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{{Short description|Interstate Highway across northern United States}} {{Use American English|date=April 2025}} {{Featured article}} {{Use mdy dates|date=October 2017}} {{Infobox road |country=USA |type=I |route=90 |map={{maplink|frame=yes|plain=yes|frame-align=center|frame-width=310|frame-height=240|type=line|from=Interstate 90.map}} |map_custom=yes |map_notes=Map of the contiguous United States with I-90 highlighted in red |map_alt=A map of the contiguous United States showing the route of Interstate 90 as it travels from west to east through the northern states. |length_mi=3099.74 |length_ref=<ref name="FHWA-Routes">{{cite web |date=January 26, 2022 |title=Table 1: Main Routes of the Dwight D. Eisenhower National System of Interstate and Defense Highways as of December 31, 2021 |url=https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table01.cfm |work=Route Log and Finder List |publisher=[[Federal Highway Administration]] |access-date=February 10, 2022 |archive-date=April 22, 2012 |archive-url=https://web.archive.org/web/20120422220808/http://www.fhwa.dot.gov/reports/routefinder/table1.cfm |url-status=live }}</ref><ref name=WisDOT/> |established=1956 |direction_a=West |direction_b=East |terminus_a={{Jct|state=WA|SR|519}} in [[Seattle, Washington|Seattle, WA]] |junction={{plainlist|1=<!--Only list a maximum of 10 junctions here per [[WP:USRD/STDS]] and discuss on the talk page before changing what is here.--> *{{Jct|country=USA|I|5}} in Seattle, WA *{{Jct|country=USA|I|15}} near [[Butte, Montana|Butte, MT]] *{{Jct|country=USA|I|25}} near [[Buffalo, Wyoming|Buffalo, WY]] *{{Jct|country=USA|I|35}} in [[Albert Lea, Minnesota|Albert Lea, MN]] *{{Jct|country=USA|I|55}} in [[Chicago, Illinois|Chicago, IL]] *{{Jct|country=USA|I|65}} in [[Gary, Indiana|Gary, IN]] *{{Jct|country=USA|I|80|I|94|US|6}} in [[Lake Station, Indiana|Lake Station, IN]] *{{Jct|country=USA|I|75}} in [[Rossford, Ohio|Rossford, OH]] *{{Jct|country=USA|I|80}} in [[Elyria, Ohio|Elyria, OH]] *{{Jct|country=USA|I|87|dab1=New York}} in [[Albany, New York|Albany, NY]] *{{Jct|country=USA|I|95}} in [[Weston, Massachusetts|Weston, MA]]}} |terminus_b={{Jct|state=MA|Route|1A|extra=Airport}}/[[Logan International Airport]] in [[Boston, Massachusetts|Boston, MA]] |states= [[Washington (state)|Washington]], [[Idaho]], [[Montana]], [[Wyoming]], [[South Dakota]], [[Minnesota]], [[Wisconsin]], [[Illinois]], [[Indiana]], [[Ohio]], [[Pennsylvania]], [[New York (state)|New York]], [[Massachusetts]] }} '''Interstate 90''' ('''I-90''') is an east–west transcontinental [[freeway]] and the longest [[Interstate Highway]] in the [[United States]] at {{convert|3,099.7|mi|km|}}. It begins in [[Seattle, Washington]], and travels through the [[Pacific Northwest]], [[Mountain states|Mountain West]], [[Great Plains]], [[Midwestern United States|Midwest]], and the [[Northeastern United States|Northeast]], ending in [[Boston]], Massachusetts. The highway serves 13 states and has 15 [[List of auxiliary Interstate Highways|auxiliary routes]], primarily in major cities such as [[Chicago]], [[Cleveland]], [[Buffalo, New York|Buffalo]], and [[Rochester, New York|Rochester]]. I-90 begins at [[Washington State Route 519]] in Seattle and crosses the [[Cascade Range]] in Washington and the [[Rocky Mountains]] in [[Montana]]. It then traverses the northern Great Plains and travels southeast through [[Wisconsin]] and the Chicago area by following the southern shore of [[Lake Michigan]]. The freeway continues across [[Indiana]] and follows the shore of [[Lake Erie]] through [[Ohio]] and [[Pennsylvania]] to Buffalo. I-90 travels across New York by roughly following the historic [[Erie Canal]] and traverses [[Massachusetts]], reaching its eastern terminus at [[Massachusetts Route 1A]] near [[Logan International Airport]] in Boston. The freeway was established by the [[Federal-Aid Highway Act of 1956]], replacing a series of existing [[United States Numbered Highway System|U.S. highways]] that had been preceded by local roads and [[auto trail]]s established in the early 20th century. I-90 was numbered in 1957, reflecting its status as the northernmost transcontinental route of the system, and construction was underway on several sections with funding from the Federal-Aid Highway Act. The route also incorporates several [[toll road]]s that predate the Interstate Highway System, including the [[Jane Addams Memorial Tollway]], [[Indiana Toll Road]], [[Ohio Turnpike]], [[New York State Thruway]], and the [[Massachusetts Turnpike]]. These toll roads opened in the 1950s and were followed by toll-free sections in Pennsylvania and Wisconsin that were finished in the 1960s. The Midwestern sections of I-90 were fully completed in 1978, and most of the route between Seattle and [[South Dakota]] opened by 1987. The final section, near the western terminus in Seattle, opened in September 1993; an eastern extension in Boston was completed in 2003 as part of the [[Big Dig]] project. ==Route description== {{lengths table|length_ref=<ref name="FHWA-Routes"/>}} |- |[[Interstate 90 in Washington|{{abbr|WA|Washington}}]] |{{convert|296.92|mi|km|disp=table}} |- |[[Interstate 90 in Idaho|{{abbr|ID|Idaho}}]] |{{convert|73.55|mi|km|disp=table}} |- |[[Interstate 90 in Montana|{{abbr|MT|Montana}}]] |{{convert|552.46|mi|km|disp=table}}<!--Includes 7.65 mi with I-15--> |- |[[Interstate 90 in Wyoming|{{abbr|WY|Wyoming}}]] |{{convert|208.80|mi|km|disp=table}} |- |[[Interstate 90 in South Dakota|{{abbr|SD|South Dakota}}]] |{{convert|412.76|mi|km|disp=table}} |- |[[Interstate 90 in Minnesota|{{abbr|MN|Minnesota}}]] |{{convert|275.70|mi|km|disp=table}} |- |[[Interstate 90 in Wisconsin|{{abbr|WI|Wisconsin}}]] |{{convert|187.13<ref name="WisDOT">{{cite book |author= Southwest Region Staff |title= State Trunk Highway Log for Southwest Region |date= December 31, 2008 |publisher= Wisconsin Department of Transportation |location=Madison, WI |type= XLS |at= 090E}}</ref> |mi|km|disp=table}} |- |[[Interstate 90 in Illinois|{{abbr|IL|Illinois}}]] |{{convert|123.89|mi|km|disp=table}}<!--Includes 15.39 mi with I-94--> |- |[[Interstate 90 in Indiana|{{abbr|IN|Indiana}}]] |{{convert|156.28|mi|km|disp=table}}<!--Includes 135.6 mi with I-80--> |- |[[Interstate 90 in Ohio|{{abbr|OH|Ohio}}]] |{{convert|244.75|mi|km|disp=table}}<!--Includes 142.80 mi with I-80--> |- |[[Interstate 90 in Pennsylvania|{{abbr|PA|Pennsylvania}}]] |{{convert|46.30|mi|km|disp=table}} |- |[[Interstate 90 in New York|{{abbr|NY|New York}}]] |{{convert|385.48|mi|km|disp=table}} |- |[[Interstate 90 in Massachusetts|{{abbr|MA|Massachusetts}}]] |{{convert|135.72|mi|km|disp=table}} |- |Total |{{convert|3,099.74|mi|km|disp=table}} |} I-90 is the longest [[Interstate Highway]] in the United States, spanning {{convert|3,099.7|mi|km}} across the northern portion of the coterminous part of the country.<ref name="FHWA-Facts"/> The transcontinental freeway passes through 13 states in the [[Pacific Northwest]], [[Mountain states|Mountain West]], [[Great Plains]], [[Midwestern United States|Midwest]], and the [[Northeastern United States|Northeast]] regions of the United States.<ref name="FHWA-Facts">{{cite web |year=2010 |title=Eisenhower Interstate Highway System, Previous Facts of the Day |url=https://highways.dot.gov/highway-history/interstate-system/50th-anniversary |publisher=Federal Highway Administration |access-date=November 28, 2021 |archive-date=August 8, 2020 |archive-url=https://web.archive.org/web/20200808130349/https://www.fhwa.dot.gov/interstate/previousfacts.cfm |url-status=live }}</ref><ref name="google">{{google maps |title=Overview of Interstate 90 |url=https://www.google.com/maps/dir/47.5902689,-122.3290545/43.7992152,-99.3498824/41.8495308,-87.644372/42.6648806,-73.7289984/42.3776024,-71.0270117/@44.1147106,-105.6436969,3287233m/am=t/data=!3m2!1e3!4b1!4m13!4m12!1m5!3m4!1m2!1d-106.6246939!2d44.3328471!3s0x5335770ccdea65cf:0xc100e85f0a55d267!1m0!1m0!1m0!1m0!3e0!4e1 |accessdate=November 29, 2021}}</ref> From the [[Wisconsin]]–[[Illinois]] state line to [[Massachusetts]], approximately {{convert|760|mi|km}} of I-90 uses [[toll road|turnpikes]] and other tolled highways with the exception of segments in [[Chicago]], northeastern Ohio, [[Pennsylvania]], and [[Albany, New York]]. The toll road sections comprise 25 percent of the freeway's total length.<ref name="FHWA-Facts"/><ref>{{cite web |author=((FHWA Office of Transportation Policy Studies)) |date=September 2009 |title=Longer Combination Vehicles on Exclusive Truck Lanes: Interstate 90 Corridor Case Study |url=https://www.fhwa.dot.gov/policy/otps/110721/sec1.cfm |publisher=Federal Highway Administration |accessdate=December 9, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009232848/https://www.fhwa.dot.gov/policy/otps/110721/sec1.cfm |url-status=live }}</ref> According to 2011 data from the [[Federal Highway Administration]], the busiest section of I-90 is in the Chicago area, where a [[Annual average daily traffic|daily average]] of 306,574 vehicles use the freeway. The lowest daily traffic counts on I-90 were recorded in Wyoming, where an average of 9,820 vehicles used rural sections of the freeway.<ref>{{cite web |author=((FHWA Office of Highway Policy Information)) |date=August 2013 |title=2011 Interstate Brief: Summary of the Interstate System by State and Route Number |pages=4, 15 |url=https://www.fhwa.dot.gov/interstatebrief2011/2011interstatebrief.pdf |publisher=Federal Highway Administration |accessdate=April 3, 2022 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009232847/https://www.fhwa.dot.gov/interstatebrief2011/2011interstatebrief.pdf |url-status=live }}</ref> ===Washington=== {{Main|Interstate 90 in Washington}} [[File:I-90 as seen from Mount Si.jpg|thumb|right|Aerial view of I-90 near [[North Bend, Washington]]|alt=Aerial view of a divided highway making two turns in a densely forested area.]] The western terminus of I-90 is at an intersection with [[Washington State Route 519|Washington State Route 519]] and 4th Avenue South in the [[Sodo, Seattle|SoDo]] neighborhood of [[Seattle]]. The junction is south of [[Downtown Seattle]], adjacent to the [[Port of Seattle]] and two major sports stadiums, [[Lumen Field]] and [[T-Mobile Park]].<ref>{{cite news |last=Lindblom |first=Mike |date=August 6, 2008 |title=Port clears way for I-90 link to waterfront |page=B2 |url=http://old.seattletimes.com/html/localnews/2008094653_sodo06m.html |work=[[The Seattle Times]] |url-status=dead |archive-url=https://web.archive.org/web/20180616130827/http://old.seattletimes.com/html/localnews/2008094653_sodo06m.html |archive-date=June 16, 2018 |accessdate=November 28, 2021}}</ref> The freeway travels east through an interchange with [[Interstate 5|I-5]] and around [[Beacon Hill, Seattle|Beacon Hill]] before it enters the [[Mount Baker Ridge Tunnel]] alongside the future [[2 Line (Sound Transit)|2 Line]] of the [[Link light rail]] system, set to open in 2025.<ref name="Times-Floating">{{cite news |last=Lee |first=Jessica |date=May 11, 2017 |title=From the archives: A look back at the I-90 floating bridges before light-rail work begins |url=https://www.seattletimes.com/seattle-news/transportation/from-the-archives-a-look-back-on-i-90-floating-bridges-before-light-rail-work-begins/ |work=The Seattle Times |accessdate=November 28, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129064619/https://www.seattletimes.com/seattle-news/transportation/from-the-archives-a-look-back-on-i-90-floating-bridges-before-light-rail-work-begins/ |url-status=live }}</ref><ref>{{cite news |last=Lindblom |first=Mike |date=March 10, 2023 |title=Sound Transit will shell out millions to keep pace with construction delays |url=https://www.seattletimes.com/seattle-news/transportation/sound-transit-will-shell-out-millions-to-keep-pace-with-construction-delays/ |work=The Seattle Times |accessdate=August 23, 2023 |archive-date=August 24, 2023 |archive-url=https://web.archive.org/web/20230824065723/https://www.seattletimes.com/seattle-news/transportation/sound-transit-will-shell-out-millions-to-keep-pace-with-construction-delays/ |url-status=live }}</ref> I-90 emerges from the tunnel on a pair of [[pontoon bridge|floating bridge]]s, among the longest of their kind: the eastbound-only [[Lacey V. Murrow Memorial Bridge]] and the [[Homer M. Hadley Memorial Bridge]], which carries westbound traffic and the future light rail line.<ref name="Times-Floating"/><ref name="WSDOT-Map">{{cite WSDOT map |year=2014 |link=yes |accessdate=November 28, 2021}}</ref> The floating bridges cross [[Lake Washington]] to [[Mercer Island, Washington|Mercer Island]], where I-90 travels through a series of tunnels under {{convert|14|acre|ha}} of parkland, including [[Aubrey Davis Park]].<ref name="Times-90Saga">{{cite news |last=Reynolds |first=Peggy |date=September 9, 1993 |title=Last link of I-90 ends 30-year saga |page=A10 |url=https://archive.seattletimes.com/archive/?date=19930909&slug=1720198 |work=The Seattle Times |access-date=November 28, 2021 |archive-date=October 5, 2021 |archive-url=https://web.archive.org/web/20211005014301/https://archive.seattletimes.com/archive/?date=19930909&slug=1720198 |url-status=live }}</ref><ref>{{cite news |last=Johnston |first=Steve |date=September 9, 1993 |title=Hey Johnston: What's that big concrete thing floating on Lake Washington? |page=1 |url=https://archive.seattletimes.com/archive/?date=19930909&slug=1720153 |work=The Seattle Times |access-date=November 28, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009232848/https://archive.seattletimes.com/archive/?date=19930909&slug=1720153 |url-status=live }}</ref> The freeway continues from the island and enters [[Bellevue, Washington|Bellevue]], the largest city of the [[Eastside (King County, Washington)|Eastside]] region, and intersects [[Interstate 405 (Washington)|I-405]] near [[Factoria, Bellevue|Factoria]]. I-90 then travels along [[Lake Sammamish]] and through [[Issaquah, Washington|Issaquah]] as it leaves the Seattle metropolitan area and ascends into the [[Cascade Range]] on the [[Mountains to Sound Greenway]], a designated [[National Heritage Area]] and [[National Scenic Byway]].<ref>{{cite web |title=Mountains to Sound Greenway National Heritage Area |url=https://www.nps.gov/places/mountains-to-sound-greenway-national-heritage-area.htm |publisher=[[National Park Service]] |accessdate=November 28, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129064619/https://www.nps.gov/places/mountains-to-sound-greenway-national-heritage-area.htm |url-status=live }}</ref> The freeway crosses [[Snoqualmie Pass]], elevation {{convert|3,022|ft|m}}, at the crest of the mountain range near a [[The Summit at Snoqualmie|ski resort]].<ref>{{cite news |last=Hill |first=Craig |date=January 10, 2014 |title=Snoqualmie opening benefits all |page=A1 |work=[[The News Tribune]] |url=https://www.newspapers.com/clip/89735243/snoqualmie-opening-benefits-all/ |via=[[Newspapers.com]] |accessdate=November 28, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129064620/https://www.newspapers.com/clip/89735243/snoqualmie-opening-benefits-all/ |url-status=live }}</ref> From Snoqualmie Pass, I-90 follows the [[Yakima River]] into the [[Kittitas Valley]] and intersects [[Interstate 82|I-82]] in [[Ellensburg, Washington|Ellensburg]] after a brief [[concurrency (road)|concurrency]] with [[U.S. Route 97]] (US 97). The highway crosses the [[Columbia River]] on the [[Vantage Bridge]] and turns northeast to climb the cliffs of the [[Columbia Plateau]] near [[George, Washington|George]]. After traveling east across [[Moses Lake, Washington|Moses Lake]] and the surrounding agricultural region, I-90 begins a long concurrency with [[U.S. Route 395|US 395]] at [[Ritzville, Washington|Ritzville]] as the highways turn northeast towards [[Spokane, Washington|Spokane]]. I-90/US 395 is joined by [[U.S. Route 2|US 2]] through western Spokane, where it intersects [[U.S. Route 195|US 195]]. The freeway crosses downtown Spokane on an elevated viaduct and splits from US 2 and US 395 to continue east across [[Spokane Valley, Washington|Spokane Valley]] towards the Idaho state line.