Interstate 90

Interstate 90 (I-90) is a United States interstate highway that starts in Seattle, Washington and runs east through the states of Washington, Idaho, Montana, Wyoming, South Dakota, Minnesota, Wisconsin, Illinois, Indiana, Ohio, Pennsylvania, New York and Massachusetts in the East Coast in Boston. It serves as an important northern tier transcontinental highway across the Pacific Northwest, Rocky Mountains, Great Plains, the Midwest and the northeastern U.S. connecting the major cities of Seattle, Spokane, Washington; Billings, Montana; Sioux Falls, South Dakota; Rochester (Minnesota); Madison, Wisconsin; Rockford, Illinois; Chicago, South Bend, Indiana; Toledo, Ohio; Cleveland, Erie; Buffalo, Rochester_(New York), Syracuse_(New York), Albany, Springfield_(Massachusetts) and Boston; and the four state capitals of South Dakota (Pierre); Wisconsin (Madison), New York (Albany), and Massachusetts (Boston). It is the longest transcontinental interstate highway across the United States.

Understand
Intestate 90 replaces US Hwy 10 from Seattle to Billings; follows US 87 between Billings and Buffalo, Wyoming; replaces US 14 & 16 between Buffalo and Tomah, Wisconsin; bypasses US 12 between Tomah and Portage; parallels US 51 from Portage to Rockford, Illinois. From South Beloit, Illinois to Boston, I-90 follows a series of toll highways (turnpikes) across the eastern half of the route. Namely along The Jane Addams Memorial Tollway (formerly Northwest Tollway), Chicago Skyway, Indiana Toll Road, Ohio Turnpike, New York State Thruway, and Massachusetts Turnpike which all predate the interstate highway system except in Pennsylvania where I-90 remains toll-free. I-90 is paired with I-80 on the Indiana Toll Road and the Ohio Turnpike between Chicago and Cleveland. US Hwy 20 (which still exists) predates and parallels the toll highways between Rockford, Illinois and Boston, Massachusetts through the same cities and towns as I-90. I-90 and 94 in Wisconsin and west of Wisconsin remain toll-free.

Interstate 94 (I-94) branches from I-90 (exit 494) in Billings, Montana as a northern branch of I-90. It continues east,, across Montana, North Dakota, Minnesota, Wisconsin, Illinois, Indiana and Michigan to its eastern terminus at the Canadian border in Port Huron, Michigan. It intersects I-90 in Billings, Montana; Tomah, Wisconsin; Madison, Wisconsin; Chicago, Illinois; and Lake Station, Indiana. I-94 runs concurrent with I-90 between Tomah and Madison, Wisconsin and in Chicago. It connects Billings, Bismarck, Fargo, Minneapolis–Saint Paul, Madison, Milwaukee, Chicago, Lake Station, and Detroit.

Prepare
When on the road, most of the journey is straightforward freeway driving. If it is winter, it is wise to check the weather and traffic conditions east of the Cascades (in Washington), through the Rocky Mountains and across the Great Plains and the Midwest. Between the Cascades and New York State. Snowy conditions are not uncommon, and officials usually close the road if things become too dangerous at any point along the highway, at varying distances. In some areas the road may be dry and passable while in other areas the road may be closed due to blizzard like weather. Parallel US, state or local highways may or may not be passable during the winters as not all are plowed and maintained during the winter.

Make sure your vehicle is equipped with tires capable of treading on ice (or studded), equipped with chains, filled with appropriate anti-freeze for a lower freezing point, and equipped with a battery that will have no problems starting the car in freezing temperatures. Also make sure the vehicle has a full tank of gas before leaving a city, town or from last night's accommodations as services may be further apart. Charging stations for electric vehicles are fewer and far in between in remote rural areas.

