Dd No 29 is a flood risk reduction dam located in Marysville, Kansas on Horseshoe Creek-TR. Built in 2010 by COHORST ENGINEERING, this earth dam stands at a height of 24.6 feet with a structural height of 30 feet and a length of 592 feet. With a normal storage capacity of 16.1 acre-feet and a maximum discharge of 282 cubic feet per second, it serves the primary purpose of flood risk reduction in the area.

Despite being categorized as having a low hazard potential, Dd No 29 plays a crucial role in mitigating flood risks in Marshall County, Kansas. The dam has a maximum storage capacity of 58.5 acre-feet and covers a surface area of 3.5 acres, serving as a key infrastructure for managing water resources in the region. With a risk assessment rating of moderate (3), ongoing risk management measures are in place to ensure the safety and effectiveness of the dam.

Owned by the local government, Dd No 29 is not regulated by the state but is part of the Omaha District under the US Army Corps of Engineers. With no associated structures and no inspection or enforcement by the state, the dam continues to provide essential flood control benefits to the community. Water resource and climate enthusiasts will appreciate the engineering marvel of Dd No 29 and its vital role in safeguarding the area from potential flooding events.