Bazal Dam, located in Marengo, Iowa, was completed in 1996 and serves multiple purposes including fire protection, stock, and small fish pond. Owned privately, this earth dam stands at a height of 25 feet and spans 425 feet in length, with a maximum storage capacity of 53 acre-feet. The dam is regulated by the Iowa Department of Natural Resources and is inspected, permitted, and enforced by state agencies to ensure its safety and compliance with regulations.

With a low hazard potential and a moderate risk assessment rating, Bazal Dam plays a crucial role in water resource management in the area. The dam is situated on the TR-Hog Run river/stream and covers a surface area of 5.5 acres, with a drainage area of 0.2 square miles. Despite its uncontrolled spillway type, the dam has not experienced any major incidents, making it a reliable structure for water storage and management in the region.

Water and climate enthusiasts will find Bazal Dam an intriguing site for its design and purpose. As a key element in the local water infrastructure, the dam provides essential services while maintaining a moderate risk level. Its location in Tama County, Iowa, adds to the significance of this structure in safeguarding the environment and supporting the community's water needs.