Darrah No. 3
Darrah No. 3 is an earth dam located in Park County, Wyoming, built in 1908. It carries a Low hazard potential classification and has a fair condition assessment.
About Darrah No. 3
The primary purpose of Darrah No. 3 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Shirley B. Bales Trust (private). It impounds the Bridge Creek near Cody.
The dam stands 20 feet tall and stretches 165 feet across, creates a reservoir covering 7 acres, and has a maximum storage capacity of 122 acre-feet. Completed in 1908, 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 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 09/11/2023.
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Location
| State | Wyoming |
| County | Park |
| Nearest City | Cody |
| River/Stream | Bridge Creek |
| Coordinates | 44.35083, -109.17861 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 20 ft |
| Dam Height | 20 ft |
| Dam Length | 165 ft |
| Year Completed | 1908 (118 years old) |
Storage & Hydraulics
| NID Storage | 122 acre-ft |
| Max Storage | 122 acre-ft |
| Normal Storage | 47 acre-ft |
| Surface Area | 7 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | SHIRLEY B. BALES TRUST |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 09/11/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01189 |
| Federal ID | WY01189 |
| More Info | State Dam Safety Program |