Editing Interstate 90 (section)

===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&nbsp;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&nbsp;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>