Connecticut Route 8

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Route 8

Route 8 highlighted in red
Route information
Maintained by CTDOT
Length67.36 mi (108.41 km)
Major junctions
South end I-95 in Bridgeport
Major intersections
North end Route 8 in Sandisfield, MA
CountryUnited States
CountiesFairfield, New Haven, Litchfield
Highway system
  • Connecticut State Highway System
US 7 Route 9

Route 8 is a 67.36-mile (108.41 km) state highway in Connecticut that runs north–south from Bridgeport, through Waterbury, all the way to the Massachusetts state line where it continues as Massachusetts Route 8. Most of the highway is a four-lane freeway but the northernmost 8.8 miles (14.2 km) is a two-lane surface road.[1]

Route description

Route 8 begins at Interstate 95 (I-95) exit 27A in Bridgeport. The first 3.75 miles (6.04 km) through Bridgeport runs concurrently with the freeway portion of Route 25. Approaching the split between Routes 8 and 25, the road expands to six, eight, and even ten lanes. Route 8 continues northeastward into Trumbull where there is an interchange with the Merritt Parkway.

From Trumbull, it briefly enters Stratford before entering Shelton passing by several exits providing access to business parks. It then crosses the Housatonic River and continues into Derby. After the Route 34 interchange, the road takes on more of a semi-rural character as it winds its way along the Naugatuck River through the towns of Ansonia, Seymour, and Beacon Falls before it becomes more suburban in nature in Naugatuck and then more urban as it enters Waterbury. In Waterbury, Route 8 meets with I-84 at the interchange known locally as the "Mixmaster". After the Route 73 interchange, the road returns to its winding semi-rural nature, passing through Watertown and Thomaston. In the latter city, U.S. Route 6 (US 6) briefly overlaps for about a mile. The highway then continues through Litchfield and Harwinton. After a brief suburban section through Torrington where it intersects US 202 and Route 4, it returns to a rural freeway before entering the town of Winchester.

The freeway section of Route 8 ends at US 44 and Route 183 in Winsted. After a short 0.33-mile (0.53 km) northwesterly overlap with US 44 and Route 183, Route 8 continues north as a mostly rural surface road. It intersects the western end of Route 20 on the northern edge of town, and continues through Colebrook to the Massachusetts state line, becoming Massachusetts Route 8 upon entering Sandisfield.

The section from I-95 to the Route 25 split is also known as the Colonel Henry Mucci Highway (designation continues on Route 25). The section from Shelton to Beacon Falls is known as the General Samuel Jaskilka Highway. The section from Constitution Boulevard in Shelton to Route 334 at the Seymour–Ansonia town line is known as the Ansonia–Derby–Shelton Expressway. The section from Waterbury to the freeway end in Winchester is known as the James H. Darcey Memorial Highway.


New England 8.svg

Most of the alignment of Route 8 was part of an improved toll road known as the Waterbury River Turnpike, which ran from Naugatuck, via Torrington, Winchester Center and Colebrook Center, to the Massachusetts state line. The turnpike was chartered in 1801 and collected tolls until 1862. Two other sections of Route 8 were also old turnpikes: the portion north of Torrington was known as the Still River Turnpike chartered in 1815; the portion between Seymour and Naugatuck was known as the Humphreysville and Salem Turnpike chartered in 1825.

In 1922, the six New England states began a region-wide highway numbering system. The trunk highway from Stratford through Waterbury to the Massachusetts state line became part of the multi-state New England Route 8. Route 8 remained unchanged in the 1932 state highway renumbering. The main road connecting Bridgeport and Shelton (following Noble Avenue, Huntington Turnpike, Shelton Road, Bridgeport Avenue, and Center Street), which was designated as State Highway 316 in 1922, was renumbered as Route 65 in the 1932 renumbering.

In 1951, the Ansonia–Derby–Shelton Expressway portion between Constitution Boulevard in Shelton and Pershing Drive in Derby (including the Commodore Isaac Hull Memorial Bridge) opened to traffic. As part of the freeway upgrades to Route 8, the southern terminus was shifted west from Stratford to Bridgeport, taking over old Route 65. The original southern end of Route 8 was assigned to an extended Route 110. By 1957, the entire length of the Ansonia–Derby–Shelton Expressway portion was open, with the extension from Pershing Drive to Route 334 at the Ansonia/Seymour town line complete.

