Gary is an earth dam located in Campbell County, Wyoming, built in 1952. It carries a Low hazard potential classification and has a poor condition assessment.
Dam profile
NID height · 34 ft34 ft tall and 390 ft long, taller than 78% 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 Gary
The primary purpose of Gary is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Trail Creek Grazing Assn. (private). It impounds the N Fork Trail Creek near Powderville, Mt.
The dam stands 34 feet tall and stretches 390 feet across, creates a reservoir covering 15 acres, and has a maximum storage capacity of 216 acre-feet. Completed in 1952, 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 06/28/2024.
At 34 feet, this dam is taller than 78% of dams nationwide.
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Location
| State | Wyoming |
| County | Campbell |
| Nearest City | Powderville, Mt |
| River/Stream | N Fork Trail Creek |
| Coordinates | 44.96417, -105.23222 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 34 ft |
| Dam Height | 34 ft |
| Dam Length | 390 ft |
| Year Completed | 1952 (74 years old) |
Storage & Hydraulics
| NID Storage | 216 acre-ft |
| Max Storage | 216 acre-ft |
| Normal Storage | 129 acre-ft |
| Surface Area | 15 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Trail Creek Grazing Assn. |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 06/28/2024 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01022 |
| Federal ID | WY01022 |
| More Info | State Dam Safety Program |