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U.S. Route 40 or U.S. Highway 40 (US 40), also known as the Main Street of America, is a major east–west
United States Highway The United States Numbered Highway System (often called U.S. Routes or U.S. Highways) is an integrated network of roads and highways numbered within a nationwide grid in the contiguous United States. As the designation and numbering of these ...
traveling across the
United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 U.S. state, states, a Washington, D.C., federal district, five ma ...
from the
Mountain States The Mountain states (also known as the Mountain West or the Interior West) form one of the nine geographic divisions of the United States that are officially recognized by the United States Census Bureau. It is a subregion of the Western Un ...
to the Mid-Atlantic States. 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 San Francisco (; Spanish for "Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the fourth most populous in California and 17th ...
, and
Atlantic City, New Jersey Atlantic City, often known by its initials A.C., is a coastal resort city in Atlantic County, New Jersey, United States. The city is known for its casinos, Boardwalk (entertainment district), boardwalk, and beaches. In 2020 United States censu ...
. US 40 currently ends at a junction with
I-80 Interstate 80 (I-80) is an east–west transcontinental freeway that crosses the United States from downtown San Francisco, California, to Teaneck, New Jersey, in the New York metropolitan area. The highway was designated in 1956 as o ...
in
Silver Summit, Utah Silver Summit is a census-designated place (CDP) in Summit County, Utah, United States. Prior to the 2010 Census, the area was designated as North Snyderville Basin CDP. The population was 1,821 at the 2000 census. Geography According to the Un ...
, just outside
Salt Lake City Salt Lake City (often shortened to Salt Lake and abbreviated as SLC) is the capital and most populous city of Utah, United States. It is the seat of Salt Lake County, the most populous county in Utah. With a population of 200,133 in 2020, th ...
. West of this point US 40 was functionally replaced with I-80, and as these segments of I-80 were constructed the western portion of US 40 was truncated several times. Starting at its western terminus in
Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to its ...
, US 40 crosses a total of 12 states, including
Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...
,
Kansas Kansas () is a state in the Midwestern United States. Its capital is Topeka, and its largest city is Wichita. Kansas is a landlocked state bordered by Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to ...
,
Missouri Missouri is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it is bordered by eight states (tied for the most with Tennessee ...
,
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Roc ...
,
Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th ...
,
Ohio Ohio () is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Of the List of states and territories of the United States, fifty U.S. states, it is the List of U.S. states and territories by area, 34th-l ...
,
West Virginia West Virginia is a state in the Appalachian, Mid-Atlantic and Southeastern regions of the United States.The Census Bureau and the Association of American Geographers classify West Virginia as part of the Southern United States while the ...
,
Pennsylvania Pennsylvania (; (Pennsylvania Dutch: )), officially the Commonwealth of Pennsylvania, is a state spanning the Mid-Atlantic, Northeastern, Appalachian, and Great Lakes regions of the United States. It borders Delaware to its southeast, Ma ...
,
Maryland Maryland ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; ...
,
Delaware Delaware ( ) is a state in the Mid-Atlantic region of the United States, bordering Maryland to its south and west; Pennsylvania to its north; and New Jersey and the Atlantic Ocean to its east. The state takes its name from the adjacen ...
, and
New Jersey New Jersey is a U.S. state, state in the Mid-Atlantic States, Mid-Atlantic and Northeastern United States, Northeastern regions of the United States. It is bordered on the north and east by the state of New York (state), New York; on the ea ...
. US 40 passes through or by major cities including
Denver Denver () is a consolidated city and county, the capital, and most populous city of the U.S. state of Colorado. Its population was 715,522 at the 2020 census, a 19.22% increase since 2010. It is the 19th-most populous city in the United ...
,
Kansas City The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With and a population of more ...
,
St. Louis St. Louis () is the second-largest city in Missouri, United States. It sits near the confluence of the Mississippi and the Missouri Rivers. In 2020, the city proper had a population of 301,578, while the bi-state metropolitan area, which e ...
, Indianapolis,
Columbus Columbus is a Latinized version of the Italian surname "''Colombo''". It most commonly refers to: * Christopher Columbus (1451-1506), the Italian explorer * Columbus, Ohio, capital of the U.S. state of Ohio Columbus may also refer to: Places ...
,
Baltimore Baltimore ( , locally: or ) is the List of municipalities in Maryland, most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic (United States), Mid-Atlantic, and List of United States cities by popula ...
, and Wilmington. Three former and four current state capitals lie along the route.The current capitals are Denver, Topeka, Indianapolis, and Columbus. Vandalia was a former capital of Illinois, Zanesville was a former capital of Ohio, and Wheeling was a former capital of West Virginia. Prior to truncation the route served Sacramento, Salt Lake City and the former capital of California, Vallejo. For much of its route, US 40 runs parallel to or concurrently with several major
Interstate Highway 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. T ...
s:
I-70 Interstate 70 (I-70) is a major east–west Interstate Highway in the United States that runs from I-15 near Cove Fort, Utah, to a park and ride lot just east of I-695 in Baltimore, Maryland, and is the fifth-longest Interstate in the co ...
from
Denver, Colorado Denver () is a consolidated city and county, the capital, and most populous city of the U.S. state of Colorado. Its population was 715,522 at the 2020 census, a 19.22% increase since 2010. It is the 19th-most populous city in the United ...
, to
Washington, Pennsylvania Washington is a city in and the county seat of Washington County, Pennsylvania. A part of the Greater Pittsburgh area in the southwestern part of the state, the city is home to Washington & Jefferson College and Pony League baseball. The popu ...
; and again from
Hancock, Maryland Hancock is a town in Washington County, Maryland, United States. The population was 1,546 at the 2010 census. The Western Maryland community is notable for being located at the narrowest part of the state. The north-south distance from the Penns ...
to Baltimore;
I-64 Interstate 64 (I-64) is an east–west Interstate Highway in the Eastern United States. Its western terminus is at I-70, U.S. Route 40 (US 40), and US 61 in Wentzville, Missouri. Its eastern terminus is at an interchange ...
in parts of Missouri and Illinois; I-68 along the
Maryland Maryland ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; ...
Panhandle; and
I-95 Interstate 95 (I-95) is the main north–south Interstate Highway on the East Coast of the United States, running from US Route 1 (US 1) in Miami, Florida, to the Houlton–Woodstock Border Crossing between Maine and the Canadi ...
from Baltimore to
New Castle, Delaware New Castle is a city in New Castle County, Delaware, United States. The city is located six miles (10 km) south of Wilmington and is situated on the Delaware River. As of the 2010 census, the city's population was 5,285. History New Cast ...
. The route was built on top of several older highways, most notably the
National Road The National Road (also known as the Cumberland Road) was the first major improved highway in the United States built by the Federal Government of the United States, federal government. Built between 1811 and 1837, the road connected the Pot ...
and the
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 ...
. The National Road was created in 1806 by an act of Congress to serve as the first federally funded highway construction project. When completed it connected
Cumberland, Maryland Cumberland is a U.S. city in and the county seat of Allegany County, Maryland. It is the primary city of the Cumberland, MD-WV Metropolitan Statistical Area. At the 2020 census, the city had a population of 19,076. Located on the Potomac River, ...
, with
Vandalia, Illinois Vandalia is a city in and the county seat of Fayette County, Illinois, United States. At the 2020 Census, the population was 7,458. Vandalia is northeast of St. Louis, on the Kaskaskia River. It served as the state capital of Illinois ...
. The Victory Highway was designated as a memorial to
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...
veterans and ran from Kansas City, Missouri to San Francisco. Other important roads that have become part of US 40 include
Zane's Trace Zane's Trace is a frontier road constructed under the direction of Col. Ebenezer Zane through the Northwest Territory of the United States, in what is now the state of Ohio. Many portions were based on traditional Native American trails. Con ...
in Ohio, Braddock Road in Maryland and Pennsylvania, the
Black Horse Pike The Black Horse Pike is a designation used for a number of different roadways that had been part of a historic route connecting the Camden area to the area of Atlantic City, New Jersey. Roadways now bearing the Black Horse Pike designation include ...
in New Jersey, part of the
Oregon Trail The Oregon Trail was a east–west, large-wheeled wagon route and emigrant trail in the United States that connected the Missouri River to valleys in Oregon. The eastern part of the Oregon Trail spanned part of what is now the state of Kans ...
in Kansas, and the
Lincoln Highway The Lincoln Highway is the first transcontinental highway in the United States and one of the first highways designed expressly for automobiles. Conceived in 1912 by Indiana entrepreneur Carl G. Fisher, and formally dedicated October 31, 1913 ...
throughout most of
California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the ...
.


