Mau Dam, located in Thayer, Nebraska, is a privately owned earth dam with a primary purpose of flood risk reduction. Built in 1960, this structure stands at a height of 13.7 meters and has a storage capacity of 86.9 million cubic meters. Situated on the TR-SPRING BRANCH river or stream, Mau Dam plays a crucial role in managing water resources in the area.

Operated under the oversight of the Nebraska Department of Natural Resources, Mau Dam is equipped with state-regulated inspection, permitting, and enforcement measures to ensure its structural integrity and safety. With a low hazard potential and a condition assessment of "Not Rated", this dam serves as a key infrastructure for flood control in the region, protecting surrounding communities from potential water-related risks.

Despite its modest size with a surface area of 8.1 hectares, Mau Dam plays a vital role in the local water management system. As climate change continues to impact precipitation patterns and water resources, the importance of structures like Mau Dam in mitigating flood risks and ensuring water security becomes increasingly evident.