What highway goes across the United States?
Interstate 80
I-80 is the Interstate Highway that most closely approximates the route of the historic Lincoln Highway, the first road across the United States. The highway roughly traces other historically significant travel routes in the Western United States: the Oregon Trail across Wyoming and Nebraska, the California Trail across most of Nevada and California, the first transcontinental airmail route, and except in the Great Salt Lake area, the entire route of the First Transcontinental Railroad. From near Chicago east to near Youngstown, Ohio, I-80 is a toll road, containing the majority of both the Indiana Toll Road and the Ohio Turnpike. I-80 runs concurrently with I-90 from near Portage, Indiana, to Elyria, Ohio. In Pennsylvania, I-80 is known as the Keystone Shortway, a non-tolled freeway that crosses rural north-central portions of the state on the way to New Jersey and New York City.
Delaware State Route System
U.S. Routes that run north–south have odd numbers, increasing from east to west, while those that run east–west have even numbers, increasing from north to south. Major north–south U.S. Routes have numbers ending in 1 while major east–west U.S. Routes have numbers ending in 0. Three-digit U.S. Routes serve as branches of their parent route. As such, U.S. Route 13 (US 13) runs north–south through the entire length of Delaware while US 40, a major U.S. Route running from Utah to New Jersey, passes east–west through northern New Castle County. US 113 serves as a branch of US 13 in the southern part of the state. US 9 is an exception to the numbering pattern as it runs east–west across Sussex County, though the route runs north–south in New Jersey and New York.
U.S. Route 30 in Pennsylvania
In the U.S. state of Pennsylvania, U.S. Route 30 (US 30) runs east–west across the southern part of the state, passing through Pittsburgh and Philadelphia on its way from the West Virginia state line east to the Benjamin Franklin Bridge over the Delaware River into New Jersey. In Pennsylvania, US 30 runs along or near the transcontinental Lincoln Highway, which ran from San Francisco, California to New York City before the U.S. Routes were designated. (However, the Lincoln Highway turned northeast at Philadelphia, using present U.S. Route 1 and its former alignments to cross the Delaware River into Trenton, New Jersey.)
U.S. Route 99
U.S. Route 99 (US 99) was a main north–south United States Numbered Highway on the West Coast of the United States until 1964, running from Calexico, California, on the US–Mexico border to Blaine, Washington, on the U.S.-Canada border. It was assigned in 1926 and existed until it was replaced for the most part by Interstate 5. Known also as the "Golden State Highway" and "The Main Street of California", US 99 was important throughout much of the 1930s as a route for Dust Bowl immigrant farm workers to traverse the state. Large portions are now California's State Route 99 (SR 99), Oregon Route 99, 99W, 99E and Washington's SR 99. The highway connected to British Columbia Highway 99 at the Canada–US border.
U.S. Route 52
U.S. Route 52 (US 52) is a major United States highway in the central United States that extends from the northern to southeastern region of the United States. Contrary to most other even-numbered U.S. Highways, US 52 primarily follows a northwest–southeast route, and is signed north–south or east–west depending on the local orientation of the route.
Volcanic Legacy Scenic Byway
The Volcanic Legacy Scenic Byway is an All-American Road in the U.S. states of California and Oregon. It is roughly 500 miles (800 km) long and travels through the Cascade Range past numerous volcanoes. It is composed of two separate National Scenic Byways, the Volcanic Legacy Scenic Byway - Oregon and Volcanic Legacy Scenic Byway - California. The latter also wholly includes the Lassen Scenic Byway.
Kennedy Expressway
The John F. Kennedy Expressway is a freeway in metropolitan Chicago, Illinois, in the United States that travels northwest from the neighborhood of West Loop to O'Hare International Airport. The highway is in memory of the 35th U.S. President, John F. Kennedy, and conforms to the Chicago-area convention of using the term "Expressway" for an Interstate Highway without tolls. The Interstate 90 (I-90) portion of the Kennedy is a part of the much longer I-90 (which runs from Boston, Massachusetts to Seattle, Washington). The Kennedy's official endpoints are the Circle Interchange with Interstate 290 (Eisenhower Expressway/Congress Parkway) and the Dan Ryan Expressway (also I-90/94) at the east end, and the O'Hare Airport terminals at the west end. The Interstate 190 portion of the Kennedy is long and is meant to serve airport traffic. Interstate 90 picks up the Kennedy designation and runs a further , before joining with I-94 for the final .
Pan-American Highway
The Pan-American (or Inter-American) highway passes through the Central American countries with the highway designation of CA-1 (Central American Highway 1). In Guatemala, it passes through 10 departments, including The Department Of Guatemala, where it passes through Guatemala City. In El Salvador, it passes through the cities of Santa Ana, Santa Tecla, Antiguo Cuscatlán, San Salvador, San Martín, San Miguel, and crosses the border into Honduras at Amatillo. From Honduras, it passes into Nicaragua, passing through the Nicaraguan cities of Somoto, Estelí, Sebaco, Managua, Jinotepe, and Rivas before entering Costa Rica at Peñas Blancas. In Costa Rica, it passes through Liberia, San José, Cartago, Pérez Zeledón, Palmares, Neily, before crossing into Panama at Paso Canoas. In Panama, it crosses the Panama Canal via the Centennial Bridge, and ends at Yaviza, at the edge of the Darién Gap. The road had formerly ended at Cañita, Panama, north of its current end. United States government funding was particularly significant to complete the high-level Bridge of the Americas over the Panama Canal, during the years when the canal was administered by the United States.
U.S. Route 13 in Delaware
U.S. Route 13 (US 13) is a U.S. highway running from Fayetteville, North Carolina north to Morrisville, Pennsylvania. In the U.S. state of Delaware, the route runs for . It traverses the entire length of the state from the Maryland state line in Delmar, Sussex County to the Pennsylvania state line in Claymont, New Castle County. US 13 connects many important cities and towns in Delaware, including Seaford, Dover, and Wilmington. The entire length of US 13 in Delaware is a multilane divided highway with the exceptions of the segment through Wilmington and parts of Philadelphia Pike in Claymont. Between the Maryland border and Dover, US 13 serves as one of the main north-south routes across the Delmarva Peninsula. From Dover north to the Wilmington area, the route is followed by the limited-access Delaware Route 1 (DE 1) toll road, which crosses the route several times and has multiple interchanges with it. US 13 bypasses downtown Wilmington to the east before it heads northeast of the city parallel to Interstate 495 (I-495) and the Delaware River to Claymont. US 13 is the longest numbered highway in the state of Delaware.
Interstate 275 (Ohio–Indiana–Kentucky)
Interstate 275 (I-275) is an loop in Ohio, Indiana, and Kentucky that forms a complete beltway around the Cincinnati area, and includes a part in a state (Indiana) not entered by the parent route. It had been the only auxiliary interstate that enters three states, but that changed in July 2018 when I-295 in Delaware and New Jersey was extended into Pennsylvania. It is the longest loop interstate highway in the United States, and it encloses an area of over 250,000 acres. For a short distance in northwest Hamilton County it overlaps with I-74 and U.S. Highway 52 (US 52).
U.S. Route 6
US 6 is now concurrent with Interstate 70 for a significant portion of its length from the Utah state line to Denver. Within the city limits, US 6 follows Denver's 6th Avenue (known as "6th Avenue Freeway"). The highway then travels north briefly, and it follows Interstate 76 for most of its length east of Denver. It is unsigned while it is overlapped. The highest altitude along US 6 is at Loveland Pass, where it crosses the Continental Divide. It continues down Clear Creek Valley until it reaches I-70, where it is briefly overlapped until I-70 leaves Clear Creek Valley. US 6 continues down Clear Creek and into Denver, where it turns into a freeway with six lanes. East of Denver, it continues east while joined with I-76 until it reaches Sterling, where it diverges from the interstate. The last town in Colorado that it passes is Holyoke.
U.S. Route 266
U.S. Highway 266 (US-266) is an east–west United States highway. It is only 43 miles (69 km) long, and lies entirely within the state of Oklahoma. The highway does not meet the former route of its parent, U.S. Highway 66, and is closely paralleled by Interstate 40, which replaced US-266 (along with accompanying routes US-62 from Oklahoma City to Henryetta and US-64 from Warner to the Arkansas border west of Fort Smith, Arkansas) as the major east–west highway east of Oklahoma City during the 1960s.
