Dd No A-4 is a local government-owned Earth dam located in Moran, Kansas, along the Marmaton River. Completed in 2004 for the primary purpose of flood risk reduction, this dam stands at a height of 18.9 feet and has a storage capacity of 153.82 acre-feet. With a low hazard potential and a moderate risk assessment rating, Dd No A-4 plays a crucial role in mitigating potential flood risks in the area.

This structure, designed by AG Engineering Associates, spans a length of 1236 feet and has a spillway width of 80 feet. Despite being categorized as low risk, the dam has not undergone a formal condition assessment and is currently not rated. The last inspection conducted was in April 2007, indicating a need for updated assessment and potential risk management measures to ensure the continued safety and effectiveness of Dd No A-4 in flood control.

Given its strategic location and purpose, Dd No A-4 serves as a vital component in the flood risk reduction efforts along the Marmaton River in Allen County, Kansas. With its moderate risk assessment rating and lack of recent condition assessments, there is a need for ongoing monitoring and maintenance to uphold the dam's functionality and safeguard the surrounding community from potential flood events.