Little Lake In The Woods Dam

Little Lake In The Woods Dam is an earth dam located in St. Charles County, Missouri, built in 1965. It carries a High hazard potential classification.

About Little Lake In The Woods Dam

The primary purpose of Little Lake In The Woods Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by Jean Coggeshall (private). It impounds the Tr-schluersburg Creek near Schluersburg.

The dam stands 34 feet tall, creates a reservoir covering 8 acres, has a maximum storage capacity of 146 acre-feet, and collects water from a drainage area of 140 square miles. Completed in 1965, 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 03/02/1981. That was 45 years ago — unusually long for a high-hazard dam, which typically requires more frequent inspections.

At 34 feet, this dam is taller than 80% 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 HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountySt. Charles
Nearest CitySchluersburg
River/StreamTr-schluersburg Creek
Coordinates38.60917, -90.87098

Physical Characteristics

Dam TypeEarth
NID Height34 ft
Dam Height34 ft
Year Completed1965 (61 years old)

Storage & Hydraulics

NID Storage146 acre-ft
Max Storage146 acre-ft
Normal Storage78 acre-ft
Surface Area8 acres
Drainage Area140 sq mi

Ownership & Safety

PurposeRecreation
OwnerJEAN COGGESHALL
Owner TypePrivate
Hazard ClassificationHigh
Condition AssessmentNot Rated
Last Inspection03/02/1981
Emergency Action PlanNot Required

Identifiers

NID IDMO31366
Federal IDMO31366
More InfoState Dam Safety Program

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