Moccasin Lake

Moccasin Lake is an earth dam located in Duchesne County, Utah, built in 1923. It carries a Low hazard potential classification.

About Moccasin Lake

The primary purpose of Moccasin Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Whiterocks Irrigation Co (private). It impounds the Whiterocks River near Whiterocks.

The dam stands 15 feet tall and stretches 797 feet across, has a maximum storage capacity of 113 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1923, the structure is over a century old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. The most recent inspection on record was 07/14/2003. That was over 22 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateUtah
CountyDuchesne
Nearest CityWhiterocks
River/StreamWhiterocks River
Coordinates40.79352, -110.01071

Physical Characteristics

Dam TypeEarth
NID Height15 ft
Dam Length797 ft
Year Completed1923 (103 years old)

Storage & Hydraulics

NID Storage113 acre-ft
Max Storage113 acre-ft
Normal Storage90 acre-ft
Drainage Area1 sq mi
Spillway TypeUncontrolled

Ownership & Safety

PurposeIrrigation
OwnerWHITEROCKS IRRIGATION CO
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection07/14/2003
Emergency Action PlanNot Required

Identifiers

NID IDUT00213
Federal IDUT00213
More InfoState Dam Safety Program

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