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Before the U.S. Highway System
A remnant of an original state right-of-way marker serves as a reminder of the early days of the road's construction. This was part of the 1927 construction of US 66.
In 1857, Lt.
Edward Fitzgerald Beale, a Naval officer in the service of the
U.S. Army Corps of Topographical Engineers, was ordered by the
War Department to build a government-funded wagon road along the 35th Parallel. His secondary orders were to test the feasibility of the use of
camels as pack animals in the southwestern desert. This road became part of US 66.
Parts of the original Route 66 from 1913, prior to its official naming and commissioning, can still be seen north of the Cajon Pass. The paved road becomes a dirt road, south of Cajon, which was also the original Route 66.
Before a nationwide network of numbered highways was adopted by the states, named
auto trails were marked by private organizations. The route that would become US 66 was covered by three highways. The Lone Star Route passed through
St. Louis on its way from
Cameron, Louisiana, though US 66 would take a shorter route through
Bloomington rather than
Peoria. The transcontinental
National Old Trails Road led via St. Louis to
Los Angeles, but was not followed until
New Mexico; instead US 66 used one of the main routes of the
Ozark Trails system,
 which ended at the National Old Trails Road just south of
Las Vegas, New Mexico. Again, a shorter route was taken, here following the Postal Highway between
Oklahoma City and
Amarillo. Finally, the National Old Trails Road became the rest of the route to Los Angeles.
While legislation for public highways first appeared in 1916, with revisions in 1921, it was not until Congress enacted an even more comprehensive version of the act in 1925 that the government executed its plan for national highway construction. The original inspiration for a roadway between Chicago and Los Angeles was planned by entrepreneurs
Cyrus Avery of
Tulsa, Oklahoma, and John Woodruff of
Springfield, Missouri. The pair lobbied the
American Association of State Highway Officials (AASHO) for the creation of a route following the 1925 plans.
From the outset, public road planners intended US 66 to connect the main streets of rural and urban communities along its course for the most practical of reasons: most small towns had no prior access to a major national thoroughfare.
Birthplace and rise of US 66
The route sign from 1926 to 1948
The numerical designation 66 was assigned to the Chicago-to-Los Angeles route on April 30, 1926, in
Springfield, Missouri. A placard in Park Central Square was dedicated to the city by the Route 66 Association of Missouri,
 and traces of the "Mother Road" are still visible in downtown Springfield along Kearney Street, Glenstone Avenue, College, and St. Louis streets and on
Route 266 to
Championed by Avery when the first talks about a national highway system began, US 66 was first signed into law in 1927 as one of the original
U.S. Highways, although it was not completely paved until 1938. Avery was adamant that the highway have a round number and had proposed number 60 to identify it. A controversy erupted over the number 60, largely from delegates from
Kentucky who wanted a
Virginia Beach–Los Angeles highway to be
US 60 and
US 62 between Chicago and Springfield, Missouri.
 Arguments and counterarguments continued throughout February, including a proposal to split the proposed route through Kentucky into Route 60 North (to Chicago) and Route 60 South (to
Newport News). The final conclusion was to have US 60 run between Virginia Beach, Virginia, and Springfield, Missouri, and the Chicago–
L.A. route be US 62.
 Avery and highway engineer John Page settled on "66," which was unassigned, because he thought the double-digit number would be easy to remember as well as pleasant to say and hear. Both Avery and Page also appreciated the number 66's use in
numerology as a master number bringing material pleasure and success.
The state of Missouri released its 1926 state highway map with the highway labeled as US 60.
After the new federal highway system was officially created, Cyrus Avery called for the establishment of the
U.S. Highway 66 Association to promote the complete paving of the highway from end to end and to promote travel down the highway. In 1927, in Tulsa, the association was officially established with John T. Woodruff of Springfield, Missouri, elected the first president. In 1928, the association made its first attempt at publicity, the "
Bunion Derby," a footrace from Los Angeles to
New York City, of which the path from Los Angeles to Chicago would be on US 66.