New York State Route 5
New York State Route 5 (NY 5) is a state highway that extends for across the state of New York in the United States. It begins at the Pennsylvania state line in the Chautauqua County town of Ripley and passes through Buffalo, Syracuse, Utica, Schenectady, and several other smaller cities and communities on its way to downtown Albany in Albany County, where it terminates at U.S. Route 9 (US 9), here routed along the service roads for Interstate 787 (I-787). Prior to the construction of the New York State Thruway, it was one of two main east–west highways traversing upstate New York, the other being US 20. West of New York, NY 5 continues as Pennsylvania Route 5 (PA 5) to Erie.
U.S. Route 30 in Ohio
U.S. Route 30 (US 30) is a United States Numbered Highway that runs from Astoria, Oregon, to Atlantic City, New Jersey. In the US state of Ohio, it is a major, , east–west highway that runs through the northern section of Ohio. Overall, the highway runs through rural areas of the state dominated by farm fields or woodlands; some segments are urban in character in the Mansfield and Canton areas.
Highway systems by country
Many paved highways for vehicles are part of the official National Highway System of the U.S.. Paved highways in the "U.S. Highway" system (for example, U.S. Highway 53) can vary from two lanes wide (one lane each direction), shoulderless, roads with no access control, to multi-lane high-speed controlled-access highway, such as the Interstate Highways. These roads are usually distinguished by being important, but not always the primary, routes that connect populated areas. (Sometimes, the primary route is a State Highway.) Since their inception many decades ago, the construction of "U.S. Highways", and their major improvements, have been paid for 50% with Federal funds, especially from motor fuel taxes, and 50% with State funds from whatever tax resources that the state has. Thus, the system of "U.S. Highways" has always been an equal partnership between the Federal Government and the State governments. This was a plan that changed dramatically with the advent of the Interstate Highway system beginning in the 1950s, but do not forget that the system of "U.S. Highways" continued to be upgraded under the 50%-50% funding. Highways continue to be widened, old bridges continue to be replaces with newer and better ones, and so forth.
U.S. Route 53
U.S. Route 53, or U.S. Highway 53 (U.S. 53), is a north–south U.S. highway that runs for 403 miles (649 km) from La Crosse, Wisconsin to International Falls, Minnesota. It is the primary north–south route in northwestern Wisconsin, serving as a vital link between I-94 at Eau Claire, Wisconsin and the city of Duluth, Minnesota. The entire route from Eau Claire to the city limits of Superior, Wisconsin is a four lane divided highway. The highway's northern terminus is at the Fort Frances-International Falls Bridge in International Falls, Minnesota, at the Canada–US border. Its southern terminus is in La Crosse, Wisconsin, at U.S. Highway 14.
Delaware
One major branch of the U.S. Interstate Highway System, Interstate 95 (I-95), crosses Delaware southwest-to-northeast across New Castle County. In addition to I-95, there are six U.S. highways that serve Delaware: U.S. Route 9 (US 9), US 13, US 40, US 113, US 202, and US 301. There are also several state highways that cross the state of Delaware; a few of them include Delaware Route 1 (DE 1), DE 9, and DE 404. US 13 and DE 1 are primary north-south highways connecting Wilmington and Pennsylvania with Maryland, with DE 1 serving as the main route between Wilmington and the Delaware beaches. DE 9 is a north-south highway connecting Dover and Wilmington via a scenic route along the Delaware Bay. US 40, is a primary east-west route, connecting Maryland with New Jersey. DE 404 is another primary east-west highway connecting the Chesapeake Bay Bridge in Maryland with the Delaware beaches. The state also operates two toll highways, the Delaware Turnpike, which is I-95, between Maryland and New Castle and the Korean War Veterans Memorial Highway, which is DE 1, between Wilmington and Dover.
Jefferson Highway
The Jefferson Highway was an automobile highway stretching through the central United States from New Orleans, Louisiana, to Winnipeg, Manitoba, Canada. The Jefferson Highway was replaced with the new numbered US Highway system in the late 1920s. Portions of the highway are still named Jefferson Highway, for example: the portions that run through Jefferson Parish, Louisiana; East Baton Rouge Parish, Louisiana; Lee's Summit, Missouri; Osseo, Minnesota; and Wadena, Minnesota.
U.S. Route 60 in Arizona
U.S. Route 60 (US 60) is an east–west United States Highway within Arizona. The highway runs for from a junction with Interstate 10 near Quartzsite to the New Mexico State Line near Springerville. As it crosses the state, US 60 overlaps at various points: I-17, I-10, SR 77, SR 260, US 191, and US 180. Between Wickenburg and Phoenix, the route is known as Grand Avenue (or the Phoenix–Wickenburg Highway). From Tempe to Apache Junction, it is known as the Superstition Freeway.
CanAm Highway
CanAm Highway is an international highway that connects Mexico to Canada through the United States. It travels along U.S. Route 85 (US 85) and Interstate 25 (I-25), passing through six U.S. states (Texas, New Mexico, Colorado, Wyoming, South Dakota, North Dakota) and the Canadian province of Saskatchewan. The CanAm highway in Canada comprises Saskatchewan Highway 35 (SK 35), SK 39, SK 6, SK 3, and SK 2. The route continues south in Mexico as Mexican Federal Highway 45 (Fed. 45), and north in Canada as SK 102 but are not labeled the CanAm highway.
Jefferson Davis Highway
Although it may not be possible to view the entire length of the highway on a map today, many parts of it still exist, scattered across the country. This is an incomplete listing of some of the places today where one can see pieces of the Jefferson Davis highway.The Jefferson Davis Highway traverses through the state for . Starting at the Virginia state line along US 15 to Sanford; then on US 1 from Sanford to the South Carolina state line. Designation of highway was approved on May 28, 1955.
Interstate 73
Interstate 73 (I-73) is an Interstate Highway, located within the U.S. state of North Carolina. It is part of a longer planned corridor, defined by various federal laws to run from Myrtle Beach, South Carolina, to Sault Ste. Marie, Michigan, but only the part south of West Virginia is under study as of 2012. The corridor passes through the states of South Carolina, North Carolina, Virginia, West Virginia, Ohio, and Michigan. Ohio and Michigan do not plan to build any part of the highway, as the I-73 corridor in both of these states is already served by existing freeways or 4-lane highways that will eventually be upgraded to freeways. West Virginia is building its section, mostly along U.S. Highway 52, as a four-lane divided highway, but not meeting the Interstate Highway standards. On the other hand, North Carolina and South Carolina have built sections and Virginia plans to build its part. Thus Interstate 73 will, once scheduled projects are completed, run from South Carolina to Roanoke, Virginia, where it will end at Interstate 81. Associated with these plans are those for the extension of Interstate 74 from Cincinnati to Myrtle Beach, with several highway overlaps contemplated.
U.S. Route 20 in Massachusetts
The cross-country U.S. Route 20 runs its easternmost in the U.S. state of Massachusetts. The highway crosses the state border from New Lebanon, New York, into Hancock, Massachusetts, and runs eastward into Boston, where it ends at Route 2 in Kenmore Square. It spends the vast majority of its journey paralleling the Massachusetts Turnpike, which has largely superseded US-20 for through travel. Still, US-20 directly serves many towns and local business areas which the Turnpike bypasses.
U.S. Route 40
Starting at its western terminus in Utah, US 40 crosses a total of 12 states, including Colorado, Kansas, Missouri, Illinois, Indiana, Ohio, West Virginia, Pennsylvania, Maryland, Delaware, and New Jersey. Three former and four current state capitals lie along the route. For much of its route, US 40 runs parallel to or concurrently with several major Interstate Highways: Interstate 70 from Colorado to Washington, Pennsylvania; and again from Hancock, Maryland to Baltimore, Maryland; Interstate 64 in parts of Missouri and Illinois; Interstate 68 along the Maryland Panhandle; and Interstate 95 from Baltimore to New Castle, Delaware.
U.S. Route 93 Alternate (Nevada)
Alt 93 has origins dating back to the early auto trails. The portion of the route between Lages Station and West Wendover was originally part of the Lincoln Highway, the first road across America. This segment was originally designated as a portion of US 50. When the US highway system was developed in 1926 the routing of US 50 followed what is now US 93 between Ely and Lages Station and then continued on to West Wendover. From there, it followed US 40 (now Interstate 80) east across the Great Salt Lake Desert in Utah, through Salt Lake City, south along US 91 (now Interstate 15) to Provo, Utah. This designated remained until approximately 1952, when it was redesignated US 50 Alternate. Utah decommissioned portions of Alt 50 in 1972.