<ref name="WSDOT-Map"/> ===Idaho=== {{Main|Interstate 90 in Idaho}} [[File:I-90 viaduct in Wallace, ID - looking eastbound from 6th Street.jpg|thumb|right|The viaduct bypassing [[Wallace, Idaho]], opened in 1991 as one of the last sections of I-90.|alt=View underheath an elevated highway on the shores of a narrow river flanked by rocks and walls]] I-90 traverses the [[Idaho Panhandle]] region at the north end of the state, where it connects [[Coeur d'Alene, Idaho|Coeur d'Alene]] to communities in the [[Silver Valley (Idaho)|Silver Valley]]. From the Washington state line, the freeway follows the [[Spokane River]] through [[Post Falls, Idaho|Post Falls]] and [[Huetter, Idaho|Huetter]] to the city of Coeur d'Alene, where it intersects [[U.S. Route 95|US 95]], the state's main north–south highway.<ref>{{cite news |last=Titone |first=Julie |date=August 25, 1996 |title=Highway 95: From top to bottom, we explore Idaho's famed roadway |page=E1 |url=https://www.spokesman.com/stories/1996/aug/25/highway-95-from-top-to-bottom-we-explore-idahos/ |work=[[The Spokesman-Review]] |accessdate=November 29, 2021 |archive-date=September 14, 2023 |archive-url=https://web.archive.org/web/20230914044803/https://www.spokesman.com/stories/1996/aug/25/highway-95-from-top-to-bottom-we-explore-idahos/ |url-status=live }}</ref> I-90 then turns southeast to bypass Coeur d'Alene and travel along a series of ridges that face [[Lake Coeur d'Alene]], crossing an arm of the lake on the [[Veterans Memorial Centennial Bridge]].<ref name="google"/><ref>{{cite news |date=February 10, 2017 |title=Bennett Bay Bridge offers best of form and function |url=https://apps.itd.idaho.gov/Apps/MediaManagerMVC/transporter/2017/021017_Trans/021017_VaultBennettBayBr.html |work=The Transporter |publisher=[[Idaho Transportation Department]] |accessdate=November 30, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009232854/https://apps.itd.idaho.gov/Apps/MediaManagerMVC/transporter/2017/021017_Trans/021017_VaultBennettBayBr.html |url-status=live }}</ref> The freeway continues east across [[Fourth of July Summit]] and descends into the Silver Valley, where it follows the [[Coeur d'Alene River]] through several small towns along the historic [[Mullan Road]]. I-90 serves the cities of [[Kellogg, Idaho|Kellogg]] and [[Wallace, Idaho|Wallace]] before it ascends into the [[Bitterroot Range]] and crosses [[Lookout Pass]], which also marks the Montana state line.<ref name="google"/> ===Montana=== {{Main|Interstate 90 in Montana}} [[File:I-90 eastbound at Lookout Pass on the Idaho-Montana border.jpg|thumb|right|I-90 at [[Lookout Pass]] on the Idaho–Montana border|alt=A simple overpass over a divided highway seen from a grassy area on the side of the road]] Montana has the longest section of I-90, at almost {{convert|552|mi|km}}, despite the highway only serving a portion of the state's east–west width.<ref name="FHWA-Routes"/><ref name="MT-Map">{{cite map |year=2021 |title=Montana Official Highway Map |url=https://mdt.mt.gov/travinfo/docs/2021-mt-highway-map.pdf |location=Helena |publisher=[[Montana Department of Transportation]] |scale=Scale not given |accessdate=November 29, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201004352/https://mdt.mt.gov/travinfo/docs/2021-mt-highway-map.pdf |url-status=live }}</ref> It descends from Lookout Pass along the [[St. Regis River (Montana)|St. Regis]] and [[Clark Fork River|Clark Fork]] rivers between the foothills of the Bitteroot Range and [[Coeur d'Alene Mountains]]. The freeway travels east through the [[Alberton, Montana|Alberton Gorge]] and crosses the Clark Fork River several times before it reaches the head of the [[Missoula Valley]].<ref>{{cite news |last=Gadbow |first=Daryl |date=July 22, 2004 |title=Gorgeous Gorge |page=C1 |work=[[The Missoulian]] |url=https://www.newspapers.com/clip/89736594/gorgeous-gorge/ |via=Newspapers.com |accessdate=November 29, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129085211/https://www.newspapers.com/clip/89736594/gorgeous-gorge/ |url-status=live }}</ref> After a short concurrency with [[U.S. Route 93|US 93]], I-90 runs along the north side of [[Missoula, Montana|Missoula]] and joins [[U.S. Route 12|US 12]] to continue southeast along the foothills of the [[Garnet Range]] and [[Sapphire Mountains]].<ref name="MT-Map"/> After it splits from US 12 in [[Garrison, Montana|Garrison]], the freeway turns south to traverse the [[Deer Lodge Valley]]. It then turns east to serve [[Butte, Montana|Butte]], where it overlaps with [[Interstate 15|I-15]] for {{convert|8|mi|km|spell=in}} and intersects [[Interstate 115|I-115]]. I-90 then continues southeast and crosses the [[Rocky Mountains]] and [[Continental Divide of the Americas|Continental Divide]] at [[Homestake Pass]], which is the highest point on the entire Interstate at {{convert|6329|ft|m}}.<ref>{{cite news |last=Smith |first=Mike |date=September 22, 2016 |title=Slower speed limit in works for most of Homestake Pass |page=A1 |work=[[The Montana Standard]] |url=https://www.newspapers.com/clip/89736816/slower-speed-limit-in-works-for-most-of/ |via=Newspapers.com |accessdate=November 29, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129085211/https://www.newspapers.com/clip/89736816/slower-speed-limit-in-works-for-most-of/ |url-status=live }}</ref> The freeway travels east across the [[Jefferson River|Jefferson Valley]] and passes the headwaters of the [[Missouri River]] near [[Three Forks, Montana|Three Forks]]. It then enters the [[Gallatin Valley]].<ref name="MT-Map"/><ref>{{cite news |last=Jokerst |first=Gail |date=June 10, 2001 |title=Headwaters haven: Three Forks a quaint slice of Montana's history |page=H4 |work=The Spokesman-Review |url=https://www.newspapers.com/clip/89737271/headwaters-haven-three-forks-a-quaint/ |via=Newspapers.com |accessdate=November 29, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129091500/https://www.newspapers.com/clip/89737271/headwaters-haven-three-forks-a-quaint/ |url-status=live }}</ref> I-90 travels around [[Bozeman, Montana|Bozeman]], where it is joined by [[U.S. Route 191|US 191]], and crosses [[Bozeman Pass]] between the [[Bridger Mountains (Montana)|Bridger]] and [[Gallatin Range|Gallatin]] mountains. At the east end of the mountains, the freeway begins to follow the [[Yellowstone River]] and is briefly concurrent with [[U.S. Route 89|US 89]], which serves [[Yellowstone National Park]], and splits from US 191 at [[Big Timber, Montana|Big Timber]]. I-90 continues along the Yellowstone River through [[Billings, Montana|Billings]], overlapping with [[U.S. Route 87|US 87]] and [[U.S. Route 212|US 212]], until it reaches [[Lockwood, Montana|Lockwood]], the western terminus of [[Interstate 94|I-94]]. The freeways split and I-90 continues east across the [[Bighorn Basin]] before it turns south near [[Hardin, Montana|Hardin]] to follow the [[Little Bighorn River]] into the [[Crow Indian Reservation]]. The highway passes [[Little Bighorn Battlefield National Monument|the site]] of the [[Battle of the Little Bighorn]] near [[Crow Agency, Montana|Crow Agency]] and continues south along the river and the [[Wolf Mountains]] into Wyoming.<ref name="MT-Map"/><ref>{{cite news |last=Pyle |first=Richard |date=August 17, 2003 |title=The victors at Little Bighorn |page=N5 |work=[[The Philadelphia Inquirer]] |url=https://www.newspapers.com/clip/89737083/the-victors-at-little-bighorn/ |via=Newspapers.com |accessdate=November 29, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129085212/https://www.newspapers.com/clip/89737083/the-victors-at-little-bighorn/ |url-status=live }}</ref> From 1995 to 1999, there was no numbered daytime [[Speed limits in the United States|speed limit]] on rural highways in Montana, including I-90.<ref>{{cite news |last=Whitely |first=Peyton |date=December 10, 1995 |title=With a roar, Montana drops day speed limit |page=A1 |url=https://archive.seattletimes.com/archive/?date=19951210&slug=2157057 |work=The Seattle Times |accessdate=November 29, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129090327/https://archive.seattletimes.com/archive/?date=19951210&slug=2157057 |url-status=live }}</ref> The speed limit was simply defined as "reasonable and proper" as determined on a case-by-case basis by the [[Montana Highway Patrol]] until the [[Montana Supreme Court]] ruled it was unconstitutional.<ref>{{cite news |last=Robbins |first=Jim |date=December 25, 1998 |title=Montana's Speed Limit of ?? M.P.H. Is Overturned as Too Vague |page=A20 |url=https://www.nytimes.com/1998/12/25/us/montana-s-speed-limit-of-mph-is-overturned-as-too-vague.html |work=[[The New York Times]] |accessdate=November 29, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129090327/https://www.nytimes.com/1998/12/25/us/montana-s-speed-limit-of-mph-is-overturned-as-too-vague.html |url-status=live }}</ref> The maximum daytime speed limit in Montana was initially set at {{convert|75|mph|km/h|abbr=on|round=5}} in 1999 and was later raised to {{convert|80|mph|km/h|abbr=on|round=5}} in 2015.<ref>{{cite news |last=Carter |first=Troy |date=October 1, 1995 |title=Montana interstate speed limit raised to 80 mph—mostly |url=https://www.bozemandailychronicle.com/news/montana-interstate-speed-limit-raised-to-80-mph-mostly/article_7dee866c-c7ca-5002-aee3-72c6335fd1be.html |work=[[Bozeman Daily Chronicle]] |url-status=dead |archive-url=https://web.archive.org/web/20211129090331/https://www.bozemandailychronicle.com/news/montana-interstate-speed-limit-raised-to-80-mph-mostly/article_7dee866c-c7ca-5002-aee3-72c6335fd1be.html |archive-date=November 29, 2021 |accessdate=November 29, 2021}}</ref> ===Wyoming=== {{Main|Interstate 90 in Wyoming}} [[File:Sheridan.JPG|thumb|View of southern [[Sheridan, Wyoming]], from I-90|alt=A multi-story building named the "Mill Inn" and tall grain elevator, seen from an elevated vantage point]] I-90 serves a portion of northeastern Wyoming that is primarily rural.<ref>{{cite news |date=August 21, 2015 |title=Speed limit upped to 80 mph on part of I-90 in NE Wyoming |url=https://www.argusleader.com/story/news/2015/08/21/speed-limit-upped-mph-part-ne-wyoming/32103899/ |work=[[Argus Leader]] |location=Sioux Falls |agency=Associated Press |accessdate=November 29, 2021}}</ref> The freeway, briefly concurrent to [[U.S. Route 14|US 14]], travels southeast along a series of creeks to [[Sheridan, Wyoming|Sheridan]] in the northeastern foothills of the [[Bighorn Mountains]]. I-90 and US 87 split in Sheridan and travel parallel to each other to [[Fort Phil Kearny]], where they rejoin and continue south past [[Lake Desmet]] to [[Buffalo, Wyoming|Buffalo]]. The highways split again near Buffalo at a junction with [[Interstate 25|I-25]], which overlaps with US 87 to [[Casper, Wyoming|Casper]].<ref name="WY-Map">{{cite map |author=Public Affairs Office |year=2011 |title=Wyoming Highway Map |url=https://ss-usa.s3.amazonaws.com/c/308475559/media/77046075a7b15c06968218036445366/Wyoming%20map%20side_v2.pdf |scale=1 inch = approx. 18 miles |location=Cheyenne |publisher=[[Wyoming Department of Transportation]] |via=[[Wyoming Office of Tourism]] |access-date=November 29, 2021 |archive-date=October 3, 2021 |archive-url=https://web.archive.org/web/20211003035101/https://ss-usa.s3.amazonaws.com/c/308475559/media/77046075a7b15c06968218036445366/Wyoming%20map%20side_v2.pdf |url-status=live }}</ref> From Buffalo, the highway turns east to cross the [[Powder River Basin]], a region with several large coal mines.<ref>{{cite news |last=Learn |first=Scott |date=July 1, 2012 |title=Coal clash: The Powder River Basin, where coal is king |url=https://www.oregonlive.com/environment/2012/06/coal_clash_out_of_the_gigantic.html |work=[[The Oregonian]] |accessdate=November 29, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129094519/https://www.oregonlive.com/environment/2012/06/coal_clash_out_of_the_gigantic.html |url-status=live }}</ref> I-90 then reaches [[Gillette, Wyoming|Gillette]], where it begins a concurrency with US 14 and [[U.S. Route 16|US 16]] to a three-way split in [[Moorcroft, Wyoming|Moorcroft]]. The freeway continues into the [[Bear Lodge Mountains]] (part of the [[Black Hills]]) and is rejoined in [[Sundance, Wyoming|Sundance]] by US 14, which looped north to serve the [[Devils Tower]].<ref>{{cite news |last=Eldredge |first=Kay |date=August 29, 1982 |title=The Spell of Devils Tower |at=sec. 10, p. 25 |url=https://www.nytimes.com/1982/08/29/travel/the-spell-of-devils-tower.html |work=The New York Times |accessdate=November 29, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129102103/https://www.nytimes.com/1982/08/29/travel/the-spell-of-devils-tower.html |url-status=live }}</ref> I-90/US 14 then continues northeast to [[Beulah, Wyoming|Beulah]], where it enters [[South Dakota]].<ref name="WY-Map"/> ===South Dakota=== {{Main|Interstate 90 in South Dakota}} [[File:CHAMBERLAIN INTERSTATE BRIDGE.jpg|thumb|right|The [[Lewis and Clark Memorial Bridge]], which carries I-90 over the [[Missouri River]] near [[Chamberlain, South Dakota]]|alt=Distant view of a simple highway bridge crossing a wide river surrounded by rolling hills free of vegetation]] I-90/US 14 enters South Dakota near [[Spearfish, South Dakota|Spearfish]] and travels east through prairie land, where it is briefly concurrent with [[U.S. Route 85|US 85]]. Beyond [[Sturgis, South Dakota|Sturgis]], the freeway turns south and follows the edge of the Black Hills to [[Rapid City, South Dakota|Rapid City]], the gateway to [[Mount Rushmore]].<ref>{{cite news |last=Henry |first=Neil |date=January 3, 1987 |title=Hush of the quiet season descends on the Black Hills |url=https://www.washingtonpost.com/archive/politics/1987/01/03/hush-of-the-quiet-season-descends-on-the-black-hills/00e14802-109a-4e1e-974e-90b2b5cc838e/ |newspaper=[[The Washington Post]] |accessdate=November 29, 2021}}</ref> It then skirts the northern edge of Rapid City, which is served by spur route [[Interstate 190 (South Dakota)|I-190]], and passes [[Ellsworth Air Force Base]] while it continues east across the plains. I-90 splits from US 14 near [[Wall, South Dakota|Wall]], home to the [[Wall Drug]] roadside attraction and located northeast of [[Badlands National Park]].<ref>{{cite news |last=Gordon |first=Kindra |date=June 11, 2006 |title=Get away from it all |page=D1 |work=[[Rapid City Journal]] |url=https://www.newspapers.com/clip/89737914/get-away-from-it-all/ |via=Newspapers.com |accessdate=November 29, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129102613/https://www.newspapers.com/clip/89737914/get-away-from-it-all/ |url-status=live }}</ref><ref name="SD-Map">{{cite map |year=2019 |title=State Highway Map of South Dakota |scale=1 inch = approx. 15.43 miles |url=https://dot.sd.gov/media/documents/CADD-Mapping/State/SD-Map_medium.pdf |location=Pierre |publisher=[[South Dakota Department of Transportation]] |accessdate=November 29, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009232847/https://dot.sd.gov/media/documents/CADD-Mapping/State/SD-Map_medium.pdf |url-status=live }}</ref> The freeway travels southeast into the [[Buffalo Gap National Grassland]] and also passes a pair of decommissioned [[missile silo]]s that form the [[Minuteman Missile National Historic Site]].