US Interstate Map

Explore USA Interstate map, The United States Interstate Highway System, established in 1956, is a network of over 47,000 miles designed to facilitate efficient and rapid transportation across the country. Its construction has significantly impacted the nation's economy, reducing travel times and connecting major cities. The system includes notable highways such as Interstate 95, which runs along the East Coast from Florida to Maine, and Interstate 10, stretching from California to Florida, providing crucial links for both commuters and freight transport.

US Interstate Map

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About US Interstate Map

Explore USA interstate map or US interstate highway map to locate all the interstate highways network of United States.

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Interstate Highways in the United States

The Interstate Highway System in the United States, officially known as the Dwight D. Eisenhower National System of Interstate and Defense Highways, is a critical component of the nation's infrastructure. Envisioned in the 1950s during President Eisenhower's administration, this extensive network was designed to facilitate efficient transportation across the United States.

The Interstate Highway System spans over 46,000 miles and consists of controlled-access highways that crisscross the nation, connecting major cities, regions, and nearly every important metropolitan area. Notable interstates include I-95, which runs along the East Coast from Miami, Florida to Houlton, Maine, and I-10, stretching from Los Angeles, California to Jacksonville, Florida.

The system was constructed with a multitude of benefits in mind. It enhances national defense by providing easier movement of military personnel and equipment, significantly boosts economic growth by facilitating the movement of goods and services, and offers considerable savings in time and fuel for commuters and commercial users.

Economically, the Interstate Highway System is instrumental in supporting commerce and industry. It has enabled just-in-time delivery methods, which have revolutionized manufacturing by allowing goods to be produced and transported more efficiently. By providing a network of reliable highways, businesses can maintain lower inventories and reduce warehousing costs.

Safety is another significant advantage of the system. Controlled access highways reduce the likelihood of accidents compared to conventional roadways by managing the flow of traffic, reducing conflicts between high-speed and low-speed vehicles, and limiting entry and exit points. This design feature has helped lower crash rates and enhance the safety of travel.

The Interstate Highway System also plays a vital role in emergency evacuations and disaster response. Its extensive reach and connectivity allow for the swift evacuation of populations during natural disasters such as hurricanes or floods. It also ensures that emergency services can access affected areas quickly and efficiently.

Moreover, the system is a testament to engineering prowess and continuous innovation. Regular maintenance, expansions, upgrades, and technological enhancements ensure that the network remains robust and capable of meeting the demands of modern transportation. Features such as high-occupancy vehicle lanes, intelligent transportation systems, and infrastructure resilience projects are continuously being integrated into the system.

Environmental concerns are increasingly being addressed by the system's administration. Efforts to minimize the carbon footprint include the incorporation of green spaces, the promotion of fuel-efficient travel through reduced congestion, and support for electric vehicle infrastructure.

The Interstate Highway System is indispensable to the United States' economy, safety, and daily life. Its comprehensive network not only underpins national defense and economic stability but also exemplifies a public infrastructure success story. As the system continues to evolve, it remains a critical asset in shaping the future of the nation's transportation landscape.

