Dd No 1-23b, also known as Pawnee Watershed Dam 1-23b, is a local government-owned structure located in Pawnee, Kansas. This earth dam, designed by USDA NRCS, serves the primary purpose of flood risk reduction along the Cockelbur Creek. With a height of 26 feet and a storage capacity of 1611.26 acre-feet, this dam plays a crucial role in managing water flow and protecting the surrounding area from potential flooding events.

Constructed with a buttress core type and an uncontrolled spillway, Dd No 1-23b has a hazard potential categorized as low and a moderate risk assessment rating. While the dam's condition is currently not rated, it is state-regulated and undergoes regular inspections by the Kansas Department of Agriculture. Despite not having outlet gates, this dam contributes significantly to flood control efforts in the region, with a maximum discharge capacity of 4728 cubic feet per second and a surface area of 17003 square feet.

Overall, Dd No 1-23b stands as a vital infrastructure asset in Pawnee County, effectively reducing flood risk and safeguarding the local community against potential water-related emergencies. With its strategic location, sound design, and state oversight, this dam exemplifies the importance of proper water resource management and climate resilience in ensuring the safety and well-being of residents in the area.