Dead Colt Creek Dam is an earth dam located in Ransom County, North Dakota, built in 1984. It carries a Significant hazard potential classification.
Dam profile
NID height · 92 ft92 ft tall and 1,200 ft long, taller than 98% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Dead Colt Creek Dam
The primary purpose of Dead Colt Creek 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 Ransom County Wrb (local government). It impounds the Dead Colt Creek near Horace.
The dam stands 92 feet tall and stretches 1,200 feet across, creates a reservoir covering 124 acres, has a maximum storage capacity of 8,901 acre-feet, and collects water from a drainage area of 60 square miles. Completed in 1984, the structure is 42 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 06/06/2019.
At 92 feet, this dam is taller than 98% of all dams in the United States.
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Location
| State | North Dakota |
| County | Ransom |
| Nearest City | Horace |
| River/Stream | Dead Colt Creek |
| Coordinates | 46.37124, -97.61355 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 92 ft |
| Dam Height | 80 ft |
| Dam Length | 1,200 ft |
| Year Completed | 1984 (42 years old) |
Storage & Hydraulics
| NID Storage | 8,901 acre-ft |
| Max Storage | 8,901 acre-ft |
| Normal Storage | 2,208 acre-ft |
| Surface Area | 124 acres |
| Drainage Area | 60 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | Ransom County Wrb |
| Owner Type | Local Government |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 06/06/2019 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | ND00412 |
| Federal ID | ND00412 |
| More Info | State Dam Safety Program |