Upper Big Nemaha G-24 is a crucial water management structure located in Gage County, Nebraska, along the TR-MID BR Big Nemaha River. Built in 1982 by the USDA NRCS, this earth dam stands at a height of 30 feet and spans 668 feet in length. With a storage capacity of 224 acre-feet and a drainage area of 0.6 square miles, it plays a vital role in flood risk reduction and other purposes in the region.

Managed by the local government and regulated by the Nebraska Department of Natural Resources, Upper Big Nemaha G-24 has a significant hazard potential but is currently in satisfactory condition as of the last inspection in April 2018. The dam is equipped with a spillway and has a maximum discharge capacity of 192 cubic feet per second. Its location in Adams and association with the Omaha District highlight its importance in water resource management and climate resilience efforts in the area.

For water resource and climate enthusiasts, Upper Big Nemaha G-24 serves as a focal point for understanding the intersection of infrastructure, environmental protection, and community safety. As a key component of the local water management system, this earth dam embodies the collaboration between government agencies, designers, and stakeholders in ensuring the resilience of the region against potential hazards. With its history of construction and ongoing regulatory oversight, Upper Big Nemaha G-24 stands as a testament to the proactive approach taken in safeguarding water resources in Nebraska.