Kiewit Herbs Creek No. 1
Kiewit Herbs Creek No. 1 is an earth dam located in Sheridan County, Wyoming, built in 1967. It carries a Low hazard potential classification and has a fair condition assessment.
About Kiewit Herbs Creek No. 1
The primary purpose of Kiewit Herbs Creek 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 X-x Ranch, Llc, Att: David Hannahs (private). It impounds the Herb Creek, Trib. Of Gay Creek near Wyola, Mt.
The dam stands 44 feet tall and stretches 425 feet across, creates a reservoir covering 5 acres, has a maximum storage capacity of 98 acre-feet, and collects water from a drainage area of 3 square miles. Completed in 1967, 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 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 05/23/2024.
At 44 feet, this dam is taller than 90% of dams nationwide.
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Location
| State | Wyoming |
| County | Sheridan |
| Nearest City | Wyola, Mt |
| River/Stream | Herb Creek, Trib. Of Gay Creek |
| Coordinates | 44.97722, -107.52611 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 44 ft |
| Dam Height | 44 ft |
| Dam Length | 425 ft |
| Year Completed | 1967 (59 years old) |
Storage & Hydraulics
| NID Storage | 98 acre-ft |
| Max Storage | 98 acre-ft |
| Normal Storage | 68 acre-ft |
| Surface Area | 5 acres |
| Drainage Area | 3 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | X-X RANCH, LLC, ATT: DAVID HANNAHS |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 05/23/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00697 |
| Federal ID | WY00697 |
| More Info | State Dam Safety Program |