Minato Bridge

Minato Bridge 港大橋
Coordinates	34.644069°N 135.437629°E / 34.644069; 135.437629 (Minato Bridge)
Carries	vehicular traffic
Locale	Osaka, Japan
Maintained by	Hanshin Expressway Company, Limited
Characteristics
Design	double-deck cantilever truss bridge
Material	High-strength steel
Total length	983 metres (3,225 ft)
Width	22.5 metres (74 ft) (deck)
Longest span	1 × 510 metres (1,670 ft) 2 × 235 metres (771 ft)
Clearance below	51 metres (167 ft)
History
Construction end	1973
Construction cost	US$117 million
Opened	1974
Location
<mapframe zoom="10" frameless="1" align="center" longitude="135.437629" latitude="34.644069" height="200" width="250">{"type":"Feature","geometry":{"coordinates":[135.437629,34.644069],"type":"Point"},"properties":{"marker-color":"#5E74F3","title":"Minato Bridge","marker-symbol":"bridge"}}</mapframe>

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.

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.

See also

• Hanshin Expressway