Connecticut Route 81

Route 81
Map of Middlesex County in southern Connecticut with Route 81 highlighted in red
Route information
Maintained by ConnDOT
Length:	15.75 mi (25.35 km)
Existed:	1932 – present
Major junctions
South end:	US 1 in Clinton
	I-95 in Clinton Route 9 in Haddam
North end:	Route 154 in Haddam
Location
Counties:	Middlesex
Highway system
Routes in Connecticut Interstate U.S. State SSR SR ← Route 80 Route 82 →

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 81 begins at an intersection with US 1 in the town center of Clinton and heads north as Hull Street then quickly shifts to High Street. It intersects with I-95 (Exit 63) about 0.7 miles (1.1 km) north of US 1 and passes in front of the Clinton Crossing outlet mall before heading into the town of Killingworth. North of I-95 in Clinton, the road is known as Killingworth Turnpike. In Killingworth, Route 81 becomes Clinton Road and has a junction with Route 80 south of the town center at a rotary. North of Route 80, the road becomes known as Higganum Road, intersecting with Route 148 north of the town center before crossing into the town of Haddam. In Haddam, Route 81 is known as Killingworth Road and has an interchange with Route 9 at Exit 9 before ending at an intersection with Route 154 in the village of Higganum.