Lienemann Dam, located in Dallas County, Iowa, is a privately owned structure designed by the USDA NRCS and completed in 1980. The dam serves multiple purposes, including fire protection and water storage for stock or small fish ponds. With a height of 31 feet and a length of 235 feet, the dam has a storage capacity of 37 acre-feet and covers a surface area of 2.5 acres.

Managed by the Iowa DNR and regulated at the state level, Lienemann Dam is classified as having a low hazard potential and a moderate risk level. The dam is primarily made of earth with a soil foundation and is situated on the TR-Raccoon River. While the dam does not have a controlled spillway, it is equipped with safety measures to mitigate risks and ensure the safety of the surrounding area.

Despite its low hazard potential, Lienemann Dam is subject to state inspections, permitting, and enforcement to ensure its structural integrity and compliance with safety regulations. The dam poses a moderate risk, indicating the importance of ongoing monitoring and maintenance to prevent any potential issues. For water resource and climate enthusiasts, Lienemann Dam serves as a notable example of a privately owned structure contributing to water management and conservation efforts in Iowa.