Along with L3, another of the main projects to complete the modern metropolitan rail network of Lima and Callao is the future Line 4. The first steps date back several years. On May 9, 2012, the director of Investment Promotion at ProInversión (the state agency in charge of fostering and organising concessions in infrastructure), Héctor René Rodríguez, announced that the Ministry of Transportation and Communications (MTC) decided that the construction of the Line 4 of the metropolitan railway be undertaken at the same time and in parallel to that of Line 2.
L4 will connect the east with the west of the city. Specifically, from the District of La Molina to Ventanilla, and will also pass through the Jorge Chávez International Airport. The next stage was in March 2014, when the first section of this branch of L4 was awarded, together with the whole of Line 2. That is, it was included in the same construction plan for L2.
The selected consortium was “Metro de Lima Line 2”, formed by Odebrecht, Graña y Montero, Construtora Andrade Gutierrez, Queiroz Galva and two Spanish companies, ACS (through its subsidiary Iridium) and FCC (through Vialia Concesiones), with Metro Madrid offering support as technical advisor of the project. In turn, this consortium relied on TYPSA to carry out the construction design of the section of Line 2, between the Benavides Station to the port of Callao, and of the entire L4 branch.
In these sections, the company was responsible for the design of all the elements that make up the system and the necessary accessory works, which involve 14 underground kilometres dug using a tunnel boring machine, and 14 stations excavated using the cut and cover method. The construction and operation over 35 years of Line 2 and the branch to the L4 airport is a grand infrastructure project that has been allocated a budget of 3.800 billion euros.
Its relevance has made it one of the largest engineering projects in Latin America. The L2 will have 27 kms running underground and 27 stations, while the Av. Faucett-Av. Gambetta of the L4 will be eight kilometres in length, also underground, and eight stations; one of them, the one corresponding to the connection with the airport.
The importance of this project also lies in the fact that it will be the first underground and fully automatic mass transportation system in Peru. It is estimated that the L2 and the L4 branch of the Lima and Callao Metro will move around 660,000 passengers a day and will benefit 2.5 million people, especially the residents of the following 10 districts: Ate, Santa Anita, El Agustino, San Luis, La Victoria, Cercado, Breña, Bellavista, Carmen de la Legua and El Callao. In addition, they will be connected to the current L1 and future lines (L3, L4 and L6). Regarding the development of the rest of the L4, in 2014 Proinversión called a public tender to recruit the consultant who will be in charge of carrying out the pre-investment studies.
Subsequently, on April 15, 2015, the consultancy contract of the L4L Consortium was signed. This Joint Venture is formed by Euroestudios SL, Geocontrol Andina SAC, Geocontrol SA, TEC-Cuatro SA-Peru Branch, Kapak Consulting SA, Logit Engenharia Consultiva Ltda. And Qursor SAC The work was divided into three stages. The first of these, the “Pre-investment studies at profile level”, in which eleven possible alternatives were traced to select the most indicated. Finally, this branch will be about 28 kilometres long and will run underground from the end of the stretch of Line 4 (already put for tender), which is between Av. Gambetta and Av. Faucett, to the east of the city through the corridor of Avenida Javier Prado.
Secondly, the consortium was then entrusted with the “Pre-investment Studies at Feasibility Level”, in which the chosen route was evaluated from functional, socioeconomic, financial and environmental viewpoints, in order to ascertain the project’s viability.
As indicated by the awardees “In this stage, all the underground works of the route: tunnel (with tunnel boring machine, conventional methods or sheltered screens), stations (between screens or in large caverns) and access wells to stations or for ventilation and evacuation.