Oshoto
Oshoto is an earth dam located in Crook County, Wyoming, built in 1954. It carries a Low hazard potential classification and has a fair condition assessment.
About Oshoto
The primary purpose of Oshoto is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Strata Energy Inc (private). It impounds the Little Missouri River near Camp Crook, Sd.
The dam stands 23 feet tall and stretches 450 feet across, creates a reservoir covering 28 acres, and has a maximum storage capacity of 339 acre-feet. Completed in 1954, the structure is well into its service life at over 50 years old.
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 fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 07/31/2025.
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Location
| State | Wyoming |
| County | Crook |
| Nearest City | Camp Crook, Sd |
| River/Stream | Little Missouri River |
| Coordinates | 44.58100, -104.95000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Height | 23 ft |
| Dam Length | 450 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 339 acre-ft |
| Max Storage | 339 acre-ft |
| Normal Storage | 173 acre-ft |
| Surface Area | 28 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | STRATA ENERGY INC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 07/31/2025 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00980 |
| Federal ID | WY00980 |
| More Info | State Dam Safety Program |