State Roads in Connecticut
System information
NotesState Roads in Connecticut maintained by ConnDOT
Highway names
InterstatesInterstate X (I-X)
US HighwaysU.S. Route X (US X)
StateRoute X
System links
  • Connecticut State Highway System

In the U.S. state of Connecticut, state highways are grouped into signed routes, unsigned special service roads (SSR), and unsigned state roads (SR). State roads are feeder roads that provide additional interconnections between signed routes, or long entrance/exit ramps to expressways. 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.

Number Length (mi)[1] Length (km) Southern or western terminus Northern or eastern terminus Local names[1] Formed Removed Notes
SR 500 0.510.82 I-84 / US 6 / Route 2 in East HartfordGovernor Street in East Hartford  
SR 501 0.771.24 I-84 / US 6 in West HartfordPark Road in West Hartford Trout Brook Connector  
SR 502 6.3110.15 Route 2 in East HartfordUS 6 / US 44 in Manchester East River Drive Extended, Silver Lane, Spencer Street  
SR 503 0.681.09 Sisson Avenue in HartfordI-84 / US 6 in Hartford Sisson Avenue Connector  
SR 504 0.701.13 Flatbush Avenue in HartfordI-84 / US 6 in Hartford  
SR 505 0.530.85 Route 175 in NewingtonRoute 9 in Newington Fenn Road  
SR 508 1.822.93 Route 4 in FarmingtonI-84 / US 6 in Farmington  
SR 509 0.510.82 Route 322 in SouthingtonRoute 10 in Southington Clark Street  
SR 510 2.554.10 US 5 in East WindsorUS 5 in Enfield Main Street, Depot Hill Road  
SR 511 0.380.61 Route 10 in PlainvilleRoute 72 in Plainville Hooker Street  
SR 513 0.671.08 Route 75 in SuffieldEnd state maintenance Bridge Street  
SR 514 0.200.32 US 5 in EnfieldRoute 190 / Pearl Street in Enfield Franklin Street  
SR 515 0.200.32 Pearl Street in EnfieldUS 5 / Route 190 in Enfield Frew Terrace  
SR 516 0.180.29 Route 2 in East HartfordMain Street (SR 517) in East Hartford Willow Street Extended  
SR 517 1.242.00 Route 2 in East HartfordUS 5 / Route 15 in East Hartford Main Street, High Street  
SR 518 0.450.72 Silver Lane (SR 502) in East HartfordI-84 / US 6 in East Hartford Roberts Street  
SR 524 0.310.50 Route 3 in CromwellRoute 372 in Cromwell Berlin Road  
SR 526 1.662.67 Route 187 in SuffieldRoute 168 in Suffield Sheldon Street  
SR 527 2.053.30 Route 30 in VernonRoute 74 / Route 83 in Vernon West Street  
SR 528 2.594.17 Route 190 in SomersRoute 83 in Somers Turnpike Road  
SR 529 1.332.14 Route 173 in West HartfordNewington Avenue in Hartford New Britain Avenue  
SR 530 0.580.93 Wethersfield Avenue in HartfordBrainard Road in Hartford Airport Road  
SR 531 1.392.24 Route 4 in FarmingtonI-84 / US 6 in Farmington South Road, Colt Highway  
SR 532 0.440.71 Route 177 in PlainvilleRoute 10 in Southington Washington Street, Birch Street  
SR 533 4.036.49 US 6 / US 44 / Route 85 in BoltonRoute 30 in Vernon Cider Mill Road, Tunnel Road  
SR 534 4.457.16 Route 83 in ManchesterRoute 85 in Bolton Charter Oak Street, Highland Street  
SR 535 0.210.34 Route 71 in West HartfordI-84 / US 6 in West Hartford Ridgewood Road  
SR 536 1.532.46 Route 372 in PlainvilleRoute 372 in Plainville Pine Street, Woodford Avenue, Crooked Street  
SR 539 3.705.95 Route 20 in HartlandRoute 189 in Granby Mountain Road  
SR 540 1.432.30 Route 189 in East GranbyRoute 187 in East Granby Hatchett Hill Road  
SR 541 0.821.32 Tunnel Road (SR 533) in VernonRoute 30 in Vernon South Frontage Road, Bolton Road  
SR 542 0.300.48 Tunnel Road (SR 533) in VernonBolton Road (SR 541) in Vernon Ferguson Road  
SR 543 0.380.61 Route 314 in WethersfieldMaple Avenue at WethersfieldHartford town line Berlin Turnpike  
SR 545 0.150.24 Route 66 in MiddletownRoute 9 / Route 17 in Middletown Washington Street  
SR 549 1.141.83 US 6 in FarmingtonSouth Road (SR 531) in Farmington Birdseye Road  