Route description

, - , UT , 174.54 , 280.89 , - , CO , 496.44 , 798.94 , - , KS , 423.67 , 681.83 , - , MO , 255.05 , 410.46 , - , IL , 159.99 , 257.48 , - , IN , 143.95 , 231.67 , - , OH , 228.37 , 367.53 , - , WV , 15.87 , 25.54 , - , PA , 82.46 , 132.71 , - , MD , 220.88 , 355.47 , - , DE , 17.18 , 27.65 , - , NJ , 64.28 , 103.45


Utah

The western terminus of US 40 is in
Silver Summit, Utah Silver Summit is a census-designated place (CDP) in Summit County, Utah, United States. Prior to the 2010 Census, the area was designated as North Snyderville Basin CDP. The population was 1,821 at the 2000 census. Geography According to the Un ...
at an interchange with
Interstate 80 Interstate 80 (I-80) is an east–west transcontinental freeway that crosses the United States from downtown San Francisco, California, to Teaneck, New Jersey, in the New York metropolitan area. The highway was designated in 1956 as one ...
, several miles north of Park City, at Silver Creek Junction. The road is concurrent with US 189 until it has reached Heber City. US 40 is a limited access highway from the I-80 junction to its intersection with
Utah State Route 32 State Route 32 (SR-32) is a state highway in Wasatch and Summit Counties in the U.S. state of Utah. Most of the highway is an old routing of U.S. Route 189 that became disconnected from the rest of US-189 during the construction of the Jorda ...
(SR-32), approximately south of Park City. From there, the road takes a generally southerly course to Heber City. In Heber City, there is an intersection with SR-113. One mile later, US 189 splits off. There are no more major intersections until US 40 has reached Fruitland, as it meets SR-208. About 18 miles later, the road enters
Duchesne Duchesne is a surname. Notable people with the surname include: *Joseph Duchesne (c. 1544–1609), French physician and chemist. Physician-in-ordinary to King Henry IV *André Duchesne (1584–1640), French historian *François Duchesne (1616–16 ...
. In Duchesne, it meets US 191 and SR-87. US 40 passes Duchesne and starts a concurrency. The concurrency continues into Roosevelt, Fort Duchesne and Vernal. In Roosevelt, it meets SR-87 again in a five-point intersection. There are two intersections with SR-121, in Roosevelt and Vernal. In Fort Duchesne, there is an intersection with
SR-88 The SR 88 (Singapore Rifle 88) is an assault rifle designed and manufactured in Singapore by Chartered Industries of Singapore (CIS, now ST Kinetics). Development Following the poor sales of the SAR 80, and with their involvement with the Ste ...
. After US 40 passes Vernal, US 191 splits off and the concurrency ends. After that, there are no more major intersections until US 40 reaches
Naples Naples (; it, Napoli ; nap, Napule ), from grc, Νεάπολις, Neápolis, lit=new city. is the regional capital of Campania and the third-largest city of Italy, after Rome and Milan, with a population of 909,048 within the city's adminis ...
, as it meets SR-45. About later, US 40 enters Jensen. In Jensen, there is an intersection with SR-149. About later, the road enters
Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...
.


Colorado

US 40 enters
Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...
, west of
Dinosaur Dinosaurs are a diverse group of reptiles of the clade Dinosauria. They first appeared during the Triassic period, between 243 and 233.23  million years ago (mya), although the exact origin and timing of the evolution of dinosaurs is t ...
. In Dinosaur, there is an intersection with
Colorado State Highway 64 State Highway 64 (SH 64) is a two-lane state highway connecting the towns of Dinosaur and Meeker in the western part of the U.S. state of Colorado. It is located in both Moffat and Rio Blanco counties. The western end of SH 64 is part of th ...
. After passing Dinosaur, there are no more major intersections until US 40 reaches Maybell, as it meets with
Colorado State Highway 318 State Highway 318 (SH 318) is a state highway in Moffat County, Colorado. SH 318's western terminus is at Brown's Park Road at the Utah state line, and the eastern terminus is at U.S. Route 40 (US 40) in Maybell. Route descriptio ...
. 30 miles later, the road enters Craig. In Craig, US 40 starts a very short concurrency with State Highway 13 (SR 13). After Craig, SH 13 splits off. The road then passes through Hayden without major intersections. Then it exits Hayden and enters Steamboat Springs. There is an intersection with SH 131 and SH 14. US 40 then continues southeast into Kremmling. In Kremmling, there is an intersection with SH 134 and SH 9. It then exits Kremmling and enters Granby. There is an intersection with US 34. The road then passes
Fraser Fraser may refer to: Places Antarctica * Fraser Point, South Orkney Islands Australia * Fraser, Australian Capital Territory, a suburb in the Canberra district of Belconnen * Division of Fraser (Australian Capital Territory), a former federal ...
and Winter Park without major intersections. About later, US 40 starts a concurrency with
I-70 Interstate 70 (I-70) is a major east–west Interstate Highway in the United States that runs from I-15 near Cove Fort, Utah, to a park and ride lot just east of I-695 in Baltimore, Maryland, and is the fifth-longest Interstate in the co ...
. About later, I-70 splits off. s later, it is concurrent again. later, I-70 splits off again. After the second concurrency with I-70, US 40 enters
Denver Denver () is a consolidated city and county, the capital, and most populous city of the U.S. state of Colorado. Its population was 715,522 at the 2020 census, a 19.22% increase since 2010. It is the 19th-most populous city in the United ...
. The road passes through downtown Denver on
Colfax Avenue Colfax Avenue is the main street that runs east–west through the Denver metropolitan area in Colorado. As U.S. Highway 40, it was one of two principal highways serving Denver before the Interstate Highway System was constructed. In the local ...
, and has intersections with SH 391, SH 121, SH 95, and SH 2 and an interchange with US 287. The route through Denver also serves as the business loop for I-70. East of Denver, US 40 passes through
Aurora An aurora (plural: auroras or aurorae), also commonly known as the polar lights, is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of bri ...
and becomes concurrent with I-70 once again. later, it enters Limon. In Limon, I-70 splits off, however the road is still concurrent with US 287. There is an intersection with SH 71. US 40 then passes Hugo without major intersections. In
Wild Horse The wild horse (''Equus ferus'') is a species of the genus ''Equus'', which includes as subspecies the modern domesticated horse (''Equus ferus caballus'') as well as the endangered Przewalski's horse (''Equus ferus przewalskii''). The Euro ...
, it meets SH 94. About later, the road enters
Kit Carson Christopher Houston Carson (December 24, 1809 – May 23, 1868) was an American frontiersman. He was a fur trapper, wilderness guide, Indian agent, and U.S. Army officer. He became a frontier legend in his own lifetime by biographies and ...
. There is an intersection with SH 59. After Kit Carson, US 287 splits off and the concurrency ends. After that, there are no more major intersections until US 40 reaches
Cheyenne Wells Cheyenne Wells is the Statutory Town that is the county seat and the most populous municipality of Cheyenne County, Colorado, United States. The town population was 758 at the 2020 United States Census. History The community was named for th ...
, as it meets US 385 in an interchange. The road then passes
Arapahoe The Arapaho (; french: Arapahos, ) are a Native American people historically living on the plains of Colorado and Wyoming. They were close allies of the Cheyenne tribe and loosely aligned with the Lakota and Dakota. By the 1850s, Arapaho ba ...
without major intersections. later, US 40 enters Kansas.


Kansas

US 40 enters
Kansas Kansas () is a state in the Midwestern United States. Its capital is Topeka, and its largest city is Wichita. Kansas is a landlocked state bordered by Nebraska to the north; Missouri to the east; Oklahoma to the south; and Colorado to ...
near the unincorporated community of Weskan. The first sizable town it enters is Sharon Springs, where it intersects K-27. From there it goes northeast to
Oakley Oakley may refer to: Places Antarctica *Oakley Glacier United Kingdom * Oakley, Bedfordshire, England *Oakley, Buckinghamshire, England *Oakley, Dorset, England *Oakley, Fife, Scotland * Oakley, Gloucestershire, England * Oakley, Hampshire, En ...
and follows Eagle Eye Road before merging with I-70 east of town. The two routes remain merged until
Topeka Topeka ( ; Kansa: ; iow, Dópikˀe, script=Latn or ) is the capital city of the U.S. state of Kansas and the seat of Shawnee County. It is along the Kansas River in the central part of Shawnee County, in northeast Kansas, in the Central ...
, although the prior alignment of US 40, named Old Highway 40, parallels I-70 for most of the way. From Ellsworth to Salina, the old alignment of US 40 is signed as K-140. In Topeka, US 40 leaves I-70 at exit 366, follows the Oakland Expressway concurrent with K-4 north to 6th Avenue, then heads east along 6th Avenue out of town. Through Topeka, US 40 closely follows the route of the
Oregon Trail The Oregon Trail was a east–west, large-wheeled wagon route and emigrant trail in the United States that connected the Missouri River to valleys in Oregon. The eastern part of the Oregon Trail spanned part of what is now the state of Kans ...
. At the
Shawnee The Shawnee are an Algonquian-speaking indigenous people of the Northeastern Woodlands. In the 17th century they lived in Pennsylvania, and in the 18th century they were in Pennsylvania, Ohio, Indiana and Illinois, with some bands in Kentucky a ...
-
Douglas Douglas may refer to: People * Douglas (given name) * Douglas (surname) Animals * Douglas (parrot), macaw that starred as the parrot ''Rosalinda'' in Pippi Longstocking * Douglas the camel, a camel in the Confederate Army in the American Civi ...
county line near Big Springs, US 40 crosses to the south of I-70 and enters Lawrence from the west along West 6th Street. At the west side of Lawrence, the route is joined by K-10 and travels south and east to the junction with US 59 and then runs north with US 59 to cross the
Kansas River The Kansas River, also known as the Kaw, is a river in northeastern Kansas in the United States. It is the southwesternmost part of the Missouri River drainage, which is in turn the northwesternmost portion of the extensive Mississippi River dr ...
. It follows North 2nd and North 3rd Streets, crosses back under I-70, leaves US 59, and merges with US 24 before leaving town. US 40 remains merged with US 24 as the two routes travel northeast to the town of Tonganoxie. From there, the merged routes turn due east toward
Kansas City, Kansas Kansas City, abbreviated as "KCK", is the third-largest city in the U.S. state of Kansas, and the county seat of Wyandotte County. It is an inner suburb of the older and more populous Kansas City, Missouri, after which it is named. As of ...
. In Kansas City, US 40 and US 24 intersect US 73 and K-7, and turning south toward
Interstate 70 Interstate 70 (I-70) is a major east–west Interstate Highway in the United States that runs from I-15 near Cove Fort, Utah, to a park and ride lot just east of I-695 in Baltimore, Maryland, and is the fifth-longest Interstate in the co ...
. US 40, along with US 24, then merge onto I-70 and recross the Kansas River over the
Lewis and Clark Viaduct The Intercity Viaduct (officially the Lewis and Clark Viaduct since 1969) is an automobile and pedestrian crossing of the Kansas River in the United States. Designed by Waddell and Hedrick, this four lane, two level deck truss bridge opened to th ...
just before entering Kansas City, Missouri. On December 1, 2008, US 40, along with US 24 and US 73, was rerouted south along K-7 west of Kansas City to the intersection with I-70. Before this date, US 40 and US 24 continued along State Avenue to College Parkway before turning right to follow Turner Diagonal for where US 40 joined Interstate 70 for the duration of its journey eastward toward Missouri. In 1951, the State of Kansas designated U.S. Route 40 as a
Blue Star Memorial Highway Blue Star Memorial Highways are highways in the United States that are marked to pay tribute to the U.S. armed forces. The National Council of State Garden Clubs, now known as National Garden Clubs, Inc., started the program in 1945 after World W ...
from border to border.


