Upper Big Nemaha G-18

Low HazardSatisfactory ConditionEmergency Action Plan: Not Required

Location

StateNebraska
CountyLancaster
Nearest CityFIRTH
River/StreamTR-MID BR BIG NEMAHA RIVER
Coordinates40.52361, -96.63266

Physical Characteristics

Dam TypeEarth
NID Height25 ft
Dam Height25 ft
Dam Length750 ft
Year Completed1977 (49 years old)

Storage & Hydraulics

NID Storage189 acre-ft
Max Storage189 acre-ft
Normal Storage19 acre-ft
Surface Area7 acres
Drainage Area0 sq mi
Max Discharge339 cfs

Ownership & Safety

PurposeOther
OwnerNemaha Natural Resources District
Owner TypeLocal Government
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection04/12/2023
Emergency Action PlanNot Required

Identifiers

NID IDNE01586
Federal IDNE01586
More InfoState Dam Safety Program

Nearby Dams

Upper Big Nemaha 12-a 0.3 mi Low Upper Big Nemaha 12-b 0.5 mi Low Upper Big Nemaha G-33 1.8 mi Low Upper Big Nemaha 11-a 1.8 mi High Upper Big Nemaha 13-c 2.4 mi Low Golden Pond Dam 2.5 mi Low Helmink Dam 2.6 mi Significant Upper Big Nemaha 13-a 2.7 mi Low Gana Dam 2.8 mi Low Upper Big Nemaha L-4 2.9 mi Significant