Middle Branch Park River 10 is an earth dam located in Cavalier County, North Dakota, built in 1971. It carries a Significant hazard potential classification.
Dam profile
NID height · 45 ft45 ft tall and 3,100 ft long, taller than 90% 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 Middle Branch Park River 10
The primary purpose of Middle Branch Park River 10 is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Walsh County Wrb (local government). It impounds the Middle Branch Park River-tr near Grafton.
The dam stands 45 feet tall and stretches 3,100 feet across, creates a reservoir covering 17 acres, has a maximum storage capacity of 2,111 acre-feet, and collects water from a drainage area of 7 square miles. Completed in 1971, the structure is well into its service life at over 50 years old.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 05/08/2018.
At 45 feet, this dam is taller than 90% of dams nationwide.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | North Dakota |
| County | Cavalier |
| Nearest City | Grafton |
| River/Stream | Middle Branch Park River-tr |
| Coordinates | 48.56302, -97.92988 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Height | 40 ft |
| Dam Length | 3,100 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 2,111 acre-ft |
| Max Storage | 2,111 acre-ft |
| Normal Storage | 60 acre-ft |
| Surface Area | 17 acres |
| Drainage Area | 7 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Walsh County Wrb |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 05/08/2018 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ND00081 |
| Federal ID | ND00081 |
| More Info | State Dam Safety Program |