Missouri

US 40 enters
Missouri Missouri is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it is bordered by eight states (tied for the most with Tennessee ...
in
Kansas City The Kansas City metropolitan area is a bi-state metropolitan area anchored by Kansas City, Missouri. Its 14 counties straddle the border between the U.S. states of Missouri (9 counties) and Kansas (5 counties). With and a population of more ...
along a concurrency with
I-70 Interstate 70 (I-70) is a major east–west Interstate Highway in the United States that runs from I-15 near Cove Fort, Utah, to a park and ride lot just east of I-695 in Baltimore, Maryland, and is the fifth-longest Interstate in the co ...
. It leaves I-70 at exit 7A. US 40 parallels I-70 to the north through Kansas City until exit 11, where it crosses and parallels it to the south through the suburbs of
Independence Independence is a condition of a person, nation, country, or state in which residents and population, or some portion thereof, exercise self-government, and usually sovereignty, over its territory. The opposite of independence is the s ...
,
Lee's Summit Lee's Summit is a city located within the counties of Jackson (primarily) and Cass in the U.S. state of Missouri. It is a suburb of Kansas City, Missouri. As of the 2020 census its population was 101,108, making it the sixth-largest city in b ...
, Blue Springs, and Grain Valley before it rejoins I-70 at exit 24. An older alignment carries the designation "Old US 40". US 40 stays with I-70 until it reaches Boonville, where it leaves at exit 101, along with Business Loop 70. Both designations follow Ashley Road, before US 40 leaves and heads north along Main Street. After crossing the Missouri River in Boonville, US 40 turns east before rejoining I-70 again at exit 121 on the outskirts of
Columbia Columbia may refer to: * Columbia (personification), the historical female national personification of the United States, and a poetic name for America Places North America Natural features * Columbia Plateau, a geologic and geographic region in ...
. The two routes remain concurrent until exit 210A in
Wentzville Wentzville is an exurb of St. Louis that is located in western St. Charles County, Missouri, United States. As of the 2020 census, the city had a total population of 44,372, making it the 15th largest city in Missouri. Wentzville has been the ...
. From Wentzville, US 40 now joins a concurrency with
I-64 Interstate 64 (I-64) is an east–west Interstate Highway in the Eastern United States. Its western terminus is at I-70, U.S. Route 40 (US 40), and US 61 in Wentzville, Missouri. Its eastern terminus is at an interchange ...
and
US 61 U.S. Route 61 or U.S. Highway 61 (U.S. 61) is a major United States highway that extends between New Orleans, Louisiana and the city of Wyoming, Minnesota. The highway generally follows the course of the Mississippi River and is designate ...
and heads southeast, crossing the Missouri River again over the
Daniel Boone Bridge The Daniel Boone Bridge is the name for two bridges carrying Interstate 64, U.S. Route 40 and U.S. Route 61 across the Missouri River between St. Louis County and St. Charles County, Missouri. The older bridge, which carries westbound traffic, ...
in St. Charles. US 40 stays joined with I-64 and leaves the state in
St. Louis St. Louis () is the second-largest city in Missouri, United States. It sits near the confluence of the Mississippi and the Missouri Rivers. In 2020, the city proper had a population of 301,578, while the bi-state metropolitan area, which e ...
on the
Poplar Street Bridge The Congressman William L. Clay Sr. Bridge, formerly known as the Bernard F. Dickmann Bridge and popularly as the Poplar Street Bridge or PSB, completed in 1967, is a deck girder bridge across the Mississippi River between St. Louis, Missouri, ...
across the
Mississippi River The Mississippi River is the second-longest river and chief river of the second-largest drainage system in North America, second only to the Hudson Bay drainage system. From its traditional source of Lake Itasca in northern Minnesota, it ...
, along with
I-64 Interstate 64 (I-64) is an east–west Interstate Highway in the Eastern United States. Its western terminus is at I-70, U.S. Route 40 (US 40), and US 61 in Wentzville, Missouri. Its eastern terminus is at an interchange ...
and
I-55 Interstate 55 (I-55) is a major Interstate Highway in the central United States. As with most primary Interstates that end in a five, it is a major cross-country, north–south route, connecting the Gulf of Mexico to the Great Lakes. The h ...
. Until 1926, US 40 in Missouri was Route 2. On January 2, 2008, five miles (8 km) of the route in St. Louis was closed both eastbound and westbound from I-170 to I-270. It re-opened December 15, 2008 two weeks ahead of the originally scheduled date of December 31, 2008. On December 13, 2008, another five-mile (8 km) section of the freeway closed both ways from I-170 to the Kingshighway exit in the city. It was re-opened on December 7, 2009. The entire freeway is now open for travel, with the speed limit raised to 60 mph on most of the stretch. It is also now a full freeway all the way from Downtown St. Louis to Wentzville. When complete, the entire new freeway was signed as
Interstate 64 Interstate 64 (I-64) is an east–west Interstate Highway in the Eastern United States. Its western terminus is at Interstate 70 in Missouri, I-70, U.S. Route 40 in Missouri, U.S. Route 40 (US 40), and U.S. Route 61 in Missouri, ...
.


Illinois

The next of US 40 lie within the state of
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Roc ...
. Except where the route has been re-aligned with Interstate 70, it is an entirely undivided surface route. Formerly a major highway, it has lost most of its non-local traffic to Interstate 70. Some early bypasses of towns were built with the apparent intention of twinning them as a divided highway with access limited to intersections. I-70 uses none of those old bypasses that remain as sections of US 40. The westernmost portion of the historic
National Road The National Road (also known as the Cumberland Road) was the first major improved highway in the United States built by the Federal Government of the United States, federal government. Built between 1811 and 1837, the road connected the Pot ...
lies on most of the US 40 alignment in Illinois. US 40 crosses into Illinois at
East St. Louis East or Orient is one of the four cardinal directions or points of the compass. It is the opposite direction from west and is the direction from which the Sun rises on the Earth. Etymology As in other languages, the word is formed from the fac ...
on the Poplar Street Bridge concurrent with
I-55 Interstate 55 (I-55) is a major Interstate Highway in the central United States. As with most primary Interstates that end in a five, it is a major cross-country, north–south route, connecting the Gulf of Mexico to the Great Lakes. The h ...
/
I-64 Interstate 64 (I-64) is an east–west Interstate Highway in the Eastern United States. Its western terminus is at I-70, U.S. Route 40 (US 40), and US 61 in Wentzville, Missouri. Its eastern terminus is at an interchange ...
. The route has a close relationship with
I-70 Interstate 70 (I-70) is a major east–west Interstate Highway in the United States that runs from I-15 near Cove Fort, Utah, to a park and ride lot just east of I-695 in Baltimore, Maryland, and is the fifth-longest Interstate in the co ...
for the remainder of the time it spends in the state, being directly concurrent with or paralleling it throughout Illinois. Between
Pocahontas Pocahontas (, ; born Amonute, known as Matoaka, 1596 – March 1617) was a Native American woman, belonging to the Powhatan people, notable for her association with the colonial settlement at Jamestown, Virginia. She was the daughter o ...
and Mulberry Grove, US 40 passes through several small towns. In
Vandalia, Illinois Vandalia is a city in and the county seat of Fayette County, Illinois, United States. At the 2020 Census, the population was 7,458. Vandalia is northeast of St. Louis, on the Kaskaskia River. It served as the state capital of Illinois ...
, the former state capitol, it follows Veterans Avenue and Kennedy Boulevard (with
US 51 U.S. Route 51 or U.S. Highway 51 (US 51) is a major south-north United States highway that extends from the western suburbs of New Orleans, Louisiana, to within of the Wisconsin–Michigan state line. As most of the United States Numbered Highw ...
) through town. The Old State House in Vandalia marks the western terminus of the
National Road The National Road (also known as the Cumberland Road) was the first major improved highway in the United States built by the Federal Government of the United States, federal government. Built between 1811 and 1837, the road connected the Pot ...
, one of the earliest roads upon which US 40 was designated. From Vandalia, the road continues to the northeast passing through the early German settlement town of
Teutopolis Teutopolis is a village in Effingham County, Illinois, United States. As of the 2020 census it had a population of 1,618. Geography Teutopolis is located in northeastern Effingham County at (39.132125, -88.478435). U.S. Route 40 (National Road ...
and several city streets in Effingham. Beyond Effingham, US 40 passes through many small unincorporated towns before leaving the state near
Marshall Marshall may refer to: Places Australia * Marshall, Victoria, a suburb of Geelong, Victoria Canada * Marshall, Saskatchewan * The Marshall, a mountain in British Columbia Liberia * Marshall, Liberia Marshall Islands * Marshall Islands, an ...
.