<ref>{{cite map |year=2019 |title=Motor Vehicle Use Map: Buffalo Gap National Grassland, South Dakota |url=https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fseprd701419.pdf |scale=Scale not given |location=Washington, D.C. |publisher=[[United States Forest Service]] |accessdate=November 29, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129102615/https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fseprd701419.pdf |url-status=live }}</ref><ref>{{cite news |last=Bures |first=Frank |date=March 21, 2013 |title=Spring Travel Issue: Cold War-era tourist sites feature weapons of mass attraction |url=https://www.washingtonpost.com/blogs/liveblog/wp/2013/03/21/magazine-spring-travel-issue-cold-war-era-tourist-sites-feature-weapons-of-mass-attraction/ |newspaper=The Washington Post |accessdate=November 29, 2021}}</ref> I-90 continues east along the top of a plateau that faces the [[White River (Missouri River tributary)|White River]] and passes near [[Kadoka, South Dakota|Kadoka]] and [[Murdo, South Dakota|Murdo]]. [[U.S. Route 83|US 83]] briefly joins the highway from Murdo to [[Vivian, South Dakota|Vivian]], where it splits off to serve the state capital of [[Pierre, South Dakota|Pierre]].<ref name="SD-Map"/> It then crosses the Missouri River on the [[Lewis and Clark Memorial Bridge]] near [[Chamberlain, South Dakota|Chamberlain]] and passes a [[rest area]] which overlooks the river and includes the {{convert|50|ft|m|adj=mid}} ''[[Dignity (statue)|Dignity]]'' statue.<ref name="KELO">{{cite news |date=June 15, 2021 |title=From cowboys to missiles: Places to stop this summer on your I-90 road trip |url=https://www.keloland.com/keloland-com-original/from-cowboys-to-missiles-places-to-stop-this-summer-on-your-i-90-road-trip/ |publisher=[[KELO-TV|Keloland.com]] |accessdate=November 29, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009232850/https://www.keloland.com/keloland-com-original/from-cowboys-to-missiles-places-to-stop-this-summer-on-your-i-90-road-trip/ |url-status=live }}</ref> From Chamberlain, I-90 continues east across the plains and past several small towns near the city of [[Mitchell, South Dakota|Mitchell]]. It then reaches the [[Sioux Falls, South Dakota|Sioux Falls]] area, where it bypasses the city to the north and intersects [[Interstate 29|I-29]] and [[Interstate 229 (South Dakota)|I-229]]. I-90 leaves Sioux Falls and crosses into [[Minnesota]] near [[Brandon, South Dakota|Brandon]].<ref name="SD-Map"/> ===Minnesota=== {{Main|Interstate 90 in Minnesota}} [[File:I90GoldenSpikeRestAreaBlueEarthMN.jpg|thumb|right|[[Historic marker]] to commemorate the completion of I-90 in 1978 near [[Blue Earth, Minnesota]]|alt=A park with several trees and picnic tables behind a plaque titled "A Golden Dedication for I-90"]] I-90 crosses the southern portion of Minnesota and carries unsigned [[Legislative route (Minnesota)|Legislative Route 391]] across the state.<ref>{{cite web |year=2021 |title=Section 161.12: Additional Routes Added; Federal Aid |url=https://www.revisor.mn.gov/statutes/cite/161.12 |work=[[Minnesota Statutes]] |publisher=Minnesota Revisor's Office |accessdate=November 29, 2021 |archive-date=November 30, 2021 |archive-url=https://web.archive.org/web/20211130051250/https://www.revisor.mn.gov/statutes/cite/161.12 |url-status=live }}</ref> From the South Dakota border near [[Beaver Creek, Minnesota|Beaver Creek]] to [[Albert Lea, Minnesota|Albert Lea]], the freeway travels east across farmland and towns in the plains and rolling hills of the [[Buffalo Ridge]]. It also intersects several north–south highways, including [[U.S. Route 75|US 75]] in [[Luverne, Minnesota|Luverne]], [[U.S. Route 59|US 59]] in [[Worthington, Minnesota|Worthington]], [[U.S. Route 71|US 71]] in [[Jackson, Minnesota|Jackson]], and [[U.S. Route 169|US 169]] in [[Blue Earth, Minnesota|Blue Earth]]. I-90 travels around the northern outskirts of Albert Lea and intersects [[Interstate 35|I-35]] northeast of the city. It then reaches [[Austin, Minnesota|Austin]] and a brief concurrency with [[U.S. Route 218|US 218]].<ref name="MN-Map">{{cite map |year=2021 |title=Minnesota 2021–2022 Official Highway Map |url=https://www.dot.state.mn.us/statemap/2019/Frontside_2021.pdf |scale=Scale not given |location=St. Paul |publisher=[[Minnesota Department of Transportation]] |accessdate=November 29, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129111357/http://www.dot.state.mn.us/statemap/2019/Frontside_2021.pdf |url-status=live }}</ref> From Austin, the freeway turns northeast to head towards [[Rochester, Minnesota|Rochester]], which it bypasses to the south and intersects [[U.S. Route 63|US 63]] and [[U.S. Route 52|US 52]]. I-90 continues east into the hilly [[Driftless Area]] and descends from the bluffs that overlook [[Lake Onalaska]] on the [[Mississippi River]].<ref>{{cite news |last=Stoll |first=Mike |date=May 26, 2017 |title=I-90 and the face of Mower County |url=https://www.austindailyherald.com/2017/05/i-90-and-the-face-of-mower-county/ |work=[[Austin Daily Herald]] |accessdate=November 29, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009232849/https://www.austindailyherald.com/2017/05/i-90-and-the-face-of-mower-county/ |url-status=live }}</ref> It turns southeast at [[Dakota, Minnesota|Dakota]] and is joined by US 14 until the highways split near [[La Crescent, Minnesota|La Crescent]]. I-90 turns east before it reaches La Crescent, where it crosses the Mississippi River on the [[Dresbach Bridge]] into Wisconsin.<ref name="MN-Map"/><ref name="LCT-Bridge">{{cite news |last=Hubbuch |first=Chris |date=October 21, 2016 |title=Minnesota, Wisconsin celebrate completion of I-90 bridge |url=https://lacrossetribune.com/news/local/minnesota-wisconsin-celebrate-completion-of-i-90-bridge/article_4c810c59-8678-56cb-a34a-e27ef81e07b2.html |work=[[La Crosse Tribune]] |url-access=subscription |accessdate=November 29, 2021 |archive-date=November 30, 2021 |archive-url=https://web.archive.org/web/20211130051250/https://lacrossetribune.com/news/local/minnesota-wisconsin-celebrate-completion-of-i-90-bridge/article_4c810c59-8678-56cb-a34a-e27ef81e07b2.html |url-status=live }}</ref> ===Wisconsin=== {{Main|Interstate 90 in Wisconsin}} [[File:I 90 bridge La Crosse.jpg|thumb|upright=0.767|[[I-90 Mississippi River Bridge|I-90 Mississippi River]] bridge near [[La Crosse, Wisconsin|La Crosse]]]] I-90 enters Wisconsin near [[La Crosse, Wisconsin|La Crosse]] and bisects [[French Island, Wisconsin|French Island]] before it reaches [[Onalaska, Wisconsin|Onalaska]]. This section is briefly concurrent to [[U.S. Route 53|US 53]] between La Crosse and Onalaska. The freeway travels east, generally along the [[La Crosse River]], through several towns and [[Fort McCoy, Wisconsin|Fort McCoy]] before it reaches a junction with I-94 in [[Tomah, Wisconsin|Tomah]]. The two Interstates join at Tomah and travel southeast along the edge of the hills of the [[Western Upland]], following the [[Lemonweir River|Lemonweir]] and [[Wisconsin River|Wisconsin]] rivers. It passes [[Wisconsin Dells, Wisconsin|Wisconsin Dells]], situated on the [[Dells of the Wisconsin River|gorge of the same name]] and home to several [[water park]]s and [[theme park]]s.<ref>{{cite news |last=Noel |first=Josh |date=June 14, 2016 |title=A first-timer from Chicago dives into the Wisconsin Dells |url=https://www.chicagotribune.com/travel/ct-trav-0626-dells-first-timer-20160613-story.html |work=[[Chicago Tribune]] |accessdate=November 29, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009232850/https://www.chicagotribune.com/travel/ct-trav-0626-dells-first-timer-20160613-story.html |url-status=live }}</ref><ref name="WI-Map">{{cite map |year=2019 |title=Wisconsin 2019–2020 State Highway Map |scale=1 inch = approx. 13 miles |url=https://wisconsindot.gov/Documents/travel/road/hwy-maps/statemap.pdf |location=Madison |publisher=[[Wisconsin Department of Transportation]] |accessdate=November 29, 2021 |archive-date=January 29, 2022 |archive-url=https://web.archive.org/web/20220129024329/https://wisconsindot.gov/Documents/travel/road/hwy-maps/statemap.pdf |url-status=live }}</ref> The freeway travels east from Wisconsin Dells to the [[Portage, Wisconsin|Portage]] area, where [[Interstate 39|I-39]] begins its concurrency with I-90/I-94. The highway then crosses the Wisconsin River and travels south towards [[Madison, Wisconsin|Madison]], where it forms an eastern bypass of the city. East of Madison, I-94 separates from I-39/I-90, which continues southeast through [[Edgerton, Wisconsin|Edgerton]] and [[Janesville, Wisconsin|Janesville]]. The highway turns south and enters [[Beloit, Wisconsin|Beloit]], where it intersects [[Interstate 43|I-43]] and crosses into [[Illinois]].<ref name="WI-Map"/> ===Illinois=== {{Main|Interstate 90 in Illinois}} [[File:Highway Isometric.jpg|thumb|right|The [[Kennedy Expressway]], looking southeast towards the [[Chicago]] skyline|alt=View of the Chicago skyline, including the prominent Willis Tower, with a divided highway leading towards it]] I-90 uses several sections of the [[Illinois Tollway]] system as it traverses the [[Northern Illinois|northeastern corner]] of the state, primarily in the [[Chicago metropolitan area]]. It enters the state from Beloit, Wisconsin, and remains concurrent to I-39 and [[U.S. Route 51|US 51]] on the [[Jane Addams Memorial Tollway]] through the eastern outskirts of [[Rockford, Illinois|Rockford]], where the highways split off. I-90 continues on the tollway as it follows [[U.S. Route 20|US 20]] southeast through [[Belvidere, Illinois|Belvidere]] and [[Elgin, Illinois|Elgin]] in the [[Fox Valley (Illinois)|Fox Valley]].<ref name="ILTollway-Map">{{cite map |date=January 2020 |title=Illinois Tollway 2020 Complimentary Map |at=[https://www.illinoistollway.com/documents/20184/145046/TollwayMap_01_29_2020-SideB.pdf Chicago and Vicinity] inset |url=https://www.illinoistollway.com/documents/20184/145046/TollwayMap_01_22_2020-SideA.pdf |scale=Scale not given |location=Downers Grove |publisher=[[Illinois State Toll Highway Authority]] |accessdate=November 29, 2021 |archive-date=November 30, 2021 |archive-url=https://web.archive.org/web/20211130073626/https://www.illinoistollway.com/documents/20184/145046/TollwayMap_01_22_2020-SideA.pdf |url-status=live }}</ref> The tollway cuts through the northwestern suburbs of Chicago, where it intersects [[Interstate 290 (Illinois)|I-290]] in [[Schaumburg, Illinois|Schaumburg]] and passes the north side of [[O'Hare International Airport]]. On the east side of the airport in [[Rosemont, Illinois|Rosemont]], I-90 intersects [[Interstate 294|I-294]] and [[Interstate 190 (Illinois)|I-190]], the latter of which serves the airport's passenger terminals and marks the end of the tollway.<ref name="ILTollway-Map"/> The freeway, now named the [[Kennedy Expressway]], travels through northwestern Chicago, where the [[Blue Line (CTA)|Blue Line]] of the [[Chicago "L"|"L" rapid transit system]] runs in the median and serves several stops.<ref name="Tribune-BlueLine">{{cite news |last=Hilkevitch |first=Jon |date=December 5, 2013 |title=O'Hare Blue Line to stay open during 4-year renovation |url=https://www.chicagotribune.com/news/ct-xpm-2013-12-05-chi-4year-492m-blue-line-project-to-be-announced-today-20131205-story.html |work=Chicago Tribune |accessdate=November 29, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009230610/https://www.chicagotribune.com/ |url-status=live }}</ref> I-90 turns southeast and is rejoined by I-94 in [[Irving Park, Chicago|Irving Park]], where it gains a set of [[reversible lane|reversible express lanes]] that travel for {{convert|6.2|mi|km}} toward the [[Near West Side, Chicago|Near West Side]].<ref>{{cite news |last=Hilkevitch |first=Jon |date=August 22, 2011 |title=Drivers frustrated by Kennedy express lanes |url=https://www.chicagotribune.com/autos/ct-xpm-2011-08-22-ct-met-getting-around-0822-20110822-story.html |at=sec. 1, p. 4 |work=Chicago Tribune |accessdate=November 29, 2021 |archive-date=November 30, 2021 |archive-url=https://web.archive.org/web/20211130071337/https://www.chicagotribune.com/autos/ct-xpm-2011-08-22-ct-met-getting-around-0822-20110822-story.html |url-status=live }}</ref> The Kennedy Expressway travels south through the Near West Side, opposite the [[Chicago River]] from the [[Chicago Loop]] (the city's central business district), and intersects I-290 again at the [[Jane Byrne Interchange]].<ref>{{cite news |last=Wronski |first=Richard |date=November 23, 2015 |title=Kennedy Expressway tops new list of nation's most congested highways |url=https://www.chicagotribune.com/news/ct-kennedy-congestion-met-20151123-story.html |work=Chicago Tribune |accessdate=November 29, 2021 |archive-date=November 30, 2021 |archive-url=https://web.archive.org/web/20211130071339/https://www.chicagotribune.com/news/ct-kennedy-congestion-met-20151123-story.html |url-status=live }}</ref> The freeway continues onto the [[Dan Ryan Expressway]] and crosses the Chicago River near [[Chinatown, Chicago|Chinatown]] and an interchange with [[Interstate 55|I-55]]. The Dan Ryan is the widest section of I-90, at 12 through lanes, and is split between [[Local–express lanes|local and express lanes]].<ref>{{cite web |date=July 27, 2010 |title=Urban Highways with the Most Lanes |url=https://www.fhwa.dot.gov/policyinformation/tables/01.pdf |publisher=Federal Highway Administration |access-date=December 3, 2021 |archive-date=January 6, 2022 |archive-url=https://web.archive.org/web/20220106214052/http://www.fhwa.dot.gov/policyinformation/tables/01.pdf |url-status=live }}</ref><ref>{{cite news |last=Hilkevitch |first=Jon |date=March 26, 2006 |title=Buckle up, it looks like a long ride |at=sec. 1, p. 10 |work=Chicago Tribune |url=https://www.newspapers.com/clip/89956956/buckle-up-it-looks-like-a-long-ride/ |via=Newspapers.com |accessdate=December 3, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009232850/https://www.newspapers.com/clip/89956956/buckle-up-it-looks-like-a-long-ride/ |url-status=live }}</ref> I-90/I-94 is joined by the [[Red Line (CTA)|"L" Red Line]] in the median of the expressway through the city's [[South Side, Chicago|South Side]],<ref name="Tribune-BlueLine"/> where it passes [[Rate Field]], the [[Illinois Institute of Technology]] campus, and [[Washington Park (Chicago park)|Washington Park]].<ref>{{cite news |last=Channick |first=Robert |date=January 31, 2017 |title=IIT sells oldest building for redevelopment |url=https://www.chicagotribune.com/business/ct-iit-redevelop-historic-building-0201-biz-20170131-story.html |work=Chicago Tribune |accessdate=November 29, 2021 |archive-date=November 30, 2021 |archive-url=https://web.archive.org/web/20211130071922/https://www.chicagotribune.com/business/ct-iit-redevelop-historic-building-0201-biz-20170131-story.html |url-status=live }}</ref> I-90 splits from the Dan Ryan Expressway in [[Englewood, Chicago|Englewood]] and turns southeast onto the tolled [[Chicago Skyway]]. The tolled Skyway travels towards the Indiana state line, which the freeway crosses near the [[Calumet River]] in the [[East Side, Chicago|East Side]].<ref name="google"/><ref name="ILTollway-Map"/> ===Indiana=== {{Main|Indiana Toll Road}} [[File:Aetna i90.jpg|right|thumb|A section of the [[Indiana Toll Road]] (carrying I-90) in Gary, Indiana|alt=An overhead view of a divided highway with six lanes and a raised median barrier traveling through a rural area]] The entirety of I-90 within Indiana is concurrent with the [[Indiana Toll Road]], which crosses the state's northern fringe and is mostly shared with [[Interstate 80|I-80]].