<P> Five route numbers are duplicated in the system, though the corresponding highways are separated by state lines which prevent confusion . The main list that discusses the primary Interstate Highways in the contiguous United States is followed by sections regarding Alaska, Hawaii, and Puerto Rico . </P> <P> There are 70 primary Interstate Highways listed in the table below, and 43 of them have auxiliary routes . </P> <Table> <Tr> <Th> Number </Th> <Th> Length (mi) </Th> <Th> Length (km) </Th> <Th> Southern or western terminus </Th> <Th> Northern or eastern terminus </Th> <Th> Formed </Th> <Th> Removed </Th> <Th> Notes </Th> </Tr> <Tr> <Th> I0002! I ‐ 2 </Th> <Td> 46.8 </Td> <Td> 75.3 </Td> <Td> US 83 in Penitas, Texas </Td> <Td> I - 69E / US 77 / US 83 in Harlingen, Texas </Td> <Td> 02013 - 01 - 01 2013 </Td> <Td> current </Td> <Td> Texas only Associated routes: none </Td> </Tr> <Tr> <Th> I0004! I ‐ 4 </Th> <Td> 132.3 </Td> <Td> 212.9 </Td> <Td> I - 275 in Tampa, Florida </Td> <Td> I - 95 / SR 400 Daytona Beach, Florida </Td> <Td> 01959 - 01 - 01 1959 </Td> <Td> current </Td> <Td> Florida only Associated routes: none </Td> </Tr> <Tr> <Th> I0005! I ‐ 5 </Th> <Td> 1,381.29 </Td> <Td> 2,222.97 </Td> <Td> Fed . 1 at Mexican border in San Ysidro, California </Td> <Td> BC 99 at Canadian border in Blaine, Washington </Td> <Td> 01956 - 01 - 01 1956 </Td> <Td> current </Td> <Td> Serves three states: CA, OR, WA Associated routes: I - 105, I - 205, I - 405, I - 505, I - 605, I - 705, I - 805; Future: I - 305, I - 905 </Td> </Tr> <Tr> <Th> I0008! I ‐ 8 </Th> <Td> 348.25 </Td> <Td> 560.45 </Td> <Td> Sunset Cliffs Boulevard / Nimitz Boulevard in San Diego, California </Td> <Td> I - 10 in Casa Grande, Arizona </Td> <Td> 01964 - 01 - 01 1964 </Td> <Td> current </Td> <Td> Serves two states: CA, AZ Associated routes: none </Td> </Tr> <Tr> <Th> I0010! I ‐ 10 </Th> <Td> 2,460.34 </Td> <Td> 3,959.53 </Td> <Td> SR 1 in Santa Monica, California </Td> <Td> I - 95 / US 17 / SR 228 in Jacksonville, Florida </Td> <Td> 01957 - 01 - 01 1957 </Td> <Td> current </Td> <Td> Serves eight states: CA, AZ, NM, TX, LA, MS, AL, FL Associated routes: I - 110, I - 210, I - 310, I - 410, I - 510, I - 610, I - 710, I - 910 </Td> </Tr> <Tr> <Th> I0011! I ‐ 11 </Th> <Td> 15 </Td> <Td> 24 </Td> <Td> US 93 near Boulder City, Nevada </Td> <Td> I - 515 / US 93 / US 95 near Henderson, Nevada </Td> <Td> 02017 - 01 - 01 2017 </Td> <Td> current </Td> <Td> Nevada only; planned extension north and south Associated routes: none </Td> </Tr> <Tr> <Th> I0012! I ‐ 12 </Th> <Td> 85.59 </Td> <Td> 137.74 </Td> <Td> I - 10 in Baton Rouge, Louisiana </Td> <Td> I - 10 / I - 59 in Slidell, Louisiana </Td> <Td> 01967 - 01 - 01 1967 </Td> <Td> current </Td> <Td> Louisiana only Associated routes: none </Td> </Tr> <Tr> <Th> I0014! I ‐ 14 </Th> <Td> 25.90 </Td> <Td> 41.68 </Td> <Td> US 190 / SH 9 in Copperas Cove, Texas </Td> <Td> I - 35 in