Gillespie
Gillespie is an earth dam located in Albany County, Wyoming, built in 1914. It carries a Low hazard potential classification and has a poor condition assessment.
About Gillespie
The primary purpose of Gillespie is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by River To Prairie Ranch Llc, Attn: Allen Cook (private). It impounds the Trib Of Lake Ione near Torrington.
The dam stands 8 feet tall and stretches 100 feet across, creates a reservoir covering 64 acres, and has a maximum storage capacity of 384 acre-feet. Completed in 1914, the structure is over a century 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 07/28/2021.
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Location
| State | Wyoming |
| County | Albany |
| Nearest City | Torrington |
| River/Stream | Trib Of Lake Ione |
| Coordinates | 41.71810, -105.65500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 8 ft |
| Dam Height | 8 ft |
| Dam Length | 100 ft |
| Year Completed | 1914 (112 years old) |
Storage & Hydraulics
| NID Storage | 384 acre-ft |
| Max Storage | 384 acre-ft |
| Normal Storage | 256 acre-ft |
| Surface Area | 64 acres |
| Max Discharge | 344 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | RIVER TO PRAIRIE RANCH LLC, ATTN: ALLEN COOK |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 07/28/2021 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00018 |
| Federal ID | WY00018 |
| More Info | State Dam Safety Program |