What is the longest highway in the U.S.?
U.S. Route 20 in Massachusetts
U.S. Route 20 is the longest numbered highway in the entire country and also holds the distinction of being the longest numbered highway in the state, edging out Route 28 by merely a mile (Route 28 is long).
Hillclimbing in the United States
The hill climb with the longest road, that has been continuously run, in the world is the Mount Equinox Hill Climb located in Arlington, Vermont just outside Manchester. The length of the road is 5.2 miles and the elevation change is 3,100 feet. It contains more than 40 turns and cars have been clocked at breaking 100 MPH on the long straight ending at "The Saddle". The hill climb has been run by such famous drivers as Carroll Shelby, Briggs Cunningham, René Dreyfus, John Fitch and Miles Collier to name just a few. Started in 1950 as an official SCCA event, it continues uninterrupted, as a vintage car race. Since 1973 the sanctioning body has been the Vintage Sports Car Club of America.
U.S. Route 191
The highway was designated in 1926 and its routing has changed drastically through the years. The modern US 191 bears almost no resemblance to the original route, which was primarily in the state of Idaho. Most of the current route of US 191 was formed in 1981. Since the extensions in the 1980s and 1990s, U.S. Route 191 is much longer than its parent route which it no longer connects to, and one of the longest U.S. three-digit routes.
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.
California
The state has been a pioneer in road construction. One of the state's more visible landmarks, the Golden Gate Bridge, was the longest suspension bridge main span in the world at between 1937 (when it opened) and 1964. With its orange paint and panoramic views of the bay, this highway bridge is a popular tourist attraction and also accommodates pedestrians and bicyclists. The San Francisco–Oakland Bay Bridge (often abbreviated the "Bay Bridge"), completed in 1936, transports about 280,000 vehicles per day on two-decks. Its two sections meet at Yerba Buena Island through the world's largest diameter transportation bore tunnel, at wide by high. The Arroyo Seco Parkway, connecting Los Angeles and Pasadena, opened in 1940 as the first freeway in the Western United States. It was later extended south to the Four Level Interchange in downtown Los Angeles, regarded as the first stack interchange ever built.
Pan-American Highway
The Pan-American Highway is a network of roads stretching across the American continents and measuring about in total length. Except for a rainforest break of approximately , called the Darién Gap, the roads link almost all of the Pacific coastal countries of the Americas in a connected highway system. According to "Guinness World Records", the Pan-American Highway is the world's longest "motorable road". However, because of the Darién Gap, it is not possible to cross between South America and Central America with conventional highway vehicles. Without an all-terrain vehicle, it is necessary to circumnavigate this terrestrial stretch by sea.
Economy of the United States
The U.S. economy is heavily dependent on road transport for moving people and goods. Personal transportation is dominated by automobiles, which operate on a network of 4 million miles (6.4 million km) of public roads, including one of the world's longest highway systems at 57,000 miles (91,700 km). The world's second-largest automobile market, the United States has the highest rate of per-capita vehicle ownership in the world, with 765 vehicles per 1,000 Americans. About 40% of personal vehicles are vans, SUVs, or light trucks.
Western Avenue (Chicago)
Western Avenue is the longest continuous street within the city of Chicago at in length. (Not to be confused with the longest street in the world, Yonge Street in Toronto, at 56km or 32mi.) Western Avenue extends south as a continuous road to the Dixie Highway at Sibley Boulevard (Illinois Route 83) in Dixmoor, giving the road a total length of . Western Avenue, after turning into Asbury Ave, runs out on the north side at Green Bay Road in Evanston and on the south side at Crete-Monee Road in Crete. However, Western Avenue extends intermittently through the Southland to the Will / Kankakee county border in unincorporated Will Township. Within Chicago's grid street system, Western Avenue is 2400 West.
U.S. Route 2 in Vermont
Although the portion of the road from Alburgh to Burlington follows a north-south alignment, US 2 is continuously signed east (heading south during this portion) and west (heading north) to match its overall alignment, making it the longest east-west signed route in the state. At a nearly 460-mile overall length, US 2 is also the longest highway of any designation (Interstate, US Route, or state highway) that enters the state of Vermont.
Texas State Highway 16
State Highway 16, or SH 16, is a south–north state highway that runs from Zapata on the Texas-Mexico boundary to U.S. Highway 281 24 miles (38.6 km) south of Wichita Falls. It is the longest state highway in Texas at almost 542 miles, but is only the 9th longest of any highway classification in the state. Before the 1939 renumbering, SH 4 was the longest state highway.
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.
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.
Highway systems by country
Arguably, the most famous United States highway is U.S. Route 66. It is immortalized in the song "(Get Your Kicks On) Route 66", and by the legendary TV series "Route 66". Other famous highways in songs include Highway 61 (Bob Dylan, 1965), Carefree Highway in Arizona (Gordon Lightfoot, 1974), Colorado Boulevard in Pasadena, California (Jan & Dean, also Beach Boys, 1964), the song "Ventura Highway", named for a highway in Southern California ("America", 1972), and Blues Highway in Mississippi (Fred McDowell, 1959).
Arkansas Highway System
Another convention in 1907 formed road districts, but this did not help the situation either. Although the need for improvement was obvious, the citizens had trouble finding funding for their goals. In December 1913, Arkansas formed the "Dollarway", which was the name of a concrete road with asphalt concrete topping. It was opened near Pine Bluff. By 1914, a segment of was opened, the longest paved stretch in the United States. Today, the route is mostly covered by Highway 365, although some original concrete segments are still visible, and the Dollarway Road portion has been listed on the National Register of Historic Places.
New York State Route 22
New York State Route 22 (NY 22) is a north–south state highway that parallels the eastern border of the U.S. state of New York, from the outskirts of New York City to the hamlet of Mooers in Clinton County near the Canadian border. At , it is the state's longest north–south route and the third longest state route overall, after NY 5 and NY 17. Many of the state's major east–west roads intersect with, and often join, Route 22 just before crossing into the neighboring New England states, where U.S. Route 7 (US 7), which originally partially followed NY 22's alignment, similarly parallels the New York state line.
