Monroe City South Lake Dam

Monroe City South Lake Dam is an earth dam located in Monroe County, Missouri, built in 1937. It carries a High hazard potential classification.

About Monroe City South Lake Dam

The primary purpose of Monroe City South Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by City Of Monroe (local government). It impounds the Tr.to Little Indian Creek near Stoutsville.

The dam stands 31 feet tall, creates a reservoir covering 50 acres, has a maximum storage capacity of 829 acre-feet, and collects water from a drainage area of 668 square miles. Completed in 1937, 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 06/13/1979. 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
CountyMonroe
Nearest CityStoutsville
River/StreamTr.to Little Indian Creek
Coordinates39.62087, -91.73397

Physical Characteristics

Dam TypeEarth
NID Height31 ft
Dam Height31 ft
Year Completed1937 (89 years old)

Storage & Hydraulics

NID Storage829 acre-ft
Max Storage829 acre-ft
Normal Storage217 acre-ft
Surface Area50 acres
Drainage Area668 sq mi

Ownership & Safety

PurposeRecreation
OwnerCITY OF MONROE
Owner TypeLocal Government
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection06/13/1979
Emergency Action PlanNot Required

Identifiers

NID IDMO10538
Federal IDMO10538
More InfoState Dam Safety Program

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