There are 19 Interstate Highways—8 primary and 11 auxiliary—that exist entirely or partially in the U.S. state of North Carolina. As of January 2020, the state had a total of 1,410 miles (2,270 km) of Interstates and 70 miles (110 km) of Interstate business routes, all maintained by the North Carolina Department of Transportation (NCDOT).[1][2]

Primary Interstates

Number Length (mi)[3] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-26 53.67 86.37 I-26/US 23 at the Tennessee state line I-26 at the South Carolina state line 01966-01-011966[4] current Gap in Asheville, signed as Future I-26
I-40 419.40 674.96 I-40 at the Tennessee state line US 117/NC 132 in Wilmington 01958-01-011958[5] current

Future I-42
I-40/US 70 near Garner US 70 in Morehead City proposed Future designation along US 70[6]
I-73 76.52 123.15 US 220 near Ellerbe US 220 in Summerfield 01997-01-011997[7] current One segment currently open between Greensboro and Ellerbe; scheduled to be extended to Virginia and South Carolina borders
I-74 69.61 112.03 I-77 at the Virginia state line US 74/NC 41 near Lumberton 01997-01-011997[7] current Three open segments in Mount Airy, Piedmont Triad and Laurinburg areas; will be continuous once completed
I-77 102.31 164.65 I-77/US 21 at the South Carolina state line I-77 at the Virginia state line 01965-01-011965[8] current
I-85 231.23 372.13 I-85 at the South Carolina state line I-85 at the Virginia state line 01958-01-011958[9] current
I-87 12.6 20.3 I-40/US 64 in Raleigh US 64/US 264 in Wendell 02017-01-012017 current Future designated along US 64 and US 17 to Norfolk, Virginia[6]
I-95 181.71 292.43 I-95 at the South Carolina state line I-95 at the Virginia state line 01958-01-011958[10] current
  •       Proposed and unbuilt

Auxiliary Interstates

Number Length (mi)[11] Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-140 25.40 40.88 US 17 near Winnabow I-40/NC 140 in Murraysville 02008-01-012008[12] current
I-240 9.14 14.71 I-26/I-40/US 74 in Asheville I-40/US 74A in Asheville 01980-01-011980[13] current
I-277 4.41 7.10 I-77/US 21/US 74 in Charlotte I-77/US 21/NC 16 in Charlotte 01981-01-011981 current
I-285 23.00 37.01 I-85/US 29/US 52/US 70 in Lexington I-40/US 52/NC 8 in Winston-Salem 02018-01-012018[14] current Ground mounted signs November 2018 along US 52
I-295 22.00 35.41 US 401 in Fayetteville I-95/US 13 in Eastover 02019-01-012019[15] current Eventually to extend to I-95 near Parkton by 2025
I-440 16.40 26.39 I-40/US 1/US 64 in Raleigh I-40/US 64 in Raleigh 01991-01-011991[16] current
I-485 67.60 108.79 Charlotte 01988-01-011988[17] current
I-495 4.09 6.58 I-440/US 64/US 64 Bus. in Raleigh I-540/US 64/US 264 in Knightdale 02013-01-012013[18] 02017-01-012017 Was originally planned to continue along US 64 to Rocky Mount; replaced by I-87
I-540 27.30 43.94 I-40/NC 540 near Durham I-87/US 64/US 264 in Knightdale 01997-01-011997[19] current Northern (untolled) half of the Raleigh Outer Loop; partially completed (toll) southern half designated NC 540

Future I-587
US 64/US 264 in Zebulon US 264 in Greenville proposed Future designation along US 264[20]
I-785 7.00 11.27 I-40/I-85 in Greensboro US 29 in Greensboro 02013-01-012013[21] current Future designation along US 29 to Danville, Virginia
I-795 25.40 40.88 US 70 in Goldsboro I-95/US 264 in Wilson 02007-01-012007[22] current Eventually to extend to I-40 near Faison
I-840 5.77 9.29 I-40/I-73/US 421 in Greensboro I-40 in Greensboro 02011-01-012011[23] current Northern half of Greensboro Urban Loop; two short open sections at the eastern and western termini
  •       Former
  •       Proposed and unbuilt

Business routes

Number Length (mi) Length (km) Southern or western terminus Northern or eastern terminus Formed Removed Notes
I-40 BL 18.50 29.77 I-40/US 421 in Winston-Salem I-40/US 421 in Colfax 01992-01-011992[24] 02020-01-012020 Was a freeway-grade business loop
I-40 BL 16.40 26.39 I-40/US 1/US 64 in Raleigh I-40/US 64/US 70/US 401 in Raleigh 01991-01-011991[25] Was a freeway-grade, unsigned, designated business loop along the northern half of the Raleigh beltway; replaced by I-440
I-85 BL 29.80 47.96 I-85/US 29/US 52/US 70 in Lexington I-85/US 29/US 70 in Greensboro 01984-01-011984 current Expressway-grade business loop
I-95 BL 16.00 25.75 I-95 in Hope Mills I-95 in Eastover 01978-01-011978[26] current Boulevard-grade business loop
I-95 BL 44.60 71.78 I-95/US 301 in Kenly I-95 near Battleboro 01978-01-011978[26] 01986-01-011986[27] Was a boulevard-grade business loop
  •       Former