Interstate Highways in Alaska
The Interstate Highways in Alaska are all owned and maintained by the U.S. state of Alaska. The Alaska Department of Transportation & Public Facilities (DOT&PF) is responsible for the maintenance and operations of the Interstate Highways. The Interstate Highway System in Alaska comprises four highways that cover . The longest of these is A-1, at long, while the shortest route is A-3, at long. All Interstates in Alaska are unsigned and are not generally referred to by their highway numbers.
Road
The United States has the largest network of roads of any country with as of 2009. The Republic of India has the second largest road system in the world with 4,689,842 kilometres (2,914,133 mi) of road (2013). The People's Republic of China is third with of road (2007). The Federative Republic of Brazil has the fourth largest road system in the world with (2002). See List of countries by road network size. When looking only at expressways the National Trunk Highway System (NTHS) in China has a total length of at the end of 2006, and 60,300 km at the end of 2008, second only to the United States with in 2005. However, as of 2017 China has 130,000 km of Expressways.
U.S. Route 59
From the southwestern suburbs of Houston to Downtown Houston, U.S. 59 is commonly referred to as the "Southwest Freeway," sometimes derisively as the "Southwest's Best Freeway." Supporting 371,000 vehicles per day, it is one of the busiest freeways in the United States. U.S. 59 is known as the "Eastex Freeway" in the north/northeast part of the Houston region. At the Mexico–US border, it ends at the World Trade International Bridge in Laredo, Texas. In Laredo, U.S. 59 is co-signed with both Interstate 69W (I-69W) and Loop 20 and has an intersection with Interstate 35 which ends at the Juarez-Lincoln International Bridge. After crossing the bridge into Mexico, Interstate 35 continues as Mexican Federal Highway 85 in Nuevo Laredo which then runs through Mexico and Central America and ends in Panama at the Panama Canal.
List of U.S. Highways in Nebraska
The US Highways in Nebraska are the segments of the national United States Numbered Highway System that are owned and maintained by the U.S. State of Nebraska totaling . The longest of these routes is U.S. Route 30 at around . On a national level, the standards and numbering for the system are handled by the American Association of State Highway and Transportation Officials (AASHTO), while the Nebraska Department of Transportation is responsible for their maintenance. Route numbers are not reused between the various highway systems within the state. For example, Interstate 80 is the only route in Nebraska with the number 80.
Philadelphia and Lancaster Turnpike
The Philadelphia and Lancaster Turnpike, first used in 1795, is the first long-distance paved road built in the United States, according to engineered plans and specifications. It links Lancaster, Pennsylvania, and Philadelphia at 34th Street, stretching for sixty-two miles. However, the western terminus was actually at the Susquehanna River in Columbia. The route is designated Pennsylvania Route 462 from the western terminus to US 30, where that route takes over for the majority of the route. The US 30 designation ends at Girard Avenue in the Parkside neighborhood of Philadelphia, where State Route 3012 takes it from there to Belmont Avenue. At Belmont Avenue, State Route 3005 gets the designation from Belmont Avenue until the terminus at 34th Street.
Pan-American Highway (North America)
The Pan-American Highway route in North America is the portion of a network of roads nearly 48,000 km in length which travels through the mainland nations of the Americas. No definitive length of the Pan American Highway exists because the Canadian government has never officially defined any specific route as being part of the Pan-American Highway, while in the U.S., the Federal Highway Administration (FHWA) has designated the entire Interstate Highway System part of the Pan-American Highway System, although this has not yet been reinforced by any official highway signage. Mexico officially has many branches connecting to various interstate highways at the U.S. border.
Interstate 81 in Virginia
Interstate 81 (I-81) is an highway. In the U.S. state of Virginia, I-81 runs for , making the portion in Virginia longer than any other state's portion. It is also the longest Interstate highway within the borders of Virginia. It stretches from the Tennessee state line near Bristol to the West Virginia state line near Winchester.
U.S. Route 99 in California
By 1968, US 99 was completely decommissioned with the completion of I-5 in Washington and California, but the highway's phasing out actually began July 1, 1964, thanks to the passage of Collier Senate Bill No. 64 on September 20, 1963. The bill launched a major program designed to greatly simplify California's increasingly complicated highway numbering system and eliminate concurrent postings like the aforementioned US 60/US 70/US 99. The highways that replaced it are:The stretch between Wheeler Ridge and Red Bluff is signed as SR 99 which makes it California's second-longest state highway behind SR 1. However, the newly enacted "Historic U.S. Route 99" extends from Indio starting from I-10 in the Coachella Valley all the way down the Imperial Valley to Calexico on the Mexican border with Mexicali, Baja California, Mexico.U.S. Route 99W was a short-lived alternate of US 99 in the Central Valley of California, running from north of Manteca via French Camp to Stockton. At the same time, from roughly 1929 to 1933, U.S. Route 99E ran to the east, having the same termini as US 99W.
Interstate 84 in Oregon
Interstate 84 is the longest freeway in Oregon, at over in length, and is the only Interstate to traverse the state from west to east. The highway connects the Portland metropolitan area to the Columbia River Gorge, the northeastern Columbia Plateau, and part of the Snake River Valley. As a component of the Interstate Highway System, I-84 is also designated as an important national highway under the National Highway System. It is officially named the Vietnam Veterans Memorial Highway and is mostly concurrent with US 30, which also carries part of the Columbia River Highway No. 2 and all of the Old Oregon Trail Highway No. 6 under Oregon's named route system.
U.S. Route 50 in Nevada
U.S. Route 50 (US 50) is a transcontinental highway in the United States, stretching from West Sacramento, California, in the west to Ocean City, Maryland, on the east coast. The Nevada portion crosses the center of the state and was named The Loneliest Road in America by "Life" magazine in July 1986. The name was intended as a pejorative, but Nevada officials seized it as a marketing slogan. The name originates from large desolate areas traversed by the route, with few or no signs of civilization. The highway crosses several large desert valleys separated by numerous mountain ranges towering over the valley floors, in what is known as the Basin and Range province of the Great Basin.