Get in
Interstate 90 begins/ends at its junction with 4th Ave S, South of Downtown Seattle (SODO) at T-Mobile Park (stadium for the Seattle Mariners) & Lumen Field (home of the Seattle Seahawks) in its western terminus. In the eastern terminus it begins/ends at its intersection with MA-1A at Boston Logan International Airport. The road then continues north of Logan Airport, the next, as MA-A1 which curves west as MA-60 and ends at its intersection with US-1 in Revere. I-90 intersects other major US interstate highways (Interstates 5, 82, 15, 94, 25, 29, 35, 39, 41, 55, 57, 69, 75, 80, 86, 87, 84, 95, and 93); various three digit interstates (serving as local auxiliary highways); state highways, U.S highways and local roads in the 13 states where travelers can enter and leave I-90.

By plane
The Interstate 90 corridor can be accessed by plane through Spokane, Missoula, Billings, Sioux Falls, Rochester, MN; Madison, Rockford, IL; Chicago O'Hare, South Bend; Toledo, Ohio; Erie; Buffalo, Rochesters, NY; Syracuse, Springfield, MA; and Boston Logan (at eastern terminus of I-90) with airports next to or near the freeway. In other cities, such as Seattle, Minneapolis-St Paul, Chicago Midway, Milwaukee Mitchell Airport, Cleveland Hopkins and in Albany, the airport is further away (10-120 mi/16-192 km) from the I-90 corridor on another highway.

Drive
Mile markers are statewide mileposts, starting with "0" at the western border of each state which increases as you go east and then starts over at "0" when crossing the state line into the next state. So going west the numbers on the mileposts will decrease and then start over at the highest number when crossing a state line. The exit numbers correspond with the mileposts so some numbers may be skipped if the exits are further apart from one to the next. Other exits that are one next to the other or "2 in 1" may have the same exit number followed by an "A", "B" or even a "C" such as "Exit #100A" to get on A St, "Exit #100B" to get on B St and so forth.

In Washington, I-90 was built over much of US 10 through a series of upgrades to the road. New sections of I-90 were built to bypass Cle Elum, Ellensburg, Moses Lake, Ritzville, Spokane and Spokane Valley with the old US 10 going in through town as Business Loop 90, as a local surface street. The stretch of the old US 10 between Cle Elum (exit 85) and its intersection with US 97 west of Ellensuburg (exit 106) have been renumbered to WA-10 which runs alongside I-90 as a separate road.
 * Washington
 * Begin/ends at T-Mobile Park on on 4th Ave, south of Downtown Seattle (SODO).
 * I-5.svg in N to Vancouver B.C. (via downtown Seattle); S to Portland (via Tacoma & Olympa).
 * I-405.svg in
 * WA-903.svg WA-970.svg in Cle Elum (exits 84 & 85)
 * US 97.svg North to Ellensburg & Wenatchee. Going south US 97 follows I-90 and then I-82 to Yakima (exit 106). Go east on Dolar Way to get into town from the junction.
 * Business_Loop_90.svg WA-10.svg BL-90 (Historic US 10, not signed) goes across town (Ellensburg, Kittitas, Vantage) from Us 97 (Jct 106 of I-90) as W Dolarway Rd, E University, and Vantage Hwy, to Hunziker Rd in Vantage at exit 136. Going west the Historic US 10 continues alongside I-90 towards Cle Elum as WA-10 from US 97.
 * Canyon Road (exit 109) goes north into town as Main St. Going south, Canyon Rd winds southward towards Yakima as State Routes (SR) 821 and 823 along Yakima River (old US 97) through the McPherson Canyon.
 * I-82.svg East US 97.svg South to Yakima ( from exit 110). This is the western terminus of I-82 which goes through Yakima, Sunnyside, and Tri-Cities. It then follows US 395 south towards I-84 (eastern terminus) in Hermiston, Oregon.
 * WA-26.svg in Vantage. From the opposite side of the Columbia River from Vantage, I-90 winds northwards while SR-26 continues east towards Colfax at US 195 via Othello.
 * WA-17.svg in Moses Lake
 * US 395.svg & WA-261.svg in Ritzville
 * WA-23.svg Sprague
 * Business_Loop_90.svg BL-90 (Historic US 10) goes across town (Spokane & Spokane Valley), from Airway Heights (by airport) as Sunset Blvd, Sprague, and E Appleway Ave, to Barker Rd at exit 293.
 * US 2.svg MUTCD I3-5.svg West to Spokane Airport & Davenport (exit 277 from WB lanes and 277B from EB lanes). It's also the same exit for Airway Heights & Fairchild AFB. US 2 goes concurrently on I-90 between Airway Heights (exit 277) and Division St in downtown (exit 281).
 * US 195.svg South to Colfax and Pullman (exit 279)
 * US 2.svg US 395.svg East US 2 to Newport/North US 395 to Colville (exit 281). Both go concurrently north through town as N Division St.
 * US 195.svg South to Colfax and Pullman (exit 279)
 * US 2.svg US 395.svg East US 2 to Newport/North US 395 to Colville (exit 281). Both go concurrently north through town as N Division St.


