The Minato Bridge is a double-deck cantilever truss bridge in Osaka, Japan; upper deck is for Hanshin Expressway Route 16 Osakako Line, and lower deck is Route 5 Bayshore Line. It opened in 1974. It is the third-longest cantilever truss span in the world, behind the Quebec Bridge and the Forth Bridge.[2]

Minato Bridge

港大橋
Coordinates34°38′39″N 135°26′15″E / 34.644069°N 135.437629°E / 34.644069; 135.437629 (Minato Bridge)
Carriesvehicular traffic
LocaleOsaka, Japan
Maintained byHanshin Expressway Company, Limited
Characteristics
Designdouble-deck cantilever truss bridge[1]
MaterialHigh-strength steel[2]
Total length983 metres (3,225 ft)[1]
Width22.5 metres (74 ft) (deck)[1]
Longest span1 × 510 metres (1,670 ft)
2 × 235 metres (771 ft)[2]
Clearance below51 metres (167 ft)[2]
History
Construction end1973[1]
Construction costUS$117 million[3]
Opened1974[1][2]
Location
Map

Designs including arch and suspension elements were eliminated from consideration due to poor subsoil conditions of alternating layers of clay and gravel. Instead, the designers selected a cantilever structure using high-strength steel, to reduce mass.[2]

Construction

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See also

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References

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  1. ^ a b c d e Minato Bridge at Structurae. Retrieved 2009-04-01.
  2. ^ a b c d e f Bridges 2009 (calendar). Reston, Virginia: American Society of Civil Engineers (ASCE). 2008. pp. April featured bridge. ISBN 978-0-7844-1001-1.
  3. ^ "Construction Facts - The Sourcebook of Statistics, Records and Resources" (PDF), Engineering News Record, vol. 251, Number 20a, McGraw Hill, November 2003, retrieved 9 August 2014