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List of longest state highways in the United States

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In the United States, each state maintains its own system of state highways. This is a list of the longest state highways in each state. As of 2007, the longest state highway in the nation is Montana Highway 200, which is 706.624 miles (1,137.201 km) long.

Longest state highways by state
State Highway Miles km References
Alabama State Route 3 386.449 621.929 [1]
Alaska Route 1 545.92 878.57 [2]
Arizona State Route 87 272.66 438.80 [3]
Arkansas Highway 7 296.01 476.38 [4]
California State Route 1 655.84 1,055.47 [5]
Colorado State Highway 14 236.92 381.29 [6]
Connecticut Route 15 83.53 134.43 [7]
Delaware Route 1 103.02 165.79 [8]
D.C. Route 295 4.29 6.90 [9][a]
Florida State Road 5 536.724 863.774 [10]
Georgia State Route 11 374 602 [11]
Hawaii Route 11 122.3 196.8 [12]
Idaho State Highway 75 170.666 274.660 [13]
Illinois Route 1[disputed – discuss] 336 541 [14]
Indiana State Road 37 229.4 369.2 [15]
Iowa Highway 3 328 528 [16]
Kansas K-4 367 591 [citation needed]
Kentucky Route 80 464.936 748.242 [17]
Louisiana Highway 1 436.20 702.00 [18]
Maine State Route 11 401.2 645.7 [19]
Maryland Route 2 79.24 127.52 [20]
Massachusetts Route 28 151.93 244.51 [21]
Michigan M-28 290.373 467.310 [22]
Minnesota State Highway 1 345.954 556.759 [23]
Mississippi Highway 15 328 528 [24]
Missouri Route 5 355 571 [citation needed]
Montana Highway 200 706.624 1,137.201 [25]
Nebraska Highway 92 489.08 787.10 [26]
Nevada State Route 318 110.775 178.275 [27]
New Hampshire Route 16 149.75 241.00 [28]
New Jersey Route 47 75.19 121.01 [29][b]
New Mexico State Road 120 119.9 193.0 [30]
New York State Route 17 396.84 638.65 [31]
North Carolina Highway 24 284 457 [32]
North Dakota Highway 200 420 680 [33]
Ohio State Route 7 292.20 470.25 [34]
Oklahoma State Highway 3 615.0 989.7 [35][c]
Oregon Route 140[disputed – discuss] 237.01 381.43 [36]
Pennsylvania Route 18 205 330 [37]
Rhode Island Route 114 45.70 73.55 [38]
South Carolina Highway 9 257 414 [39]
South Dakota Highway 20 432 695 [40]
Tennessee State Route 1 538.8 867.1 [citation needed]
Texas State Highway 16 541.8 871.9 [41]
Utah State Route 24 160.243 257.886 [42]
Vermont Route 100 216.55 348.50 [43]
Virginia State Route 40 227.68 366.42 [44]
Washington State Route 20 436.13 701.88 [45]
West Virginia Route 20 262.1 421.8 [46]
Wisconsin Highway 35 412.15 663.29 [47]
Wyoming Highway 789 404 650 [48]

Notes

  1. ^ DC-295 is the only non-national route in the district.
  2. ^ NJ 47 is New Jersey's longest signed state highway, but NJ 444 (the unsigned designation for the Garden State Parkway) is longer at 172.4 miles (277.5 km)
  3. ^ OK-3's length was computed using OK-3E, the older (and longer) of its two forks.

