Meng Dam, located in Sioux County, Nebraska, is a federal-owned structure designed by the USDA NRCS for fire protection, stock, or small fish pond purposes. Completed in 1936, this earth dam stands at a height of 19 feet and has a length of 1850 feet, with a storage capacity of 350 acre-feet. The dam is situated on TR-Long Branch Creek, serving as a crucial water resource for the surrounding area.

Managed by the Nebraska Department of Natural Resources, Meng Dam is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and compliance. Despite being classified as low hazard potential, the dam is regularly assessed for its condition, with the last inspection conducted in August 2019 rating it as fair. With a drainage area of 3.1 square miles and a surface area of 38.8 acres, Meng Dam plays a vital role in water management and conservation efforts in the region.

The dam's location, southwest of Ardmore, SD, makes it a key feature in the local landscape, providing essential water supply for fire protection and livestock. As a significant part of the state's infrastructure, Meng Dam exemplifies the importance of sustainable water resource management and climate resilience in the face of changing environmental conditions. Its history, design, and functionality make it a valuable asset for water resource and climate enthusiasts seeking to understand the intersection of infrastructure, ecology, and sustainability.