The design and construction of the Red Line extension will be carried out for 321.9 million euros by the Mota-Engil/SPIE Batignolles consortium.

The extension of the Lisbon Metro's Red Line between São Sebastião and Alcântara will go ahead, passing through Amoreiras, Campo de Ourique and Infante Santo. On December 4, Metro de Lisboa approved the award of the design and construction contract for the extension of the Red Line to Alcântara. to the consortium formed by the construction companies Mota-Engil and SPIE Batignollesfor a total of 321.9 million euros.
The public tender for this contract was launched on February 1st of this year. O its base price had been set at 330 million.
Five competitors submitted bids. In addition to the Mota-Engil and SPIE Batignolles Internacional consortium, the following consortia competed: Teixeira Duarte with Casais, Alves Ribeiro, Tecnovia, EPOS - Empresa Portuguesa de Obras Subterrâneas and Somafel; Acciona Construcción with Domingos da Silva Teixeira; and, finally, ZAGOPE with COMSA and Fergrupo. The respective contract will be signed after the legal deadlines and subsequent procedures have elapsed, in accordance with the rules set out in the Public Contracts Code.
The total eligible cost of the Red Line extension is 405.4 million euros. It is part of the Resilience Recovery Plan (PRR) and has a European investment of 304 million and national financial support of 101.4 million.

According to Metro de Lisboa, the extension of the Red Line to Alcântara "it will serve areas with a strong attraction and generation of travel, with significant housing density and employment, schools, commerce and services, as well as being the target of major urban rehabilitation, such as the Alcântara area". It will be about 4 km long and will have four new stations: Amoreiras/Campolide, Campo de Ourique, Infante Santo and Alcântara, the latter of which will connect to the future surface metro line, LIOS, with a link to the municipality of Oeiras. You can find out more about the stations here e about the project here.
It is estimated that the daily demand captured in the four stations that are part of this extension will correspond to an increase of 4.7% of customers across the Metro network, around 87.8% of the estimated increase in demand corresponds to current public transport users. The demand captured from the segment of current individual transport users represents 11.8%, corresponding to 3.7 thousand fewer individual vehicles circulating daily, with time gains of 72%, of which 53.2% correspond to current users. Considering the 30-year analysis, the emissions avoided will amount to 175.6 thousand tons of CO2, and the energy savings will amount to 29.2 thousand toe.
It is also estimated that the transfer of passengers from road to the Lisbon Metro will avoid the emission of 6.2 thousand tons of CO2 equivalent (CO2) in the first year of operation. The Lisbon Metro expansion plan "thus aims to contribute to improving mobility in the city of Lisbon, promoting accessibility and connectivity in public transport, promoting the reduction of travel times, decarbonization and sustainable mobility"concludes the company.