Bear Creek Watershed Site 26, located in Quandahl, Iowa, is a crucial flood risk reduction structure designed by the USDA NRCS in 2011. This earth dam stands at a height of 28 feet and stretches 620 feet in length, with a storage capacity of 46 acre-feet. Situated along a tributary to North Bear Creek, this dam plays a vital role in managing water resources in Winneshiek County, Iowa. With a low hazard potential and a focus on flood risk reduction, this site is regulated by the Iowa DNR and undergoes regular state inspection, permitting, and enforcement.

The primary purpose of Bear Creek Watershed Site 26 is flood risk reduction, with additional benefits for other purposes. The dam and associated structures are owned by the local government and fall under the jurisdiction of the Iowa DNR. Despite not being rated for condition assessment, the structure has a maximum discharge capacity of 40 cubic feet per second and covers a drainage area of 0.33 square miles. With a focus on effective water management and environmental conservation, this site serves as a critical infrastructure for the community, ensuring the safety and resilience of the surrounding areas in times of potential flooding.