North Roy is an earth dam located in Fergus County, Montana, built in 1964. It carries a Low hazard potential classification.
Dam profile
NID height · 27 ft27 ft tall and 465 ft long, taller than 59% 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 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.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
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 |
| Condition Assessment | Not assessed |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00170 |
| Federal ID | MT00170 |
| More Info | State Dam Safety Program |