Hamana Bridge
Coordinates: 34 ° 40 ′ 44 ″ N , 137 ° 35 ′ 51 ″ E
| Hamana Bridge 浜 名 大橋 |
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| Convicted |
 National Road 1 (Hamana By-pass)
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| Crossing of | Exit of Lake Hamana | |
| place | at Hamamatsu | |
| construction | Prestressed concrete - box girder bridge | |
| overall length | 631.8 m | |
| width | 21.4 m | |
| Longest span | 240 m | |
| completion | 1976 | |
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The Hamana Bridge ( Japanese 浜 名 大橋 ) leads the Hamana Bypass of National Road 1 over the exit of Lake Hamana to the Pacific . It is located at Hamamatsu in Shizuoka Prefecture on Honshu , the main island of Japan .
The bridge has two lanes with a narrow safety strip in each direction, which are separated in the middle by guardrails and secured on the outside by a concrete protective wall.
The bridge structure is a total of 1,448.5 m long including the two ramp bridges that are necessary to raise the road leading along the coast to a height of 31 m. It consists of two bridges that are close to each other and together are 21.4 m wide.
The actual prestressed concrete bridges are 631.8 m long and have five openings with pillar spacing of 55 + 140 + 240 + 140 + 55 m. The superstructure consists of a 6.2 m wide, single-cell, rectangular , haunched hollow box , the cantilevered cover plate of which forms the girder. In the middle of the 240 m wide main opening there is an expansion joint .
The bridge, completed in 1976, had the largest span of all prestressed concrete bridges in the world and in Japan until the construction of the Eshima Bridge , which was opened to traffic in 2004.
The bridge has been toll-free since 2005 .
Web links
Individual evidence
- ^ Report on the renovation of February 19, 2014 (Japanese)