Brown No. 1
Brown No. 1 is an earth dam located in Big Horn County, Wyoming, built in 1913. It carries a Low hazard potential classification and has a poor condition assessment.
About Brown No. 1
The primary purpose of Brown No. 1 is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Gifford Ranch, Llc. (private). It impounds the Crystal Creek near Bighorn.
The dam stands 30 feet tall and stretches 390 feet across, creates a reservoir covering 15 acres, and has a maximum storage capacity of 248 acre-feet. Completed in 1913, 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 08/31/2022.
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Location
| State | Wyoming |
| County | Big Horn |
| Nearest City | Bighorn |
| River/Stream | Crystal Creek |
| Coordinates | 44.69750, -108.03000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 390 ft |
| Year Completed | 1913 (113 years old) |
Storage & Hydraulics
| NID Storage | 248 acre-ft |
| Max Storage | 248 acre-ft |
| Normal Storage | 186 acre-ft |
| Surface Area | 15 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | GIFFORD RANCH, LLC. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 08/31/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01138 |
| Federal ID | WY01138 |
| More Info | State Dam Safety Program |