Blackford #5
Blackford #5 is an earth dam located in Carter County, Montana, built in 1955. It carries a Low hazard potential classification.
About Blackford #5
The primary purpose of Blackford #5 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by A Blackford (private). It impounds the Tr-box Elder Creek near Marmarth North Dakota.
The dam stands 12 feet tall and stretches 900 feet across, has a maximum storage capacity of 891 acre-feet, and collects water from a drainage area of 18 square miles. Completed in 1955, 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 | Carter |
| Nearest City | Marmarth North Dakota |
| River/Stream | Tr-box Elder Creek |
| Coordinates | 45.40330, -104.53160 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 12 ft |
| Dam Height | 12 ft |
| Dam Length | 900 ft |
| Year Completed | 1955 (71 years old) |
Storage & Hydraulics
| NID Storage | 891 acre-ft |
| Max Storage | 891 acre-ft |
| Normal Storage | 264 acre-ft |
| Drainage Area | 18 sq mi |
| Max Discharge | 1,000 cfs |
Ownership & Safety
| Purpose | Irrigation |
| Owner | A BLACKFORD |
| Owner Type | Private |
| Hazard Classification | Low |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT02764 |
| Federal ID | MT02764 |
| More Info | State Dam Safety Program |