Belton, Texas </Td> <Td> 02017 - 01 - 26 2017 </Td> <Td> current </Td> <Td> Texas only; planned extension east and west Associated routes: none </Td> </Tr> <Tr> <Th> I0015! I ‐ 15 </Th> <Td> 1,433.52 </Td> <Td> 2,307.03 </Td> <Td> I - 8 / SR 15 in San Diego, California </Td> <Td> Hwy 4 at Canadian border in Sweetgrass, Montana </Td> <Td> 01957 - 01 - 01 1957 </Td> <Td> current </Td> <Td> Serves six states: CA, NV, AZ, UT, ID, MT Associated routes: I - 115, I - 215, I - 315, I - 515 </Td> </Tr> <Tr> <Th> I0016! I ‐ 16 </Th> <Td> 166.81 </Td> <Td> 268.45 </Td> <Td> I - 75 in Macon, Georgia </Td> <Td> SR 404 and Montgomery Street / Martin Luther King Jr . Boulevard in Savannah, Georgia </Td> <Td> 01966 - 01 - 01 1966 </Td> <Td> current </Td> <Td> Georgia only Associated route: I - 516 </Td> </Tr> <Tr> <Th> I0017! I ‐ 17 </Th> <Td> 145.76 </Td> <Td> 234.58 </Td> <Td> I - 10 in Phoenix, Arizona </Td> <Td> I - 40 / SR 89A in Flagstaff, Arizona </Td> <Td> 01961 - 01 - 01 1961 </Td> <Td> current </Td> <Td> Arizona only Associated routes: none </Td> </Tr> <Tr> <Th> I0019! I ‐ 19 </Th> <Td> 63.6 </Td> <Td> 102.4 </Td> <Td> Fed . 15 at Mexican border in Nogales, Arizona </Td> <Td> Tucson, Arizona (I - 10) </Td> <Td> 01972 - 01 - 01 1972 </Td> <Td> current </Td> <Td> Arizona only Associated routes: none Uses kilometers instead of miles </Td> </Tr> <Tr> <Th> I0020! I ‐ 20 </Th> <Td> 1,539.38 </Td> <Td> 2,477.39 </Td> <Td> I - 10 between Kent and Toyah, Texas </Td> <Td> I - 95 in Florence, South Carolina </Td> <Td> 01957 - 01 - 01 1957 </Td> <Td> current </Td> <Td> Serves six states: TX, LA, MS, AL, GA, SC Associated routes: I - 220, I - 520, I - 820 </Td> </Tr> <Tr> <Th> I0022! I ‐ 22 </Th> <Td> 213.0 </Td> <Td> 342.8 </Td> <Td> I - 269 / US 78 near Byhalia </Td> <Td> I - 65 / US 31 in Birmingham, Alabama </Td> <Td> 02012 - 01 - 01 2012 </Td> <Td> current </Td> <Td> Serves two states: Mississippi, Alabama Planned associated routes: I - 222, I - 422 </Td> </Tr> <Tr> <Th> I0024! I ‐ 24 </Th> <Td> 316.36 </Td> <Td> 509.13 </Td> <Td> I - 57 in Pulley's Mill, Illinois </Td> <Td> I - 75 in Chattanooga, Tennessee </Td> <Td> 01962 - 01 - 01 1962 </Td> <Td> current </Td> <Td> Serves four states: Illinois, Kentucky, Tennessee, Georgia Associated route: I - 124 </Td> </Tr> <Tr> <Th> I0025! I ‐ 25 </Th> <Td> 1,062.77 </Td> <Td> 1,710.36 </Td> <Td> I - 10 / US 85 / US 180 in Las Cruces, New Mexico </Td> <Td> I - 90 / US 87 in Buffalo, Wyoming </Td> <Td> 01957 - 01 - 01 1957 </Td> <Td> current </Td> <Td> Serves three states: New Mexico, Colorado, Wyoming Associated route: I - 225 </Td> </Tr> <Tr> <Th> I0026! I ‐ 26 </Th> <Td> 305.62 </Td> <Td> 491.85 </Td> <Td> US 11W in Kingsport, Tennessee </Td> <Td> US 17 in Charleston, South Carolina </Td> <Td> 01960 - 01 - 01 1960 </Td> <Td> current </Td> <Td> Serves three states: Tennessee, North Carolina, South Carolina Associated routes: I - 126, I - 526 </Td> </Tr> <Tr> <Th> I0027! I ‐ 27 </Th> <Td> 124.13 </Td> <Td> 199.77 </Td> <Td> US 87 / Loop 289 in Lubbock, Texas </Td> <Td> I - 40 / US 87 / US 287 in Amarillo, Texas </Td> <Td> 01969 - 01 - 01 1969 </Td> <Td> current </Td> <Td> Texas only Associated routes: none </Td> </Tr> <Tr> <Th> I0029! I ‐ 29 </Th> <Td> 750.58 </Td> <Td> 1,207.94 </Td> <Td> I - 35 / I - 70 in Kansas City, Missouri </Td> <Td> US 81 and PTH 29 at Canadian border in Pembina, North Dakota </Td> <Td> 01958 - 01 - 01 1958 </Td> <Td> current </Td> <Td> Serves four states: Missouri, Iowa, South Dakota, North Dakota Associated routes: I - 129, I - 229 </Td> </Tr> <Tr> <Th> I0030! I ‐ 30 </Th> <Td> 366.76 </Td> <Td> 590.24 </Td> <Td> I - 20 in Fort Worth, Texas </Td> <Td> I - 40 / US 65 / US 67 / US 167 in North Little Rock, Arkansas </Td> <Td> 01957 - 01 - 01 1957 </Td> <Td> current </Td> <Td> Serves two states: Texas, Arkansas Associated routes: I - 430, I - 530, I - 630 </Td> </Tr> <Tr> <Th> I0035! I ‐ 35 </Th> <Td> 1,569.06 </Td> <Td> 2,525.16 </Td> <Td> US 83 / SH 359 / BS I - 35 and MX - 85 at Mexican border in Laredo, Texas </Td> <Td> MN 61 / LSCT / 26th Avenue in Duluth, Minnesota </Td> <Td> 01956 - 01 - 01 1956 </Td> <Td> current </Td> <Td> Serves six states: TX, OK, KS, MO, IA, MN Associated routes: I - 35E, I - 35W, I - 135, I - 235, I - 335, I - 435, I - 535, I - 635 </Td> </Tr> <Tr> <Th> I0037! I ‐ 37 </Th> <Td> 143.00 </Td> <Td> 230.14 </Td> <Td> US 181 in Corpus Christi, Texas </Td> <Td> I - 35 / US 281 in San Antonio, Texas </Td> <Td> 01959 - 01 - 01 1959 </Td> <Td> current </Td> <Td> Texas only Associated routes: none </Td> </Tr> <Tr> <Th> I0039! I ‐ 39 </Th> <Td> 306.14 </Td> <Td> 492.68 </Td> <Td> I - 55 in Normal, Illinois </Td> <Td> WIS 29 / US 51 in Wausau, Wisconsin </Td> <Td> 01984 - 01 - 01 1984 </Td> <Td> current </Td> <Td> Serves two states: Illinois, Wisconsin Associated routes: none </Td> </Tr> <Tr> <Th> I0040! I ‐ 40 </Th> <Td> 2,555.10 </Td> <Td> 4,112.03 </Td> <Td> I - 15 in Barstow, California </Td> <Td> US 117 / NC 132 in Wilmington, North Carolina </Td> <Td> 01964 - 01 - 01 1964 </Td> <Td> current </Td> <Td> Serves eight states: CA, AZ, NM, TX, OK, AR, TN, NC Associated routes: I - 140, I - 240, I - 440, I - 540, I - 640, I - 840 </Td> </Tr> <Tr> <Th> I0041! I ‐ 41 </Th> <Td> 176.33 </Td> <Td> 283.78 </Td> <Td> I - 94 / US 41 in Russell, Illinois </Td> <Td> I - 43 in Howard, Wisconsin </Td> <Td> 02015 - 01 - 01 2015 </Td> <Td> current </Td> <Td> Serves two states: Illinois, Wisconsin Associated routes: none </Td> </Tr> <Tr> <Th> I0043! I ‐ 43 </Th> <Td> 191.55 </Td> <Td> 308.27 </Td> <Td> I - 39 / I - 90 in Beloit, Wisconsin </Td> <Td> I - 41 / US 41 / US 141 in Howard, Wisconsin </Td> <Td> 01981 - 01 - 01 1981 </Td> <Td> current </Td> <Td> Wisconsin only Associated routes: none </Td> </Tr> <Tr> <Th> I0044! I ‐ 44 </Th> <Td> 633.79 </Td> <Td> 1,019.99 </Td> <Td> US 82 / US 277 / US 