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 85 is a north–south state highway in the east-central portion of the U.S. state of Connecticut linking the city of New London to the town of Bolton.
Route 19 is a minor Connecticut state route running from Stafford to the Massachusetts state line. It is 6.99 miles (11.25 km) long and runs north–south, entirely within Stafford. The road interconnects the settlements in the eastern part of the town.
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.
New York State Route 343 (NY 343) is a state highway located entirely within central Dutchess County, in the Hudson Valley region of the U.S. state of New York. It runs east–west from the intersection of NY 82 in the village of Millbrook to the town of Amenia, where it crosses the Connecticut state line and continues eastward as Route 343, a Connecticut state highway located entirely within the town of Sharon. Along the way, it has a 7.3-mile (11.7 km) concurrency with NY 22 from vicinity of the hamlet of Dover Plains to the hamlet of Amenia.
New York State Route 137 (NY 137) is a 5.51-mile (8.87 km) long state highway in Westchester County, New York, in the United States. The route is a continuation of Connecticut's Route 137, which links NY 137 to Stamford, Connecticut. NY 137 goes through the hamlet of Pound Ridge and ends at NY 121 north of the hamlet of Bedford, locally known as Bedford Village.
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 154 is a state highway in Connecticut running for 28.24 miles (45.45 km). It serves as one of the main thoroughfares in the town of Old Saybrook, intersecting twice with U.S. Route 1. North of I-95, Route 154 runs parallel to Route 9, along to the west bank of the Connecticut River. The route ends in Middletown at Route 9.
Route 82 is an east–west state highway in Connecticut running for 28.47 miles (45.82 km) from Route 9 in Chester to Route 2 and 32 in Norwich.
The Salmon River is formed at the confluence of the Blackledge and Jeremy rivers about one mile west of North Westchester, Connecticut. It drains 96,000 acres and courses for 10.4 miles (16.7 km) to Salmon Cove near Moodus where it flows into the Connecticut River. The Salmon River is probably the largest stream and watershed whose sources and mouth are entirely within the limits of Connecticut.
Connecticut Route 207 is a state highway running from Hebron to Sprague.
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 163 is a state highway in southeastern Connecticut running from Montville to Bozrah.
Route 148 is a state highway in southern and southeastern Connecticut running from Route 79 in Killingworth to Route 82 in the village of Hadlyme. Route 148 crosses the Connecticut River using the Chester–Hadlyme Ferry.
Route 139 is a state highway in southern Connecticut running from Branford to North Branford.
Route 153 is a Connecticut state highway in the Connecticut River valley running from U.S. Route 1 in Westbrook center to Route 154 in Essex Village in the town of Essex.
Route 156 is a Connecticut state highway running from East Haddam to Waterford.
Route 191 is a state highway in northern Connecticut, running from East Windsor to Enfield.
Route 196 is a Connecticut state highway in the lower Connecticut River valley, running from Haddam to the town center of East Hampton.
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 82 in East Haddam 
Route 2 in Colchester 