Missouri Route 32
Route 32 is a highway in Missouri. Its eastern terminus is at the Mississippi River near Ste. Genevieve; its western terminus is at U.S. Route 54 in El Dorado Springs. It is currently one of the longest highways in the state. Most of the highway east of Lebanon is hilly and curvy, passing through a large part of the Missouri Ozarks.
Transportation in the United States
With the development of the extensive Eisenhower "Interstate Highway System" in the 1950s, both long-distance trips and daily the commute were mostly by private automobile. This network was designed to exacting federal standards in order to receive federal funding. The system, , has a total length of , making it the world's second longest after China's, and the largest public works project in US history.
List of United States Numbered Highways
There are several U.S. Highways that exist entirely within one state. Since the current policy on numbering and designating US Highways was written in 1991, AASHTO has been in the process of eliminating all intrastate U.S. Highways less than in length, "as rapidly as the State Highway Department and the Standing Committee on Highways of the American Association of State Highway and Transportation Officials can reach agreement with reference thereto"; new additions to the system must therefore serve more than one state.
Harlem Avenue
Harlem Avenue is a major north-south street in Chicago, Illinois, United States and the west/southwest/northwest suburbs. It stretches from Glenview Road in Glenview to the intersection of E. South Street and S. Drecksler Road in Peotone, where it divulges into IL Route 50. At 54.1 miles it is the third-longest street in the United States, after Telegraph Road in southeastern Michigan and O Street in Nebraska. For most of its length it carries Illinois Route 43. There is a stop along the Metra BNSF Line at Harlem Avenue and Windsor Avenue in Berwyn, Illinois.
New York State Route 19
New York State Route 19 (NY 19) is a north–south state highway in Western New York in the United States. It is the longest state highway in that region, and the only other one besides NY 14 to completely transect the state from the Pennsylvania state line to the shore of Lake Ontario. It continues south into Pennsylvania as Pennsylvania Route 449 (PA 449) and ends at an intersection with the Lake Ontario State Parkway just south of the lakeshore in Hamlin. NY 19 does not serve any major cities or metropolitan areas and remains a two-lane rural road for almost its entire length. However, it follows the Genesee River for much of its lower length, and offers easy access to the gorges of Letchworth State Park midway along its route.
U.S. Route 30 in Iowa
U.S. Highway 30 (US 30) is a major east–west U.S. Highway which spans across the state of Iowa. It is the longest primary highway in the state and is maintained by the Iowa Department of Transportation (Iowa DOT). The route in Iowa begins at the Missouri River crossing at Blair, Nebraska, and ends at the Mississippi River crossing at Clinton. Along the way, it serves Denison and Carroll in western Iowa, Boone, Ames, and Marshalltown in central Iowa, and Tama, Cedar Rapids, and DeWitt in eastern Iowa. Cutting across the central portion of the state, US 30 runs within close proximity of the Union Pacific Railroad's Overland Route for its entire length.
Brandon, South Dakota
Interstate 90, the longest interstate highway in the United States, is located along the city's northern border with Corson and serves as a major east–west route through the city. South Dakota Highway 11 (known as Splitrock Boulevard in the city limits) runs a north–south route as well. Most businesses in Brandon are located on Splitrock Boulevard. Other major roads include Holly Boulevard, Sioux Boulevard, and Aspen Boulevard. Aspen Boulevard directly connects Brandon to other communities east of it such as Valley Springs, South Dakota; Beaver Creek, Minnesota; and Luverne, Minnesota.
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.
Alaska
Alaska has few road connections compared to the rest of the U.S. The state's road system covers a relatively small area of the state, linking the central population centers and the Alaska Highway, the principal route out of the state through Canada. The state capital, Juneau, is not accessible by road, only a car ferry, which has spurred several debates over the decades about moving the capital to a city on the road system, or building a road connection from Haines. The western part of Alaska has no road system connecting the communities with the rest of Alaska.
The Interstate Highways in Alaska consists of a total of 1082 miles. One unique feature of the Alaska Highway system is the Anton Anderson Memorial Tunnel, an active Alaska Railroad tunnel recently upgraded to provide a paved roadway link with the isolated community of Whittier on Prince William Sound to the Seward Highway about southeast of Anchorage at Portage. At , the tunnel was the longest road tunnel in North America until 2007. The tunnel is the longest combination road and rail tunnel in North America.
Sioux City, Iowa
Interstate 29 is a major controlled-access highway in Sioux City and the surrounding area providing easy access of the 20 mile stretch covering Sioux City and the majority of its suburbs. It approaches the city from Omaha to the south before curving northwest along the Missouri River near downtown. The highway then enters South Dakota and curves back to the north as it approaches Sioux Falls. Interstate 129 is an auxiliary Interstate that connects South Sioux City, Nebraska to the south side of Sioux City and works as a bypass for travelers to other surrounding suburbs. Interstate 129 also interconnects with U.S. Route 75 which is in expansion to expressway form connecting Sioux City to Worthington, Minnesota. U.S. Route 20, the longest road in the United States spanning is also in the works of expanding from a two-lane highway to four-lanes from Sioux City to Dubuque, Iowa which will provide faster and easier access comparable to Interstate 80 in Iowa. Sioux City operates automatic speed cameras on interstate highways. The cameras are operated by Redflex Holdings and are reported to provide approximately $4.5 million per year for the city budget. The state of South Dakota has been refusing to provide addresses associated with licence plates due to the large number of South Dakota residents fined by Sioux City.
List of U.S. Highways in Alabama
The U.S. Highways in Alabama are the subset of the United States numbered highway system. These highways in the U.S. state of Alabama are maintained by the Alabama Department of Transportation (ALDOT). There are 19 U.S. highways that travels through Alabama, totaling . U.S. Route 31 (US 31) is the highway with the longest segment in Alabama, with . The shortest is US 72 Alternate, crossing of North Alabama. One former U.S. highway existed in Alabama: US 241. It traveled through the eastern part of the state. US 241 was replaced by US 280 and US 431 in 1954.
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 10
U.S. Route 10 or U.S. Highway 10 (US 10) is an east–west United States highway formed in 1926. Though it never became the cross-country highway suggested by the "0" as the last digit of its route number, US 10 was one of the original long-haul highways, running from Detroit, Michigan, to Seattle, Washington, but then losing much of its length when new Interstate Highways were built on top of its right-of-way. In 2010, its length was .