SR 552 0.230.37 US 6 in FarmingtonRoute 10 in Farmington Scott Swamp Road  
SR 555 1.302.09 Route 372 in New BritainMain Street in New Britain West Main Street  
SR 565 1.732.78 Route 179 in CantonUS 44 in Canton Maple Avenue  
SR 569 0.170.27 I-91 in Windsor LocksRoute 159 in Windsor Locks Lawnacre Road  
SR 571 1.522.45 Route 71A / Route 372 in BerlinRoute 9 in Berlin  
SR 572 0.480.77 Route 9 in BerlinUS 5 / Route 15 in Berlin Frontage Road, Worthington Ridge Road  
SR 585 1.252.01 Route 168 in SuffieldPoint Grove Road at the Massachusetts state line in Suffield Babbs Road  
SR 597 0.580.93 Route 10 in SouthingtonI-84 in Southington  
SR 598 0.761.22 Pulaski Circle in HartfordI-91 in Hartford Whitehead Highway  
SR 600 0.671.08 Route 138 in LisbonRoute 169 in Lisbon Kinsman Hill Road  
SR 602 3.285.28 Route 154 in EssexRoute 80 in Deep River Main Street, Warsaw Street  
SR 603 3.545.70 Route 85 in HebronRoute 316 in Andover London Road, Boston Hill Road  
SR 604 0.801.29 Route 153 in EssexMain Street (SR 602) in Essex Westbrook Road  
SR 605 0.300.48 Route 165 in PrestonRoute 164 in Preston Old Shetucket Turnpike  
SR 607 2.544.09 Route 12 in KillinglyUS 6 in Killingly Westcott Road  
SR 608 4.326.95 Norwich Avenue (SR 616) / McGrath Lane in LebanonFitchville Road at BozrahNorwich town line Norwich Avenue, Fitchville Road  
SR 609 0.971.56 Route 151 in East HaddamRoute 149 in East Haddam Leesville Road  
SR 610 2.163.48 Route 32 in FranklinRoute 207 in Franklin Baltic Road  
SR 612 0.140.23 Route 163 in BozrahFitchville Road (SR 608) in Bozrah Haughton Road  
SR 614 2.634.23 US 1 in GrotonRoute 184 in Groton Allyn Street, Mystic Street, Cow Hill Road  
SR 615 1.322.12 Route 2 in ColchesterRoute 85 in Colchester Old Hartford Road, Broadway  
SR 616 6.8310.99 Route 85 in ColchesterRoad end in Lebanon Norwich Avenue, McGrath Lane  
SR 617 0.851.37 I-95 / Route 2 in North StoningtonRoute 49 in North Stonington  
SR 618 0.691.11 Westcott Road (SR 607) in KillinglyUS 6 in Killingly North Frontage Road  
SR 619 0.490.79 I-395 in KillinglyWestcott Road (SR 607) in Killingly Gauthier Avenue  
SR 620 0.310.50 Route 171 in UnionEnd state maintenance Mashapaug Road  
SR 621 0.100.16 Route 9 / Route 153 in EssexRoute 154 in Essex  
SR 623 1.231.98 One-way frontage road along southbound I-95 in New London and Waterford North Frontage Road, Parkway North  
SR 624 0.600.97 I-95 in WaterfordUS 1 in New London Parkway South, South Frontage Road  
SR 625 0.991.59 US 1 in WestbrookRoute 145 in Westbrook Grove Beach Road  
SR 626 0.250.40 Route 216 / Route 184 in North StoningtonRhode Island state line Providence New London Turnpike  
SR 627 0.911.46 Route 201 in North StoningtonRoute 2 in North Stonington Mystic Road  
SR 628 0.330.53 US 1 in Old SaybrookEnd state maintenance Spring Brook Road  
SR 629 0.260.42 Route 138 in GriswoldI-395 / Route 164 in Griswold  
SR 630 0.360.58 Route 164 in GriswoldRoute 138 / I-395 in Griswold  
SR 632 0.801.29 Route 195 in MansfieldUS 6 / Mansfield City Road in Mansfield North Frontage Road  
SR 633 0.791.27 Mansfield City Road in MansfieldUS 6 / Route 195 in Mansfield South Frontage Road  
SR 635 0.580.93 Huntington Street (SR 641) in New LondonBriggs Street (SR 638) in New London Williams Street  
SR 636 0.641.03 Norwood Avenue in New LondonRoute 32 in New London Briggs Street, Briggs-Mohegan Connector, Mohegan Avenue  
SR 637 0.510.82 Route 11 in ColchesterRoute 354 in Colchester Lake Hayward Road  
SR 638 0.160.26 Williams Street (SR 635) in New LondonBriggs Street (SR 638) / Briggs-Mohegan Connector (SR 638) in New London Briggs Street  
SR 639 0.771.24 US 1 / Jefferson Avenue in New LondonUS 1 in New London Colman Street Signed as southbound US 1
SR 640 0.140.23 Route 74 in WillingtonRoute 32 in Willington Phelps Way  