See also

References

  1. ^ a b "2019 Highway and Road Mileage" (PDF). Connect NCDOT. North Carolina Department of Transportation. June 2020. Retrieved May 15, 2022.
  2. ^ Price, Jeff (May 6, 2019). "Table 3: Interstate Routes in Each of the 50 States, District of Columbia, and Puerto Rico". Route Log and Finder List. Federal Highway Administration. Retrieved March 13, 2021.
  3. ^ Price, Jeff (May 6, 2019). "Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2018". Route Log and Finder List. Federal Highway Administration. Retrieved March 13, 2021.
  4. ^ North Carolina Department of Transportation (June 21, 2008). "I-26 Fact Sheet" (PDF). North Carolina Department of Transportation. Archived from the original (PDF) on June 21, 2008. Retrieved June 20, 2014.
  5. ^ North Carolina Department of Transportation (June 21, 2008). "I-40 Fact Sheet" (PDF). North Carolina Department of Transportation. Archived from the original (PDF) on June 21, 2008. Retrieved June 20, 2014.
  6. ^ a b North Carolina Department of Transportation (May 25, 2016). "North Carolina Gains Names for Two New Interstate Designations" (Press release). North Carolina Department of Transportation. Archived from the original on June 16, 2016. Retrieved May 25, 2016.
  7. ^ a b Division of Highways (September 20, 1996). "I-73/I-74 (1996-09-20)" (PDF). North Carolina Department of Transportation. Retrieved July 4, 2013.
  8. ^ North Carolina Department of Transportation (June 21, 2008). "I-77 Fact Sheet" (PDF). North Carolina Department of Transportation. Archived from the original (PDF) on June 21, 2008. Retrieved June 20, 2014.
  9. ^ North Carolina Department of Transportation (June 21, 2008). "I-85 Fact Sheet" (PDF). North Carolina Department of Transportation. Archived from the original (PDF) on June 21, 2008. Retrieved June 20, 2014.
  10. ^ North Carolina Department of Transportation (June 21, 2008). "I-95 Fact Sheet" (PDF). North Carolina Department of Transportation. Archived from the original (PDF) on June 21, 2008. Retrieved June 20, 2014.
  11. ^ Price, Jeff (May 6, 2019). "Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2018". Route Log and Finder List. Federal Highway Administration. Retrieved March 13, 2021.
  12. ^ "Vovici EFM Report: RN-08-03 (2008-12-15)" (PDF). North Carolina Department of Transportation. December 15, 2008. Retrieved July 4, 2013.
  13. ^ North Carolina Department of Transportation (November 1, 1980). "I-240 (1980-11-01)" (PDF). North Carolina Department of Justice. Retrieved July 4, 2013.
  14. ^ "I-285 (2018-02-01)" (PDF). North Carolina Department of Transportation. February 1, 2018. Retrieved January 16, 2019.
  15. ^ "Route Change (2019-01-15)" (PDF). North Carolina Department of Transportation. January 15, 2019. Retrieved December 5, 2019.
  16. ^ "I-440 (1991-07-16)" (PDF). North Carolina Department of Transportation. July 16, 1991. Retrieved July 4, 2013.
  17. ^ Special Committee on U.S. Route Numbering (June 7, 1988). "Route Numbering Committee Agenda" (PDF) (Report). Washington, DC: American Association of State Highway and Transportation Officials. p. 2. Retrieved June 5, 2015 – via Wikimedia Commons.
  18. ^ North Carolina Department of Transportation (December 12, 2013). "North Carolina Gets a New Interstate, with the I-495 Designation near Raleigh" (Press release). North Carolina Department of Transportation. Archived from the original on July 5, 2017. Retrieved December 12, 2013.
  19. ^ "I-540 (1996-12-04)" (PDF). North Carolina Department of Transportation. December 4, 1996. Retrieved July 4, 2013.
  20. ^ North Carolina Department of Transportation (November 21, 2016). "Governor McCrory Announces Designation for US 264 to Greenville" (Press release). North Carolina Department of Transportation. Archived from the original on November 25, 2016. Retrieved November 24, 2016.
  21. ^ "I-785 (2013-07-31)" (PDF). North Carolina Department of Transportation. July 31, 2013. Retrieved August 28, 2013.
  22. ^ "I-795 (2007-10-19)" (PDF). North Carolina Department of Transportation. October 19, 2007. Retrieved July 4, 2013.
  23. ^ "I-840 (2011-09-02)" (PDF). North Carolina Department of Transportation. September 2, 2011. Retrieved July 4, 2013.
  24. ^ "I-40 Bus (1992-11-09)" (PDF). North Carolina Department of Transportation. November 9, 1992. Retrieved July 4, 2013.
  25. ^ "Interstate 440 Route Change (07-16-1991)" (PDF). North Carolina Department of Transportation. July 16, 1991. Retrieved November 16, 2013.
  26. ^ a b "I-95 Bus (1978-05-01)" (PDF). North Carolina Department of Transportation. May 1, 1978. Retrieved July 4, 2013.
  27. ^ "I-95 Bus (1986-01-01)" (PDF). North Carolina Department of Transportation. January 1, 1986. Retrieved July 4, 2013.