North Queen Anne Drive Bridge Explained

Bridge Name:North Queen Anne Drive Bridge
Crosses:Wolf Creek
Design:deck arch
Material:steel and concrete
Length:238-foot (73 m)
Open:1936
Heritage:Seattle city landmark

The North Queen Anne Drive Bridge is a deck arch bridge that spans Seattle's Wolf Creek. The 238feet long steel and concrete structure was built in 1936 to replace the previous wood-constructed crossing. It serves as a connection between the Queen Anne neighborhood and the George Washington Memorial Bridge that carries State Route 99. The arch is unusually high and uses a minimal number of supporting members. It was designated a city landmark on December 28, 1981, because of its unique engineering style.[1] [2]

An expansion joint suffered cracking and spalling during the 2001 Nisqually earthquake.[3] The bridge has been retrofitted to make it more earthquake-resistant.[4]

Notes and References

  1. Encyclopedia: Wilma. David. Seattle Landmarks: Queen Anne Drive Bridge (1936). HistoryLink.org Online Encyclopedia of Washington State History. April 17, 2001. April 4, 2011.
  2. Book: Crowley. Walt. Dorpat. Paul. National Trust Guide, Seattle: America's Guide for Architecture and History Travelers. 1998. Preservation Press, J. Wiley & Sons. 978-0-471-18044-9. 251.
  3. Book: McDonough, Peter W.. The Nisqually, Washington, Earthquake of February 28, 2001: Lifeline Performance. 2002. American Society of Civil Engineers. 978-0-7844-0615-1. 76.
  4. News: Lange. Larry. Steel-truss bridges get emergency look. April 4, 2011. Seattle Post-Intelligencer. August 2, 2007.