A total of five bridges accessible by automobiles connect Iowa with Illinois in the Quad Cities across the Mississippi River. The Fred Schwengel Memorial Bridge carries Interstate 80 and connects Le Claire, Iowa, with Rapids City, Illinois. Continuing downstream, the I-74 Bridge connects Bettendorf, Iowa, with Moline, Illinois, and is the busiest bridge with an average of 70,400 cars a day. The Government Bridge connects Downtown Davenport with the Rock Island Arsenal. Three bridges connect Davenport with Rock Island, Illinois; The Rock Island Centennial Bridge, The Crescent Rail Bridge, and the furthest downstream bridge, the Sergeant John F. Baker, Jr. Bridge which carries I-280.