Indiana

US 40 enters
Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th ...
from the west at unincorporated Liggett along with I-70. US 40 leaves the interstate at exit 11 and heads north through the east side of
Terre Haute Terre Haute ( ) is a city in and the county seat of Vigo County, Indiana, United States, about 5 miles east of the state's western border with Illinois. As of the 2010 census, the city had a population of 60,785 and its metropolitan area had a ...
with SR 46. The road leaves the city to the northeast upon reaching Wabash Avenue. Upon leaving Terre Haute, US 40 passes through the small towns of
Seelyville Seelyville is a town in Lost Creek Township, Vigo County, in the U.S. state of Indiana. The population was 1,029 at the 2010 census. It is part of the Terre Haute Metropolitan Statistical Area. History Seelyville was originally called the "Woodsm ...
,
Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...
, Knightsville and
Harmony In music, harmony is the process by which individual sounds are joined together or composed into whole units or compositions. Often, the term harmony refers to simultaneously occurring frequencies, pitches ( tones, notes), or chords. Howev ...
. Between Seelyville and Brazil, the road bypasses several small unincorporated communities which are served by State Road 340, a former alignment of US 40. The road continues to the northeast beyond Harmony, passing many unincorporated places such as Reelsville, Pleasant Gardens,
Manhattan Manhattan (), known regionally as the City, is the most densely populated and geographically smallest of the five Boroughs of New York City, boroughs of New York City. The borough is also coextensive with New York County, one of the List of co ...
, Putnamville, Mount Meridian, Stilesville and Belleville along the way to Plainfield, a suburb of Indianapolis. In Plainfield, US 40 is Main Street and passes The Shops at Perry Crossing and a nostalgic stainless steel diner. Upon leaving Plainfield, US 40 becomes Washington Street, where it passes by the northern edge of
Indianapolis International Airport Indianapolis International Airport is an international airport located seven miles (11 km) southwest of downtown Indianapolis in Marion County, Indiana, United States. It is owned and operated by the Indianapolis Airport Authority. Th ...
. After passing the airport, US 40 is now routed onto
Interstate 465 Interstate 465 (I-465), also known as the USS ''Indianapolis'' Memorial Highway, is the beltway circling Indianapolis, Indiana, United States. It is roughly rectangular in shape and has a perimeter of approximately . It lies almost complet ...
Southbound on the west side of Indianapolis. A sign along the entrance ramp advises motorists "For US 40 East, Follow I-465 South to Exit 46." This route bypasses downtown Indianapolis and instead goes through the southern part of Indianapolis; its nearest point is about south of the city center. (Previously, the highway did not join with I-465 but continued along Washington Street, where it entered Indianapolis proper near Eagle Creek, a tributary of the White River. In downtown Indianapolis, the old highway crossed White River on a bridge that is now pedestrian only and part of White River State Park and North of the current
Indianapolis Zoo The Indianapolis Zoo is a non-profit zoo, public aquarium, and botanical garden in Indianapolis, Indiana, United States. Incorporated in 1944, the Indianapolis Zoological Society established the first zoo at George Washington Park in 1964. Th ...
. The new alignment diverts at White River Parkway W. Dr. and rejoins original route at the Indiana State Museum, the length of US 40 replaced is about .9 of a mile. The new alignment included the diversion to create White River State Park, and split into a pair of one-way streets: Washington Street carries westbound traffic and Maryland Street carries eastbound traffic. Originally US 40 was 2-way street all through town. In Indianapolis, the old highway passes several key landmarks, including
White River State Park White River State Park is an urban park in downtown Indianapolis, Indiana. Situated along the eastern and western banks of its namesake White River, the park covers . The park is home to numerous attractions, including the Eiteljorg Museum of ...
, the
Indianapolis Zoo The Indianapolis Zoo is a non-profit zoo, public aquarium, and botanical garden in Indianapolis, Indiana, United States. Incorporated in 1944, the Indianapolis Zoological Society established the first zoo at George Washington Park in 1964. Th ...
, the
Indiana State Museum The Indiana State Museum is a museum located in downtown Indianapolis, Indiana, United States. The museum houses exhibits on the science, art, culture, and history of Indiana from prehistoric times to the present day. History The original colle ...
, the
Eiteljorg Museum The Eiteljorg Museum of American Indians and Western Art is an art museum in downtown Indianapolis, Indiana, United States. The Eiteljorg houses an extensive collection of visual arts by indigenous peoples of the Americas as well as Western Ame ...
,
Victory Field Victory Field is a minor league ballpark in downtown Indianapolis, Indiana, United States. It is home to the Indianapolis Indians of the International League. History Victory Field opened on July 11, 1996, with the Indians falling to the Oklahom ...
, the
Lucas Oil Stadium Lucas Oil Stadium is a multi-purpose stadium in downtown Indianapolis, Indiana, United States. It replaced the RCA Dome as the home field of the National Football League (NFL)'s Indianapolis Colts and opened on August 16, 2008. The stadium was ...
, and the
Indiana Statehouse The Indiana Statehouse is the state capitol building of the U.S. state of Indiana. It houses the Indiana General Assembly, the office of the Governor of Indiana, the Indiana Supreme Court, and other state officials. The Statehouse is located in ...
.) Along the eastern edge of Indianapolis, US 40 leaves I-465 at Exit 46 and is once again routed onto Washington Street. East of Indianapolis, US 40 enters Cumberland where it takes the name National Road. Paralleling I-70 at a distance of about , US 40 continues eastward across Indiana, passing through such communities as Greenfield, Knightstown, Lewisville, Straughn,
Dublin Dublin (; , or ) is the capital and largest city of Ireland. On a bay at the mouth of the River Liffey, it is in the province of Leinster, bordered on the south by the Dublin Mountains, a part of the Wicklow Mountains range. At the 2016 ...
, Mount Auburn, and Cambridge City, where it is known by various local names including Washington Street, Main Street, and National Road. Note: Just east of Knightstown, cross the Big Blue River, on the right is part of the old National Road. This section is about 4.3 miles long and rejoins US 40 in Dunreith. US 40's last stop in Indiana is the city of
Richmond Richmond most often refers to: * Richmond, Virginia, the capital of Virginia, United States * Richmond, London, a part of London * Richmond, North Yorkshire, a town in England * Richmond, British Columbia, a city in Canada * Richmond, California, a ...
. In Richmond, it passes a statue known as ''
Madonna of the Trail ''Madonna of the Trail'' is a series of 12 identical monuments dedicated to the spirit of pioneer women in the United States. The monuments were commissioned by the National Society of Daughters of the American Revolution (NSDAR). They ...
'', one of a series of twelve statues across the U.S. that memorialize women pioneers who made the trek to settle the western U.S. In 1968, a section of US 40 (Main Street) in Richmond was destroyed by a massive gas explosion. This caused a section of Main Street to be closed to automobile traffic, and US 40 was rerouted along North A Street (westbound) and South A Street (eastbound). Near the Indiana/Ohio border, US 40 crosses I-70 at exit 156B before entering Ohio.


