Frd No E-6, also known as Fall River Watershed Dam E-6, is a crucial structure located in Lapland, Greenwood County, Kansas. Owned by the local government and regulated by the Kansas Department of Agriculture, this earth dam stands at a height of 44 feet and serves the primary purpose of flood risk reduction along the East Branch Fall River-TR. Completed in 1965, it has a storage capacity of 990 acre-feet and covers a surface area of 12.47 acres, with a drainage area of 2.74 square miles.

Designed by the USDA NRCS, Frd No E-6 is classified as a buttress dam with an uncontrolled spillway width of 40 feet. Although its hazard potential is rated as low, the risk assessment indicates a moderate risk level. Despite not being inspected since June 1979, this structure continues to play a vital role in managing water resources in the region. With a moderate risk level and no specific risk management measures listed, it is essential for water resource and climate enthusiasts to monitor the condition and future maintenance of Frd No E-6 to ensure its continued effectiveness in flood risk reduction.