List of State Roads in Connecticut

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
[[File:|x25px|alt=|link=]] SR 500 0.510.82 I-84 / US 6 / Route 2 in East HartfordGovernor Street in East Hartford — ——  
[[File:|x25px|alt=|link=]] SR 501 0.771.24 I-84 / US 6 in West HartfordPark Road in West Hartford Trout Brook Connector ——  
[[File:|x25px|alt=|link=]] SR 502 6.3110.15 Route 2 in East HartfordUS 6 / US 44 in Manchester East River Drive Extended, Silver Lane, Spencer Street ——  
[[File:|x25px|alt=|link=]] SR 503 0.681.09 Sisson Avenue in HartfordI-84 / US 6 in Hartford Sisson Avenue Connector ——  
[[File:|x25px|alt=|link=]] SR 504 0.701.13 Flatbush Avenue in HartfordI-84 / US 6 in Hartford — ——  
[[File:|x25px|alt=|link=]] SR 505 0.530.85 Route 175 in NewingtonRoute 9 in Newington Fenn Road ——  
[[File:|x25px|alt=|link=]] SR 508 1.822.93 Route 4 in FarmingtonI-84 / US 6 in Farmington — ——  
[[File:|x25px|alt=|link=]] SR 509 0.510.82 Route 322 in SouthingtonRoute 10 in Southington Clark Street ——  
[[File:|x25px|alt=|link=]] SR 510 2.554.10 US 5 in East WindsorUS 5 in Enfield Main Street, Depot Hill Road ——  
[[File:|x25px|alt=|link=]] SR 511 0.380.61 Route 10 in PlainvilleRoute 72 in Plainville Hooker Street ——  
[[File:|x25px|alt=|link=]] SR 513 0.671.08 Route 75 in SuffieldEnd state maintenance Bridge Street ——  
[[File:|x25px|alt=|link=]] SR 514 0.200.32 US 5 in EnfieldRoute 190 / Pearl Street in Enfield Franklin Street ——  
[[File:|x25px|alt=|link=]] SR 515 0.200.32 Pearl Street in EnfieldUS 5 / Route 190 in Enfield Frew Terrace ——  
[[File:|x25px|alt=|link=]] SR 516 0.180.29 Route 2 in East HartfordMain Street (SR 517) in East Hartford Willow Street Extended ——  
[[File:|x25px|alt=|link=]] SR 517 1.242.00 Route 2 in East HartfordUS 5 / Route 15 in East Hartford Main Street, High Street ——  
[[File:|x25px|alt=|link=]] SR 518 0.450.72 Silver Lane (SR 502) in East HartfordI-84 / US 6 in East Hartford Roberts Street ——  
[[File:|x25px|alt=|link=]] SR 524 0.310.50 Route 3 in CromwellRoute 372 in Cromwell Berlin Road ——  
[[File:|x25px|alt=|link=]] SR 526 1.662.67 Route 187 in SuffieldRoute 168 in Suffield Sheldon Street ——  
[[File:|x25px|alt=|link=]] SR 527 2.053.30 Route 30 in VernonRoute 74 / Route 83 in Vernon West Street ——  
[[File:|x25px|alt=|link=]] SR 528 2.594.17 Route 190 in SomersRoute 83 in Somers Turnpike Road ——  
[[File:|x25px|alt=|link=]] SR 529 1.332.14 Route 173 in West HartfordNewington Avenue in Hartford New Britain Avenue ——  
[[File:|x25px|alt=|link=]] SR 530 0.580.93 Wethersfield Avenue in HartfordBrainard Road in Hartford Airport Road ——  
[[File:|x25px|alt=|link=]] SR 531 1.392.24 Route 4 in FarmingtonI-84 / US 6 in Farmington South Road, Colt Highway ——  
[[File:|x25px|alt=|link=]] SR 532 0.440.71 Route 177 in PlainvilleRoute 10 in Southington Washington Street, Birch Street ——  
[[File:|x25px|alt=|link=]] SR 533 4.036.49 US 6 / US 44 / Route 85 in BoltonRoute 30 in Vernon Cider Mill Road, Tunnel Road ——  
[[File:|x25px|alt=|link=]] SR 534 4.457.16 Route 83 in ManchesterRoute 85 in Bolton Charter Oak Street, Highland Street ——  
[[File:|x25px|alt=|link=]] SR 535 0.210.34 Route 71 in West HartfordI-84 / US 6 in West Hartford Ridgewood Road ——  
[[File:|x25px|alt=|link=]] SR 536 1.532.46 Route 372 in PlainvilleRoute 372 in Plainville Pine Street, Woodford Avenue, Crooked Street ——  
[[File:|x25px|alt=|link=]] SR 539 3.705.95 Route 20 in HartlandRoute 189 in Granby Mountain Road ——  
