American Fork Debris Basin

American Fork Debris Basin is an earth dam located in Utah County, Utah, built in 1984. It carries a Significant hazard potential classification.

About American Fork Debris Basin

The primary purpose of American Fork Debris Basin is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Highland City/american Fork City (local government). It impounds the American Fork River near American Fork.

The dam stands 22 feet tall and stretches 2,400 feet across, has a maximum storage capacity of 236 acre-feet, and collects water from a drainage area of 64 square miles. Completed in 1984, the structure is 42 years old.

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 09/06/2022.

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Significant HazardNot Rated ConditionEmergency Action Plan: Yes

Location

StateUtah
CountyUtah
Nearest CityAmerican Fork
River/StreamAmerican Fork River
Coordinates40.43185, -111.76410

Physical Characteristics

Dam TypeEarth
NID Height22 ft
Dam Length2,400 ft
Year Completed1984 (42 years old)

Storage & Hydraulics

NID Storage236 acre-ft
Max Storage236 acre-ft
Normal Storage90 acre-ft
Drainage Area64 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerHIGHLAND CITY/AMERICAN FORK CITY
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentNot Rated
Last Inspection09/06/2022
Emergency Action PlanYes

Identifiers

NID IDUT00469
Federal IDUT00469
More InfoState Dam Safety Program

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