U.S. Route 20
U.S. Highway 20 (US 20) is an east–west United States highway that stretches from the Pacific Northwest all the way to New England. The "0" in its route number indicates that US 20 is a coast-to-coast route. Spanning , it is the longest road in the United States, and particularly from Newport, Oregon to Boston, Massachusetts, the route is roughly parallel to that of the newer Interstate 90 (I-90), which is in turn the longest Interstate Highway in the U.S. There is a discontinuity in the official designation of US 20 through Yellowstone National Park, with unnumbered roads used to traverse the park.
Pan-American Highway
The Alaska Highway through Alaska, Yukon and British Columbia is commonly considered a de facto northerly extension of the Pan-American Highway, as well as the Dalton Highway in Alaska. In Canada, no particular road has been officially designated as the Pan-American Highway. The National Highway System, which includes but is not limited to the Trans-Canada Highway, is the country's only official interprovincial highway system. However, there are several Canadian routes that are a natural extension of several key American highways that reach the Canada–US border. British Columbia Highway 97 and Highway 2 to Alberta both pick up where the southern end of the Alaska highway leaves off. Highway 97 becomes U.S. Route 97 at the Canada–US border. British Columbia Highway 99 provides an alternate route from Highway 97 just north of Cache Creek that runs through Whistler and Vancouver before ending at the Canada–US border at the north end of Interstate 5 in Washington State, the beginning of the official Pan-American route south of British Columbia. Meanwhile, Alberta Highway 2 runs south and east to Alberta Highway 3 leading into Lethbridge, then south on Alberta Highway 4 to the Canada–US border where it becomes Interstate 15 in Montana, the first official stretch of the Pan-American Highway south of the Alberta route.
U.S. Route 6 in California
U.S. Route 6 (US 6) is a transcontinental highway from the U.S. state of California to Massachusetts. In California, the highway lies in the eastern portion of the state from Bishop in the Owens Valley north to the Nevada state line in Mineral County. Prior to a 1964 Highway renumbering project US 6 extended to the Pacific Ocean in Long Beach, California, as part of the historic auto trail named the Grand Army of the Republic Highway.
Interstate 69
Interstate 69 (I-69) is an Interstate Highway in the United States currently consisting of seven disjointed parts with an original continuous segment from Indianapolis, Indiana, northeast to the Canada–US border in Port Huron, Michigan, at . The remaining separated parts are variously completed and posted or unposted parts of an extension southwest to the Mexican border in Texas. Of this extension—nicknamed the NAFTA Superhighway because it would help trade with Canada and Mexico spurred by the North American Free Trade Agreement—five pieces near Corpus Christi, Houston, northwestern Mississippi, Memphis, and Evansville have been newly built or upgraded and signposted as I-69. A sixth segment of I-69 through Kentucky utilizing that state's existing parkway system and a section of I-24 was established by federal legislation in 2008, but only a portion is signposted. A section of the previously existing Western Kentucky Parkway from Eddyville to Nortonville was approved and signposted in late 2011, with the Pennyrile Parkway between Nortonville and Henderson being signed as I-69 in 2015. This brings the total length to about .
U.S. Route 1 in Virginia
U.S. Route 1 (US 1) is a major north–south U.S. Highway that serves the East Coast of the United States. In the U.S. state of Virginia, US 1 runs north–south through South Hill, Petersburg, Richmond, Fredericksburg, and Alexandria on its way from North Carolina to the 14th Street Bridge into the District of Columbia. It is completely paralleled by Interstate Highways in Virginia – Interstate 85 south of Petersburg, Interstate 95 north to Alexandria, and Interstate 395 into the District – and now serves mainly local traffic. At its north end, on the approach to the 14th Street Bridge, US 1 is concurrent with I-395; the rest of US 1 is on surface roads.
Victory Highway
The Victory Highway was an auto trail across the United States between New York City and San Francisco, roughly equivalent to the present U.S. Route 40. It was created by the Victory Highway Association, which was organized in 1921 to locate and mark a transcontinental highway to be dedicated to American forces who died in World War I. A series of Victory Eagle sculptures would mark the route, although only six were completed.
By 1922 the organization had decided to run the highway from New York City southwest to Camden, New Jersey; Philadelphia; Wilmington, Delaware; Baltimore; and Washington, D.C. before turning west to San Francisco. Washington was later removed from the route, and the highway was relocated to run west from Baltimore to Cumberland, Maryland. At Cumberland, it picked up the old National Road to Vandalia, Illinois, which was already marked as part of the National Old Trails Road. It continued to follow that auto trail near Fulton, Missouri, and then followed a different route across the rest of that state, passing through Jefferson City on its way to Kansas City. The highway continued west from Kansas City to Denver over the Golden Belt Highway, and then ran via Salt Lake City, across the Great Salt Lake Desert on the Wendover Cut-off and into Nevada. After crossing the Sierra Nevada mountain range into California, the highway went through Sacramento, through the Sacramento–San Joaquin River Delta over what is now State Route 160, crossed over the Antioch Bridge, passed through the Broadway Tunnel, and ended in San Francisco.
Mount Vernon, Texas
Bankhead Highway Visitor Center – The Bankhead Highway, which opened in 1919 and ran from Washington D.C. to San Diego, was the nation’s first all-weather transcontinental highway. It passes through Franklin County and serves as Mount Vernon's Main Street and follows an early Indian trading route known as the Choctaw Trail. By 1930 it was renumbered as U. S. No. 1 and was called "The Broadway of America." The Bankhead Highway Route was changed in 1937 and follows present U. S. Hwy 67. 
The Visitor Center is one fourth mile west of U.S. Highway 37 on CR NW 1017. Just follow Main Street to the west past Highway 37. The Visitor Center includes the Lowry Pavilion, which is available to rent for special outdoor occasions, and the Dupree Park Nature Preserve and Nature Trail, a mile and a half walk through the property with special marked stations for bird sightings. Though the property gates are locked at off hours, a pedestrian gate allows admittance for individual use from dawn until dusk. A printed trail guide is available in the Visitor Center.
Route number
The Interstate Highway System, indicated by a red and blue shield with white numbers, is a system of entirely freeways (unlike the U.S. Highway System, which is mostly undivided surface roads). The Interstate System is also based on a grid, with east–west routes bearing even numbers and north–south routes bearing odd numbers. In order to prevent confusion with the earlier U.S. Highway System, however, the Interstates are numbered in the opposite direction, such that the lowest routes numbers are in the south and west, and the highest numbers in the north and east. Major routes end in either a "0" or a "5"; for example Interstate 10 spans the country from Jacksonville, Florida, to Santa Monica, California, while Interstate 35 goes from the Mexican border to the Great Lakes. Like with U.S. Highways, subsidiary routes are numbered by adding a hundreds digit to the parent route. Because of the large number of these routes, three-digit numbers may be repeated within the system, but unique to each state. Additionally, the parity of the hundreds digit tells the nature of the spur route: odd hundreds digits like Interstate 393 only connect to the system at one end (forming "spurs"), while an even hundreds digit like Interstate 440 indicates that the highway connects to another Interstate at both ends (forming loops).
U.S. Route 6
U.S. Route 6 (US 6), also called the Grand Army of the Republic Highway, honoring the American Civil War veterans association, is a main route of the U.S. Highway system. While it currently runs east-northeast from Bishop, California to Provincetown, Massachusetts, the route has been modified several times. The highway's longest-lasting routing, from 1936 to 1964, had its western terminus at Long Beach, California. During this time, US 6 was the longest highway in the country.
U.S. Route 66
U.S. Route 66 (US 66 or Route 66), also known as the Will Rogers Highway, the Main Street of America or the Mother Road, was one of the original highways in the U.S. Highway System. US 66 was established on November 11, 1926, with road signs erected the following year. The highway, which became one of the most famous roads in the United States, originally ran from Chicago, Illinois, through Missouri, Kansas, Oklahoma, Texas, New Mexico, and Arizona before ending in Santa Monica, California, near Los Angeles, covering a total of . It was recognized in popular culture by both the hit song "(Get Your Kicks on) Route 66" and the "Route 66" television show in the 1960s. In John Steinbeck's classic-American novel, "The Grapes of Wrath" (1939), the road, "Highway 66", was turned into a powerful symbol of escape and loss.