281 / US 287 in Wichita Falls, Texas </Td> <Td> I - 70 in St. Louis, Missouri </Td> <Td> 01958 - 01 - 01 1958 </Td> <Td> current </Td> <Td> Serves three states: Texas, Oklahoma, Missouri Associated routes: I - 244, I - 444 </Td> </Tr> <Tr> <Th> I0045! I ‐ 45 </Th> <Td> 284.91 </Td> <Td> 458.52 </Td> <Td> SH 87 in Galveston, Texas </Td> <Td> I - 30 in Dallas, Texas </Td> <Td> 01971 - 01 - 01 1971 </Td> <Td> current </Td> <Td> Texas only Associated route: I - 345 </Td> </Tr> <Tr> <Th> I0049! I ‐ 49 </Th> <Td> 388.25 </Td> <Td> 624.83 </Td> <Td> I - 10 in Lafayette, Louisiana </Td> <Td> I - 435 in Kansas City, Missouri </Td> <Td> 01984 - 01 - 01 1984 </Td> <Td> current </Td> <Td> Serves three states: Louisiana, Arkansas, Missouri Associated routes: none </Td> </Tr> <Tr> <Th> I0055! I ‐ 55 </Th> <Td> 964.25 </Td> <Td> 1,551.81 </Td> <Td> I - 10 in LaPlace, Louisiana </Td> <Td> US 41 in Chicago, Illinois </Td> <Td> 01960 - 01 - 01 1960 </Td> <Td> current </Td> <Td> Serves six states: LA, MS, TN, AR, MO, IL Associated routes: I - 155, I - 255, I - 355; I - 555 </Td> </Tr> <Tr> <Th> I0057! I ‐ 57 </Th> <Td> 386.12 </Td> <Td> 621.40 </Td> <Td> I - 55 in Miner, Missouri </Td> <Td> I - 94 in Chicago, Illinois </Td> <Td> 01965 - 01 - 01 1965 </Td> <Td> current </Td> <Td> Serves two states: Missouri, Illinois . Planned in 1 more: Arkansas Associated routes: none </Td> </Tr> <Tr> <Th> I0059! I ‐ 59 </Th> <Td> 445.23 </Td> <Td> 716.53 </Td> <Td> I - 10 / I - 12 in Slidell, Louisiana </Td> <Td> I - 24 in Lookout Mountain, Georgia </Td> <Td> 01960 - 01 - 01 1960 </Td> <Td> current </Td> <Td> Serves four states: Louisiana, Mississippi, Alabama, Georgia Associated routes: I - 359, I - 459, I - 759 </Td> </Tr> <Tr> <Th> I0064! I ‐ 64 </Th> <Td> 953.74 </Td> <Td> 1,534.90 </Td> <Td> I - 70 in Wentzville, Missouri </Td> <Td> I - 264 / I - 664 in Chesapeake, Virginia </Td> <Td> 01961 - 01 - 01 1961 </Td> <Td> current </Td> <Td> Serves six states: MO, IL, IN, KY, WV, VA Associated routes: I - 264, I - 464, I - 564, I - 664 </Td> </Tr> <Tr> <Th> I0065! I ‐ 65 </Th> <Td> 887.30 </Td> <Td> 1,427.97 </Td> <Td> I - 10 in Mobile, Alabama </Td> <Td> I - 90, US - 12, US - 20 in Gary, Indiana </Td> <Td> 01958 - 01 - 01 1958 </Td> <Td> current </Td> <Td> Serves four states: Alabama, Tennessee, Kentucky, Indiana Associated routes: I - 165, I - 265, I - 465, I - 565, I - 865 </Td> </Tr> <Tr> <Th> I0066! I ‐ 66 </Th> <Td> 76.28 </Td> <Td> 122.76 </Td> <Td> I - 81 in Front Royal, Virginia </Td> <Td> US 29 in Washington, D.C. </Td> <Td> 01982 - 01 - 01 1982 </Td> <Td> current </Td> <Td> Serves District of Columbia and one state: Virginia Associated routes: None, had one proposed auxiliary route, I - 266, but was cancelled due to freeway revolts . </Td> </Tr> <Tr> <Th> I0068! I ‐ 68 </Th> <Td> 112.9 </Td> <Td> 181.7 </Td> <Td> I - 79 in Morgantown, West Virginia </Td> <Td> I - 70 in Hancock, Maryland </Td> <Td> 01991 - 01 - 01 1991 </Td> <Td> current </Td> <Td> Serves two states: West Virginia, Maryland Associated routes: None </Td> </Tr> <Tr> <Th> I0069! I ‐ 69 </Th> <Td> 705.40 </Td> <Td> 1,135.23 </Td> <Td> I - 69E / US 77 & I - 69W / US 59 in Victoria, Texas (future) </Td> <Td> Hwy 402 at Canadian border in Port Huron, Michigan </Td> <Td> 01957 - 01 - 01 1957 </Td> <Td> current </Td> <Td> Unfinished Texas section: Rosenberg (US - 59 / Spur 529) to Splendora (US 59 / Mandell Road) Unfinished Mississippi - Tennessee section: Banks, Mississippi (MS 304 / MS 713) to Frayser, Tennessee (US 51 / TN 3) Unfinished Indiana section: Bloomington, Indiana to Indianapolis, Indiana Serves six states: TX, MS, TN, KY, IN, MI . Planned / started in 2 more: LA, AR Associated routes: I - 69C, I - 69E, I - 69W, I - 169, I - 269, I - 369, I - 469; Planned: I - 169 in Tennessee, I - 369 in Kentucky </Td> </Tr> <Tr> <Th> I0070! I ‐ 70 </Th> <Td> 2,153.43 </Td> <Td> 3,465.61 </Td> <Td> I - 15 in Cove Fort, Utah </Td> <Td> Park and ride in Baltimore, Maryland </Td> <Td> 01956 - 01 - 01 1956 </Td> <Td> current </Td> <Td> Serves 10 states: UT, CO, KS, MO, IL, IN, OH, WV, PA, MD Associated routes: I - 170, I - 270, I - 370, I - 470, I - 670 </Td> </Tr> <Tr> <Th> I0071! I ‐ 71 </Th> <Td> 343.78 </Td> <Td> 553.26 </Td> <Td> I - 64 in Louisville, Kentucky </Td> <Td> I - 90 in Cleveland, Ohio </Td> <Td> 01959 - 01 - 01 1959 </Td> <Td> current </Td> <Td> Serves two states: Kentucky, Ohio Associated routes: I - 271, I - 471 </Td> </Tr> <Tr> <Th> I0072! I ‐ 72 </Th> <Td> 179.29 </Td> <Td> 288.54 </Td> <Td> US 61 in Hannibal, Missouri </Td> <Td> I - 57 in Champaign, Illinois </Td> <Td> 01970 - 01 - 01 1970 </Td> <Td> current </Td> <Td> Serves two states: Missouri, Illinois Associated route: I - 172 </Td> </Tr> <Tr> <Th> I0073! I ‐ 73 </Th> <Td> 82.4 </Td> <Td> 132.6 </Td> <Td> US 220 near Ellerbe, North Carolina </Td> <Td> I ‐ 840 / Bryan Boulevard in Greensboro, North Carolina </Td> <Td> 01997 - 01 - 01 1997 </Td> <Td> current </Td> <Td> North Carolina only Associated routes: none </Td> </Tr> <Tr> <Th> I0074! I ‐ 74 </Th> <Td> 440.91 </Td> <Td> 709.58 </Td> <Td> I - 80 in Bettendorf, Iowa </Td> <Td> NC 41 near Lumberton, North Carolina </Td> <Td> 01974 - 01 - 01 1974 </Td> <Td> current </Td> <Td> Serves five states: IA, IL, IN, OH, NC Associated routes: I - 474 </Td> </Tr> <Tr> <Th> I0075! I ‐ 75 </Th> <Td> 1,786.47 </Td> <Td> 2,875.04 </Td> <Td> SR 826 near Hialeah, Florida </Td> <Td> Sault Ste . Marie, Michigan (Canada) </Td> <Td> 01958 - 01 - 01 1958 </Td> <Td> current </Td> <Td> Serves six states: FL, GA, TN, KY, OH, MI Associated routes: I - 175, I - 275, I - 375, I - 475, I - 575, I - 675 </Td> </Tr> <Tr> <Th> I0076! I ‐ 76 </Th> <Td> 187.34 </Td> <Td> 301.49 </Td> <Td> West Denver, Colorado (I - 70) </Td> <Td> Big Springs, Nebraska (I - 80) </Td> <Td> 01975 - 01 - 01 1975 </Td> <Td> current </Td> <Td> Serves two