 * Idaho
 * US 95.svg in Coeur d'Alene
 * Kellogg at exits 49-51

In Montana I-90 and 94 are built over much of US 10 through a series of upgrades to the existing road. New sections of I-90 were built to bypass Alberton, Missoula, Deer Lodge, Butte, Bozeman, Livingston, Big Timber, Billings and Harding with the old US 10 going in through town or the city as Business Loop 90, as a local surface street. The stretch of the old US 10 between Butte (exit 127/127A) and Three Forks (exit 278) have been renumbered to MT-2 paired with MT-69, MT-89 and US 287 in some sections through Toll Mountains, Whitehall and Caldwell. Interstate 94 continues east from its junction with I-90 in Billings (western terminus of I-94) towards the North Dakota state line, over the old US 10 & Yellowstone Trail, through a series of small towns in Yellowstone, Treasure, Rosebud, Custer, Prairie and Wilbaux Counties. From Billings I-90 curves southward alongside the Old US 87 (MT-S451) through Big Horn County into Wyoming. The present US 87 is concurrent on I-90 between Butte and Sheridan, Wyoming.
 * Montana


 * MT-135.svg in St Regis
 * US 93.svg in Wye
 * US 93.svg and MT-200.svg in Missoula. US 93 goes up to Flathead and Kootenai National Forests. Crosses into Canada via Eureka/Grassmere.
 * US 12.svg in Garrison
 * I-15.svg in
 * US 89.svg in Livingston, the road to Yellowstone NP
 * I-94.svg in Billings


 * Wyoming
 * US 14.svg and US 87.svg in Sheridan
 * I-25.svg in Buffalo
 * US 14.svg and WY-59.svg in Gillette

US 16 goes from the eastern gate of Yellowstone National Park, through Mount Rushmore National Park in the Black Hills National Forest, to its eastern terminus at I-190 in Rapid Falls. Historically US 16 connected Yellowstone to Detroit but has been replaced by I-90 and 96. Presently the old US 16 goes alongside I-90 as a two lane road, as SD-240 between the Badlands Loop (exit 131) and Reliance (exit 248), and as SD-38 between Mitchell and Sioux Falls. In other cities/towns US-16 have been re-numbered as Business Loop 90 or designated as a local road such as "Highway 1416" between Rapid Falls and Wall.
 * South Dakota
 * US 85.svg & US 14A.svg in Spearfish
 * Business_Loop_90.svg (exit 52) Peaceful Pines Rd in Black Hawk. Business Loop (BL) 90 follows alongside I-90 as the old US 14 into Rapid City on Sturgis Ave which continues in the other direction towards Sturgis without a US or state highway designation.
 * SD_445.svg Deadwood Ave (exit 55)
 * I-190.svg to US 16.svg (Rushmore Rd) in downtown Rapid City
 * US 83.svg Murdo/White River (exit 192). US 83 continues south from here towards White River while NB traffic goes east on I-90 (concurrent) to exit 212 (Vivian/Pierre).
 * US 83.svg SD_53.svg (exit 212) Vivian/Pierre. It's another north of I-90, on US 83, to reach Pierre the capital of South Dakota.
 * I-29.svg N to Fargo (exit 396B); S to Sioux City, MN (exit 396A)
 * SD_115.svg MUTCD I3-5.svg Cliff Ave Airport (exit 399)
 * I-229.svg (exit 400) serves as an auxiliary bypass around town from the east to I-29 south of town.
 * SD_115.svg MUTCD I3-5.svg Cliff Ave Airport (exit 399)
 * I-229.svg (exit 400) serves as an auxiliary bypass around town from the east to I-29 south of town.