U.S. Route 66
Before a nationwide network of numbered highways was adopted by the states, named auto trails were marked by private organizations. The route that would become US 66 was covered by three highways. The Lone Star Route passed through St. Louis on its way from Chicago to Cameron, Louisiana, though US 66 would take a shorter route through Bloomington rather than Peoria. The transcontinental National Old Trails Road led via St. Louis to Los Angeles, but was not followed until New Mexico; instead US 66 used one of the main routes of the Ozark Trails system, which ended at the National Old Trails Road just south of Las Vegas, New Mexico. Again, a shorter route was taken, here following the Postal Highway between Oklahoma City and Amarillo. Finally, the National Old Trails Road became the rest of the route to Los Angeles.
U.S. Route 30
U.S. Route 30 (US 30) is an east–west main route of the system of United States Numbered Highways, with the highway traveling across the northern tier of the country. It is the third longest U.S. route, after U.S. Route 20 and U.S. Route 6. The western end of the highway is at Astoria, Oregon; the eastern end is in Atlantic City, New Jersey. Despite long stretches of parallel and concurrent Interstate Highways, it has not been decommissioned unlike other long haul routes such as U.S. Route 66.
Theodore Roosevelt International Highway
The highway left Maine through the White Mountains of New Hampshire and the Green Mountains of Vermont to cross Lake Champlain by ferry into New York. The highway went through Ontario from Niagara Falls to Windsor and from Detroit through Michigan's Upper Peninsula to Duluth, Minnesota, and then through North Dakota and Montana. The highway passed through northern Idaho and Yakima, Washington, to follow the Columbia River into Oregon. U.S. Route 2 (US 2) was numbered along similar routing through the United States in 1926, although neither Portland was included. The eastern end of the Theodore Roosevelt International Highway was designated US 302 in 1935, and is still known locally as the "Roosevelt Trail".
Appalachian Development Highway System
Corridor D travels east-west from Interstate 275 (I-275), near Cincinnati, Ohio, to I-79, near Bridgeport, West Virginia. The corridor utilizes Ohio State Route 32 (SR 32) and U.S. Route 50 (US 50).
Interstate 68 (I-68) is a Interstate highway in the U.S. states of West Virginia and Maryland, connecting I-79 in Morgantown to I-70 in Hancock. I-68 is also Corridor E of the Appalachian Development Highway System. From 1965 until the freeway's construction was completed in 1991, it was designated as U.S. Route 48 (US 48). In Maryland, the highway is known as the National Freeway, an homage to the historic National Road, which I-68 parallels between Keysers Ridge and Hancock. The freeway mainly spans rural areas, and crosses numerous mountain ridges along its route. A road cut constructed for it through Sideling Hill exposed geological features of the mountain and has become a tourist attraction.
Transportation in the United States
The Interstate system joined an existing National Highway System (a designation created for the legacy highway network in 1995), comprising 160,000 miles (256,000 kilometers) of roadway, a fraction of the total mileage of roads. The Interstate system serves nearly all major U.S. cities, often through the downtown areas (a point which triggered freeway and expressway revolts in the 1960s and 1970s). The distribution of virtually all goods and services involves Interstate highways at some point. Residents of American cities commonly use urban Interstates to travel to their places of work. The vast majority of long-distance travel, whether for vacation or business, is by the national road network; of these trips, about one-third (by the total number of miles driven in the country in 2003) utilize the Interstate system.
U.S. Route 2 in Michigan
US Highway 2 (US 2) is a component of the United States Numbered Highway System that connects Everett, Washington, to the Upper Peninsula (UP) of the US state of Michigan, with a separate segment that runs from Rouses Point, New York, to Houlton, Maine. In Michigan, the highway runs through the UP in two segments as a part of the state trunkline highway system, entering the state at Ironwood and ending at St. Ignace; in between, US 2 briefly traverses the state of Wisconsin. As one of the major transportation arteries in the UP, US 2 is a major conduit for traffic through the state and neighboring northern Midwest states. Two sections of the roadway are included as part of the Great Lakes Circle Tours, and other segments are listed as state-designated Pure Michigan Byways. There are several memorial highway designations and historic bridges along US 2 that date to the 1910s and 1920s. The highway runs through rural sections of the UP, passing through two national and two state forests in the process.
Appalachian Development Highway System
Corridor W is a highway in the U.S. states of South Carolina and North Carolina. It is routed entirely along U.S. Route 25 (US 25); from Interstate 85 (I-85), in Greenville, South Carolina, to I-26, near East Flat Rock, North Carolina. The entire corridor is four-lane, that is expressway grade in South Carolina and freeway grade in North Carolina. Of the entire route, only was authorized for ADHS funding. In the 2013 fiscal year, both states completed their sections of Corridor W; South Carolina also became the first state to complete its entire ADHS miles of any of the 13 Appalachian states.
U.S. Route 80 in Alabama
U.S. Route 80 (US 80) also known as the Dixie Overland Highway, is a major U.S. Highway in the American state of Alabama. The Alabama Department of Transportation internally designated the majority of US 80 throughout the state as State Route 8, save for parts of the route through Selma and near the Mississippi border. Serving as the main east to west highway through Alabama's Black Belt region, US 80 is well known for its role in the events surrounding the Selma to Montgomery marches in 1965, being the route taken by the demonstrators between the two cities as well as being the site of Bloody Sunday. The highway was also once a major transcontinental highway once reaching from Savannah, Georgia to San Diego, California but has since been truncated to Dallas, Texas due to largely being replaced by the Interstate Highway System.
U.S. Route 163
U.S. Route 163 (also U.S. Highway 163, US 163) is a U.S. Highway that runs from US 160 northward to US 191 in the U.S. states of Arizona and Utah. The southernmost of its length are within the Navajo Nation. The highway forms part of the Trail of the Ancients, a National Scenic Byway. The highway cuts through the heart of Monument Valley and has been featured in numerous movies and commercials.
U.S. Route 67 in Iowa
U.S. Highway 67 (US 67) is a U.S. Highway in extreme eastern Iowa. The route begins in Davenport at the Rock Island Centennial Bridge where it crosses the Mississippi River and ends at an intersection with US 52 and Iowa Highway 64 (Iowa 64) west of Sabula. It passes through Bettendorf, Le Claire, and Clinton. Except for Folletts, every community which US 67 enters sits along the Mississippi River. As such, the entire route is part of the Great River Road, an All-American Road.
Utah State Route 30
State Route 30 (SR-30) is a state highway in the U.S. state of Utah. It is the only highway signed as a Utah state route (with the beehive shaped route marker) to traverse the entire width of the state. Legislatively the highway exists as 3 separate segments. With implied connections via Interstate 84 and U.S. Route 89, the highway is drivable as a continuous route from Nevada to Wyoming. The western segment is a historic corridor paralleling the pre-Lucin Cutoff routing of the First Transcontinental Railroad. A portion of the eastern segment has been designated the Bear Lake Scenic Byway as part of the Utah Scenic Byways program. The route was created in 1966 by combining several state highways into a single designation.
National Highway System (United States)
According to the Federal Highway Administration, the National Highway System includes roads important to the United States' economy, defense, and mobility, from one or more of the following road networks (specific routes may be part of more than one sub-system):The system includes 4% of the nation's roads, but carries more than 40% of all highway traffic, 75% of heavy truck traffic, and 90% of tourist traffic. All urban areas with a population of over 50,000 and about 90% of America's population live within of the network, which is the longest in the world.
U.S. Route 17
U.S. Route 17 or U.S. Highway 17 (abbreviation U.S. 17, US 17, also known as the Coastal Highway) is a north–south United States highway. The highway spans the southeastern United States and is close to the Atlantic Coast for much of its length. The highway's southern terminus is at Punta Gorda, Florida, at an intersection with US 41. Traveling north, US 17 joins up with US 50 in Paris, Virginia, and the northern terminus of US 17 is in downtown Winchester, Virginia. This is also the point at which the portion of US 50 called the Northwestern Turnpike begins.
Continental Divide Trail
The Continental Divide National Scenic Trail (in short Continental Divide Trail (CDT)) is a United States National Scenic Trail running between Mexico and Canada. It follows the Continental Divide of the Americas along the Rocky Mountains and traverses five U.S. states — Montana, Idaho, Wyoming, Colorado, and New Mexico. In Montana it crosses Triple Divide Pass (near Triple Divide Peak which separates the Hudson Bay, Atlantic Ocean and Pacific Ocean drainages.) The trail is a combination of dedicated trails and small roads and considered 70% complete. Portions designated as uncompleted must be traveled by roadwalking on dirt or paved roads. This trail can be continued north into Canada to Kakwa Lake north of Jasper National Park by the Great Divide Trail.
