Oak-middle 66-a

Oak-middle 66-a is an earth dam located in Butler County, Nebraska, built in 1983. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Oak-middle 66-a

The primary purpose of Oak-middle 66-a 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 Lower Platte South Natural Resources District (local government). It impounds the Tr-oak Creek near Raymond.

The dam stands 30 feet tall and stretches 763 feet across, creates a reservoir covering 16 acres, has a maximum storage capacity of 428 acre-feet, and collects water from a drainage area of 1 square miles. Completed in 1983, the structure is 43 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 04/26/2021.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateNebraska
CountyButler
Nearest CityRaymond
River/StreamTr-oak Creek
Coordinates41.06800, -96.98933

Physical Characteristics

Dam TypeEarth
NID Height30 ft
Dam Height30 ft
Dam Length763 ft
Year Completed1983 (43 years old)

Storage & Hydraulics

NID Storage428 acre-ft
Max Storage428 acre-ft
Normal Storage75 acre-ft
Surface Area16 acres
Drainage Area1 sq mi
Max Discharge467 cfs

Ownership & Safety

PurposeFlood Risk Reduction
OwnerLower Platte South Natural Resources District
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection04/26/2021
Emergency Action PlanNot Required

Identifiers

NID IDNE00298
Federal IDNE00298
More InfoState Dam Safety Program

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