Shuanghekou Bridge

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Shuanghekou Bridge
双河口特大桥
Langpingzhen, Hubei, China
666 feet high / 203 meters high
558 foot span / 170 meter span
2009


Located about 40 miles (64 km) south of the famous 3 Gorges region of the Yangtze River in China’s mountainous Hubei Province, Shuanghekou is just one of several towering prestressed concrete beam bridges on the last 300 mile (483 km) link of the 1,350 mile (2,175 km) long G50 West Hurong expressway that now connects Shanghai on the Pacific coast with the cities of Chongqing and Chengdu in the west. The last in a parade of 3 high bridges that lead up to the Siduhe tunnel and Siduhe bridge, Shuanghekou crosses a rugged, V-shaped river valley 666 feet (203 mtrs) deep. The most notable design element of the bridge is the extremely high center pier of 535 feet (163 meters). Straddling it are two main spans of 558 feet (170 meters). The parallel viaducts are of unequal length with one side having a configuration of 4x30+90+2x170+90+7x30 and the other side 3x30+90+2x170+90+4x30.

The entire West Hurong highway is nothing less than the greatest stretch of roadway engineering ever undertaken. It is home to no less than 10 bridges that exceed 500 feet (152 meters) including Siduhe, the world’s highest bridge and Zhijinghe, the highest roadway arch. Among concrete beam bridge viaducts it has two of the highest in the world over the Mashui and Longtan Rivers. This more direct route bypasses one of the toughest and most mountainous stretches of the Yangtze River. What once took more than a day of travel on dangerous dirt roads or a Yangtze river boat can now be safely traversed in 5 hours.



Shuanghekou Bridge Elevation


位于中国湖北山区的长江三峡流域南侧大概40英里(64公里)位置,双河口(又名“两河口”)大桥仅仅是连接太平洋西岸的上海与内陆城市重庆成都之间的1350英里(2175公里)长的后300英里(483公里)的沪蓉西高速路段上的诸多高耸预应力混凝土梁桥之一。作为诸如四渡河大桥的三座高桥之列的最后一个,双河口大桥跨越了一个崎岖的V型的203米深的河谷。这座大桥的最值得注意的设计要点是其163米高的极高的中墩,其两侧是两个170米的中跨。

整个沪蓉西高速绝对是公路工程师们所承担的最大的工程。它是十座高度超过152米的桥梁的故乡,其中包括世界最高的四渡河悬索桥,直接最高的公路拱桥支井河大桥。在混凝土梁式结构高架桥中,沪蓉西还有世界最高中的两座,马水河大桥和龙潭河大桥。这条更为直接的路线将与原先一条极为艰险、崎岖的长江流域的山区的一条公路线相并行。而原先需要一天的山区危险的车程或者长江上的航行,现在都能在5个小时之内实现。


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


A construction view from 2008. Image by Eric Sakowski / HighestBridges.com


A view of the tallest pier in 2011. Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


The new railway plunges into long tunnels below the Shuanghekou Bridge. Image by Eric Sakowski / HighestBridges.com


Foundations are all that remain of the temporary worker housing that was torn down after the bridge was completed. Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Within a stretch of just 8 miles (13 kms), the West Hurong highway crosses 4 bridges that are nearly 200 meters or higher. Between these deep valleys there are several other viaducts and tunnels including the nearly 4 kilometer Siduhe tunnel.


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Several viaducts lead up to the east end of the Siduhe tunnel seen all the way on the left. The west end of the tunnel leads directly onto Siduhe - the highest bridge in the world. Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


Image by Eric Sakowski / HighestBridges.com


A satellite view of the high bridges from Shuinan and Siduhe Bridges on the left side to Shuanghekou then Tieluoping and finally Longtanhe Viaduct on the right. There is no other section of highway in the world to have so many high bridges in such a short stretch. Click in for a closer look.

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