Dd No 31-7, located in PADONIA, Kansas, is a flood risk reduction dam constructed in 1980 by SPEAKER & KING. With a dam height of 19 feet and a length of 1000 feet, this Earth type structure serves the primary purpose of flood risk reduction along the Spring Creek-TR. The dam has a normal storage capacity of 25 acre-feet and a maximum storage capacity of 176 acre-feet, covering a surface area of 7.5 acres and draining a 0.39 square mile watershed.

Despite its low hazard potential and moderate risk assessment, Dd No 31-7 has not been rated for its condition. The dam's spillway, with a width of 106 feet, is uncontrolled and there are no outlet gates. The structure has not been inspected recently, with an inspection frequency of 0. While the dam currently does not meet USACE guidelines, it continues to play a vital role in mitigating flood risks in the area. Overall, Dd No 31-7 serves as an important asset for the local government in managing water resources and climate-related challenges in Brown County, Kansas.