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.
Interstate 90 in Washington
Interstate 90 is the longest freeway in Washington state, at nearly in length, and is the only Interstate to traverse the state from west to east across the Cascade Mountains. It is listed as part of the National Highway System, classifying important to the national economy, defense, and mobility, and the state's Highway of Statewide Significance program, recognizing its connection to major communities. A section of I-90 between Seattle and Thorp named the Mountains to Sound Greenway was designated in 1998 as a National Scenic Byway, in recognition of its scenic views.
Old Mine Road
Old Mine Road is a road in New Jersey and New York said to be one of the oldest continuously used roads in the United States of America. At a length of , it stretches from the Delaware Water Gap National Recreation Area to the vicinity of Kingston, New York.
U.S. Route 6 in Pennsylvania
U.S. Route 6 travels east–west near the north edge of the U.S. state of Pennsylvania from the Ohio state line near Pymatuning Reservoir east to the Mid-Delaware Bridge over the Delaware River into Port Jervis, New York. It is the longest highway segment in the Commonwealth. Most of it is a two-lane rural highway, with some freeway bypasses around larger towns. Except east of Dunmore, where it is paralleled by Interstate 84, it is the main route in its corridor. What is now Interstate 80—the Keystone Shortway—was once planned along the US 6 corridor as a western extension of I-84. The corridor was originally the Roosevelt Highway from Erie, Pennsylvania to Port Jervis, New York, designated Pennsylvania Route 7 in 1924. The PA 7 designation soon disappeared, but as US 6 was extended and relocated, the Roosevelt Highway followed it. The Pennsylvania section of US 6 was renamed the Grand Army of the Republic Highway in 1946; this name was applied to its full transcontinental length by 1953.
Interstate 90
Interstate 90 (I-90) is an east–west transcontinental freeway, and the longest Interstate Highway in the United States at . Its western terminus is in Seattle, at State Route 519 near T-Mobile Park and CenturyLink Field, and its eastern terminus is in Boston, at Route 1A near Logan International Airport.
U.S. Route 40
U.S. Route 40 (US 40), also known as the Main Street of America, is an east–west United States Highway. As with most routes whose numbers end in a zero, US 40 once traversed the entire United States. It is one of the first U.S. Highways created in 1926 and its original termini were in San Francisco, California and Atlantic City, New Jersey. In the western United States, US 40 was functionally replaced by Interstate 80 (I-80), resulting in the route being truncated multiple times. US 40 currently ends at a junction with I-80 in Silver Summit, Utah, just outside Park City.
List of Interstate Highways in Nebraska
The Interstate Highways in Nebraska are the segments of the national Interstate Highway System that are owned and maintained by the U.S. state of Nebraska, totaling . The longest of these, by far, is Interstate 80 (I-80) at a length just over . After the system was created in 1956, the state department of roads began construction on its Interstates immediately and upon completion of I-80 in 1964 was the first state to complete its mainline Interstate. With the completion of Interstate 129 in 1977, Nebraska completed its contribution to the Interstate Highway System.
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.
List of Interstate Highways in Washington
Interstate 90 (I-90) is the longest primary Interstate Highway in Washington, which connects Seattle to Spokane and the Idaho border, measuring , while I-82, connecting the Oregon border city of Umatilla to Elensburg via Yakima, is the shortest at . The longest auxiliary Interstate Highway in Washington is I-405, a bypass of Seattle through the Eastside, at , and the shortest is I-705, a spur into downtown Tacoma, at . One route, I-605, has been proposed over the years to form another Eastside bypass, however there are no plans to construct this fifth auxiliary route.
After passage of the Federal Aid Highway Act of 1956, which formed the Interstate Highway System, the American Association of State Highway Officials had approved I-5 and I-90 across Washington on August 17, 1957. I-82 was approved on October 17, 1957, two months after I-5 and I-90, as part of a addition to the Interstate Highway System.
Highway
The United States has the world's largest network of highways, including both the Interstate Highway System and the U.S. Highway System. At least one of these networks is present in every state and they interconnect most major cities.
Auburn, Massachusetts
US 20: Five miles of US 20 runs through Auburn. At 3,365 miles, US 20 is the longest road in the United States. In Auburn it is also known as Southbridge St. (concurrent section with RT 12), Washington St. and the SW Cutoff.
Washington State Route 20
Although US 12 has a larger east–west extent, SR 20 is the longest highway in Washington at , only longer than US 12. The highway has been called "The Most Beautiful Mountain Highway in the State of Washington."
SR 20 begins at a wye junction with US 101 at the southwest end of Discovery Bay on the Olympic Peninsula, just north of the terminus of SR 104. The highway travels northerly through the rural Quimper Peninsula and follows the east shore of Discovery Bay before reaching a junction with SR 19 near Jefferson County International Airport. SR 20 turns north onto the highway and passes Fort Townsend State Park on the southern outskirts of Port Townsend near Glen Cove. Within Port Townsend, the highway travels east through suburban areas as Sims Way and towards the historic downtown as Water Street. To the southwest of Port Townsend's historic district, the route turns southeast into the city ferry terminal. SR 20 continues onto the Port Townsend–Coupeville ferry which travels northeast across the Admiralty Inlet to the Keystone terminal on Whidbey Island. The ferry, operated by Washington State Ferries, takes approximately 30 minutes between terminals and runs year-round.
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.
Taconic State Parkway
The Taconic State Parkway (often called the Taconic or the TSP and known administratively as New York State Route 987G or NY 987G) is a divided highway between Kensico Dam and Chatham, the longest parkway in the U.S. state of New York. It follows a generally northward route midway between the Hudson River and the Connecticut and Massachusetts state lines, along the Taconic Mountains. Its southernmost are a surface road; from the junction with the Sprain Brook Parkway northward it is a limited-access highway. It has grade-separated interchanges from that point to its northern terminus; in the three northern counties, there are also at-grade intersections, many with closed medians, allowing only right-in/right-out turns. It is open only to passenger vehicles, as with other parkways in New York, and maintained by the state Department of Transportation (NYSDOT), the fourth agency to have that responsibility.
