Frd No 31, also known as Elk River WS Joint District No 47, is a local government-owned dam in Howard, Kansas that was completed in 1976 by the USDA NRCS. This earth dam stands at 36 feet in height and serves primarily for flood risk reduction on Rock Creek-TR. With a storage capacity of 489.26 acre-feet and a surface area of 8.65 acres, Frd No 31 plays a crucial role in managing water resources in the region.

Despite its low hazard potential and moderate risk assessment rating, Frd No 31 is not currently rated for its condition assessment. The dam's spillway type is uncontrolled, with a spillway width of 40 feet. The dam has no outlet gates and is not associated with any other structures. While the dam has not been inspected recently, it is under state regulation and jurisdiction, with permitting, inspection, and enforcement overseen by the Kansas Department of Agriculture. For water resource and climate enthusiasts, Frd No 31 offers a fascinating example of a locally owned dam contributing to flood risk reduction in Elk County, Kansas.