Laguna Palma Dam

Laguna Palma Dam is a gravity dam located in Jefferson County, Missouri, built in 1947. It carries a High hazard potential classification.

About Laguna Palma Dam

The primary purpose of Laguna Palma Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Harold Whitman (private). It impounds the West Fork Plattin Creek near Crystal City.

The dam stands 26 feet tall and stretches 530 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 166 acre-feet, and collects water from a drainage area of 4,530 square miles. Completed in 1947, 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 05/02/1979. That was 46 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 CityCrystal City
River/StreamWest Fork Plattin Creek
Coordinates38.04298, -90.41861

Physical Characteristics

Dam TypeGravity
NID Height26 ft
Dam Height26 ft
Dam Length530 ft
Year Completed1947 (79 years old)

Storage & Hydraulics

NID Storage166 acre-ft
Max Storage166 acre-ft
Normal Storage98 acre-ft
Surface Area16 acres
Drainage Area4,530 sq mi
Max Discharge1,413 cfs
Spillway TypeUncontrolled

Ownership & Safety

PurposeRecreation
OwnerHAROLD WHITMAN
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection05/02/1979
Emergency Action PlanNot Required

Identifiers

NID IDMO30404
Federal IDMO30404
More InfoState Dam Safety Program

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