Connecticut Route 3

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Connecticut Route 3 marker

Route 3
Route information
Maintained by ConnDOT
Length 14.48 mi (23.30 km)
Existed 1941 (extended 1991) – present
Major junctions
South end Route 66 in Middletown
  I-91 in Wethersfield
North end Route 2 at the Glastonbury-East Hartford town line
Counties Middlesex, Hartford
Highway system
  • Routes in Connecticut
Route 2A Route 4
I-484 I-491.svg I-684

Route 3 is a 14.48-mile-long (23.30 km) route connecting Middletown to the Glastonbury-East Hartford town line. It passes through the towns of Cromwell, Rocky Hill, Wethersfield, and Glastonbury. The northernmost 3 miles (4.8 km) of Route 3 is an expressway that was originally intended for the cancelled Interstate 491.

Route description[edit]

CT 3 at I-91 in Wethersfield.

Route 3 begins at Route 66 in Middletown, and is a secondary, minor arterial road for its first 11 miles (18 km) up to its interchange with Interstate 91 in Wethersfield. After crossing into Cromwell, it intersects Route 372, which offers access to Route 9 just east of the intersection. After overpassing Route 9, it continues north into Rocky Hill and overpasses Interstate 91 without an interchange (access is via West Street [SSR 411]). After a brief concurrency with Route 160, it crosses into Wethersfield, where it meets the eastern end of Route 287 and crosses over Route 99. After the Silas Deane Highway ([Route 99]) intersection, it becomes a freeway for the last 3.5 miles (5.6 km). After a partial interchange with Interstate 91 (no direct access to I-91 South from Route 3 North), it crosses the Connecticut River on the William H. Putnam Memorial Bridge into Glastonbury. The freeway has one exit for Main Street (via Glastonbury Boulevard northbound and Putnam Boulevard southbound) before ending at a trumpet interchange with the Route 2 freeway at the East Hartford town line. The last 0.75 miles (1.21 km) of Route 3 is the merging ramp from Route 3 northbound to Route 2 westbound.



Route 3 was established in 1941. It originally ran from West Street/Berlin Road in Cromwell, which was part of Route 72 at the time (now Route 372), to the Silas Deane Highway (Route 99) in Wethersfield.

1958-1973 (I-491)[edit]

Interstate 491
Location Hartford, Connecticut
Existed 1958–1973

In late 1958, as part of the planned Interstate 491 (a southeastern bypass of Hartford), a freeway from I-91 to Main Street in Glastonbury, crossing the Connecticut River on the Putnam Memorial Bridge, was opened. The Route 3 designation was temporarily extended along this freeway pending completion of I-491. In 1973, I-491 was cancelled due to local opposition and the Route 3 designation along this freeway segment became permanent. In the late 1980s, the freeway was extended so that it terminated at Route 2, rather than at Main Street.


In 1991, when the Route 9 freeway through Berlin and New Britain was completed, Route 72 was truncated to end at Route 9 in New Britain. The east–west portion of the old alignment of Route 72 was reassigned to an extended Route 372 (running along Berlin Road/West Street to end at Route 99 in Cromwell). The north–south portion of old Route 72 from Cromwell to Middletown (ending at Route 66) was reassigned to Route 3.

Junction list[edit]

County Location mi km Destinations Notes
Middlesex Middletown 0.00 0.00 Route 66 – Middletown, Portland, Meriden
Cromwell 3.37 5.42 Route 372 to Route 9 – Middletown, Cromwell, Hartford, Berlin, New Britain
Hartford Rocky Hill 6.59 10.61 To I-91 / SSR 411 (West St) – Hartford, New Haven, Dinosaur State Park
7.21 11.60 Route 160 east – Rocky Hill Eastern terminus of CT 160 overlap
7.40 11.91 Route 160 west – Berlin Western terminus of CT 160 overlap
Wethersfield 10.21 16.43 Route 287 west – Newington
10.37 16.69 Route 99 – Hartford, Rocky Hill
10.99 17.69 Elm Street At-grade intersection, Begin Expressway
11.31 18.20 I-91 – Hartford, New Haven No direct access Route 3 North to I-91 South
Connecticut River 11.63–
Putnam Bridge
Glastonbury 12.96–
Main Street  – Glastonbury Exits to Glastonbury Blvd (NB) and Putnam Blvd (SB)
Route 2 – East Hartford, Norwich Route 2 exit 5D, trumpet interchange. Northern terminus of CT 3
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


External links[edit]

Route map: Google

KML is from Wikidata