[[File:|x25px|alt=|link=]] SR 540 1.432.30 Route 189 in East GranbyRoute 187 in East Granby Hatchett Hill Road ——  
[[File:|x25px|alt=|link=]] SR 541 0.821.32 Tunnel Road (SR 533) in VernonRoute 30 in Vernon South Frontage Road, Bolton Road ——  
[[File:|x25px|alt=|link=]] SR 542 0.300.48 Tunnel Road (SR 533) in VernonBolton Road (SR 541) in Vernon Ferguson Road ——  
[[File:|x25px|alt=|link=]] SR 543 0.380.61 Route 314 in WethersfieldMaple Avenue at Wethersfield–Hartford town line Berlin Turnpike ——  
[[File:|x25px|alt=|link=]] SR 545 0.150.24 Route 66 in MiddletownRoute 9 / Route 17 in Middletown Washington Street ——  
[[File:|x25px|alt=|link=]] SR 549 1.141.83 US 6 in FarmingtonSouth Road (SR 531) in Farmington Birdseye Road ——  
[[File:|x25px|alt=|link=]] SR 552 0.230.37 US 6 in FarmingtonRoute 10 in Farmington Scott Swamp Road ——  
[[File:|x25px|alt=|link=]] SR 555 1.302.09 Route 372 in New BritainMain Street in New Britain West Main Street ——  
[[File:|x25px|alt=|link=]] SR 565 1.732.78 Route 179 in CantonUS 44 in Canton Maple Avenue ——  
[[File:|x25px|alt=|link=]] SR 569 0.170.27 I-91 in Windsor LocksRoute 159 in Windsor Locks Lawnacre Road ——  
[[File:|x25px|alt=|link=]] SR 571 1.522.45 Route 71A / Route 372 in BerlinRoute 9 in Berlin — ——  
[[File:|x25px|alt=|link=]] SR 572 0.480.77 Route 9 in BerlinUS 5 / Route 15 in Berlin Frontage Road, Worthington Ridge Road ——  
[[File:|x25px|alt=|link=]] SR 585 1.252.01 Route 168 in SuffieldPoint Grove Road at the Massachusetts state line in Suffield Babbs Road ——  
[[File:|x25px|alt=|link=]] SR 597 0.580.93 Route 10 in SouthingtonI-84 in Southington — ——  
[[File:|x25px|alt=|link=]] SR 598 0.761.22 Pulaski Circle in HartfordI-91 in Hartford Whitehead Highway ——  
[[File:|x25px|alt=|link=]] SR 600 0.671.08 Route 138 in LisbonRoute 169 in Lisbon Kinsman Hill Road ——  
[[File:|x25px|alt=|link=]] SR 602 3.285.28 Route 154 in EssexRoute 80 in Deep River Main Street, Warsaw Street ——  
[[File:|x25px|alt=|link=]] SR 603 3.545.70 Route 85 in HebronRoute 316 in Andover London Road, Boston Hill Road ——  
[[File:|x25px|alt=|link=]] SR 604 0.801.29 Route 153 in EssexMain Street (SR 602) in Essex Westbrook Road ——  
[[File:|x25px|alt=|link=]] SR 605 0.300.48 Route 165 in PrestonRoute 164 in Preston Old Shetucket Turnpike ——  
[[File:|x25px|alt=|link=]] SR 607 2.544.09 Route 12 in KillinglyUS 6 in Killingly Westcott Road ——  
[[File:|x25px|alt=|link=]] SR 608 4.326.95 Norwich Avenue (SR 616) / McGrath Lane in LebanonFitchville Road at Bozrah–Norwich town line Norwich Avenue, Fitchville Road ——  
[[File:|x25px|alt=|link=]] SR 609 0.971.56 Route 151 in East HaddamRoute 149 in East Haddam Leesville Road ——  
[[File:|x25px|alt=|link=]] SR 610 2.163.48 Route 32 in FranklinRoute 207 in Franklin Baltic Road ——  
[[File:|x25px|alt=|link=]] SR 612 0.140.23 Route 163 in BozrahFitchville Road (SR 608) in Bozrah Haughton Road ——  
[[File:|x25px|alt=|link=]] SR 614 2.634.23 US 1 in GrotonRoute 184 in Groton Allyn Street, Mystic Street, Cow Hill Road ——  
[[File:|x25px|alt=|link=]] SR 615 1.322.12 Route 2 in ColchesterRoute 85 in Colchester Old Hartford Road, Broadway ——  
[[File:|x25px|alt=|link=]] SR 616 6.8310.99 Route 85 in ColchesterRoad end in Lebanon Norwich Avenue, McGrath Lane ——  
[[File:|x25px|alt=|link=]] SR 617 0.851.37 I-95 / Route 2 in North StoningtonRoute 49 in North Stonington — ——  
[[File:|x25px|alt=|link=]] SR 618 0.691.11 Westcott Road (SR 607) in KillinglyUS 6 in Killingly North Frontage Road ——  
