Interstate 395 (Connecticut–Massachusetts)

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Interstate 395

I-395 highlighted in red
Route information
Auxiliary route of I-95
Maintained by ConnDOT and MassDOT
Length66.60 mi[1] (107.18 km)
NHSEntire route
Major junctions
South end I-95 in East Lyme, CT
Major intersections
North end
CountryUnited States
StatesConnecticut, Massachusetts
CountiesCT: New London, Windham
MA: Worcester
Highway system
I-384CT I-484
I-391MA I-495
Route 49CT 52 Route 53
Route 49MA 52 Route 53

Interstate 395 (I-395) is an auxiliary Interstate Highway in the US states of Connecticut and Massachusetts; it is maintained by the Connecticut Department of Transportation (CTDOT) and the Massachusetts Department of Transportation (MassDOT). Spanning nearly 67 miles (108 km) on a south–north axis, it is the only spur route of I-95 in Connecticut. The 36-mile (58 km) section between its splits from I-95 in East Lyme and CT 695 in Plainfield is a component highway of the Connecticut Turnpike. Within that state, the highway is named the American Ex-Prisoner of War Memorial Highway from Plainfield to Thompson.

The highway was first established as part of the Connecticut Turnpike in 1958, while the Connecticut Route 52 designation was applied to the portion north of the turnpike in 1967. Connecticut Route 52 was intended to become a southern extension of I-290, although the current designation of I-395 was ultimately assigned in 1983.[2]

Route description

  mi[1] km
CT 54.69 88.02
MA 11.91 19.17
Total 66.60 107.18


I-395 begins at the East LymeWaterford town line as the Connecticut Turnpike leaves I-95 as the latter route turns more easterly toward New London. It is a relatively rural Interstate for most of its length. It passes through Waterford into Montville where it meets Route 2A at exit 9. Eastbound Route 2A provides access to the Mohegan Sun casino, while westbound Route 2A runs concurrently with I-395 into Norwich and ends at exit 13, where it terminates as it joins its parent route, Route 2. After passing Route 2, I-395 bends to the east, and continues into Lisbon, Griswold, and Plainfield, where it bends more northerly and parallels Route 12 for most of the rest of its length. At the Plainfleld–Killingly town line, the Connecticut Turnpike splits to the east as unsigned Route 695, providing access to US Route 6 (US 6) at the Rhode Island state line. I-395 continues north and meets US 6 in Killingly. After crossing into Putnam, it has an interchange with US 44. It then passes through Thompson before crossing the Massachusetts state line into Webster.[3]


After passing through Webster and Oxford, it enters Auburn where it has an interchange with US 20, which provides access to the Route 146 expressway. The I-395 designation for the highway ends as it meets I-90 (Massachusetts Turnpike) at exits 11A and 11B and becomes I-290 as it heads toward Worcester, although the mileage for I-395 runs in parallel with its I-290 counterpart until it reaches I-495 in Marlborough.

Service plazas

In Connecticut, there are three service plazas (a legacy of the turnpike) that provide 24-hour gas stations, convenience stores, plus a Subway and Dunkin' Donuts.

  • Montville (milepost 8): It is southbound only between exits 9 and 6.
  • Plainfield (milepost 35): It is northbound and southbound between exits 32 and 35.

The Connecticut State Police Troop E barracks occupies the former service plaza on the northbound side at Montville.


I-95 at the I-395 split in East Lyme/Waterford town line.

The highway that is now I-395 from its southern terminus with I-95 in East Lyme to exit 35 in Plainfield opened on January 2, 1958, as part of the 129-mile (208 km) Connecticut Turnpike from Greenwich at the New York state line to Killingly at the Rhode Island state line. In 1964, work began on a freeway extension beyond the turnpike in Plainfield north toward Worcester, connecting to the Massachusetts Turnpike (I-90). This new freeway, as well as the existing section of the Connecticut Turnpike from East Lyme to Plainfield, would be designated as Connecticut Route 52. The section between Plainfield and US 44 near Putnam opened in 1967, and the section from US 44 to the Massachusetts state line opened in 1969. Massachusetts completed its section of the freeway in 1977.[4]

