Wiley is an earth dam located in Park County, Wyoming, built in 1971. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 31 ft31 ft tall and 1,006 ft long, taller than 72% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Wiley
The primary purpose of Wiley is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Psalm Cody Ranch, LLC (private). It impounds the Sage Creek near Byron.
The dam stands 31 feet tall and stretches 1,006 feet across, creates a reservoir covering 331 acres, and has a maximum storage capacity of 1,365 acre-feet. Completed in 1971, 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 03/15/2022.
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Location
| State | Wyoming |
| County | Park |
| Nearest City | Byron |
| River/Stream | Sage Creek |
| Coordinates | 44.40333, -108.99278 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 31 ft |
| Dam Height | 31 ft |
| Dam Length | 1,006 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 1,365 acre-ft |
| Max Storage | 1,365 acre-ft |
| Normal Storage | 1,020 acre-ft |
| Surface Area | 331 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Psalm Cody Ranch, LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 03/15/2022 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01127 |
| Federal ID | WY01127 |
| More Info | State Dam Safety Program |