List of Interstate Highways in the United States

NumberFormedLength in miLength in kmNorthern / Eastern TerminusSouthern / Western Terminus
I-2201346.8075.32I-69E/US 77/US 83 in Harlingen, TexasBL US 83 in Peñitas, Texas
I-41959132.30212.92I-95/SR 400 in Daytona Beach, FloridaI-275 in Tampa, Florida
I-519561,381.292,222.97Hwy 99 at Canadian border in Blaine, WashingtonFed. 1/Fed. 1D at Mexican border in San Ysidro, California
I-81964348.25560.45I-10 in Casa Grande, ArizonaSunset Cliffs Boulevard/Nimitz Boulevard in San Diego, California
I-1019572,460.343,959.53I-95/US 17/SR 15/SR 228 in Jacksonville, FloridaSR 1 in Santa Monica, California
I-11201722.6036.37I-215/I-515/US 93/US 95/SR 564 in Henderson, NevadaUS 93 at Arizona state line near Boulder City, Nevada
I-12196785.59137.74I-10/I-59 in Slidell, LouisianaI-10 in Baton Rouge, Louisiana
I-14201725.1040.39I-35/US 190 in Belton, TexasUS 190/US 190 Bus in Copperas Cove, Texas
I-1519571,433.522,307.03Highway 4 at Canadian border in Sweetgrass, MontanaI-8/SR 15 in San Diego, California
I-161966166.81268.45Montgomery Street in Savannah, GeorgiaI-75/SR 540 in Macon, Georgia
I-171961145.76234.58I-40/SR 89A in Flagstaff, ArizonaI-10/US 60 in Phoenix, Arizona
I-19197263.35101.95I-10 in Tucson, ArizonaI-19 Bus. in Nogales, Arizona
I-2019571,539.382,477.39I-95/I-20 Bus. in Florence, South CarolinaI-10 at Scroggins Draw, Texas
I-222012202.22325.44I-65 in Birmingham, AlabamaI-269/US 78/MS 304 near Byhalia, Mississippi
I-241962316.36509.13I-75 in Chattanooga, TennesseeI-57 in Pulley's Mill, Illinois
I-2519571,061.671,708.59I-90/US 87 in Buffalo, WyomingI-10/US 85/US 180 in Las Cruces, New Mexico
I-261960304.64490.27US 17 in Charleston, South CarolinaUS 11W/US 23/SR 137 in Kingsport, Tennessee
I-271969124.13199.77I-40/US 87/US 287/US 60 in Amarillo, TexasUS 87/Loop 289 in Lubbock, Texas
I-291958755.511,215.88US 81 and PTH 75 at Canadian border in Pembina, North DakotaI-35/I-70/US 24/US 40/US 71 in Kansas City, Missouri
I-301957366.76590.24I-40/US 65/US 67/US 167 in North Little Rock, ArkansasI-20 in Fort Worth, Texas
I-311957--US 81 and PTH 75 at Canadian border in Pembina, North DakotaI-94 in Fargo, North Dakota
I-3519561,568.382,524.06MN 61/LSCT/26th Avenue in Duluth, MinnesotaUS 83/Victoria Street in Laredo, Texas
I-371959143.00230.14I-35/US 281 in San Antonio, TexasUS 181 in Corpus Christi, Texas
I-391984306.14492.68WIS 29/US 51 in Wausau, WisconsinI-55 in Normal, Illinois
I-4019642,556.614,114.46US 117/NC 132 in Wilmington, North CarolinaI-15 in Barstow, California
I-412015175.00281.64I-43/US 41/US 141 in Howard, WisconsinI-94/US 41 in Russell, Illinois
I-42proposed142.00228.53US 70 in Morehead City, North CarolinaI-40/US 70 in Garner, North Carolina
I-431981191.55308.27I-41/US 41/US 141 in Howard, WisconsinI-39/I-90 in Beloit, Wisconsin
I-441958636.691,024.65I-70 in St. Louis, MissouriUS 82/US 277/US 281/US 287 in Wichita Falls, Texas
I-451971284.91458.52I-30/US 67/US 75 in Dallas, TexasSH 87 in Galveston, Texas
I-491984528.02849.77I-435/I-470/US 50/US 71 in Kansas City, MissouriI-10/US 167/LA 182 in Lafayette, Louisiana
I-551960964.251,551.81US 41 in Chicago, IllinoisI-10 in LaPlace, Louisiana
I-571965386.12621.40I-94 in Chicago, IllinoisI-55 in Miner, Missouri
I-591960445.23716.53I-24 in Wildwood, GeorgiaI-10/I-12 in Slidell, Louisiana
I-641961963.521,550.64I-264/I-664 in Chesapeake, VirginiaI-70/US 61 in Wentzville, Missouri
I-651958887.301,427.97US 12/US 20 in Gary, IndianaI-10 in Mobile, Alabama
I-661991--Near Pikeville, KentuckyWitchita, Kansas
I-66196176.28122.76US 29 in Washington, D.C.I-81 in Front Royal, Virginia
I-681991113.15182.10I-70 in Hancock, MarylandI-79 in Morgantown, West Virginia
I-691957879.821,415.93Hwy 402 at Canadian border in Port Huron, MichiganUS 59 in Rosenberg, Texas
I-7019562,172.163,495.75I-695 in Woodlawn, MarylandI-15 in Cove Fort, Utah
I-711959345.57556.14I-90 in Cleveland, OhioI-64 in Louisville, Kentucky
