U.S. Route 6
Grand Army of the Republic Highway
US 6 highlighted in red
Route information
Length	3,198.87 mi (5,148.08 km)
Existed	November 11, 1926–present
Major junctions
West end	US 395 inBishop, CA
Major intersections	I-15 inSpanish Fork, UT I-70 nearGreen River, UT I-25 inDenver, CO I-35 /I-80 inClive, IA I-55 inChannahon, IL I-80 /I-94 betweenSouth Holland, IL, andLake Station, IN I-65 inGary, IN I-75 inBowling Green, OH I-90 inCleveland, OH I-95 inProvidence, RI
East end	Route 6A inProvincetown, MA
Location
Country	United States
States	California,Nevada,Utah,Colorado,Nebraska,Iowa,Illinois,Indiana,Ohio,Pennsylvania,New York,Connecticut,Rhode Island,Massachusetts
Highway system
United States Numbered Highway System List Special Divided
←US 5 US →US 7 ←Route 2A N.E. →Route 4

U.S. Route 6 (US 6) orU.S. Highway 6 (US 6), also called theGrand Army of the Republic Highway, honoring theAmerican Civil War veterans association, is a main route of theUnited States Numbered Highway System. While it currently runs east-northeast fromBishop, California, toProvincetown, Massachusetts, the route has been modified several times. The highway's longest-lasting routing, from 1936 to 1964, had its western terminus atLong Beach, California. During this time, US 6 was the longest highway in the country.

In 1964, the state of Californiarenumbered its highways, and most of the route within California was transferred to other highways. This dropped the highway's length below that ofUS 20, making it the second-longest U.S. Route in the country. However, since US 20 has a discontinuity throughYellowstone National Park, US 6 remains the longest continuous U.S. Route in the country.

US 6 is a diagonal route, whose number is out of sequence with the rest of the U.S. Route grid in theWestern U.S. When it was designated in 1926, US 6 only ran east ofErie, Pennsylvania. Subsequent extensions, largely replacing the formerU.S. Route 32 andU.S. Route 38 (US 38), have taken it south ofUS 30 atJoliet, Illinois,US 40 nearDenver, Colorado (past the end of US 38),US 50 atEly, Nevada, andUS 70 nearLos Angeles, California, due to its north–south alignment in that state.

US 6 does not serve a major transcontinental corridor, unlike other highways.George R. Stewart, author ofU.S. 40: Cross Section of the United States of America, initially considered US 6, but realized that "Route 6 runs uncertainly from nowhere to nowhere, scarcely to be followed from one end to the other, except by some devoted eccentric".

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The modern US 6 inCalifornia is a short, two-lane, north–south surface highway fromBishop to theNevada state line. Prior to the1964 state highway renumbering, US 6 extended toLong Beach along what is nowUS 395,State Route 14 (SR 14),Interstate 5 (I-5),I-110/SR 110, andSR 1. Despite the fact that the renumbering removed all freeway portions, it is still part of theCalifornia Freeway and Expressway System. US 6's former routing included a short segment of the famousArroyo Seco Parkway.

Currently, US 6 begins at US 395 in Bishop and heads north between farms and ranches inChalfant at the base of the 14,000-foot (4,300 m) westernescarpment of theWhite Mountains. After about 30 miles (48 km),Benton is reached, which has a cafe and gas station.SR 120 begins here, heading west pastMono Lake throughLee Vining, overTioga Pass, and throughYosemite National Park to theSan Joaquin Valley. US 6 continues north to the Nevada state line.

From the California state line, US 6 heads northeast through the semidesert Queen Valley withBoundary Peak, Nevada's highest summit, andMontgomery Peak in California on the right. These twin peaks are the northernmost high summits of theWhite Mountains, both over 13,000 feet (4,000 m). The highway then climbs intopinyon–juniper woodland and crosses Montgomery Pass (7,167 ft or 2,185 m).

From the pass, US 6 descends into barrenshadscale desert, passingColumbus Marsh on the left, then merging withUS 95 from Coaldale Junction toTonopah. TheNevada Test and Training Range begins about 15 miles (24 km) southeast of Tonopah.