states: Colorado, Nebraska Associated routes: none </Td> </Tr> <Tr> <Th> I0076! I ‐ 76 </Th> <Td> 434.36 </Td> <Td> 699.03 </Td> <Td> East Westfield Center, Ohio (I - 71) </Td> <Td> Bellmawr, New Jersey (I - 295) </Td> <Td> 01964 - 01 - 01 1964 </Td> <Td> current </Td> <Td> Serves three states: Ohio, Pennsylvania, New Jersey Associated routes: I - 176, I - 276, I - 376, I - 476, I - 676; Future: I - 576 </Td> </Tr> <Tr> <Th> I0077! I ‐ 77 </Th> <Td> 610.10 </Td> <Td> 981.86 </Td> <Td> Columbia, South Carolina (I - 26) </Td> <Td> Cleveland, Ohio (I - 90) </Td> <Td> 01958 - 01 - 01 1958 </Td> <Td> current </Td> <Td> Serves five states: South Carolina, North Carolina, Virginia, West Virginia, Ohio Associated route: I - 277 </Td> </Tr> <Tr> <Th> I0078! I ‐ 78 </Th> <Td> 143.56 </Td> <Td> 231.04 </Td> <Td> Union Township, Pennsylvania (I - 81) </Td> <Td> New York City </Td> <Td> 01957 - 01 - 01 1957 </Td> <Td> current </Td> <Td> Serves three states: Pennsylvania, New Jersey, New York Associated routes: I - 278, I - 478, I - 678, I - 878 </Td> </Tr> <Tr> <Th> I0079! I ‐ 79 </Th> <Td> 343.24 </Td> <Td> 552.39 </Td> <Td> Charleston, West Virginia (I - 77) </Td> <Td> Erie, Pennsylvania (PA - 5) </Td> <Td> 01967 - 01 - 01 1967 </Td> <Td> current </Td> <Td> Serves two states: West Virginia, Pennsylvania Associated routes: I - 279, I - 579 </Td> </Tr> <Tr> <Th> I0080! I ‐ 80 </Th> <Td> 2,899.54 </Td> <Td> 4,666.36 </Td> <Td> San Francisco, California (US 101) </Td> <Td> Teaneck, New Jersey (I - 95) </Td> <Td> 01956 - 01 - 01 1956 </Td> <Td> current </Td> <Td> Serves 11 states: CA, NV, UT, WY, NE, IA, IL, IN, OH, PA, NJ Associated routes: I - 180, I - 238 I - 280, I - 380, I - 480, I - 580, I - 680, I - 780, I - 880, I - 980 </Td> </Tr> <Tr> <Th> I0081! I ‐ 81 </Th> <Td> 854.89 </Td> <Td> 1,375.81 </Td> <Td> Dandridge, Tennessee (I - 40) </Td> <Td> Fisher's Landing, New York (Canada) </Td> <Td> 01961 - 01 - 01 1961 </Td> <Td> current </Td> <Td> Serves six states: TN, VA, WV, MD, PA, NY Associated routes: I - 381, I - 481, I - 581, I - 781 </Td> </Tr> <Tr> <Th> I0082! I ‐ 82 </Th> <Td> 143.58 </Td> <Td> 231.07 </Td> <Td> Ellensburg, Washington (I - 90) </Td> <Td> Hermiston, Oregon (I - 84) </Td> <Td> 01957 - 01 - 01 1957 </Td> <Td> current </Td> <Td> Serves two states: Washington, Oregon Associated route: I - 182 </Td> </Tr> <Tr> <Th> I0083! I ‐ 83 </Th> <Td> 85.3 </Td> <Td> 137.3 </Td> <Td> Baltimore, Maryland </Td> <Td> Harrisburg, Pennsylvania (I - 81) </Td> <Td> 01959 - 01 - 01 1959 </Td> <Td> current </Td> <Td> Serves two states: Maryland, Pennsylvania Associated route: I - 283 </Td> </Tr> <Tr> <Th> I0084! I ‐ 84 </Th> <Td> 769.62 </Td> <Td> 1,238.58 </Td> <Td> West Portland, Oregon (I - 5) </Td> <Td> Echo, Utah (I - 80) </Td> <Td> 01980 - 01 - 01 1980 </Td> <Td> current </Td> <Td> Serves three states: Oregon, Idaho, Utah Associated route: I - 184 </Td> </Tr> <Tr> <Th> I0084! I ‐ 84 </Th> <Td> 232.4 </Td> <Td> 374.0 </Td> <Td> East Scranton, Pennsylvania (I - 81) </Td> <Td> Sturbridge, Massachusetts (I - 90) </Td> <Td> 01963 - 01 - 01 1963 </Td> <Td> current </Td> <Td> Serves four states: Pennsylvania, New York, Connecticut, Massachusetts Associated routes: I - 384, I - 684 </Td> </Tr> <Tr> <Th> I0085! I ‐ 85 </Th> <Td> 668.75 </Td> <Td> 1,076.25 </Td> <Td> Montgomery, Alabama (I - 65) </Td> <Td> Petersburg, Virginia (I - 95) </Td> <Td> 01958 - 01 - 01 1958 </Td> <Td> current </Td> <Td> Serves five states: Alabama, Georgia, South Carolina, North Carolina, Virginia Associated routes: I - 185, I - 285, I - 385, I - 485, I - 585, I - 785, I - 985; Planned: I - 685 </Td> </Tr> <Tr> <Th> I0086! I ‐ 86 </Th> <Td> 62.85 </Td> <Td> 101.15 </Td> <Td> West Heyburn, Idaho (I - 84) </Td> <Td> Pocatello, Idaho (I - 15) </Td> <Td> 01980 - 01 - 01 1980 </Td> <Td> current </Td> <Td> Idaho only Associated routes: none </Td> </Tr> <Tr> <Th> I0086! I ‐ 86 </Th> <Td> 183.56 </Td> <Td> 295.41 </Td> <Td> East Erie, Pennsylvania (I - 90) </Td> <Td> Windsor, New York (NY 79) </Td> <Td> 01999 - 01 - 01 1999 </Td> <Td> current </Td> <Td> Serves two states: Pennsylvania, New York Associated routes: none </Td> </Tr> <Tr> <Th> I0087! I ‐ 87 </Th> <Td> 10.4 </Td> <Td> 16.7 </Td> <Td> Raleigh, North Carolina (I - 440 / US 64 / US 264) </Td> <Td> Wendell, North Carolina (US 64 / US 264) </Td> <Td> 02017 - 01 - 01 2017 </Td> <Td> current </Td> <Td> North Carolina only Associated routes: None, will eventually have one spur route, I - 587 . </Td> </Tr> <Tr> <Th> I0087! I ‐ 87 </Th> <Td> 333.49 </Td> <Td> 536.70 </Td> <Td> New York City (I - 278) </Td> <Td> Champlain, New York (A-15 at Canadian border) </Td> <Td> 01957 - 01 - 01 1957 </Td> <Td> current </Td> <Td> New York only Associated routes: I - 287, I - 587, I - 787 </Td> </Tr> <Tr> <Th> I0088! I ‐ 88 </Th> <Td> 140.6 </Td> <Td> 226.3 </Td> <Td> West Barstow, Illinois (I - 80) </Td> <Td> Hillside, Illinois (I - 290) </Td> <Td> 01987 - 01 - 01 1987 </Td> <Td> current </Td> <Td> Illinois only Associated routes: none </Td> </Tr> <Tr> <Th> I0088! I ‐ 88 </Th> <Td> 117.75 </Td> <Td> 189.50 </Td> <Td> East Binghamton, New York (I - 81) </Td> <Td> Schenectady, New York (I - 90) </Td> <Td> 01968 - 01 - 01 1968 </Td> <Td> current </Td> <Td> New York only Associated routes: none </Td> </Tr> <Tr> <Th> I0089! I ‐ 89 </Th> <Td> 191.12 </Td> <Td> 307.58 </Td> <Td> Bow, New Hampshire (I - 93) </Td> <Td> Highgate Springs, Vermont (Route 133 at Canadian border / future A-35) </Td> <Td> 01960 - 01 - 01 1960 </Td> <Td> current </Td> <Td> Serves two states: New Hampshire, Vermont Associated route: I - 189 </Td> </Tr> <Tr> <Th> I0090! I ‐ 90 </Th> <Td> 3,020.44 </Td> <Td> 4,860.93 </Td> <Td> Seattle, Washington (WA 519) </Td> <Td> Boston, Massachusetts (MA 1A) </Td> <Td> 01956 - 01 - 01 1956 </Td> <Td> current </Td> <Td> Serves 13 states: WA, ID, MT, WY, SD, MN, WI, IL, IN, OH, PA, NY, MA Associated routes: I - 190, I - 290, I - 390, I - 490, I - 590, I - 690, I - 790, I - 890, I - 990 </Td> </Tr> <Tr> <Th> I0091! I ‐ 91 </Th> <Td> 290.37 </Td> <Td> 467.31 </Td> <Td> New Haven, Connecticut / North Haven, Connecticut (I - 95) </Td> <Td> Derby Line, Vermont (A-55 at Canadian border) </Td> <Td> 01958 - 01 - 01 1958 </Td> <Td> current </Td> <Td> Serves three states: Connecticut, Massachusetts, Vermont Associated routes: I - 291, I - 391, I - 691 </Td> </Tr> <Tr> <Th> I0093! I ‐ 93 </Th> <Td> 189.95 </Td> <Td> 305.69 </Td> <Td> Canton, Massachusetts (I - 95) </Td> <Td> St. Johnsbury, Vermont (I - 91) </Td> <Td> 01957 - 01 - 01 1957 </Td> <Td> current </Td> <Td> Serves three states: Massachusetts, New Hampshire, Vermont Associated routes: I - 293, I - 393 </Td> </Tr> <Tr> <Th> I0094! I ‐ 94 </Th> <Td> 1,585.20 </Td> <Td> 2,551.13 </Td> <Td> Billings, Montana (I - 90) </Td> <Td> Port Huron, Michigan (Hwy 402 at Canadian border) </Td> <Td> 01956 - 01 - 01 1956 </Td> <Td> current </Td> <Td> Serves seven states: MT, ND, MN, WI, IL, IN, MI Associated routes: I - 194, I - 294, I - 394, I - 494, I - 694, I - 794, I - 894 </Td> </Tr> <Tr> <Th> I0095! I ‐ 95 </Th> <Td> 1,925.74 </Td> <Td> 3,099.18 </Td> <Td> US 1 in Miami, Florida </Td> <Td> NB 95 at Canadian border in Houlton, Maine </Td> <Td> 01957 - 01 - 01 1957 </Td> <Td> current </Td> <Td> Serves DC and 15 states: FL, GA, SC, NC, VA, MD, DE, PA, NJ, NY, CT, RI, MA, NH, ME Associated routes: I - 195, I - 295, I - 395, I - 495, I - 595, I - 695, I - 795, I - 895 </Td> </Tr> <Tr> <Th> I0096! I ‐ 96 </Th> <Td> 192.06 </Td> <Td> 309.09 </Td> <Td> Muskegon, Michigan (US 31) </Td> <Td> Detroit, Michigan (I - 75) </Td> <Td> 01959 - 01 - 01 1959 </Td> <Td> current </Td> <Td> Michigan only Associated routes: I - 196, I - 296, I - 496, I - 696 </Td> </Tr> <Tr> <Th> I0097! I ‐ 97 </Th> <Td> 17.62 </Td> <Td> 28.36 </Td> <Td> Annapolis, Maryland (US 50) </Td> <Td> Baltimore, Maryland (I - 695 / I - 895) </Td> <Td> 01987 - 01 - 01 1987 </Td> <Td> current </Td> <Td> Maryland only Associated routes: None, had 2 auxiliary routes planned, I - 197 and I - 297, but they were replaced by I - 595 and MD Route 3 . </Td> </Tr> <Tr> <Th> I0099! I ‐ 99 </Th> <Td> 98.86 </Td> <Td> 159.10 </Td> <Td> Bedford, Pennsylvania (I - 70 / I - 76) </Td> <Td> Painted Post, New York (I - 86) </Td> <Td> 01998 - 01 - 01 1998 </Td> <Td> current </Td> <Td> Unfinished Pennsylvania section: Bellefonte, Pennsylvania (I - 80) to New York border near Lawrenceville, Pennsylvania (US 15) Serves two states: Pennsylvania, New York Associated routes: none </Td> </Tr> </Table> <Tr> <Th> Number </Th> <Th> Length (mi) </Th> <Th> Length (km) </Th> <Th> Southern or western terminus </Th> <Th> Northern or eastern terminus </Th> <Th> Formed </Th> <Th> Removed </Th> <Th> Notes </Th> </Tr>

What is the longest interstate highway in the united states