 The publicity worked: several dignitaries, including
Will Rogers, greeted the runners at certain points on the route. The race ended in
Madison Square Garden, where the $25,000 first prize (equal to $356,298 in 2017) was awarded to
Andy Hartley Payne, a Cherokee runner from Oklahoma. The
U.S. Highway 66 Association also placed its first advertisement in the July 16, 1932, issue of the
Saturday Evening Post. The ad invited Americans to take US 66 to the
1932 Summer Olympics in Los Angeles. A U.S. Highway 66 Association office in Oklahoma received hundreds of requests for information after the ad was published. The association went on to serve as a voice for businesses along the highway until it disbanded in 1976.
Traffic grew on the highway because of the geography through which it passed. Much of the highway was essentially flat and this made the highway a popular
truck route. The
Dust Bowl of the 1930s saw many farming families, mainly from Oklahoma, Arkansas, Kansas, and Texas, heading west for agricultural jobs in California. US 66 became the main road of travel for these people, often derogatorily called "
Okies" or "Arkies." During the Depression, it gave some relief to communities located on the highway. The route passed through numerous small towns and, with the growing traffic on the highway, helped create the rise of
mom-and-pop businesses, such as
motor courts, all readily accessible to passing
Much of the early highway, like all the other early highways, was gravel or graded dirt. Due to the efforts of the U.S. Highway 66 Association, US 66 became the first highway to be completely paved in 1938. Several places were dangerous: more than one part of the highway was nicknamed "Bloody 66" and gradually work was done to realign these segments to remove dangerous curves. However, one section through the
Black Mountains outside
Oatman, Arizona, was fraught with
hairpin turns and was the steepest along the entire route, so much so that some early travelers, too frightened at the prospect of driving such a potentially dangerous road, hired locals to navigate the winding grade. The section remained as US 66 until 1953 and is still open to traffic today as the Oatman Highway. Despite such hazards in some areas, US 66 continued to be a popular route.
Notable buildings include the
U-Drop Inn, constructed in 1936 in
Wheeler County east of Amarillo, Texas, listed on the
National Register of Historic Places.
 A restored Magnolia fuel station is also located in Shamrock as well as
Oldham County, west of Amarillo.
World War II, more migration west occurred because of war-related industries in California. US 66, already popular and fully paved, became one of the main routes and also served for moving military equipment.
Fort Leonard Wood in Missouri was located near the highway, which was locally upgraded quickly to a divided highway to help with military traffic. When
Richard Feynman was working on the
Manhattan Project at
Los Alamos, he used to travel nearly 100 miles (160 km) to visit his wife, who was dying of
tuberculosis, in a
sanatorium located on US 66 in
In the 1950s, US 66 became the main highway for vacationers heading to Los Angeles. The road passed through the
Painted Desert and near the
Meteor Crater in Arizona was another popular stop. This sharp increase in tourism in turn gave rise to a burgeoning trade in all manner of roadside attractions, including
frozen custard stands,
Indian curio shops, and reptile farms.
Meramec Caverns near
St. Louis, began advertising on barns, billing itself as the "
Jesse James hideout." The
Big Texan advertised a free 72-ounce (2.0 kg) steak dinner to anyone who could consume the entire meal in one hour. It also marked the birth of the
Red's Giant Hamburg in
Springfield, Missouri, site of the first
drive-through restaurant, and the first
San Bernardino, California. Changes like these to the landscape further cemented 66's reputation as a near-perfect microcosm of the culture of America, now linked by the automobile.
Changes in routing
Many sections of US 66 underwent major realignments.
In 1930, between the Illinois cities of
East St. Louis, US 66 was shifted farther east to what is now roughly
Interstate 55 (I-55). The original alignment followed the current
Illinois Route 4 (IL 4).
From downtown St. Louis to
Gray Summit, Missouri, US 66 originally went down Market Street and Manchester Road, which is largely
Route 100. In 1932, this route was changed and the original alignment never viewed as anything more than temporary. The planned route was down Watson Road, which is now
Route 366 but Watson Road had not been completed yet.
