C-35 (Elk Creek No. 31) is a local government-owned earth dam located in Jackson, Kansas, designed by the USDA NRCS with a primary purpose of debris control on Banner Creek. Completed in 2002, this dam stands at a height of 32 feet and spans a length of 840 feet, providing a storage capacity of 209 acre-feet. Despite its low hazard potential, the dam is regulated by the Kansas Department of Agriculture and undergoes state inspections to ensure its structural integrity and functionality.

With a moderate risk assessment rating, C-35 is equipped with an uncontrolled spillway that has a width of 40 feet to manage excess water flow. The dam's normal storage capacity is at 31 acre-feet, serving a drainage area of 0.51 square miles and covering a surface area of 6 acres. While the dam does not have outlet gates, it has been deemed not rated in terms of its condition assessment, indicating a need for further evaluation to determine its overall stability and performance. Overall, C-35 plays a vital role in managing water resources and mitigating potential risks in the surrounding area, making it a key asset in the region's water infrastructure.