Editing Interstate Bridge (section)

{{Use mdy dates|date=September 2019}}
{{Short description|Highway bridge crossing the Columbia River between Portland, Oregon and Vancouver, Washington}}
{{Confused|text=the [[Interstate Highway Bridge]] between Washington and Idaho}}
{{Infobox Bridge
|name=Interstate Bridge
|image=InterstateBridge.jpg
|caption=Looking south from Vancouver
|carries= 6 lanes of {{jct|country=USA|I|5}}
|crosses=[[Columbia River]]
|locale=[[Portland, Oregon]] to<br /> [[Vancouver, Washington]]
|maint=[[Oregon Department of Transportation]]
|id=01377, 07333
|design=Dual [[truss bridge|truss]] with [[vertical-lift bridge|vertical lifts]]
|mainspan= {{Convert|531|ft|m|1|abbr=on}}
|length= {{Convert|3538|ft|m|abbr=on}}
|width= Northbound span {{Convert|38|ft|m|abbr=on}};<br />southbound span {{Convert|39|ft|m|abbr=on}}
|height= {{Convert|242|ft|m|abbr=on}}<ref>{{Cite web|url=https://wireless2.fcc.gov/UlsApp/AsrSearch/asrRegistration.jsp?regKey=2648121|title=ASR Registration 1248957|access-date=September 1, 2023|archive-date=September 1, 2023|archive-url=https://web.archive.org/web/20230901020514/https://wireless2.fcc.gov/UlsApp/AsrSearch/asrRegistration.jsp?regKey=2648121|url-status=live}}</ref>
|below= {{Convert|72|ft|m|1|abbr=on}} at highest fixed span; <br/>{{Convert|176|ft|m|1|abbr=on}} at open lift span<ref name = "Wood-Wortman"/>
|traffic= 132,592 (2014)<ref name="rtc">{{Cite web|url=https://www.rtc.wa.gov/data/traffic/bridges/daily.asp#CrossingData|title=Columbia River Bridges: Crossing Data, 1961 - 2014|access-date=June 25, 2015|archive-date=February 7, 2019|archive-url=https://web.archive.org/web/20190207181904/https://www.rtc.wa.gov/data/traffic/bridges/daily.asp#CrossingData|url-status=live}}</ref>
|designer=[[Waddell & Harrington]]<ref name="Wood-Wortman"/>{{rp|110–112}}
|open=February 14, 1917<ref name="Wood-Wortman"/><ref name="formally opened"/><small>(Northbound span)</small>,<br />1958 <small>(Southbound span)</small>
{{Infobox NRHP
| embed        = yes
| name         = Portland–Vancouver Highway Bridge
| image        =
| caption      =
| nrhp_type    =
| location     = [[Portland, Oregon]]; <br />[[Vancouver, Washington]]
| coordinates  = {{Coord|45|37|05|N|122|40|31|W|region:US-WA_type:landmark|display=inline,title}}
| locmapin     = Portland
| area         =
| built        = 1915–16<ref name=bottenberg/>
| added        = July 16, 1982<ref name="oprd nrhp list"/>
| mpsub        = Historic Bridges/Tunnels in Washington State TR
| refnum       = 82004205<ref name="oprd nrhp list"/><ref name="nris">{{NRISref|2008a}}</ref>
}}
}}

The '''Interstate Bridge''' (also '''Columbia River Interstate Bridge''', '''I-5 Bridge''', '''Portland-Vancouver Interstate Bridge''', '''Vancouver-Portland Bridge''') is a pair of nearly identical steel [[vertical-lift bridge|vertical-lift]], [[Parker truss|Parker]] through-[[truss bridge]]s that carry [[Interstate 5]] traffic over the [[Columbia River]] between [[Vancouver, Washington|Vancouver]], [[Washington (state)|Washington]] and [[Portland, Oregon|Portland]], [[Oregon]] in the [[United States]].

The present-day northbound bridge opened to traffic in 1917 as a single bridge carrying two-way traffic. A second twin bridge, which carries southbound traffic, opened in 1958.<ref name="Wood-Wortman">{{Cite book |last1=Wood Wortman |first1=Sharon |last2=Wortman |first2=Ed |title=The Portland Bridge Book |edition=3rd |publisher=Urban Adventure Press |date=2006 |pages=107–112 |isbn=0-9787365-1-6}}</ref> The twin bridges are each over {{Convert|3500|ft|m|0|abbr=out}} long and carry three lanes of traffic. The bridges handle a combined 130,000 vehicles daily.<ref name="Wood-Wortman"/> It was added to the [[National Register of Historic Places]] in 1982, as the "Portland–Vancouver Highway Bridge".<ref name="oprd nrhp list">{{Cite web |title=Oregon National Register List |publisher=Oregon Parks and Recreation Department |url=https://www.oregon.gov/OPRD/HCD/NATREG/docs/oregon_nr_list.pdf |page=39 |date=June 6, 2011 |access-date=July 13, 2011 |archive-date=June 9, 2011 |archive-url=https://web.archive.org/web/20110609105953/https://www.oregon.gov/OPRD/HCD/NATREG/docs/oregon_nr_list.pdf |url-status=dead}}</ref>

Since 2005, several proposals for replacing the bridge have been produced and debated. The bridge is considered responsible for traffic congestion of both road and river vehicles. Plans for a replacement bridge, known as the [[Columbia River Crossing]] (CRC) project, estimated to cost at least $3.4&nbsp;billion, had come together by 2012 after many delays, but were very controversial, with both strong support and strong opposition.<ref name="oreg2013jul1">{{Cite news |last=Read |first=Richard |title=Cheers, dismay over CRC's demise<!--print-edition headline--> |newspaper=The Oregonian |date=July 1, 2013 |orig-year=online date June 30 |page=1 |url=https://www.oregonlive.com/business/index.ssf/2013/06/columbia_river_crossing_implos.html |access-date=July 7, 2013 |archive-date=July 4, 2013 |archive-url=https://web.archive.org/web/20130704055407/http://www.oregonlive.com/business/index.ssf/2013/06/columbia_river_crossing_implos.html |url-status=live }}</ref> In late June 2013, the CRC project was canceled, after the Washington state legislature declined to authorize funding for the project.<ref name="oreg2013jul1"/> The Interstate Bridge Replacement Program, a joint effort between [[Oregon Department of Transportation|ODOT]], [[Washington State Department of Transportation|WSDOT]], [[Federal Highway Administration]], [[Federal Transit Administration]], Metro, Southwest Washington Regional Transportation Council, the cities of Portland and Vancouver, the [[Port of Portland (Oregon)|Port of Portland]], and the [[Port of Vancouver USA]], was relaunched in 2017.