BNSF Railway Bridge 5.1

BNSF Railway
Bridge 5.1
Coordinates45°34′38″N 122°44′48″W / 45.57730°N 122.74678°W / 45.57730; -122.74678
CarriesFreight trains and Amtrak passenger trains toward Seattle or Spokane
CrossesWillamette River
LocalePortland, Oregon
OwnerBNSF Railway
Characteristics
Design1989 to present: Vertical-lift bridge
1908–89: Swing bridge
Total length1,763 feet (537 m)[1]
Longest span516 feet (157 m)[2][3]
No. of spans5
Clearance below200 feet (61 m) when lift span
fully raised[2]
Rail characteristics
No. of tracks2
History
DesignerRalph Modjeski
Opened1908; main span replaced 1989
Location
Map

The BNSF Railway Bridge 5.1,[2][4] also known as the St. Johns Railroad Bridge[2][4][5] or the Willamette River Railroad Bridge,[6] is a through truss railway bridge with a vertical lift that spans the Willamette River in Portland, Oregon, United States. Built by the Spokane, Portland and Seattle Railway (SP&S) and completed in 1908, it was originally a swing-span bridge, and its swing-span section was the longest in the world at the time.[6][7] However, 81 years later the main span was converted from a swing-type to a vertical-lift type, in order to widen the navigation channel. The lift span is one of the highest and longest in the world.[2] The bridge consists of five sections, with the two sections closest to the bank on each side fixed.

The BNSF Railway owns the bridge, and the 5.1 denotes the distance in miles from Portland's Union Station[2] or from the nearby North Bank Depot (or Hoyt Street Depot), which was the Portland terminus of SP&S passenger service coming via this bridge until 1922.[8] The bridge's two tracks are used by freight trains of BNSF and Union Pacific Railroad and by Amtrak passenger trains. Of 12 bridges across the Willamette River within the city of Portland, it is the sole rail-only bridge and the only bridge not open to the public.[4] It is located at river mile 6.9.[5]

  1. ^ Cite error: The named reference finished was invoked but never defined (see the help page).
  2. ^ a b c d e f Wood Wortman, Sharon; Wortman, Ed (2006). The Portland Bridge Book (3rd ed.). Urban Adventure Press. pp. 5, 36, 119–120, 177. ISBN 0-9787365-1-6.
  3. ^ Cite error: The named reference races clock was invoked but never defined (see the help page).
  4. ^ a b c Anderson, Jennifer (October 30, 2009) [April 28, 2006]. "Stumptown Stumper". Portland Tribune. Retrieved July 28, 2011.[permanent dead link]
  5. ^ a b "2011 Bridge inspection list, 13th Coast Guard District" (PDF). United States Coast Guard. July 18, 2011. p. 3. Retrieved July 28, 2011.
  6. ^ a b Bottenberg, Ray (2007). Bridges of Portland. Arcadia Publishing. pp. 55–64. ISBN 978-0-7385-4876-0.
  7. ^ "New Hill bridge across the Willamette River below Portland, just completed: Longest draw-span in the world is swung for the first time". The Sunday Oregonian. July 26, 1908. Section 1, p. 11.
  8. ^ Tess, John M.; Mawson, Robert (July 29, 1995). "National Register of Historic Places Registration Form: North Bank Depot Buildings" (PDF). National Park Service. Section 8, p. 4. Retrieved July 24, 2011.