Just east of Tonopah, US 6 continues east across a series ofdesert mountain ranges and valleys, including theMonitor Range. AtWarm Springs,SR 375, also known as the "Extraterrestrial Highway", departs to the southeast and US 6 assumes a northeasterly alignment across theReveille,Pancake,Grant andWhite Pine ranges. Rainfall increases eastward, so valleys become less barren and peaks over 11,500 feet (3,500 m) add scenic interest.

Ely is the largest city on US 6 in Nevada.US 50 joins US 6 at Ely. East of Ely, US 6/US 50 cross theSchell Creek Range, known for verdant forests and meadows and for a largemule deer andelk population. The highway descends toSpring Valley, then crosses theSnake Range at Sacramento Pass, north of Nevada's second-highest mountain,Wheeler Peak, where a branch road accessesGreat Basin National Park. Beyond the pass, US 6 passes just north ofBaker, aMormon farming community, and reaches theUtah state line.

US 6 enters Utahconcurrently with US 50 in a remote portion of theGreat Basin Desert; the routes separate atDelta. US 6 then proceeds on a northeast course toward theWasatch Front serving theTintic andEureka historic and mining districts along the way. Upon entering the Wasatch Front, atSantaquin, the route joinsI-15 toSpanish Fork, which is where US 6 reverses course on a southeastern path away from the Wasatch front, also joining withUS 89 for the journey throughSpanish Fork canyon. After cresting theWasatch Range viaSoldier Summit, the route descends into Utah's coal country, which is where it joinsUS 191. AtGreen River, those two routes joinI-70 and rejoin US 50. From Green River east the routes travel concurrently using the route of I-70 following the southern rim of theBook Cliffs. US 191 leaves the concurrency at Crescent Junction but the other three routes remain concurrent as they continue to follow the Book Cliffs toward theGrand Valley into Colorado.

US 6 is basically parallel to, or runs concurrently with,I-70 for a significant portion of its length as it generally heads east from the Utah state line through about half ofDenver. It is unsigned while it is overlapped. It separates to becomeI-70 Business (I-70 Bus.) through the south side ofGrand Junction, rejoining I-70 just east of Palisade. It again separates west ofRifle and runs throughAntlers,Silt,New Castle, andChacra until it again joins I-70. It separates from and runs parallel to, I-70 atDotsero, where theEagle River joins theColorado River. It again joins I-70 just east ofAvon, the location of theBeaver Creek Resort, just a bit west ofVail. A significant departure from I-70 occurs atSilverthorne where it veers a bit south then north, avoiding the nearly two-mile-long (3.2 km) tunnel on I-70 as it goes under theContinental Divide. It passesKeystone Resort andArapahoe Basin before a steep climb to the highest altitude along US 6, 11,990 feet (3,650 m), atLoveland Pass, where it crosses the Continental Divide. It continues down theClear Creek valley as it again reaches I-70 at theLoveland Ski Area straddling the eastern mouth of theEisenhower Tunnel. Slightly east ofIdaho Springs, it separates to go through the scenicClear Creek Canyon. AtGolden, it combines with 6th Avenue to head south until it again crosses paths with I-70. Then, continuing east, it passes throughLakewood and west Denver as the 6th Avenue freeway. From near the eastern terminus of the 6th Avenue freeway, US 6 takes a convoluted route through Denver. First, it turns north onI-25, then heads east on I-70 to Vasquez Boulevard throughElyria-Swansea. The route emerges from the freeway alongside US 85 throughCommerce City, where the pair briefly joinState Highway 2 (SH 2) before separating at Colorado Boulevard. SH 2 represents the historic alignment of US 6 northeast toBrighton, while US 6 combines with I-76, heading northeast, until east ofBrush. It then separates to joinI-76 Bus. until it crosses I-76 east ofSterling, where it changes direction from the Interstate. It continues east until it reachesNebraska. The last town in Colorado that it passes isHolyoke.

From the Colorado state line, US 6 starts going southeast. The first town it goes into isImperial. US 6 runs concurrently withUS 34 nearCulbertson, passing throughMcCook. US 6 then moves to the northeast, throughHastings. At Hastings, US 34 diverges and moves north. US 6 parallelsI-80 north ofMilford until it reachesLincoln. At Lincoln, US 6 becomes West "O" Street, Sun Valley Boulevard, and eventuallyCornhusker Highway as it moves north of I-80 outside of the city, paralleling I-80 toGretna. There US 6 moves due north and becomes the West Dodge Expressway andDodge Street inOmaha. It passes throughDowntown Omaha onparallel one-way streets and runs concurrently withI-480 in Omaha on its last Nebraska segment. East of Omaha, it crosses theMissouri River to enterIowa atCouncil Bluffs, Iowa, on a girder bridge completed in 1966 that replaced theAk-Sar-Ben Bridge, which was the first road bridge to connect the two cities.

