Editing Cloverleaf interchange (section)

=== Beginning ===
The first cloverleaf interchange built in the United States was the Woodbridge Cloverleaf<ref name = C>{{Citation |title=The Woodbridge Cloverleaf: Onramps to Innovation |url=https://www.youtube.com/watch?v=25ujQBf3ads |language=en |access-date=2022-07-20}}</ref> at intersection of the [[Lincoln Highway]] ([[New Jersey Route 25|Route&nbsp;25]]) and [[Perth Amboy, New Jersey#Amboy Avenue|Amboy]]—now St. Georges—Avenue ([[New Jersey Route 4|Route&nbsp;4]]) (now [[U.S. Route 1/9|U.S.&nbsp;1/9]] and [[New Jersey Route 35|Route&nbsp;35]]) in [[Woodbridge Township, New Jersey]].<ref name=wrm>{{Cite web|title=The Cloverleaf Interchange| publisher=WhereRoadsMeet| access-date=2008-12-21| url=http://whereroadsmeet.8k.com/article/clover.htm|url-status=dead|archive-url=https://web.archive.org/web/20080514013630/http://www.whereroadsmeet.8k.com/article/clover.htm|archive-date=2008-05-14}}</ref><ref name=lat>{{cite news |last=MartÃn|first=Hugo|access-date=2008-12-21| title=A Major Lane Change|newspaper=[[Los Angeles Times]] |date=April 7, 2004 |url=https://www.latimes.com/archives/la-xpm-2004-apr-07-me-cloverleaf7-story.html}}</ref><ref name=big>{{cite book |last=Swift |first=Earl |date=2011 |title=The Big Roads |location=Boston; New York |publisher=Houghton Mifflin Harcourt |isbn= 978-0-618-81241-7|page=101 }}</ref> It opened in 1929,<ref>{{Cite web |title=Woodbridge Cloverleaf Historical Marker |url=https://www.hmdb.org/m.asp?m=126308 |access-date=2022-07-20 |website=www.hmdb.org |language=en}}</ref> although it has since been replaced with a [[partial cloverleaf interchange]].<ref name=njdot>{{Cite web| title=Routes 1&9-35 Interchange Improvements, Project Description, Construction Updates, Commuter Information|publisher=[[New Jersey Department of Transportation]]|access-date=2008-12-21| url=http://www.state.nj.us/transportation/commuter/roads/routes1935/description.shtm }}</ref> Before the cloverleaf was replaced in the late 2000s, it was judged eligible for inclusion in the [[National Register of Historic Places]]. Because of this, a commemorative film <ref name = C/> was made of the cloverleaf.<ref>{{Cite web |title=Woodbridge Cloverleaf |url=http://www.hunterresearch.com/woodbridge-cloverleaf |access-date=2022-07-20 |website=Hunter Research, Inc. |language=en-US}}</ref> The original cloverleaf interchange design was adapted by the Rudolph and Delano building firm from [[Philadelphia]], from a photo Delano saw on a magazine cover about a highway in [[Buenos Aires]], [[Argentina]]. The original inventor is unknown.

The first cloverleaf west of the [[Mississippi River]] opened on August 20, 1931, at [[Watson Road]] and [[Lindbergh Boulevard]] near [[St.&nbsp;Louis, Missouri]], as part of an upgrade of [[U.S. Route 66|U.S.&nbsp;66]].<ref>[http://www.66postcards.com/hist.html A Bit of Missouri 66 History ]</ref>

The first cloverleaf interchange in Canada opened in 1937 at the junction of the Queen Elizabeth Way (QEW) and Provincial Highway 10 in Port Credit, Ontario (now a part of Mississauga, Ontario). As originally built, Highway 10 passed over the QEW. In 1962, the interchange was rebuilt with sub-collector roads along the QEW, and the orientation was also changed so that Highway 10 then passed under the QEW. The interchange was further modified between 2008 and 2010 by removing all but one loop ramp, creating a partial cloverleaf/diamond hybrid.

The cloverleaf was patented in [[Europe]] in [[Switzerland]] on October 15, 1928. The first cloverleaf in [[Europe]] opened in October 1935 at [[Slussen]] in central [[Stockholm]], [[Sweden]], followed in 1936 by [[Schkeuditzer Kreuz]] near [[Leipzig]], [[Germany]]. This is now the interchange between the [[Bundesautobahn 9|A&nbsp;9]] and [[Bundesautobahn 14|A&nbsp;14]], and has a single [[Overpass|flyover]] from the westbound A&nbsp;14 to the southbound A&nbsp;9. [[Kamener Kreuz]] was the first in continental Europe to open fully in 1937, at [[Bundesautobahn 1|A 1]] and [[Bundesautobahn 2|A 2]] near [[Dortmund]], [[Germany]].<!-- not completely sure about the accuracy of this-->