Pan-American Highway
In 1966, the Federal Highway Administration designated the entire Interstate Highway System part of the Pan-American Highway System, although this has never been reflected in any of the official interstate signage. Of the many freeways that make up this very comprehensive system, there are several that stand out because of their mainly north-south orientation and their links to the main Mexican route and its spurs as well as to key routes in Canada that link to the Alaska Highway. These include the following:Several North American routes have names that make no direct reference to the Pan-American Highway, in part because some sections follow highways that are not up to full freeway standardThe official route of the Pan-American Highway through Mexico (where it is known as the Inter-American Highway) starts at Nuevo Laredo, Tamaulipas (opposite Laredo, Texas) and goes south to Mexico City along Mexican Federal Highway 85. Later branches were built to the border as follows:
U.S. Route 522 in Maryland
U.S. Route 522 (US 522) is a part of the U.S. Highway System that runs from Powhatan, Virginia to Selinsgrove, Pennsylvania. In Maryland, it runs from the West Virginia state line at the Potomac River north to the Pennsylvania state line within Hancock in western Washington County. US 522 crosses Maryland at its narrowest north–south point, meeting Maryland Route 144 (MD 144), Interstate 70 (I-70), US 40, and I-68 before entering Pennsylvania concurrent with I-70. Warfordsburg Road from US 40 (now MD 144) north to Pennsylvania was paved around 1920 and designated US 522 in the late 1920s. US 522 was extended south into West Virginia shortly after a new bridge was completed over the Potomac River in the late 1930s. It was moved onto I-70 north of Hancock when the Interstate highway was completed in the area in the mid 1960s.
Interstate 95 in New York
Interstate 95 (I-95) is a part of the Interstate Highway System that runs from Miami, Florida, to the Canada–United States border near Houlton, Maine. In the U.S. state of New York, I-95 extends from the George Washington Bridge in New York City to the Connecticut state line at Port Chester. From the George Washington Bridge, which carries I-95 across the Hudson River from New Jersey into New York City, it runs across upper Manhattan on the Trans-Manhattan Expressway and continues east across the Harlem River on the Alexander Hamilton Bridge and onto the Cross Bronx Expressway. In the Bronx, I-95 leaves the Cross Bronx at the Bruckner Interchange, joining the Bruckner Expressway to its end. North of the interchange with Pelham Parkway, it then continues northeast via the New England Thruway (which is part of the New York State Thruway system) out of New York City into Westchester County and to the Connecticut state line, where I-95 continues on the Connecticut Turnpike.
Interstate 95 in Pennsylvania
Interstate 95 (I-95) is an Interstate highway running from Miami, Florida, north to Houlton, Maine. In the U.S. state of Pennsylvania, it runs from the Delaware state line near Marcus Hook to the Delaware River–Turnpike Toll Bridge at the New Jersey state line. From the Delaware state line to exit 40, the route is known by many as the Delaware Expressway, but is officially named the Vietnam Veterans Memorial Highway. North(east) of exit 40, I-95 runs along the easternmost portion of the Pennsylvania Turnpike. I-95 parallels its namesake Delaware River for its entire route through the city of Philadelphia and its suburbs. It is a major route through the city and the metropolitan Delaware Valley, providing access to locally important landmarks such as Philadelphia International Airport, the South Philadelphia Sports Complex, Talen Energy Stadium, Penn's Landing, and Philadelphia Mills. Of the 15 states that Interstate 95 runs through, Pennsylvania is the only one that does not border the Atlantic Ocean.
U.S. Route 6 in Ohio
U.S. Route 6 (US 6) is a part of the United States Numbered Highway System that runs from Bishop, California to Provincetown, Massachusetts. US 6 is the second longest federal highway in the United States, second only to U.S. Route 20. In Ohio, the road runs west-east from the Indiana state line near Edgerton to the Pennsylvania state line near Andover. The that lie in Ohio are maintained by the Ohio Department of Transportation (ODOT). US 6 serves the major cities of Sandusky, Lorain, and Cleveland. The highway is also called the Grand Army of the Republic Highway to honor the Union forces of the American Civil War. The alternate name was designated in 1953.
U.S. Route 278
U.S. Route 278 is a parallel route of U.S. Route 78. It currently runs for 1,074 miles (1,728 km) from Hilton Head Island, South Carolina to Wickes, Arkansas at U.S. Route 71/U.S. Route 59. It is longer than its parent highway, US 78. US 278 passes through the states of South Carolina, Georgia, Alabama, Mississippi, and Arkansas. This highway passes through the cities and towns of Augusta, Covington, Atlanta, Powder Springs, Hiram, Dallas, Rockmart, and Cedartown, Georgia; Gadsden and Cullman, Alabama; Tupelo, Oxford, and Greenville, Mississippi; and Monticello and Hope, Arkansas.
U.S. Route 9 in New Jersey
U.S. Route 9 (US 9) is a U.S. highway in the northeast United States, running from Laurel, Delaware north to Champlain, New York. In New Jersey, the route runs from the Cape May–Lewes Ferry terminal in North Cape May, Cape May County, where the ferry carries US 9 across the Delaware Bay to Lewes, Delaware, north to the George Washington Bridge in Fort Lee, Bergen County, where the route along with Interstate 95 (I-95) and US 1 continue into New York City. US 9 is the longest U.S. highway in the state. From North Cape May north to Toms River in Ocean County, US 9 is mostly a two-lane undivided road that closely parallels the Garden State Parkway and runs near the Jersey Shore. Along this stretch, it passes through the communities of Rio Grande, Cape May Court House, Somers Point, Pleasantville, Absecon, Tuckerton, Manahawkin, Beachwood and Berkeley Township. In the Toms River area, US 9 runs along the Garden State Parkway for a short distance before heading northwest away from it and the Jersey Shore into Lakewood Township. Upon entering Monmouth County, the route transitions into a multilane suburban divided highway and continues through Howell Township, Freehold Township, Manalapan Township, Marlboro Township, Old Bridge Township, Sayreville, and South Amboy. In Woodbridge Township, US 9 merges with US 1 and the two routes continue through northern New Jersey as US 1/9 to the George Washington Bridge.
U.S. Route 42
U.S. Route 42 (US 42) is an east–west United States highway that runs southwest-northeast for from Louisville, Kentucky to Cleveland, Ohio. The route has several names including Pearl Road from Cleveland to Medina in Northeast Ohio, Reading Road in Cincinnati, Cincinnati and Lebanon Pike in southwestern Ohio and Brownsboro Road in Louisville. Traveling east, the highway ends in downtown Cleveland, Ohio; and traveling west it ends in Louisville.
Ocean Highway
The Ocean Highway began in Jacksonville, Florida, where it headed to the north on U.S. Route 17, following that route until Virginia. It continued from Florida into Georgia and headed toward Savannah. Within the state of South Carolina, the Ocean Highway ran along the state’s coast, passing through Charleston and Myrtle Beach. In North Carolina, the highway served the cities of Wilmington, Jacksonville, New Bern, and Elizabeth City. The Ocean Highway passes through the Great Dismal Swamp on the border of North Carolina and Virginia before reaching the city of Norfolk, Virginia. At this point, the Ocean Highway shifted from US 17 to U.S. Route 13, and followed that route through Virginia Beach before coming to a ferry across the Chesapeake Bay. From here, the Ocean Highway ran the length of the Eastern Shore of Virginia before coming into Maryland. In Maryland, the Ocean Highway followed US 13 and passed through the city of Salisbury. Continuing into Delaware, the road passed through Dover before coming to Hares Corner, where the Ocean Highway split from US 13 and joined U.S. Route 40. The Ocean Highway crossed the Delaware River into New Jersey and continued to the northeast on U.S. Route 130. It passed through the Camden and Trenton areas before ending in North Brunswick.
U.S. Route 30 in Oregon
In the U.S. state of Oregon, U.S. Route 30, a major east–west U.S. Highway, runs from its western terminus in Astoria to the Idaho border east of Ontario. West of Portland, US 30 generally follows the southern shore of the Columbia River; east of Portland the highway has largely been replaced with Interstate 84, though it is signed all the way across the state, and diverges from the I-84 mainline in several towns, as a "de facto" business route. (The state of Oregon does not sign Interstate business routes; instead it uses the designations US 30 and Oregon Route 99 (along the Interstate 5 corridor) for this purpose.) Out of all the states U.S. Route 30 traverses, it spends the most time in Oregon.