List of U.S. Highways in Michigan
In Michigan, the US Highway System covers about of mainline highways and another of special routes. There are 13 mainline highways and 30 special routes in total, including one business route that is unsigned. Two of the mainline highways in the Upper Peninsula exit the state and re-enter, resulting in two discontinuous segments of highway for each in Michigan. The longest US Highway in the state is US Highway 23 (US 23) at just over spanning from the Ohio state line north to the Straits of Mackinac in the Lower Peninsula, while the shortest is the segment of US 8 south of Norway in Dickinson County. Special routes range in length from about for Business US 2 (Bus. US 2) in Ironwood to for Bus. US 131 in Kalamazoo.
New York State Route 17
At 397 miles, NY 17 is the longest state route in New York, and its second-longest highway of any kind besides the Thruway. It serves 11 counties (Chautauqua, Cattaraugus, Allegany, Steuben, Chemung, Tioga, Broome, Delaware, Sullivan, Orange, and Rockland), passes through the cities of Salamanca, Olean, Corning, Elmira, and Binghamton, and enters the vicinity of several others, including Jamestown and Middletown. As it proceeds across the state, it intersects many of New York's Interstate and U.S. Highways, including U.S. Route 219 (US 219) in Salamanca, I-99 and U.S. Route 15 (US 15) near Corning, I-81 in Binghamton, and I-84 near Middletown. The portion of NY 17 in the vicinity of Waverly is actually located in Pennsylvania; however, it is maintained by the New York State Department of Transportation.
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 14
U.S. Route 14 (abbreviated U.S. 14 or US 14), an east–west route, is one of the original United States highways of 1926. It currently has a length of 1,398 miles (2,250 km), but it had a peak length of 1,429 miles (2,300 km). For much of its length, it runs roughly parallel to Interstate 90.
Vermont Route 100
Vermont Route 100 (VT 100) is a north–south state highway in Vermont in the United States. Running through the center of the state, it travels nearly the entire length of Vermont and is long. VT 100 is the state's longest state highway, the longest north-south route in Vermont, and the longest numbered highway in Vermont of any type.
U.S. Route 77 in Iowa
US 77 has never been a long route in Iowa. When it was extended into the state in 1929, it only traveled in Sioux City before crossing the Big Sioux River into South Dakota. After I-29 was built in Sioux City during the late 1950s, US 77 was moved onto the new Interstate Highway. At both historic ends of the highway in Iowa, bridge failures have caused US 77 to be detoured around Sioux City. In the mid-1980s, the national end of the highway was moved to the interchange with I-29.
This is not the shortest highway in the USA. Pretty certain the Old Edgerton Highway in Alaska is the shortest at less than 12 miles long.
Interstate 95
With a length of , I-95 is the longest north–south Interstate and the sixth-longest Interstate Highway overall. I-95 passes through more states than any other Interstate Highway at 15 states (as well as a very brief stretch in the District of Columbia while crossing the Potomac River), followed by I-90, which crosses 13 states. According to the U.S. Census Bureau, only five of the 96 counties (or equivalents) along the route are completely rural, while statistics provided by the I-95 Corridor Coalition suggest that the region served is "over three times more densely populated than the U.S. average and as densely settled as much of Western Europe". According to the Corridor Coalition, I-95 serves 110 million people and facilitates 40 percent of the country’s gross domestic product.
Mexican Federal Highway 180
Highway 180 connects at the Mexico–United States border with U.S. Route 83, one of the longest north-south U.S. Highways in the United States at . Federal Highway 180 also connects to both Interstate 69E and U.S. Route 77 at the border. U.S. Route 83 (along with both Interstate 69E and U.S. Route 77) starts the northern terminus of Highway 180 in Brownsville, Texas, at the Veterans International Bridge on the Mexican border. After crossing the bridge into the United States, Federal Highway 180 continues as U.S. Route 83 in Brownsville which then runs northward to the U.S. highway's northern terminus, north of Westhope, North Dakota, at the Canada–United States border. From here, the highway continues further as Manitoba Highway 83 until it ends at Swan River, Manitoba. In total, the three highways total in length.
Lincoln, Montana
The Lincoln Community Hall (1918) and The Hotel Lincoln (1914) are listed on the National Register of Historical Places. Lincoln is located on Montana Highway 200 which is the longest route signed as a state highway in the United States, running 706.6 miles (1,137.2 km) from Idaho to North Dakota.
Ring road
The longest complete beltway in the United States is Interstate 275, an 83.71-mile (134.72 km) loop in Ohio, Indiana, and Kentucky that forms a complete beltway around the Cincinnati, Ohio area. It encloses an area of over 250,000 acres.
Indian Nation Turnpike
The Indian Nation Turnpike is a toll road in southeastern Oklahoma, United States, running between Hugo and Henryetta, Oklahoma, a distance of . It is the longest tollway in the state.
U.S. Route 9 in New York
U.S. Route 9 (US 9) is a part of the U.S. Highway System that runs from Laurel, Delaware, to Champlain, New York. In New York, US 9 extends from the George Washington Bridge in Manhattan to an interchange with Interstate 87 (I-87) just south of the Canada–United States border in the town of Champlain. US 9 is the longest north–south U.S. Highway in New York; additionally, the portion of US 9 in New York accounts for more than half of the highway's total length.
Montana Highway 200
Montana Highway 200 (MT 200) in the U.S. state of Montana is a route running east-west covering the entire state of Montana. From the starting point at ID 200, near Heron, Montana the highway runs east to ND 200 near Fairview, Montana. It is part of a chain of state highways numbered "200" which extend from Idaho across Montana, North Dakota and Minnesota. Montana Highway 200 is also the longest route signed as a state highway in the United States.
Highway 200 helps to connect many small towns located in central Montana and the vast plains area of eastern Montana, to larger western Montana cities such as Great Falls and Missoula.
Interstate 90
I-39/90/94 from just south of Portage to Madison is the longest concurrency of three Interstate Highways in the United States.
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.
