Lost Cr Pilot Watershed Dam G-1

Lost Cr Pilot Watershed Dam G-1 is an earth dam located in Lincoln County, Missouri, built in 1961. It carries a Low hazard potential classification.

About Lost Cr Pilot Watershed Dam G-1

The primary purpose of Lost Cr Pilot Watershed Dam G-1 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 Hugh Steavenson Trust (local government). It impounds the Union Creek near Elsberry.

The dam stands 33 feet tall and stretches 1,170 feet across, creates a reservoir covering 1 acres, has a maximum storage capacity of 313 acre-feet, and collects water from a drainage area of 64 square miles. Completed in 1961, the structure is well into its service life at over 50 years 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.

At 33 feet, this dam is taller than 78% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyLincoln
Nearest CityElsberry
River/StreamUnion Creek
Coordinates39.14029, -90.79322

Physical Characteristics

Dam TypeEarth
NID Height33 ft
Dam Height31 ft
Dam Length1,170 ft
Year Completed1961 (65 years old)

Storage & Hydraulics

NID Storage313 acre-ft
Max Storage313 acre-ft
Normal Storage73 acre-ft
Surface Area1 acres
Drainage Area64 sq mi
Max Discharge1,570 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerHUGH STEAVENSON TRUST
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDMO10445
Federal IDMO10445
More InfoState Dam Safety Program

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