Pennsylvania Route 99 (PA 99), officially SR 699, is a 21-mile-long (34 km) state highway located in western Pennsylvania. The northern terminus is at U.S. Route 19 near Erie. The southern terminus is at US 6 and US 19 in Cambridge Springs. Along its routing, PA 99 is known as Interchange Road, Edinboro Road, Main Street, Forest Street, Erie Street, Meadville Street, and McClellan Street. It previously shared an official SR designation with Interstate 99 but was changed in 2008 to be officially SR 0699.