 * Minnesota
 * I-35.svg in Albert Lea


 * Wisconsin
 * I-43.svg in Beloit


 * Illinois
 * Illinois_75.svg in South Beloit
 * Rockford
 * I-39.svg runs concurrently on I-90 to between Rockford, Illinois and Portage, Wisconsin
 * I-39.svg US 51.svg to US 20.svg and Bloomington (exit 17). From the WB lanes I-90 curves north into Wisconsin or get off at exit 17 to get on I-39 south. From Portage, I-90 curves east into Chicago while I-39 exits off at #17 to continue towards Bloomington.
 * US 20.svg
 * US 20.svg in Hampshire
 * in Chicagoland (greater Chicago Metropolitan Area)
 * I-290.svg Illinois_53.svg in Schaumburg
 * I-294.svg in Rosemont near Chicago. Follow I-294 North to get towards Wisconsin (exit 77B) and 294 south towards Indiana (exit 77A). I-294 merges with I-94 going north in Deerfield. Going south, I-294 merges with I-80 in Hazel Crest in the south suburbs. It then run concurrent I-80 east to Lansing, Il where it merges with I-94 going east into Indiana.
 * I-190.svg MUTCD I3-5.svg to O'Hare International Airport near Chicago
 * I-94.svg & I-90.svg are joined for the next 17 miles (27 km) through downtown Chicago. Eastbound I-90 merges into I-94 eastbound (south) only. No access to the westbound lanes of I-94 (going towards Wisconsin).
 * I-290.svg "To Chicago Loop /West Suburbs" in (exit 51-H-I) downtown Chicago.
 * I-55.svg "To St Lous/Lakeshore Dr" (exit 53) near Chicago's Chinatown.
 * Illinois_50.svg MUTCD I3-5.svg Cicero Dr (exit 286 of I-55) to get to Chicago Midway via SB Cicero Dr (IL-50).
 * I-94.svg & I-90.svg South of downtown Chicago I-94 (East towards Indiana on the Ryan Expressway) and I-90 (towards Indiana Toll Rd) splits via exit 59C. Westbound lanes of I-90 automatically merge into I-94 past State St (exit 100) going north into downtown Chicago.
 * US 12 / US 20 / US 41 near Chicago

The Indiana Toll Road is part of the Interstate Highway System which runs through Indiana connecting the Chicago Skyway to the Ohio Turnpike. The toll road is signed with I-90 for its entire length, as well as I-80 east of Lake Station, after having run concurrently with I-94.
 * Indiana

I-94 enters Indiana from Illinois running concurrently with I-80 and US Highway 6 (US 6) on the separate Frank Borman Expressway, in Munster. It goes across to Lake Station where it intersects I-90. From Lake Station, I-94 continues northeast towards Michigan while I-80 goes concurrent on I-90 on the Indiana Toll Road into Ohio. US 6 leaves the Frank Borman Expressway at Exit 15/15A in Lake Station and continues east towards Sandusky, Ohio as a separate road south of the Indiana Toll Road.

US 20 in Indiana is a main east–west highway that is parallel to the Indiana Toll Road. The western terminus of US 20 is at the Illinois state line and the eastern terminus is at the Ohio state line. US 20 through Whiting, East Chicago, and Gary is concurrent with US 12 twice. It passes through the cities and towns in northwestern Indiana as one way, two lane, and four lane surface streets.


