Editing Interstate 5 (section)

{{Short description|Interstate Highway along the West Coast of the United States}}
{{Redirect|I-5||I5 (disambiguation)}}
{{For|the Wedding Present song|Interstate 5 (song)}}
{{Use American English|date = April 2019}}
{{Use mdy dates|date=March 2014}}
{{Infobox road
|country=USA
|type=I
|route=5
|map={{maplink-road|frame-height=310|from=Interstate 5.map}}
|map_custom=yes
|map_notes=I-5 highlighted in red
|length_mi=1381.29
|length_ref=<ref name="fhwa">{{cite web|url=https://www.fhwa.dot.gov/planning/national_highway_system/interstate_highway_system/routefinder/table01.cfm?redirect|work=Route Log and Finder List|title=Table 1: Main Routes of the Dwight D. Eisenhower National System Of Interstate and Defense Highways as of December 31, 2013|date=December 31, 2013|author=Staff|publisher=[[Federal Highway Administration]]|access-date=March 17, 2014|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>
|established= 1956
|history=Completed in 1979
|direction_a=South
|terminus_a={{jct|state=BCN|FH|1|FH|1D}} at the [[Mexico–United States border|Mexican border]] in [[San Diego, California|San Diego, CA]]<!--San Ysidro is a neighborhood within the city of San Diego. We list the CITIES where key junctions are located, not neighborhoods or other sub-entities of cities.-->
|junction=<!-- Major junctions ONLY; Only 5-7 most major intersections and cities belong here; please read [[WP:USRD/STDS]] for more info; please do not add any more! -->
*{{jct|country=USA|I|8}} in [[San Diego, CA]]
*{{jct|country=USA|I|10|US|101}} in [[Los Angeles|Los Angeles, CA]]
*{{jct|country=USA|US|50}} in [[Sacramento, California|Sacramento, CA]]
*{{jct|country=USA|I|80}} in Sacramento, CA
*{{jct|country=USA|US|20}} in [[Albany, Oregon|Albany, OR]]
*{{jct|country=USA|I|84|dab1= Oregon–Utah|US|30}} in [[Portland, Oregon|Portland, OR]]
*{{jct|country=USA|US|101}} in [[Tumwater, Washington|Tumwater, WA]]
*{{jct|country=USA|I|90}} in [[Seattle|Seattle, WA]]
*{{jct|country=USA|US|2}} in [[Everett, Washington|Everett, WA]]
|direction_b=North
|terminus_b={{jct|province=BC|BC|99}} at the [[Peace Arch Border Crossing| Peace Arch Border Crossing]] in [[Blaine, Washington|Blaine, WA]]
|states=[[California]], [[Oregon]], [[Washington (state)|Washington]]
}}
'''Interstate&nbsp;5''' ('''I-5''') is the main north–south [[Interstate Highway System|Interstate Highway]] on the [[West Coast of the United States]], running largely parallel to the [[Pacific coast]] of the contiguous U.S. from [[Mexico]] to [[Canada]]. It travels through the states of [[California]], [[Oregon]], and [[Washington (state)|Washington]], serving several large cities on the West Coast, including [[San Diego]], [[Los Angeles]], [[Sacramento, California|Sacramento]], [[Portland, Oregon|Portland]], and [[Seattle]]. It is the only continuous Interstate highway to touch both the [[Mexico–United States border|Mexican]] and [[Canada–United States border|Canadian]] borders. Upon crossing the Mexican border at its southern terminus, the highway continues to [[Tijuana]], Baja California, as [[Mexican Federal Highway&nbsp;1]] (Fed.&nbsp;1). Upon crossing the Canadian border at its northern terminus, it continues to [[Vancouver]] as [[British Columbia Highway&nbsp;99]] (BC&nbsp;99).

I-5 was originally created in 1956 as part of the Interstate Highway System, but it was predated by several [[auto trail]]s and highways built in the early 20th&nbsp;century. The [[Pacific Highway (United States)|Pacific Highway]] was built in the 1910s and 1920s by the states of California, Oregon, and Washington, and was later incorporated into [[U.S. Route 99|U.S. Route&nbsp;99]] (US&nbsp;99) in 1926. I-5 largely follows the route of US&nbsp;99, with the exception of portions south of [[Los Angeles]] and in the [[Central Valley (California)|Central Valley]] of California. The freeway was built in segments between 1956 and 1978, including expressway sections of US&nbsp;99 that were built earlier to bypass various towns along the route. US&nbsp;99 was removed in 1972.