Henpeck Hollow Dam

Henpeck Hollow Dam is an earth dam located in Washington County, Missouri, built in 1976. It carries a High hazard potential classification.

About Henpeck Hollow Dam

The primary purpose of Henpeck Hollow Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Donald Gill (private). It impounds the Tr-courtois Creek near Berryman.

The dam stands 24 feet tall, creates a reservoir covering 11 acres, has a maximum storage capacity of 141 acre-feet, and collects water from a drainage area of 300 square miles. Completed in 1976, the structure is 50 years old.

This dam carries a high hazard potential classification, which means that a failure or uncontrolled release of water would likely cause loss of human life. This classification reflects the consequences of failure, not the likelihood — it indicates that people live or work in the area downstream. The most recent inspection on record was 08/07/1980. That was 45 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.

Living Downstream

If you live or work downstream of this dam, consider taking these steps: learn your local evacuation routes, check whether your county emergency management office has a dam failure inundation map, and sign up for local emergency alerts. The Missouri dam safety program can provide more specific information about emergency planning for this structure.

Search for dams near your address to see all dams in your area with hazard classifications and safety data.

High HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyWashington
Nearest CityBerryman
River/StreamTr-courtois Creek
Coordinates37.98160, -91.09286

Physical Characteristics

Dam TypeEarth
NID Height24 ft
Dam Height24 ft
Year Completed1976 (50 years old)

Storage & Hydraulics

NID Storage141 acre-ft
Max Storage141 acre-ft
Normal Storage33 acre-ft
Surface Area11 acres
Drainage Area300 sq mi

Ownership & Safety

PurposeRecreation
OwnerDONALD GILL
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection08/07/1980
Emergency Action PlanNot Required

Identifiers

NID IDMO31256
Federal IDMO31256
More InfoState Dam Safety Program

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