Connecticut Route 66

Route 66
Map of central Connecticut with Route 66 highlighted in red
Route information
Maintained by ConnDOT
Length:	38.38 mi (61.77 km)
Existed:	1968 – present
Major junctions
West end:	I-691 in Meriden
	I-91 in Meriden Route 2 in Marlborough US 6 in Columbia
East end:	US 6 in Windham
Location
Counties:	New Haven, Middlesex, Hartford, Tolland, Windham
Highway system
Routes in Connecticut Interstate U.S. State SSR SR ← Route 64 Route 67 →

Route 66 is a Connecticut state highway running from Meriden to Windham, serving as an alternate east–west route to US 6 through east-central Connecticut.

Route 66 officially begins at I-91 in Meriden as the extension of I-691, which officially ends at its interchange with I-91. This freeway portion runs for about 1.5 miles (2.4 km) into the town of Middlefield, where it becomes a four lane surface road. In Middlefield, it has junctions with the northern end of Route 147, and the southern end of Route 217. It then enters Middletown and becomes Washington Street, where it has junctions with the northern end of Route 157 and the southern end of Route 3 before passing by Wesleyan University and entering the downtown area. Route 66 then turns onto Main Street, as Washington Street becomes SR 545, providing southbound access to the Route 9 freeway. At the north end of Main Street, it intersects Route 17. Southbound Route 17 provides access to both directions of Route 9, while northbound Route 17 joins Route 66 to cross the Connecticut River on the Arrigoni Bridge into Portland. Immediately east of the bridge, it meets the southern end of Route 17A, which leads to Portland center. After Route 17 leaves to the north, Route 66 narrows to 2 lanes and follows the east shore of the Connecticut River into East Hampton. It passes the northern end of Route 151, and bends northeast as it intersects the western end of Route 16. In the center of town, it meets the northern end of Route 196, then crosses into Marlborough. Here, it has a junction with the Route 2 freeway at Exit 13. It then passes into Hebron, Connecticut, where it has junctions with Routes 85 and 316 in the center of town. It then enters Columbia, intersecting Route 87 before reaching a junction with US 6 at the western end of the Willimantic bypass. Route 66 turns east as a collector of local traffic headed for Willimantic. In Willimantic, it has a 0.74 mile concurrency with Route 32, and intersects the southern end of Route 195, and the western end of Route 14. It then turns north-northeastward and continues to US 6 at the east end of the Willimantic bypass, where Route 66 ends and US 6 assumes the roadway.