Maas Detention, located in Faribault, Minnesota, was designed by the USDA NRCS and is owned by a private entity. This earth dam was completed in 1993 and serves the primary purpose of flood risk reduction along the Mud Creek-TR. With a dam height of 30 feet and a length of 260 feet, Maas Detention has a storage capacity of 21.1 acre-feet and a drainage area of 0.6 square miles. Despite its low hazard potential, the dam has a moderate risk assessment rating of 3, indicating the need for ongoing monitoring and maintenance.

Managed by the MNDNR EWR, Maas Detention is equipped with uncontrolled spillways and outlet gates. The dam's overall condition was last assessed in July 2017 and deemed satisfactory. While the structure has not been modified in recent years, regular inspections are conducted every 8 years to ensure its continued safety and effectiveness. The risk management measures and emergency action plan for the dam are currently unspecified, highlighting the importance of proactive planning and coordination in the face of potential climate-related challenges.

As part of the Rock Island District, Maas Detention plays a crucial role in protecting the surrounding area from flooding events. Its strategic location in Rice County, Minnesota, underscores the significance of water resource management in mitigating climate-related risks. With its effective flood risk reduction capabilities and commitment to regulatory compliance, Maas Detention stands as a testament to the importance of sustainable water infrastructure in adapting to a changing climate and safeguarding communities against natural disasters.