Dd No 2-3b, also known as Pawnee Watershed Dam No 2-3b, is a local government-owned structure located in Hodgeman County, Kansas. Built in 1972 by the USDA NRCS, this earth dam stands at a height of 25 feet and serves the primary purpose of flood risk reduction along the Sand Creek-TR river or stream. With a normal storage capacity of 65 acre-feet and a maximum storage of 758.94 acre-feet, Dd No 2-3b covers a surface area of 19.5 acres and has a drainage area of 3.37 square miles.

Despite its low hazard potential, Dd No 2-3b is regulated by the Kansas Department of Agriculture and undergoes regular state inspections, permitting, and enforcement. The dam features an uncontrolled spillway with a width of 100 feet and has not been rated for condition assessment. While it has not been modified in recent years, the structure poses a moderate risk (3) according to the available data. Emergency action plans and inundation maps are currently not prepared or updated, emphasizing the need for proactive risk management measures and guidelines to ensure the safety and resilience of this vital water resource infrastructure.