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 13 in North Carolina
The section of U.S. Route 13 (US 13) in North Carolina is the longest, home to of its length. It runs southwest to northeast through eastern North Carolina, beginning at Interstate 95. Most of the routing is rural, serving only three cities of considerable size along the entire route; the rest passes through forests and farmland. US 13 is usually only two lanes wide unless it is co-signed with other highways, usually near cities as bypasses.
Oklahoma State Highway 18
State Highway 18, abbreviated as SH-18 or OK-18, is a highway maintained by the U.S. state of Oklahoma. It was once one of the longest state highways in the Oklahoma road system, but now has a total length of .
U.S. Route 16
US 16 is also known as Mount Rushmore Road in western South Dakota. The highway enters South Dakota east of Newcastle, Wyoming. It travels near Jewel Cave, the third-longest cave in the world. The highway goes through the city of Custer and shares alignment with US 385. East of Hill City, US 16 splits off US 385. It then becomes a four-lane divided highway, with the two roadways separated by up to a half-mile (0.8 km) in some places, including the old gold-mining town of Rockerville, South Dakota, which is contained entirely between the two roadways. In Rapid City, a truck bypass runs along Catron Boulevard and Elk Vale Road up to Exit 61 on I-90.
Interstate 70 in Colorado
The U.S. Department of Transportation (USDOT) lists the construction of I-70 among the engineering marvels undertaken in the Interstate Highway system, and cites four major accomplishments: the section through the Dakota Hogback, Eisenhower Tunnel, Vail Pass and Glenwood Canyon. The Eisenhower Tunnel, with a maximum elevation of and length of , is the longest mountain tunnel and highest point along the Interstate Highway System. The portion through Glenwood Canyon was completed on October 14, 1992. This was one of the final pieces of the Interstate Highway System to open to traffic, and is one of the most expensive rural highways per mile built in the United States. The Colorado Department of Transportation (CDOT) earned the 1993 Outstanding Civil Engineering Achievement Award from the American Society of Civil Engineers for the completion of I-70 through the canyon.
Yonge Street
Yonge Street was formerly a part of Highway 11, which led to claims that Yonge Street was the longest street in the world. Running (mostly) concurrent with Yonge as far north as Barrie, then continuing beyond through central and northern Ontario to the Ontario-Minnesota border at Rainy River, the highway was over long. But Yonge Street could only be called the longest street in the world if were fully synonymous with Highway 11, which has never been the case.
Geneva, Ohio
Three major routes pass through (or near) Geneva. Interstate 90, the northernmost east-west and coast-to-coast interstate, passes roughly two miles south of the city. There, a full-access interchange (exit 218) intersects Route 534, which passes through Geneva and terminates north of the city. Route 534 intersects Route 20, the longest road in the United States, in downtown Geneva.
Massachusetts Route 28
The original form of Route 28 was as a New England interstate route established in 1922 to run from Buzzards Bay to New Hampshire. The route itself was overlaid on several early turnpike roads constructed in the early 19th century. Except for an extension into Cape Cod in 1926, the overall highway layout and routing is largely unchanged from its original design. Route 28 has been realigned in several places when newer, higher quality roads were built. At a length of nearly , Route 28 is the longest state-numbered highway in Massachusetts, and the second-longest highway, behind U.S. Route 20.
Louisiana Highway 1 Bridge
The Louisiana Highway 1 Bridge, also known as the Gateway to the Gulf Expressway, is a concrete trestle toll bridge in the U.S. state of Louisiana. With a total length of 13,300 m or 43,600 ft (8 miles), it is one of the longest bridges in the world.
U.S. Route 64 in North Carolina
U.S. Route 64 (US 64) is the longest numbered route in the U.S. state of North Carolina, running from the Tennessee state line to the Outer Banks. The route passes through the westernmost municipality in the state, Murphy, and one of the most easternmost municipalities, Manteo, making US 64 a symbolic representation of the phrase "from Murphy to Manteo" which is used to refer to the expanse of the state. The highway is a major east-west route through the central and eastern portion of the state.
Texas State Highway 99
State Highway 99, also known as the Grand Parkway, is a highway in Texas, United States that opened its first section in 1994. When State Highway 99 is complete, it will be the longest beltway in the U.S., and the third (outer) loop within Houston–The Woodlands–Sugar Land metropolitan area, with Interstate 610 being the first (inner) loop, and Beltway 8 (Sam Houston Tollway) being the second (middle) loop. The proposed loop has been divided into 11 separate segments for construction and funding purposes.
Interstate 70 in Utah
Interstate 70 was dedicated on December 5, 1970, at the Ghost Rocks view area inside the swell, even though it would take another 20 years to fully complete the freeway. At the ceremony the mayors of cities recently made neighbors, including Grand Junction, Colorado, introduced themselves. Then Governor Calvin L. Rampton noted that I-70 was the longest road the U.S. had built over a completely new route since the Alaska Highway, during World War II. It was also noted this was the longest piece of the Interstate Highway System to open at a given time.
Initially only two lanes, now the eastbound lanes, through the swell were constructed. The official highway map for Utah noted the new freeway, but qualified its existence with the words "two lanes open". The first portions of I-70 to be constructed to Interstate Highway standards were along the non-disputed portion of the route east of Green River.
U.S. Route 50
U.S. Route 50 (US 50) is a major east–west route of the U.S. Highway system, stretching just over from West Sacramento, California, to Ocean City, Maryland, on the Atlantic Ocean. Until 1972, when it was replaced by Interstate Highways west of the Sacramento area, it extended (by way of Stockton, the Altamont Pass, and the Bay Bridge) to San Francisco, near the Pacific Ocean. The Interstates were constructed later and are mostly separate from this route. It generally serves a corridor south of Interstates 70 and 80 and north of Interstates 64 and 40. The route runs through mostly rural desert and mountains in the Western United States, with the section through Nevada known as "The Loneliest Road in America". In the Midwest, US 50 continues through mostly rural areas of farms as well as a few large cities including Kansas City, Missouri; St. Louis, Missouri; and Cincinnati, Ohio. The route continues into the Eastern United States, where it passes through the Appalachian Mountains in West Virginia before heading through Washington, D.C. From there, US 50 continues through Maryland as a high-speed road to Ocean City. Signs at each end give the length as , but the actual distance is slightly less, due to realignments since the former figure was measured. US 50 passes through a total of 12 states; California, Nevada, Utah, Colorado, Kansas, Missouri, Illinois, Indiana, Ohio, West Virginia, Virginia, and Maryland, as well as the District of Columbia.
