Scs-little Washita River Site-38

Scs-little Washita River Site-38 is an earth dam located in Grady County, Oklahoma, built in 1972. It carries a Significant hazard potential classification and has a fair condition assessment.

About Scs-little Washita River Site-38

The primary purpose of Scs-little Washita River Site-38 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 Grady Co Cons Dist (state). It impounds the West Bills Creek near Ninnekah.

The dam stands 54 feet tall and stretches 1,190 feet across, creates a reservoir covering 21 acres, and has a maximum storage capacity of 762 acre-feet. Completed in 1972, the structure is well into its service life at over 50 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated fair — the dam has minor deficiencies that are being addressed or do not pose an immediate safety threat. The most recent inspection on record was 12/02/2011. That was over 14 years ago.

At 54 feet, this dam is taller than 94% of dams nationwide.

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Significant HazardFair ConditionEmergency Action Plan: Not Required

Location

StateOklahoma
CountyGrady
Nearest CityNinnekah
River/StreamWest Bills Creek
Coordinates34.93520, -98.08327

Physical Characteristics

Dam TypeEarth
NID Height54 ft
Dam Height54 ft
Dam Length1,190 ft
Year Completed1972 (54 years old)

Storage & Hydraulics

NID Storage762 acre-ft
Max Storage762 acre-ft
Normal Storage149 acre-ft
Surface Area21 acres
Max Discharge5,274 cfs
Spillway TypeControlled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerGRADY CO CONS DIST
Owner TypeState
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection12/02/2011
Emergency Action PlanNot Required

Identifiers

NID IDOK20837
Federal IDOK20837
More InfoState Dam Safety Program

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