Roadside Lake Dam

Roadside Lake Dam is an earth dam located in Franklin County, Missouri, built in 1950. It carries a Low hazard potential classification.

About Roadside Lake Dam

The primary purpose of Roadside Lake Dam is recreation. The dam creates a reservoir used for recreational activities such as fishing, boating, and swimming. The dam is owned by John Weir (private). It impounds the Pin Oak Creek near Washington.

The dam stands 20 feet tall, creates a reservoir covering 12 acres, has a maximum storage capacity of 128 acre-feet, and collects water from a drainage area of 570 square miles. Completed in 1950, the structure is well-established, with more than 75 years of service.

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. The most recent inspection on record was 01/21/1981. That was over 45 years ago.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateMissouri
CountyFranklin
Nearest CityWashington
River/StreamPin Oak Creek
Coordinates38.60614, -91.27682

Physical Characteristics

Dam TypeEarth
NID Height20 ft
Dam Height20 ft
Year Completed1950 (76 years old)

Storage & Hydraulics

NID Storage128 acre-ft
Max Storage128 acre-ft
Normal Storage70 acre-ft
Surface Area12 acres
Drainage Area570 sq mi

Ownership & Safety

PurposeRecreation
OwnerJOHN WEIR
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection01/21/1981
Emergency Action PlanNot Required

Identifiers

NID IDMO31047
Federal IDMO31047
More InfoState Dam Safety Program

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