From the Nebraska state line, US 6 entersIowa atCouncil Bluffs, across the Missouri River from Omaha where it intersectsI‑29 within the first mile. Through Council Bluffs, it travels south concurrent with I‑29, then turns east to run concurrent with I‑29 andI‑80. Where I-29 and I-80 split, US 6 continues northeast concurrent with I-80. The concurrency with I-80 ends at the interchange with East Kanesville Boulevard, on the northeast side of Council Bluffs, at which point US 6 turns east to run through ruralPottawattamie County. Further east, the highway briefly overlapsUS 59 nearOakland and continues east untilLewis. There, it turns sharply north-northeast toAtlantic where joinsUS 71 until I‑80. It overlaps I‑80 between US 71 andUS 169 atDe Soto. US 6 travels north with US 169 toAdel, then turns east to go towardDes Moines. It enters the Des Moines metro area along Hickman Road inWaukee and then forms the border betweenUrbandale to the north andClive andWindsor Heights to the south. In Des Moines,Iowa Highway 28 (Iowa 28) joins US 6 at 63rd Street, and the two highways head east and north on Merle Hay Road. US 6 splits away at Douglas Avenue and it continues east. Near theDes Moines River, Douglas Avenue becomes Euclid Avenue. In the northeastern part of the city, it intersectsUS 69 andI‑235. The highway turns onto Hubbell Avenue and heads intoAltoona where it meetsUS 65 and rejoins I‑80.^[1]

East of theDes Moines metropolitan area, US 6 again overlaps I‑80 until they reachNewton. There, it splits away to the north and runs parallel to the Interstate. It passes throughGrinnell,Marengo, and theAmana Colonies before arriving inCoralville. InIowa City, it passes through theUniversity of Iowa campus on the banks of theIowa River. The highway heads southeast from Iowa City towardWest Liberty and then more easterly toWilton. At Wilton, the highway heads north to rejoin I‑80 until they reachDavenport. After a short overlapping ofI‑280, US 6 enters the city along Kimberly Road, on which it remains untilI‑74. The two routes then run south to cross theMississippi River into Illinois on theI-74 Bridge.^[1]

InIllinois, US 6 parallelsI-74 and I-80, mostly along its original routing, overlapping with I-74 for its first five miles (8.0 km) and I-80 for the final two miles (3.2 km) of its routing in Illinois. US 6 directly serves the downtowns of many cities for its length, includingOak Forest,Tinley Park,Moline,Geneseo,Atkinson,Annawan,Princeton,Peru,La Salle,Ottawa,Channahon, andJoliet—unlikeUS 20, which, in Illinois, mainly consists of freeway sections that bypass the cities US 6 serves. Like nearbyUS 30 andUS 52, US 6 skirts theChicago city limits.

US 6 crosses the state line and shares the sameBorman Expressway withI-80 andI-94 throughHammond andGary, untilState Road 51 (SR 51, exit 15); it then runs south for about two miles (3.2 km) and turns east until it meetsUS 421 inWestville, then runs south for a mile (1.6 km), then east until it meetsUS 31 andUS 35, and it shares the same road withUS 33 for about five miles (8.0 km) untilLigonier, where US 33 breaks south towardFort Wayne. From there, it is mostly two lanes through Indiana until it meets the Ohio state line just east ofButler. Before the Borman Expressway was completed, US 6 was on Ridge Road, portions of which were signedUS 6 Bus.

