Orchard
Orchard is an earth dam located in Washakie County, Wyoming, built in 1925. It carries a Low hazard potential classification and has a fair condition assessment.
About Orchard
The primary purpose of Orchard is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Orchard Ranch, Llc C/c April O. Nelson (private). It impounds the Lone Tree Creek near Tensleep.
The dam stands 30 feet tall and stretches 472 feet across, creates a reservoir covering 23 acres, and has a maximum storage capacity of 347 acre-feet. Completed in 1925, 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 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 08/27/2020.
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Location
| State | Wyoming |
| County | Washakie |
| Nearest City | Tensleep |
| River/Stream | Lone Tree Creek |
| Coordinates | 43.51570, -107.48210 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 30 ft |
| Dam Height | 30 ft |
| Dam Length | 472 ft |
| Year Completed | 1925 (101 years old) |
Storage & Hydraulics
| NID Storage | 347 acre-ft |
| Max Storage | 347 acre-ft |
| Normal Storage | 212 acre-ft |
| Surface Area | 23 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | ORCHARD RANCH, LLC c/c April O. Nelson |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 08/27/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01067 |
| Federal ID | WY01067 |
| More Info | State Dam Safety Program |