IP4 (A4) - Marão Tunnel (under design/construction contract)

Designation of the Works

IP4 (A4) – Marão Tunnel (under design/construction)

Works Owner

Infraestruturas de Portugal, S.A.


Infraestruturas de Portugal, S.A.


Design/Build contract for the completion of the Double Road Tunnel, started in May 2009 and suspended in 2011. Each gallery has a section of 107 m2 and the total length to be excavated is 2009 ml. Several connecting galleries between the 2 tunnels are also included. Estimated excavation volume: 403,948 m3. Estimated volume of concrete: 120,473 m3.


Vila Real, Portugal

Start Date

October, 2014

Execution Period

17 months

Scroll Up