I-721970179.29288.54Church Street and University Avenue in Champaign, IllinoisUS 61 in Hannibal, Missouri
I-73199799.43160.02I‑74 and US 220 in Randleman, North CarolinaUS 220 near Stokesdale, North Carolina
I-741974491.74791.38US 74/NC 41 near Lumberton, North CarolinaI-80 in Bettendorf, Iowa
I-7519581,786.472,875.04Canadian border at Sault Ste. Marie, MichiganSR 826/SR 916/SR 924 in Miami Lakes, Florida
I-761975186.48300.11I-80 at Big Springs, NebraskaI-70 at Denver, Colorado
I-761964435.66701.13I-295 at Bellmawr, New JerseyI-71 in Westfield Center, Ohio
I-771958610.10981.86I-90 in Cleveland, OhioI-26 in Columbia, South Carolina
I-781957146.28235.41Canal Street in New York CityI-81 at Jonestown, Pennsylvania
I-791967343.46552.75PA 5 in Erie, PennsylvaniaI-77 in Charleston, West Virginia
I-8019562,899.594,666.44I-95 in Teaneck, New JerseyUS 101 in San Francisco, California
I-811961855.021,376.02Hwy 137 at Canadian border on Wellesley Island, New YorkI-40 in Dandridge, Tennessee
I-821957143.58231.07I-84 in Hermiston, OregonI-90 in Ellensburg, Washington
I-821957--I-95 in Teaneck, New JerseyI-81/I-84/US 6 in Scranton, Pennsylvania
I-821956--Providence, Rhode IslandI-84 in East Hartford, Connecticut
I-83195985.03136.84I-81 in Harrisburg, PennsylvaniaPresident Street and Fayette Street in Baltimore, Maryland
I-841980769.621,238.58I-80 in Echo, UtahI-5 in Portland, Oregon
I-841963232.71374.51I-90 in Sturbridge, MassachusettsI-81 in Scranton, Pennsylvania
I-851958666.051,071.90I-95 in Petersburg, VirginiaI-65 in Montgomery, Alabama
I-86198062.85101.15I-15 in Chubbuck, IdahoI-84 near Declo, Idaho
I-861999223.39359.51NY 17/NY 79 in Windsor, New YorkI-90 near North East, Pennsylvania
I-86196838.9762.72I-90 in Sturbridge, MassachusettsI-84 in East Hartford, Connecticut
I-87201712.9020.76US 64/US 264 in Wendell, North CarolinaI-440/US 64/US 264 in Raleigh, North Carolina
I-871957333.49536.70A-15 at Canadian border in Champlain, New YorkI-278 in New York City
I-881987140.60226.27I-290/IL 110 in Hillside, IllinoisI-80/IL 92 in East Moline, Illinois
I-881968117.75189.50I-90 in Schenectady, New YorkI-81 in Binghamton, New York
I-891960191.12307.58Route 133/Future A-35 at Canadian border in Highgate, VermontI-93/SR 3A in Bow, New Hampshire
I-9019563,020.444,860.93MA 1A in Boston, MassachusettsSR 519/4th Avenue/Edgar Martinez Drive in Seattle, Washington
I-911958290.37467.31A-55 at Canadian border in Derby Line, VermontI-95/Route 34 in New Haven, Connecticut
I-931957189.95305.69I-91 in St. Johnsbury, VermontI-95/US 1 in Canton, Massachusetts
I-9419561,585.202,551.13Highway 402 at Canadian border in Port Huron, MichiganI-90 in Lockwood, Montana
I-9519571,919.313,088.83NB 95 at Canadian border in Houlton, MaineUS 1 in Miami, Florida
I-961959192.06309.09I-75 in Detroit, MichiganUS 31 in Norton Shores, Michigan
I-97198717.6228.36I-695/I-895 in Glen Burnie, MarylandUS 50 in Annapolis, Maryland
I-99199898.34158.26I-86/NY 17 in Painted Post, New YorkI-70/I-76 in Bedford, Pennsylvania

Interstate Hiways in Hawaii

NumberLength (mi)Length (km)FormedNorthern or eastern terminusSouthern or western terminusRemoved
H-127441960Route 72 in HonoluluRoute 93 in Kapoleicurrent
H-28131960Route 99 in WahiawaH-1 in Pearl Citycurrent
H-315251997Marine Corps Base HawaiiH-1/H-201 in Halawacurrent

Interstate Hiways in Alaska

NumberLength (mi)Length (km)FormedNorthern or eastern terminusSouthern or western terminusRemoved
A-14086571976Canadian border in Alcan BorderAnchoragecurrent
A-43245211976FairbanksGateway, near Palmercurrent

Interstate Hiways in Puerto Rico

NumberLength (mi)Length (km)FormedNorthern or eastern terminusSouthern or western terminusRemoved
PR-171114.391976PR-2 in San JuanPR-2 in Poncecurrent
PR-2138222.31976PR-3 in San JuanPR-1 in Poncecurrent
PR-34165.271976PR-2 in San JuanPR-3 in Humacaocurrent

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