Upper Little Nemaha 31 East is a vital flood risk reduction structure located in Palmyra, Nebraska, along the TR-Little Nemaha River. Completed in 2002, this earth dam stands at a height of 34 feet and has a hydraulic height of 33 feet, providing crucial protection to the surrounding area. With a storage capacity of 338 acre-feet and a drainage area of 1.4 square miles, this dam plays a significant role in managing water levels and mitigating flood risks in the region.

Managed by the Nebraska Department of Natural Resources, Upper Little Nemaha 31 East has a low hazard potential and is assessed to be in satisfactory condition as of the last inspection in May 2016. The dam has a normal storage capacity of 65 acre-feet and can discharge up to 1094 cubic feet per second in times of high water flow. Its primary purpose is flood risk reduction, and it serves as a critical infrastructure for protecting the local community from potential inundation events. With a solid stone core and soil foundation, this structure showcases the importance of effective water resource management in maintaining the resilience of our climate-vulnerable landscapes.

Situated within Congressional District 01 of Nebraska, Upper Little Nemaha 31 East exemplifies the collaborative efforts between local government agencies and state regulators to ensure the safety and integrity of dam structures. With state permitting, inspection, and enforcement mechanisms in place, this dam stands as a testament to proactive risk management practices in the face of changing environmental conditions. As water resource and climate enthusiasts, understanding the significance of infrastructure like Upper Little Nemaha 31 East is crucial in fostering sustainable water management strategies for a more resilient future.