Sperry Dam
Sperry Dam is an earth dam located in Sheridan County, North Dakota, built in 1936. It carries a Low hazard potential classification.
About Sperry Dam
The primary purpose of Sperry Dam is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Sheridan County Wrb (local government). It impounds the Missouri River-os near N.
The dam stands 25 feet tall and stretches 340 feet across, creates a reservoir covering 27 acres, has a maximum storage capacity of 162 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1936, 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. The most recent inspection on record was 12/01/1954. That was over 71 years ago.
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Location
| State | North Dakota |
| County | Sheridan |
| Nearest City | N |
| River/Stream | Missouri River-os |
| Coordinates | 47.39458, -100.27562 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Height | 25 ft |
| Dam Length | 340 ft |
| Year Completed | 1936 (90 years old) |
Storage & Hydraulics
| NID Storage | 162 acre-ft |
| Max Storage | 162 acre-ft |
| Normal Storage | 162 acre-ft |
| Surface Area | 27 acres |
| Drainage Area | 2 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | Sheridan County WRB |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Last Inspection | 12/01/1954 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | ND00068 |
| Federal ID | ND00068 |
| More Info | State Dam Safety Program |