Upper Big Nemaha G-34 is a local government-owned earth dam located in Adams, Nebraska, along the TR-SHAW CREEK. Built in 1986 by the USDA NRCS, this dam stands at a height of 18 feet and has a normal storage capacity of 11 acre-feet. With a low hazard potential and a satisfactory condition assessment, Upper Big Nemaha G-34 serves primarily for flood risk reduction purposes and covers a drainage area of 0.3 square miles.

Managed by the Nebraska Department of Natural Resources, Upper Big Nemaha G-34 is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and functionality. The dam's structure consists of stone core and soil foundation, with a hydraulic height of 16 feet and a structural height of 24 feet. In the event of emergencies, the dam has an inspection frequency of 5 years and is equipped with emergency action plans to meet guidelines and ensure public safety.

Located in Gage County, Upper Big Nemaha G-34 is part of the Natural Resources Conservation Service's efforts to mitigate flood risks in the area. With its modest size and storage capacity, this earth dam plays a crucial role in managing water resources and protecting the local community from potential inundation. The dam's satisfactory condition and low hazard potential highlight its importance in maintaining water security and climate resilience in the region.