Hirsig No. 1
Hirsig No. 1 is an earth dam located in Laramie County, Wyoming, built in 1954. It carries a Low hazard potential classification and has a poor condition assessment.
About Hirsig No. 1
The primary purpose of Hirsig 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 True Ranches Llc (private). It impounds the North Bear Creek near Hawk Springs.
The dam stands 28 feet tall and stretches 245 feet across, creates a reservoir covering 6 acres, and has a maximum storage capacity of 80 acre-feet. Completed in 1954, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 05/30/2024.
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Location
| State | Wyoming |
| County | Laramie |
| Nearest City | Hawk Springs |
| River/Stream | North Bear Creek |
| Coordinates | 41.57400, -105.04500 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 28 ft |
| Dam Height | 28 ft |
| Dam Length | 245 ft |
| Year Completed | 1954 (72 years old) |
Storage & Hydraulics
| NID Storage | 80 acre-ft |
| Max Storage | 80 acre-ft |
| Normal Storage | 47 acre-ft |
| Surface Area | 6 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | TRUE RANCHES LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 05/30/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00053 |
| Federal ID | WY00053 |
| More Info | State Dam Safety Program |