Wolfner Dam

Wolfner Dam is an earth dam located in St. Charles County, Missouri, built in 1981. It carries a Low hazard potential classification.

About Wolfner Dam

The primary purpose of Wolfner Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by John Wolfner (private). It impounds the Trib To Little Famme Osage Cr near Defiance.

The dam stands 25 feet tall, creates a reservoir covering 5 acres, has a maximum storage capacity of 60 acre-feet, and collects water from a drainage area of 350 square miles. Completed in 1981, the structure is 45 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountySt. Charles
Nearest CityDefiance
River/StreamTrib To Little Famme Osage Cr
Coordinates38.67465, -90.78805

Physical Characteristics

Dam TypeEarth
NID Height25 ft
Dam Height25 ft
Year Completed1981 (45 years old)

Storage & Hydraulics

NID Storage60 acre-ft
Max Storage60 acre-ft
Normal Storage42 acre-ft
Surface Area5 acres
Drainage Area350 sq mi

Ownership & Safety

PurposeRecreation
OwnerJOHN WOLFNER
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDMO31886
Federal IDMO31886
More InfoState Dam Safety Program

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