Gerona, Spain

LA CODINA TUNNEL

Client

Infraestructures de la Generalitat de Catalunya (Regional Government of Catalonia Infrastructure Agency)

Year

2021

Key facts

Road tunnel inaugurated in 2009, 1470 m long, 15m wide with 3 lanes, shoulders and pedestrian walkways.

Tunnel convergence issues since construction on a 50 m section.

Construction method: NATM (explosives and mechanical)

Geology: Tertiary soils composed of shales and sandstones with soft clay intercalation and a presence of water in rock joints. Landslides and significant over-excavation on the tunnel crown and shoulders made work more difficult.

Services

Detailed design for repairs.

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