U.S. Route 62 in Arkansas
U.S. Route 62 is a U.S. highway running from El Paso, Texas northeast to Niagara Falls, New York. In the U.S. state of Arkansas, the route runs 329.9 miles from the Oklahoma border near Summers east to the Missouri border in St. Francis, serving the northern portion of the state. The route passes through several cities and towns, including Fayetteville, Springdale, Bentonville, Harrison, Mountain Home, Pocahontas, and also Piggott. US 62 runs concurrent with several highways in Arkansas including Interstate 49 and U.S. Route 71 between Fayetteville and Bentonville, U.S. Route 412 through much of the state, U.S. Route 65 in the Harrison area, and with U.S. Route 63 and U.S. Route 67 in northeast Arkansas.
U.S. Route 6
US 6 is a diagonal route, whose number is out of sequence with the rest of the U.S. Highway grid in the western US. When it was designated in 1926, US 6 only ran east of Erie, Pennsylvania. Subsequent extensions, largely replacing the former U.S. Route 32 (US 32) and U.S. Route 38 (US 38), have taken it south of US 30 near Chicago, Illinois, US 40 near Denver, Colorado (past the end of US 38), US 50 at Ely, Nevada, and even US 70 near Los Angeles, California, due to its north–south alignment in that state.
Pocono Mountains
There are two U.S. Highways in the Pocono Mountains region. The most used is U.S. Route 209, which goes from Ulster, New York to Millersburg, Pennsylvania (near Harrisburg). The halfway point of the route is in the region north of Stroudsburg. The other main U.S. Highway in the region is U.S. Route 6, which is a transcontinental highway that starts near Bishop, California and runs for over 3,000 miles to its eastern terminus in Provincetown, Massachusetts. It is designated a scenic route in Pennsylvania. U.S. Route 11, U.S. Route 22, and U.S. Route 46 are also not far from the region and serve it indirectly.
U.S. Route 33
U.S. Route 33 (US 33) is a United States Numbered Highway that runs northwest–southeast for 709 miles (1,141 km) from northern Indiana to Richmond, Virginia, passing through Ohio and West Virginia en route. Although most odd-numbered U.S. routes are north–south, US 33 is labeled east–west throughout its route except in Indiana where it is labeled north–south.
U.S. Route 41 in Florida
U.S. Route 41 (US 41) in the U.S. state of Florida is a north–south United States Highway. It runs from Miami in South Florida northwest to the Georgia border north of the Lake City area. Within the state, US 41 is paralleled by Interstate 75 (I-75) all the way from Miami to Georgia (on the northern border), and I-75 has largely supplanted US 41 as a major highway.
Interstate Highway System
The Dwight D. Eisenhower National System of Interstate and Defense Highways, commonly known as the Interstate Highway System, is a network of controlled-access highways that forms part of the National Highway System in the United States. The system is named for President Dwight D. Eisenhower, who championed its formation. Construction was authorized by the Federal Aid Highway Act of 1956, and the original portion was completed 35 years later, although some urban routes were cancelled and never built. The network has since been extended. In 2016, it had a total length of . , about one-quarter of all vehicle miles driven in the country use the Interstate system. In 2006, the cost of construction was estimated at about $425 billion (equivalent to $ in ).
Interstate 80
Interstate 80 (I-80) is an east–west transcontinental freeway in the United States that runs from downtown San Francisco, California, to Teaneck, New Jersey, in the New York City Metropolitan Area. The highway was designated in 1956 as one of the original routes of the Interstate Highway System. Its final segment was opened to traffic in 1986. It is the second-longest Interstate Highway in the United States, following I-90. The Interstate runs through many major cities including Oakland, Sacramento, Reno, Salt Lake City, Omaha, Des Moines, and Toledo, and passes within of Chicago, Cleveland, and New York City.
U.S. Route 52 in West Virginia
U.S. Route 52 (US 52) skirts the western fringes of the U.S. state of West Virginia. It runs from the Virginia state line near Bluefield, where it is concurrent with Interstate 77 (I-77), in a general northwest and north direction to I-64 at Kenova. There it turns east, overlapping I-64 for before splitting off onto the West Huntington Expressway into Ohio via the West Huntington Bridge. Despite having an even number, US 52 is signed north–south in West Virginia. In some other states along its route, it is signed east-west. The West Virginia segment is signed such that US 52 north corresponds to the general westward direction of the highway, and vice versa. For a while, US 52 parallels US 23, which is on the other side of the Big Sandy River in Kentucky. This continues into Ohio, where US 52 travels on the Ohio side of the Ohio River while US 23 travels on the Kentucky side.
Interstate 90 in Washington
Interstate 90 (I-90) is a transcontinental Interstate Highway that runs from Seattle, Washington, to Boston, Massachusetts. It crosses Washington state from west to east, traveling from Seattle across the Cascade Mountains and into Eastern Washington, reaching the Idaho state line east of Spokane. I-90 intersects several major north–south highways, including I-5 in Seattle, I-82 and U.S. Route 97 (US 97) near Ellensburg, and US 395 and US 2 in Spokane.
U.S. Route 72
U.S. Route 72 (US 72) is an east–west United States highway that travels for from southwestern Tennessee, North Mississippi, North Alabama, and southeastern Tennessee. The highway's western terminus is in Memphis, Tennessee and its eastern terminus is in Chattanooga. It is the only U.S. Highway to begin and end in the same state, yet pass through other states in between. Prior to the U.S. Highway system signage being posted in 1926, the entire route was part of the Lee Highway.
U.S. Route 101
U.S. Route 101, or U.S. Highway 101 (US 101) is a north–south United States Numbered Highway that runs through the states of California, Oregon, and Washington, on the West Coast of the United States. It is also known as (The Royal Road) where its route along the southern and central California coast approximates the old trail which linked the Spanish missions, pueblos, and presidios. It merges at some points with California State Route 1 (SR 1).
U.S. Route 10 in Minnesota
U.S. Highway 10 (US 10) is a major divided highway for almost all of its length in the U.S. state of Minnesota. The route runs through the central portion of the state, following generally the alignment of the former Northern Pacific Railway (now BNSF) and connects the cities of Moorhead, Detroit Lakes, Wadena, Little Falls, St. Cloud, Anoka, Saint Paul, and Cottage Grove. US 10 within Minnesota is in length.
U.S. Route 5
US 5 runs through three states, Connecticut, Massachusetts, and Vermont, with the latter containing over half of US 5's total distance. Throughout nearly all of U.S. 5's entire length, it remains its own road entirely separate from Interstate 91, which has largely replaced it as a through route (and now carries most of the traffic). It is only co-signed onto I-91 for less than half of a mile in Springfield, MA, before splitting off alone again.
Transportation in North America
The United States road network is the largest in the world, with 6.4 million km (4 million mi) of roadways. of those are Interstate Highways, and around another are U.S. Highways. The Interstate Highway system is almost completely composed of multi-lane, dual-carriageway freeways. The contiguous United States are also connected to its exclave, Alaska, via the Alaska Highway, which links the state to Yukon Territory, British Columbia, and the Lower 48 states. The continental United States is disconnected from the state of Hawaii and various insular areas in Oceania.
U.S. Route 95
U.S. Route 95 (US 95) is a north–south U.S. highway in the western United States. Unlike many other US highways, it has not seen deletion or replacement on most of its length by an encroaching Interstate highway corridor, due to its mostly rural course. Because of this, it still travels from border to border and is a primary north–south highway in both Nevada and Idaho. This is one of the only US Routes or Interstate highways to cross from Mexico to Canada.
U.S. Route 12 in Washington
U.S. Route 12 (US 12) is a major east-west U.S. Highway, running from Aberdeen, Washington, to Detroit, Michigan. It spans across the state of Washington, and is the only numbered highway to span the entire state from west to east, starting near the Pacific Ocean, and crossing the Idaho state line near Clarkston. It crosses the Cascade Range over White Pass, south of Mount Rainier National Park. Portions of it are concurrent with Interstate 5 (I-5) and Interstate 82 (I-82), although the majority of the route does not parallel any Interstate Highway.
