 feet across, and has a maximum storage capacity of 415 acre-feet. Completed in 1964, 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 | Fergus |
| Nearest City | No Town |
| River/Stream | Tr-crooked Creek |
| Coordinates | 47.47900, -108.53750 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 465 ft |
| Year Completed | 1964 (62 years old) |
Storage & Hydraulics
| NID Storage | 415 acre-ft |
| Max Storage | 415 acre-ft |
| Normal Storage | 390 acre-ft |
| Max Discharge | 390 cfs |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | S HOLLAND |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00170 |
| Federal ID | MT00170 |
| More Info | State Dam Safety Program |