Mud Creek 4-D is a local government-owned earth dam located in Gage County, Nebraska, specifically in the city of Blue Springs. Designed by the USDA NRCS and regulated by the Nebraska Department of Natural Resources, this dam serves the primary purpose of flood risk reduction along the TR-Bloody Run river or stream. Completed in 1961, Mud Creek 4-D stands at 31 feet in structural height and has a maximum storage capacity of 380 acre-feet, with a normal storage capacity of 57 acre-feet over a surface area of 15 acres.

Despite its low hazard potential and satisfactory condition assessment as of April 2020, Mud Creek 4-D undergoes inspections every 5 years to ensure its continued effectiveness in mitigating flood risks in the area. With a drainage area of 1.3 square miles and the ability to discharge up to 664 cubic feet per second, this dam plays a crucial role in water resource management and climate resilience efforts in the region. Though currently not under the jurisdiction of the US Army Corps of Engineers, Mud Creek 4-D remains a key infrastructure piece for local flood control and emergency preparedness.