Dd No 3-1b, also known as Pawnee Watershed Dam 3-1b, is a local government-owned structure located in Ford, Kansas, with the primary purpose of flood risk reduction. Built in 1974 by the USDA NRCS, this earth dam stands at a height of 42 feet and has a hydraulic height of 41 feet, serving to protect the surrounding area from potential flooding events. With a normal storage capacity of 70 acre-feet and a maximum discharge of 5,275 cubic feet per second, Dd No 3-1b plays a crucial role in managing water resources in the region.

Situated on Duck Creek-TR, this dam covers a surface area of 13.5 acres and has a drainage area of 7.14 square miles. Its uncontrolled spillway, 200 feet wide, helps regulate water flow during times of excess precipitation, ensuring the safety of downstream communities. Inspected every five years, Dd No 3-1b has been deemed to have a significant hazard potential but maintains a satisfactory condition assessment. With a risk assessment rating of moderate, efforts are in place to manage and mitigate any potential risks associated with the dam for the benefit of the local environment and community.

As part of the overall water resource management strategy in Kansas, Dd No 3-1b serves as a critical infrastructure for flood control and risk reduction. With the support of the Kansas Department of Agriculture and the USDA NRCS, this dam continues to play a vital role in safeguarding the area against flooding events. As climate change impacts intensify, structures like Dd No 3-1b become increasingly important in ensuring the resilience and sustainability of water resources in the region, highlighting the significance of ongoing monitoring, inspection, and maintenance efforts to protect both the dam and the communities it serves.