Interstate 264 (I-264) is a partial loop around the city of Louisville, Kentucky, south of the Ohio River. An auxiliary route of I-64, it is signed as the Shawnee Expressway for its first eight miles (13 km) from its western terminus at I-64/U.S. Route 150 (US 150) to US 31W/US 60 and as the Watterson Expressway for the remainder of its length from US 31W/US 60 to its northeastern terminus at I-71. It is 22.93 miles (36.90 km) in length and runs an open circle around central Louisville. The highway begins four miles (6.4 km) west of Downtown Louisville at I-64 just east of the Sherman Minton Bridge, which links Southern Indiana with Kentucky as it crosses the Ohio River. The Interstate ends approximately six miles (9.7 km) northeast of Downtown Louisville, where it connects to I-71.