In 1983, in response to the cancelation of the proposed I-84 extension from Hartford to Providence, CTDOT wished to supplement the state's loss of Interstate mileage by applying an Interstate designation to Connecticut Route 52. Initially, I-290 was to be extended from its southern terminus in Auburn, Massachusetts. However, in 1983, it was decided to instead apply the I-395 designation to the freeway south of I-90.[5][6]

In May 2013, CTDOT announced that a project that would begin in early 2014 that included renumbering exits along its section of I-395, and Connecticut Route 2A from the then-current sequential numbering system to a distance-based scheme to conform with federal exit numbering standards. During the transition, old exit numbers were posted atop the new exit numbers through 2017 to lessen any confusion.[7] The renumbering began on June 24, 2015, and ended in January 2016; the project included renumbering one sign in Massachusetts announcing the first southbound Connecticut exit.

Exit list

Exit numbers were changed from sequential to distance-based numbering in Connecticut between July and December 2015. Along with Connecticut Route 2A, these are Connecticut's initial distance-based exit numbers.[8] MassDOT also planned to switch exit numbers on all of its Interstates, including I-395, to distance-based numbering in 2016. But the contract to change exit numbers which was to be awarded in December 2015 was indefinitely postponed in the middle of 2016. It was not until November 18, 2019, that MassDOT confirmed that beginning in late summer 2020 the exit renumbering project will begin. On July 29, 2021, MassDOT announced that the exit renumbering on I-395 and I-290 will start on August 8, and it will last for two weeks.[9][10]

StateCountyLocation[11]mi[11]kmOld exitNew exit[12]Destinations[13]Notes
ConnecticutNew LondonEast Lyme0.000.0076
I-95 south (Conn. Turnpike) – New Haven
Exit 76 on I-95 northbound
Waterford2.133.43772 Route 85 – Waterford, Colchester

To Route 32 south (via SR 693) – New London
Southbound left exit and northbound entrance
6.3310.19796 Route 163 – Uncasville, Montville
Route 2A east – Ledyard, Preston
Southern terminus of Route 2A concurrency
Norwich11.0817.838011 Route 82 – Salem, Downtown Norwich
13.7122.068113 Route 2 / Route 32 – Norwich, HartfordSigned as exits 13A (east/south) and 13B (west/north) northbound; northern terminus of concurrency with Route 2A
14.2322.908214West Town Street (SR 642) – Yantic, Norwichtown (NB)

To Route 2 west / Route 32 north – Hartford, Colchester (SB)
18.1729.248318 Route 97 – Taftville, Occum
Lisbon19.5331.4383A19 Route 169 – Lisbon, CanterburyNorthbound exit and southbound entrance
21.1634.058421 Route 12 – Jewett City, Griswold, Lisbon, TaftvilleSigned as exits 21A (north) and 21B (south) southbound
Griswold22.2835.868522 Route 164 / Route 138 – Jewett City, Preston City, Pachaug
24.2639.048624 Route 201 – Hopeville, Jewett City
WindhamPlainfield28.2345.438728Lathrop Road (SR 647)
29.6547.728829 Route 14A – Plainfield, Oneco
32.3051.988932 Route 14 – Central Village, Moosup

To US 6 east – Providence, RI
Northbound exit and southbound left entrance; access via Connecticut Turnpike
Killingly37.6260.549137 US 6 – Danielson, Willimantic, Hartford, Providence, RISigned as exit 37A (east) and 37B (west) southbound
38.4061.809238Lhomme Street / Westcott Road (SR 607) – South Killingly, Danielson
41.1666.249341 Route 101 – Dayville, East Killingly
42.9969.199443Lake Road – Attawaugan, Ballouville
Putnam45.2472.819545Kennedy Drive
To Route 12 / Heritage Road – Putnam, Putnam Heights
47.0575.729747 US 44 – Woodstock, East Putnam
Thompson49.5279.699849 Route 12 – Grosvenor DaleNorthbound left exit and southbound entrance
50.2580.879950 Route 200 – Thompson, North Grosvenor Dale
53.5786.2110053Wilsonville Road – East Thompson, Wilsonville
 ConnecticutMassachusetts state line
MassachusettsWorcesterWebster1.0061.6191 Route 193 – Webster, Thompson, CT
2.5784.14923 Route 16 – Webster, Douglas
4.0256.47834Cudworth Road – North Webster, South OxfordExit partially in Oxford
Oxford6.58310.59447Sutton Avenue – Oxford, SuttonSplit into exits 7A (east) and 7B (west)
8.98914.46659Depot Road – North Oxford

