Gs Dd No 5-31b (Vermillion Creek) is a local government-owned earth dam situated in Frankfort, Kansas, along the Robidoux Creek. Designed by L. Robins, this dam stands at a height of 28.5 feet and has a NID storage capacity of 150.12 acre-feet, with a normal storage of 34.59 acre-feet. With a spillway width of 50 feet and a maximum discharge of 830 cubic feet per second, the dam has a low hazard potential and is currently rated as not assessed for condition.

Despite its relatively low hazard potential, this dam poses a moderate risk according to the data, with no emergency action plan prepared or updated. The surrounding area has a drainage area of 0.51 square miles and a surface area of 6.15 acres, highlighting the importance of monitoring and managing the water resources in this region. Located within the Kansas City District, this dam serves a vital purpose in controlling water flow and storage along the Robidoux Creek, making it a crucial structure for water resource and climate enthusiasts to be aware of.

With no state jurisdiction or permitting required for this dam, it is essential for local authorities to ensure regular inspections and maintenance to mitigate any potential risks or hazards. As a part of the infrastructure in Marshall County, Kansas, Gs Dd No 5-31b (Vermillion Creek) plays a significant role in water resource management in the area. It is important for stakeholders and enthusiasts to stay informed about the condition and management of this dam to ensure the safety and sustainability of water resources in the region.