Wilson Creek 9-c

Wilson Creek 9-c is an earth dam located in Otoe County, Nebraska, built in 1970. It carries a Significant hazard potential classification and has a poor condition assessment.

About Wilson Creek 9-c

The primary purpose of Wilson Creek 9-c 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 Nemaha Natural Resources District (local government). It impounds the Tr-n Fk Little Nemaha River near Otoe.

The dam stands 38 feet tall and stretches 840 feet across, creates a reservoir covering 20 acres, has a maximum storage capacity of 860 acre-feet, and collects water from a drainage area of 2 square miles. Completed in 1970, 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 poor, meaning the dam has recognized safety deficiencies that require remediation to address risks. The most recent inspection on record was 10/12/2022.

At 38 feet, this dam is taller than 85% of dams nationwide.

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Significant HazardPoor ConditionEmergency Action Plan: Not Required

Location

StateNebraska
CountyOtoe
Nearest CityOtoe
River/StreamTr-n Fk Little Nemaha River
Coordinates40.72380, -96.14758

Physical Characteristics

Dam TypeEarth
NID Height38 ft
Dam Height37 ft
Dam Length840 ft
Year Completed1970 (56 years old)

Storage & Hydraulics

NID Storage860 acre-ft
Max Storage860 acre-ft
Normal Storage93 acre-ft
Surface Area20 acres
Drainage Area2 sq mi
Max Discharge2,690 cfs

Ownership & Safety

PurposeFlood Risk Reduction
OwnerNemaha Natural Resources District
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentPoor
Last Inspection10/12/2022
Emergency Action PlanNot Required

Identifiers

NID IDNE00903
Federal IDNE00903
More InfoState Dam Safety Program

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