Upper Big Nemaha 12-a

Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateNebraska
CountyLancaster
Nearest CityFIRTH
River/StreamTR-MID BR BIG NEMAHA RIVER
Coordinates40.52720, -96.62894

Physical Characteristics

Dam TypeEarth
NID Height34 ft
Dam Height30 ft
Dam Length625 ft
Year Completed1986 (40 years old)

Storage & Hydraulics

NID Storage149 acre-ft
Max Storage149 acre-ft
Normal Storage29 acre-ft
Surface Area7 acres
Drainage Area0 sq mi
Max Discharge156 cfs

Ownership & Safety

PurposeFlood Risk Reduction
OwnerNemaha Natural Resources District
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection05/31/2022
Emergency Action PlanNot Required

Identifiers

NID IDNE02262
Federal IDNE02262
More InfoState Dam Safety Program

Nearby Dams

Upper Big Nemaha G-18 0.3 mi Low Upper Big Nemaha 12-b 0.5 mi Low Upper Big Nemaha 11-a 1.6 mi High Upper Big Nemaha G-33 2.1 mi Low Helmink Dam 2.3 mi Significant Golden Pond Dam 2.3 mi Low Upper Big Nemaha 13-c 2.5 mi Low Upper Big Nemaha L-4 2.6 mi Significant Upper Big Nemaha 13-a 2.7 mi Low Gana Dam 2.9 mi Low