US 6 entersOhio from Indiana inWilliams County. It travels throughEdgerton, then just south ofBryan before it passes throughNapoleon,Bowling Green, andFremont, before turning northeast towardSandusky Bay andLake Erie. After passing throughSandusky, the highway follows the southern shore of Lake Erie, passing throughHuron andVermilion. After crossing theCharles Berry Bridge inLorain, it passes through the western suburbs ofGreater Cleveland as Lake Road inSheffield Lake,Avon Lake,Bay Village, andRocky River, and Clifton Boulevard inLakewood and theWest Boulevard–Edgewater neighborhood ofCleveland proper. US 6 follows theCleveland Memorial Shoreway intoDowntown Cleveland, entering downtown by crossing theDetroit–Superior Bridge. US 6 follows Superior Avenue throughPublic Square and the east side of Cleveland before turning east ontoEuclid Avenue inEast Cleveland and Chardon Road in the city ofEuclid. US 6 continues eastward throughLake County,Geauga County, and finally intoAshtabula County before entering the state ofPennsylvania along thePymatuning Reservoir causeway.

Ohio also has analternate route of US 6 inGreater Cleveland.

US 6 runs for 403 miles (649 km) inPennsylvania between its entrance point 20 miles (32 km) west ofMeadville and its exit atMatamoras. From the Ohio border toUS 322 inConneaut Lake, the route runs in a southeasterly direction. US 6 then joins US 322 and heads east to Meadville, picking upUS 19 west of the city. South of downtown, US 322 splits from the concurrency while US 6 and US 19 remain concurrent through Meadville. The two routes continue northward toMill Village, where US 6 and US 19 split at a junction withUS 6N.

For the remainder of its routing in Pennsylvania, US 6 runs roughly parallel to theNew York–Pennsylvania border. Along the way, US 6 is concurrent withUS 62 for a short distance nearWarren.US 11 joins US 6 from the north inFactoryville. They run concurrently toScranton, where US 11 continues south and US 6 east. AtMilford, US 6 meetsUS 209. The two routes embark to the northeast, crossing theDelaware River fromMatamoras toPort Jervis, New York.

The 79-mile (127 km) portion of US 6 inNew York travels throughOrange,Putnam, andWestchester counties, going across the southern part of the state through the northern suburbs ofNew York City. The route enters the state along with US 209 inPort Jervis. The two routes split just north of town, with US 209 taking a more northerly route to accessKingston. US 6, in contrast, runs primarily east–west through southern New York.

A section of US 6 runs concurrent withNew York State Route 17 (NY 17; The Quickway) betweenGoshen andHarriman. The route is currently being upgraded to become part ofI-86. At Harriman, US 6 passes through one of the largest interchanges in the state of New York, where US 6/NY 17 meetI-87 (New York State Thruway) andNY 32. NY 17 becomes an at-grade road and heads south, while US 6 remains a limited-access freeway as it heads east intoHarriman State Park. Near the east side of the park, US 6 intersects thePalisades Interstate Parkway and runs concurrently with it to the historicBear Mountain Bridge, where US 6 is joined byUS 202 and is narrowed to a rural two-lane road as it crosses theHudson River with scenic views of theHudson Highlands.

On the other side of the river and exiting Orange County for Westchester, US 6 and US 202 run along the Hudson River toPeekskill and has a short concurrency withUS 9 before the three routes split, allowing US 6 to continue to the northeast through northern Westchester County and into Putnam County. At Shrub Oak, US 6 has an interchange with the historicTaconic State Parkway, one of the first and most scenic long-distance freeways in the U.S. InBrewster, US 6 joins US 202 once again, with the routes running concurrently intoConnecticut. US 6 and US 202 also have a large interchange withI-84,I-684, andNY 22 in Brewster.

US 6 runs for 116.3 miles (187.2 km) in Connecticut. It enters from the town ofSoutheast, New York, concurrent withUS 202, shortly passes through begins the city ofDanbury, and ends at the Rhode Island state line in the town ofKillingly. In western Connecticut, US 6 either closely parallels or is concurrent withI-84, serving as the local route in the suburbs of Danbury,Waterbury,Bristol, andHartford. It crosses theConnecticut River (overlapped with I-84 andUS 44) on theBulkeley Bridge. In eastern Connecticut, US 6 is one of the principal routes connecting Hartford andProvidence, passing through the small urban areas ofWillimantic andDanielson. The unsigned portion of theConnecticut Turnpike then meets with US 6 shortly before crossing theRhode Island state line.

US 6 covers approximately 26.5 miles (42.6 km) in Rhode Island fromFoster (western border withKillingly, Connecticut) toEast Providence (eastern border withSeekonk, Massachusetts). In and aroundProvidence, US 6 overlaps withRoute 10, as well asUS 1A,US 44,I-95,I-195, andI-295.

