Gary Cook

Gary Cook is an earth dam located in Bollinger County, Missouri, built in 1997. It carries a Low hazard potential classification.

About Gary Cook

The primary purpose of Gary Cook 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 Gary Cook (private). It impounds the Cedar Branch near Marble Hill.

The dam stands 38 feet tall and stretches 434 feet across, creates a reservoir covering 4 acres, has a maximum storage capacity of 132 acre-feet, and collects water from a drainage area of 172 square miles. Completed in 1997, the structure is 29 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. The most recent inspection on record was 11/01/1999. That was over 26 years ago.

At 38 feet, this dam is taller than 85% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyBollinger
Nearest CityMarble Hill
River/StreamCedar Branch
Coordinates37.49279, -89.96187

Physical Characteristics

Dam TypeEarth
NID Height38 ft
Dam Height31 ft
Dam Length434 ft
Year Completed1997 (29 years old)

Storage & Hydraulics

NID Storage132 acre-ft
Max Storage132 acre-ft
Normal Storage90 acre-ft
Surface Area4 acres
Drainage Area172 sq mi
Max Discharge21 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerGARY COOK
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection11/01/1999
Emergency Action PlanNot Required

Identifiers

NID IDMO50445
Federal IDMO50445
More InfoState Dam Safety Program

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