In the 1960s and 1970s additional sections of the Route 8 freeway opened in stages: in 1960, the segment from Route 63 to South Main Street in Waterbury opened; in 1962, the section from Route 334 to Route 67, including the elevated highway portion through central Seymour, opened; in 1966, the Mixmaster interchange with I-84 is completed and the freeway was also extended to Route 262 in Watertown. An additional section from Route 118 in Litchfield to Kennedy Drive in Torrington also opened. By 1970, the portion from Route 262 in Watertown to Route 118 in Litchfield opened. By 1972, the segment from I-95 to Route 108 in Trumbull, including the overlap with Route 25, was completed. The freeway was also extended from Kennedy Drive in Torrington to its present terminus at Route 44 in Winsted. By 1975, the freeway was completed between Huntington Turnpike at the Trumbull/Shelton town line to Constitution Boulevard in Shelton.

The early 1980s saw the completion of the Route 8 freeway with the 4-lane surface route from Route 67 in Seymour to Route 63 in Naugatuck (originally built in the 1940s) upgraded to a freeway, including the portion that bypasses Beacon Falls. The original alignment of Route 8 through Beacon Falls became part of Route 42. The last segment of freeway between Route 108 in Trumbull and Huntington Turnpike, including a new interchange with the Merritt Parkway was completed in 1982. This constituted the completion of the freeway from Bridgeport to Winchester, 35 years after construction began.

Attempts at Interstate designation

The Route 8 freeway was envisioned to continue beyond its present northern terminus in Winsted to either Massachusetts or southern Vermont. In 1972, Massachusetts and Connecticut requested an interstate designation for the Route 8 corridor that included completed and yet-to-be-built sections in both states. That request was denied by the Federal Highway Administration.[2]

In the ensuing 40 years, on-and-off discussions and engineering studies to designate Route 8 as an interstate route have continued, with the most recent study being completed in 2011. In that report, the study noted that not all of the Route 8 freeway meets interstate standards, particularly sections that were designed and built before the interstate highway era. Newer sections between Bridgeport and Shelton, around Beacon Falls, and from the I-84 interchange in Waterbury to Winsted were designed and built from the late 1960s to the early 1980s and either meet interstate standards or require minimal spot upgrades to meet interstate standards. The report noted the sections that do not meet interstate standards include the 8-mile segment from Shelton to Seymour, which was built in stages from the late 1940s through the early 1960s; and the 5-mile section through Naugatuck, which was built in the 1950s. Both of these segments include narrow cross-sections, tight curve radii, and closely spaced interchanges that do not meet current interstate standards. Because these segments wind their way through the urban centers of Shelton, Derby, Seymour and Naugatuck on elevated viaducts, upgrading (or bypassing) these segments would be costly and cause significant disruption to the surrounding communities.

Exit list

CTDOT will be renumbering the exits to mile-based exit numbers as part of a sign replacement that will be taking along most of this corridor in Winter 2022.

CountyLocationmi[1]kmOld exitNew exitDestinationsNotes
1A-B I-95 – New Haven, New York City

Route 25 begins
Southern terminus of Routes 25 and 8; exit 27A on I-95 (Connecticut Turnpike)
0.400.6411CProspect Street / Myrtle AvenueSouthbound exit and northbound entrance
0.801.2921D Route 130 (Fairfield Avenue)Southbound exit and northbound entrance
1Golden Hill Street / Main StreetNorthbound exit and southbound entrance
2AMain Street / Washington AvenueSouthbound exit and northbound entrance
2.213.56Lindley StreetNorthbound exit and southbound entrance
2.804.5152B US 1 (Boston Avenue / North Avenue)Access via Chopsey Hill Road

Route 25 north to Route 15 south / Merritt Parkway south – Trumbull, Danbury
Northern terminus of Route 25 concurrency; northbound exit and southbound entrance; exit number not signed
Trumbull4.176.7174 Route 127 (White Plains Road)Southbound exit and northbound entrance

Route 108 (Nichols Avenue) / Route 15 north / Merritt Parkway north – Stratford, Trumbull, New Haven
No northbound access to Route 15; exit 52 on Merritt Parkway

Route 15 north / Merritt Parkway north – New Haven
Northbound exit and southbound entrance; exit 52 on Merritt Parkway

