Hoop Lake

Hoop Lake is an earth dam located in Summit County, Utah, built in 1939. It carries a Significant hazard potential classification.

About Hoop Lake

The primary purpose of Hoop Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Hoop Lake Reservoir & Irrigation Co (private). It impounds the East Fork Of Beaver Creek near Lonetree Wyoming.

The dam stands 30 feet tall and stretches 824 feet across, has a maximum storage capacity of 4,800 acre-feet, and collects water from a drainage area of 25 square miles. Completed in 1939, the structure is well-established, with more than 75 years of service.

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 07/26/2023.

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Significant HazardNot Rated ConditionEmergency Action Plan: Yes

Location

StateUtah
CountySummit
Nearest CityLonetree Wyoming
River/StreamEast Fork Of Beaver Creek
Coordinates40.92519, -110.12571

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Length824 ft
Year Completed1939 (87 years old)

Storage & Hydraulics

NID Storage4,800 acre-ft
Max Storage4,800 acre-ft
Normal Storage3,925 acre-ft
Drainage Area25 sq mi

Ownership & Safety

PurposeIrrigation
OwnerHOOP LAKE RESERVOIR & IRRIGATION CO
Owner TypePrivate
Hazard ClassificationSignificant
Condition AssessmentNot Rated
Last Inspection07/26/2023
Emergency Action PlanYes

Identifiers

NID IDUT00143
Federal IDUT00143
More InfoState Dam Safety Program

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