<ref name="IN-Map">{{cite map |year=2021 |title=Indiana Roadway Map 2021 |url=https://www.in.gov/indot/files/2021_Roadway_Map-NEW-SIZEuseHQextendededit.pdf |publisher=[[Indiana Department of Transportation]] |scale=Scale not given |location=Indianapolis |accessdate=November 30, 2021 |archive-date=November 2, 2021 |archive-url=https://web.archive.org/web/20211102152650/https://www.in.gov/indot/files/2021_Roadway_Map-NEW-SIZEuseHQextendededit.pdf |url-status=live }}</ref> From the Illinois state line, the tollway travels south through [[Hammond, Indiana|Hammond]] and turns east to follow the [[Grand Calumet River]] through northern [[Gary, Indiana|Gary]], where it intersects [[U.S. Route 41|US 41]] and US 12. I-90 then crosses [[Interstate 65|I-65]] in eastern Gary and I-94 in [[Lake Station, Indiana|Lake Station]], where it begins a concurrency with I-80.<ref name="IN-Map"/> I-94 travels northeast near the [[Lake Michigan]] shoreline from Lake Station to [[Michigan City, Indiana|Michigan City]], while the Indiana Toll Road (I-80/I-90) follows it to the south. The tollway then moves closer to the [[Michigan]]–Indiana state line and turns east, passing through the northern outskirts of [[South Bend, Indiana|South Bend]] and [[Elkhart, Indiana|Elkhart]]. In South Bend, it intersects [[U.S. Route 31|US 31]] and passes near the [[University of Notre Dame]]. I-80/I-90 travels parallel to the state line until it reaches an interchange with [[Interstate 69|I-69]] near [[Fremont, Indiana|Fremont]], where it turns southeast. The tollway then turns east and crosses the Ohio state line near [[Angola, Indiana|Angola]].<ref name="IN-Map"/> ===Ohio=== {{Main|Interstate 90 in Ohio}} {{See also|Ohio Turnpike}} [[File:Ohio Turnpike exit 142.jpg|thumb|right|Aerial view of [[Ohio Turnpike]] exit 142, showing the connector between I-90 and [[Interstate 80|I-80]] on the turnpike|alt=Aerial view of a divided highway and several ramps that lead into a toll plaza]] At the state line near [[Montpelier, Ohio|Montpelier]], I-80/I-90 transitions from the Indiana Toll Road to the [[Ohio Turnpike]], which crosses northern Ohio. The highway continues east around several rural towns as it approaches the [[Toledo, Ohio|Toledo]] area. The turnpike crosses under [[Interstate 475 (Ohio)|I-475]] in [[Maumee, Ohio|Maumee]] without an interchange; access to I-475 is instead provided through a nearby junction with US 20. I-80/I-90 then continues southeast across the [[Maumee River]] to [[Rossford, Ohio|Rossford]] on the southern outskirts of Toledo, where it intersects [[Interstate 75|I-75]].<ref name="OH-Map">{{cite map |author=ODOT Office of Technical Services |date=April 2019 |title=Ohio Official Transportation Map |scale=1 inch = 11 miles |url=https://www.transportation.ohio.gov/static/About/maps/2019StateMap-Back.pdf |at=[https://www.transportation.ohio.gov/static/About/maps/2019StateMap-Front.pdf Cleveland] inset |location=Columbus |publisher=[[Ohio Department of Transportation]] |accessdate=November 30, 2021 |archive-date=July 14, 2021 |archive-url=https://web.archive.org/web/20210714191632/https://www.transportation.ohio.gov/static/About/maps/2019StateMap-Back.pdf |url-status=live }}</ref> The turnpike travels southeast through a rural area near the southwest shore of [[Lake Erie]], where it passes the cities of [[Fremont, Ohio|Fremont]] and [[Sandusky, Ohio|Sandusky]]. Near Norwalk, the highway turns northeast to follow [[Ohio State Route 2|State Route 2]] (SR 2) and heads to [[Elyria, Ohio|Elyria]], where I-90 splits from I-80 (which remains on the turnpike). The freeway then merges with SR 2 and continues northeast through the lakeshore suburbs west of [[Cleveland, Ohio|Cleveland]], including [[Rocky River, Ohio|Rocky River]] and [[Lakewood, Ohio|Lakewood]]. I-90 and SR 2 separate after crossing the [[Rocky River (Ohio)|Rocky River]] and travel parallel to each other as they enter Cleveland. I-90 continues through the southwestern residential neighborhoods of Cleveland and reaches a junction with [[Interstate 71|I-71]] and [[Interstate 490 (Ohio)|I-490]] in [[Tremont, Cleveland|Tremont]], where it turns north.<ref name="OH-Map"/> From Tremont, I-90 turns north onto the [[Innerbelt Freeway]] and crosses the [[Cuyahoga River]] into [[Downtown Cleveland]] on the [[George V. Voinovich Bridges]].<ref>{{cite news |last=Grant |first=Alison |date=November 8, 2013 |title=Inner Belt Bridge brings crowd of onlookers with cameras, babies in strollers |url=https://www.cleveland.com/metro/2013/11/inner_belt_bridge_brings_crowd.html |work=[[The Plain Dealer]] |accessdate=November 30, 2021 |archive-date=November 30, 2021 |archive-url=https://web.archive.org/web/20211130094152/https://www.cleveland.com/metro/2013/11/inner_belt_bridge_brings_crowd.html |url-status=live }}</ref> The Innerbelt skirts the south side of Downtown Cleveland, where it intersects [[Interstate 77|I-77]] near [[Progressive Field]] and turns north to bisect the [[Goodrich–Kirtland Park]] neighborhood.<ref name="google"/> Near [[Cleveland Burke Lakefront Airport]], the freeway makes a sharp, 90-degree turn (nicknamed "[[Dead Man's Curve]]" for its frequent crashes<ref>{{cite news |last=Naymik |first=Mark |date=August 3, 2021 |title=Cleveland's Dead Man's Curve not getting straightened any time soon: Mark Naymik Reports |url=https://www.wkyc.com/article/news/local/cleveland/cleveland-dead-mans-curve-not-getting-straightened-any-time-soon/95-2e73c304-f903-4045-9e9c-3a8159156344 |publisher=[[WKYC]] |accessdate=November 30, 2021}}</ref>) and rejoins SR 2 on the [[Cleveland Memorial Shoreway]] until they split again in [[Euclid, Ohio|Euclid]]. I-90 briefly turns southeast but resumes its northeastern route after a junction with [[Interstate 271|I-271]] in [[Willoughby Hills, Ohio|Willoughby Hills]]. The freeway travels parallel to the Lake Erie shoreline through farmland and exurban towns and crosses into Pennsylvania near [[Conneaut, Ohio|Conneaut]].<ref name="OH-Map"/> ===Pennsylvania=== {{main|Interstate 90 in Pennsylvania}} Within Pennsylvania, I-90 is non-tolled and generally travels northeast around several communities on the Lake Erie shoreline and remains entirely in [[Erie County, Pennsylvania|Erie County]].<ref name="PA-Map">{{cite map |author=PennDOT Bureau of Planning and Research |year=2020 |title=Pennsylvania Tourism and Transportation Map |url=https://gis.penndot.gov/BPR_PDF_FILES/MAPS/Statewide/otm/otmplot_web.pdf |scale=Scale not given |location=Harrisburg |publisher=[[Pennsylvania Department of Transportation]] |accessdate=November 30, 2021 |archive-date=November 30, 2021 |archive-url=https://web.archive.org/web/20211130100700/https://gis.penndot.gov/BPR_PDF_FILES/MAPS/Statewide/otm/otmplot_web.pdf |url-status=live }}</ref> It enters the state in [[Springfield Township, Erie County, Pennsylvania|Springfield Township]] and passes through rural areas along the lake shore, parallel to US 20 and the [[Pennsylvania Route 5|Lake Road]]. The freeway then travels through the southern outskirts of [[Erie, Pennsylvania|Erie]], where it intersects [[Interstate 79|I-79]] and [[U.S. Route 19|US 19]]. I-90 returns to the rural areas of northeastern Erie County and intersects [[Interstate 86 (Pennsylvania–New York)|I-86]] before it reaches the New York state line near the borough of [[North East, Pennsylvania|North East]].<ref name="PA-Map"/> At {{convert|46|mi|km}}, the Pennsylvania section is I-90's shortest within a single state.<ref name="FHWA-Facts"/> ===New York=== {{Main|Interstate 90 in New York}} {{See also|New York State Thruway}} [[File:I-90 East - Exit 27 - NY30 One Mile (49175740706).jpg|thumb|right|The [[New York State Thruway]] near [[Amsterdam, New York|Amsterdam]]|alt=A divided highway with two lanes in each direction, seen on a straightaway with trees off to the sides]] I-90 enters New York in [[Chautauqua County, New York|Chautauqua County]] and runs concurrently with the mainline of the tolled [[New York State Thruway]]. It travels northeast along the Lake Erie shoreline between [[New York State Route 5|Lake Road]] to the north and US 20 to the south through [[Dunkirk, New York|Dunkirk]] and [[Fredonia, New York|Fredonia]]. The highways enter the [[Buffalo, New York|Buffalo]] area, where the toll road runs north–south through [[Cheektowaga, New York|Cheektowaga]] and forms an eastern bypass, using auxiliary routes [[Interstate 190 (New York)|I-190]] and [[Interstate 290 (New York)|I-290]] to serve the city.<ref name="google"/><ref name="NYS-Map">{{cite map |year=2001 |title=New York State Map |url=http://iloveny.com/_files/map_nys_base.pdf |at=[https://web.archive.org/web/20091231053955/http://iloveny.com/_files/map_metro_albany.pdf Albany/Schenectady/Troy Metro] inset|cartography=Maps.com |scale=Scale not given |location=Albany |publisher=[[New York State Department of Economic Development]] |url-status=dead |archive-url=https://web.archive.org/web/20091231053250/http://iloveny.com/_files/map_nys_base.pdf |archive-date=December 31, 2009 |accessdate=November 30, 2021}}</ref> At a junction with I-290 near [[Buffalo Niagara International Airport]], I-90 turns east to follow the historic [[Water Level Route]] of the [[New York Central Railroad]], itself parallel to the 19th-century [[Erie Canal]].<ref name="NPS-Erie">{{cite web |year=2020 |title=Erie Canalway Map & Guide |pages=4–5 |url=http://npshistory.com/publications/erie/newspaper/2020.pdf |publisher=National Park Service |url-status=dead |archive-url=https://web.archive.org/web/20211201043819/http://npshistory.com/publications/erie/newspaper/2020.pdf |archive-date=December 1, 2021 |accessdate=November 30, 2021}}</ref><ref name="RDC-Thruway">{{cite news |last=O'Donnell |first=Harry |date=June 25, 1950 |title=Thruway to Surpass Pennsylvania Turnpike |page=13A |work=[[Rochester Democrat and Chronicle]] |url=https://www.newspapers.com/clip/89843028/thruway-to-surpass-pennsylvania-turnpike/ |via=Newspapers.com |accessdate=November 30, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201043817/https://www.newspapers.com/clip/89843028/thruway-to-surpass-pennsylvania-turnpike/ |url-status=live }}</ref> The Thruway passes south of [[Rochester, New York|Rochester]], which it serves via a loop on [[Interstate 490 (New York)|I-490]] and the direct north–south spur [[Interstate 390 (New York)|I-390]]. I-90 travels through the [[Finger Lakes]] region and moves closer to the Erie Canal as it approaches the [[Syracuse, New York|Syracuse]] area. It travels through the city's northern outskirts, where it intersects [[Interstate 690 (New York)|I-690]], [[Interstate 81|I-81]], and [[Interstate 481|I-481]] from west to east.<ref>{{cite map |author=[[Syracuse Metropolitan Transportation Council]] |date=June 2016 |title=2016 Highway Map of Onondaga County, New York |url=http://www.ongov.net/dot/documents/2016HighwayMapofOnondagaCounty.pdf |scale=Scale not given |location=Syracuse |publisher=[[Onondaga County, New York|Onondaga County Department of Transportation]] |accessdate=November 30, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009232852/http://www.ongov.net/dot/documents/2016HighwayMapofOnondagaCounty.pdf |url-status=live }}</ref> It then continues to [[Utica, New York|Utica]], where the Thruway runs along the north side of the [[Mohawk River]] (part of the Erie Canal).<ref name="NPS-Erie"/> The section through Utica, connected to the city's downtown via [[Interstate 790|I-790]], was built between the lines of [[New York State Route 49|SR 49]], which does not merge with the Thruway.<ref name="google"/> I-90 then closely follows the Mohawk River southeast through several towns and villages between the foothills of the [[Catskill Mountains|Catskill]] and [[Adirondack Mountains|Adirondack]] mountains. The Thruway then reaches [[Schenectady, New York|Schenectady]], which it bypasses to the southwest and intersects [[Interstate 88 (New York)|I-88]] and [[Interstate 890|I-890]], the latter of which serves the city's downtown. The highway continues southeast into Albany to a junction with [[Interstate 87 (New York)|I-87]], where I-90 splits from the Thruway, which turns south to serve [[New York City]].<ref name="NYS-Map"/> I-90 travels east as a toll-free freeway through the northern neighborhoods of Albany and intersects [[Interstate 787|I-787]] before it crosses the [[Hudson River]]. The freeway travels south around [[Rensselaer, New York|Rensselaer]] and rejoins the Thruway via the [[Berkshire Connector]], which continues east into the [[Taconic Mountains]] toward the Massachusetts state line.<ref name="google"/><ref name="NYS-Map"/> The [[milepost]]s and sequential [[exit number]]s on the New York State Thruway mainline originate from New York City, increasing northward on I-87 and westward on I-90;<ref name="Thruway-Exits">{{cite web |title=Interchange/Exit Listings |url=https://www.thruway.ny.gov/travelers/interchanges/index.html |publisher=[[New York State Thruway Authority]] |accessdate=November 30, 2021 |archive-date=September 8, 2021 |archive-url=https://web.archive.org/web/20210908054601/https://www.thruway.ny.gov/travelers/interchanges/index.html |url-status=live }}</ref> as a result, the mileposts and exit numbers on I-90 through most of New York run backwards compared to the federal preference for mile-based numbers increasing from west to east.<ref>{{cite news |last=Rubel |first=Abigail |date=September 27, 2021 |title=Getting There: Will New York change its highway exit numbers? |url=https://www.timesunion.com/news/article/Getting-There-Will-New-York-change-its-highway-16488756.php |work=[[Times Union (Albany)|Times Union]] |accessdate=November 30, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201045209/https://www.timesunion.com/news/article/Getting-There-Will-New-York-change-its-highway-16488756.php |url-status=live }}</ref> The Berkshire Connector uses west-to-east mileposts and exit numbers with a "B" prefix;<ref name="Thruway-Exits"/> the toll-free section of I-90 through Albany and Rensselaer uses conventional west-to-east mileposts and exit numbers despite being geographically north–south.<ref name="google"/> I-90 is currently the only Interstate that has a complete set of nine [[spur route]]s within one state, all numbers being used.<ref name="FHWA-Facts"/> In addition, [[Interstate 990|I-990]], a short spur route near Buffalo that is not directly connected to I-90, is the highest number given to an Interstate.<ref>{{cite news |date=May 31, 2006 |title=50 Years of freedom |url=https://www.overdriveonline.com/business/article/14879885/50-years-of-freedom |work=[[Overdrive (U.S. magazine)|Overdrive]] |accessdate=November 30, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201045209/https://www.overdriveonline.com/business/article/14879885/50-years-of-freedom |url-status=live }}</ref><ref>{{cite web |year=2006 |title=Tennessee's Interstate System – Frequently Asked Questions |url=https://www.tn.gov/tdot/100years-home/100years-interstate/100-years-interstate-system-faqs.html |publisher=[[Tennessee Department of Transportation]] |accessdate=November 30, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201045209/https://www.tn.gov/tdot/100years-home/100years-interstate/100-years-interstate-system-faqs.html |url-status=live }}</ref> ===Massachusetts=== {{Main|Massachusetts Turnpike}} [[File:Fenway neighborhood seen from Prudential Skywalk.jpg|thumb|right|View of the [[Massachusetts Turnpike]] in Boston's [[Fenway–Kenmore]] neighborhood, seen from the [[Prudential Tower]]. [[Fenway Park]] is visible at top left.|alt=Aerial view of a divided highway in a dense urban neighborhood, passing under several bridges and near multi-story buildings and a baseball stadium]] I-90 in Massachusetts is concurrent with the entirety of the [[Massachusetts Turnpike]] (also known as "the Pike" or "MassPike").