Willow Creek Watershed Dam A- 24b

Willow Creek Watershed Dam A- 24b is an earth dam located in Ray County, Missouri, built in 1970. It carries a Low hazard potential classification.

About Willow Creek Watershed Dam A- 24b

The primary purpose of Willow Creek Watershed Dam A- 24b is grade stabilization. Grade stabilization dams prevent erosion by reducing the slope and velocity of water flowing through a channel. They're commonly used to stop gullies from deepening and to protect downstream land and infrastructure. The dam is owned by Willow Crk Wtsh Subdist (local government). It impounds the Tr-willow Creek near Henrietta.

The dam stands 31 feet tall and stretches 570 feet across, creates a reservoir covering 12 acres, has a maximum storage capacity of 201 acre-feet, and collects water from a drainage area of 140 square miles. Completed in 1970, 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.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyRay
Nearest CityHenrietta
River/StreamTr-willow Creek
Coordinates39.27056, -94.01583

Physical Characteristics

Dam TypeEarth
NID Height31 ft
Dam Height29 ft
Dam Length570 ft
Year Completed1970 (56 years old)

Storage & Hydraulics

NID Storage201 acre-ft
Max Storage201 acre-ft
Normal Storage100 acre-ft
Surface Area12 acres
Drainage Area140 sq mi
Max Discharge250 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeGrade Stabilization
OwnerWILLOW CRK WTSH SUBDIST
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDMO10235
Federal IDMO10235
More InfoState Dam Safety Program

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