Lao Cai – Vinh Yen 500kV transmission line project passes through 4 provinces: Lao Cai, Yen Bai, Phu Tho, and Vinh Phuc with 468 column foundation locations. Many foundation locations are in dangerous areas, therefore the contractor has to build temporary roads for construction. Photo: N. Linh
Location VT51 belongs to package No. 1 is located in Bao Yen district, Lao Cai. Since March 20, the joint venture of contractors PC1 - Service of Song Da - Dong Anh Steel Column has approached the location, arranged machinery and human resources to carry out the construction. Currently, the contractor is urgently implementing the reinforced concrete work of the foundation pit.
The contractor has arranged manpower to carry out the work continuously from early morning until about 10 pm at night, taking advantage of the dry weather before the rainy season to ensure the goal of completing all foundation pit work in May 2025.
Location VT69 belongs to package No. 2, also in Lao Cai, this package has just been implemented since the beginning of April 2025. However, contractor PCC4 has calculated a reasonable construction plan, speeding up the work progress.
Location VT167 (package 4) in Yen Bai province, undertaken by contractor Song Da 11. This is one of the foundation locations requiring the largest volume of concrete construction on the entire route, with about 2,000 m3 of concrete. Because it is located on rice fields, near a stream, and the ground is weak, VT167 is designed as a slab foundation.
Song Da 11 Contractor is arranging more than 30 workers to install foundation reinforcement at location VT167. In addition, 38 teams are also arranged to deploy to other locations in package 4. Due to the urgent nature, the project construction force has worked overtime until late at night to meet the project's progress.