Route information | ||||
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Maintained by CTDOT | ||||
Length | 54.28 mi[1] (87.36 km) | |||
Existed | 1922–present | |||
Major junctions | ||||
South end | I-95 / SR 745 in New Haven | |||
US 1 in New Haven I-691 in Cheshire I-84 in Southington US 6 in Farmington US 44 / US 202 in Avon | ||||
North end | US 202 / Route 10 at the Massachusetts state line | |||
Location | ||||
Country | United States | |||
State | Connecticut | |||
Counties | New Haven, Hartford | |||
Highway system | ||||
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Connecticut Route 10 is a state highway that runs from Interstate 95 (I-95) in New Haven Massachusetts state line, where it continues as Massachusetts Route 10, which in turn continues directly to New Hampshire Route 10.
Route 10 was originally commissioned in 1922 as New England Route 10, connecting Old Saybrook to Granby. In the 1927, the New England system of route numbers was disbanded, and the route was added to the state route system. In the 1930s, it was realigned to connect New Haven and Granby through Connecticut. It is co-signed with US 202 starting in Avon and continuing north to the state line.