U.S. Route 9W
U.S. Route 9W (US 9W) is a north–south U.S. Highway in the states of New Jersey and New York. It begins in Fort Lee, New Jersey, as Fletcher Avenue crosses the US 1–9, US 46, and the Interstate 95 (I-95) approaches to the George Washington Bridge, and heads north up the west side of the Hudson River to US 9 in Albany, New York. As its "W" suffix indicates, US 9W is a westerly alternate route of US 9 between the two locations. US 9W directly serves three cities—Newburgh, Kingston, and Albany—and enters the vicinity of several others. As the route heads north, it connects to several highways of regional importance, including I-84, US 209, New York State Route 23 (NY 23), and US 20. Much of US 9W parallels the New York State Thruway and NY 32; additionally, the latter overlaps with US 9W in four different locations.
U.S. Route 301
According to one source, US 301 had been known as "Tobacco Trail" prior to its renaming in 1960 to "The Miss Universe Highway".
Prior to 2019, US 301 in Delaware started at the intersection of U.S. 40 and Delaware Route 896 in Glasgow. The highway was cosigned with DE 896, picking up Delaware Route 71 only three miles south of U.S. 40. Running parallel to US 13 and Delaware Route 1, the highway crossed the Chesapeake and Delaware Canal on the four-lane Summit Bridge. At Mount Pleasant, DE 896 headed east to intersect U.S. 13 at Boyd's Corner, while DE 71 continued to be cosigned with U.S. 301 until the road reached Middletown. U.S. 301 continued alone until it picked up two other roads, Delaware Route 15 and Delaware Route 299, which followed the highway to near the Maryland state line. On November 14, 2006, the Delaware Department of Transportation (DelDOT) announced that a new four-lane bypass around Middletown will reroute US 301 west of Middletown, with the road directly connecting to DE 1 in Biddles Corner. This bypass opened to traffic on January 10, 2019.
Virginia State Route 123
State Route 123 (SR 123) is a primary state highway in the U.S. state of Virginia. The state highway runs from U.S. Route 1 (US 1) in Woodbridge north to the Chain Bridge across the Potomac River into Washington from Arlington. It goes by three local names. From its southern terminus to the Occoquan River Bridge, it is known as Gordon Boulevard. From the Occoquan River Bridge to the city of Fairfax it is known as Ox Road. From Fairfax to its intersection with I-495 in Tysons Corner it is known as Chain Bridge Road. East of Tysons, it is known as Dolley Madison Boulevard. SR 123 is a partial circumferential highway in Northern Virginia that connects Woodbridge in eastern Prince William County with the independent city of Fairfax and the Fairfax County communities of Vienna, Tysons Corner, and McLean, the last the home of the National Counterterrorism Center and the Central Intelligence Agency. The state highway also connects all of the major highways that radiate from Washington, including Interstate 95, I-66, US 29, US 50, SR 267, and the George Washington Memorial Parkway. Furthermore, SR 123 crosses another pair of circumferential highways, I-495 and the Fairfax County Parkway, and SR 7, a major northwest–southeast highway through Northern Virginia. The state highway is a part of the National Highway System for its entire length.
Interstate 75
I-75 passes through six different states over its routing. The highway runs the length of the Florida peninsula from the Miami area and up the Gulf Coast through Tampa. Further north in Georgia, I-75 connects to Macon and Atlanta before running through Chattanooga and Knoxville and the Cumberland Mountains in Tennessee. I-75 crosses Kentucky, passing through Lexington before crossing the Ohio River into Cincinnati, Ohio. In the Buckeye State, the highway runs up the western side through Dayton before crossing into Michigan north of Toledo. I-75 runs northeasterly along the Lake Erie shoreline and Detroit River into the city of Detroit before turning northwesterly and northward to the Mackinac Bridge where the freeway crosses the strait between Lakes Huron and Michigan. Further north, I-75 approaches the Canadian border down river from Lake Superior, from its origins near the Atlantic Ocean.
Decommissioned highway
Decommissioned highways are common in the United States. Even in the early years of the United States Highway System, some highways had short lives as US highways especially if they were themselves short routes, such as the early US 110 in Wisconsin. Extensions of US routes have implied the elimination of earlier designations; as US 6, which originally went no farther west than the Hudson River in New York was extended to Long Beach, California over routes that included an old Indiana State Route 6, most of an old US 32 between Chicago and Omaha, all of US 38 between Omaha and Denver, and an old California State Highway 7 mostly in the Mojave Desert. US 6 was itself pared back to Bishop, California in the Great Renumbering of California in 1964.
Interstate 40
Interstate 40 (I-40) is a major east-west Interstate Highway running through the south-central portion of the United States generally north of I-10 and I-20 but south of I-70. The western end is at I-15 in Barstow, California; its eastern end is at a concurrency of U.S. Route 117 (US 117) and North Carolina Highway 132 in Wilmington, North Carolina. It is the third-longest Interstate Highway in the United States, behind I-80 and I-90. Much of the western part of I-40, from Oklahoma City to Barstow parallels or overlays the historic US 66, east of Oklahoma City the route generally parallels US 64 and US 70. I-40 runs through many major cities including Albuquerque, New Mexico; Amarillo, Texas; Oklahoma City, Oklahoma; Little Rock, Arkansas; Memphis, Tennessee; Nashville, Tennessee; Knoxville, Tennessee; Greensboro, North Carolina; and Raleigh, North Carolina.
U.S. Route 40 in Delaware
U.S. Route 40 (US 40) is a US highway running from Park City, Utah east to Atlantic City, New Jersey. In the US state of Delaware, it serves as a major east–west highway in northern New Castle County, just south of Wilmington. It runs from the Maryland border east of Elkton, Maryland east to the Delaware Memorial Bridge over the Delaware River to New Jersey, at which point it is concurrent with Interstate 295 (I-295). Along the way, US 40 runs through suburban areas of Glasgow and Bear before following US 13 and I-295 around New Castle. US 40 is a multilane divided highway the entire length across Delaware.
U.S. Route 64 in Oklahoma
U.S. Route 64 (US-64) is a U.S. highway running from the Four Corners area to the Outer Banks of North Carolina. Between these two points, the highway passes through the entire width of Oklahoma; a total of of US-64 lies in the state of Oklahoma. US-64 enters the state from New Mexico, crossing the line between the two states between Clayton, New Mexico, and Boise City in Cimarron County. The route runs the full length of the Oklahoma Panhandle, then serves the northernmost tier of counties in the main body of the state before dipping southeastward to Tulsa, the state's second-largest city. From Tulsa, the highway continues southeast, leaving Oklahoma just west of Fort Smith, Arkansas. In addition to Tulsa, US-64 serves fifteen Oklahoma counties and the cities of Guymon, Woodward, Enid, and Muskogee.
U.S. Route 30 in Iowa
US 30 was originally conceived as a part of the Lincoln Highway, the first transcontinental highway in the United States. A route through Iowa was chosen because of the important link between Omaha, Nebraska, and Chicago, Illinois. As the U.S. Highway System came into being in the 1920s, and the Lincoln Highway became US 30, federal money started to pay for paving Iowa's dirt roads. By 1931, it had been paved across the entire state.
Route number
The U.S. Highway System, indicated by a white shield with black numbers, is based on a numbering grid, with odd routes running generally north–south and even routes running east–west. Primary routes have a one- or two-digit number, and are supplemented by spur routes that add a hundreds digit to their parent route. Routes increase from east-to-west and north-to-south, such that U.S. Route 1 follows the Atlantic Seaboard fall line, while U.S. Route 101 does the same at the Pacific Ocean Coast. Likewise U.S. Route 2 runs near the Canadian border, while U.S. Route 98 follows the Gulf Coast. Major cross-country routes end in either a "1" or a "0". For example, U.S. Route 20 is a route that runs over from Boston, Massachusetts, to Newport, Oregon, while U.S. Route 41 spans the country from Miami, Florida, to the Upper Peninsula of Michigan. Routes like U.S. Route 141 and U.S. Route 441 branch off U.S. Route 41. The now defunct U.S. Route 66, known as the "Mother Road", was a cultural touchstone that inspired literature, songs, and other media.
Interstate 95 in Connecticut
Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running in a general east–west compass direction for 111.57 miles (179.55 km) in Connecticut, from the New York state line to the Rhode Island state line. I-95 from Greenwich to East Lyme is part of the Governor John Davis Lodge Turnpike, formerly known as the Connecticut Turnpike, during which it passes through the major cities of Stamford, Bridgeport, and New Haven. After leaving the turnpike in East Lyme, I-95 is known as the Jewish War Veterans Memorial Highway and passes through New London, Groton, and Mystic, before exiting the state at the Rhode Island border.