See also

References

  1. ^ Alabama Department of Transportation. County Milepost Maps (PDF) (Map). Montgomery: Alabama Department of Transportation. Archived from the original (PDF) on June 25, 2008. Retrieved September 2007. {{cite map}}: Check date values in: |access-date= (help); Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  2. ^ Alaska Department of Transportation and Public Facilities (April 25, 2006). "Central Region General Log" (PDF). Juneau: Alaska Department of Transportation and Public Facilities. Routes 110000 (Sterling Highway), 130000 (Seward Highway), 134150 (Ingra Street), 134600 (6th Avenue), 134440 (5th Avenue), and 135000 (Glenn Highway).[dead link‍]
    Alaska Department of Transportation and Public Facilities (April 25, 2006). "Northern Region General Log" (PDF). Juneau: Alaska Department of Transportation and Public Facilities. Routes 135000 (Glenn Highway), 190000 (Richardson Highway), and 230000 (Tok Cut-Off Highway).[dead link‍]
  3. ^ Arizona Department of Transportation. "2006 State Highway System Log" (PDF). Phoenix: Arizona Department of Transportation. Archived from the original (PDF) on June 25, 2008. Retrieved September 6, 2008.[page needed]
  4. ^ Planning and Research Division (2010). "Arkansas Road Log Database" (Database). Arkansas State Highway and Transportation Department. Retrieved June 9, 2011.
  5. ^ California Department of Transportation. Truck Network Map (Map). Sacramento: California Department of Transportation. Retrieved March 1, 2014.
  6. ^ Colorado Department of Transportation. "Segment list for SH 14". Denver: Colorado Department of Transportation. Retrieved May 12, 2007.[dead link‍]
  7. ^ Connecticut Department of Transportation. "Connecticut State Numbered Routes and Roads" (PDF). Hartford: Connecticut Department of Transportation. Retrieved October 30, 2007.
  8. ^ Delaware Department of Transportation (2006). "Traffic Count and Mileage Report" (PDF). Dover: Delaware Department of Transportation.[page needed]
  9. ^ "National Highway Planning Network GIS data". Federal Highway Administration. August 2005. Archived from the original on August 23, 2007. Retrieved July 9, 2007.
  10. ^ Florida Department of Transportation. "Straight Line Diagrams". Florida Department of Transportation. Retrieved March 2014. {{cite web}}: Check date values in: |access-date= (help)
  11. ^ Georgia Department of Transportation. "400 reports" (PDF). Atlanta: Georgia Department of Transportation. Archived from the original (PDF) on September 26, 2007. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  12. ^ Voss, Oscar. "Big Island Route List". Hawaii Highways. Retrieved October 22, 2007.[self-published source]
  13. ^ Idaho Transportation Department. "Idaho Milepoint Log". Boise: Idaho Transportation Department.
  14. ^ Rand McNally (2004). The Road Atlas United States, Canada and Mexico (Map). Chicago: Rand McNally.[page needed]
  15. ^ "Length of Indiana Route 37: Southern Segment" (Map). Google Maps. Retrieved August 12, 2009.
    "Length of Indiana Route 37: Northern Segment" (Map). Google Maps. Retrieved August 12, 2009.
  16. ^ "Table of Active State Highways". Iowa Highways. Retrieved March 1, 2014.[self-published source]
  17. ^ Division of Planning. "Highway Information System Official Milepoint Route Log Extract". Kentucky Transportation Cabinet. Retrieved April 7, 2007.
  18. ^ "Louisiana State Highway Log". SoutheastRoads.com. Retrieved March 1, 2014.[self-published source]
  19. ^ "Maine State Route 11". Floodgap Roadgap's RoadsAroundME. Retrieved July 21, 2009.[self-published source]
  20. ^ Maryland State Highway Administration. "Highway Location Reference". Annapolis: Maryland State Highway Administration. Archived from the original on May 6, 2008. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help), 2005
  21. ^ Massachusetts Office of Transportation Planning. "2005 Road Inventory". Executive Office of Transportation.
  22. ^ Michigan Department of Transportation (2021). Next Generation PR Finder (Map). Michigan Department of Transportation. Retrieved October 11, 2021.
  23. ^ Minnesota Department of Transportation. "Statewide Trunk Logpoint Listing" (PDF). St. Paul: Minnesota Department of Transportation.
  24. ^ "Mississippi Route index: MS 15".[self-published source]