Ohio

US 40 enters
Ohio Ohio () is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Of the List of states and territories of the United States, fifty U.S. states, it is the List of U.S. states and territories by area, 34th-l ...
just to the south of New Paris. The road is always close to the newer I-70 eastward toward
Dayton Dayton () is the sixth-largest city in the U.S. state of Ohio and the county seat of Montgomery County. A small part of the city extends into Greene County. The 2020 U.S. census estimate put the city population at 137,644, while Greater Da ...
. In Vandalia, the road passes to the south of
Dayton International Airport Dayton International Airport (officially James M. Cox Dayton International Airport), formerly Dayton Municipal Airport and James M. Cox-Dayton Municipal Airport, is 10 miles north of downtown Dayton, in Montgomery County, Ohio, United States. ...
and crosses the Dixie Highway and
I-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 5, it is a major cross-country, north–south route, traveling from St ...
and the
Great Miami River The Great Miami River (also called the Miami River) (Shawnee: ''Msimiyamithiipi'') is a tributary of the Ohio River, approximately long,U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map , access ...
. The road never actually enters Dayton, instead skirting the northern suburbs on the way toward Springfield. The portion of US 40 between Medway-Carlisle Road (
Ohio State Route 571 State Route 571 (SR 571) is an east–west state highway in west-central Ohio, part of a statewide road transportation system. It indirectly connects the cities of Union City and Greenville with Springfield via a final on U.S. Route 40. Ro ...
/County Road 303) and Lammes Lane in Bethel Township, Clark County, is designated "Staff Sergeant Wesley Williams Memorial Highway", in honor of a 2005 Tecumseh High School graduate who died on December 10, 2012, while serving in the U.S. Army, from injuries suffered when enemy forces attacked his unit with an
improvised explosive device An improvised explosive device (IED) is a bomb constructed and deployed in ways other than in conventional military action. It may be constructed of conventional military explosives, such as an artillery shell, attached to a detonating mecha ...
in
Kandahar Province Kandahār ( ps, ; Kandahār, prs, ; ''Qandahār'') is one of the thirty-four provinces of Afghanistan, located in the southern part of the country, sharing a border with Pakistan, to the south. It is surrounded by Helmand in the west, Uruzga ...
,
Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bord ...
. The designated portion of road runs by the high school. In Springfield, US 40 is split between two one-way streets. North Street carries US 40 West and Columbia Street carries US 40 East. The route then shifts on to East Main Street before leaving town to the east, once again as National Road. I-70 crosses again at unincorporated Harmony. US 40 passes just north of
London London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-east England at the head of a estuary dow ...
where it intersects
Ohio State Route 56 State Route 56 (SR 56) is an east–west state highway in central Ohio. Its western terminus is at SR 29 near Mutual, and its eastern terminus is at SR 682 in Athens. Route description SR 56 travels in a generally northwest–southeast d ...
and
US 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, R ...
before heading into West Jefferson. In West Jefferson, US 40 is routed on Main Street. In the
Columbus Columbus is a Latinized version of the Italian surname "''Colombo''". It most commonly refers to: * Christopher Columbus (1451-1506), the Italian explorer * Columbus, Ohio, capital of the U.S. state of Ohio Columbus may also refer to: Places ...
metropolitan area, US 40 enters from the west as Broad Street. Among the sites along US 40 in Columbus are the
Ohio Statehouse The Ohio Statehouse is the state capitol building and seat of government for the U.S. state of Ohio. The Greek Revival building is located on Capitol Square in Downtown Columbus. The capitol houses the Ohio General Assembly, consisting of the H ...
, the
Columbus Museum of Art The Columbus Museum of Art (CMA) is an art museum in downtown Columbus, Ohio. Formed in 1878 as the Columbus Gallery of Fine Arts (its name until 1978), it was the first art museum to register its charter with the state of Ohio. The museum collect ...
, and
LeVeque Tower The LeVeque Tower is a 47-story skyscraper in Downtown Columbus, Ohio. At it was the tallest building in the city from its completion in 1927 to 1974, and remains the second-tallest today. Designed by C. Howard Crane, the Art Deco skyscraper ...
, the oldest skyscraper in Columbus. In
Bexley Bexley is an area of south-eastern Greater London, England and part of the London Borough of Bexley. It is sometimes known as Bexley Village or Old Bexley to differentiate the area from the wider borough. It is located east-southeast of Cha ...
, the route follows Main Street, using Drexel Avenue to get between Broad and Main. US 40 continues as Main Street through Reynoldsburg before leaving the Columbus area as National Road yet again. East of the Columbus metro area, US 40 parallels I-70 at a distance of about , passing through several small towns, including Kirkersville, and
Hebron Hebron ( ar, الخليل or ; he, חֶבְרוֹן ) is a State of Palestine, Palestinian. city in the southern West Bank, south of Jerusalem. Nestled in the Judaean Mountains, it lies Above mean sea level, above sea level. The second-lar ...
. In Zanesville, the road becomes Main Street, and at the center of town US 40 begins a concurrency with
US 22 U.S. Route 22 (US 22) is a west–east route and is one of the original United States highways of 1926, running from Cincinnati, Ohio, at US 27, US 42, US 127, and US 52 to Newark, New Jersey, at U.S. Route 1/9 in the Newark Airport Inter ...
that carries it to
Cambridge Cambridge ( ) is a university city and the county town in Cambridgeshire, England. It is located on the River Cam approximately north of London. As of the 2021 United Kingdom census, the population of Cambridge was 145,700. Cambridge beca ...
. US 40 crosses the
Muskingum River The Muskingum River (Shawnee: ') is a tributary of the Ohio River, approximately long, in southeastern Ohio in the United States. An important commercial route in the 19th century, it flows generally southward through the eastern hill country ...
in Zanesville on the famous Y-Bridge. Routes 22 and 40 enter Cambridge from the southwest along John Glenn Highway, and split in town; US 40 follows Wheeling Avenue. In Old Washington, US 40 joins I-70 at Exit 186. It leaves I-70 at exit 201 near
Morristown Morristown may refer to: Places Canada *Morristown, Nova Scotia (disambiguation) United States * Morristown, Arizona *Morristown, Indiana ** Morristown station (Indiana) *Morristown, Minnesota ** Morristown Township, Rice County, Minnesota *Morris ...
. The two roads cross paths several times before they both leave Ohio on a pair of bridges across the Ohio River at
Bridgeport Bridgeport is the List of municipalities in Connecticut, most populous city and a major port in the U.S. state of Connecticut. With a population of 148,654 in 2020, it is also the List of cities by population in New England, fifth-most populous ...
. The now-decommissioned
Ohio State Route 440 Ohio () is a state in the Midwestern region of the United States. Of the fifty U.S. states, it is the 34th-largest by area, and with a population of nearly 11.8 million, is the seventh-most populous and tenth-most densely populated. The sta ...
ran along old US 40 in places where US 40 had been shifted onto I-70.


West Virginia

US 40 is only long as it passes through West Virginia, mainly through Wheeling, where it briefly runs concurrent with both I-70 and US Route 250. It diverges from I-70 east of the
Fort Henry Bridge The Fort Henry Bridge is a crossing of the Ohio River main channel in Wheeling, West Virginia. The tied-arch bridge carries two lanes in each direction of Interstate 70 (I-70), U.S. Route 40 (US 40), and US 250. The bridge opened ...
and into the northern section on the downtown Wheeling area, where it meets with the
Wheeling Suspension Bridge The Wheeling Suspension Bridge is a suspension bridge spanning the main channel of the Ohio River at Wheeling, West Virginia. It was the largest suspension bridge in the world from 1849 until 1851. Charles Ellet Jr. (who also worked on the N ...
, which was the former link for the National Road. It then turns twice left and passes over I-70 and Wheeling Hill, past McColloch's Leap, and into the Wheeling suburbs. It intersects
WV Route 88 West Virginia Route 88 is a north–south state highway located within the Northern Panhandle of West Virginia. The southern terminus is at U.S. Route 250 in Limestone. The northern terminus is at West Virginia Route 27 five miles (8 km) eas ...
halfway through this leg of US 40, and the southbound leg of WV 88 runs concurrent with US 40 at this point until it reaches Elm Grove, where US 40 turns left and heads into Tridelphia and Valley Grove before reaching the Pennsylvania state line.


Pennsylvania

US 40 enters Pennsylvania at West Alexander. It closely parallels I-70 from West Virginia until it reaches
Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered o ...
where it follows Chestnut St, Jefferson Avenue and Maiden Street. In Washington, US 40 passes to the south of
Washington & Jefferson College Washington & Jefferson College (W&J College or W&J) is a private liberal arts college in Washington, Pennsylvania. The college traces its origin to three log cabin colleges in Washington County established by three Presbyterian missionaries to ...
. Following Maiden Street out of town, the road turns southeast toward the town of
California California is a state in the Western United States, located along the Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the most populous U.S. state and the 3rd largest by area. It is also the ...
. A short limited access highway in California and West Brownsville provides an approach to the
Lane Bane Bridge The Lane Bane Bridge is a truss bridge that carries vehicular traffic across the Monongahela River between Brownsville, Pennsylvania and West Brownsville, Pennsylvania. The high level bridge was completed in November 1962 and was originally desig ...
across the
Monongahela River The Monongahela River ( , )—often referred to locally as the Mon ()—is a U.S. Geological Survey. National Hydrography Dataset high-resolution flowline dataThe National Map accessed August 15, 2011 river on the Allegheny Plateau in north-c ...
. From here, the road continues southeast to Uniontown. US 40 bypasses Uniontown along a limited access highway that also carries
US 119 U.S. Route 119 (US 119) is a spur of US 19. It is a north–south route (on a northeast-southwest alignment) that was an original United States highway of 1926. It is Corridor G of the Appalachian Development Highway System (ADHS) east of US ...
. An old alignment through Uniontown is signed as "Business US 40." Southeast of Uniontown, travellers pass the
Fort Necessity National Battlefield Fort Necessity National Battlefield is a National Battlefield in Fayette County, Pennsylvania, United States, which preserves the site of the Battle of Fort Necessity. The battle, which took place on July 3, 1754, was an early battle of the F ...
. It follows Braddock Road southeast of Uniontown, crossing the Youghiogheny River Lake on a bridge completed in 2006. US 40 leaves Pennsylvania at Addison


