Located in Gage, Nebraska, the Upper Big Nemaha G-37 dam is a vital structure designed by the USDA NRCS to manage water resources in the area. Completed in 1974, this Earth dam stands at a height of 23 feet and serves multiple purposes including flood risk reduction. It has a normal storage capacity of 13 acre-feet and a drainage area of 0.2 square miles, making it an essential infrastructure for water management in the region.

Despite its importance, the Upper Big Nemaha G-37 dam is currently assessed to be in poor condition, with a low hazard potential. The dam has a length of 600 feet and a maximum discharge capacity of 612 cubic feet per second. While it is regulated, permitted, and inspected by the Nebraska Department of Natural Resources, there are concerns about its structural integrity and overall maintenance. As a key component of the local government's water resource management strategy, efforts to improve the dam's condition and ensure its long-term functionality are crucial for the community's safety and well-being.