Route information | ||||
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Maintained by CTDOT | ||||
Length | 15.75 mi[1] (25.35 km) | |||
Existed | 1932[2]–present | |||
Major junctions | ||||
South end | US 1 in Clinton | |||
I-95 / Conn. Turnpike in Clinton Route 9 in Haddam | ||||
North end | Route 154 in Haddam | |||
Location | ||||
Country | United States | |||
State | Connecticut | |||
Counties | Middlesex | |||
Highway system | ||||
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Route 81 is a state highway in Connecticut from Clinton center through Killingworth center to the village of Higganum in the town of Haddam.