Grindstone-lost-muddy Watershed Dam B-36

Grindstone-lost-muddy Watershed Dam B-36 is an earth dam located in DeKalb County, Missouri, built in 1973. It carries a Low hazard potential classification.

About Grindstone-lost-muddy Watershed Dam B-36

The primary purpose of Grindstone-lost-muddy Watershed Dam B-36 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 Gndsn-lst-mdy Cr Wsd Sbd (local government). It impounds the Tr-west Fork Lost Creek near Pattonsburg.

The dam stands 32 feet tall and stretches 480 feet across, creates a reservoir covering 2 acres, has a maximum storage capacity of 160 acre-feet, and collects water from a drainage area of 51 square miles. Completed in 1973, 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 32 feet, this dam is taller than 76% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyDeKalb
Nearest CityPattonsburg
River/StreamTr-west Fork Lost Creek
Coordinates39.82629, -94.34812

Physical Characteristics

Dam TypeEarth
NID Height32 ft
Dam Height32 ft
Dam Length480 ft
Year Completed1973 (53 years old)

Storage & Hydraulics

NID Storage160 acre-ft
Max Storage160 acre-ft
Normal Storage59 acre-ft
Surface Area2 acres
Drainage Area51 sq mi
Max Discharge400 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeGrade Stabilization
OwnerGNDSN-LST-MDY CR WSD SBD
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDMO10325
Federal IDMO10325
More InfoState Dam Safety Program

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