Upton-osage No. F.s. 9-498-33
Upton-osage No. F.s. 9-498-33 is an earth dam located in Weston County, Wyoming, built in 1973. It carries a Low hazard potential classification and has a fair condition assessment.
About Upton-osage No. F.s. 9-498-33
The primary purpose of Upton-osage No. F.s. 9-498-33 is fish and wildlife pond. The dam creates habitat for fish and wildlife, supporting local ecosystems and potentially serving conservation goals. The dam is owned by Usda Forest Service (federal). It impounds the Moulton Draw.
The dam stands 24 feet tall and stretches 327 feet across, creates a reservoir covering 7 acres, has a maximum storage capacity of 75 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1973, 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 04/29/2021.
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Location
| State | Wyoming |
| County | Weston |
| River/Stream | Moulton Draw |
| Coordinates | 44.05270, -104.45760 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 327 ft |
| Year Completed | 1973 (53 years old) |
Storage & Hydraulics
| NID Storage | 75 acre-ft |
| Max Storage | 75 acre-ft |
| Normal Storage | 40 acre-ft |
| Surface Area | 7 acres |
| Drainage Area | 0 sq mi |
| Max Discharge | 505 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fish and Wildlife Pond |
| Owner | USDA FOREST SERVICE |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 04/29/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01940 |
| Federal ID | WY01940 |
| More Info | State Dam Safety Program |