Wagner Dam, located in Louisa County, Iowa, is a privately owned structure designed by NRCS and completed in 1998. This earth dam, with a height of 25 feet and a length of 458 feet, serves primarily for fire protection and as a small fish pond. The dam has a storage capacity of 56 acre-feet, with a normal storage level of 33 acre-feet and a surface area of 5.1 acres. Despite its low hazard potential and moderate risk assessment, the dam is not currently rated for its condition.

Operated by the private owner, Wagner Dam is regulated by the Iowa Department of Natural Resources, with state jurisdiction, permitting, inspection, and enforcement in place to ensure its safety and compliance with regulations. The dam is situated on TR-Short Creek and serves as a vital resource for water storage and management in the area, contributing to the overall ecosystem health. With its uncontrolled spillway type and low hazard potential, Wagner Dam plays a crucial role in providing fire protection and supporting local fish populations.