Are all the tunnels in Shanghai built under the Huangpu River? How to build it? What are the costs?

The tunnels in Shanghai are all built under the Huangpu River, and they are all built by modern engineering methods, and the cost has not been announced.

Dapulu tunnel

Dapu Road Tunnel was completed and opened to traffic in June 197 1. It is not only the first river-crossing tunnel in Shanghai, but also the first river-crossing tunnel in China. Its completion broke the pattern that the ferry was the only means to cross the river.

The double track of Dapu Road Crossing River Tunnel was completed and opened to traffic on February 20 10/0. Located on the west side of the existing Dapu Road Tunnel, it forms a group of two-way four-lane river-crossing passages with the existing Dapu Road Tunnel.

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Yan 'an East Road Tunnel

Yan 'an East Road Tunnel is the second river-crossing tunnel in Shanghai. 1 May, 19891was opened to traffic, which played a decisive role in the development of Shanghai and opened the prelude to the development and opening up of Pudong in a certain sense. 1996165438+10, the south line of Yan 'an East Road Tunnel was officially opened to traffic.

Shanghai outer ring cross-river tunnel

In June 2003, the Outer Ring Tunnel was opened to traffic, marking the official opening of the 99-kilometer Shanghai Outer Ring Highway.

Outer ring tunnel is the first river-crossing tunnel in Shanghai by immersed tube method. According to the comparison of the number of lanes, the width of the pipe section and the weight index, the scale of the outer ring river-crossing tunnel ranked first in Asia at that time.