Boyer Lake
Boyer Lake is an earth dam located in Summit County, Utah, built in 1939. It carries a High hazard potential classification and has a fair condition assessment.
About Boyer Lake
The primary purpose of Boyer Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Chalk Creek-hoytsville Irrigation (private). It impounds the Chalk Creek near Coalville.
The dam stands 45 feet tall and stretches 850 feet across, has a maximum storage capacity of 1,300 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1939, the structure is well-established, with more than 75 years of service.
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. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. An emergency action plan is in place for this dam. The most recent inspection on record was 07/27/2023.
At 45 feet, this dam is taller than 91% of dams nationwide.
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 | Coalville |
| River/Stream | Chalk Creek |
| Coordinates | 40.86816, -111.02839 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 45 ft |
| Dam Length | 850 ft |
| Year Completed | 1939 (87 years old) |
Storage & Hydraulics
| NID Storage | 1,300 acre-ft |
| Max Storage | 1,300 acre-ft |
| Normal Storage | 1,200 acre-ft |
| Drainage Area | 2 sq mi |
| Max Discharge | 24 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | CHALK CREEK-HOYTSVILLE IRRIGATION |
| Owner Type | Private |
| Hazard Classification | High |
| Condition Assessment | Fair |
| Last Inspection | 07/27/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | UT00052 |
| Federal ID | UT00052 |
| More Info | State Dam Safety Program |