Scs-little Washita River Site-06

Scs-little Washita River Site-06 is an earth dam located in Grady County, Oklahoma, built in 1974. It carries a Significant hazard potential classification and has a fair condition assessment.

About Scs-little Washita River Site-06

The primary purpose of Scs-little Washita River Site-06 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 Tr-little Washita Riv near Ninnekah.

The dam stands 32 feet tall and stretches 880 feet across, creates a reservoir covering 10 acres, and has a maximum storage capacity of 294 acre-feet. Completed in 1974, 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 11/28/2011. That was over 14 years ago.

At 32 feet, this dam is taller than 76% of dams nationwide.

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Significant HazardFair ConditionEmergency Action Plan: Not Required

Location

StateOklahoma
CountyGrady
Nearest CityNinnekah
River/StreamTr-little Washita Riv
Coordinates34.92161, -97.94979

Physical Characteristics

Dam TypeEarth
NID Height32 ft
Dam Height32 ft
Dam Length880 ft
Year Completed1974 (52 years old)

Storage & Hydraulics

NID Storage294 acre-ft
Max Storage294 acre-ft
Normal Storage44 acre-ft
Surface Area10 acres
Max Discharge1,400 cfs
Spillway TypeControlled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerGRADY CO CONS DIST
Owner TypeState
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection11/28/2011
Emergency Action PlanNot Required

Identifiers

NID IDOK20848
Federal IDOK20848
More InfoState Dam Safety Program

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