Hays Lonell

Hays Lonell is an earth dam located in Comanche County, Oklahoma, built in 1975. It carries a Low hazard potential classification.

About Hays Lonell

The primary purpose of Hays Lonell is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Ronnie Castlebury (private). It impounds the Tr Little Washita River near Ninnekah.

The dam stands 35 feet tall and stretches 835 feet across, and has a maximum storage capacity of 525 acre-feet. Completed in 1975, the structure is well into its service life at over 50 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. The most recent inspection on record was 09/23/2010. That was over 15 years ago.

At 35 feet, this dam is taller than 82% of dams nationwide.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateOklahoma
CountyComanche
Nearest CityNinnekah
River/StreamTr Little Washita River
Coordinates34.82136, -98.16007

Physical Characteristics

Dam TypeEarth
NID Height35 ft
Dam Height35 ft
Dam Length835 ft
Year Completed1975 (51 years old)

Storage & Hydraulics

NID Storage525 acre-ft
Max Storage525 acre-ft
Normal Storage240 acre-ft
Max Discharge1,940 cfs
Spillway TypeControlled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerRONNIE CASTLEBURY
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection09/23/2010
Emergency Action PlanNot Required

Identifiers

NID IDOK13236
Federal IDOK13236
More InfoState Dam Safety Program

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