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This contains a list of United States Interstate Highways, including their length, starting point in the south or west, ending point in the north or east, and the year they were created.



The United States Interstate Highway System is a network of highways that connects cities and regions across the United States. The system was authorized by the Federal Aid Highway Act of 1956, and construction began in the late 1950s. The highways are numbered and designated with the prefix "I-", followed by a number that indicates its location and direction.

As of 2022, there are 70 primary and auxiliary Interstate highways in the United States, with a total length of over 48,000 miles (77,000 km). The longest of these is I-90, which spans over 3,000 miles (4,800 km) from Seattle, Washington to Boston, Massachusetts. The shortest is I-878, located in New York City, with a length of just 0.7 miles (1.1 km).

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S.No.,Number,Length (km),Length (mi),Formed,Southernor westernterminus,Northernor easternterminus1,I-2,75.32,46.80,2013,"US83 in Peitas, Texas","I-69E/US77/US83 in Harlingen, Texas"2,I-4,212.92,132.30,1959,"I-275 in Tampa, Florida","I-95/SR 400 in Daytona Beach, Florida"3,I-5,"2,222.97",1381.29,1956,"Fed. 1 at Mexican border in San Ysidro, California","BC 99 at Canadian border in Blaine, Washington"4,I-8,560.45,348.25,1964,"Sunset Cliffs Boulevard/Nimitz Boulevard in San Diego, California","I-10 in Casa Grande, Arizona"5,I-10,"3,959.53",2460.34,1957,"SR 1 in Santa Monica, California","I-95/US17/SR 228 in Jacksonville, Florida"6,I-11,36.37,22.60,2017,"US93 at Arizona state line near Boulder City, Nevada","I-215/I-515/US93/US95/SR 564 in Henderson, Nevada"7,I-12,137.74,85.59,1967,"I-10 in Baton Rouge, Louisiana","I-10/I-59 in Slidell, Louisiana"8,I-14,40.39,25.10,2017,"US190/SH9 in Copperas Cove, Texas","I-35 in Belton, Texas"9,I-15,"2,307.03",1433.52,1957,"I-8/SR 15 in San Diego, California","Hwy.4 at Canadian border in Sweetgrass, Montana"10,I-16,268.45,166.81,1966,"I-75 in Macon, Georgia","SR404 and Montgomery Street/Martin Luther King Jr. Boulevard in Savannah, Georgia"11,I-17,234.58,145.76,1961,"I-10/US60 in Phoenix, Arizona","I-40/SR89A in Flagstaff, Arizona"12,I-19,101.95,63.35,1972,"Fed. 15 at Mexican border in Nogales, Arizona","I-10 in Tucson, Arizona"13,I-20,"2,477.39",1539.38,1957,"I-10 at Scroggins Draw, Texas","I-95 in Florence, South Carolina"14,I-22,325.44,202.22,2012,"I-269/US78 near Byhalia, Mississippi","I-65/US31 in Birmingham, Alabama"15,I-24,509.13,316.36,1962,"I-57 in Pulley's Mill, Illinois","I-75 in Chattanooga, Tennessee"16,I-25,"1,708.59",1061.67,1957,"I-10/US85/US180 in Las Cruces, New Mexico","I-90/US87 in Buffalo, Wyoming"17,I-26,490.27,304.64,1960,"US11W/US23 in Kingsport, Tennessee","US17 in Charleston, South Carolina"18,I-27,199.77,124.13,1969,"US87/Loop 289 in Lubbock, Texas","I-40/US87/US287/US60 in Amarillo, Texas"19,I-29,"1,215.88",755.51,1958,"I-35/I-70/US24/US40/US71 in Kansas City, Missouri","US81 and PTH 75 at Canadian border in Pembina, North Dakota"20,I-30,590.24,366.76,1957,"I-20 in Fort Worth, Texas","I-40/US65/US67/US167 in North Little Rock, Arkansas"21,I-35,"2,524.06",1568.38,1956,"US83/SH 359/BS I-35 and MX-85 at Mexican border in Laredo, Texas","MN 61/LSCT/26th Avenue in Duluth, Minnesota"22,I-37,230.14,143.00,1959,"US181 in Corpus Christi, Texas","I-35/US281 in San Antonio, Texas"23,I-39,492.68,306.14,1984,"I-55 in Normal, Illinois","WIS 29/US51 in Wausau, Wisconsin"24,I-40,"4,114.46",2556.61,1964,"I-15 in Barstow, California","US117/NC 132 in Wilmington, North Carolina"25,I-41,281.64,175.00,2015,"I-94/US41 in Russell, Illinois","I-43/US41/US141 in Howard, Wisconsin"26,I-42,228.53,142.00,proposed,"I-40/US 70 in Garner, North Carolina","US 70 in Morehead City, North Carolina"27,I-43,308.27,191.55,1981,"I-39/I-90 in Beloit, Wisconsin","I-41/US41/US141 in Howard, Wisconsin"28,I-44,"1,024.65",636.69,1958,"US82/US277/US281/US287 in Wichita Falls, Texas","I-70 in St. Louis, Missouri"29,I-45,458.52,284.91,1971,"SH87 in Galveston, Texas","I-30/US67/US75 