Dd No 102, also known as Allen Creek Watershed Dam No 102, is a local government-owned earth dam located in Lyon County, Kansas. Designed by USDA NRCS and completed in 2003, this dam serves the primary purpose of flood risk reduction along Troublesome Creek-TR. With a height of 24 feet and a length of 1380 feet, Dd No 102 has a storage capacity of 211.6 acre-feet and a normal storage of 61 acre-feet.

Despite being classified as having a low hazard potential and not yet assessed for condition, Dd No 102 presents a moderate risk level of 3. With an uncontrolled spillway width of 81 feet and a maximum discharge of 518 cfs, this dam plays a crucial role in managing water flow in the area. While it has not been inspected since June 2004, the dam's emergency action plan status, risk management measures, and inundation maps preparedness remain unknown.

Overall, Dd No 102 stands as a vital infrastructure in the Allen Creek Watershed, providing flood risk reduction services to the surrounding community in Americus, Kansas. Water resource and climate enthusiasts can appreciate the role this dam plays in managing water flow and mitigating potential flood hazards in the region.