Boone Bridge

from Wikipedia, the free encyclopedia

Coordinates: 45 ° 17 ′ 30 ″  N , 122 ° 46 ′ 10 ″  W.

I5 Boone Bridge
Boone Bridge
West side of the bridge as seen from the north bank.
use Road traffic
Convicted Interstate 5
Crossing of Willamette River
place Wilsonville , Oregon
Entertained by Oregon Department of Transportation
Building number 02254A001 28311 (NBI)
construction Girder bridge
overall length 338.6 m
width 35.4 m
Clear height 22.9 m
vehicles per day 123119 (2007)
start of building 1953
completion 1954
opening July 1954
location
Boone Bridge (Oregon)
Boone Bridge
Above sea level 19  m

Boone Bridge is a steel girder road bridge over the Willamette River near Wilsonville , Oregon in the United States . The bridge, built in 1954, connects the metropolitan area of ​​Portland via Interstate 5 with the open Willamette Valley . The structure is maintained by the Oregon Department of Transportation . It is 339 m long and includes three lanes in each direction of travel. To the west of the bridge is the place where the Boones Ferry , which was replaced by the bridge construction, was.

history

Alphonso Boone, the grandson of Daniel Boone , and his son Jesse Boone founded the Boones Ferry in 1847, a ferry that crossed the Newberg Pool of the Willamette River. They also cleared forest and built a road south to Salem and north to Portland, creating the first overland link from Salem to the northern section of the Willamette Valley. A railway bridge was built a short distance upstream in 1907 and served the Oregon Electric Railway .

In 1953, the state of Oregon began building a new road bridge just east of the ferry facilities to run the future Interstate 5 across the river. The four-lane north-south bridge was completed in 1954 and opened to traffic in July of that year; the ferry service was terminated at the same time. The state gave the bridge the current name Boone Bridge in honor of the Boon family. At that time there was a bronze plaque on one of the bridge piers, but this was removed when the bridge was later widened.

Bridge from the south bank of the Willamette Rivers

Because the traffic increased, the Boone Bridge was expanded in 1970 from its original four lanes to a total of six lanes, of which three lanes are allocated to one lane . In 1995 the bridge was rededicated as the Boone Bridge and a notice board reminding of the earlier ferry was placed at a nearby rest area. Between 1998 and 1999, the bridge was re-equipped with steel cables and the roadway renewed to make the structure earthquake-proof . Four million US dollars were spent on this. In May 1999, a traffic accident involving ten vehicles on the bridge resulted in a nine-hour full closure. The fatal accident temporarily lowered the speed limit on the bridge. In 2000, more than 125,000 cars drove over the bridge every day.

details

The bridge, built on steel girders, is 338.6 m long, 35.4 m wide and has a clear height of 22.9 m above the river. The Canby Ferry , which can also be used to cross the river, is a few kilometers to the east. A railroad bridge on the Portland & Western Railroad is west of the Boone Bridge, i.e. upstream.

The structure is considered a bottleneck in the regional transportation network, as Oregon Route 217 and Interstate 205 direct traffic onto Interstate 5 to cross the river. Oregon's transportation authorities propose several options to alleviate this bottleneck; this includes the construction of a new building and the construction of several new connecting roads to connect Oregon Route 18 south of the bridge directly to Interstate 5, as well as the expansion of Interstate 205 south of Oregon City to I-5 at Aurora or Woodburn . The construction costs for a new building in 2003 were estimated at around 48 million dollars.

Web links

Commons : Boone Bridge  - collection of pictures, videos and audio files

Individual evidence

  1. ^ A b c Dana Tims: Then & Now: Starting out small . Ed .: The Oregonian . July 20, 2000 (English).
  2. ↑ a b The Oregonian (Ed.): Boone Bridge history . May 26, 2006 (English).
  3. ↑ a b c Dana Tims: Boone Bridge will become quake-proof . Ed .: The Oregonian . April 9, 1998 (English).
  4. ↑ Janet Goetze: Boone's Landing . Ed .: The Oregonian . July 2, 2004 (English).
  5. ↑ a b Jerry Boone: Boone family quilt will tie up loose ends at dedication . Ed .: The Oregonian . March 30, 1995 (English).
  6. ↑ a b Pete Ramirez: State cuts I-5 speed limit at pileup site . Ed .: The Oregonian . May 13, 1999 (English).
  7. ↑ Alexander Svirsky: database on nationalbridges.com. Retrieved March 28, 2013 (English, technical data).
  8. ↑ a b Dana Tims: Bottleneck at Boone Bridge . Ed .: The Oregonian . May 25, 2006 (English).
  9. ^ Oregon Department of Transportation (ed.): Draft Economic and Bridge Options Report . A report to the Oregon Transportation Commission. January 15, 2003 (English, oregon.gov [PDF; 3.5 MB ; retrieved on March 28, 2013] Official report).
Upstream
Canby Ferry 		Crossing the Willamette River Downstream
railroad bridge on the Portland & Western Railroad