 * US 41 in Hammond
 * US 12 in Gary
 * I-65 / US 12 / US 20 in Gary
 * I-94 / US 6 in Lake Station
 * I-80 in Lake Station; joined for 278 miles (447 km) until Elyria, Ohio
 * US 421 in New Durham Township
 * US 31 in South Bend
 * US 131 in York Township
 * I-69 in Fremont


 * Ohio
 * US 20 in Maumee
 * I-75 in Rossford near Toledo
 * I-280 in Lake Township
 * US 250 near Milan
 * US 42 in
 * I-71 in Cleveland
 * I-490 in Cleveland
 * US 422 in downtown Cleveland
 * I-77 in downtown Cleveland
 * US 322 in downtown Cleveland
 * US 6 in downtown Cleveland
 * US 20 in Euclid
 * I-271 in Willoughby Hills near Cleveland


 * Pennsylvania
 * US 6N in Springfield Township
 * I-79 near Erie
 * US 19 near Erie
 * I-86 near Erie
 * US 20 near North East


 * New York
 * US 20 in Hanover
 * US 219 in West Seneca
 * I-190 in
 * I-290 in Williamsville near Buffalo
 * I-490 near Bergen
 * I-390 near Rochester
 * I-490 near Victor
 * I-690 near Syracuse
 * I-81 in Syracuse
 * I-481 near Syracuse
 * I-790 in Utica
 * I-890 near Schenectady
 * I-88 in Rotterdam
 * I-890 near Schenectady
 * I-87 in
 * US 9 in downtown Albany
 * I-787 in downtown Albany
 * US 4 in East Greenbush
 * US 9 / US 20 in Schodack

The Massachusetts Turnpike (I-90 in MA)] spans as the longest east-higway across Massachusetts. The turnpike enters via West Stockbridge from New York state, linking with the Berkshire Connector portion of the New York State Thruway and ends at the Boston Logan Airport east of Boston. US 20 runs its easternmost 153 miles (246 km) through Massachusetts. The highway crosses the state border from New Lebanon, New York, into Hancock and runs eastward to Boston, where it ends at MA-2 in Kenmore Square. It spends the vast majority of its journey paralleling I-90 (Massachusetts Turnpike), which has largely superseded US 20 for through Massachusetts since 1957 when the turnpike opened.
 * Massachusetts
 * US 20.svg in Lee
 * US 202.svg in Westfield
 * I-95.svg / US 5.svg inWest Springfield
 * I-391.svg
 * I-91.svg
 * I-291.svg in Chicopee near Springfield
 * I-84.svg in Sturbridge
 * I-395.svg I-290.svg in Auburn
 * MA_Route_146.svg in Millbury
 * I-495.svg in Hopkinton
 * I-95.svg in Weston
 * I-93.svg in Exit 134 leads towards I-93 south while exit 135 leads to Congress Street in South Boston.
 * US 20.svg & MA_Route_2.svg US 20 (Massachusetts Ave) begins/ends at its intersection with MA-2 (Commonwealth Ave) west of downtown Boston. US 20 runs continuously west to US 101 in Florence, Oregon, west. I-90 (Massachusetts Turnpike in MA) supersedes US 20 between Boston and Rockford, IL. It intersects I-90 at exits 10 and 94 in Massachusetts.
 * MA_Route_1A.svg MUTCD I3-5.svg I-90/Massachusetts Turnpike begins/ends at its junction with MA-1A at Logan International Airport (exit 137) in East Boston.
 * MA_Route_60.svg at US 1.svg MA-1A continues the next north of Logan Airport to its junction at US 1 in Revere. It curves west towards US 1 as MA-60 (Squire Road).
 * MA_Route_60.svg at US 1.svg MA-1A continues the next north of Logan Airport to its junction at US 1 in Revere. It curves west towards US 1 as MA-60 (Squire Road).

