Assam is a private dam located in Canton, South Dakota, along the Big Sioux River. Built in 1968, this earth dam stands at a height of 30 feet and has a storage capacity of 56 acre-feet, with a normal storage capacity of 41 acre-feet. The dam serves as a vital water resource for the surrounding area, with a low hazard potential and a condition assessment of "Not Rated".

Managed by the Natural Resources Conservation Service, Assam is regulated by the South Dakota Department of Environment and Natural Resources, with state permitting, inspection, and enforcement in place. While the dam has not been rated for condition assessment, it meets all regulatory guidelines and is regularly monitored for safety. With a maximum discharge of 300 cubic feet per second, Assam plays a crucial role in managing water flow and storage in the region.

The dam's location in Minnehaha County makes it a key asset for water resource management in the area. Despite its low hazard potential, Assam remains an important structure for ensuring water security and climate resilience in the region, serving as a testament to the importance of sustainable water infrastructure in mitigating the impacts of climate change.