Interstate 264 (Kentucky)

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/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 eastern terminus at I-71. It is 22.93 miles (36.90 km) in length and runs an open circle around central Louisville. It is the only auxiliary route of I-64 outside of Virginia.

I-264 is Louisville's inner beltway (in conjunction with I-64 and I-71), and the later constructed I-265, the Gene Snyder Freeway, is Louisville's outer beltway. I-264 is currently used as the primary detour route when I-64 is closed through Downtown Louisville. However, in late 2016 with the completion of the Lewis and Clark Bridge, the formerly separate segments of I-265 in Kentucky and Indiana have been connected to provide another detour route.

In discussions about the city, I-264 is often used as a rough line dividing the older areas of Louisville from its suburbs.