Pennsylvania Route 66

Pennsylvania Route 66
Pennsylvania Route 66
	Major highways in Western Pennsylvania with PA 66 in red and alternate routes in blue
Route information
	Maintained by PennDOT and PTC
Length	139.7 mi (224.8 km)
Existed	1927–present
Major junctions
South end	I-70 / I-76 / Penna Turnpike / US 119 in New Stanton;
	US 30 near Greensburg; US 22 near Delmont; PA 56 in Apollo; US 422 in Kittanning; PA 28 in New Bethlehem; I-80 near Clarion;
North end	US 6 in Kane
Location
Country	United States
State	Pennsylvania
Counties	Westmoreland, Armstrong, Clarion, Forest, Elk, McKean
Highway system
	Pennsylvania State Route System; Interstate; US; State; Scenic; Legislative;

Pennsylvania Route 66 (PA 66) is a 139.7-mile-long (224.8 km) state highway in Western Pennsylvania. Its southern terminus is at U.S. Route 119 (US 119) just east of Interstate 70 (I-70) near New Stanton. Its northern terminus is at US 6 in Kane.

The southernmost 13.7 miles (22.0 km) of the route is a controlled-access toll road named the Amos K. Hutchinson Bypass and is signed as PA Turnpike 66, a part of the Pennsylvania Turnpike System serving as a bypass of Greensburg. The Bypass runs between US 119 and US 22. This portion is also part of Corridor M of the Appalachian Development Highway System.