<ref name="MA-Map">{{cite map |author=MassDOT Central Transportation Planning Staff |year=2019 |title=Massachusetts Official Transportation Map |scale=1 inch = 6 miles |url=https://www.mass.gov/doc/official-transportation-map-english/download |location=Boston |publisher=[[Massachusetts Department of Transportation]] |accessdate=November 30, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201060239/https://www.mass.gov/doc/official-transportation-map-english/download |url-status=live }}</ref> The turnpike begins at the New York state line in [[West Stockbridge, Massachusetts|West Stockbridge]] and travels southeast through the [[Berkshires]] to the [[Pioneer Valley]].<ref>{{cite news |last=Carlinsky |first=Dan |date=September 21, 1975 |title=...And Back Roads Of Massachusetts |at=sec. 10, p. 1 |url=https://www.nytimes.com/1975/09/21/archives/and-back-roads-of-massachusetts-fall-foliage-massachusetts.html |work=The New York Times |accessdate=November 30, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201060236/https://www.nytimes.com/1975/09/21/archives/and-back-roads-of-massachusetts-fall-foliage-massachusetts.html |url-status=live }}</ref> The highway travels through the northern suburbs of [[Springfield, Massachusetts|Springfield]], where it intersects [[Interstate 91|I-91]] and crosses the [[Connecticut River]] into [[Chicopee, Massachusetts|Chicopee]]. I-90 then crosses over [[Interstate 391|I-391]] without an interchange and serves as the northern terminus of [[Interstate 291 (Massachusetts)|I-291]] on the eastern outskirts of the city. The turnpike continues east through the hills of [[Central Massachusetts]] and serves as the eastern terminus of [[Interstate 84 (Pennsylvania–Massachusetts)|I-84]] in the town of [[Sturbridge, Massachusetts|Sturbridge]].<ref name="MA-Map"/> From Sturbridge, the turnpike travels northeast towards [[Worcester, Massachusetts|Worcester]] and passes through the city's southern outskirts. It serves as the respective northern and western terminus of [[Interstate 395 (Connecticut–Massachusetts)|I-395]] and [[Interstate 290 (Massachusetts)|I-290]] in [[Auburn, Massachusetts|Auburn]], located southwest of Worcester, and continues to an interchange with [[Interstate 495 (Massachusetts)|I-495]] near [[Westborough, Massachusetts|Westborough]] at the edge of [[Greater Boston]]. I-90 travels through the western suburbs of Boston and travels through [[Framingham, Massachusetts|Framingham]] before it intersects [[Interstate 95|I-95]]/[[Massachusetts Route 128|Route 128]], the main beltway around Boston, on the border of [[Weston, Massachusetts|Weston]] and [[Newton, Massachusetts|Newton]].<ref name="MA-Map"/> The turnpike continues along the [[Charles River]] into Boston, where it descends into a tunnel that passes [[Boston University]], [[Fenway Park]], and [[Prudential Tunnel|under]] the [[Prudential Tower]] complex in the [[Back Bay, Boston|Back Bay]] neighborhood.<ref name="google"/><ref>{{cite news |last=Rubin |first=Eilhu |date=May 27, 2012 |title=How to look at the Prudential |url=https://www.bostonglobe.com/ideas/2012/05/26/how-look-pru/GRnscdL9VQjJQ5AsW6yXML/story.html |work=[[The Boston Globe]] |accessdate=November 30, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201060237/https://www.bostonglobe.com/ideas/2012/05/26/how-look-pru/GRnscdL9VQjJQ5AsW6yXML/story.html |url-status=live }}</ref> I-90 intersects [[Interstate 93|I-93]] on the south side of [[Downtown Boston]] and travels under the [[Fort Point Channel]] to serve the [[Seaport District]]. The turnpike then enters the [[Ted Williams Tunnel]], which travels northeast under [[Boston Harbor]] to the passenger terminals at [[Logan International Airport]].<ref name="Globe-BigDig10">{{cite news |last=Flint |first=Anthony |date=December 29, 2015 |title=10 years later, did the Big Dig deliver? |url=https://www.bostonglobe.com/magazine/2015/12/29/years-later-did-big-dig-deliver/tSb8PIMS4QJUETsMpA7SpI/story.html |work=The Boston Globe |accessdate=November 30, 2021 |archive-date=December 5, 2020 |archive-url=https://web.archive.org/web/20201205214626/https://www.bostonglobe.com/magazine/2015/12/29/years-later-did-big-dig-deliver/tSb8PIMS4QJUETsMpA7SpI/story.html |url-status=live }}</ref> After it passes the northwest side of the airport, I-90 terminates at an interchange with [[Massachusetts Route 1A|Route 1A]] in [[East Boston]].<ref name="MA-Map"/> The section between I-93 and the airport was opened in the early 2000s as part of the [[Big Dig]] megaproject,<ref name="Globe-BigDig10"/> which rebuilt several Boston freeways and extended I-90 by {{convert|3.5|mi|km}}.<ref name="FHWA-Facts"/><ref name="MassDOT-BigDig">{{cite web |title=The Big Dig: tunnels and bridges |url=https://www.mass.gov/info-details/the-big-dig-tunnels-and-bridges |publisher=Massachusetts Department of Transportation |accessdate=November 30, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201060242/https://www.mass.gov/info-details/the-big-dig-tunnels-and-bridges |url-status=live }}</ref> ==History== ===Predecessors and establishment=== An east–west controlled access highway to serve the Northern United States was proposed in the early 20th century in several federal government documents, including reports from the [[Bureau of Public Roads]] in the 1930s and 1940s.<ref>{{cite news |last=Miller |first=James N. |date=July 23, 1939 |title=14,000 Mile Super Highway To Speed Transportation |page=3 |work=The Seattle Times}}</ref><ref>{{cite magazine |last=Pfeiffer |first=David A. |date=Summer 2006 |title=Ike's Interstates at 50 |pages=14–18 |url=https://www.archives.gov/publications/prologue/2006/summer/interstates.html |magazine=[[Prologue (magazine)|Prologue]] |publisher=[[National Archives and Records Administration]] |issn=0033-1031 |oclc=321015582 |accessdate=April 11, 2022 |archive-date=March 2, 2011 |archive-url=https://web.archive.org/web/20110302235254/http://archives.gov/publications/prologue/2006/summer/interstates.html |url-status=live }}</ref> The Interstate Highway System was created by the [[Federal-Aid Highway Act of 1956]], which was approved by the [[U.S. Congress]] and signed into law on June 26, 1956.<ref name="FHWA-Urban">{{cite web |last=Weingroff |first=Richard F. |year=2006 |title=Designating the Urban Interstates |url=https://www.fhwa.dot.gov/infrastructure/fairbank.cfm |publisher=Federal Highway Administration |accessdate=November 30, 2021 |archive-date=December 30, 2017 |archive-url=https://web.archive.org/web/20171230231552/https://www.fhwa.dot.gov/infrastructure/fairbank.cfm |url-status=live }}</ref> I-90 was assigned to the northernmost transcontinental route in the system by the [[American Association of State Highway Officials]] in 1957.<ref name="FHWA-1957">{{cite map |author=American Association of State Highway Officials |date=August 14, 1957 |title=Official Route Numbering for the National System of Interstate and Defense Highways |url=https://upload.wikimedia.org/wikipedia/commons/9/9c/Interstate_Highway_plan_August_14%2C_1957.jpg |scale=Scale not given |location=Washington, D.C. |publisher=[[Public Roads Administration]] |via=Wikimedia Commons |accessdate=November 30, 2021 |archive-date=May 3, 2021 |archive-url=https://web.archive.org/web/20210503214401/https://upload.wikimedia.org/wikipedia/commons/9/9c/Interstate_Highway_plan_August_14,_1957.jpg |url-status=live }}</ref><ref>{{cite news |last=Hodenfield |first=G. K. |date=September 26, 1957 |title=New Markers to Dot Super Roads |page=1 |work=[[The Indianapolis News]] |url=https://www.newspapers.com/clip/89671853/new-markers-to-dot-super-roads/ |via=Newspapers.com |accessdate=November 30, 2021 |archive-date=November 29, 2021 |archive-url=https://web.archive.org/web/20211129053729/https://www.newspapers.com/clip/89671853/new-markers-to-dot-super-roads/ |url-status=live }}</ref> The freeway would travel along existing parts of the [[United States Numbered Highway System]], which was established at the suggestion of the federal government in 1926 to replace the named [[auto trail]]s.<ref>{{cite web |last=Weingroff |first=Richard F. |title=From Names to Numbers: The Origins of the U.S. Numbered Highway System |url=https://www.fhwa.dot.gov/infrastructure/numbers.cfm |work=Highway History |publisher=Federal Highway Administration |accessdate=December 9, 2021 |archive-date=September 1, 2019 |archive-url=https://web.archive.org/web/20190901182531/https://www.fhwa.dot.gov/infrastructure/numbers.cfm |url-status=live }}</ref> Among these auto trails, which were generally designated by private motorist organizations, were the transcontinental [[Yellowstone Trail]] and [[National Parks Highway]], created in the 1910s along the future route of I-90 between Seattle and Boston.<ref>{{cite magazine |last=Westgard |first=A. L. |author-link=A. L. Westgard |date=June 7, 1919 |title=Let's Go: Here Are the Motor Trails from Atlantic to Pacific—and All Points Between |pages=360–361, 379 |magazine=[[The Independent (New York City)|The Independent]] |volume=98 |issue=3678 |oclc=4927591 |url=https://books.google.com/books?id=LvDlAAAAMAAJ&pg=PA360 |via=Google Books |accessdate=December 9, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233351/https://books.google.com/books?id=LvDlAAAAMAAJ&pg=PA360 |url-status=live }}</ref><ref>{{cite news |last=Burkhart |first=Dan |date=February 17, 1998 |title=Interstate 90 had rough, rutted forerunner |page=8M |work=[[Great Falls Tribune]] |url=https://www.newspapers.com/clip/90281383/interstate-90-had-rough-rutted/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 9, 2021 |archive-url=https://web.archive.org/web/20211209081242/https://www.newspapers.com/clip/90281383/interstate-90-had-rough-rutted/ |url-status=live }}</ref> The national numbered highways along the corridor included [[U.S. Route 10|US 10]] from Seattle to Billings, Montana; [[U.S. Route 87|US 87]] from Billings to [[Buffalo, Wyoming]]; [[U.S. Route 16|US 16]] from Buffalo to [[Portage, Wisconsin]]; [[U.S. Route 51|US 51]] from Portage to [[Rockford, Illinois]] and [[U.S. Route 20|US 20]] from Rockford to Boston.<ref>{{cite book |author=Joint Board on Interstate Highways |year=1925 |title=Report of Joint Board on Interstate Highways, October 30, 1925, Approved by the Secretary of Agriculture, November 18, 1925 |chapter=Appendix VI: Descriptions of the Interstate Routes Selected, with Numbers Assigned |pages=50–56 |chapter-url=https://en.wikisource.org/wiki/Report_of_Joint_Board_on_Interstate_Highways_October_30,_1925#48 |location=Washington, D.C. |publisher=[[United States Department of Agriculture]] |id={{OCLC|733875457|55123355|71026428}} |via=[[Wikisource]] |accessdate=December 9, 2021 |archive-date=November 14, 2017 |archive-url=https://web.archive.org/web/20171114145350/https://en.wikisource.org/wiki/Report_of_Joint_Board_on_Interstate_Highways_October_30,_1925#48 |url-status=live }}</ref><ref>{{cite map |author1= [[Bureau of Public Roads]] |author2= [[American Association of State Highway Officials]] |date= November 11, 1926 |title= United States System of Highways Adopted for Uniform Marking by the American Association of State Highway Officials |url= https://commons.wikimedia.org/wiki/File:United_States_System_of_Highways_Adopted_for_Uniform_Marking_by_the_American_Association_of_State_Highway_Officials.jpg |scale= 1:7,000,000 |location= Washington, DC |publisher= [[United States Geological Survey]] |oclc= 32889555 |via= [[Wikimedia Commons]] |accessdate= December 9, 2021 |archive-date= April 13, 2017 |archive-url= https://web.archive.org/web/20170413153913/https://commons.wikimedia.org/wiki/File:United_States_System_of_Highways_Adopted_for_Uniform_Marking_by_the_American_Association_of_State_Highway_Officials.jpg |url-status= live }}</ref> ===Tollways and urban construction=== [[File:Chicago Circle Interchange 2018.jpg|thumb|right|Aerial view of the [[Circle Interchange]] in Chicago during reconstruction in 2018|alt=Aerial view of a major freeway interchange with several flyover ramps set within an urban neighborhood. Several ramps have exposed steel beams and other unfinished surfaces, showing signs of construction activity.]] Major portions of I-90 in the Midwest and Northeastern states used existing toll roads built by state governments in the 1950s and 1960s. The [[Jane Addams Memorial Tollway|Northwest Tollway]], [[Chicago Skyway]], [[Indiana Toll Road]], [[Ohio Turnpike]], [[New York State Thruway]], and [[Massachusetts Turnpike]] all predate I-90 and were incorporated into the route.<ref>{{cite news |last=Ingraham |first=Joseph C. |date=May 24, 1959 |title=Boston to Chicago: New Section of Thruway Completes Express Route Between Cities |page=XX1 |url=https://www.nytimes.com/1959/05/24/archives/boston-to-chicago-new-section-of-thruway-completes-express-route.html |work=The New York Times |accessdate=December 4, 2021 |archive-date=July 22, 2018 |archive-url=https://web.archive.org/web/20180722095852/https://www.nytimes.com/1959/05/24/archives/boston-to-chicago-new-section-of-thruway-completes-express-route.html |url-status=live }}</ref> This also meant that portions of the route did not adhere to [[Interstate Highway standards]], but they were either deemed adequate or rebuilt to conform by the 1980s.<ref>{{cite news |last=Gough |first=William |date=September 30, 1987 |title=Across the lake in concrete: A ride on new I-90 span bridges a gap in the imagination |page=E1 |work=The Seattle Times}}</ref> The Pennsylvania section was planned in the early 1950s as the "Erie Extension" of the [[Pennsylvania Turnpike]],<ref>{{cite news |last=Snyder |first=Thomas P. |date=September 7, 1953 |title=Turnpike Link to Erie Assured, Survey of Best Route Begins |page=8 |work=[[Pittsburgh Sun-Telegraph]] |url=https://www.newspapers.com/clip/89848370/turnpike-link-to-erie-assured-survey/ |via=Newspapers.com |accessdate=December 1, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233351/https://www.newspapers.com/clip/89848370/turnpike-link-to-erie-assured-survey/ |url-status=live }}</ref> but was instead completed as a toll-free road in October 1960 with federal funds.<ref>{{cite news |date=October 24, 1960 |title=Erie Throughway Is Scheduled To Be Officially Open Friday |page=3 |work=[[The Titusville Herald]] |url=https://www.newspapers.com/clip/89848487/erie-throughway-is-scheduled-to-be/ |via=Newspapers.com |accessdate=December 1, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201084457/https://www.newspapers.com/clip/89848487/erie-throughway-is-scheduled-to-be/ |url-status=live }}</ref> The completion of the section also allowed for full use of the New York State Thruway, which had been finished three years earlier but ended abruptly at the state line.<ref>{{cite news |last=White |first=William A. |date=October 28, 1960 |title='Dead-End' Thruway Is Opened At Erie |page=4 |work=[[The Pittsburgh Press]] |url=https://www.newspapers.com/clip/89848466/dead-end-thruway-is-opened-at-erie/ |via=Newspapers.com |accessdate=December 1, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201084456/https://www.newspapers.com/clip/89848466/dead-end-thruway-is-opened-at-erie/ |url-status=live }}</ref> I-90 would use several expressways and tollways in the Chicago area, the earliest of which was the [[Kingery Expressway|Tri-State Expressway]] (now the Kingery Expressway), completed in 1950 and extended into Indiana the following year.