The Central Ohio Section of the American Society of Civil Engineers was founded in Columbus, Ohio, in 1921. Most of the members of the section either live or work in the greater Columbus area. However, the geographic limits of the section extend a little way to the north and west from Columbus, and include all of Southeast Ohio. This includes the cities of Marion, Delaware, Bellefontaine, Marysville, Washington Court House, Chillicothe, Portsmouth, Lancaster, Athens, Marietta, Newark, Zanesville, Cambridge, and St. Clairsville.