Alternative routes

 * I-94.svg Ontario 401.svg Ontario 402.svg Interstate 94 (I-94) is the northernmost highway that starts at its junction with I-90 (exit 494) in Billings, Montana. It continues east,, across Montana, North Dakota, Minnesota, Wisconsin, Illinois, Indiana and Michigan to its eastern terminus at the Canadian border in Port Huron, Michigan, where it crosses into Point Edward, Ontario on the Blue Water Bridge. The same road continues another 293 km east to Toronto (via London) as ON-402 & 401. From Point Edward to London as ON-402, and as ON-401 from London to Toronto. I-94 intersects I-90 in Billings, Montana; Tomah, Wisconsin; Madison, Wisconsin; Chicago, Illinois; and Lake Station, Indiana. I-94 is concurrent with I-90 between Tomah and Madison, Wisconsin and again through downtown Chicago to the South side of Chicago on the I-94 Express. I-90 & 94 are most direct east-west highways between Seattle and Toronto via Billings (Jct I-90/94) and Port Huron. It is the only east-west highway to cross the US/Canadian border. It connects Billings, Bismarck, Fargo, Minneapolis–Saint Paul, Madison, Milwaukee, Chicago, and Detroit.
 * US 2.svg
 * US 10.svg Business_Loop_90.svg Business_Loop_94.svg US 10 goes from its junction with I-94 & US 52 in West Fargo to Manitowoc, Wisconsin through Minnesota and Wisconsin. It goes across Lake Michigan on the USS Badger ferry from Manitowoc to Ludington, Michigan where it continues across West and Central Michigan to its eastern terminus at I-75 in Bay City. Historically US 10 was a continuous highway between Seattle and Bay City via Lake Michigan but has since been decommissioned and replaced by Interstates 90 and 94 to go across North Dakota, Montana, Idaho and Washington into Seattle. Remnants of the old US 10 alongside I-90 and 94 have been re-numbered as Business Loop or Spur 90 or 94 (green shields) to access the cities and towns from the interstate highway. Other remaining sections of the old US 10 have been renumbered as a state highway in Montana, North Dakota and Washington or as a locally named or numbered road without a state or US highway designation in various places.
 * US 12.svg US 12 is a long highway between Aberdeen, Washington and Detroit, Michigan. It is mostly superseded by Interstate 90 (I-90) and I-94, but, unlike most U.S. Highways that have been superseded by an Interstate, US 12 remains intact as an important link for local and regional destinations alongside I-90 and 94.
 * US 16.svg MN-16.svg WIS_16.svg I-96.svg US 16 goes from the eastern gate of Yellowstone National Park to it junction with I-190 in Rapid Falls, through Mount Rushmore National Park in the Black Hills National Forest. Historically US 16 was a continuous highway between Detroit and Yellowstone National Park via Lake Michigan but has since been decommissioned and replaced by Interstate 90 (I-90) between Rapid Falls, South Dakota and Dexter, Minnesota; and by I-96 between Muskegon and Detroit, Michigan. From Rapid Falls to Dexter the old US 16 still remain alongside I-90 as a two lane road with different state highway and county road designations. Between Dexter and Milwaukee the old US 16 has been renumbered as State Route (SR) 16 in both Minnesota and Wisconsin. WIS-16 parallels I-90 or 94 across Wisconsin.
 * US 20.svg US 20 is the longest east-west across the United States spanning between Florence, Oregon and Boston, Massachusetts. It is superseded by the toll highways (I-90) between Rockford, Illinois and Boston, Massachusetts but remains intact. It closely parallels I-90 through Chicagoland (in Illinois); Indiana, Ohio, Pennsylvania, New York and Massachusetts with some sections of US 20 intersecting I-90 in some places.
 * US 30.svg LincolnHighwayMarker.svg I-80.svg The Lincoln Highway is a historic trans-continental highway that starts in Times Square in New York City and runs approximately 3,142 mi (5,057 km) west through the states of New Jersey, Pennsylvania, West Virginia, Ohio, Indiana, Illinois, Iowa, Nebraska, Colorado, Wyoming, Utah, Nevada and California; to Lincoln Park in San Francisco, California. US 30 carries much of the Lincoln Highway from Philadelphia to Granger, Wyoming. Interstates 76 and 80, in turn, supersedes US 30 between Philadelphia, Pennsylvania and Granger, Wyoming with a section of I-80 concurrent with I-90 on the Ohio Turnpike, Indiana Toll Road and the Chicago Skyway.

