Bellwood 3-A is a vital flood risk reduction structure located in Butler, Nebraska, designed by the USDA NRCS and regulated by the Nebraska Department of Natural Resources. Completed in 1965, this earth dam stands at a height of 34 feet, with a hydraulic height of 32 feet and a structural height of 38 feet. It boasts a storage capacity of 182.6 acre-feet, serving the primary purpose of flood risk reduction for the area.

With a low hazard potential and a satisfactory condition assessment as of May 2016, Bellwood 3-A is deemed to be in good operational order. The dam spans 462 feet in length and covers a surface area of 8.8 acres, providing critical protection to the surrounding region. Despite its age, the structure continues to be regularly inspected and maintained, ensuring its effectiveness in safeguarding the local community from potential flooding events.

Under the jurisdiction of the Nebraska DNR, Bellwood 3-A plays a crucial role in water resource management for the area, with a drainage area of 0.75 square miles and a maximum discharge capacity of 619 cubic feet per second. This essential infrastructure, overseen by local government authorities, exemplifies the collaborative efforts in place to mitigate flood risks and protect the environment in Butler, Nebraska.