Maryland

US 40 enters
Maryland Maryland ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; ...
from Pennsylvania near Grantsville in the western part of the state. Here, and through most of the state, it is known as National Pike. US 40 leaves National Pike shortly after entering Maryland from the northwest and merges with I-68 and
US 219 U.S. Route 219 (US 219) is a spur of US 19. It runs for from West Seneca, New York, at an interchange with Interstate 90 (I-90) to Rich Creek, Virginia, intersecting at US 460. US 219 is found (from north to south) in New York, Pennsylvania, Ma ...
at exit 14B. The old alignment of US 40, still known as National Pike, is signed through much of the western part of the state as either " Scenic US 40" or " Alternate US 40". US 219 leaves the three-way concurrency at exit 22, but US 40 and I-68 remain on the same pavement through Frostburg and Cumberland. East of Cumberland, the old National Pike (formerly US 40) carries the MD 144 designation. The I-68/US 40 roadway passes through a deep cut in
Sideling Hill Sideling Hill, also Side Long Hill, is a long, steep, narrow mountain ridge in the Ridge-and-Valley (or Allegheny Mountains) physiographic province of the Appalachian Mountains, located in Washington County in western Maryland and adjacent West ...
. Just to the east of the cut is the Sideling Hill Exhibit Center, a museum that highlights Western Maryland geology. At Hancock, where the state of Maryland narrows to less than two miles (3 km) wide, I-68 ends, and US 40 merges onto I-70 at exit 1. The two routes closely follow the course of the
Chesapeake and Ohio Canal The Chesapeake and Ohio Canal, abbreviated as the C&O Canal and occasionally called the "Grand Old Ditch," operated from 1831 until 1924 along the Potomac River between Washington, D.C. and Cumberland, Maryland. It replaced the Potomac Canal, wh ...
and the
Potomac River The Potomac River () drains the Mid-Atlantic (United States), Mid-Atlantic United States, flowing from the Potomac Highlands of West Virginia, Potomac Highlands into Chesapeake Bay. It is long,U.S. Geological Survey. National Hydrography Datas ...
for several miles before US 40 leaves the Interstate at exit 9. US 40 passes directly through the center of
Hagerstown Hagerstown is the name of several places in the United States of America: *Hagerstown, Indiana *Hagerstown, Maryland **Hagerstown Metropolitan Area *Hagerstown, Ohio Hagerstown is an extinct town in Preble County, in the U.S. state of Ohio Ohi ...
using Washington Avenue (eastbound) and Franklin Street (westbound). Heading southeast out of Hagerstown, US 40 diverges into two separate routes, US 40 and US 40 Alt. US 40 parallels I-70, its longtime travel partner, crossing it at exit 32 near Greenbrier State Park on the Baltimore National Pike alignment. US 40 Alt heads southeast on the Old National Pike alignment through Boonsboro, crossing
South Mountain South Mountain or South Mountains may refer to: Canada * South Mountain, a village in North Dundas, Ontario * South Mountain (Nova Scotia), a mountain range * South Mountain (band), a Canadian country music group United States Landforms * Sou ...
at
Turner's Gap Turner's Gap is a wind gap in the South Mountain Range of the Blue Ridge Mountains, located in Frederick County and Washington County, Maryland. The gap is traversed by U.S. Route 40 Alternate, the old National Pike. The Appalachian Trail a ...
. The two routes converge just west of Frederick. In
Frederick Frederick may refer to: People * Frederick (given name), the name Nobility Anhalt-Harzgerode * Frederick, Prince of Anhalt-Harzgerode (1613–1670) Austria * Frederick I, Duke of Austria (Babenberg), Duke of Austria from 1195 to 1198 * Frederi ...
, US 40 uses Patrick Street before merging onto the
US 15 U.S. Route 15 (US 15) is a -long United States highway, designated along South Carolina, North Carolina, Virginia, Maryland, Pennsylvania, and New York. The route is signed north–south, from U.S. Route 17 Alternate in Walterboro, South Caro ...
expressway for a short distance. It leaves US 15 and rejoins I-70 on the outskirts of Frederick. MD 144 once again takes over the old alignment of US 40. US 40 leaves I-70 for the final time upon entering the western suburbs of Baltimore, once again as Baltimore National Pike. The route passes through
Patapsco Valley State Park Patapsco Valley State Park is a Maryland state park extending along of the Patapsco River south and west of the city of Baltimore, Maryland. The park encompasses multiple developed areas on over acres of land, making it Maryland's largest state ...
north of
Ellicott City Ellicott City is an unincorporated community and census-designated place in, and the county seat of, Howard County, Maryland, United States. Part of the Baltimore metropolitan area, its population was 65,834 at the 2010 census, making it the mo ...
and enters the Baltimore city limits along Edmondson Avenue. East of
Gwynns Falls Leakin Park Gwynns Falls/Leakin Park is the largest woodland park in an East Coast city, constituting a contiguous area of . Envisioned as a "stream valley park" to protect Baltimore's watersheds like the Gwynns Falls from overdevelopment and to preserve ...
, US 40 becomes Franklin Street, and becomes an expressway (formerly I-170) for a short distance between Pulaski Street and Martin Luther King Jr. Boulevard. Through this area, an alignment called " Truck US 40" diverts larger vehicles onto an alternate route. US 40 passes through the
Mount Vernon Mount Vernon is an American landmark and former plantation of Founding Father, commander of the Continental Army in the Revolutionary War, and the first president of the United States George Washington and his wife, Martha. The estate is ...
neighborhood and a few blocks from Baltimore's Washington Monument. After crossing the
Jones Falls Expressway Interstate 83 (I-83) is an Interstate Highway in the Eastern United States. Its southern terminus is at a signalized intersection with Fayette Street in Baltimore, Maryland; its northern terminus is at I-81 near Harrisburg, Pennsylvania. Most ...
(Interstate 83, I-83), US 40 follows Orleans Street, and finally becomes the Pulaski Highway as it leaves Baltimore to the northeast. US 40, for the entire length of Pulaski Highway, closely parallels Interstate 95 in Maryland, I-95. Pulaski Highway passes through Gunpowder Falls State Park near Joppa, Maryland, Joppa and the Aberdeen Proving Ground. Between Havre de Grace, Maryland, Havre de Grace and Perryville, Maryland, Perryville it crosses the Susquehanna River on the Thomas J. Hatem Memorial Bridge. US 40 leaves Maryland in Elkton, Maryland, Elkton, crossing the border into Delaware.


Delaware

US 40 crosses
Delaware Delaware ( ) is a state in the Mid-Atlantic region of the United States, bordering Maryland to its south and west; Pennsylvania to its north; and New Jersey and the Atlantic Ocean to its east. The state takes its name from the adjacen ...
for about . Entering the state from Maryland in Glasgow, Delaware, Glasgow, it continues along the Pulaski Highway. Much roadside commercial development slows traffic, as there are many traffic lights along the route. US 40 has an interchange with Delaware Route 1 in the community of Bear, Delaware, Bear before merging with U.S. Route 13, US 13 (Dupont Highway) in State Road, Delaware, State Road. The concurrent routes turn north, pass the Wilmington Airport (Delaware), Wilmington Airport and US 40 splits to join Interstate 295 (Delaware-New Jersey), I-295 near Wilmington Manor, Delaware, Wilmington Manor. US 40, along with I-295, uses the Delaware Memorial Bridge to cross the Delaware River into New Jersey.


New Jersey

US 40 enters
New Jersey New Jersey is a U.S. state, state in the Mid-Atlantic States, Mid-Atlantic and Northeastern United States, Northeastern regions of the United States. It is bordered on the north and east by the state of New York (state), New York; on the ea ...
in Deepwater, New Jersey along with I-295. US 40 briefly joins the New Jersey Turnpike, and exits to the north of the Toll house, toll booths. The route follows Wiley Road, parallel to the Turnpike, before joining Harding Highway in Carneys Point Township, New Jersey, Carneys Point. US 40 is known as the Harding Highway through most of South Jersey. Northeast of it convergence with US 40, Harding Highway carries the New Jersey Route 48, Route 48 designation, although this was once part of US 40 as well. US 40 enters the borough (New Jersey), borough of Woodstown, New Jersey, Woodstown as a concurrency with New Jersey Route 45, Route 45 along West Avenue; it leaves town heading southeast. In Upper Pittsgrove Township, New Jersey, Upper Pittsgrove Township, the road changes names to the Pole Tavern-Elmer Road. Passing through Elmer, New Jersey, Elmer it becomes Chestnut Street and then the Elmer-Malaga Road. In Malaga, New Jersey, Malaga, it runs concurrent with New Jersey Route 47, Route 47 (Delsea Drive). The route bypasses the city of Vineland, New Jersey, Vineland to the northeast, and becomes Cape May Avenue in Hamilton Township, Atlantic County, New Jersey, Hamilton Township, where it crosses New Jersey Route 50, Route 50 in Mays Landing, New Jersey, Mays Landing. US 40 merges with U.S. Route 322 in New Jersey, US 322 and the
Black Horse Pike The Black Horse Pike is a designation used for a number of different roadways that had been part of a historic route connecting the Camden area to the area of Atlantic City, New Jersey. Roadways now bearing the Black Horse Pike designation include ...
in McKee City, New Jersey, McKee City. The two routes enter Atlantic City, New Jersey, Atlantic City along Albany Avenue and pass the Bader Field, Atlantic City Airport. US 40 and US 322 both reach their eastern terminus at the intersection of Albany Avenue and Ventnor Avenue.


History


Early roads

US 40's history can be traced back several centuries. Several well established Native American footpaths, including Nemacolin's Path and Mingo Path in the Maryland-Pennsylvania area, followed similar alignments to US 40. Early American colonists established roads, some following the established Native American paths, that would later serve as US 40. These included a segment of post road between Wilmington, Delaware, and Baltimore, Maryland. In 1755, during the French and Indian Wars, Edward Braddock, General Edward Braddock blazed a trail en route to capture Fort Duquesne (modern Pittsburgh, Pennsylvania). US 40 closely follows this route between
Cumberland, Maryland Cumberland is a U.S. city in and the county seat of Allegany County, Maryland. It is the primary city of the Cumberland, MD-WV Metropolitan Statistical Area. At the 2020 census, the city had a population of 19,076. Located on the Potomac River, ...
and Uniontown, Pennsylvania. Early in the history of the U.S., the State of Maryland established a network of Toll road, turnpikes for long-distance travel. Three of these would later serve as part of US 40: the Baltimore and Havre de Grace, Maryland, Havre de Grace Turnpike, the Baltimore and
Frederick Frederick may refer to: People * Frederick (given name), the name Nobility Anhalt-Harzgerode * Frederick, Prince of Anhalt-Harzgerode (1613–1670) Austria * Frederick I, Duke of Austria (Babenberg), Duke of Austria from 1195 to 1198 * Frederi ...
Turnpike, and Bank Road. Colonel Ebenezer Zane (for whom Zanesville, Ohio was named) blazed some of the first trails across the Ohio wilderness in the last years of the 18th century.
Zane's Trace Zane's Trace is a frontier road constructed under the direction of Col. Ebenezer Zane through the Northwest Territory of the United States, in what is now the state of Ohio. Many portions were based on traditional Native American trails. Con ...
, as his road was called, stretched from Wheeling, West Virginia, to Maysville, Kentucky. With some minor alignment differences, US 40 closely matches the segment from Wheeling to Zanesville. Between the cities of Lawrence and Topeka, Kansas, US 40 follows the path of the
Oregon Trail The Oregon Trail was a east–west, large-wheeled wagon route and emigrant trail in the United States that connected the Missouri River to valleys in Oregon. The eastern part of the Oregon Trail spanned part of what is now the state of Kans ...
. During the 19th century, the Oregon Trail served as a major thoroughfare for people emigrating to the Pacific Northwest. Between 1850 and 1852, some 65,000–70,000 people traveled the trail.


