Thung Thi Tunnel (package 12-XL) of Mai Son – National road 45 expressway project will officially open the remaining tunnel on December 11, 2021.

At this time, all construction work has been completed by Deo Ca people for the important milestone of the project.

New day begins at Thung Thi tunnel construction site

Geodetic engineers are measuring, locating for working teams to perform accurate drillings

Completing tunnel wall reinforcement

The workers are reinforcing the rock anchor head for spraying concrete

A geological engineer is assessing the geological of tunnel slice after blasting

The overview of the Northern tunnel entrance

BY DOAN TUAN LINH