Stateline Dam is an earth dam located in Summit County, Utah, built in 1979. It carries a High hazard potential classification.
Dam profile
NID height · 143 ft143 ft tall and 2,800 ft long, taller than 99% of U.S. dams with a recorded height. Height is drawn to scale against a ten-story building, about 100 ft; the profile is a generic embankment section and the water level is illustrative.
About Stateline Dam
The primary purpose of Stateline Dam is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Bureau of Reclamation (federal). It impounds the E. Fork Smiths Fork near Robertson, Wyo..
The dam stands 143 feet tall and stretches 2,800 feet across, creates a reservoir covering 306 acres, has a maximum storage capacity of 15,932 acre-feet, and collects water from a drainage area of 48 square miles. Completed in 1979, the structure is 47 years old.
This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. An emergency action plan is in place for this dam. The most recent inspection on record was 07/15/2020.
At 143 feet, this dam is taller than 99% of all dams in the United States.
Living Downstream
If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Utah dam safety program can provide more specific information about emergency planning for this structure.
Search for dams near your address to see all dams in your area with hazard classifications and safety data.
Location
| State | Utah |
| County | Summit |
| Nearest City | Robertson, Wyo. |
| River/Stream | E. Fork Smiths Fork |
| Coordinates | 40.98850, -110.38570 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 143 ft |
| Dam Length | 2,800 ft |
| Year Completed | 1979 (47 years old) |
Storage & Hydraulics
| NID Storage | 15,932 acre-ft |
| Max Storage | 15,932 acre-ft |
| Normal Storage | 14,020 acre-ft |
| Surface Area | 306 acres |
| Drainage Area | 48 sq mi |
| Max Discharge | 5,850 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | Bureau of Reclamation |
| Owner Type | Federal |
| Hazard Classification | High |
| Condition Assessment | Not assessed |
| Last Inspection | 07/15/2020 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | UT10156 |
| Federal ID | UT10156 |
| More Info | State Dam Safety Program |