Foffel Lake Dam

Foffel Lake Dam is an earth dam located in Johnson County, Missouri, built in 1963. It carries a High hazard potential classification.

About Foffel Lake Dam

The primary purpose of Foffel Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Charles Foffel (private). It impounds the Tr-clear Fork near Knob Noster.

The dam stands 20 feet tall, creates a reservoir covering 12 acres, has a maximum storage capacity of 128 acre-feet, and collects water from a drainage area of 55 square miles. Completed in 1963, 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 12/11/1980. 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
CountyJohnson
Nearest CityKnob Noster
River/StreamTr-clear Fork
Coordinates38.76907, -93.54544

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Year Completed1963 (63 years old)

Storage & Hydraulics

NID Storage128 acre-ft
Max Storage128 acre-ft
Normal Storage48 acre-ft
Surface Area12 acres
Drainage Area55 sq mi

Ownership & Safety

PurposeRecreation
OwnerCHARLES FOFFEL
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection12/11/1980
Emergency Action PlanNot Required

Identifiers

NID IDMO20494
Federal IDMO20494
More InfoState Dam Safety Program

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