The plan called for a greater emphasis on the Des Plaines riverfront, including the construction of a slip for riverboat gambling, which had been legalized by the state earlier that year. The city began a downtown revitalization effort called Joliet City Center in 1990. It has 1,138 slot machines, 204 hotel rooms, and 4 restaurants. Harrah's Joliet is a riverboat casino in Joliet, Illinois, outside Chicago, operated by Caesars Entertainment.