2014. It was eventually completed in 2018 but only opened one lane in each direction. Cannon Ball Route / Illinois Route 110 (1917−1941; 2010) The Cannon Ball Trail Association, which was based in Leon, Iowa, marked the Missouri and Iowa portions of the route in 1912. The Chicago Auto Club marked the Illinois segment of the highway in 1913. By 1915, the route was considered "one of the best-marked highways between Quincy... and Chicago", and an extension from Quincy to the St. Louis – Kansas City highway at Monroe City was posted. In 1917 the Illinois State Highway Department, a precursor to the modern-day Illinois Department of Transportation, produced a Map of Marked Routes for the new automotive owner. The route from Hannibal, MO to Chicago, IL roughly paralleling the Chicago, Burlington and Quincy Railroad, was marked as the Cannon Ball Route. In a joint resolution between the Illinois House and Senate in late May 2010, an expressway project connecting Chicago-to-Kansas City will be named Illinois Route 110. The path, 532 miles in total, follows parts of the existing Illinois Route 336, Interstate 88, Interstate 172, Interstate 72, Interstate 74, U.S. Route 136, U.S. Route 67, and connect the cities of Quincy, Macomb, Galesburg, a number of communities of the Chicago metropolitan area, including Chicago itself on Interstate 290. River bridges Since the 1970s, new Mississippi River highway bridges providing western access (Missouri, Iowa) to this region have been built: Mark Twain Memorial Bridge at Hannibal, Bayview Bridge at Quincy, Keokuk-Hamilton Bridge at Keokuk-Hamilton, and the Great River Bridge at Burlington. The 1928 Champ Clark Bridge at Louisiana, MO carrying U.S. Highway 54 was in poor condition and replaced by a new Champ Clark Bridge in 2019. The railroads, serving the region, Kansas City Southern Railway, BNSF Railway, and Norfolk Southern Railway have replaced, performed major upgrades, or demolished their Mississippi and Illinois river bridges (Keithsburg Rail Bridge). Some of these railroad bridges require further upgrades, based on the increasing transcontinental rail traffic. However, the Illinois River highway bridges providing eastern access to central Illinois, especially at Hardin, Florence, Meredosia, Beardstown, Havana, Lacon, and Henry are over 50 years old. While Illinois DOT has performed major maintenance on these structures, they are not currently funded for replacement. The first bridge to be replaced, as funds become available, is the Florence drawbridge on Illinois 100/106, formerly US 36 and 54. A