List of Interstate Highways in Illinois
The Interstate Highways in Illinois are all segments of the Interstate Highway System that are owned and maintained by the U.S. state of Illinois. The Illinois Department of Transportation (IDOT) is responsible for maintaining these highways in Illinois. The Interstate Highway System in Illinois consists of 13 primary highways and 11 auxiliary highways which cover . The Interstate Highway with the longest section in Illinois is Interstate 57 at ; the shortest is Interstate 41 at .
United States Numbered Highway System
In general, U.S. Routes do not have a minimum design standard, unlike the later Interstate Highways, and are not usually built to freeway standards. Some stretches of U.S. Routes do meet those standards. Many are designated using the main streets of the cities and towns through which they run. New additions to the system, however, must "substantially meet the current AASHTO design standards". As of 1989, the United States Numbered Highways system has a total length of .
Delaware State Route System
The Delaware State Route System includes Delaware's portion of the Interstate Highway System and U.S. Highway System along with state routes. The system also includes special routes of the U.S. and state routes, such as alternate, business, and truck routes. These routes consist of a banner denoting the type of special route above the route marker. Alternate routes provide a second alignment of a route between two points. DE 10 Alternate provides an alternate routing to DE 10 between Willow Grove and Rising Sun by passing through Woodside while DE 10 passes through Camden. Business routes pass through the business area of a city while the main route bypasses it. DE 1 Business passes through the central portion of Milford while DE 1 bypasses the city to the east. Truck routes provide an alternate route for trucks around a certain portion of a route. DE 14 Truck provides a route for truck traffic that bypasses the section of DE 14 that passes through Harrington. Suffixed routes also exist for short alignments that branch off their parent routes, in which a letter suffix is added after the route number. DE 1 has three suffixed routes in the Rehoboth Beach area while DE 9A provides access to the Port of Wilmington from DE 9. In addition to these systems are other state roads designated with a maintenance road number.
DelDOT maintains a total of of state roads within Delaware, which comprises 89 percent of all roadway mileage in the state. Some exceptions to DelDOT maintenance include the bridges over the Chesapeake and Delaware Canal, which are maintained by the U.S. Army Corps of Engineers, and the Delaware Memorial Bridge, which is maintained by the Delaware River and Bay Authority (DRBA). A total of of Delaware's roadways are part of the National Highway System, a system of highways important to the United States's economy, defense, and mobility. This system includes all the Interstate Highways in Delaware, other principal arterials which connect to intermodal transportation facilities, and the Strategic Highway Network which provides connections to major military facilities in the United States. The longest route overall in Delaware is US 13 at , with DE 1 being the longest state route at . At a length of , I-95 is the longest of Delaware's three Interstate Highways. The shortest route is DE 491 at .
High-occupancy vehicle lane
As of October 2016, the longest continuous HOV facility in the U.S. is on I-15 in Utah, extending approximately from Spanish Fork to Layton with a single HOV lane each direction for a total of of HOV lanes. While the Utah facility is the longest, the I-495 Capital Beltway in the Washington, D.C., Metropolitan Area extends but has two HOV lanes in each direction for a total of of HOV lanes.
U.S. Route 20 in New York
U.S. Route 20 (US 20) is a part of the U.S. Highway System that runs from Newport, Oregon, to Boston, Massachusetts. In the U.S. state of New York, US 20 extends from the Pennsylvania state line at Ripley to the Massachusetts state line in the Berkshire Mountains. US 20 is the longest surface road in New York. It runs near the Lake Erie shore from Ripley to Buffalo and passes through the southern suburbs of Buffalo, the Finger Lakes, the glacial moraines of Central New York, and the city of Albany before crossing into Massachusetts. US 20 connects to all three major north–south Interstate Highways in Upstate New York: Interstate 390 (I-390) near Avon, I-81 south of Syracuse, and I-87 in Albany by way of Fuller Road Alternate.
Arkansas Highway System
The Arkansas Highway System is made up of all the highways designated as Interstates, U.S. Highways and State Highways in the US state of Arkansas. The system is maintained by the Arkansas Department of Transportation (ArDOT), known as the Arkansas State Highway Department (AHD) until 1977 and the Arkansas State Highway and Transportation Department (AHTD) from 1977 to 2017. The system contains of Interstates, U.S. Routes, state highways, and special routes. The shortest members are unsigned state highways Arkansas Highway 806 and Arkansas Highway 885, both in length. The longest route is U.S. Route 67, which runs from Texarkana to Missouri.
Interstate 91
Interstate 91 (I-91) is an Interstate Highway in the New England region of the United States. It provides the primary north–south thoroughfare in the western part of the region. The Interstate's southern end is in New Haven, Connecticut, at Interstate 95 and its northern end is at Derby Line, Vermont, a village in the town of Derby at the Canadian border, where it continues past the Derby Line-Rock Island Border Crossing as Autoroute 55. I-91 is the longest of three Interstate highways whose entire route is located within the New England states (the other two highways being I-89 and I-93) and is also the only primary (two-digit) Interstate Highway in New England to intersect all five of the others that run through the region. The largest cities along its route are New Haven, Connecticut, Hartford, Connecticut, Springfield, Massachusetts, Brattleboro, Vermont, White River Junction, Vermont, and St. Johnsbury, Vermont in order from south to north.
Pennsylvania Turnpike
When it opened, the turnpike became the first long-distance limited-access road in the United States. It provided a direct link between the Mid-Atlantic and Midwestern states, and cut travel time between Pittsburgh and Harrisburg from nearly six to about two-and-a-half hours. The road was given the nicknames "dream highway" and "the World's Greatest Highway" by the turnpike commission, and was also known as "the Granddaddy of the Pikes." Postcards and other souvenirs promoted the original stretch's seven tunnels through the Appalachians.
