South Park Bridge

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South Park Bridge
South Park Bridge in Seattle.jpg
South Park Bridge seen from South Park in 2007
Crosses Duwamish River
Locale South Park, Seattle, Washington
Maintained by King County, Washington
Design Double-leaf bascule
Total length 1,285 feet (392 m)[1]
Longest span Bascule span: 190 feet (58 m) (two 95-foot leaves)[1]
Construction begin 1929
Construction end 1931
Opened 1931

June 30, 2010[2]

14th Avenue South Bridge
Location Spans Duwamish River,
Seattle, Washington
Coordinates 47°31′45.5″N 122°18′50.7″W / 47.529306°N 122.314083°W / 47.529306; -122.314083Coordinates: 47°31′45.5″N 122°18′50.7″W / 47.529306°N 122.314083°W / 47.529306; -122.314083
Built 1931 (1931)
Architectural style Scherzer Rolling Lift Bascule
Governing body King County
MPS Historic Bridges/Tunnels in Washington State TR
NRHP Reference # 82004228[3]
Added to NRHP July 16, 1982

The South Park Bridge (also called the 14th/16th Avenue South Bridge) is a Scherzer Rolling Lift double-leaf bascule bridge in Seattle, Washington, United States. It was constructed in 1929-31 and closed to traffic on June 30, 2010, due to safety concerns. The South Park Bridge carried automobile traffic over the Duwamish River[4] near Boeing Field, just outside the city limits of Seattle. It was named for the nearby South Park neighborhood of Seattle. It was listed on the National Register of Historic Places in 1982, as the 14th Avenue South Bridge.

The bridge was operated by the King County government. About 20,000 vehicles used the bridge daily, and it was a main connection to South Park's main business district.[5] Dismantling of the bridge began in late August 2010, with removal of the lift span sections.[6]

The bridge was already in poor condition due to its 75-year age when it was further damaged by the Nisqually earthquake in 2001. In 2002, King County inspectors gave the bridge a score of 6 out of a possible 100, per Federal Highway Administration criteria, and the rating later fell to as low as 4.[7][8] This compares to a score of 50 for the I-35W Mississippi River bridge, which collapsed in August 2007.

Due to lack of county, state and federal funding, the South Park Bridge closed on June 30, 2010 at 7:00 p.m.[9] Although plans to build a new bridge were ready, the project did not receive a $99 million federal TIGER I grant in early 2010.[10]

By working with state and local funding partners, King County secured $100 million toward the replacement of the South Park Bridge.[11] In August 2010, the County submitted a grant application for $36.2 million in federal funds from the second round of federal Transportation Investment Generating Economic Recovery (TIGER II) grants.[12] On Oct. 15, 2010, it was announced that the South Park Bridge had been awarded $34 million in TIGER II financing, filling the funding gap and allowing work to replace the bridge to move forward. Construction is expected to last through summer 2014.[13][14]

On May 5, 2011 South Park residents celebrated Cinco de Mayo and the groundbreaking on the replacement bridge by building a giant 26-foot long piñata designed to look like the South Park Bridge. King County Executive Dow Constantine, was joined by Gov. Chris Gregoire, Seattle Mayor Mike McGinn and other dignitaries at the groundbreaking ceremony.[15][16]

The newly completed South Park Bridge is due to officially open to traffic on June 30, 2014. A ceremonial grand opening event will take place on June 29, 2014.[17]

See also[edit]


  1. ^ a b Lisa Soderberg (June 1980). Office of Archeology and Historic Preservation (OAHP) Inventory: 14th Avenue South Bridge (pdf). National Park Service. 
  2. ^ South Park Bridge closure - June 30, 2010, King County, retrieved 2010-04-08 
  3. ^ "National Register Information System". National Register of Historic Places. National Park Service. 2010-07-09. 
  4. ^ King County 2005 Bridge Report, p. 24. Accessed online 2009-04-28.
  5. ^ Gutierrez, Scott (2009-12-20). "Seattle Transportation Watch". Seattle Post-Intelligencer. Retrieved 2010-01-13. 
  6. ^ Seattle Times Staff (August 31, 2010). "Spans removed from South Park bridge". The Seattle Times. Retrieved January 2, 2012. 
  7. ^ John Iwasaki (November 3, 2005). County looking at five plans to fix or replace South Park Bridge, Seattle Post-Intelligencer. Accessed online 2009-04-27.
  8. ^ Keith Ervin (July 6, 2006). "South Park Bridge on its last legs". Seattle Times. Retrieved 2007-03-26. 
  9. ^ South Park Bridge closure page.
  10. ^ South Park Bridge funding rejected West Seattle Herald, 2010-02-17
  11. ^ Ervin, Keith (June 25, 2010). "South Park Bridge funding ramps up quickly with added $10 million grant". The Seattle Times. Retrieved January 2, 2012. 
  12. ^ Funding for the new South Park Bridge King County, South Park Bridge, 2010-07-07
  13. ^ Goldsmith, Steven (October 15, 2010). "Murray: Final $34M found for South Park Bridge". Puget Sound Business Journal. Retrieved January 2, 2012. 
  14. ^
  15. ^ Gutierrez, Scott (May 5, 2011). "South Park celebrates groundbreaking on new bridge". Seattle Post-Intelligencer. Retrieved January 2, 2012. 
  16. ^ "Breaking of giant piñata marks start of construction for new South Park Bridge". King County Transportation News Center. May 5, 2011. Retrieved January 2, 2012. 
  17. ^ "South Park Brdige Opening". King County Transportation. Retrieved June 23, 2014. 

External links[edit]