In Oklahoma, from west of
El Reno to
Bridgeport, US 66 turned north to
Calumet and then west to
Geary, then southwest across the South
Canadian River over a
suspension toll bridge into Bridgeport. In 1933, a straighter cut-off route was completed from west of El Reno to one mile (1.6 km) south of Bridgeport, crossing over a 38-span steel
pony truss bridge over the South Canadian River, bypassing Calumet and Geary by several miles.
From west of
Santa Rosa, New Mexico, to north of
Los Lunas, New Mexico, the road originally turned north from current I-40 along much of what is now US 84 to near
Las Vegas, New Mexico, followed (roughly)
decertified US 85 through
Santa Fe and Albuquerque to Los Lunas and then turned northwest along the present
New Mexico State Road 6 (NM 6) alignment to a point near Laguna. In 1937, a straight-line route was completed from west of Santa Rosa through Moriarty and east–west through Albuquerque and west to Laguna. This newer routing saved travelers as much as four hours of travel through New Mexico. According to legend, the rerouting was done at the behest of Democratic Governor
Arthur T. Hannett to punish the Republican
Santa Fe Ring, which had long dominated New Mexico out of Santa Fe.
In 1940, the first freeway in Los Angeles was incorporated into US 66; this was the
Arroyo Seco Parkway, later known as the
Pasadena Freeway; now again known as Arroyo Seco Parkway.
In 1953, the Oatman Highway through the Black Mountains was completely bypassed by a new route between
Kingman, Arizona, and
 by the 1960s,
Oatman, Arizona, was virtually abandoned as a
Since the 1950s, as Interstates were being constructed, sections of US 66 not only saw the traffic drain to them, but often the route number itself was moved to the faster means of travel. In some cases, such as to the east of St. Louis, this was done as soon as the Interstate was finished to the next exit. The displacement of US 66 signage to the new freeways, combined with restrictions in the 1965
Highway Beautification Act that often denied merchants on the old road access to signage on the freeway, became factors in the closure of many established US 66 businesses as travelers could no longer easily find or reach them.
In 1936, US 66 was extended from downtown Los Angeles to Santa Monica to end at US 101 Alt., today the intersection of
Lincoln Boulevards. Even though there is a plaque dedicating US 66 as the
Will Rogers Highway placed at the intersection of Ocean Boulevard and
Santa Monica Boulevard, the highway never terminated there.
US 66 was rerouted around several larger cities via bypass or beltline routes to permit travelers to avoid city traffic congestion. Some of those cities included
St. Louis, Missouri;
Joplin, Missouri; and
Oklahoma City, Oklahoma. The route was also a foundation for many chain stores back in the 1920s, sprouting up next to it to increase business and sales.
gas station. All along the route, preservation efforts are under way to preserve original buildings such as this.
An abandoned early US 66 alignment in central Illinois, 2006
The ghost town of
Two Guns, Arizona
, once featured a zoo, gift shop, restaurant, campground, gas station, and "death cave".
The beginning of the decline for US 66 came in 1956 with the signing of the
Interstate Highway Act by President
Dwight D. Eisenhower who was influenced by his experiences in 1919 as a young Army officer crossing the country in a truck convoy (following the route of the
Lincoln Highway), and his appreciation of the
autobahn network as a necessary component of a national defense system.
During its nearly 60-year existence, US 66 was under constant change. As highway engineering became more sophisticated, engineers constantly sought more direct routes between cities and towns. Increased traffic led to a number of major and minor realignments of US 66 through the years, particularly in the years immediately following World War II when Illinois began widening US 66 to four lanes through virtually the entire state from Chicago to the
Mississippi River just east of
St. Louis, and included bypasses around virtually all of the towns. By the early to mid-1950s, Missouri also upgraded its sections of US 66 to four lanes complete with bypasses. Most of the newer four-lane 66 paving in both states was upgraded to freeway status in later years.