in Dallas, Texas"30,I-49,849.77,528.02,1984,"I-10 in Lafayette, Louisiana","I-435/I-470/US50/US71 in Kansas City, Missouri"31,I-55,"1,551.81",964.25,1960,"I-10 in LaPlace, Louisiana","US41 in Chicago, Illinois"32,I-57,621.40,386.12,1965,"I-55 in Miner, Missouri","I-94 in Chicago, Illinois"33,I-59,716.53,445.23,1960,"I-10/I-12 in Slidell, Louisiana","I-24 in Wildwood, Georgia"34,I-64,"1,550.64",963.52,1961,"I-70/US61 in Wentzville, Missouri","I-264/I-664 in Chesapeake, Virginia"35,I-65,"1,427.97",887.30,1958,"I-10 in Mobile, Alabama","US12/US20 in Gary, Indiana"36,I-66,122.76,76.28,1961,"I-81 in Front Royal, Virginia","US29 in Washington, D.C."37,I-68,182.10,113.15,1991,"I-79 in Morgantown, West Virginia","I-70 in Hancock, Maryland"38,I-69,"1,161.25",721.57,1957,"US59 in Rosenberg, Texas","Hwy 402 at Canadian border in Port Huron, Michigan"39,I-70,"3,495.75",2172.16,1956,"I-15 in Cove Fort, Utah","Park and ride in Baltimore, Maryland"40,I-71,556.14,345.57,1959,"I-64 in Louisville, Kentucky","I-90 in Cleveland, Ohio"41,I-72,288.54,179.29,1970,"US61 in Hannibal, Missouri","Church Street and University Avenue in Champaign, Illinois"42,I-73,160.02,99.43,1997,"US220 near Stokesdale, North Carolina","I74 and US220 in Randleman, North Carolina"43,I-74,791.38,491.74,1974,"I-80 in Bettendorf, Iowa","US74/NC 41 near Lumberton, North Carolina"44,I-75,"2,875.04",1786.47,1958,"SR 826/SR 916/SR 924 in Miami Lakes, Florida","Canadian border at Sault Ste. Marie, Michigan"45,I-76,300.11,186.48,1975,"I-70 at Denver, Colorado","I-80 at Big Springs, Nebraska"46,I-76,701.13,435.66,1964,"I-71 in Westfield Center, Ohio","I-295 at Bellmawr, New Jersey"47,I-77,981.86,610.10,1958,"I-26 in Columbia, South Carolina","I-90 in Cleveland, Ohio"48,I-78,235.41,146.28,1957,"I-81 at Jonestown, Pennsylvania",Canal Street in New York City49,I-79,552.75,343.46,1967,"I-77 in Charleston, West Virginia","PA 5 in Erie, Pennsylvania"50,I-80,"4,666.44",2899.59,1956,"US101 in San Francisco, California","I-95 in Teaneck, New Jersey"51,I-81,"1,376.02",855.02,1961,"I-40 in Dandridge, Tennessee","Canadian border at Wellesley Island, New York"52,I-82,231.07,143.58,1957,"I-90 in Ellensburg, Washington","I-84 in Hermiston, Oregon"53,I-83,136.84,85.03,1959,"President Street and Fayette Street in Baltimore, Maryland","I-81 in Harrisburg, Pennsylvania"54,I-84,"1,238.58",769.62,1980,"I-5 in Portland, Oregon","I-80 in Echo, Utah"55,I-84,374.51,232.71,1963,"I-81 in Scranton, Pennsylvania","I-90 in Sturbridge, Massachusetts"56,I-85,"1,071.90",666.05,1958,"I-65 in Montgomery, Alabama","I-95 in Petersburg, Virginia"57,I-86,101.15,62.85,1980,"I-84 near Declo, Idaho","I-15 in Chubbuck, Idaho"58,I-86,359.51,223.39,1999,"I-90 near North East, Pennsylvania","NY17/NY79 in Windsor, New York"59,I-87,20.76,12.90,2017,"I-440/US64/US264 in Raleigh, North Carolina","US64/US264 in Wendell, North Carolina"60,I-87,536.70,333.49,1957,I-278 in New York City,"A-15 at Canadian border in Champlain, New York"61,I-88,226.27,140.60,1987,"I-80/IL 92 in East Moline, Illinois","I-290/IL 110 in Hillside, Illinois"62,I-88,189.50,117.75,1968,"I-81 in Binghamton, New York","I-90 in Schenectady, New York"63,I-89,307.58,191.12,1960,"I-93/SR 3A in Bow, New Hampshire","Route133/Future A-35 at Canadian border in Highgate, Vermont"64,I-90,"4,860.93",3020.44,1956,"SR 519/4th Avenue/Edgar Martinez Drive in Seattle, Washington","MA 1A in Boston, Massachusetts"65,I-91,467.31,290.37,1958,"I-95 in New Haven, Connecticut","A-55 at Canadian border in Derby Line, Vermont"66,I-93,305.69,189.95,1957,"I-95/US1 in Canton, Massachusetts","I-91 in St. Johnsbury, Vermont"67,I-94,"2,551.13",1585.20,1956,"I-90 in Lockwood, Montana","Highway 402 at Canadian border in Port Huron, Michigan"68,I-95,"3,088.83",1919.31,1957,"US1 in Miami, Florida","NB95 at Canadian border in Houlton, Maine"69,I-96,309.09,192.06,1959,"US31 in Norton Shores, Michigan","I-75 in Detroit, Michigan"70,I-97,28.36,17.62,1987,"US50 in Annapolis, Maryland","I-695/I-895 in Glen Burnie, Maryland"71,I-99,158.26,98.34,1998,"I-70/I-76 in Bedford, Pennsylvania","I-86/NY17 in Painted Post, New York",,,,,,https://www.downloadexcelfiles.com/,,,,,,