<ref>{{cite news |last=Foust |first=Hal |date=October 23, 1950 |title=First Section of Expressway Will Open Nov. 1 |at=sec. 1, p. 14 |work=Chicago Tribune |url=https://www.newspapers.com/clip/90008367/first-section-of-expressway-will-open/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233352/https://www.newspapers.com/clip/90008367/first-section-of-expressway-will-open/ |url-status=live }}</ref><ref>{{cite news |date=December 14, 1951 |title=Schricker, Stevenson Open Super-Highway Link |page=1 |work=[[The Hammond Times]] |url=https://www.newspapers.com/clip/90008620/schricker-stevenson-open-super-highway/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 4, 2021 |archive-url=https://web.archive.org/web/20211204085252/https://www.newspapers.com/clip/90008620/schricker-stevenson-open-super-highway/ |url-status=live }}</ref> It was followed by the [[Eisenhower Expressway|Congress Expressway]] in the western suburbs, first opened in 1955, and the Northwest Tollway in 1958.<ref>{{cite news |last=Foust |first=Hal |date=December 10, 1955 |title=Show 4.5 Mile Congress St. Stretch to Be Opened to Traffic Tuesday |at=sec. 1, p. 3 |work=Chicago Tribune |url=https://www.newspapers.com/clip/89957155/show-45-mile-congress-st-stretch-to/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233352/https://www.newspapers.com/clip/89957155/show-45-mile-congress-st-stretch-to/ |url-status=live }}</ref><ref>{{cite news |date=August 21, 1958 |title=Traffic Rolls on 76 Miles of Tollways |at=sec. 1, p. 1 |work=Chicago Tribune |url=https://www.newspapers.com/clip/89957220/traffic-rolls-on-76-miles-of-tollways/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 3, 2021 |archive-url=https://web.archive.org/web/20211203112636/https://www.newspapers.com/clip/89957220/traffic-rolls-on-76-miles-of-tollways/ |url-status=live }}</ref> The last section to be completed in Illinois was the toll-free [[Dan Ryan Expressway]], which opened on December 15, 1962, and was described as the "world's widest freeway" at the time.<ref>{{cite news |last=Foust |first=Hal |date=December 16, 1962 |title=Drivers Jam Expressway on First Day |at=sec. 1, p. 1 |work=Chicago Tribune |url=https://www.newspapers.com/clip/90283091/drivers-jam-expressway-on-first-day/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 9, 2021 |archive-url=https://web.archive.org/web/20211209105701/https://www.newspapers.com/clip/90283091/drivers-jam-expressway-on-first-day/ |url-status=live }}</ref><ref>{{cite news |last=Sullivan |first=Mort J. |date=December 13, 1962 |title=Dan Ryan Expressway Will Open Saturday |page=24 |work=[[Daily Herald (Arlington Heights, Illinois)|Chicago Daily Herald]] |agency=[[United Press International]] |url=https://www.newspapers.com/clip/90283107/dan-ryan-expressway-will-open-saturday/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 9, 2021 |archive-url=https://web.archive.org/web/20211209105659/https://www.newspapers.com/clip/90283107/dan-ryan-expressway-will-open-saturday/ |url-status=live }}</ref> In 1965, the designation for I-90 was switched with I-94 south of Chicago, which moved it to the tolled Chicago Skyway (completed in 1958);<ref>{{cite map |author=Rand McNally |year=1965 |title=1965 Illinois Official Highway Map |scale=1 inch = 12 miles |location=Springfield |publisher=[[Illinois Division of Highways]] |url=https://apps.dot.illinois.gov/HistoricalMapViewer/Files/1965F_Illinois_Statemap.pdf |at=[https://apps.dot.illinois.gov/HistoricalMapViewer/Files/1965B_Illinois_Statemap.pdf Chicago and Vicinity] inset |access-date=December 9, 2021 |archive-date=November 7, 2021 |archive-url=https://web.archive.org/web/20211107232920/https://apps.dot.illinois.gov/HistoricalMapViewer/Files/1965F_Illinois_Statemap.pdf |url-status=live }}</ref><ref>{{cite news |last=Foust |first=Hal |date=April 17, 1958 |title=A Great Day For Chicago! Skyway Open |at=sec. 1, p. 1 |work=Chicago Tribune |url=https://www.newspapers.com/clip/89957115/a-great-day-for-chicago-skyway-open/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233351/https://www.newspapers.com/clip/89957115/a-great-day-for-chicago-skyway-open/ |url-status=live }}</ref> the change was requested by the Illinois and Indiana state governments to avoid confusion and provide a continuous toll connection to the Indiana Toll Road,<ref>{{cite web |date=February 27, 1964 |title=An Application From the State Highway Department of Indiana For the Relocation of Interstate Route I-90 |publisher=American Association of State Highway Officials |url=https://grmservices.grmims.com/vsearch/portal/public/na4/aashto/default |via=AASHTO Route Numbering Archive |accessdate=December 9, 2021 |archive-date=October 2, 2020 |archive-url=https://web.archive.org/web/20201002030140/https://grmservices.grmims.com/vsearch/portal/public/na4/aashto/default |url-status=live }}</ref> which had been fully opened in 1956.<ref>{{cite news |date=November 16, 1956 |title=No Fanfare As Final Indiana Toll Link Opens; Semi-Trailer, State Police Car 1st Customers |page=1 |work=The Hammond Times |url=https://www.newspapers.com/clip/90008489/no-fanfare-as-final-indiana-toll-link/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 4, 2021 |archive-url=https://web.archive.org/web/20211204085317/https://www.newspapers.com/clip/90008489/no-fanfare-as-final-indiana-toll-link/ |url-status=live }}</ref> I-90 was moved onto the Kennedy Expressway in 1977 and its western route was replaced with [[Interstate 290 (Illinois)|I-290]] from Schaumburg to the [[Circle Interchange]] in Chicago.<ref>{{AASHTO minutes |year=1977S |page=5 |accessdate=December 9, 2021}}</ref><ref>{{Illinois road map |year=1979 |inset=Chicago and Vicinity |accessdate=April 11, 2022}}</ref> The other tolled sections of I-90 were completed in the 1950s by their respective state governments. The {{convert|241|mi|km|adj=mid}} Ohio Turnpike opened to traffic on October 1, 1955, three years after construction began.<ref>{{cite news |last=Cram |first=Winston |date=October 1, 1955 |title=Midnight Ceremony Opens Turnpike; Traffic Swarms On Ohio 'Main Street' |page=1 |work=[[Toledo Blade]] |url=https://news.google.com/newspapers?id=IvZOAAAAIBAJ&sjid=jwAEAAAAIBAJ&pg=6946%2C3406428 |via=[[Google News Archive]] |accessdate=December 9, 2021 |archive-date=December 9, 2021 |archive-url=https://web.archive.org/web/20211209113044/https://news.google.com/newspapers?id=IvZOAAAAIBAJ&sjid=jwAEAAAAIBAJ&pg=6946,3406428 |url-status=live }}</ref> The first segment of the New York Thruway opened in June 1954 and was followed by extensions to Buffalo and the Albany area by the end of the year.<ref>{{cite news |last=Ingraham |first=Joseph C. |date=June 23, 1954 |title=Thruway to Open Officially Today |page=29 |url=https://www.nytimes.com/1954/06/24/archives/thruway-to-open-officially-today-dewey-will-cut-tape-on-first-toll.html |work=The New York Times |accessdate=December 9, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233352/https://www.nytimes.com/1954/06/24/archives/thruway-to-open-officially-today-dewey-will-cut-tape-on-first-toll.html |url-status=live }}</ref><ref>{{cite news |last=Ingraham |first=Joseph C. |date=October 24, 1954 |title=More Thruway: Newburgh-Utica Link Opens Tuesday, Bringing Pike Within 61 Miles of City |page=X19 |url=https://www.nytimes.com/1954/10/24/archives/more-thruway-newburghutica-link-opens-tuesday-bringing-pike-within.html |work=The New York Times |accessdate=December 9, 2021 |archive-date=December 4, 2021 |archive-url=https://web.archive.org/web/20211204103347/https://www.nytimes.com/1954/10/24/archives/more-thruway-newburghutica-link-opens-tuesday-bringing-pike-within.html |url-status=live }}</ref> It was extended to the Pennsylvania state line in 1957 and to the Massachusetts Turnpike via the Berkshire Connector in 1959.<ref>{{cite news |date=December 15, 1957 |title=The Thruway Becomes the Longest Toll Road |page=159 |url=https://www.nytimes.com/1957/12/15/archives/the-thruway-becomes-the-longest-toll-road-on-schedule.html |work=The New York Times |accessdate=December 9, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233352/https://www.nytimes.com/1957/12/15/archives/the-thruway-becomes-the-longest-toll-road-on-schedule.html |url-status=live }}</ref><ref>{{cite news |last=Weaver |first=Warren Jr. |date=May 27, 1959 |title=Thruway Opened to New England |page=20 |url=https://www.nytimes.com/1959/05/27/archives/thruway-opened-to-new-england-governor-rides-half-moon-in-symbolic.html |work=The New York Times |accessdate=December 9, 2021 |archive-date=December 4, 2021 |archive-url=https://web.archive.org/web/20211204103847/https://www.nytimes.com/1959/05/27/archives/thruway-opened-to-new-england-governor-rides-half-moon-in-symbolic.html |url-status=live }}</ref> The Berkshire section linked with the Massachusetts Turnpike, which had opened in 1957 from the state line to Newton, a distance of {{convert|123|mi|km}}.<ref>{{cite news |last=Ingraham |first=Joseph C. |date=May 12, 1957 |title=Bay State's Turnpike Link |page=XX3 |url=https://www.nytimes.com/1957/05/12/archives/bay-states-turnpike-link-opening-of-massachusetts-highway-this-week.html |work=The New York Times |accessdate=December 4, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233352/https://www.nytimes.com/1957/05/12/archives/bay-states-turnpike-link-opening-of-massachusetts-highway-this-week.html |url-status=live }}</ref> The turnpike was extended into Boston in two stages: first by {{convert|9|mi|km}} from Newton to [[Allston, Boston|Allston]] in September 1964;<ref>{{cite news |last=Plotkin |first=A. S. |date=September 4, 1964 |title=Hot Debate Preceded Building of Toll Link |page=12 |work=The Boston Globe |url=https://www.newspapers.com/clip/90009720/hot-debate-preceded-building-of-toll/ |via=Newspapers.com |accessdate=December 4, 2021 |archive-date=December 4, 2021 |archive-url=https://web.archive.org/web/20211204110924/https://www.newspapers.com/clip/90009720/hot-debate-preceded-building-of-toll/ |url-status=live }}</ref> and finally with an extension to I-93 near [[South Station (Boston)|South Station]] in Downtown Boston that opened on February 18, 1965.<ref>{{cite news |last=Hanron |first=Robert B. |date=February 19, 1965 |title=East-West Gateway Swings Open; 60 M.P.H. Through Boston... |page=1 |work=The Boston Globe |url=https://www.newspapers.com/clip/90009765/east-west-gateway-swings-open/ |via=Newspapers.com |accessdate=December 4, 2021 |archive-date=December 4, 2021 |archive-url=https://web.archive.org/web/20211204110924/https://www.newspapers.com/clip/90009765/east-west-gateway-swings-open/ |url-status=live }}</ref> ===Non-tolled construction=== [[File:I 90 Montana Construction sign.png|thumb|right|Construction sign on a section of I-90 in Montana|alt=Black-and-white photograph of a sign with the I-90 shield announcing "Interstate Highway Construction Next 12 Miles" with a recommended speed limit of 35 miles per hour.]] The freeway also incorporated other non-tolled expressway bypasses planned by state governments in the early 1950s and modified to meet Interstate standards. A bypass of Spokane Valley, Washington, opened in November 1956 as the first section in Washington and was extended into neighboring Spokane two years later.<ref>{{cite news |last=Dieffenbach |first=Al |date=November 16, 1961 |title=Freeway is Five: Traffic Benefits Are Listed |page=1 |work=[[Spokane Daily Chronicle]] |url=https://www.newspapers.com/clip/89848854/freeway-is-five-traffic-benefits-are/ |via=Newspapers.com |access-date=December 9, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201094407/https://www.newspapers.com/clip/89848854/freeway-is-five-traffic-benefits-are/ |url-status=live }}</ref> Wisconsin opened their first section in November 1959, connecting the terminus of the Illinois Tollway with Janesville,<ref>{{cite news |last=Foust |first=Hal |date=November 25, 1959 |title=Opens 18 Miles of Interstate Expressway |at=sec. 1, p. 8 |work=Chicago Tribune |url=https://www.newspapers.com/clip/89956670/opens-18-miles-of-interstate-expressway/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 3, 2021 |archive-url=https://web.archive.org/web/20211203102613/https://www.newspapers.com/clip/89956670/opens-18-miles-of-interstate-expressway/ |url-status=live }}</ref> and extended the freeway through the Madison area to Wisconsin Dells in 1962.<ref>{{cite news |last=Foust |first=Hal |date=November 3, 1962 |title=Expressway From Chicago to Dells Open |at=sec. 1, p. 16 |work=Chicago Tribune |url=https://www.newspapers.com/clip/89956704/expressway-from-chicago-to-dells-open/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 3, 2021 |archive-url=https://web.archive.org/web/20211203102847/https://www.newspapers.com/clip/89956704/expressway-from-chicago-to-dells-open/ |url-status=live }}</ref> The Cleveland Innerbelt opened in stages from 1959 to 1962 and was originally planned to connect with the [[Parma Freeway]], which would have carried I-90 around the northwest side of [[Downtown Cleveland]]. It was later cancelled in the 1960s amid [[Freeway revolt|public opposition]].<ref>{{cite encyclopedia |date=May 11, 2018 |title=Innerbelt Freeway |url=https://case.edu/ech/articles/i/innerbelt-freeway |encyclopedia=[[Encyclopedia of Cleveland History]] |publisher=[[Case Western Reserve University]] |accessdate=December 9, 2021 |archive-date=December 4, 2021 |archive-url=https://web.archive.org/web/20211204093234/https://case.edu/ech/articles/i/innerbelt-freeway |url-status=live }}</ref><ref>{{cite news |last=Grant |first=Alison |date=May 6, 2015 |title=Big Creek bike-pedestrian greenway eyed for vicinity of abandoned 'Parma Freeway' |url=https://www.cleveland.com/metro/2015/05/big_creek_bike-pedestrian_gree.html |work=The Plain Dealer |accessdate=December 9, 2021 |archive-date=December 10, 2021 |archive-url=https://web.archive.org/web/20211210033137/https://www.cleveland.com/metro/2015/05/big_creek_bike-pedestrian_gree.html |url-status=live }}</ref> The first Minnesota section, built to bypass Austin, began construction in 1957 and opened in 1961.<ref>{{cite news |date=October 2, 1957 |title=Road Construction Near Austin Part of East-West Belt Route |page=6B |work=The Minneapolis Star |url=https://www.newspapers.com/clip/90281922/road-construction-near-austin-part-of/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233353/https://www.newspapers.com/clip/90281922/road-construction-near-austin-part-of/ |url-status=live }}</ref><ref>{{cite news |date=November 9, 1961 |title=Beltline at Austin Opened |page=10 |work=[[Winona Daily News]] |agency=Associated Press |url=https://www.newspapers.com/clip/89956300/beltline-at-austin-opened/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 3, 2021 |archive-url=https://web.archive.org/web/20211203092821/https://www.newspapers.com/clip/89956300/beltline-at-austin-opened/ |url-status=live }}</ref> [[Wisconsin]] was among the first states to complete its rural Interstate system and opened its final section of I-90, from La Crosse to Tomah, in November 1969.<ref>{{cite news |date=October 22, 2009 |title=I-94 segment observes 50th anniversary |url=https://www.republicaneagle.com/news/i-94-segment-observes-50th-anniversary/article_c2b87d1b-b474-5d7c-b857-88f4ca6455ac.html |work=[[Red Wing Republican Eagle]] |accessdate=December 9, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233353/https://www.republicaneagle.com/news/i-94-segment-observes-50th-anniversary/article_c2b87d1b-b474-5d7c-b857-88f4ca6455ac.html |url-status=live }}</ref><ref>{{cite news |last=Wolski |first=Wayne |date=November 4, 1969 |title=I-90 Rites Open 4-Laner To Area |page=1 |work=La Crosse Tribune |url=https://www.newspapers.com/clip/89956768/i-90-rites-open-4-laner-to-area/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 3, 2021 |archive-url=https://web.archive.org/web/20211203102938/https://www.newspapers.com/clip/89956768/i-90-rites-open-4-laner-to-area/ |url-status=live }}</ref> The section around Albany, New York, built as a toll-free alternative to the New York Thruway, was completed in 1976 with a connection to the Berkshire Connector, which had been originally intended to carry the I-90 designation across the Hudson River.