Located in Grand River, Iowa, the Smith (Bill) Dam is a private-owned structure designed by USDA NRCS for grade stabilization along the Trib to Loefler Creek. Completed in 2013, this earth dam stands at a height of 28 feet and spans 478 feet in length, with a storage capacity of 65 acre-feet. Serving multiple purposes including grade stabilization, recreation, and water supply, the dam plays a crucial role in managing water resources in the area.

Managed by the Iowa DNR, the Smith (Bill) Dam is regulated, permitted, inspected, and enforced by state authorities to ensure its safety and compliance with regulations. With a low hazard potential and a condition assessment of "Not Rated," the dam provides essential flood control and water storage benefits for the surrounding community. Though lacking certain emergency preparedness measures, the dam remains a vital infrastructure for water resource management in Union County.

As a key component of the Rock Island District, the Smith (Bill) Dam contributes to the overall water management efforts in the region. With its strategic location and multiple functions, including grade stabilization and recreational opportunities, the dam stands as a testament to effective water resource management and collaboration between private owners and state agencies.