[[File:|x25px|alt=|link=]] SR 619 0.490.79 I-395 in KillinglyWestcott Road (SR 607) in Killingly Gauthier Avenue ——  
[[File:|x25px|alt=|link=]] SR 620 0.310.50 Route 171 in UnionEnd state maintenance Mashapaug Road ——  
[[File:|x25px|alt=|link=]] SR 621 0.100.16 Route 9 / Route 153 in EssexRoute 154 in Essex — ——  
[[File:|x25px|alt=|link=]] SR 623 1.231.98 One-way frontage road along southbound I-95 in New London and Waterford North Frontage Road, Parkway North ——  
[[File:|x25px|alt=|link=]] SR 624 0.600.97 I-95 in WaterfordUS 1 in New London Parkway South, South Frontage Road ——  
[[File:|x25px|alt=|link=]] SR 625 0.991.59 US 1 in WestbrookRoute 145 in Westbrook Grove Beach Road ——  
[[File:|x25px|alt=|link=]] SR 626 0.250.40 Route 216 / Route 184 in North StoningtonRhode Island state line Providence New London Turnpike ——  
[[File:|x25px|alt=|link=]] SR 627 0.911.46 Route 201 in North StoningtonRoute 2 in North Stonington Mystic Road ——  
[[File:|x25px|alt=|link=]] SR 628 0.330.53 US 1 in Old SaybrookEnd state maintenance Spring Brook Road ——  
[[File:|x25px|alt=|link=]] SR 629 0.260.42 Route 138 in GriswoldI-395 / Route 164 in Griswold — ——  
[[File:|x25px|alt=|link=]] SR 630 0.360.58 Route 164 in GriswoldRoute 138 / I-395 in Griswold — ——  
[[File:|x25px|alt=|link=]] SR 632 0.801.29 Route 195 in MansfieldUS 6 / Mansfield City Road in Mansfield North Frontage Road ——  
[[File:|x25px|alt=|link=]] SR 633 0.791.27 Mansfield City Road in MansfieldUS 6 / Route 195 in Mansfield South Frontage Road ——  
[[File:|x25px|alt=|link=]] SR 635 0.580.93 Huntington Street (SR 641) in New LondonBriggs Street (SR 638) in New London Williams Street ——  
[[File:|x25px|alt=|link=]] SR 636 0.641.03 Norwood Avenue in New LondonRoute 32 in New London Briggs Street, Briggs-Mohegan Connector, Mohegan Avenue ——  
[[File:|x25px|alt=|link=]] SR 637 0.510.82 Route 11 in ColchesterRoute 354 in Colchester Lake Hayward Road ——  
[[File:|x25px|alt=|link=]] 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 ——  
[[File:|x25px|alt=|link=]] SR 639 0.771.24 US 1 / Jefferson Avenue in New LondonUS 1 in New London Colman Street —— Signed as southbound US 1
[[File:|x25px|alt=|link=]] SR 640 0.140.23 Route 74 in WillingtonRoute 32 in Willington Phelps Way ——  
[[File:|x25px|alt=|link=]] 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 ——  
[[File:|x25px|alt=|link=]] SR 642 2.654.26 Route 2 / Route 32 in NorwichRoute 2 / Route 32 / Route 169 in Norwich Town Street, Washington Street ——  
[[File:|x25px|alt=|link=]] SR 643 0.130.21 US 1 in New LondonRoute 213 in New London Lee Avenue ——  
[[File:|x25px|alt=|link=]] SR 644 0.751.21 Route 97 in PomfretUS 44 / Route 169 in Pomfret Murdock Road ——  
[[File:|x25px|alt=|link=]] SR 646 0.180.29 Route 82 in NorwichRoute 82 in Norwich North Thames Street ——  
[[File:|x25px|alt=|link=]] SR 647 0.240.39 I-395 in PlainfieldRoute 12 in Plainfield Lathrop Road ——  
[[File:|x25px|alt=|link=]] SR 649 2.694.33 Route 349 in GrotonUS 1 in Groton Rainville Avenue, Poquonnock Road, High Rock Road, Tower Avenue, South Road ——  
[[File:|x25px|alt=|link=]] SR 654 0.280.45 Route 27 in StoningtonI-95 in Stonington — ——  
[[File:|x25px|alt=|link=]] SR 660 1.642.64 Route 97 in NorwichRoute 138 in Sprague Bridge Street ——  
[[File:|x25px|alt=|link=]] SR 661 0.110.18 Route 32 in WindhamRoute 66 in Windham Thread City Crossing (Frog Bridge) ——  
[[File:|x25px|alt=|link=]] SR 664 5.709.17 Route 14 in PlainfieldUS 6 in Killingly Lake Street, Snake Meadow Road ——  
