Scs-nine Mile Creek Site-01

Scs-nine Mile Creek Site-01 is an earth dam located in Roger Mills County, Oklahoma, built in 1958. It carries a Significant hazard potential classification and has a fair condition assessment.

About Scs-nine Mile Creek Site-01

The primary purpose of Scs-nine Mile Creek Site-01 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 Upper Washita Cons Dist (state). It impounds the Tr-washita River near Strong City.

The dam stands 51 feet tall and stretches 1,620 feet across, creates a reservoir covering 68 acres, and has a maximum storage capacity of 1,440 acre-feet. Completed in 1958, 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 02/16/2012. That was over 14 years ago.

At 51 feet, this dam is taller than 93% of dams nationwide.

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Significant HazardFair ConditionEmergency Action Plan: Not Required

Location

StateOklahoma
CountyRoger Mills
Nearest CityStrong City
River/StreamTr-washita River
Coordinates35.70104, -99.56750

Physical Characteristics

Dam TypeEarth
NID Height51 ft
Dam Height51 ft
Dam Length1,620 ft
Year Completed1958 (68 years old)

Storage & Hydraulics

NID Storage1,440 acre-ft
Max Storage1,440 acre-ft
Normal Storage483 acre-ft
Surface Area68 acres
Max Discharge8,622 cfs
Spillway TypeControlled

Ownership & Safety

PurposeFlood Risk Reduction
OwnerUPPER WASHITA CONS DIST
Owner TypeState
Hazard ClassificationSignificant
Condition AssessmentFair
Last Inspection02/16/2012
Emergency Action PlanNot Required

Identifiers

NID IDOK01024
Federal IDOK01024
More InfoState Dam Safety Program

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