One of the remnants of US 66 is the highway now known as Veterans Parkway, east and south of
Normal, Illinois, and Bloomington, Illinois. The two sweeping curves on the southeast and southwest of the cities originally were intended to easily handle traffic at speeds up to 100 miles per hour (160 km/h), as part of an effort to make Illinois 66 an Autobahn equivalent for military transport.
In 1953, the first major bypassing of US 66 occurred in Oklahoma with the opening of the
Turner Turnpike between Tulsa and Oklahoma City. The new 88-mile (142 km) toll road paralleled US 66 for its entire length and bypassed each of the towns along 66. The Turner Turnpike was joined in 1957 by the new
Will Rogers Turnpike, which connected Tulsa with the Oklahoma-Missouri border west of
Joplin, Missouri, again paralleling US 66 and bypassing the towns in northeastern Oklahoma in addition to its entire stretch through Kansas. Both Oklahoma turnpikes were soon designated as
I-44, along with the US 66 bypass at Tulsa that connected the city with both turnpikes.
In some cases, such as many areas in Illinois, the new Interstate Highway not only paralleled the old US 66, it actually used much of the same roadway. A typical approach was to build one new set of lanes, then move one direction of traffic to it, while retaining the original road for traffic flowing in the opposite direction. Then a second set of lanes for traffic flowing in the other direction would be constructed, finally followed by abandoning the other old set of lanes or converting them into a
The same scenario was used in western Oklahoma when US 66 was initially upgraded to a four-lane highway such as from Sayre through Erick to the Texas border at Texola in 1957 and 1958 where the old paving was retained for westbound traffic and a new parallel lane built for eastbound traffic (much of this section was entirely bypassed by I-40 in 1975), and on two other sections; from Canute to Elk City in 1959 and Hydro to Weatherford in 1960, both of which were upgraded with the construction of a new westbound lane in 1966 to bring the highway up to full interstate standards and demoting the old US 66 paving to frontage road status. In the initial process of constructing
I-40 across western Oklahoma, the state also included projects to upgrade the through routes in El Reno, Weatherford, Clinton, Canute, Elk City, Sayre, Erick, and Texola to four-lane highways not only to provide seamless transitions from the rural sections of I-40 from both ends of town but also to provide easy access to those cities in later years after the I-40 bypasses were completed.
In New Mexico, as in most other states, rural sections of I-40 were to be constructed first with bypasses around cities to come later. However, some business and civic leaders in cities along US 66 were completely opposed to bypassing fearing loss of business and tax revenues. In 1963, the New Mexico Legislature enacted legislation that banned the construction of interstate bypasses around cities by local request. This legislation was short-lived, however, due to pressures from Washington and threat of loss of federal highway funds so it was rescinded by 1965. In 1964,
San Jon became the first cities in New Mexico to work out an agreement with state and federal officials in determining the locations of their I-40 bypasses as close to their business areas as possible in order to permit easy access for highway travelers to their localities. Other cities soon fell in line including
Gallup although it wasn't until well into the 1970s that most of those cities would be bypassed by I-40.
By the late 1960s, most of the rural sections of US 66 had been replaced by I-40 across New Mexico with the most notable exception being the 40-mile (64 km) strip from the Texas border at
Glenrio west through San Jon to Tucumcari, which was becoming increasingly treacherous due to heavier and heavier traffic on the narrow two-lane highway. During 1968 and 1969, this section of US 66 was often referred to by locals and travelers as "Slaughter Lane" due to numerous injury and fatal accidents on this stretch. Local and area business and civic leaders and news media called upon state and federal highway officials to get I-40 built through the area; however, disputes over proposed highway routing in the vicinity of San Jon held up construction plans for several years as federal officials proposed that I-40 run some five to six miles (8 to 10 km) north of that city while local and state officials insisted on following a proposed route that touched the northern city limits of San Jon. In November 1969, a truce was reached when federal highway officials agreed to build the I-40 route just outside the city, therefore providing local businesses dependent on highway traffic easy access to and from the expressway via the north–south highway that crossed old US 66 in San Jon. I-40 was completed from Glenrio to the east side of San Jon in 1976 and extended west to Tucumcari in 1981, including the bypasses around both cities.
