Harmoney Dam

Harmoney Dam is an earth dam located in Buffalo County, Nebraska, built in 1960. It carries a Low hazard potential classification.

About Harmoney Dam

The primary purpose of Harmoney Dam 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 Calvin & Coleen Harmoney (private). It impounds the Tr-wood River.

The dam stands 16 feet tall and stretches 281 feet across, creates a reservoir covering 6 acres, has a maximum storage capacity of 62 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1960, the structure is well into its service life at over 50 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. The most recent inspection on record was 03/25/2020.

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Low HazardNot Rated ConditionEmergency Action Plan: Not Required

Location

StateNebraska
CountyBuffalo
Nearest CityNone
River/StreamTr-wood River
Coordinates40.81459, -99.27905

Physical Characteristics

Dam TypeEarth
NID Height16 ft
Dam Height16 ft
Dam Length281 ft
Year Completed1960 (66 years old)

Storage & Hydraulics

NID Storage62 acre-ft
Max Storage62 acre-ft
Normal Storage20 acre-ft
Surface Area6 acres
Drainage Area0 sq mi

Ownership & Safety

PurposeFlood Risk Reduction
OwnerCalvin & Coleen Harmoney
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentNot Rated
Last Inspection03/25/2020
Emergency Action PlanNot Required

Identifiers

NID IDNE04625
Federal IDNE04625
More InfoState Dam Safety Program

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