[[File:|x25px|alt=|link=]] SR 668 2.003.22 Route 169 in CanterburyRoute 12 in Canterbury Butts Bridge Road ——  
[[File:|x25px|alt=|link=]] SR 680 0.991.59 Route 2 in LedyardRoute 2 / Wintechog Hill Road in North Stonington MGM Drive, Foxwoods Boulevard ——  
[[File:|x25px|alt=|link=]] SR 693 1.412.27 Route 32 in WaterfordI-395 in Montville Montville Connector ——  
[[File:|x25px|alt=|link=]] SR 695 4.497.23 I-395 in PlainfieldUS 6 in Killingly Connecticut Turnpike ——  
[[File:|x25px|alt=|link=]] SR 700 1.732.78 Route 130 / Water Street in BridgeportRoute 130 / State Street Extended in Bridgeport Fairfield Avenue —— Westbound couplet of Route 130
[[File:|x25px|alt=|link=]] SR 702 0.811.30 US 5 in WallingfordI-91 in Wallingford Wharton Brook Connector ——  
[[File:|x25px|alt=|link=]] SR 703 0.200.32 Route 63 in BethanyRoute 42 in Bethany Litchfield Turnpike ——  
[[File:|x25px|alt=|link=]] SR 705 2.634.23 Route 162 in West HavenRoute 162 in West Haven Ocean Avenue, Platt Avenue ——  
[[File:|x25px|alt=|link=]] SR 706 0.821.32 Howe Street in New HavenRoute 10 in New Haven North Frontage Road —— Westbound couplet of Route 34
[[File:|x25px|alt=|link=]] SR 707 3.625.83 Whitney Avenue at New Haven–Hamden town lineRoute 10 / Dixwell Avenue (SR 717) in Hamden Whitney Avenue ——  
[[File:|x25px|alt=|link=]] SR 708 0.320.51 Old Gate Lane in MilfordI-95 / Woodmont Road in Milford Old Gate Lane ——  
[[File:|x25px|alt=|link=]] SR 709 0.270.43 Route 63 in NaugatuckRoute 8 in Naugatuck South Main Street ——  
[[File:|x25px|alt=|link=]] SR 710 0.310.50 Route 8 / Union Street (SR 723) in NaugatuckRoute 8 in Naugatuck North Main Street ——  
[[File:|x25px|alt=|link=]] SR 711 0.811.30 Penny Avenue (SR 730 and SR 743) in TrumbullRoute 108 in Trumbull Huntington Turnpike ——  
[[File:|x25px|alt=|link=]] SR 712 0.240.39 Route 110 in SheltonRoute 34 in Derby Bridge Street ——  
[[File:|x25px|alt=|link=]] SR 713 0.270.43 Route 15 in FairfieldRoute 59 in Fairfield Congress Street ——  
[[File:|x25px|alt=|link=]] SR 714 0.240.39 Huntington Street in SheltonRoute 108 in Shelton Bridgeport Avenue, Center Street ——  
[[File:|x25px|alt=|link=]] SR 715 0.510.82 I-91 in North HavenRoute 103 in North Haven Universal Drive, Montowese Avenue ——  
[[File:|x25px|alt=|link=]] SR 717 1.151.85 Route 10 / Whitney Avenue (SR 707) in HamdenUS 5 in North Haven Dixwell Avenue ——  
[[File:|x25px|alt=|link=]] SR 718 0.270.43 US 1 in GuilfordI-95 in Guilford Goose Lane ——  
[[File:|x25px|alt=|link=]] SR 719 2.023.25 Route 123 in NorwalkUS 7 in Norwalk Main Avenue ——  
[[File:|x25px|alt=|link=]] SR 720 0.260.42 Hartford Turnpike in North HavenUS 5 in North Haven Devine Street ——  
[[File:|x25px|alt=|link=]] SR 721 1.852.98 Route 67 in SeymourOld Turnpike in Beacon Falls North Street, North Main Street, South Main Street ——  
[[File:|x25px|alt=|link=]] SR 722 0.370.60 US 1 in BridgeportRoute 8 in Bridgeport Chopsey Hill Road ——  
[[File:|x25px|alt=|link=]] SR 723 0.160.26 North Main Street (SR 710) in NaugatuckNorth Main Street (SR 710) in Naugatuck Union Street, Golden Court ——  
[[File:|x25px|alt=|link=]] SR 725 0.080.13 Route 22 in North HavenRoute 15 in North Haven Hartford Turnpike ——  
[[File:|x25px|alt=|link=]] SR 816 1.72.7 Route 34 in NewtownRiver Rd No. 1 in Southbury —— Original Route 6 surface routing, before I84.
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
  • Routes in Connecticut

See also
  •  Connecticut portal

References
  1. "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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