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Special "tunnel" under the longest bridge across sea in Vietnam

Tan Vu - Lach Huyen road (Hai Phong city), also known as the longest bridge across sea in Vietnam, is scheduled to be put into operation in early September. Many people may not know that there is a special tunnel under that bridge.

Tan Vu - Lach Huyen road project has a total investment of nearly 11,850 billion VND with 15.6km length through Hai An and Cat Hai district of Hai Phong city.
The project consists of roads and bridges, of which 5.44km over the bridge, 10.19km road, 16m width and 4 lanes. The bridge is planned to be in use from September 4.
Unlike many traffic works, the bridge has a special tunnel. This is considered the giant technical chamber of the century.
Following are some looks of this "tunnel":
The longest bridge across sea in Vietnam has a total length of 15.63 km with a road of 10.19 km and 5.44 km bridge. The project owner is the Ministry of Transport and managed by the Project Mamagement Unit 2. The bridge will be put into operation from early September.
The longest bridge across sea in Vietnam has a total length of 15.63 km with a road of 10.19 km and 5.44 km bridge. The project owner is the Ministry of Transport and managed by the Project Mamagement Unit 2. The bridge will be put into operation from early September.
Zoom in the special tunnel
Zoom in the special tunnel
This tunnel is also considered a giant "technical chamber"
This tunnel is also considered a giant "technical chamber"
Interconnection of tunnels. It represents the special technical structure of the bridge
Interconnection of tunnels. It represents the special technical structure of the bridge
Cable system inside the tunnel ensures operation of the bridge, allowing vehicle speed of 80km/h on 4 lanes.
Cable system inside the tunnel ensures operation of the bridge, allowing vehicle speed of 80km/h on 4 lanes.
Cable system inside the tunnel ensures operation of the bridge, allowing vehicle speed of 80km/h on 4 lanes.
Cable system inside the tunnel ensures operation of the bridge, allowing vehicle speed of 80km/h on 4 lanes.
Gap between the beams from inside the bridge
Gap between the beams from inside the bridge
Way to the the tunnel. This tunnel is only for technical staff.
Way to the the tunnel. This tunnel is only for technical staff.
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