Seven-up Detention Dam
Seven-up Detention Dam is a gravity dam located in Phillips County, Montana, built in 1967. It carries a Low hazard potential classification and has a fair condition assessment.
About Seven-up Detention Dam
The primary purpose of Seven-up Detention Dam 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 Doi Blm (federal). It impounds the Seven Mile Ck./missouri River near Fort Peck.
The dam stands 24 feet tall and stretches 1,170 feet across, creates a reservoir covering 27 acres, has a maximum storage capacity of 162 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1967, 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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 10/24/2017.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Montana |
| County | Phillips |
| Nearest City | Fort Peck |
| River/Stream | Seven Mile Ck./missouri River |
| Coordinates | 47.75133, -108.47649 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 24 ft |
| Dam Length | 1,170 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 162 acre-ft |
| Max Storage | 162 acre-ft |
| Normal Storage | 25 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 10/24/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MT00724 |
| Federal ID | MT00724 |
| More Info | State Dam Safety Program |