Originally, highway officials planned for the last section of US 66 to be bypassed by interstates in Texas, but as was the case in many places, lawsuits held up construction of the new interstates. The US Highway 66 Association had become a voice for the people who feared the loss of their businesses. Since the interstates only provided access via ramps at interchanges, travellers could not pull directly off a highway into a business. At first, plans were laid out to allow mainly national chains to be placed in interstate medians. Such lawsuits effectively prevented this on all but toll roads. Some towns in Missouri threatened to sue the state if the US 66 designation was removed from the road, though lawsuits never materialized. Several businesses were well known to be on US 66, and fear of losing the number resulted in the state of Missouri officially requesting the designation "Interstate 66" for the St. Louis to Oklahoma City section of the route, but it was denied. In 1984, Arizona also saw its final stretch of highway decommissioned with the completion of
I-40 just north of
Williams, Arizona. Finally, with decertification of the highway by the
American Association of State Highway and Transportation Officials the following year, US 66 officially ceased to exist.
With the decommissioning of US 66, no single interstate route was designated to replace it.
I-55 covered the section from Chicago to St. Louis;
I-44 carried the traffic on to Oklahoma City; I-40 took the largest chunk, replacing 66 to
I-15 took over for the route to San Bernardino; and
State Route 2 (SR 2) or
I-10 carried the traffic of US 66 across the Los Angeles metropolitan area to Santa Monica, and the seashore.
"Sidewalk highway" section of US 66 near
When the highway was decommissioned, sections of the road were disposed of in various ways. Within many cities, the route became a "business loop" for the interstate. Some sections became state roads, local roads, private drives, or were abandoned completely. Although it is no longer possible to drive US 66 uninterrupted all the way from Chicago to Los Angeles, much of the original route and alternate alignments are still drivable with careful planning. Some stretches are quite well preserved, including one between Springfield, Missouri, and Tulsa, Oklahoma. Some sections of US 66 still retain their historic 9-foot-wide (2.7 m) "sidewalk highway" form,
 never having been resurfaced to make them into full-width highways. These old sections have a single, paved lane, concrete curbs to mark the edge of the lane, and gravel shoulders for passing.
Some states have kept the 66 designation for parts of the highway, albeit as state roads. In Missouri, Routes
66 are all original sections of the highway.
State Highway 66 (SH-66) in Oklahoma remains as the alternate "free" route near its turnpikes. "Historic Route 66" runs for a significant distance in and near
Flagstaff, Arizona. Farther west, a long segment of US 66 in Arizona runs significantly north of I-40, and much of it is designated as
State Route 66 (SR 66). This runs from
Kingman, Arizona, via
Peach Springs. A surface street stretch between
San Bernardino and
La Verne (known as
) to the east of
Los Angeles retains its number as
SR 66. Several county roads and city streets at various places along the old route have also retained the "66" number.
Route 66 associations were founded in Arizona in 1987 and Missouri in 1989 (incorporated in 1990).
 Other groups in the other US 66 states soon followed. In 1990, the state of Missouri declared US 66 in that state a "State Historic Route". The first "Historic Route 66" marker in Missouri was erected on Kearney Street at Glenstone Avenue in Springfield, Missouri (now replaced—the original sign has been placed at
Route 66 State Park near
 Other historic markers now line—at times sporadically—the entire 2,400-mile (3,900 km) length of road.
 In many communities, local groups have painted or stencilled the "66" and
U.S. Route shield or outline directly onto the road surface, along with the state's name.
 This is common in areas where conventional signage for "Historic Route 66" is a target of repeated
Various sections of the road itself have been placed on the
National Register of Historic Places. The Arroyo Seco Parkway in the Los Angeles Area and US 66 in New Mexico have been made into National Scenic Byways.
