North Utah County - Silver Lake Flat
North Utah County - Silver Lake Flat is an earth dam located in Utah County, Utah, built in 1971. It carries a High hazard potential classification and has a satisfactory condition assessment.
About North Utah County - Silver Lake Flat
The primary purpose of North Utah County - Silver Lake Flat is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by North Utah County Water Conservancy Dist (local government). It impounds the Silver Creek near American Fork.
The dam stands 84 feet tall and stretches 1,500 feet across, has a maximum storage capacity of 1,384 acre-feet, and collects water from a drainage area of 4 square miles. Completed in 1971, the structure is well into its service life at over 50 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 09/06/2023.
At 84 feet, this dam is taller than 97% 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 | Utah |
| Nearest City | American Fork |
| River/Stream | Silver Creek |
| Coordinates | 40.50352, -111.65409 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 84 ft |
| Dam Length | 1,500 ft |
| Year Completed | 1971 (55 years old) |
Storage & Hydraulics
| NID Storage | 1,384 acre-ft |
| Max Storage | 1,384 acre-ft |
| Normal Storage | 1,040 acre-ft |
| Drainage Area | 4 sq mi |
| Max Discharge | 107 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Water Supply |
| Owner | North Utah County Water Conservancy Dist |
| Owner Type | Local Government |
| Hazard Classification | High |
| Condition Assessment | Satisfactory |
| Last Inspection | 09/06/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | UT00276 |
| Federal ID | UT00276 |
| More Info | State Dam Safety Program |