C + A Lake Dam

C + A Lake Dam is an earth dam located in Audrain County, Missouri, built in 1919. It carries a High hazard potential classification.

About C + A Lake Dam

C + A Lake Dam is a dam in Audrain, Missouri. The dam is owned by Ill Central Gulf Rr Co (private). It impounds the Tr-south Fk Salt River near Mexico.

The dam stands 27 feet tall, creates a reservoir covering 39 acres, has a maximum storage capacity of 563 acre-feet, and collects water from a drainage area of 1,869 square miles. Completed in 1919, the structure is over a century 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 10/13/1979. 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
CountyAudrain
Nearest CityMexico
River/StreamTr-south Fk Salt River
Coordinates39.16946, -91.86415

Physical Characteristics

Dam TypeEarth
NID Height27 ft
Dam Height27 ft
Year Completed1919 (107 years old)

Storage & Hydraulics

NID Storage563 acre-ft
Max Storage563 acre-ft
Normal Storage104 acre-ft
Surface Area39 acres
Drainage Area1,869 sq mi

Ownership & Safety

PurposeOther
OwnerILL CENTRAL GULF RR CO
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection10/13/1979
Emergency Action PlanNot Required

Identifiers

NID IDMO10105
Federal IDMO10105
More InfoState Dam Safety Program

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