Beginning and ending signage for US 6 in Provincetown, Massachusetts

US 6 runs approximately 117.5 miles (189.1 km) inMassachusetts, paralleling I-195 between Providence andWareham, and serves as the local business route. US 6 continues ontoCape Cod across theSagamore Bridge as afreeway fromBourne toOrleans. North of Orleans, it becomes a surface road again to its terminus inProvincetown. Although the westbound sign in Provincetown has been updated to reflect the shorter terminus inBishop, California, the eastbound sign in Provincetown still reflects the original coast-to-coast terminus ofLong Beach, California (see photo).

The first interstate numbering along the path of US 6 wasRoute 3 of theNew England road marking system, designated in 1922. This route connectedProvincetown with the New York–Connecticut border viaProvidence,Hartford, andDanbury.^[2][3] In late 1925, theJoint Board on Interstate Highways approved the preliminary plan for U.S. Routes. US 6 was restricted toNew England and southeasternNew York, with its vague description matching the existing Route 3 toDanbury, Connecticut, and heading west from there toUS 7 atBrewster, New York.^[4] By the time the final plan was approved in late 1926, a second section had been added, from theNew York–Pennsylvania border atPort Jervis, New York, west toUS 120 inKane, Pennsylvania.^[5] This did not last long, for the April 1927 route log shows the eastern segment running only to the border of New York, short of Brewster, while the western segment was extended in both directions—east toKingston, New York, and west toErie, Pennsylvania (the latter replacing part of US 120). The western segment was also swapped withUS 106 betweenCarbondale andTunkhannock, Pennsylvania, taking US 6 throughScranton.^[6] The gap through New York was eliminated in 1928 with a new alignment across the state, crossing theHudson River on theBear Mountain Bridge; the old route between Kingston and Port Jervis became the firstUS 6N.^[7]

While US 6 replaced the general corridor of Route 3 in New England, some portions used different alignments. One of these was onCape Cod, where Route 3 had used a southerly alignment that is nowRoute 28. Instead, US 6 followed the more direct route betweenBuzzards Bay andOrleans that had been the southern extremity ofRoute 6, and now known asRoute 6A. Farther west, in Connecticut, US 6 ran via theSouth Coventry Historic District, while Route 3 had servedAndover; the old route becameUS 6A.^{[citation needed]} US 6 is now on the old Route 3, while the South Coventry route now carriesRoute 31. A different alignment was also chosen for US 6 betweenPlainville andWoodbury; Route 3 ran viaMilldale andWaterbury, and became parts ofRoute 14 andRoute 10 in the1932 state highway renumbering.^[8] Here, US 6 mostly remains on its original routing, with the main difference being betweenHartford andTerryville, where US 6 followed the presentRoute 4, Route 10, andRoute 72. The final difference was fromDanbury west to the New York state line; here, US 6 ran straight west, while Route 3 had left the Danbury area to the south, curving to the southwest throughRidgefield to the border. Part of this becameUS 7, while the rest becameRoute 35 in 1932.^{[citation needed][2][3][6]}

In New York, US 6 replaced all of Route 37—known as the "Bridge Route"—over the Bear Mountain Bridge,overlapped part ofNY 17, and was assigned to an unnumbered road fromMiddletown west to Port Jervis.^[9][10] The original route, which soon became US 6N, replacedNY 50, and is now part ofUS 209. The part of US 6 in Pennsylvania replaced Route 7, also known as theRoosevelt Highway, anauto trail.^[3] The Roosevelt Highway Association extended the name east with US 6 to Cape Cod by 1930.^[11]

U.S. Route 32
Location	Omaha, Nebraska–Chicago, Illinois
Existed	1926–1934

U.S. Route 38
Location	Greeley, Colorado–Omaha, Nebraska
Existed	1926–1931

Two other routes that would become part of US 6 were included in the 1925 plan: US 32 fromChicago, Illinois toOmaha, Nebraska, and US 38 fromLincoln, Nebraska toGreeley, Colorado.^[4] As part of the fine-tuning during 1926, US 38 was extended east from Lincoln to Omaha, allowingUS 77, which had been assigned to this road, to extend north toSioux City, Iowa. These routes, which now connected end-to-end at Omaha, replaced a large portion of theDetroit–Lincoln–Denver Highway, which split atPrinceton to bypass Chicago to the south viaJoliet. They followed existing state highways:SH 2 andSH 14 in Colorado,Nebraska Highway 7 in Nebraska,Iowa 2 andIowa 7 in Iowa, andIllinois Route 7 (IL 7) andIL 18 in Illinois.^[3][5]