Williams Historic Business District and
Urban Route 66, Williams were added to the
National Register of Historic Places in 1984 and 1989, respectively. In 2005, the State of Missouri made the road a state scenic byway from Illinois to Kansas. In the cities of
San Bernardino in California, there are US 66 signs erected along
, and also on Huntington Drive in the city of
Arcadia. "Historic Route 66" signs may be found along the old route on
Colorado Boulevard in
San Dimas, La Verne, and along
Claremont, California. The city of
Glendora, California, renamed Alosta Avenue, its section of US 66, by calling it "Route 66".
Flagstaff, Arizona, renamed all but a few blocks of Sante Fe Avenue as "Route 66". Until 2017, when it was moved to the nearby
Millennium Park, the annual June
Chicago Blues Festival was held each year in
Grant Park and included a "Route 66 Roadhouse" stage on Columbus Avenue, a few yards north of old US 66/Jackson Boulevard (both closed to traffic for the festival), and a block west of the route's former eastern terminus at
Lake Shore Drive.
 Since 2001,
Springfield, Illinois has annually held its "International Route 66 Mother Road Festival" in its downtown district surrounding the
Old State Capitol.
Many preservation groups have tried to save and even landmark the old
neon signs along the road in different states.
In 1999, President
Bill Clinton signed a National Route 66 Preservation Bill that provided for $10 million in matching fund grants for preserving and restoring the historic features along the route.
In 2008, the
World Monuments Fund added US 66 to the
World Monuments Watch as sites along the route such as gas stations, motels, cafés, trading posts and drive-in movie theaters are threatened by development in urban areas and by abandonment and decay in rural areas.
 The National Park Service developed a Route 66 Discover Our Shared Heritage Travel Itinerary describing over one hundred individual historic sites.
 As the popularity and mythical stature of US 66 has continued to grow, demands have begun to mount to improve signage, return US 66 to road atlases and revive its status as a continuous routing.
The U.S. Route 66 Recommissioning Initiative is a group that seeks to recertify US 66 as a
US Highway along a combination of historic and modern alignments.
 The group's redesignation proposal does not enjoy universal support, as requirements the route to meet modern US Highway system specifications could force upgrades that compromise its historic integrity or require US 66 signage be moved to
Interstate highways for some portions of the route.
US 66 has been a fixture in popular culture.
Pixar's 2006 animated film
Cars describes the decline of a once-booming
Radiator Springs, nearly a
ghost town once its mother road, US 66, was bypassed by
Pixar's creative director
John Lasseter, inspired by what he saw during a cross-country road trip with his family in 2000, contacted road historian
Michael Wallis who led the creative team down the still-drivable parts of the route as research for the film. The fictional Radiator Springs is based on multiple real places visited on the five-state research trip through
Peach Springs, Arizona,
Baxter Springs, Kansas, and countless small towns along the way.
 The movie's success generated a resurgence of public interest in US 66.
National Museum of American History
National Museum of American History in
Washington, D.C. has a section on US 66 in its "America on the Move" exhibition. In the exhibit is a portion of pavement of the route taken from Bridgeport, Oklahoma and a restored car and truck of the type that would have been driven on the road in the 1930s. Also on display is a "
Hamons Court" neon sign that hung at a gas station and tourist cabins near Hydro, Oklahoma, a "CABINS" neon sign that pointed to Ring's Rest tourist cabins in
Muirkirk, Maryland, as well as several post cards a traveler sent back to his future wife while touring the route.
Autry National Center
Autry National Center in
Los Angeles opened an exhibition about the fact and fiction of US 66 on June 8, 2014, which ran through January 4, 2015. The exhibit includes the original manuscript of Jack Kerouac's "On The Road," the original scribbled song lyrics for "Route 66" by Bobby Troup (and multiple versions of the song itself), a neon motel sign, maps,
The Negro Motorist Green Book, Woody Guthrie's Martin guitar (and recordings of his dust-bowl-era songs), and many other interesting artifacts.