Grindstone-lost-muddy Watershed Dam C-75

Grindstone-lost-muddy Watershed Dam C-75 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 C-75

The primary purpose of Grindstone-lost-muddy Watershed Dam C-75 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-lost Creek near Pattonsburg.

The dam stands 24 feet tall and stretches 580 feet across, creates a reservoir covering 10 acres, has a maximum storage capacity of 120 acre-feet, and collects water from a drainage area of 240 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.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyDeKalb
Nearest CityPattonsburg
River/StreamTr-lost Creek
Coordinates39.90080, -94.45025

Physical Characteristics

Dam TypeEarth
NID Height24 ft
Dam Height24 ft
Dam Length580 ft
Year Completed1973 (53 years old)

Storage & Hydraulics

NID Storage120 acre-ft
Max Storage120 acre-ft
Normal Storage49 acre-ft
Surface Area10 acres
Drainage Area240 sq mi
Max Discharge295 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 IDMO10323
Federal IDMO10323
More InfoState Dam Safety Program

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