Most of US 32 and all of US 38 became a western extension of US 6 on June 8, 1931, and the Roosevelt Highway name followed.^[12] To connectWestern Pennsylvania toCentral Indiana, relatively minor roads^[3] (including the route for SR 6 in Indiana) were used, except west of Joliet, where it used a part of the old Detroit–Lincoln–Denver Highway. The short stub toErie, Pennsylvania, formed at the old west end becameUS 6N, and US 32 remained in Illinois, running independently from Chicago to Princeton andoverlapping US 6 toDavenport, Iowa.^[7] In 1934, US 32 was absorbed intoUS 34.

The Roosevelt Highway Association continued to push for an extension,^[13] and, in December 1936, theAmerican Association of State Highway Officials made US 6 (and thus the Roosevelt Highway) a transcontinental route from Cape Cod, Massachusetts, toLong Beach, California.^[14][15] It took a new route fromWiggins, Colorado, southwest toDenver (the old route to Greeley became an extendedUS 34^{[citation needed]}) and west over theRocky Mountains toLeadville, overlappingUS 24 toGrand Junction andUS 50 toSpanish Fork, Utah. From Spanish Fork toEly, Nevada, it followed a roadway that had yet to be improved in areas; the rest of the route, from Ely toSouthern California, followed the oldMidland Trail, running almost north–south in California. The unimproved segment from Ely east toDelta, Utah, about 160 miles (260 km) long, was, according toBusinessWeek, "nothing but a wagon trail-rutted, filled with dust [...] one of the worst chunks of federal road in the country". Paving was completed in September 1952, with a two-day celebration in Delta marking the occasion.^[7]

MajorWilliam L. Anderson, Jr., of theU.S. Army recommended that US 6 be designated the Grand Army of the Republic Highway, honoring theUnion soldiers in theCivil War. TheSons of Union Veterans of the Civil War began pushing for the name in April 1934. Massachusetts, the first state to apply the name, passed a law to do so on February 2, 1937; it was not until at least 1948 that all states had agreed. The highway was formally dedicated at theLong Beach end on May 3, 1953,^[7] though the Roosevelt Highway Association continued to exist at least through the 1960s.^[16]

As part of the1964 state highway renumbering in California, US 6 was truncated to its intersection withUS 395 atBishop. The portions of the former route that did not overlap other routes, including US 395 andI-110/SR 110, were redesignated asSR 14.^[7][17]

Starting in early 1983, US 6 was a discontinuous route for almost one year, due to a massive landslide that destroyed the town ofThistle, Utah. The highway was rebuilt by blasting a path higher up the canyon wall. The landslide remains the most costly in the history of the U.S.

Since the 1970s, portions of US 6 in Iowa have been moved permanently onto I-80. The first section, between US 71 and Adair, was rerouted in 1972.^[18] In 1980, three lengthy sections were moved onto the Interstate: 26 miles (42 km) in western Iowa between Adair and Dexter,^[19] 25 miles (40 km) in central Iowa between Altoona and Newton,^[20] and 20 miles (32 km) in eastern Iowa between Wilton and Davenport.^[21] On July 1, 2003, 15 miles (24 km) between Dexter and Adel were turned over to Dallas County.^[22] US 6, which had previously split away from I-80 at the Dexter exit, was continued along I-80 to the US 169 interchange at De Soto, and then along US 169 to Adel.^[23][24]

In 2015, theAmerican Association of State Highway and Transportation Officials (AASHTO) approved a request from theColorado Department of Transportation to eliminate US 6 through the city ofRifle, meaning that US 6 is now discontinuous between Rifle andGrand Junction, although current signage does not reflect this change.^[25]

California

US 395 inBishop

Nevada

US 95 inCoaldale. The highways travel concurrently toTonopah.

US 50 /US 93 inEly. US 6/US 50 travel concurrently toDelta, Utah. US 6/US 93 travel concurrently toMajors Place.

Utah

I-15 inSantaquin. The highways travel concurrently toSpanish Fork.

