Dd No C-20 (Labette-Hackberry) is a flood risk reduction dam located in Labette, Kansas, with a primary purpose of flood risk reduction. The dam, with a height of 19 feet and a length of 954 feet, has a storage capacity of 97 acre-feet and covers a surface area of 4.74 acres. Its low hazard potential and moderate risk assessment make it an essential structure in managing potential flooding in the area.

Owned by the local government, Dd No C-20 is an Earth dam with a Buttress core type and an uncontrolled spillway type. Despite not being state-regulated, the dam serves a critical role in protecting the surrounding area from potential flooding events. With a risk management plan in place and a current condition assessment of "Not Rated," the dam is continuously monitored to ensure its effectiveness in flood risk reduction.

The location of Dd No C-20, at 22,31S, 19E, in Labette, Kansas, plays a crucial role in the overall flood risk reduction efforts in the area. With its design by STEWARD and a focus on maintaining its functionality for the community, this dam serves as a reminder of the importance of water resource management and climate resilience in safeguarding local communities from natural disasters.