Bourbanis Dam
Bourbanis Dam is an earth dam located in Cavalier County, North Dakota, built in 1957. It carries a Significant hazard potential classification.
About Bourbanis Dam
The primary purpose of Bourbanis Dam 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 Pembina County Wrb (local government). It impounds the Tongue River-tr near Concrete.
The dam stands 76 feet tall and stretches 420 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 1,340 acre-feet, and collects water from a drainage area of 8 square miles. Completed in 1957, 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 09/24/2019.
At 76 feet, this dam is taller than 97% of all dams in the United States.
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Location
| State | North Dakota |
| County | Cavalier |
| Nearest City | Concrete |
| River/Stream | Tongue River-tr |
| Coordinates | 48.78435, -97.98009 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 76 ft |
| Dam Height | 73 ft |
| Dam Length | 420 ft |
| Year Completed | 1957 (69 years old) |
Storage & Hydraulics
| NID Storage | 1,340 acre-ft |
| Max Storage | 1,340 acre-ft |
| Normal Storage | 12 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 8 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Pembina County WRB |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not Rated |
| Last Inspection | 09/24/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ND00083 |
| Federal ID | ND00083 |
| More Info | State Dam Safety Program |