Flagstone
Flagstone is an earth dam located in Washakie County, Wyoming, built in 1965. It carries a Low hazard potential classification and has a fair condition assessment.
About Flagstone
The primary purpose of Flagstone is fire protection, stock, or small fish pond. The dam maintains a small impoundment used for fire suppression, livestock watering, or as a fish pond. The dam is owned by Usdi Blm (federal). It impounds the Flagstone Draw.
The dam stands 27 feet tall and stretches 248 feet across, creates a reservoir covering 4 acres, and has a maximum storage capacity of 48 acre-feet. Completed in 1965, 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 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 09/14/2023.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wyoming |
| County | Washakie |
| River/Stream | Flagstone Draw |
| Coordinates | 43.97889, -107.47000 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 27 ft |
| Dam Height | 27 ft |
| Dam Length | 248 ft |
| Year Completed | 1965 (61 years old) |
Storage & Hydraulics
| NID Storage | 48 acre-ft |
| Max Storage | 48 acre-ft |
| Normal Storage | 28 acre-ft |
| Surface Area | 4 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Fire Protection, Stock, Or Small Fish Pond |
| Owner | USDI BLM |
| Owner Type | Federal |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 09/14/2023 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY01650 |
| Federal ID | WY01650 |
| More Info | State Dam Safety Program |