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Special service roads are roads that connect a federal or state facility (including state parks and some Interstate Highway interchanges) to a signed state route. Roads classified by the Connecticut Department of Transportation as special service roads are given an unsigned number designation between 400 and 499, or 1001.
Roads classified by the Connecticut Department of Transportation as state roads are given an unsigned number designation between 500 and 999, with the first digit depending on which Maintenance District the road is primarily located in. Below is a list of the state roads that are classified as arterial roads.
Roads classified by the Department of Transportation as state roads are given an unsigned number designation between 500 and 999. The first digit denotes which Maintenance District the road is mainly located in: 500–599: District 1: Greater Hartford; 600–699: District 2: Quiet Corner, Lower Connecticut River Valley, Southeastern Connecticut
Interstate Highways in the U.S. state of Connecticut run a total of 446.33 miles (718.30 km). Connecticut has three primary highways and five auxiliary highways.Most of the highways are maintained by the Connecticut Department of Transportation, with the exception of Interstate 684, which is maintained by the New York State Department of Transportation.
The Connecticut Department of Transportation (officially referred to as CTDOT, occasionally ConnDOT, and CDOT in rare instances) is responsible for the development and operation of highways, railroads, mass transit systems, ports and waterways in Connecticut. [1] CTDOT manages and maintains the state highway system.
United States Numbered Highways in the U.S. state of Connecticut, are numbered by the American Association of State Highway and Transportation Officials (AASHTO) and maintained by the Connecticut Department of Transportation, a total of 547.75 miles (881.52 km) as a system of state highways and are numbered from 1 to 202.
In 1959, Connecticut's government spent $2.2 million on widening High Ridge Road, a segment of Route 137, from two lanes to four lanes. [ 4 ] In 1962, the Tri-State Transportation Committee proposed expanding Route 137 to be four lanes divided with a median and no access control , from I-95 to the Merritt Parkway . [ 4 ]
Initially, Connecticut and Massachusetts requested that the American Association of State Highway and Transportation Officials (AASHTO) extend the I-290 designation southward along free Route 52 and the Connecticut Turnpike to I-95 in Waterford. AASHTO rejected the I-290 request and instead approved the I-395 designation in 1983.