Land Of Lakes Dam

Land Of Lakes Dam is an earth dam located in Jefferson County, Missouri, built in 1946. It carries a High hazard potential classification.

About Land Of Lakes Dam

The primary purpose of Land Of Lakes Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Land Of Lk Improv Assoc (private). It impounds the Tr-bear Creek near Weber Hill.

The dam stands 30 feet tall, creates a reservoir covering 3 acres, has a maximum storage capacity of 48 acre-feet, and collects water from a drainage area of 69 square miles. Completed in 1946, the structure is well-established, with more than 75 years of service.

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 11/29/1978. That was 47 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
CountyJefferson
Nearest CityWeber Hill
River/StreamTr-bear Creek
Coordinates38.42092, -90.55115

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Year Completed1946 (80 years old)

Storage & Hydraulics

NID Storage48 acre-ft
Max Storage48 acre-ft
Normal Storage26 acre-ft
Surface Area3 acres
Drainage Area69 sq mi

Ownership & Safety

PurposeRecreation
OwnerLAND OF LK IMPROV ASSOC
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection11/29/1978
Emergency Action PlanNot Required

Identifiers

NID IDMO30451
Federal IDMO30451
More InfoState Dam Safety Program

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