Lake Frances

Lake Frances is a dam located in Adair County, Oklahoma, built in 1931. It carries a Undetermined hazard potential classification.

About Lake Frances

The primary purpose of Lake Frances is water supply. The dam stores water for municipal, industrial, or agricultural use, helping ensure a reliable supply for the surrounding area. The dam is owned by Siloam Springs Water Resources Co Inc (local government). It impounds the Illinois River near Watts.

The dam stands 40 feet tall, has a maximum storage capacity of 22,450 acre-feet, and collects water from a drainage area of 635 square miles. Completed in 1931, the structure is well-established, with more than 75 years of service.

At 40 feet, this dam is taller than 87% of dams nationwide.

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Undetermined HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateOklahoma
CountyAdair
Nearest CityWatts
River/StreamIllinois River
Coordinates36.13021, -94.56433

Physical Characteristics

NID Height40 ft
Dam Height40 ft
Year Completed1931 (95 years old)

Storage & Hydraulics

NID Storage22,450 acre-ft
Max Storage22,450 acre-ft
Drainage Area635 sq mi
Spillway TypeControlled

Ownership & Safety

PurposeWater Supply
OwnerSILOAM SPRINGS WATER RESOURCES CO INC
Owner TypeLocal Government
Hazard ClassificationUndetermined
Condition AssessmentNot Rated
Emergency Action PlanNot Required

Identifiers

NID IDOK00073
Federal IDOK00073
More InfoState Dam Safety Program

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