US 89 inSpanish Fork. The highways travel concurrently for just under 10 miles (16 km).

US 191 north ofHelper. The highways travel concurrently to east-southeast ofGreen River.

I-70 /US 50 west ofGreen River. US 6/US 50 travel concurrently toGrand Junction, Colorado. I-70/US 6 run mostly parallel between here and just east ofIdaho Springs, Colorado with the two routes, joining, separating and crossing over each other several times in this span.

Colorado

US 24 northwest ofMinturn (as part of a concurrency with I-70).

US 40 east ofEmpire (as part of a concurrency with I-70). The highways travel concurrently to east of Idaho Springs

I-70 east of Idaho Springs. East end of a mostly concurrent route with I-70 since Green River, Utah (with several separations and merges)

US 40 inGolden

I-70 in Golden

I-25 /US 85 /US 87 inDenver. I-25/US 6/US 87 travel concurrently through the city. US 6/US 85 travel concurrently to nearCommerce City.

US 40 /US 287 in Denver

I-25 /I-70 /US 87 in Denver. I-70/US 6 travel concurrently through the city.

I-270 /US 36 inCommerce City

I-76 northwest ofDerby. The highways travel concurrently to northeast ofBrush.

US 34 northeast ofWiggins. The highways travel concurrently to west ofFort Morgan.

US 138 inSterling

I-76 in Sterling

US 385 inHolyoke

Nebraska

US 34 west ofCulbertson. The highways travel concurrently toHastings

US 83 inMcCook. The highways travel concurrently through the city.

US 283 inArapahoe

US 136 north ofEdison

US 183 inHoldrege

US 281 inHastings. The highways travel concurrently through the city.

US 81 inFairmont

I-80 /US 77 inLincoln

I-80 inWaverly

US 275 inWest Omaha

I-680 inOmaha

I-480 in Omaha. The highways travel concurrently toCouncil Bluffs, Iowa.

Iowa

I-29 /I-480 inCouncil Bluffs

I-80 in Council Bluffs

US 59 inBelknap Township. The highways travel concurrently toOakland.

US 71 inAtlantic. The highways travel concurrently toPymosa Township.

I-80 /US 71 inPymosa Township. I-80/US 6 travel concurrently toDe Soto.

I-80 /US 169 inDe Soto. US 6/US 169 travel concurrently toAdel.

I-35 /I-80 on theClive–Urbandale city line.

US 69 inDes Moines

I-235 in Des Moines

US 65 inAltoona

I-80 /US 65 in Altoona. I-80/US 6 travel concurrently toNewton.

US 63 north-northwest ofMalcom. The highways travel concurrently to north of Malcom.

US 151 south-southwest of theAmana Colonies. The highways travel concurrently to south of the Amana Colonies.

I-80 inSugar Creek Township. The highways travel concurrently toDavenport.

I-80 /I-280 inDavenport. I-280/US 6 travel concurrently for approximately 0.824 miles (1.326 km).

US 61 in Davenport

I-74 on the Davenport–Bettendorf city line. The highways travel concurrently toMoline, Illinois.

US 67 inBettendorf

Illinois

I-74 /I-280 inMoline

US 150 in Moline

I-80 inColona

US 34 inSheffield. The highways travel concurrently toPrinceton.

I-180 east ofPrinceton.

I-39 /US 51 inLaSalle

I-55 inChannahon

US 52 inJoliet. The highways travel concurrently through the city.

US 30 in Joliet. The highways travel concurrently through the city.

I-355 inNew Lenox

US 45 inOrland Park

I-57 inMarkham

I-294 in Markham

I-94 inSouth Holland

I-80 /I-94 inLansing. The highways travel concurrently toLake Station, Indiana.

Indiana

US 41 inHammond. The highways travel concurrently through the city.

I-65 inGary

US 421 inWestville. The highways travel concurrently to south-southeast of Westville.

US 35 south ofKingsbury. The highways travel concurrently toSouth Center.

US 31 southeast ofLa Paz

US 33 inBenton Township. The highways travel concurrently toLigonier.

I-69 west-northwest ofWaterloo

Ohio

US 127 inPulaski Township

US 24 inNapoleon. The highways travel concurrently toLiberty Township.

