Sherman Dam, located in Sioux City, Iowa, was completed in 1962 by the USDA NRCS and serves primarily for fire protection, stock, and as a small fish pond. This private earth dam stands at 37 feet tall and spans 452 feet in length, with a storage capacity of 78 acre-feet and a surface area of 5.6 acres. The dam is regulated by the Iowa DNR and is subject to state permitting, inspection, and enforcement.

The dam, situated on the TR-West Branch Perry Creek, has a low hazard potential and is classified as being in moderate risk, with a condition assessment of "Not Rated." Despite being built over five decades ago, the dam has not been modified since its completion. Notably, there are no outlet gates or locks associated with the structure, and the spillway is uncontrolled. The dam is not owned or funded by any federal agency, but the Natural Resources Conservation Service was responsible for its design.

Overall, Sherman Dam serves a vital purpose in the local community, providing essential water resources for fire protection and agricultural use. As a privately owned structure, it is subject to state regulations and inspections to ensure its continued safety and effectiveness. Water resource and climate enthusiasts can appreciate the dam's role in managing water flow and storage in the area, contributing to environmental conservation and sustainable water management practices.