Boone Bridge (Oregon)

Boone Bridge (Oregon)

Infobox_Bridge
bridge_name=Boone Bridge


caption=West side of the bridge from the north bank
official_name=
carries=Interstate 5
crosses=Willamette River
locale=Wilsonville, Oregon
maint=Oregon Department of Transportation
design=steel girder
floorbeam system [http://nationalbridges.com/nbi_record.php?StateCode=41&struct=02254A001+28311 NBI Structure Number: 02254A001 28311.] National Bridge Inventory, accessed October 22 2007.]
mainspan=
length= convert|1111|ft|m
width= convert|116|ft|m
below= convert|75|ft|m
open=1954
lat=45.291766
long=-122.76932

Boone Bridge is a steel girder highway bridge over the Willamette River at Wilsonville, Oregon, in the United States. Built in 1954, it crosses the river to the Charbonneau section of Wilsonville, carrying Interstate 5 into the open Willamette Valley from the Portland metropolitan area. Maintained by the Oregon Department of Transportation, the convert|1111|ft|m long bridge has three travel lanes in each direction. To the west is the site of the former Boone's Ferry, which the bridge replaced.

History

Alphonso Boone (grandson of Daniel Boone) and his son Jesse Boone started the Boone's Ferry over the Newberg Pool stretch of the Willamette River in 1847.Tims, Dana. Then & Now: Starting out small. "The Oregonian", July 20 2000.] They also cleared timber and constructed a road south towards Salem and north towards Portland, creating the first overland connection from Salem to the northern section of the Willamette Valley. A railroad bridge was constructed just upriver in 1907 and was used for the Oregon Electric Railway.Boone Bridge history. "The Oregonian", May 25 2006.]

In 1953, Oregon began construction of a highway bridge just east of the ferry landings to carry what became Interstate 5.Tims, Dana. Boone Bridge will become quake-proof. "The Oregonian", April 9 1998.] The four-lane, north-south aligned bridge was finished in 1954 and opened to traffic in July, with the ferry ending service as that time. The state named the bridge Boone Bridge in honor of the Boone family. [Goetze, Janet. Boone’s Landing. "The Oregonian", July 2 2004.] At the time there was a bronze marker in one of the bridge’s piers to commemorate the name, but it was removed when the bridge was later widened.Boone, Jerry. Boone family quilt will tie up loose ends at dedication. "The Oregonian", March 30 1995.]

The state widened Boone Bridge from its original four lanes of traffic to a total of six lanes in 1970, with three lanes in each direction. On April 1 1995, the bridge was re-dedicated as the Boone Bridge and a sign added to the bridge along with a plaque at the nearby rest area to honor the earlier ferry. [Garrison, Cindy. [http://www.wilsonvillespokesman.com/ArcStoryPage.asp?Database=Story&StoryID=403 "Story by: Cindy Garrison",] "Wilsonville Spokesman", April 3 2002.] From 1998 to 1999 the bridge was retrofitted with steel cables and a new roadway in order to prepare the bridge for earthquakes at a cost of $4 million. In May 1999, a ten car accident on the bridge backed up traffic for nine hours.Ramirez, Pete. State cuts I-5 speed limit at pileup site. "The Oregonian", May 13 1999.] The fatal crash led to a temporary reduction in the speed limit. By 2000, the bridge carried in excess of 125,000 cars per day.

Details

Constructed of steel girders on the underside, the bridge is convert|1111|ft|m long. Boone Bridge measures convert|116|ft|m in width and rises convert|75|ft|m above the river. The Canby Ferry, which also crosses the Willamette, is a few miles to the east. There is a Portland & Western Railroad rail bridge just upriver, to the west of Boone Bridge.

The bridge is considered a choke point in the regional transportation system with Oregon Route 217 and Interstate 205 funneling traffic onto Interstate 5 to cross the river at the bridge.Tims, Dana. Bottleneck at Boone Bridge. "The Oregonian", May 25 2006.] Oregon transportation officials have proposed several options including a new span, as well as new highway sections to connect Oregon Route 18 directly to Interstate 5 south of the bridge along with extending Interstate 205 south of Oregon City to connect with I-5 at Aurora or Woodburn. Replacing the existing bridge is estimated to cost $48,424,000. [ cite web
url = http://www.oregon.gov/ODOT/TD/TP/docs/TMR/GEN1/EconBridgeRpt.pdf
title = Draft Economic and Bridge Options Report: A report to the Oregon Transportation Commission
publisher = Oregon Department of Transportation
format = PDF
pages = 112
date = January 152003
accessdate = 2007-07-23
] This is the second crossing of the Willamette by Interstate 5, the first being downstream in Portland on the Marquam Bridge.

ee also

* List of crossings of the Willamette River

References

External links

* [http://photos.salemhistory.org/cdm4/item_viewer.php?CISOROOT=/max&CISOPTR=4156&REC=3 Ferry crossing the river with bridge in background]

Crossings navbox
structure = Crossings
place = Willamette River
bridge = Boone Bridge
bridge signs =
upstream = Portland and Western Railroad Bridge
upstream signs =
downstream = Canby Ferry
downstream signs =


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