SR 641 1.762.83 US 1 in New LondonUS 1 in New London South Frontage Road, Huntington Street, Jay Street, Truman Street, Bank Street  
SR 642 2.654.26 Route 2 / Route 32 in NorwichRoute 2 / Route 32 / Route 169 in Norwich Town Street, Washington Street  
SR 643 0.130.21 US 1 in New LondonRoute 213 in New London Lee Avenue  
SR 644 0.751.21 Route 97 in PomfretUS 44 / Route 169 in Pomfret Murdock Road  
SR 646 0.180.29 Route 82 in NorwichRoute 82 in Norwich North Thames Street  
SR 647 0.240.39 I-395 in PlainfieldRoute 12 in Plainfield Lathrop Road  
SR 649 2.694.33 Route 349 in GrotonUS 1 in Groton Rainville Avenue, Poquonnock Road, High Rock Road, Tower Avenue, South Road  
SR 654 0.280.45 Route 27 in StoningtonI-95 in Stonington  
SR 660 1.642.64 Route 97 in NorwichRoute 138 in Sprague Bridge Street  
SR 661 0.110.18 Route 32 in WindhamRoute 66 in Windham Thread City Crossing (Frog Bridge)  
SR 664 5.709.17 Route 14 in PlainfieldUS 6 in Killingly Lake Street, Snake Meadow Road  
SR 668 2.003.22 Route 169 in CanterburyRoute 12 in Canterbury Butts Bridge Road  
SR 680 0.991.59 Route 2 in LedyardRoute 2 / Wintechog Hill Road in North Stonington MGM Drive, Foxwoods Boulevard  
SR 693 1.412.27 Route 32 in WaterfordI-395 in Montville Montville Connector  
SR 695 4.497.23 I-395 in PlainfieldUS 6 in Killingly Connecticut Turnpike  
SR 700 1.732.78 Route 130 / Water Street in BridgeportRoute 130 / State Street Extended in Bridgeport Fairfield Avenue Westbound couplet of Route 130
SR 702 0.811.30 US 5 in WallingfordI-91 in Wallingford Wharton Brook Connector  
SR 703 0.200.32 Route 63 in BethanyRoute 42 in Bethany Litchfield Turnpike  
SR 705 2.634.23 Route 162 in West HavenRoute 162 in West Haven Ocean Avenue, Platt Avenue  
SR 706 0.821.32 Howe Street in New HavenRoute 10 in New Haven North Frontage Road Westbound couplet of Route 34
SR 707 3.625.83 Whitney Avenue at New HavenHamden town lineRoute 10 / Dixwell Avenue (SR 717) in Hamden Whitney Avenue  
SR 708 0.320.51 Old Gate Lane in MilfordI-95 / Woodmont Road in Milford Old Gate Lane  
SR 709 0.270.43 Route 63 in NaugatuckRoute 8 in Naugatuck South Main Street  
SR 710 0.310.50 Route 8 / Union Street (SR 723) in NaugatuckRoute 8 in Naugatuck North Main Street  
SR 711 0.811.30 Penny Avenue (SR 730 and SR 743) in TrumbullRoute 108 in Trumbull Huntington Turnpike  
SR 712 0.240.39 Route 110 in SheltonRoute 34 in Derby Bridge Street  
SR 713 0.270.43 Route 15 in FairfieldRoute 59 in Fairfield Congress Street  
SR 714 0.240.39 Huntington Street in SheltonRoute 108 in Shelton Bridgeport Avenue, Center Street  
SR 715 0.510.82 I-91 in North HavenRoute 103 in North Haven Universal Drive, Montowese Avenue  
SR 717 1.151.85 Route 10 / Whitney Avenue (SR 707) in HamdenUS 5 in North Haven Dixwell Avenue  
SR 718 0.270.43 US 1 in GuilfordI-95 in Guilford Goose Lane  
SR 719 2.023.25 Route 123 in NorwalkUS 7 in Norwalk Main Avenue  
SR 720 0.260.42 Hartford Turnpike in North HavenUS 5 in North Haven Devine Street  
SR 721 1.852.98 Route 67 in SeymourOld Turnpike in Beacon Falls North Street, North Main Street, South Main Street  
SR 722 0.370.60 US 1 in BridgeportRoute 8 in Bridgeport Chopsey Hill Road  
SR 723 0.160.26 North Main Street (SR 710) in NaugatuckNorth Main Street (SR 710) in Naugatuck Union Street, Golden Court  
SR 725 0.080.13 Route 22 in North HavenRoute 15 in North Haven Hartford Turnpike  
SR 816 1.72.7 Route 34 in NewtownRiver Rd No. 1 in Southbury Original Route 6 surface routing, before I84.

See also

References

  1. 1 2 "Connecticut State Numbered Routes and Roads" (PDF). Newington: Connecticut Department of Transportation. December 31, 2019. pp. 315–377. Retrieved July 14, 2020.
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