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Dames Point Bridge

Coordinates:30°23′09″N81°33′27″W/ 30.3858°N 81.5574°W/30.3858; -81.5574
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Dames Point Bridge
Dames Point Bridge in 2010.
Coordinates30°23′09″N81°33′27″W/ 30.3858°N 81.5574°W/30.3858; -81.5574
CarriesI-295(SR 9A/Jacksonville Eastern Beltway)
(six general purpose lanes)
CrossesSt. Johns River
LocaleJacksonville, Florida
Official nameNapoleon Bonaparte Broward Bridge
Maintained byFlorida Department of Transportation
ID number720518
Characteristics
DesignContinuousprestressed concretecable-stayed bridge
Total length10,646 feet (3244.9 m)
Width106 feet (32.2 m)
Height471 feet (143.5 m)
Longest span1,300 feet (396.2 m)
Clearance above39.7 feet (12.11 m)
Clearance below175 feet (53.34 m)
History
Construction start1985
OpenedMarch 10, 1989;35 years ago(1989-03-10)
Statistics
Daily traffic77,000 (2019)
Location
Map

TheDames Point Bridge(officially theNapoleon Bonaparte BrowardBridge) is acable-stayed bridgeover theSt. Johns RiverinJacksonville,Florida,United States on theInterstate 295 East Beltway.Construction began in 1985 and was completed in 1989. The main span is 1,300 feet (396.2 m), and is 175 feet (53.3 m) high. The bridge was designed byHNTB CorporationandRS&H, Inc.The Massman Construction Company built the bridge.[1]

Design

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The bridge's cables are arranged on multiple vertical planes in a slight modification to theharp (parallel) stay arrangement.[2]Main span cables are paired to anchor into the tower in a vertical plane while side span cables pair up to anchor in a horizontal plane such that four cables anchor in each tower at approximately the same elevation.[3]

Superlatives

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Until the 2003 completion of theSidney Lanier Bridgein Brunswick, Georgia, the Dames Point Bridge was the only bridge in the United States to feature the harp stay arrangement.[4]

It remains one of the largestcable-stayed bridgesin the United States,[2][5]with 21 miles (34 km) of cable.[2]

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  • The Dames Point Bridge, seen from northbound I-295 in December 2005
    The Dames Point Bridge, seen from northbound I-295 in December 2005
  • Northbound on the Dames Point Bridge in 2005.
    Northbound on the Dames Point Bridge in 2005.
  • The Dames Point Bridge in 2010
    The Dames Point Bridge in 2010
  • The Dames Point Bridge in 2005
    The Dames Point Bridge in 2005
  • The Dames Point Bridge at Night - 2013
    The Dames Point Bridge at Night - 2013
  • After Sunset 2013
    After Sunset 2013
  • From the bottom in 2010
    From the bottom in 2010
  • Its extent length in 2016
    Its extent length in 2016
  • Road design on the bridge in 2016
    Road design on the bridge in 2016
  • Another view of the bridge in 2010
    Another view of the bridge in 2010
  • View of the bridge from the port terminal in 2012
    View of the bridge from the port terminal in 2012
  • US Navy passing by the bridge in 2008
    US Navy passing by the bridge in 2008

Accident

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On May 15, 1989, while inspectors were checking the bridge for cracks and fissures, the boom arm holding a bucket snapped, leaving the bucket tilted on its side. One worker fell into the river below and the others were at risk of plummeting 145 feet down. The man in the river suffered a dislocated shoulder but was able to swim to safety. Rescuers rappelled down the side of the bridge to the other three workers and successfully brought them all to safety.[6][7]The story of this rescue effort was aired onRescue 911on September 12 of the same year.[8]

See also

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References

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  1. ^Hannan, Larry (March 10, 2009)."Dames Point bridge reaches 20-year mark".The Florida Times-Union.RetrievedMarch 27,2009.
  2. ^abcWeeks, John."Dames Point Bridge".johnweeks.com.RetrievedMay 15,2012.
  3. ^Podolny, Walter Jr."Concrete Cable-Stayed Bridges"(PDF).p. 129.Retrieved18 July2018.
  4. ^Archaeological Consultants, Inc. (December 2012)."The Historic Highway Bridges of Florida"(PDF).Florida Department of Transportation. p. 122.Retrieved18 July2018.
  5. ^"Dames Point Park".Recreation and Community Services — City of Jacksonville, Florida. Archived fromthe originalon June 29, 2012.RetrievedMay 15,2012.
  6. ^"A look back: Dames Point Bridge celebrates 30 years,"News4Jax,11 Mar. 2019
  7. ^"Jacksonville's dramatic rescues caught on camera,"News4Jax,30 Oct. 2015.
  8. ^Shatner, William (host), "Rescue 911 - Episode 1.2 - Dames Point Bridge Rescue,"CBS.(Unauthorized YouTube video posted on 21 June 2011.)
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