| 词条 | Sauvie Island Bridge |
| 释义 |
|bridge_name = Sauvie Island Bridge |image = Sauvie Island Bridge (second).jpg |caption = Sauvie Island Bridge in 2011 |official_name= |also_known_as= |carries= Access from U.S. Route 30 to Sauvie Island |crosses= Multnomah Channel |locale= Sauvie Island, in Multnomah County, near Portland, Oregon |maint= |id= |design= |mainspan={{convert|360|ft|m}} (old bridge {{convert|200|ft|m}}) |length= Old bridge: {{convert|1198|ft|m}} (new: approx. same) |width= {{convert|66|ft|m}} (old bridge {{convert|41|ft|m|abbr=on}}) |clearance= |below= |traffic= |open= June 23, 2008 |closed= |toll= |map_cue= |map_image= |map_text= |map_width= |coordinates = {{coord|45.628021|-122.816307|display=inline,title}} }} The Sauvie Island Bridge crosses the Multnomah Channel of the Willamette River near Portland, Oregon, United States. The original Parker truss bridge, built in 1950 with a {{convert|200|ft|m|adj=on}} main span, was replaced with a tied arch bridge with a {{convert|360|ft|m|adj=on}} span in 2008 due to cracks discovered in 2001. Old bridgeOpened on December 30, 1950, the first bridge to Sauvie Island replaced the Sauvie Island Ferry. The $900,000 bridge was designed by the Oregon Department of Transportation and built by Gilpin Construction. Oregon transferred ownership to Multnomah County in 1951. Composed of three steel truss spans, it was a total of {{convert|1198|ft|m}} long, with the main span measuring {{convert|200|ft|m}} in length. The approach spans were built of reinforced concrete girders. Green in color, the bridge was {{convert|41|ft|m}} wide and carried two lanes of traffic and had sidewalks on both sides. The main span, a Parker truss, sat {{convert|80|ft|m}} above the water line and handled an average of 3,800 vehicles per day.[1] New bridgeAfter cracks were found in the 1950 span in 2001, Multnomah County restricted weight and speed on the bridge.[1] Early designs for a new bridge were submitted in July 2004, and groundbreaking was held on January 4, 2006. The new $38 million span was designed by H2L2 Architecture with David Evans & Associates as the design engineers, and built by Max J. Kuney Company. Located at river mile three, the main span is {{convert|360|ft|m}} long and rests {{convert|80|ft|m}} above the water. The main span is of a tied arch design[2] constructed of steel, while the approach spans are a box-girder style using pre-stressed concrete. The bridge has two lanes of traffic with shoulders and sidewalks on both sides for a total width of 66 feet.[1] The bridge was floated into place after it was constructed.[3] In March 2006, then-city commissioner Sam Adams proposed reusing the Sauvie Island bridge span as a bicycle/pedestrian bridge over Interstate 405 in downtown Portland, as part of the Burnside/Couch Transportation and Urban Design Plan.[4] A coalition of Portland community groups including the Pearl District Neighborhood Association and the Bicycle Transportation Alliance supported the idea.[5] Adams ultimately retracted the proposal, realizing the cost would likely be more than the $5.5 million he had originally stated.[6][7] The $43 million new bridge opened June 23, 2008.[8] The old bridge was removed in August 2008 and was scrapped at Schnitzer Steel Industries.[9] See also
References1. ^1 2 Wortman, Sharon Wood, Ed Wortman, and James B. Norman. 2006. The Portland Bridge Book. Portland, OR: Urban Adventure Press. {{ISBN|978-0-9787365-1-4}}. pp. 102-104. 2. ^{{cite news|title=Bridge design is key|last=Rivera|first=Dylan|date=October 8, 2008|newspaper=The Oregonian}} 3. ^http://www.oregon.gov/ODOT/HWY/OTIA/news_HFL_event_1108.shtml 4. ^"Is the Sauvie Island Bridge Worth Saving?", CommissionerSam.com {{webarchive |url=https://web.archive.org/web/20070509072852/http://www.commissionersam.com/sam_adams/2006/03/input_wanted_sa.html |date=May 9, 2007 }} 5. ^"Pearl wants Sauvie Bridge" by Andy Giegerich, Portland Business Journal, July 20, 2007 6. ^{{cite news|title=Making Portland be all it can be|last=Griffin|first=Anna|date=25 May 2008|work=The Oregonian}} 7. ^{{cite web |url=http://bikeportland.org/2008/05/07/live-from-city-hall-adams-to-explain-budget-crunch-sauvie-decision/ |title="With a heavy heart" Adams explains Sauvie decision |last=Maus |first=Jonathan |work=BikePortland.org}} 8. ^{{cite news|url=http://djcoregon.com/news/2008/06/24/sauvie-bridge-opens-to-traffic/|title=Sauvie Bridge opens to traffic|date=June 24, 2008|work=Daily Journal of Commerce|accessdate=8 February 2010}} 9. ^{{cite web|url=http://djcoregon.com/news/2008/08/18/adios-old-sauvie-bridge/|title=Adios, old Sauvie bridge|last=Tucker|first=Libby|date=18 August 2008|work=Daily Journal of Commerce|accessdate=2009-06-21}} External links{{Commons category}}
10 : Bridges over the Willamette River|Bridges completed in 1950|Tied arch bridges in the United States|Bridges completed in 2008|Sauvie Island|Road bridges in Oregon|2008 establishments in Oregon|1950 establishments in Oregon|Steel bridges in the United States|Bridges in Multnomah County, Oregon |
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