Hendren Dam

Hendren Dam is an earth dam located in Clay County, Missouri, built in 1956. It carries a High hazard potential classification.

About Hendren Dam

The primary purpose of Hendren Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Hallmark Cards,inc (private). It impounds the Tr To Rush Creek near Liberty.

The dam stands 20 feet tall, creates a reservoir covering 9 acres, has a maximum storage capacity of 96 acre-feet, and collects water from a drainage area of 190 square miles. Completed in 1956, the structure is well into its service life at over 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 03/27/1981. 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
CountyClay
Nearest CityLiberty
River/StreamTr To Rush Creek
Coordinates39.27623, -94.41122

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Year Completed1956 (70 years old)

Storage & Hydraulics

NID Storage96 acre-ft
Max Storage96 acre-ft
Normal Storage60 acre-ft
Surface Area9 acres
Drainage Area190 sq mi

Ownership & Safety

PurposeRecreation
OwnerHALLMARK CARDS,INC
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection03/27/1981
Emergency Action PlanNot Required

Identifiers

NID IDMO10043
Federal IDMO10043
More InfoState Dam Safety Program

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