National Road

In 1806, Thomas Jefferson signed into law an act of Congress establishing a
National Road The National Road (also known as the Cumberland Road) was the first major improved highway in the United States built by the Federal Government of the United States, federal government. Built between 1811 and 1837, the road connected the Pot ...
to connect the waters of the Atlantic Ocean with the Ohio River. The law mentions Baltimore as its eastern terminus; but the route used established Maryland turnpikes east of Cumberland. A new road was constructed from Cumberland to Wheeling, West Virginia, and later extended across the states of
Ohio Ohio () is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Of the List of states and territories of the United States, fifty U.S. states, it is the List of U.S. states and territories by area, 34th-l ...
,
Indiana Indiana () is a U.S. state in the Midwestern United States. It is the 38th-largest by area and the 17th-most populous of the 50 States. Its capital and largest city is Indianapolis. Indiana was admitted to the United States as the 19th ...
, and
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Roc ...
. Segments of the National Road used Braddock's Road and Zane's Trace. Plans to extend the road to
Missouri Missouri is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it is bordered by eight states (tied for the most with Tennessee ...
were never completed. The farthest western terminus for the National Road was the Old State House in
Vandalia, Illinois Vandalia is a city in and the county seat of Fayette County, Illinois, United States. At the 2020 Census, the population was 7,458. Vandalia is northeast of St. Louis, on the Kaskaskia River. It served as the state capital of Illinois ...
. The National Road was absorbed into the National Old Trails Ocean-to-Ocean highway, a route from New York, New York, to Los Angeles, California in the early 20th century. The National Road became US 40 in the original 1925 plan for U.S. Routes. To this day, many places still name US 40 "National Road", even where the alignment was moved from the original road. Besides US 40, much of the National Road is paralleled by segments of Interstate 68, Interstates 68 and Interstate 70, 70.


Victory Highway

Most of the western section of US 40 follows the former route of
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 ...
, a road that once linked Kansas City to San Francisco. The road was named as a memorial to fallen World War I veterans. Other than two sections (one in California and one in Kansas/Colorado) most of the original route of US 40 west of Kansas City used Victory Highway. According to a 1926 guide published about the Victory Highway, it was the fastest route between San Francisco and Salt Lake City, allowing travellers to complete the trip "comfortably and in high gear in from 3 to 4 days." Controversy over the routing of US 40 over the Victory Highway led to a "divided route", with US 40S following the Victory Highway and US 40N taking a more northerly route.


Evolution

US 40 was one of the original 1926 U.S. Highways. The route was a cross-country, east–west route, as most routes with a "0" number were defined. In 1926, the road had a total mileage of . Though the eastern terminus was planned for State Road, Delaware, by 1927 it was moved to
Atlantic City, New Jersey Atlantic City, often known by its initials A.C., is a coastal resort city in Atlantic County, New Jersey, United States. The city is known for its casinos, Boardwalk (entertainment district), boardwalk, and beaches. In 2020 United States censu ...
. The western terminus was San Francisco, California, San Francisco via an auto ferry across San Francisco Bay from the Berkeley Pier in Berkeley, California. Upon completion of the San Francisco–Oakland Bay Bridge, US 40 was re-routed over the bridge, bypassing the ferry pier. Early alignments of the road featured ferries at both ends. To cross the Delaware River, ferries were used, originally from Wilmington, Delaware (1927–1929) and later from
New Castle, Delaware New Castle is a city in New Castle County, Delaware, United States. The city is located six miles (10 km) south of Wilmington and is situated on the Delaware River. As of the 2010 census, the city's population was 5,285. History New Cast ...
(1929–1951). In 1951, the opening of the Delaware Memorial Bridge replaced the ferry service and carried US 40 across the Delaware River. From 1926 to 1935 the route split in Manhattan, Kansas, into "40N" and "40S" routes; the two routes met again in Limon, Colorado. The "40S" route continued on to Grand Junction, Colorado. In 1935, the split routes were eliminated. US 40N between Manhattan and Limon and then US 40S from Limon to Grand Junction was replaced by U.S. Route 24, the remainder was renumbered as simply US 40. New alignments for the road were designated in
Maryland Maryland ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; ...
in 1948 and in
Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to its ...
in 1950. California's segment of the highway was decommissioned in 1964. By 1966, the western terminus moved to Reno, Nevada. The road shortened again in 1975, to its current western end at Park City, Utah, Silver Creek Junction, Utah. In 1998, the California segment was given a sort of rebirth with the designation of Historic Route 40 through that state. Further realignments occurred in
Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to its ...
where the highway was re-routed for the Jordanelle Reservoir in the mid 1990s, and
Kansas City, Kansas Kansas City, abbreviated as "KCK", is the third-largest city in the U.S. state of Kansas, and the county seat of Wyandotte County. It is an inner suburb of the older and more populous Kansas City, Missouri, after which it is named. As of ...
, in 1999 to make way for the Kansas Speedway. On December 1, 2008, a further realignment in Kansas City rerouted US 40 away from State Avenue and the Turner Diagonal and onto K-7 and Interstate 70. "In 1998 [Eddie Lange] persuaded the California legislature to designate Route 40 between Reno and San Francisco as Historic Route 40." Together with Trish Gray, the duo designed the signs and a program where local businesses could donate funds to have a sign erected near their business along the route. The signs can now be found throughout the California route and is a popular route for motorcycle clubs and other travel enthusiasts.


Historical route


California

The former route of US 40 in California generally runs parallel to modern Interstate 80. In Contra Costa County it is San Pablo Avenue, now signed as California State Route 123, State Route 123 (SR 123). Portions of Historic Route 40 exist in American Canyon, California, American Canyon, Vallejo, California, Vallejo, along 5th Street, Alameda Street and Broadway. In Cordelia, California, Cordelia and Suisun City, California, Suisun City, the original route is along Cordelia Road. It is also signed as a historic route. The original route is preserved as Texas Street in Fairfield, California, Fairfield. In Vacaville, California, Vacaville the highway is preserved as Monte Vista Avenue. In Davis, California, Davis, the highway is now Russell Boulevard, the main street through downtown Davis. In Sacramento, California, Sacramento the highway followed the routes of modern Capitol Avenue, California State Route 160, SR 160 and Auburn Boulevard. Between Roseville, California, Roseville and Newcastle, California, Newcastle, the highway is known as Taylor Road and Pacific Street through Rocklin, California, Rocklin. Through the Sierra Nevada (U.S.), Sierra Nevada many portions are still drivable, crossing I-80. Portions still drivable include Applegate Road in Applegate, California, Applegate, Hampshire Rocks Road in a rural area near Cisco, California, Cisco, and Donner Pass Road over Donner Pass and into Truckee, California, Truckee. Between Truckee and the Nevada state line, the former route of US 40 is mostly visible from the freeway, but not drivable as a contiguous route. Portions accessible include Glenshire Drive, Hirshdale Road and Floriston Way. From 1954 to 1964, an alternate route US 40 was available especially during winter to avoid Donner Pass. Donner Pass, elevation , might be closed in winter. This alternate route used Beckwourth Pass, elevation of . Since Beckwourth Pass was nearly lower than Donner Pass, it could be kept open longer. Alt. US 40 parted the main track of US 40 near Davis, California, Davis and ran north along what was then signed as U.S. Route 99W (northern California), US 99W into Woodland, California, Woodland. From Woodland, Alt. US 40 ran north along California State Route 24, SR 24 through Knights Landing, California, Knights Landing and Robbins, California, Robbins into Yuba City, California, Yuba City. Most of the section from Woodland to Yuba City is now signed as California State Route 113, SR 113. From Yuba City, Alt. US 40 ran east through Marysville, California, Marysville, then north through Oroville, California, Oroville. Continuing north and northeast, Alt. US 40 reached Paxton, California, Paxton, then turned south and southeast to Quincy, California, Quincy and Beckwourth, California, Beckwourth before crossing. East of Beckwourth Pass, Alt. US 40 descended to meet U.S. Route 395 in California, US 395 at what is now Hallelujah Junction, California, Hallelujah Junction, and followed US 395 into Reno, Nevada, Reno to meet mainline US 40. The section from Marysville to US 395 was then still an extension of SR 24, but is now signed as California State Route 70, SR 70, although much of the old highway was moved further west before Lake Oroville was dammed and flooded in 1968.


Nevada

In Nevada, US 40 was also directly replaced by I-80. All of the I-80 business loops use the historical route of US 40. In the Truckee Meadows the route is still drivable as Nevada State Route 425, 3rd street in Verdi, Nevada, Verdi and Nevada State Route 647, 4th street in Reno, Nevada, Reno and Nevada State Route 647, Victorian Ave in Sparks, Nevada, Sparks. In rural Nevada the highway forms the business loops for Nevada State Route 427, Wadsworth, Nevada State Route 427, Fernley, Nevada State Route 396, Lovelock, Winnemucca, Nevada State Route 304, Battle Mountain, Nevada State Route 221, Carlin, Nevada State Route 535, Elko, and Interstate 80 Business (West Wendover, Nevada – Wendover, Utah), West Wendover. The route and its former alignments can be seen (and some still driven) all along the routing of I-80. Much of the old right-of-way of old US 40 has been either demolished or left to natural degradation.


Utah

In Wendover, Utah, Wendover the former route of US 40 is signed as Utah State Route 58, SR-58 and runs along the Wendover Cut-off, south of the freeway, across the Bonneville Salt Flats. The route re-emerges from the shadow of I-80 as Utah State Route 138, SR-138 through Grantsville, Utah, Grantsville and Tooele, Utah, Tooele. Interstate 80 was directly paved over the former route of US 40 through Parley's Canyon and over Parley's Summit, with very little of the original pavement remaining through the mountains. East of the Wasatch Mountains is the modern terminus of US 40. Two routes existed through Salt Lake City. West of Temple Square US 40 was consistently routed on North Temple Street. East of Temple Square US 40 had two alignments, originally departing Temple Square south along State Street (Salt Lake County), State Street concurrent with U.S. Route 91, US 91 and U.S. Route 89 in Utah, US 89 to Utah State Route 201, 2100 south. The road then used 2100 South and Parley's Way, towards Parley's Canyon. Later US 40 was moved to Foothill Drive, along modern Utah State Route 186, SR-186, with the 2100 south routing becoming US 40ALT. The two routes converged at the mouth of Parley's Canyon.


