Wells Lake Dam

Wells Lake Dam is an earth dam located in St. Francois County, Missouri, built in 1972. It carries a High hazard potential classification.

About Wells Lake Dam

The primary purpose of Wells 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 Wells (private). It impounds the Tr-hazel Run near Desloge.

The dam stands 28 feet tall, creates a reservoir covering 4 acres, has a maximum storage capacity of 110 acre-feet, and collects water from a drainage area of 75 square miles. Completed in 1972, 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 11/11/1980. 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
CountySt. Francois
Nearest CityDesloge
River/StreamTr-hazel Run
Coordinates37.97063, -90.44263

Physical Characteristics

Dam TypeEarth
NID Height28 ft
Dam Height28 ft
Year Completed1972 (54 years old)

Storage & Hydraulics

NID Storage110 acre-ft
Max Storage110 acre-ft
Normal Storage110 acre-ft
Surface Area4 acres
Drainage Area75 sq mi

Ownership & Safety

PurposeRecreation
OwnerCHARLES WELLS
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection11/11/1980
Emergency Action PlanNot Required

Identifiers

NID IDMO30906
Federal IDMO30906
More InfoState Dam Safety Program

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