US 20 east to I-84 west / Route 146 – Shrewsbury, Sturbridge[14]
Signed as exits 11A (east) and 11B (west)
11.9419.227-812 I-90 / Mass Pike / Route 12 – Boston, Springfield, Auburn, WebsterNo northbound exit; signed as exits 12A (I-90/Route 12 north) and 12B (Route 12 south); exit 90 on I-90 / Mass Pike
I-90 / Mass Pike / Route 12 south – Auburn, Webster
Northbound exit only; exit 90 on I-90 / Mass Pike

I-290 east – Worcester, Marlboro
Continuation east
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. ^ a b Starks, Edward (January 27, 2022). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways". FHWA Route Log and Finder List. Federal Highway Administration. Retrieved January 8, 2023.
  2. ^ "State Ordered to Lift Ban on Tandem Trucks". Hartford Courant. June 14, 1983. The article lists "I-290 (formerly Route 52)" as one of the highways the lifting of the ban applies to.
  3. ^ Bureau of Policy and Planning Office of Roadway Information Systems Roadway Inventory Section (2015). Highway Log: Connecticut State Numbered Routes and Roads as of December 31, 2014 (PDF). Hartford: Connecticut Department of Transportation. Archived from the original (PDF) on September 5, 2015. Retrieved March 22, 2008. {{cite book}}: |author= has generic name (help)
  4. ^ Anderson, Steve. "Interstate 395 (Connecticut)". NYC Roads. Retrieved January 8, 2019.
  5. ^ "I-290". Connecticut Roads. Retrieved November 28, 2022.
  6. ^ "I-395". Connecticut Roads. Retrieved November 28, 2022.
  7. ^ "New Details Emerge for I-395 Exit Renumbering". Montville Patch. May 14, 2013. Retrieved October 5, 2014.
  8. ^ Bureau of Policy and Planning Office of Roadway Information Systems Roadway Inventory Section (2011). Highway Log: Connecticut State Numbered Routes and Roads as of December 31, 2010 (PDF). Hartford: Connecticut Department of Transportation. Archived from the original (PDF) on January 16, 2014. Retrieved December 31, 2013. {{cite book}}: |author= has generic name (help)
  9. ^ Massachusetts Department of Transportation (September 12, 2015). "Bid Solicitation:AP# HSIP-002S(874)X Exit Signage Conversion to Milepost-Based Numbering System along Various Interstates, Routes and the Lowell Connector". COMMBUYS. Commonwealth of Massachusetts. Retrieved September 21, 2015.
  10. ^ Malme, Robert H. (2017). "Massachusetts Interstate Highways Exit Lists". Retrieved January 18, 2017.
  11. ^ a b Planning Division. "Massachusetts Route Log Application". Massachusetts Department of Transportation. Archived from the original on August 26, 2014. Retrieved August 21, 2014.
  12. ^ Massachusetts Department of Transportation (December 5, 2019). "I-395 Renumbering" (PDF). Massachusetts Department of Transportation. Retrieved December 5, 2019.
  13. ^ Massachusetts Department of Transportation. "Exit Numbers and Names: Route I-395 (Webster to Auburn)". Massachusetts Department of Transportation. Archived from the original on August 26, 2014. Retrieved August 21, 2014.
  14. ^ "Major highway routes and exits". Massachusetts Department of Transportation. Retrieved 20 February 2020.

External links