Major intersections

;Utah : in Silver Creek Junction, Utah, Silver Creek Junction. US 40/US 189 have a hidden concurrency to Heber City. : in
Duchesne Duchesne is a surname. Notable people with the surname include: *Joseph Duchesne (c. 1544–1609), French physician and chemist. Physician-in-ordinary to King Henry IV *André Duchesne (1584–1640), French historian *François Duchesne (1616–16 ...
. The highways travel concurrently to Vernal. ;Colorado : in Granby : east of Empire, Colorado, Empire. The highways travel concurrently to east of Idaho Springs, Colorado, Idaho Springs, and intersect again in Golden, Colorado, Golden. There are numerous intersections and overlaps of US 40 and I-70 between here and
Maryland Maryland ( ) is a U.S. state, state in the Mid-Atlantic (United States), Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; ...
. : in
Denver Denver () is a consolidated city and county, the capital, and most populous city of the U.S. state of Colorado. Its population was 715,522 at the 2020 census, a 19.22% increase since 2010. It is the 19th-most populous city in the United ...
. The highways travel concurrently to east of
Kit Carson Christopher Houston Carson (December 24, 1809 – May 23, 1868) was an American frontiersman. He was a fur trapper, wilderness guide, Indian agent, and U.S. Army officer. He became a frontier legend in his own lifetime by biographies and ...
. : in Denver : in
Aurora An aurora (plural: auroras or aurorae), also commonly known as the polar lights, is a natural light display in Earth's sky, predominantly seen in high-latitude regions (around the Arctic and Antarctic). Auroras display dynamic patterns of bri ...
: in Aurora. I-70/US 40 travels concurrently to Limon. US 36/US 40 travel concurrently to Byers, Colorado, Byers. : west-northwest of Limon. The highways travel concurrently to east-southeast of Limon. : in
Cheyenne Wells Cheyenne Wells is the Statutory Town that is the county seat and the most populous municipality of Cheyenne County, Colorado, United States. The town population was 758 at the 2020 United States Census. History The community was named for th ...
. The highways travel concurrently to east of Cheyenne Wells. ;Kansas : in
Oakley Oakley may refer to: Places Antarctica *Oakley Glacier United Kingdom * Oakley, Bedfordshire, England *Oakley, Buckinghamshire, England *Oakley, Dorset, England *Oakley, Fife, Scotland * Oakley, Gloucestershire, England * Oakley, Hampshire, En ...
. The highways travel concurrently through the city. : in WaKeeney, Kansas, WaKeeney : in Hays, Kansas, Hays : south of Russell, Kansas, Russell : northwest of Salina : in Junction City, Kansas, Junction City : in Topeka. US 40/US 75 travels concurrently through the city. : in Lawrence. The highways travel concurrently through the city. : in Lawrence. US 24/US 40 travels concurrently to Kansas City, Missouri. : on the Kansas City, Kansas, Kansas City–Bonner Springs, Kansas, Bonner Springs city line. The highways travel concurrently into Bonner Springs proper. : in Bonner Springs. I-70/US 40 travels concurrently to Kansas City, Missouri. : on the Edwardsville, Kansas, Edwardsville–Kansas City city line : in Kansas City : in Kansas City. The highways travel concurrently through the city. : in Kansas City : in Kansas City. US 40/US 169 travels concurrently to Kansas City, Missouri. ;Missouri : in Kansas City. The highways travel concurrently through the city. : in Kansas City. US 40/US 71 travels concurrently through Kansas City. : in Independence : south of Marshall, Missouri, Marshall : in Columbia : in Kingdom City, Missouri, Kingdom City : in Wentzville. I-64/US 40 travels concurrently to East St. Louis, Illinois. US 40/US 61 travels concurrently to the Frontenac, Missouri, Frontenac–Ladue, Missouri, Ladue city line. : in Town and Country, Missouri, Town and Country : on the Frontenac–Ladue city line : in Richmond Heights, Missouri, Richmond Heights : in
St. Louis St. Louis () is the second-largest city in Missouri, United States. It sits near the confluence of the Mississippi and the Missouri Rivers. In 2020, the city proper had a population of 301,578, while the bi-state metropolitan area, which e ...
. I-55/US 40 travels concurrently to Troy, Illinois. ;Illinois : in East St. Louis. I-70/US 40 travel concurrently to Troy. : in Collinsville, Illinois, Collinsville : in Vandalia. The highways travel concurrently to east of Vandalia. : in Effingham. The highways travel concurrently through the city. ;Indiana : in Terre Haute : north-northwest of Cloverdale, Indiana, Cloverdale : in Indianapolis. The highways travel concurrently through the city. : in Indianapolis. The highways travel concurrently through the city. : in Indianapolis : in Indianapolis. US 40/US 421 travels concurrently through the city. : in Indianapolis. The highways travel concurrently through the city. : in
Richmond Richmond most often refers to: * Richmond, Virginia, the capital of Virginia, United States * Richmond, London, a part of London * Richmond, North Yorkshire, a town in England * Richmond, British Columbia, a city in Canada * Richmond, California, a ...
;Indiana–Ohio line : in Richmond, IN, and Jefferson Township, Preble County, Ohio, Jefferson Township, OH ;Ohio : in Monroe Township, Preble County, Ohio, Monroe Township : in Vandalia : west of Springfield : in Lafayette, Madison County, Ohio, Lafayette : in Lincoln Village, Ohio, Lincoln Village : in Columbus. US 40/US 62 travels concurrently through the city. : in Columbus : in Columbus : in Zanesville. The highways travel concurrently to
Cambridge Cambridge ( ) is a university city and the county town in Cambridgeshire, England. It is located on the River Cam approximately north of London. As of the 2021 United Kingdom census, the population of Cambridge was 145,700. Cambridge beca ...
. : in Cambridge Township : in
Bridgeport Bridgeport is the List of municipalities in Connecticut, most populous city and a major port in the U.S. state of Connecticut. With a population of 148,654 in 2020, it is also the List of cities by population in New England, fifth-most populous ...
. The highways travel concurrently to Wheeling, West Virginia. ;West Virginia : in Wheeling ;Pennsylvania : in
Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered o ...
. The highways travel concurrently to South Strabane Township, Washington County, Pennsylvania, South Strabane Township. : in Amwell Township, Washington County, Pennsylvania, Amwell Township : in Uniontown. The highways travel concurrently to South Union Township, Fayette County, Pennsylvania, South Union Township. ;Maryland : in Keysers Ridge, Maryland, Keysers Ridge. I-68/US 40 travels concurrently to Hancock. US 40/US 219 travels concurrently to east-southeast of Grantsville. : in Cumberland. The highways travel concurrently through the city. : north-northwest of Hancock. I-70/US 40 travels concurrently to Indian Springs, Maryland, Indian Springs. US 40/US 522 travels concurrently to Hancock. : in
Hagerstown Hagerstown is the name of several places in the United States of America: *Hagerstown, Indiana *Hagerstown, Maryland **Hagerstown Metropolitan Area *Hagerstown, Ohio Hagerstown is an extinct town in Preble County, in the U.S. state of Ohio Ohi ...
: in Hagerstown : in
Frederick Frederick may refer to: People * Frederick (given name), the name Nobility Anhalt-Harzgerode * Frederick, Prince of Anhalt-Harzgerode (1613–1670) Austria * Frederick I, Duke of Austria (Babenberg), Duke of Austria from 1195 to 1198 * Frederi ...
. The highways travel concurrently through the city. : in Frederick : in Frederick. I-70/US 40 travels concurrently to West Friendship, Maryland, West Friendship. Between
Colorado Colorado (, other variants) is a state in the Mountain states, Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the wes ...
and here, I-70 has numerous intersections and overlaps with US 40. : in
Ellicott City Ellicott City is an unincorporated community and census-designated place in, and the county seat of, Howard County, Maryland, United States. Part of the Baltimore metropolitan area, its population was 65,834 at the 2010 census, making it the mo ...
: in Catonsville, Maryland, Catonsville : in
Baltimore Baltimore ( , locally: or ) is the List of municipalities in Maryland, most populous city in the U.S. state of Maryland, fourth most populous city in the Mid-Atlantic (United States), Mid-Atlantic, and List of United States cities by popula ...
: in Baltimore : in Rosedale, Maryland, Rosedale ;Delaware : in State Road, Delaware, State Road. The highways travel concurrently to Wilmington Manor, Delaware, Wilmington Manor. : in Wilmington Manor : in Wilmington Manor. I-295/US 40 travels concurrently to Pennsville Township, New Jersey. ;New Jersey : in Pennsville Township : in Hamilton Township, Atlantic County, New Jersey, Hamilton Township. The highways travel concurrently to Atlantic City, New Jersey, Atlantic City. : in Pleasantville, New Jersey, Pleasantville : Atlantic Avenue / Pacific Avenue in Atlantic City


See also

*
National Road The National Road (also known as the Cumberland Road) was the first major improved highway in the United States built by the Federal Government of the United States, federal government. Built between 1811 and 1837, the road connected the Pot ...
* All-American Road * ''U.S. Route 140'' (decommissioned 1980) * ''U.S. Route 240'' (decommissioned 1971) * U.S. Route 340


Notes


References


Further reading

* This is an updating of (There was also a 1973 reprint, the "First Greenwood Reprinting".)


External links


Endpoints of U.S. Highway 40
* {{Authority control U.S. Route 40, United States Numbered Highway System, 40 U.S. Highways in California, 40 U.S. Highways in Nevada, 40 U.S. Highways in Missouri, 40 U.S. Highways in Indiana, 40 U.S. Highways in Ohio, 40 Interstate 70 Interstate 80 Lincoln Highway, U.S. Route 040 Roads in Greater St. Louis Transportation in Cumberland, MD-WV-PA 1926 establishments in the United States