The Boston Post Road was a system of mail-delivery routes between New York City and Boston, Massachusetts that evolved into one of the first major highways in the United States.
Connecticut Route 80 is a 25.9 mile highway that runs through south-central Connecticut. The west end is at CT 17 in Quinnipiac Meadows neighborhood of New Haven, and the east end is at CT 154 in Deep River. Route 80 runs within 5 miles of many town squares- including Downtown New Haven.
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.
U.S. Route 6 (US 6) within the state of Connecticut runs for 116.33 miles (187.21 km) from the New York state line near Danbury to the Rhode Island state line in Killingly. West of Hartford, the route either closely parallels or runs along Interstate 84 (I-84), which has largely supplanted US 6 as a through route in western Connecticut. East of Hartford, US 6 serves as a primary route for travel between Hartford and Providence.
Route 169 is a 47.36-mile-long (76.22 km) state highway in the U.S. states of Connecticut and Massachusetts. It begins in the city of Norwich, Connecticut, and runs 38 miles (61 km) through Northeastern Connecticut, continuing across the state line into Southbridge, Massachusetts. The route ends in Charlton after another nine miles (14 km). A portion of the route in the town center of Pomfret is on the National Register of Historic Places as Pomfret Street Historic District, and 32.10 miles (51.66 km) of the road is designated as the Connecticut State Route 169 National Scenic Byway.
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 64 is a Connecticut state highway connecting the towns of Woodbury and Waterbury via Middlebury.
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 74 is a state highway in Connecticut in the eastern part of the Greater Hartford area. It runs from Route 194 in South Windsor to US 44 in Ashford, going through the towns of Ellington, Vernon, Tolland, and Willington. East of its junction with I-84, it becomes a rural collector road.
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.
The Mount Hope River is a river in northeastern section of the U.S. state of Connecticut. The river is formed at the outlet of Morey Pond at the extreme northern end of Ashford, Connecticut, at the border of Union, Connecticut, and flows about 15 miles (24 km) south to Mansfield Hollow Lake, just south of Mansfield, Connecticut.
Route 203 is a state highway in eastern Connecticut, running entirely within the town of Windham.
Route 126 is a minor state highway in northwestern Connecticut, running from Route 63 in Canaan to U.S. Route 44 in North Canaan.
Route 190 is a state route in the northern part of the U.S. state of Connecticut. It starts at Route 75 in the town of Suffield and proceeds eastward across the Connecticut River through the towns of Enfield, Somers, and Stafford. It ends at Route 171, in the town of Union. Route 190 was established in 1932 as a route between the state line at Southwick and the town of Enfield. The route was later extended eastward to Union but was truncated in the west to Suffield center.
Route 184 is a state highway in southeastern Connecticut, running from Groton to North Stonington.
Route 195 is a state highway in northeastern Connecticut, running from the Willimantic section of Windham to the town center of Tolland via the Storrs section of Mansfield. The road is the main thoroughfare to access the main campus of the University of Connecticut.
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.
Route 275 is a state highway in northeastern Connecticut running from Coventry to the Storrs section of Mansfield, and serving as a western feeder to the University of Connecticut.
Route 289 is a state highway in eastern Connecticut, running from Lebanon center to Willimantic in the town of Windham.
U.S. Route 44 (US 44) is an east–west United States Numbered Highway that runs for 237 miles (381 km) through four states in the Northeastern United States. The western terminus is at US 209 and New York State Route 55 (NY 55) in Kerhonkson, New York, a hamlet in the Hudson Valley region. The eastern terminus is at Route 3A in Plymouth, Massachusetts.
Route 195 in Mansfield 
I-84 at Ashford – Union town line
Route 190 in Union 
