State Route 74 (SR 74) is a primary state highway in the U.S. state of Virginia. Known for most of its length as Kentucky Avenue, the state highway runs 2.42 miles (3.89 km) from U.S. Route 23 Business and US 58 Alternate Business in Norton east to US 58 Alternate near Norton. SR 74 is the old alignment of US 58 Alternate in Norton. The highway was designated in 1958 from its western terminus to Kentucky Avenue and extended east in 1988.