  25. ^ Montana Department of Transportation. Official 2007–2008 Montana Highway Travel Map (PDF) (Map). Helena: Montana Department of Transportation. Archived from the original (PDF) on July 28, 2007. Retrieved September 9, 2007. {{cite map}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  26. ^ Nebraska Department of Roads. Nebraska Highway Reference Log Book (PDF). Lincoln: Nebraska Department of Roads. Retrieved February 25, 2009.
  27. ^ Nevada Department of Transportation. Nevada State Maintained Highways, Descriptions, Index and Maps. Nevada Department of Transportation. Retrieved March 1, 2014.
  28. ^ New Hampshire Department of Transportation. "Route Logs". New Hampshire Department of Transportation. Archived from the original on July 26, 2011. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help); Unknown parameter |registration= ignored (|url-access= suggested) (help)
  29. ^ New Jersey Department of Transportation. "Route 47 Straight Line Diagram" (PDF). New Jersey Department of Transportation. Retrieved April 9, 2007.
  30. ^ New Mexico Department of Transportation. New Mexico Department of Transportation State Route Log (PDF). Santa Fe: New Mexico Department of Transportation. Archived from the original (PDF) on October 29, 2005. Retrieved October 25, 2008. {{cite book}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)[page needed]
  31. ^ New York State Department of Transportation (July 25, 2008). 2007 Traffic Data Report for New York State (PDF). Albany: New York State Department of Transportation. Retrieved July 17, 2009.
  32. ^ "N.C. 24". NCRoads.com. Archived from the original on September 25, 2008. {{cite web}}: Unknown parameter |deadurl= ignored (|url-status= suggested) (help)
  33. ^ Mileage retrieved from North Dakota Highways 101+ unless otherwise noted.[self-published source]
  34. ^ Transportation System Development (May 13, 2008). "RI82B: Centerline Miles, Lane Miles, and VMT by Route and County". Ohio Department of Transportation. Retrieved August 4, 2009.
  35. ^ "SH-3—Colorado to Seiling" (Map). Google Maps. Retrieved April 27, 2014.
    "SH-3—Seiling to Southwest Oklahoma City" (Map). Google Maps. Retrieved April 27, 2014.
    "SH-3—Overlap with I-240" (Map). Google Maps. Retrieved April 27, 2014.
    "SH-3—Overlap with I-40" (Map). Google Maps. Retrieved May 13, 2014.
    "SH-3E" (Map). Google Maps. Retrieved May 13, 2014.
    "SH-3—Ada to Idabel" (Map). Google Maps. Retrieved May 23, 2014.
    "SH-3—Idabel to Arkansas" (Map). Google Maps. Retrieved May 23, 2014.
  36. ^ Oregon Department of Transportation. "Public Road Inventory". Oregon Department of Transportation. Retrieved March 2008. {{cite web}}: Check date values in: |access-date= (help) (primarily the Digital Video Log)
  37. ^ Calculated using DeLorme Street Atlas USA software
  38. ^ "Overview map of RI 114" (Map). Google Maps. Retrieved December 20, 2011.
  39. ^ "Length of South Carolina Highway 9" (Map). Google Maps. Retrieved August 11, 2009.
  40. ^ "Length of South Dakota Route 20: Western Segment" (Map). Google Maps. Retrieved August 11, 2009.
    "Length of South Dakota Route 20: Eastern Segment" (Map). Google Maps. Retrieved August 11, 2009.
  41. ^ Texas Department of Transportation. "State Highway, Loop and Spur Facts". Texas Department of Transportation. Retrieved July 20, 2009.
  42. ^ Utah Department of Transportation. "Highway Reference". Utah Department of Transportation. Retrieved January 27, 2014.
  43. ^ Vermont Agency of Transportation. "2004 (Route Log) AADTs: State Highways" (PDF). Vermont Agency of Transportation. Archived from the original (PDF) on October 27, 2007. Retrieved October 28, 2007.
  44. ^ Virginia Department of Transportation (October 2006). "DRAFT Roadway Network" (GIS data). Virginia Department of Transportation.
  45. ^ Washington State Department of Transportation (2013). State Highway Log: Planning Report 2013, SR 2 to SR 971 (PDF). Olympia: Washington State Department of Transportation. pp. 524–585.
  46. ^ Distance calculated using Microsoft MapPoint mapping software.
  47. ^ Wisconsin Department of Transportation. "Wisconsin Highway Trivia". Wisconsin Department of Transportation. Retrieved October 2007. {{cite web}}: Check date values in: |access-date= (help)
  48. ^ "Length of Wyoming 789" (Map). Google Maps. Retrieved March 1, 2014.
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