American Fork Lower Reservoir is an earth dam located in Utah County, Utah, built in 2009. It carries a Significant hazard potential classification and has a satisfactory condition assessment.
Dam profile
NID height · 25 ft25 ft tall and 1,420 ft long, taller than 50% of U.S. dams with a recorded height. 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 American Fork Lower Reservoir
The primary purpose of American Fork Lower Reservoir is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by American Fork City (private).
The dam stands 25 feet tall and stretches 1,420 feet across, and has a maximum storage capacity of 34 acre-feet. Completed in 2009, the structure is relatively new.
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. 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 08/09/2023.
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Location
| State | Utah |
| County | Utah |
| Nearest City | American Fork |
| Coordinates | 40.40942, -111.78882 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 25 ft |
| Dam Length | 1,420 ft |
| Year Completed | 2009 (17 years old) |
Storage & Hydraulics
| NID Storage | 34 acre-ft |
| Max Storage | 34 acre-ft |
| Normal Storage | 27 acre-ft |
| Max Discharge | 59 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Irrigation |
| Owner | American Fork City |
| Owner Type | Private |
| Hazard Classification | Significant |
| Condition Assessment | Satisfactory |
| Last Inspection | 08/09/2023 |
| Emergency Action Plan | Yes |
Identifiers
| NID ID | UT53478 |
| Federal ID | UT53478 |
| More Info | State Dam Safety Program |