Atwood Lake is an earth dam located in Duchesne County, Utah, built in 1950. It carries a Significant hazard potential classification.
Dam profile
NID height · 23 ft23 ft tall and 640 ft long. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.
About Atwood Lake
The primary purpose of Atwood Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Dry Gulch Irrigation Company (private). It impounds the Atwood Creek near Whiterocks.
The dam stands 23 feet tall and stretches 640 feet across, has a maximum storage capacity of 3,600 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.
This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. An emergency action plan is in place for this dam. The most recent inspection on record was 08/25/2022.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Utah |
| County | Duchesne |
| Nearest City | Whiterocks |
| River/Stream | Atwood Creek |
| Coordinates | 40.74685, -110.28738 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 23 ft |
| Dam Length | 640 ft |
| Year Completed | 1950 (76 years old) |
Storage & Hydraulics
| NID Storage | 3,600 acre-ft |
| Max Storage | 3,600 acre-ft |
| Normal Storage | 2,699 acre-ft |
| Drainage Area | 4 sq mi |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Dry Gulch Irrigation Company |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Not assessed |
| Last Inspection | 08/25/2022 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | UT00014 |
| Federal ID | UT00014 |
| More Info | State Dam Safety Program |