Società di Progetto Concessioni del Tirreno S.p.A. was founded on 9 December 2021 following the awarding of the tender launched by the then MIMS (now MIT – Italian Ministry for Infrastructure and Transport) for the management of the motorway stretches A12 Sestri Levante-Livorno, A11/A12 Viareggio-Lucca, A15 turnoff for La Spezia and A10 Savona-Ventimiglia (French border).

The construction sites for the “Ligurian-Tuscan Motorway” (A11/A12) opened in 1964, with the opening of the first segment (between Viareggio and Pisa) to traffic in June 1967.

The design of the “Autostrada dei Fiori” (A10 Motorway) dates back to 1962-1966, with the entire stretch coming into full operation in 1971.

Previously, the two stretches were managed by the companies SALT p.A. and Autostrada dei Fiori S.p.A. respectively (both belonging to the ASTM Group).