A41 - Viaduct Over Ferreira River´s Valley and Viaduct Over A4

Customer:
Alves Ribeiro, S.A.

Local:
Porto - Portugal

Year:
2010

Work done:
- Supply and application of formwork
- Concrete work

Concrete:
15.000 m3

Formwork:
21.400 m2

Intervention area:
Transport Infrastructures


Part of the Douro Litoral concession, this contract consists of the construction of two viaducts:

The Viaduct over the A4 highway, composed of two decks, each with an extension of 332.50 m the deck was built with a cantilever forming traveler system and a shoring system to support it.

The Viaduct over Ferreira river’s Valley, which the East deck totalizes 350 m and the West deck 385 m. On this viaduct, the deck is prefabricated and the formwork was only applied to the supporting pillars.

The two viaducts are composed by cylindrical Ø1.50 m pillars, with heights between 6 m and 16 m approximately.