Tennessee State Route 1
State Route 1 (SR 1), known as the Memphis to Bristol Highway, is a mostly-unsigned state highway in the U.S. state of Tennessee. It stretches all the way from the Arkansas state line at Memphis in the southwest corner of the state to Bristol in the northeast part. Most of the route travels concurrently with U.S. Route 70 (US 70) and US 11W. It is the longest highway of any kind in the state of Tennessee.
Interstate 70
Prior to the construction of I-70, the swell was inaccessible via paved roads and relatively undiscovered. Once this section was opened to traffic in 1970, it became the longest stretch of interstate highway with no services and the first highway in the U.S. built over a completely new route since the Alaska Highway. It also became the longest piece of interstate highway to be opened at one time.
Although opened in 1970, this section was not formally complete until 1990, when a second steel arch bridge spanning Eagle Canyon was opened to traffic.
California State Route 1
State Route 1 (SR 1) is a major north–south state highway that runs along most of the Pacific coastline of the U.S. state of California. At a total of just over , it is the longest state route in California. SR 1 has several portions designated as either Pacific Coast Highway (PCH), Cabrillo Highway, Shoreline Highway, or Coast Highway. Its southern terminus is at Interstate 5 (I-5) near Dana Point in Orange County and its northern terminus is at U.S. Route 101 (US 101) near Leggett in Mendocino County. SR 1 also at times runs concurrently with US 101, most notably through a stretch in Ventura and Santa Barbara counties, and across the Golden Gate Bridge.
Interstate 75
Interstate 75 (I-75) is a major north–south Interstate Highway in the Great Lakes and Southeastern regions of the United States. As with most Interstates that end in a five, it is a major cross-country, north–south route, one of the longest in the U.S., from southern Florida to the northern tip of Michigan. It travels from State Road 826 (SR 826, Palmetto Expressway) and SR 924 (Gratigny Parkway) on the Hialeah–Miami Lakes border (northwest of Miami, Florida) to Sault Ste. Marie, Michigan, at the Canadian border.
U.S. Route 45
In the state of Illinois, U.S. 45 runs from a bridge across the Ohio River from Paducah, Kentucky, through Shawnee National Forest and north to the Wisconsin border east of Antioch, Illinois. With a length of in Illinois, U.S. 45 is the longest numbered route in Illinois.
U.S. Route 98 in Florida
U.S. Route 98 (US 98) is an east-west United States highway that runs from the Alabama-Florida state line to southern Florida. It is the longest US road in Florida. It was established in 1933 as a route between Pensacola and Apalachicola, and has since been extended eastward across the Florida Peninsula and westward into Mississippi. It runs along much of the Gulf Coast between Mobile, Alabama and Crystal River, Florida, including extensive sections closely following the coast eastward from the Alabama-Florida state line to St. Marks. At a length of 671 miles, US 98 is the longest numbered route in the state of Florida.
Interstate 240 (Oklahoma)
Interstate 240 (I-240) is an Interstate Highway in Oklahoma, United States, that runs 16.22 miles (26.1 km) west from Interstate 40 to Interstate 44 in southern Oklahoma City. After its terminus in southwest Oklahoma City, the main I-240 roadbed becomes Interstate 44 and Airport Road toward Will Rogers World Airport. The interstate overlaps SH-3, the longest Oklahoma state highway, for its entire length.
U.S. Route 40 in Colorado
In the U.S. state of Colorado, U.S. Highway 40 is a major east–west route. It crosses the Rocky Mountains, passing over the Continental Divide at Berthoud Pass before descending to the front range. It then traverses through the Denver Metro Area, then exits by following I-70 and US 287. It is concurrent with US 287 for about 145 miles to Kit Carson. US 40 exits into Kansas east of Arapahoe in Cheyenne. At a length of almost 500 miles, US 40 is the longest numbered route in the state.
Plainfield, Illinois
Certain older parts of Plainfield have suffered from extreme traffic congestion. Before Interstate 55 was built just east of the town in the late 1950s, U.S. Route 30, The Lincoln Highway and U.S. Route 66 (sometimes referred to as "The Mother Road") merged into one street for three blocks on what is now Illinois Route 59. This merge is now only shared by U.S. 30 and Lincoln Highway, between Plainfield/Joliet Road on the south to Lockport Street on the north, but continues to be an area of heavy traffic congestion even outside heavy commuting periods. At one time, the two longest paved highways in the world (Lincoln Highway and U.S. Route 66) crossed within Plainfield. The highways only crossed each other twice and both locations are in Will County. The other location is in neighboring Joliet.
U.S. Route 206
U.S. Route 206 (US 206) is a north–south United States highway in New Jersey and Pennsylvania, United States. Only about a half a mile (800 m) of its length is in Pennsylvania; the Milford-Montague Toll Bridge carries it over the Delaware River into New Jersey, where it is the remainder of the route. The highway's northern terminus is near Milford, Pennsylvania at an intersection with US 209; some sources and signs show an overlap with US 209 to end at its parent route US 6. Its southern terminus is in Hammonton, New Jersey at an intersection with Route 54 and US 30. For much of its length, US 206 is a rural two-lane undivided road that passes through the Pine Barrens, agricultural areas, and the Appalachian Mountains of northwestern New Jersey, with some urban and suburban areas. The route connects several cities and towns, including Bordentown, Trenton, Princeton, Somerville, Netcong, and Newton. The road is known as the Disabled American Veterans Highway for much of its length.
North America
The Pan-American Highway route in the Americas is the portion of a network of roads nearly in length which travels through the mainland nations. No definitive length of the Pan-American Highway exists because the US and Canadian governments have never officially defined any specific routes as being part of the Pan-American Highway, and Mexico officially has many branches connecting to the US border. However, the total length of the portion from Mexico to the northern extremity of the highway is roughly .
U.S. Route 81
U.S. Route 81 is a major north-south highway that extends for 1220 miles in the central United States and is one of the earliest United States Numbered Highways established in 1926 by the US Department of Agriculture Bureau of Public Roads.
Maine State Route 11
At just over , SR 11 is the longest state highway in Maine, and the second longest numbered highway in the entire state (behind US 1, which runs just over in Maine). It is almost longer than Maine's longest Interstate Highway, its section of Interstate 95 (I-95). Overall, Route 11 in Maine, New Hampshire, and Vermont are long.