Gs Dd No C-109(Gs-55) is a local government-owned dam located in Jackson, Kansas, specifically in the city of ARRIINGTON. The dam, designed by the USDA NRCS Soil Conservation Service, serves primarily for flood risk reduction along the Elk Creek-TR stream. With a height of 25.2 feet and a length of 850 feet, the dam has a storage capacity of 350 acre-feet and a normal storage of 48 acre-feet, covering a surface area of 11 acres.

Despite its low hazard potential, the dam has a moderate risk rating of 3, indicating a level of risk that necessitates attention and monitoring. The dam features an uncontrolled spillway with a width of 40 feet and a maximum discharge capacity of 1317 cubic feet per second. While the dam has not been rated for its condition, it is not currently considered to be in a critical state. The dam does not have outlet gates or associated structures, and its inspection frequency is listed as 0, suggesting a need for more regular monitoring to ensure its continued safety and effectiveness in flood risk management.