<ref>{{cite web |year=1977 |title=New York State Department of Transportation Annual Report, 1976 |page=7 |url=https://nysl.ptfs.com/data/Library1/Library1/pdf/1760149_1976.pdf |publisher=[[New York State Department of Transportation]] |via=[[New York State Library]] |accessdate=December 9, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233354/https://nysl.ptfs.com/aw-server/rest/product/purl/NYSL/s/ba9fa552-d3d2-4ebe-889d-367b1a1adfbb |url-status=live }}</ref><ref>{{cite news |last=O'Brien |first=Tim |date=March 25, 2010 |title=Thruway connector's name spurs question |url=http://blog.timesunion.com/gettingthere/thruway-connectors-name-spurs-question/697/ |work=Times Union |url-status=dead |archive-url=https://web.archive.org/web/20160213195904/http://blog.timesunion.com/gettingthere/thruway-connectors-name-spurs-question/697/ |archive-date=February 13, 2016 |accessdate=December 9, 2021}}</ref> South Dakota completed its final section in November 1976, which created an unbroken stretch of four-lane highway from the Wyoming state line to Boston but some intersections remained.<ref>{{cite news |date=November 19, 1976 |title=I-90 ceremony to be held near Spearfish |page=5 |work=[[Mitchell Daily Republic]] |url=https://www.newspapers.com/clip/89956130/i-90-ceremony-to-be-held-near-spearfish/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 3, 2021 |archive-url=https://web.archive.org/web/20211203092825/https://www.newspapers.com/clip/89956130/i-90-ceremony-to-be-held-near-spearfish/ |url-status=live }}</ref> The Minnesota segment of I-90 was declared complete in September 1978 with a dedication at Blue Earth, where a golden line was painted to emulate the [[golden spike]] of the [[first transcontinental railroad]].<ref>{{cite news |last=Coleman |first=Nick |date=September 24, 1978 |title=Blue Earth puts Golden Spike in Interstate 90 |pages=[https://www.newspapers.com/clip/89956184/blue-earth-puts-golden-spike-in/ 1A], [https://www.newspapers.com/clip/89956211/blue-earth-puts-golden-spike-in/ 16A] |work=[[Minneapolis Tribune]] |url=https://www.newspapers.com/clip/89956184/blue-earth-puts-golden-spike-in/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 3, 2021 |archive-url=https://web.archive.org/web/20211203092818/https://www.newspapers.com/clip/89956184/blue-earth-puts-golden-spike-in/ |url-status=live }}</ref> Two months later, Ohio finished its last section west of Cleveland.<ref>{{cite news |last=Hosie |first=Ron |date=November 4, 1978 |title=Heckler draws retort from Rhodes |page=3 |work=[[Dayton Daily News]] |url=https://www.newspapers.com/clip/90008915/heckler-draws-retort-from-rhodes/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233912/https://www.newspapers.com/clip/90008915/heckler-draws-retort-from-rhodes/ |url-status=live }}</ref> The western states were the last to complete their segments of I-90. Wyoming opened its final section, from the Montana state line to Sheridan, in July 1985 and dedicated it three months later following the completion of Montana's cross-border section.<ref>{{cite news |last=Thackeray |first=Lorna |date=October 10, 1985 |title=Governors plan Interstate 90 christening |page=2B |work=[[The Billings Gazette]] |url=https://www.newspapers.com/clip/90333934/governors-plan-interstate-90-christening/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 10, 2021 |archive-url=https://web.archive.org/web/20211210064837/https://www.newspapers.com/clip/90333934/governors-plan-interstate-90-christening/ |url-status=live }}</ref> The last two-lane section in Montana, near [[Springdale, Montana|Springdale]], was widened to four lanes in May 1987.<ref>{{cite news |date=May 14, 1987 |title=I-90 finally done |page=9A |work=Great Falls Tribune |agency=Associated Press |url=https://www.newspapers.com/clip/89956022/i-90-finally-done/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233910/https://www.newspapers.com/clip/89956022/i-90-finally-done/ |url-status=live }}</ref><!-- several sections in Montana remained an undivided highway until reconstruction in the 1990s.{{cn|date=December 2021}}--> One of the last rural sections of I-90 to be built was through [[Wallace, Idaho]], which placed its downtown on the [[National Register of Historic Places]] in 1976 to prevent its demolition for the freeway. The {{convert|1.5|mi|km|adj=mid}} elevated freeway bypassed Wallace to the north and cost $42 million (equivalent to ${{Inflation|US-GDP|42|1991}} million in {{Inflation-year|US-GDP}} dollars){{inflation-fn|US-GDP}} to construct. It opened on September 5, 1991, and the city ceremonially retired the last [[traffic signal|stoplight]] on I-90 a week later.<ref>{{cite news |last=Devlin |first=Sherry |date=September 8, 1991 |title=No Stopping Now |page=E1 |work=The Missoulian |url=https://www.newspapers.com/clip/90334418/no-stopping-now/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 10, 2021 |archive-url=https://web.archive.org/web/20211210064843/https://www.newspapers.com/clip/90334418/no-stopping-now/ |url-status=live }}</ref><ref>{{cite news |last=Free |first=Cathy |date=September 15, 1991 |title=Engineer pleased with his Wallace freeway 'work of art' |page=B3 |work=The Spokesman-Review |url=https://www.newspapers.com/clip/89735440/engineer-pleased-with-his-wallace/ |via=Newspapers.com |accessdate=November 28, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233910/https://www.newspapers.com/clip/89735440/engineer-pleased-with-his-wallace/ |url-status=live }}</ref> The Idaho section was declared fully complete in July 1992 after the Veterans Memorial Centennial Bridge opened near Coeur d'Alene.<ref>{{cite news |last=Foster |first=J. Todd |date=July 4, 1992 |title=New I-90 stretch offers scenery, safety |page=A1 |work=The Spokesman-Review |url=https://www.newspapers.com/clip/84197254/new-i-90-stretch-offers-scenery-safety/ |via=Newspapers.com |accessdate=December 9, 2021 |archive-date=December 10, 2021 |archive-url=https://web.archive.org/web/20211210064835/https://www.newspapers.com/clip/84197254/new-i-90-stretch-offers-scenery-safety/ |url-status=live }}</ref> ===Completion and later projects=== [[File:Interstate 90 floating bridges after Blue Angels performance - 01.jpg|thumb|right|The [[Homer M. Hadley Memorial Bridge|Homer M. Hadley]] (left) and [[Lacey V. Murrow Memorial Bridge|Lacey V. Murrow]] (right) floating bridges carry I-90 across [[Lake Washington]] from [[Seattle]] to [[Mercer Island, Washington|Mercer Island]].|alt=View of two bridges carrying a divided highway over a lake with light traffic]] Washington was the last state to complete its section of I-90, primarily due to disputes and litigation over the Seattle–Bellevue section.<ref name="Times-90Saga"/> The Snoqualmie Pass section was completed in 1981 with a viaduct for westbound traffic that stands {{convert|150|ft|m}} over Denny Creek.<ref>{{cite news |last=O'Ryan |first=John |date=December 4, 1981 |title=Cars whiz along on feared bridge |page=C1 |work=[[Seattle Post-Intelligencer]]}}</ref> The viaduct replaced an earlier plan for a ground-level freeway at the behest of environmentalists; the [[Mountains to Sound Greenway]] was established in 1990 along the corridor between Seattle and [[Thorp, Washington|Thorp]] to preserve wilderness and recreational areas and was designated as a National Scenic Byway in 1998, a first for an Interstate Highway.<ref>{{cite news |last=Senos |first=Rene |date=April 18, 2002 |title=Blending scenery and ecology |url=https://www.djc.com/news/en/11132529.html |work=[[Seattle Daily Journal of Commerce]] |accessdate=December 1, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233921/https://www.djc.com/news/en/11132529.html |url-status=live }}</ref><ref>{{cite web |last=Ott |first=Jennifer |date=May 18, 2021 |title=Mountains to Sound Greenway Trust |url=https://www.historylink.org/File/21231 |work=[[HistoryLink]] |accessdate=December 1, 2021 |archive-date=October 9, 2022 |archive-url=https://web.archive.org/web/20221009233856/https://www.historylink.org/File/21231 |url-status=live }}</ref> The extension into Seattle was completed in stages between 1989 and 1993 and cost $1.56 billion (equivalent to ${{format price|{{Inflation|US-GDP|1560000000|1993}}}} in {{Inflation-year|US-GDP}} dollars){{inflation-fn|US-GDP}} to construct.<ref>{{cite news |last=Cabrera |first=Luis |date=September 11, 1993 |title=Floating bridge finishes interstate |page=5A |work=[[Detroit Free Press]] |agency=Associated Press |url=https://www.newspapers.com/clip/22449728/floating_bridge_finishes_interstate/ |via=Newspapers.com |access-date=August 2, 2018 |archive-url=https://web.archive.org/web/20180803074519/https://www.newspapers.com/clip/22449728/floating_bridge_finishes_interstate/ |archive-date=August 3, 2018 |url-status=live }}</ref> The project involved construction of a [[Homer M. Hadley Memorial Bridge|new floating bridge]], expansion of the Mount Baker Ridge Tunnel, addition of [[freeway lid|lids]] with parks, and extensive mitigation for environmental and social impacts.<ref name="Times-90Saga"/><ref>{{cite news |last=Corr |first=O. Casey |date=June 2, 1989 |title=The road to recovery—new homes, new park |page=A1 |work=Seattle Post-Intelligencer}}</ref> The project was originally planned to be completed in 1992, but was delayed a year due to the sinking of the [[Lacey V. Murrow Memorial Bridge|original floating bridge]] during renovations in November 1990; the bridge was rebuilt and opened for eastbound traffic on September 12, 1993.<ref name="Times-90Saga"/><ref>{{cite news |last=Gough |first=William |date=June 22, 1989 |title=That'll be one bridge—to go |page=A1 |work=The Seattle Times}}</ref> Extensions at both termini of I-90 were completed in the early 2000s as part of separate projects. The west end at Washington State Route 519 in Seattle was rebuilt as a series of ramps near [[Safeco Field]] (now T-Mobile Park) to replace an existing intersection.<ref>{{cite news |last=Lindblom |first=Mike |date=May 29, 2003 |title=Some I-90 drivers get turned around |page=A1 |work=The Seattle Times}}</ref> A component of the [[Big Dig]] megaproject in Boston that extended I-90 east by {{convert|3.5|mi|km}} under Fort Point Channel and Boston Harbor to Logan International Airport opened on January 18, 2003,<ref name="MassDOT-BigDig"/> at a cost of $6.5 billion (equivalent to ${{format price|{{Inflation|US-GDP|6500000000|2003}}}} in {{Inflation-year|US-GDP}} dollars).{{inflation-fn|US-GDP}}<ref>{{cite news |last=Lewis |first=Raphael |date=January 18, 2003 |title=Pike tunnel finished, and new era begins |page=A1 |work=The Boston Globe |url=http://www.boston.com/dailyglobe2/018/metro/Pike_tunnel_finished_and_new_era_begins+.shtml |url-status=dead |archive-url=https://web.archive.org/web/20030124144148/http://www.boston.com/dailyglobe2/018/metro/Pike_tunnel_finished_and_new_era_begins+.shtml |archive-date=January 24, 2003 |accessdate=December 9, 2021}}</ref> The Fort Point Channel tunnel later closed in July 2006 due to a [[Big Dig ceiling collapse|ceiling panel collapse]] that killed one person. It reopened in January 2007 after repairs and retrofit work.<ref>{{cite news |last=Jefferson |first=Brandie M. |date=January 14, 2007 |title=Traffic begins flowing through Big Dig tunnel where woman died |url=http://archive.boston.com/news/local/massachusetts/articles/2007/01/14/traffic_begins_flowing_through_big_dig_tunnel_where_woman_died/ |work=The Boston Globe |agency=Associated Press |accessdate=December 9, 2021 |archive-date=December 10, 2021 |archive-url=https://web.archive.org/web/20211210073558/http://archive.boston.com/news/local/massachusetts/articles/2007/01/14/traffic_begins_flowing_through_big_dig_tunnel_where_woman_died/ |url-status=live }}</ref> Other sections of I-90 have been rebuilt or replaced to accommodate modern needs and meet updated safety standards. The {{convert|11|mi|km|adj=mid}} Dan Ryan Expressway in Chicago was reconstructed over a two-year period from 2006 to 2007 at a cost of $975 million (equivalent to ${{format price|{{Inflation|US-GDP|975000000|2007}}}} in {{Inflation-year|US-GDP}} dollars),{{inflation-fn|US-GDP}} adding auxiliary lanes and improved bridges. The section carried over 300,000 daily vehicles prior to the project.<ref>{{cite news |last=Haggerty |first=Ryan |date=October 26, 2007 |title=All lanes will be open on the Dan Ryan |at=sec. 2, p. 2 |url=http://www.chicagotribune.com/news/local/chi-danryan_weboct26,0,7051621.story |work=Chicago Tribune |url-status=dead |archive-url=https://web.archive.org/web/20071227191626/http://www.chicagotribune.com/news/local/chi-danryan_weboct26,0,7051621.story |archive-date=December 27, 2007 |accessdate=December 10, 2021}}</ref> Cleveland's [[Innerbelt Bridge]], which carried I-90 over the Cuyahoga River, was replaced with the George V. Voinovich Bridges, which opened in November 2013 for westbound traffic and September 2016 for eastbound traffic.<ref>{{cite news |last=Christ |first=Ginger |date=September 14, 2016 |title=Second George V. Voinovich Bridge (Inner Belt Bridge) opens to traffic Sept. 25 |url=https://www.cleveland.com/metro/2016/09/george_v_voinovich_bridge_inne.html |work=The Plain Dealer |accessdate=December 10, 2021 |archive-date=December 10, 2021 |archive-url=https://web.archive.org/web/20211210080002/https://www.cleveland.com/metro/2016/09/george_v_voinovich_bridge_inne.html |url-status=live }}</ref> The old bridge was [[Building implosion|imploded]] with explosives on July 12, 2014, and dismantled by the end of the year.<ref>{{cite news |last=Grant |first=Alison |date=July 12, 2014 |title=55-year-old Inner Belt Bridge vanishes in a half second |url=https://www.cleveland.com/metro/2014/07/55-year-old_inner_belt_bridge.html |work=The Plain Dealer |accessdate=December 10, 2021 |archive-date=December 10, 2021 |archive-url=https://web.archive.org/web/20211210080003/https://www.cleveland.com/metro/2014/07/55-year-old_inner_belt_bridge.html |url-status=live }}</ref> The states of Minnesota and Wisconsin replaced the [[I-90 Mississippi River Bridge|Dresbach Bridge]] over the Mississippi River in 2016; the project was spearheaded by Minnesota following the [[I-35W Mississippi River bridge#Collapse|I-35W Mississippi River bridge collapse]] in 2007.<ref name="LCT-Bridge"/> ==Names and designations== [[File:AMVETS memorial sign on Thruway.jpg|thumb|right|AMVETS Memorial Highway sign on I-90 in New York|alt=A blue sign with the I-90 sign and "AMVETS Memorial Highway"]] I-90 carries several commemorative names designated by state governments, some of which are shared between multiple states.<ref name="google"/> Washington and Minnesota designated their sections as the "American Veterans Memorial Highway".