Route 15 south / Merritt Parkway south – New York City
Southbound exit and northbound entrance; exit 52 on Merritt Parkway
Shelton7.1611.52117Huntington Road / Bridgeport AvenueSigned for Huntington Road northbound, Bridgeport Avenue southbound; access via SR 714
9.1914.79129Old Stratford Road
11.4718.461311Constitution Boulevard / Bridgeport AvenueAccess via SR 714
12.2819.761412A Route 110 (Howe Avenue) – Shelton
Housatonic River12.28–
Commodore Hull Bridge
New HavenDerby12.8420.661512B Route 34 – Derby, New HavenAccess to Derby-Shelton station
13.4021.571613APershing Drive – AnsoniaNorthbound exit and southbound entrance; access via SR 727
13.6822.021713BSeymour AvenueSigned as exit 13 southbound
14.3323.061814Division StreetNorthbound exit and southbound entrance; access via Westfield Avenue
Ansonia15.7925.411915 Route 334 (Wakelee Avenue)Southbound exit signed to Route 334
17Derby AvenueSouthbound exit and northbound entrance; access via SR 728
Derby Avenue (SR 728) to Route 67 – Oxford
Northbound exit and southbound entrance
18.6830.062218 Route 67 – Seymour
Beacon Falls21.0933.9423
21 Route 42 – Beacon Falls, OxfordNorthbound exit and southbound entrance
To Route 42 – Beacon Falls, Oxford
Southbound exit and northbound entrance; access via SR 852
Cross Street to Route 63
25.2740.672625A Route 63 (South Main Street) – BethanyBethany not signed northbound
25.7441.422725BNaugatuckAccess via North Main Street (northbound) / Maple Street (southbound) (SR 709)
To Route 68 – Union City, Prospect
Access via SR 710
27.3143.952927South Main Street – WaterburyAccess via SR 847; Waterbury not signed southbound
Waterbury29.3747.273029South Leonard Street / Washington AvenueSouth Leonard Street not signed southbound
31-3330A-C I-84 / Riverside Street – Hartford, Danbury, Downtown WaterburyMixmaster Interchange; signed as exits 30A (I-84 east), 30B (Riverside) and 30C (I-84 west); no northbound access to Riverside Street
30.6449.313430DWest Main Street – Downtown WaterburySouthbound exit and northbound entrance
Route 73 north – Oakville, Watertown
Northbound exit and southbound entrance; southern terminus of Route 73
32.6152.483632Huntingdon Avenue / Colonial Avenue
LitchfieldWatertown34.3155.223734 Route 262 – Watertown

US 6 west / Route 109 to Route 254 – Thomaston, Watertown
Southern terminus of US 6 concurrency; No northbound exit for Watertown
US 6 east / Route 222 – Thomaston, Bristol, Plymouth, Terryville
Northern terminus of US 6 concurrency
40.3664.954040 Route 222 (North Main Street)Southbound exit and northbound entrance
Northfield44.1170.994144Northfield, CampvilleAccess via Campville Road
Litchfield46.8275.354246 Route 118 – Litchfield, Harwinton
Torrington49.2579.264349Harwinton Avenue
49.9380.354450 Route 4 / US 202 – Downtown Torrington
51.8183.384551Winsted Road / Kennedy Drive
55.5589.404655Pinewoods Road – Burrville
Winchester58.5194.16Northern end of freeway section

US 44 east / Route 183 south – New Hartford
Southern terminus of US 44 / Route 183 concurrency

US 44 west / Route 183 north – Colebrook, Canaan
Northern terminus of US 44 / Route 183 concurrency
Route 20 east – Riverton
Western terminus of Route 20
Route 8 north – Sandisfield, Otis
Continuation into Massachusetts
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b Bureau of Policy and Planning (2004). Highway Log: Connecticut State Numbered Routes and Roads as of December 31, 2004 (PDF). Connecticut Department of Transportation. Archived from the original (PDF) on December 3, 2007. Retrieved January 20, 2008. {{cite book}}: |author= has generic name (help)
  2. ^ Connecticut Department of Transportation (February 18, 2011). Route 8 Deficiencies & Needs Study Stakeholder Group Meeting (PDF). Connecticut Department of Transportation.

External links