Ray Detention Dam
Ray Detention Dam is a gravity dam located in Washakie County, Wyoming, built in 2003. It carries a Low hazard potential classification and has a poor condition assessment.
About Ray Detention Dam
The primary purpose of Ray Detention Dam is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Doi Blm (federal). It impounds the South Fork Wagon Prong Big Hor near Worland Wy.
The dam stands 27 feet tall and stretches 528 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 100 acre-feet, and collects water from a drainage area of 1,348 square miles. Completed in 2003, the structure is relatively new.
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 08/02/2016.
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Location
| State | Wyoming |
| County | Washakie |
| Nearest City | Worland Wy |
| River/Stream | South Fork Wagon Prong Big Hor |
| Coordinates | 43.83314, -107.69725 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 27 ft |
| Dam Length | 528 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 100 acre-ft |
| Max Storage | 100 acre-ft |
| Normal Storage | 50 acre-ft |
| Surface Area | 12 acres |
| Drainage Area | 1,348 sq mi |
| Max Discharge | 257 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 08/02/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01412 |
| Federal ID | WY01412 |
| More Info | State Dam Safety Program |