Pyramid Dam
Pyramid 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 Pyramid Dam
Pyramid Dam is a dam in Washakie, Wyoming. The dam is owned by Doi Blm (federal). It impounds the Pyramid Draw near Tensleep Wy.
The dam stands 30 feet tall and stretches 268 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 59 acre-feet, and collects water from a drainage area of 640 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 08/01/2016.
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Location
| State | Wyoming |
| County | Washakie |
| Nearest City | Tensleep Wy |
| River/Stream | Pyramid Draw |
| Coordinates | 43.83026, -107.57744 |
Physical Characteristics
| Dam Type | Gravity |
| NID Height | 30 ft |
| Dam Length | 268 ft |
| Year Completed | 2003 (23 years old) |
Storage & Hydraulics
| NID Storage | 59 acre-ft |
| Max Storage | 59 acre-ft |
| Normal Storage | 29 acre-ft |
| Surface Area | 4 acres |
| Drainage Area | 640 sq mi |
| Spillway Type | None |
Ownership & Safety
| Purpose | Other |
| Owner | DOI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Poor |
| Last Inspection | 08/01/2016 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01815 |
| Federal ID | WY01815 |
| More Info | State Dam Safety Program |