Chyle Dam
Chyle Dam is an earth dam located in Walsh County, North Dakota, built in 1966. It carries a Significant hazard potential classification.
About Chyle Dam
The primary purpose of Chyle 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 Walsh County Wrb (local government). It impounds the North Branch Forest River near N.
The dam stands 52 feet tall and stretches 4,383 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 1,470 acre-feet, and collects water from a drainage area of 5 square miles. Completed in 1966, 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 11/05/2020.
At 52 feet, this dam is taller than 93% of dams nationwide.
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Location
| State | North Dakota |
| County | Walsh |
| Nearest City | N |
| River/Stream | North Branch Forest River |
| Coordinates | 48.25462, -97.94393 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 52 ft |
| Dam Height | 41 ft |
| Dam Length | 4,383 ft |
| Year Completed | 1966 (60 years old) |
Storage & Hydraulics
| NID Storage | 1,470 acre-ft |
| Max Storage | 1,470 acre-ft |
| Normal Storage | 65 acre-ft |
| Surface Area | 11 acres |
| Drainage Area | 5 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 Rated |
| Last Inspection | 11/05/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ND00037 |
| Federal ID | ND00037 |
| More Info | State Dam Safety Program |