The Ministry of Public Works, Housing and Mobility of the Government of the Canary Islands reports this Friday from the completion of the draft of the second Erjos tunnel, within the construction works of the highway between Santiago del Teide and El Tanque, which is part of the Insular Ring of Tenerife.
The Erjos tunnel consists of two parallel tubes, one approximate length of 4,855 metersto which two false tunnels should be added – 140 meters in the south mouth and 100 meters in the north mouth -, with a total route of 5.1 kilometers, which makes it the longest road tunnel Canary Islands and the most important and largest road infrastructure developed by the regional government, and the one with the greatest value at the national level, not only due to the volume of investment, but also due to the social, economic and mobility needs it covers.
The first cale occurred on June 26, 2023and this second, in the advance phase, on August 15.
The drilling, which has been carried out mainly by blasting, has been carried out in two phases with the aim of reducing the pressures transmitted by the ground in the process of stabilizing the vault: a first advance at the top and a second called destroys, in the remaining part.
Drilling is currently being carried out in the destruction phase, in the lower part, the Government details in a note.
To carry out this work, included in the Highway Agreement with the Statea significant deployment of specialized operators and machinery has been designated to carry out the drilling.
Furthermore, they have established three work shifts, seven days a week and 24 hours a dayemploying more than 300 direct workers.
The investment budget of the project amounts to 256 million euros and the works were awarded in September 2019 to the joint venture formed by FCC Construction, Syocsa-Inarsa and El Silbo. To date, more than 50% of the work has already been completed, and it is expected to be completed in the first half of 2025.
The tender budget includes environmental measures, which will involve an investment of 18 million euros, consisting mainly of the recovery and consolidation of habitats of community interest, as well as the restoration of the La Grama quarries and the Bilma mountain. , and the construction of an edge park that protects the core of Santiago del Teide.
