East Grand Forks
East Grand Forks is a rockfill dam located in Polk County, Minnesota, built in 1937. It carries a Low hazard potential classification and has a satisfactory condition assessment.
About East Grand Forks
The primary purpose of East Grand Forks is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by City Of East Grand Forks (local government). It impounds the Red Lake River near East Grand Forks.
The dam stands 9 feet tall and stretches 100 feet across, has a maximum storage capacity of 80 acre-feet, and collects water from a drainage area of 5,694 square miles. Completed in 1937, the structure is well-established, with more than 75 years of service.
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 satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/18/2017.
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Location
| State | Minnesota |
| County | Polk |
| Nearest City | East Grand Forks |
| River/Stream | Red Lake River |
| Coordinates | 47.92294, -97.01856 |
Physical Characteristics
| Dam Type | Rockfill |
| NID Height | 9 ft |
| Dam Height | 7 ft |
| Dam Length | 100 ft |
| Year Completed | 1937 (89 years old) |
Storage & Hydraulics
| NID Storage | 80 acre-ft |
| Max Storage | 80 acre-ft |
| Normal Storage | 60 acre-ft |
| Drainage Area | 5,694 sq mi |
| Max Discharge | 1,700 cfs |
Ownership & Safety
| Purpose | Grade Stabilization |
| Owner | City of East Grand Forks |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Satisfactory |
| Last Inspection | 10/18/2017 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MN00010 |
| Federal ID | MN00010 |
| More Info | State Dam Safety Program |