Flat
Flat is an earth dam located in Campbell County, Wyoming, built in 1914. It carries a Low hazard potential classification and has a fair condition assessment.
About Flat
The primary purpose of Flat is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Contura Wyoming Land Llc (private). It impounds the Flat Creek near Hulett.
The dam stands 10 feet tall and stretches 1,200 feet across, creates a reservoir covering 48 acres, and has a maximum storage capacity of 149 acre-feet. Completed in 1914, 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 07/24/2020.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Wyoming |
| County | Campbell |
| Nearest City | Hulett |
| River/Stream | Flat Creek |
| Coordinates | 44.08270, -105.51140 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 10 ft |
| Dam Height | 10 ft |
| Dam Length | 1,200 ft |
| Year Completed | 1914 (112 years old) |
Storage & Hydraulics
| NID Storage | 149 acre-ft |
| Max Storage | 149 acre-ft |
| Normal Storage | 112 acre-ft |
| Surface Area | 48 acres |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | CONTURA WYOMING LAND LLC |
| Owner Type | Private |
| Hazard Classification | Low |
| Condition Assessment | Fair |
| Last Inspection | 07/24/2020 |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | WY00901 |
| Federal ID | WY00901 |
| More Info | State Dam Safety Program |