Go next

 * The American Industry Tour showcases the industrial heritage of the Northeastern United States. As many other historical trails in North America, the tour follows migration routes from east to west, with a chronology from colonial times to the present day. Starting in Boston in the 17th and 18th centuries, we visit the 19th century factory clusters around Albany and New York City, and carry on through industrial regions of Pennsylvania, Ohio and Michigan, which had their heyday during the 20th century, ending in Chicago. Many of the places named in the article are accessible from I-90.
 * I-5.svg US 99.svg Interstate 5 (I-5) (Old U.S. Hwy 99) Interstate 5 serves as the main north-south interstate along the west coast, between Blaine, Washington at the Canadian border to San Ysidro at the Mexican border, south of San Diego. It replaces much of US 99 from Blaine, Washington to Los Angeles, California and US 101 from Los Angeles (where US 101 presently truncates at) to San Diego California. I-90 intersects I-5 in Seattle.
 * The Jazz Track is an itinerary for visiting jazz-related places (particularly big band and traditional jazz) in the United States. Along I-90 Chicago is one of several jazz related places mentioned in the article.
 * Mississippi River
 * The Mohawk Trail was a historical Native American migratory game path. Today it is Massachusetts Route 2, a 63-mile east-west highway that extends from the Massachusetts-New York line to Millers Falls on the Connecticut River. The Mohawk Trail features over 100 attractions and has been recognized as one of the best scenic routes in the United States
 * The Mountains_to_Sound_Greenway trust has acted to protect the route of I-90 from Seattle at the Puget Sound to Ellensburg, Washington; which is the portion of I-90 through the Cascade Mountain Range. Many scenic and unique places in the Cascades can be easily accessed from the Seattle through the I-90 and its branch roads. For example, Snoqualmie Pass is only a one hour drive from downtown Seattle (weather permitting).
 * Pan American (PanAm) Highway In the U.S. all interstate highways make up the 'Pan-American' highway which spans from the northern coast of Alaska to the Darien Gap in Panama. Interstate 90 intersects a the CANAMEX_Corridor, a variation of the Pan-Am Highway from the southern end of the Alaska Highway in Dawson Creek, BC; through Alberta, the United States and eventually into Mexico City at Interstate 15 in Butte, Montana. Another variation of the Pan American Highway connects El Paso at the Mexican border to northern Saskatchewan in Canada by way of I-25/US Hwy 85 in the U.S., and a variety of provincial highways through Saskatchewan which would intersect I-90 at its intersection with I-25 in Wyoming.
 * From Plymouth to Hampton Roads is an itinerary along the Atlantic coast of the United States, showcasing the nation's early history, from the first Anglo-American settlements in the 17th century to the American Civil War, which ended in 1865.
 * US_66_(historic).svg I-55.svg Route 66 (aka Old US 66) was a highway that extended from Chicago to Los Angeles. It crossed much of the American Midwest, Great Plains, and Southwest. Although Highway 66 is no longer commissioned as a US Highway, it represents a multitude of ideas: freedom, migration West, and the loneliness of the American heartland. More than four-fifths of it remain drivable (though not always well-marked) as a collection of state highways and local roads. Radiator Springs is a fictional village on Route 66, depicted in the 2006 Pixar animated film, Cars with real places along the US Route 66 as the backdrop. The eastern terminus of Route 66 is at E Jackson Blvd & Lakeshore Dr (US 41) in downtown Chicago nearest the junction of I-90/94 and I-290/IL-110. From the EB lane of I-90/94 exit at 51E and go east on W Monroe towards Lake Shore Dr (US 41). From the WB lanes of I-90/94 go east on IL-110 towards Lake Shore Dr. One can also travel along I-55 from south of downtown Chicago towards St Louis, as I-55 follows alongside the Route 66 between Chicago and St Louis.
 * US 1.svg US Highway 1 predates the interstate highway system (Interstate 95) still in existence along the eastern seaboard. It connects Fort Kent, Maine in the north to Key West, Florida in the south. I-90 terminates at US 1 as MA-60 in Boston.
 * The "Underground Railroad" is a network of disparate historical routes used by African-American slaves to escape the United States and slavery by reaching freedom in Canada and the northern free states. Today many of the stations along the "railroads" serve as museums and memorials to the former slaves' journey north. Many of which are located in the northern states served by Interstate 90.