Little Pierce
Little Pierce is an earth dam located in Albany County, Wyoming, built in 1941. It carries a Low hazard potential classification and has a poor condition assessment.
About Little Pierce
Little Pierce is a dam in Albany, Wyoming. The dam is owned by Rock River Ranches, Inc. (private). It impounds the Dry Creek near Como Bluffs Fish Hatcher.
The dam stands 24 feet tall and stretches 420 feet across, creates a reservoir covering 9 acres, and has a maximum storage capacity of 62 acre-feet. Completed in 1941, 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. Its condition is rated poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 08/22/2023.
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Location
| State | Wyoming |
| County | Albany |
| Nearest City | Como Bluffs Fish Hatcher |
| River/Stream | Dry Creek |
| Coordinates | 41.69167, -106.07083 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 24 ft |
| Dam Height | 24 ft |
| Dam Length | 420 ft |
| Year Completed | 1941 (85 years old) |
Storage & Hydraulics
| NID Storage | 62 acre-ft |
| Max Storage | 62 acre-ft |
| Normal Storage | 49 acre-ft |
| Surface Area | 9 acres |
| Max Discharge | 937 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Other |
| Owner | ROCK RIVER RANCHES, INC. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 08/22/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00332 |
| Federal ID | WY00332 |
| More Info | State Dam Safety Program |