West Fork Big Creek Dam L- 46b

West Fork Big Creek Dam L- 46b is an earth dam located in Harrison County, Missouri, built in 2008. It carries a Low hazard potential classification.

About West Fork Big Creek Dam L- 46b

The primary purpose of West Fork Big Creek Dam L- 46b 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 Wfbc Trustees (private). It impounds the Tr-little Creek near Bethany.

The dam stands 35 feet tall and stretches 470 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 143 acre-feet, and collects water from a drainage area of 170 square miles. Completed in 2008, the structure is relatively new.

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 35 feet, this dam is taller than 82% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyHarrison
Nearest CityBethany
River/StreamTr-little Creek
Coordinates40.36014, -94.13074

Physical Characteristics

Dam TypeEarth
NID Height35 ft
Dam Height32 ft
Dam Length470 ft
Year Completed2008 (18 years old)

Storage & Hydraulics

NID Storage143 acre-ft
Max Storage143 acre-ft
Normal Storage45 acre-ft
Surface Area4 acres
Drainage Area170 sq mi
Max Discharge366 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerWFBC TRUSTEES
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDMO51589
Federal IDMO51589
More InfoState Dam Safety Program

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