Grassey Lake

Grassey Lake is an earth dam located in Sanpete County, Utah, built in 1945. It carries a Low hazard potential classification.

About Grassey Lake

The primary purpose of Grassey Lake is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Forest Service,u.s. -manti-lasal (federal). It impounds the Little Creek near Orangeville.

The dam stands 18 feet tall and stretches 620 feet across, has a maximum storage capacity of 190 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1945, the structure is well-established, with more than 75 years of service.

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 10/01/2002. That was over 23 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateUtah
CountySanpete
Nearest CityOrangeville
River/StreamLittle Creek
Coordinates39.32378, -111.32981

Physical Characteristics

Dam TypeEarth
NID Height18 ft
Dam Length620 ft
Year Completed1945 (81 years old)

Storage & Hydraulics

NID Storage190 acre-ft
Max Storage190 acre-ft
Normal Storage132 acre-ft
Drainage Area0 sq mi

Ownership & Safety

PurposeIrrigation
OwnerFOREST SERVICE,U.S. -MANTI-LASAL
Owner TypeFederal
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection10/01/2002
Emergency Action PlanNot Required

Identifiers

NID IDUT00125
Federal IDUT00125
More InfoState Dam Safety Program

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