Big Sioux River Low-Head Dam Reconstruction

Lloyd Construction was selected to spearhead the final stages of the Downtown River Greenway project—a truly once‑in‑a‑lifetime opportunity to restore and modernize the century‑old low‑head dam on the Big Sioux River. This critical structure, originally built for industrial use, now plays an essential role in maintaining river levels through Sioux Falls’ downtown reach. Replacing this deteriorating dam not only stabilizes the waterway, but also enhances the aesthetic and ecological integrity of the Greenway

Chosen for their proven expertise, Lloyd Construction has been trusted to manage the complex river work with precision.  Throughout this process, Lloyd’s team has been praised for thoughtful execution, working seamlessly in challenging conditions to ensure the dam’s integrity—and the river’s future health.