West Fork Big Creek Dam B-135

West Fork Big Creek Dam B-135 is an earth dam located in Harrison County, Missouri, built in 1991. It carries a Low hazard potential classification.

Hazard potentialLowFailure would cause limited damage
ConditionNot assessed
Emergency action planNot reported
Last inspectionNot reported
Height30 ft
Built199135 years ago

Dam profile

NID height · 30 ft
30 FT TWO-STORY HOUSEMEDIAN U.S. DAM · 24 FT

30 ft tall and 510 ft long, taller than 68% of U.S. dams with a recorded height. Height is drawn to scale against a two-story house, about 25 ft; the profile is a generic embankment section and the water level is illustrative.

About West Fork Big Creek Dam B-135

The primary purpose of West Fork Big Creek Dam B-135 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 West Fork Big Creek Watershed (local government). It impounds the Tr-west Fork Big Creek near Pattonsburg.

The dam stands 30 feet tall and stretches 510 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 140 acre-feet, and collects water from a drainage area of 816 square miles. Completed in 1991, the structure is 35 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.

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Location

StateMissouri
CountyHarrison
Nearest CityPattonsburg
River/StreamTr-west Fork Big Creek
Coordinates40.23941, -94.09467

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length510 ft
Year Completed1991 (35 years old)

Storage & Hydraulics

NID Storage140 acre-ft
Max Storage140 acre-ft
Normal Storage34 acre-ft
Surface Area3 acres
Drainage Area816 sq mi
Max Discharge393 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerWest Fork Big Creek Watershed
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot assessed
Emergency Action PlanNot Required

Identifiers

NID IDMO50094
Federal IDMO50094
More InfoState Dam Safety Program