Editing Interstate 10 (section)

== History ==
{{expand section|date=December 2015}}
[[File:Christophercolumbustranscontinentalhighway.jpg|thumb|From 1976 to 2022, this sign in Santa Monica, California, (and predecessor signs) declared that I-10 is the "Christopher Columbus Transcontinental Highway", named for the Italian explorer and navigator]]

While the highway has existed as far back as 1957, the last section of the entire route to be completed was a section of the Papago Freeway from both I-17 interchanges (including the [[Deck Park Tunnel]]) in Phoenix, which opened in 1990.

Many widening projects have taken place on the interstate in the late 2000s. In [[Pensacola, Florida]], a {{convert|3|mi|km|adj=on|spell=in}} stretch of I-10 was widened to six lanes in 2008.<ref>{{cite web |url= http://www.i10-i110.com/projects/1.htm |title= Project Descriptions |publisher= [[Florida Department of Transportation]], [[Escambia County, Florida|Escambia County]] |access-date= November 21, 2006 |archive-url= https://web.archive.org/web/20150801224134/http://www.movingi-10forward.com/ |archive-date=August 1, 2015 }}</ref> In [[Tallahassee, Florida]], construction was completed in June 2009 on a project to widen a roughly {{convert|8|mi|km|adj=on|spell=in}} stretch of I-10 to six lanes (eight in some places).<ref>{{cite web |url= http://www.movingi-10forward.com/ |title= I-10: Project Description |work= Moving I-10 Forward |publisher= Florida Department of Transportation |access-date= November 21, 2006 |url-status= usurped |archive-url=https://web.archive.org/web/20150801224134/http://www.movingi-10forward.com/ |archive-date= August 1, 2015 }}</ref> In Tucson, Arizona, all exits between Prince Road and 22nd Street reopened after an extensive, three-year improvement project. I-10 was widened from six to eight lanes, and seven bridges and underpasses have been built to deal with congestion.<ref>{{cite web|url=http://www.i10tucsondistrict.com/construction.html|title=i10tucsondistrict.com|access-date=October 6, 2010|archive-url=https://web.archive.org/web/20101005015516/http://www.i10tucsondistrict.com/construction.html|archive-date=October 5, 2010|url-status=dead}}</ref> 

I-10 from the [[Interstate 8|I-8]] interchange in [[Casa Grande, Arizona|Casa Grande]] to [[Marana, Arizona|Marana]] was widened from four to six lanes from the second half of 2007, to its completion in 2009. Also in Arizona, from Verrado Way in [[Verrado]], [[Buckeye, Arizona|Buckeye]], all the way to [[Avondale, Arizona|Avondale]], the Interstate was widened throughout the late 2000s and early 2010s, with an [[HOV lane]] added between Estrella Parkway in [[Goodyear, Arizona|Goodyear]] and [[Arizona State Route 101|Loop&nbsp;101]].

[[Texas]] formerly shared the highest [[Speed limits in the United States|speed limit in the nation]] with [[Utah]]'s test section of [[Interstate 15|I-15]].{{Efn|Utah {{convert|80|mph|km/h|abbr=on}} speed limit}} The speed limit along I-10 from [[Kerr County, Texas|Kerr County]] to [[El Paso County, Texas|El Paso County]] was raised by the [[Texas Legislature]] to {{Convert|75|mph|km/h|abbr=on}} in 1999 and to {{convert|80|mph|km/h|abbr=on}} in 2006. However, the nighttime maximum speed limit remained {{convert|65|mph|km/h|abbr=on}}, and the daytime truck speed limit was {{Convert|70|mph|km/h|abbr=on}}. With {{convert|70000|mi|km}} of highway in Texas, the {{convert|432|mi|km|adj=on}} stretch of I-10, and {{Convert|89|mi|km}} of I-20, between Monahans and the I-10 interchange at the cusp of the [[Davis Mountains]], only a small percentage of roads were affected.<ref>{{cite web|url=https://www.foxnews.com/story/texas-raises-rural-speed-limits-to-80-mph|title=Texas Raises Rural Speed Limits to 80 MPH|work=Fox News|access-date=October 31, 2010|archive-date=May 22, 2010|archive-url=https://web.archive.org/web/20100522213903/http://www.foxnews.com/story/0,2933,197072,00.html|url-status=live}}</ref> On September 1, 2011, nighttime speed limits were eliminated, and the statutory maximum speed limit in Texas was increased from {{Convert|75|to|80|mph|km/h|abbr=on}}.

As far back as the 1990s, Florida and Alabama have considered a connector that would link [[Dothan, Alabama]], with I-10. In 2008, a proposal to make this new highway a toll road and to expedite its construction to complete it in five years surfaced. In 2012, federal funds previously set aside for the connector were allocated to other projects. In 2014, Florida sought bids for a feasibility study.<ref>{{cite news |url= http://www.wsfa.com/global/story.asp?s=7776794 |title= Dothan to I-10 Connection |location= West Montgomery, AL |publisher= [[WSFA-TV]] |date= January 25, 2008 |access-date= November 27, 2011 |archive-date= June 12, 2018 |archive-url= https://web.archive.org/web/20180612141305/http://www.wsfa.com/global/story.asp?s=7776794 |url-status= dead }}</ref><ref>{{cite news |url= http://www.wjhg.com/home/headlines/I-10-Connector-Funds-Released-to-Other-Projects-168532546.html |title= I-10 Connector Funds Released to Other Projects |location= Panama City, FL |publisher= [[WJHG-TV]] |date= September 4, 2012 |access-date= December 10, 2015 |archive-date= February 27, 2020 |archive-url= https://web.archive.org/web/20200227021646/https://www.wjhg.com/home/headlines/I-10-Connector-Funds-Released-to-Other-Projects-168532546.html |url-status= dead }}</ref><ref>{{cite news |url= http://www.dothaneagle.com/news/i--connector-back-on-the-table/article_0d4427a8-aa36-11e3-8b94-001a4bcf6878.html |title= I-10 Connector Back on the Table |work= [[Dothan Eagle]] |date= March 12, 2014 |access-date= December 10, 2015 |archive-date= October 24, 2021 |archive-url= https://web.archive.org/web/20211024173222/https://dothaneagle.com/news/i--connector-back-on-the-table/article_0d4427a8-aa36-11e3-8b94-001a4bcf6878.html |url-status= live }}</ref>