Upper Big Nemaha G-35

Upper Big Nemaha G-35 is an earth dam located in Gage County, Nebraska, built in 1973. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About Upper Big Nemaha G-35

Upper Big Nemaha G-35 is a dam in Gage, Nebraska. The dam is owned by Nemaha Natural Resources District (local government). It impounds the Tr-shaw Creek near Adams.

The dam stands 22 feet tall and stretches 675 feet across, creates a reservoir covering 11 acres, has a maximum storage capacity of 197 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1973, 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. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 05/19/2020.

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Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateNebraska
CountyGage
Nearest CityAdams
River/StreamTr-shaw Creek
Coordinates40.46630, -96.59890

Physical Characteristics

Dam TypeEarth
NID Height22 ft
Dam Height21 ft
Dam Length675 ft
Year Completed1973 (53 years old)

Storage & Hydraulics

NID Storage197 acre-ft
Max Storage197 acre-ft
Normal Storage46 acre-ft
Surface Area11 acres
Drainage Area0 sq mi
Max Discharge590 cfs

Ownership & Safety

PurposeOther
OwnerNemaha Natural Resources District
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection05/19/2020
Emergency Action PlanNot Required

Identifiers

NID IDNE01015
Federal IDNE01015
More InfoState Dam Safety Program

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