Route 34 is a primary state highway in the U.S. state of Connecticut. Route 34 is 24.37 miles (39.22 km) long, and extends from Washington Avenue near I-84/US 6 in Newtown to the junction of I-95 and I-91 in New Haven. The highways connects the New Haven and Danbury areas via the Lower Naugatuck River Valley. The portion of the route between New Haven and Derby was an early toll road known as the Derby Turnpike.
Route 25 is a 28.59-mile (46.01 km), primary state highway connecting the city of Bridgeport and the town of Brookfield in the U.S. state of Connecticut. Route 25 is a six-lane freeway from Bridgeport to northern Trumbull and a two-lane surface road the rest of the way to Brookfield.
Route 69 is a primary north–south state highway in the U.S. state of Connecticut connecting the city of New Haven to the city of Bristol in the western part of Greater Hartford, passing through Greater Waterbury along the way. The route extends north of Bristol as a secondary route into the town of Burlington. Route 69 is 35.16 miles (56.58 km) in total length.
Route 83 is a 35.65-mile-long (57.37 km) north–south state highway in the Greater Hartford and Greater Springfield areas of the U.S. states of Connecticut and Massachusetts. It serves as the main north–south artery for the towns of Manchester, Vernon, Ellington, and Somers, and continues through East Longmeadow center into downtown Springfield. The route in Massachusetts is town-maintained, except for the ramps connecting to U.S. Route 5 parallel to Interstate 91.
Connecticut Route 14 is one of several secondary routes from eastern Connecticut into Rhode Island. It runs from the Willimantic section of the town of Windham to the Rhode Island state line in Sterling.
Route 57 is a secondary state highway in western Connecticut serving as the "Main Street" of and connecting the towns of Westport and Weston. The road continues north through Redding to end at US 7 just after crossing into Wilton, in the neighborhood of Georgetown.
Connecticut Route 10 is a state highway that runs between New Haven and the state line near Granby. It continues north of the state line as Massachusetts Route 10, which in turn continues directly to New Hampshire Route 10.
Route 121 is a state highway in southern Connecticut running from U.S. Route 1 in Milford to Route 34 near the Orange-Derby line.
Route 243 is a state highway in Connecticut running for 6.70 miles (10.78 km) from Route 115 at the Ansonia-Derby town line to Route 63 in New Haven. It serves the Westville neighborhood of New Haven and the southern portions of the towns of Woodbridge and Ansonia. The road continues across the Naugatuck River as State Road 853 leading to Route 8.
Route 37 is a north–south state highway in Connecticut running for 18.66 miles (30.03 km) from Route 39 in Danbury, through New Fairfield, to U.S. Route 7 in New Milford. The northernmost section between the town centers of Sherman and New Milford was once part of an early toll road known as the New Milford and Sherman Turnpike chartered in 1818.
Route 81 is a state highway in Connecticut from Clinton center through Killingworth center to the village of Higganum in the town of Haddam.
Route 87 is a Connecticut state highway running from Franklin to Andover, generally in a southeast–northwest direction. The route is part of the road connecting the towns of Norwich, Lebanon, Columbia, and Andover. Route 87 is a two-lane rural collector road for its entire length.
Route 71 is a north–south state highway in Connecticut, running from Wallingford to West Hartford. It is the main north–south road of Meriden, Berlin and New Britain.
Route 203 is a state highway in eastern Connecticut, running entirely within the town of Windham.
Route 151 is a Connecticut state highway in the Connecticut River valley running from East Haddam via Moodus to the village of Cobalt in East Hampton.
Route 120 is a state highway in Connecticut, running entirely in the town of Southington. It serves as a more direct connection between the town center of Southington and the city of Meriden.
Route 111 is a state highway in southwestern Connecticut, United States, running from the Merritt Parkway (Route 15) in Trumbull to Route 34 in Monroe. The junction with the Merritt Parkway is currently the only single-point urban interchange (SPUI) in the entire state.
Route 114 is a Connecticut state highway in the western suburbs of New Haven, running from Orange to Woodbridge. Other than at its junction with Route 63, it is signed north and south.
Route 177 is a state highway in central Connecticut, running from Plainville to Canton.
Route 197 is a 14.17-mile-long (22.80 km) state highway in northeastern Connecticut and southern Massachusetts, running from Union, Connecticut, to Dudley, Massachusetts. The Connecticut section is signed as an east–west route, while the Massachusetts section is signed north–south.
US 1 in Orange 
Route 34 in Orange 