Theodore Roosevelt International Highway
The Theodore Roosevelt International Highway was a transcontinental North American highway, from the era of the auto trails, through the United States and Canada that ran from Portland, Maine, to Portland, Oregon. Its length was about .
U.S. Route 2
U.S. Route 2 or U.S. Highway 2 (US 2) is an east–west U.S. Highway spanning across the northern continental United States. US 2 consists of two segments connected by various roadways in southern Canada. Unlike some routes, which are disconnected into segments because of encroaching Interstate Highways, the two portions of US 2 were designed to be separate in the original 1926 highway plan.
U.S. Route 62 in New York
U.S. Route 62 (US 62) is a part of the U.S. Highway System that travels from the United States–Mexico border at El Paso, Texas, to Niagara Falls, New York. In the U.S. state of New York, US 62 extends from the New York–Pennsylvania border south of Jamestown to an intersection with New York State Route 104 (NY 104) in downtown Niagara Falls. It bypasses the city of Jamestown and serves the cities of Buffalo and Niagara Falls, along with several villages. It is the only north–south mainline U.S. highway in Western New York.
U.S. Route 80 in Alabama
Elsewhere in the United States, the Interstate had brought the days of US 80 being a transcontinental highway to an end. California had formally decommissioned its segment of the highway between 1964 and 1969, followed by Arizona between 1977 and 1989 and New Mexico from 1989 to 1991. Though Texas decommissioned the majority of its section by 1991, the section from Dallas to Savannah remained and the routing has remained unaltered since. Today, I-20, I-10 and I-8 have taken the place of US 80's western segment. Though US 80 still exists between Dallas and Savannah, it has long since been replaced as a main highway through all of Mississippi and Louisiana by I-20 and between Macon and Savannah in Georgia by I-16 Alabama is a unique case, as US 80 still remains the main east west highway through Alabama's Black Belt, which is almost the entire highway within the state. Since 1987, the route between Cuba and Demopolis has been upgraded into a four lane highway, and US 80 was moved onto I-85 between Eastern Boulvard in Montgomery and I-85 Exit 16 east of Mount Meigs. US 80 has also been rerouted around Selma onto SR 41 and SR 14, while SR 8 continues to be routed on the older alignment through town. Today, the old Selma route, including the Edmund Pettus Bridge, is signed as US 80 Business.
U.S. Route 150
U.S. Route 150 (abbreviated Route 150 or U.S. 150) is a 571-mile (919 km) long northwest-southeast United States highway, signed as east–west. It runs from U.S. Route 6 outside of Moline, Illinois to U.S. Route 25 in Mount Vernon, Kentucky .
Connecticut
The Interstate highways in the state are Interstate 95 (I-95; the Connecticut Turnpike) traveling southwest to northeast along the coast, I-84 traveling southwest to northeast in the center of the state, I-91 traveling north to south in the center of the state, and I-395 traveling north to south near the eastern border of the state. The other major highways in Connecticut are the Merritt Parkway and Wilbur Cross Parkway, which together form Connecticut Route 15 (Route 15), traveling from the Hutchinson River Parkway in New York parallel to I-95 before turning north of New Haven and traveling parallel to I-91, finally becoming a surface road in Berlin. I-95 and Route 15 were originally toll roads; they relied on a system of toll plazas at which all traffic stopped and paid fixed tolls. A series of terrible crashes at these plazas eventually contributed to the decision to remove the tolls in 1988. Other major arteries in the state include U.S. Route 7 (US 7) in the west traveling parallel to the New York state line, Route 8 farther east near the industrial city of Waterbury and traveling north–south along the Naugatuck River Valley nearly parallel with US 7, and Connecticut Route 9 in the east.
Interstate 10 in Texas
Interstate 10 (I-10) is the major east–west Interstate Highway in the Southern United States. In the U.S. state of Texas, it runs east from Anthony, at the border with New Mexico, through El Paso, San Antonio and Houston to the border with Louisiana in Orange, Texas. At just under , the Texas segment of I-10, maintained by the Texas Department of Transportation, is the longest continuous untolled freeway in North America that is operated by a single authority. It is also the longest stretch of highway with a single designation within a single state. Mile marker 880 and its corresponding exit number in Orange, Texas, are the highest numbered mile marker and exit on any freeway in North America. After widening was completed in 2008, a portion of the highway west of Houston is now also believed to be the widest in the world, at 26 lanes. There is a wider section in China on the G4 Beijing–Hong Kong–Macau Expressway; however, that section is a toll plaza approach.
Great Western Trail
The Great Western Trail is a north-south long distance multiple use route which runs from Canada to Mexico through five western states in the United States. The trail has access for both motorized and non-motorized users and traverses through Arizona, Utah, Idaho, Wyoming, and Montana. Designated a National Millennium Trail.
U.S. Route 34
U.S. Route 34 is an east–west United States highway that runs for from north-central Colorado to the western suburbs of Chicago. Through Rocky Mountain National Park it is known as the Trail Ridge Road where it reaches elevation , making it the highest paved through highway in the United States. The highway's western terminus is Granby, Colorado at U.S. Route 40. Its eastern terminus is in Berwyn, Illinois at Illinois Route 43 and Historic US 66.
U.S. Route 1 in New Jersey
U.S. Route 1 (US 1) is a United States highway which parallels the East Coast of the United States, running from Key West, Florida in the south to Fort Kent, Maine at the Canadian border in the north. Of the entire length of the route, of it runs through New Jersey. It enters the state from Pennsylvania on the Trenton–Morrisville Toll Bridge over the Delaware River in the state capital of Trenton, running through the city on the Trenton Freeway. From here, US 1 continues northeast as a surface divided highway through suburban areas continuing into Middlesex County and passing through New Brunswick and Edison. US 1 merges with US 9 in Woodbridge, and the two routes continue through northern New Jersey as US 1/9 to the George Washington Bridge over the Hudson River in Fort Lee. At this point, the road continues into New York City along with I-95.
Blue Ridge Parkway
The Blue Ridge Parkway is a National Parkway and All-American Road in the United States, noted for its scenic beauty. The parkway, which is America's longest linear park, runs for through 29 Virginia and North Carolina counties, linking Shenandoah National Park to Great Smoky Mountains National Park. It runs mostly along the spine of the Blue Ridge, a major mountain chain that is part of the Appalachian Mountains. Its southern terminus is at U.S. 441 on the boundary between Great Smoky Mountains National Park and the Cherokee Indian Reservation in North Carolina, from which it travels north to Shenandoah National Park in Virginia. The roadway continues through Shenandoah as Skyline Drive, a similar scenic road which is managed by a different National Park Service unit. Both Skyline Drive and the Virginia portion of the Blue Ridge Parkway are part of Virginia State Route 48, though this designation is not signed.
U.S. Route 84 in Georgia
U.S. Route 84 (US 84) is a U.S. Highway in the U.S. state of Georgia, is also signed as State Route 38 for its entire length in Georgia. After entering Georgia from Alabama west-northwest of Jakin, the highway travels through the southern portion of the state, meeting its eastern terminus at Interstate 95 (I-95) east of Midway. US 84 through Georgia is also known as the Wiregrass Georgia Parkway.
Washington State Route 20
State Route 20 (SR 20), also known as the North Cascades Highway, is a state highway that traverses the U.S. state of Washington. It is the state's longest highway, traveling across the northern areas of Washington, from U.S. Route 101 (US 101) at Discovery Bay on the Olympic Peninsula to US 2 near the Idaho state border in Newport. The highway travels across Whidbey Island, North Cascades National Park, the Okanagan Highland, the Kettle River Range, and the Selkirk Mountains. SR 20 connects several major north–south state highways, including Interstate 5 (I-5) in Burlington, US 97 through the Okanogan–Omak area, SR 21 in Republic, and US 395 from Kettle Falls to Colville.
U.S. Route 44
U.S. Route 44 is an east–west United States highway that runs for through four states in the Northeastern region of the United States. The western terminus is at U.S. Route 209 and New York State Route 55 in Kerhonkson, a hamlet in the Hudson Valley region of New York. The eastern terminus is at Massachusetts Route 3A in Plymouth, Massachusetts.
Great River Road
It is divided into two main sections: the Great River Road and the National Scenic Byway Route. The eponymous segment runs on both sides of the river from Louisiana through the state borders of Kentucky/Illinois and Missouri/Iowa, excepting the full length of the road in Arkansas. A five-state section of the road has been designated a National Scenic Byway, running through Arkansas, Illinois, Iowa, Wisconsin, and Minnesota.