<ref>{{cite web |year=1991 |title=RCW 47.17.140: State route No. 90—American Veterans Memorial Highway—Washington green highway. |url=https://app.leg.wa.gov/rcw/default.aspx?cite=47.17.140 |work=[[Revised Code of Washington]] |publisher=[[Washington State Legislature]] |accessdate=December 1, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201082244/https://app.leg.wa.gov/rcw/default.aspx?cite=47.17.140 |url-status=live }}</ref><ref>{{cite map |author=MnDOT Office of Transportation System Management |date=October 17, 2019 |title=Memorial Highways & Bridges |url=https://www.dot.state.mn.us/maps/gdma/data/maps/memorial_routes.pdf |scale=Scale not given |location=St. Paul |publisher=Minnesota Department of Transportation |accessdate=November 30, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201051409/https://www.dot.state.mn.us/maps/gdma/data/maps/memorial_routes.pdf |url-status=live }}</ref> In the states of Idaho,<ref>{{cite web |title=Idaho Statues 40-513C: Designation of Purple Heart Trail |year=2008 |url=https://legislature.idaho.gov/statutesrules/idstat/title40/t40ch5/sect40-513c/ |publisher=[[Idaho Legislature]] |access-date=December 1, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201082242/https://legislature.idaho.gov/statutesrules/idstat/title40/t40ch5/sect40-513c/ |url-status=live }}</ref> Montana,<ref>{{cite web |title=§ 60-1-210: Purple Heart Trail |url=https://leg.mt.gov/bills/2014/mca/60/1/60-1-210.htm |work=Montana Code Annotated 2014 |publisher=[[Montana Legislature]] |accessdate=December 1, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201080644/https://leg.mt.gov/bills/2014/mca/60/1/60-1-210.htm |url-status=live }}</ref> and South Dakota, I-90 is part of the [[Purple Heart Trail]], which honors [[Purple Heart]] recipients.<ref>{{cite news |date=August 5, 2012 |title=Interstate 90 dedication set for 'Purple Heart Trail' |url=https://rapidcityjournal.com/news/local/communities/belle_fourche/interstate-90-dedication-set-for-purple-heart-trail/article_d13c6de5-a088-5057-974f-a7ee0b5fe60f.html |work=Rapid City Journal |url-access=subscription |accessdate=December 1, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201082244/https://rapidcityjournal.com/news/local/communities/belle_fourche/interstate-90-dedication-set-for-purple-heart-trail/article_d13c6de5-a088-5057-974f-a7ee0b5fe60f.html |url-status=live }}</ref> In Wisconsin, I-90 and I-94 were designated as the Wisconsin Veterans Memorial Highway in 1987.<ref>{{cite web |title=Commemorative highways and bridges |url=https://wisconsindot.gov/pages/travel/road/comm-hwys/default.aspx |publisher=Wisconsin Department of Transportation |accessdate=November 30, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201051409/https://wisconsindot.gov/pages/travel/road/comm-hwys/default.aspx |url-status=live }}</ref> From [[Lorain, Ohio]],<ref>{{cite web |date=August 4, 1978 |title=Ohio Revised Code Section 5533.35: Amvets highway |url=https://codes.ohio.gov/assets/laws/revised-code/authenticated/55/5533/5533.35/8-4-1978/5533.35-8-4-1978.pdf |work=[[Ohio Revised Code]] |publisher=[[Ohio General Assembly]] |accessdate=December 1, 2021 |archive-date=November 30, 2021 |archive-url=https://web.archive.org/web/20211130181321/https://codes.ohio.gov/assets/laws/revised-code/authenticated/55/5533/5533.35/8-4-1978/5533.35-8-4-1978.pdf |url-status=live }}</ref> through Pennsylvania and New York, I-90 is officially designated as the "AMVETS Memorial Highway".<ref>{{cite web |date=July 11, 1990 |title=P.L. 453, No. 110: AMVETS Memorial Highway – Designation |url=https://www.legis.state.pa.us/cfdocs/legis/li/uconsCheck.cfm?yr=1990&sessInd=0&act=110 |work=[[Pennsylvania Consolidated Statutes|Pennsylvania Unconsolidated Statutes]] |publisher=[[Pennsylvania General Assembly]] |accessdate=December 1, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201082246/https://www.legis.state.pa.us/cfdocs/legis/li/uconsCheck.cfm?yr=1990&sessInd=0&act=110 |url-status=live }}</ref><ref>{{cite news |date=May 9, 1991 |title=Thruway Ceremony Planned for May 17 |page=10 |work=[[Hamburg Sun]] |url=https://www.newspapers.com/clip/89848246/thruway-ceremony-planned-for-may-17/ |via=Newspapers.com |accessdate=December 1, 2021 |archive-date=December 1, 2021 |archive-url=https://web.archive.org/web/20211201082241/https://www.newspapers.com/clip/89848246/thruway-ceremony-planned-for-may-17/ |url-status=live }}</ref> ==Major intersections== ;Washington<ref name="WSDOT-Map"/> : {{jct|state=WA|SR|519}} in downtown [[Seattle]] : {{jct|country=USA|I|5}} in downtown Seattle : {{jct|country=USA|I|405|dab1=Washington}} in [[Bellevue, Washington|Bellevue]] near Seattle : {{jct|country=USA|I|82|US|97}} in [[Ellensburg, Washington|Ellensburg]] : {{jct|country=USA|US|395}} in [[Ritzville, Washington|Ritzville]]; joined for {{convert|61|mi|km}} until [[Spokane, Washington|Spokane]] : {{jct|country=USA|US|2|US|395}} in [[Spokane, Washington|Spokane]]; joined for {{convert|4|mi|km}} ;Idaho<ref name="ID-Map">{{cite map |year=2021 |title=Idaho Official State Highway Map |scale=1:1,248,000 |url=https://visitidaho.org/content/uploads/2021/05/Idaho_Highway_Map.pdf |location=Boise |publisher=Idaho Transportation Department |accessdate=April 11, 2022 |archive-date=April 18, 2022 |archive-url=https://web.archive.org/web/20220418193832/https://visitidaho.org/content/uploads/2021/05/ITC_HighwayMap-2021.pdf |url-status=live }}</ref> : {{jct|country=USA|US|95}} in [[Coeur d'Alene, Idaho|Coeur d'Alene]] ;Montana<ref name="MT-Map"/> : {{jct|country=USA|US|93}} near [[Missoula, Montana|Missoula]]; joined for {{convert|5|mi|km}} : {{jct|country=USA|US|12}} in Missoula; joined for {{convert|69|mi|km}} until [[Garrison, Montana|Garrison]] : {{jct|country=USA|I|15}} near [[Butte, Montana|Butte]]; joined for {{convert|8|mi|km}} through Butte : {{jct|country=USA|I|115}} in Butte : {{jct|country=USA|US|191}} in [[Bozeman, Montana|Bozeman]]; joined for {{convert|58|mi|km}} until [[Big Timber, Montana|Big Timber]] : {{jct|country=USA|US|89}} in [[Livingston, Montana|Livingston]]; joined for {{convert|7|mi|km}} : {{jct|country=USA|US|212}} in [[Laurel, Montana|Laurel]]; joined for {{convert|77|mi|km}} until [[Crow Agency, Montana|Crow Agency]] : {{jct|country=USA|US|87}} in [[Billings, Montana|Billings]]; joined for {{convert|128|mi|km}} until [[Sheridan, Wyoming]] : {{jct|country=USA|I|94}} near [[Billings, Montana|Billings]] ;Wyoming<ref name="WY-Map"/> : {{jct|country=USA|US|14}} in [[Ranchester, Wyoming|Ranchester]]; joined for {{convert|16|mi|km}} until [[Sheridan, Wyoming|Sheridan]] : {{jct|country=USA|US|87}} near [[Buffalo, Wyoming|Buffalo]]; joined for {{convert|12|mi|km}} : {{jct|country=USA|I|25}} in [[Buffalo, Wyoming|Buffalo]] : {{jct|country=USA|US|14|US|16}} in [[Gillette, Wyoming|Gillette]]; joined for {{convert|25|mi|km}} until [[Moorcroft, Wyoming|Moorcroft]] : {{jct|country=USA|US|14}} in [[Sundance, Wyoming|Sundance]]; joined for {{convert|132|mi|km}} until [[Wall, South Dakota]] ;South Dakota<ref name="SD-Map"/> : {{jct|country=USA|US|85}} in [[Spearfish, South Dakota|Spearfish]]; joined for {{convert|8|mi|km}} : {{jct|country=USA|I|190|dab1=South Dakota|US|16}} in [[Rapid City, South Dakota|Rapid City]] : {{jct|country=USA|US|83}} in [[Murdo, South Dakota|Murdo]]; joined for {{convert|22|mi|km}} until [[Vivian, South Dakota|Vivian]] : {{jct|country=USA|US|183}} in [[Presho, South Dakota|Presho]] : {{jct|country=USA|US|281}} near [[Plankinton, South Dakota|Plankinton]] : {{jct|country=USA|I|29}} in [[Sioux Falls, South Dakota|Sioux Falls]] : {{jct|country=USA|I|229|dab1=South Dakota}} in Sioux Falls ;Minnesota<ref name="MN-Map"/> : {{jct|country=USA|US|75}} in [[Luverne, Minnesota|Luverne]] : {{jct|country=USA|US|59}} in [[Worthington, Minnesota|Worthington]] : {{jct|country=USA|US|71}} in [[Jackson, Minnesota|Jackson]] : {{jct|country=USA|US|169}} in [[Blue Earth, Minnesota|Blue Earth]] : {{jct|country=USA|I|35}} in [[Albert Lea, Minnesota|Albert Lea]] : {{jct|country=USA|US|218}} in [[Austin, Minnesota|Austin]]; joined for {{convert|3|mi|km}} : {{jct|country=USA|US|63}} in [[Stewartville, Minnesota|Stewartville]] : {{jct|country=USA|US|52}} in [[Rochester, Minnesota|Rochester]] : {{jct|country=USA|US|14|US|61}} in [[Dakota, Minnesota|Dakota]]; joined for {{convert|5|mi|km}} until [[La Crescent, Minnesota|La Crescent]] ;Wisconsin<ref name="WI-Map"/> : {{jct|country=USA|US|53}} in [[La Crosse, Wisconsin|La Crosse]]; joined for {{convert|2|mi|km}} until [[Onalaska, Wisconsin|Onalaska]] : {{jct|country=USA|US|12}} in [[Tomah, Wisconsin|Tomah]], [[Lyndon, Juneau County, Wisconsin|Lyndon]], and [[Delton, Wisconsin|Delton]] : {{jct|country=USA|I|94}} in Tomah; joined for {{convert|92|mi|km}} until [[Madison, Wisconsin|Madison]] : {{jct|country=USA|I|39}} in [[Portage, Wisconsin|Portage]]; joined for {{convert|95|mi|km}} until [[Cherry Valley, Illinois]] : {{jct|country=USA|US|51}} in [[Burke, Wisconsin|Burke]] : {{jct|country=USA|US|151}} in Madison : {{jct|country=USA|US|12|US|18}} in Madison : {{jct|country=USA|US|51}} in [[Christiana, Dane County, Wisconsin|Christiana]]; joined for {{convert|4|mi|km}} until [[Albion, Dane County, Wisconsin|Albion]] : {{jct|country=USA|I|43}} in [[Beloit, Wisconsin|Beloit]] ;Illinois<ref name="ILTollway-Map"/> : {{jct|country=USA|US|51}} in [[South Beloit, Illinois|South Beloit]]; joined for {{convert|17|mi|km}} until [[Rockford, Illinois|Rockford]] : {{jct|country=USA|US|20}} in [[Hampshire, Illinois|Hampshire]] : {{jct|country=USA|I|290|dab1=Illinois}} in [[Schaumburg, Illinois|Schaumburg]] : {{jct|country=USA|I|294|dab1=Illinois}} in [[Rosemont, Illinois|Rosemont]] near Chicago : {{jct|country=USA|I|190|dab1=Illinois}} to [[O'Hare International Airport]] near Chicago : {{jct|country=USA|I|94}} in [[Chicago]]; joined for {{convert|17|mi|km}} : {{jct|country=USA|I|290|dab1=Illinois}} in downtown Chicago : {{jct|country=USA|I|55}} in downtown Chicago : {{jct|country=USA|US|12|US|20|US|41}} near Chicago ;Indiana<ref name="IN-Map"/> : {{jct|country=USA|US|41}} in [[Hammond, Indiana|Hammond]] : {{jct|country=USA|US|12}} in [[Gary, Indiana|Gary]] : {{jct|country=USA|I|65|US|12|US|20}} in Gary : {{jct|country=USA|I|94|US|6}} in [[Lake Station, Indiana|Lake Station]] : {{jct|country=USA|I|80}} in Lake Station; joined for {{convert|278|mi|km}} until [[Elyria, Ohio]] : {{jct|country=USA|US|421}} in [[New Durham Township, LaPorte County, Indiana|New Durham Township]] : {{jct|country=USA|US|31}} in [[South Bend, Indiana|South Bend]] : {{jct|country=USA|US|131}} in [[York Township, Elkhart County, Indiana|York Township]] : {{jct|country=USA|I|69}} in [[Fremont, Indiana|Fremont]] ;Ohio<ref name="OH-Map"/> : {{jct|country=USA|US|20}} in [[Maumee, Ohio|Maumee]] : {{jct|country=USA|I|75}} in [[Rossford, Ohio|Rossford]] near [[Toledo, Ohio|Toledo]] : {{jct|country=USA|I|280|dab1=Ohio}} in [[Lake Township, Wood County, Ohio|Lake Township]] : {{jct|country=USA|US|250}} near [[Milan, Ohio|Milan]] : {{jct|country=USA|US|42}} in [[Cleveland]] : {{jct|country=USA|I|71}} in Cleveland : {{jct|country=USA|I|490|dab1=Ohio}} in Cleveland : {{jct|country=USA|US|422}} in downtown Cleveland : {{jct|country=USA|I|77}} in downtown Cleveland : {{jct|country=USA|US|322}} in downtown Cleveland : {{jct|country=USA|US|6}} in downtown Cleveland : {{jct|country=USA|US|20}} in [[Euclid, Ohio|Euclid]] : {{jct|country=USA|I|271}} in [[Willoughby Hills, Ohio|Willoughby Hills]] near Cleveland ;Pennsylvania<ref name="PA-Map"/> : {{jct|country=USA|US|6N}} in [[Springfield Township, Erie County, Pennsylvania|Springfield Township]] : {{jct|country=USA|I|79}} near [[Erie, Pennsylvania|Erie]] : {{jct|country=USA|US|19}} near Erie : {{jct|country=USA|I|86|dab1=east}} near Erie : {{jct|country=USA|US|20}} near [[North East, Pennsylvania|North East]] ;New York<ref name="NYS-Map"/> : {{jct|country=USA|US|20}} in [[Hanover, New York|Hanover]] : {{jct|country=USA|US|219}} in [[West Seneca, New York|West Seneca]] : {{jct|country=USA|I|190|dab1=New York}} in [[Buffalo, New York|Buffalo]] : {{jct|country=USA|I|290|dab1=New York}} in [[Williamsville, New York|Williamsville]] near Buffalo : {{jct|country=USA|I|490|dab1=New York}} near [[Bergen, New York|Bergen]] : {{jct|country=USA|I|390|dab1=New York}} near [[Rochester, New York|Rochester]] : {{jct|country=USA|I|490|dab1=New York}} near [[Victor, New York|Victor]] : {{jct|country=USA|I|690|dab1=New York}} near [[Syracuse, New York|Syracuse]] : {{jct|country=USA|I|81}} in Syracuse : {{jct|country=USA|I|481|dab1=New York}} near Syracuse : {{jct|country=USA|I|790|dab1=New York}} in [[Utica, New York|Utica]] : {{jct|country=USA|I|890|dab1=New York}} near [[Schenectady, New York|Schenectady]] : {{jct|country=USA|I|88|dab1=east}} in [[Rotterdam, New York|Rotterdam]] : {{jct|country=USA|I|890|dab1=New York}} near Schenectady : {{jct|state=NY|I|87}} in [[Albany, New York|Albany]] : {{jct|country=USA|US|9}} in downtown Albany : {{jct|country=USA|I|787|dab1=New York}} in downtown Albany : {{jct|country=USA|US|4}} in [[East Greenbush, New York|East Greenbush]] : {{jct|country=USA|US|9|US|20}} in [[Schodack, New York|Schodack]] ;Massachusetts<ref name="MA-Map"/> : {{jct|country=USA|US|20}} in [[Lee, Massachusetts|Lee]] : {{jct|country=USA|US|202}} in [[Westfield, Massachusetts|Westfield]] : {{jct|country=USA|I|91|US|5}} in [[West Springfield, Massachusetts|West Springfield]] : {{jct|country=USA|I|291|dab1=Massachusetts}} in [[Chicopee, Massachusetts|Chicopee]] near [[Springfield, Massachusetts|Springfield]] : {{jct|country=USA|I|84|dab1=east}} in [[Sturbridge, Massachusetts|Sturbridge]] : {{jct|country=USA|I|395|dab1=Connecticut|I|290|dab2=Massachusetts}} in [[Auburn, Massachusetts|Auburn]] : {{jct|state=MA|SR|146}} in [[Millbury, Massachusetts|Millbury]] : {{jct|country=USA|I|495|dab1=Massachusetts}} in [[Hopkinton, Massachusetts|Hopkinton]] : {{jct|country=USA|I|95}} in [[Weston, Massachusetts|Weston]] : {{jct|country=USA|I|93}} in [[Boston]] : {{jct|state=MA|SR|1A|extra=Airport}}/[[Logan International Airport]] in Boston ==Auxiliary routes== :''Source: FHWA''<ref name="FHWA-Auxiliary">{{cite web |date=January 26, 2022 |title=Table 2: Auxiliary Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of December 31, 2021 |url=https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table02.cfm |work=Route Log and Finder List |publisher=Federal Highway Administration |accessdate=February 10, 2022 |archive-date=July 3, 2017 |archive-url=https://web.archive.org/web/20170703182115/https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table02.cfm |url-status=live }}</ref> * [[Rapid City, South Dakota]]: [[Interstate 190 (South Dakota)|I-190]] * [[Chicago|Chicago, Illinois]]: [[Interstate 190 (Illinois)|I-190]], [[Interstate 290 (Illinois)|I-290]] * [[Cleveland|Cleveland, Ohio]]: [[Interstate 490 (Ohio)|I-490]] * [[Buffalo, New York]]: [[Interstate 190 (New York)|I-190]], [[Interstate 290 (New York)|I-290]], [[Interstate 990|I-990]] (not directly connected) * [[Rochester, Monroe County, New York|Rochester, New York]]: [[Interstate 390|I-390]], [[Interstate 490 (New York)|I-490]], [[Interstate 590|I-590]] (not directly connected) * [[Syracuse, New York]]: [[Interstate 690|I-690]] * [[Utica, New York]]: [[Interstate 790|I-790]] * [[Schenectady, New York]]: [[Interstate 890|I-890]] * [[Worcester, Massachusetts]]: [[Interstate 190 (Massachusetts)|I-190]] (not directly connected), [[Interstate 290 (Massachusetts)|I-290]] I-90 in New York is the only Interstate Highway to have a complete set of auxiliary routes, all nine possible three-digit route numbers, within a single state.<ref name="FHWA-Facts"/> Eight of the thirteen states that the highway passes through do not have auxiliary routes of I-90.<ref name="FHWA-Facts"/> ==See also== * [[Business routes of Interstate 90]] ==References== {{Reflist}} ==External links== {{commons category|Interstate 90}} {{Attached KML|display=title,inline}} * {{osmrelation-inline|303058}} * [https://www.aaroads.com/interstate-guide/i-090/ I-90 at Interstate-Guide.com] {{I-90 aux}} {{interstates}} {{Authority control}} {{DEFAULTSORT:I090}} [[Category:Interstate 90| ]] [[Category:Interstate Highway System|90]] [[Category:Roads with a reversible lane|90]]
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