Rodovia dos Imigrantes - São Paulo - Santos - Highway

— Project Description:

The designed stretch is approx. 17.5km-long and the main works are three tunnels (3 lanes section) for a total length of 8.2km and 9 viaducts (more than 4200m of length). Despite of the use of the most modern road engineering technologies, a long investigation and design phase was required to address continuous environmental legislation evolution and the public awareness of environmental protection that was growing day by day. Due to the geological/geotechnical context, the project was oriented to transfer under Serra do Mar massif most of the works. Longer tunnels and shorter viaduct were built to allow a faster and cheaper construction, and to guarantee a less aggressive impact on the landscape. The 3.1km-long down slope tunnel (TD1) is the longest highway tunnel in Brazil. This solution reduced interference with the forest to a minimum with only a tunnel portal and one emergency exit. Value engineering design was also carried out to reduce viaducts impact by increasing spans width.

— Description of Services:

Preliminary Design, Basic Design and Detailed Design of all civil works and Detailed Design of Equipment and Safety System.