Weber Hill Terrace Lake Dam

Weber Hill Terrace Lake Dam is an earth dam located in Jefferson County, Missouri, built in 1957. It carries a High hazard potential classification and has a satisfactory condition assessment.

About Weber Hill Terrace Lake Dam

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

The dam stands 36 feet tall and stretches 519 feet across, creates a reservoir covering 9 acres, has a maximum storage capacity of 150 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1957, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 01/06/2022.

At 36 feet, this dam is taller than 83% of dams nationwide.

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 HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateMissouri
CountyJefferson
Nearest CityWeber Hill
River/StreamTr-bear Creek
Coordinates38.43830, -90.54451

Physical Characteristics

Dam TypeEarth
NID Height36 ft
Dam Height36 ft
Dam Length519 ft
Year Completed1957 (69 years old)

Storage & Hydraulics

NID Storage150 acre-ft
Max Storage150 acre-ft
Normal Storage117 acre-ft
Surface Area9 acres
Drainage Area0 sq mi
Max Discharge1,258 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerWEBER HILL TER COM ASSOC
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentSatisfactory
Last Inspection01/06/2022
Emergency Action PlanYes

Identifiers

NID IDMO30449
Federal IDMO30449
More InfoState Dam Safety Program

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