I-75 inCenter Township

US 23 on theFreedom–Scott township line

US 20 inFremont. The highways travel concurrently through the city.

US 250 inSandusky

US 20 inLakewood. The highways travel concurrently toCleveland.

US 20 /US 42 /US 322 /US 422 inCleveland. US 6/US 322 travel concurrently through the city.

I-90 in Cleveland

US 20 inEast Cleveland. The highways travel concurrently toEuclid.

Pennsylvania

US 322 inConneaut Lake. The highways travel concurrently toMeadville.

US 19 inVernon Township. The highways travel concurrently toLeBoeuf Township.

I-79 in Vernon Township

US 6N /US 19 inLeBoeuf Township

US 62 inBrokenstraw Township. The highways travel concurrently toWarren.

US 219 inHamlin Township

I-99 /US 15 inMansfield

US 220 inNorth Towanda Township

US 11 inClinton Township. The highways travel concurrently toChinchilla.

I-81 /I-476 inChinchilla. I-81/US 6 travel concurrently toDunmore.

I-81 /I-84 /I-380 inDunmore

I-84 inMilford Township

US 209 inMilford. The highways travel concurrently toPort Jervis, New York.

I-84 inWestfall Township

New York

US 209 /NY 42 /NY 97 inPort Jervis

I-84 /Route 23 inPort Jervis

I-84 /NY 17M inMiddletown. US 6 and NY 17M run concurrently to Goshen.

Future I-86 /NY 17 /NY 17M inGoshen. US 6 and NY 17 run concurrent to Harriman, with the concurrency commonly called6 and 17.

Future I-86 /I-87 Toll /New York Thruway /NY 17 /NY 32 inHarriman

Palisades Parkway /Seven Lakes Drive inHarriman State Park. US 6 and the Palisades Parkway run concurrently to Bear Mountain.

Palisades Parkway /US 9W /US 202 inBear Mountain State Park. US 6 and US 202 travel concurrently toPeekskill.

US 9 /Bear Mountain State Parkway inCortlandt. US 6/202 and US 9 travel concurrently to Peekskill.

US 9 /US 202 /NY 35 inPeekskill

Taconic State Parkway atShrub Oak

US 202 /NY 22 inBrewster. US 6 and US 202 travel concurrently toDanbury, Connecticut, and US 6/202 and NY 22 have a short concurrency.

I-84 /I-684 /NY 22 inBrewster

Connecticut

I-84 /US 7 /US 202 inDanbury. The highways travel concurrently through the city.

I-84 inNewtown. The highways travel concurrently toSouthbury.

Route 8 inThomaston

I-84 inFarmington. The highways travel concurrently toManchester.

US 44 inHartford. The highways travel concurrently to East Hartford.

I-91 in Hartford

Route 15 /US 5 in East Hartford

I-384 inManchester

I-84 /US 44 inManchester. US 6/US 44 travel concurrently toBolton.

I-384 /US 44 inBolton

I-395 /Connecticut Turnpike inKillingly

Rhode Island

I-295 inJohnston. The highways travel concurrently through the city.

I-95 inProvidence. The highways travel concurrently through the city.

US 1 in Providence

I-95 /I-195 in Providence. I-195/US 6 travel concurrently toEast Providence.

US 44 in Providence. The highways travel concurrently toEast Providence.

Massachusetts

I-195 inSwansea

Route 6A inProvincetown

^[26]

• Special routes of U.S. Route 6
• U.S. Route 106
• U.S. Route 206
• U.S. Route 138
• U.S. Route 6N
• U.S. Route 6N (New York)
• Massachusetts Route 6A

Wikimedia Commons has media related toU.S. Route 6.

• Endpoints of US 6
• Federal Highway Administration: US 6
• U.S. Route 6 Tour Association
• Route 6: The Longest U.S. Transcontinental Highway
• US 6 in Connecticut (Scott Oglesby)
• Linesville, Pa., National U.S. Route 6 Museum Site

• U.S. Route 6
• United States Numbered Highway System
• 1926 establishments in the United States
• Grand Army of the Republic buildings and structures

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• Articles with incomplete citations from December 2021
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• Use mdy dates from March 2015
• Use American English from February 2023
• All Wikipedia articles written in American English
• Infobox road instances in the United States
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• Articles with unsourced statements from July 2007
• Commons category link from Wikidata
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