The U.S. Army Corps of Engineers, St. Louis District in partnership with the City of De Soto, Jefferson County, the Missouri Department of Natural Resources, the U.S. Geological Survey, Citizens’ Committee for Flood Relief, Missouri State Emergency Management Agency, East-West Gateway, and FEMA (Region 7) will host a public workshop on the Upper Joachim Floodplain Management Plan on Wednesday, Feb. 28, at the De Soto Community Center, 400 Boyd Street, De Soto, Mo. 63020, from 6:00 to 8:00 p.m.