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Uima River Bridge

A41 Motorway | Portugal | 2011

This bridge, on the A41 motorway, crosses the Uima River valley at a maximum height of 50m.

The bridge consists on a continuous superstructure over the full length with two concrete decks parallel and independent of 12 spans: 36 + 7 x 45 + 70 + 110 + 90 + 54 = 675 m.

According to the construction method the bridge is divided into two different cross-section. The bridge deck consists of a single-celled box girder in prestressed concrete built by the balanced cantilever method in cast “in situ” with 324m long. The viaduct has a double beam cross-section, constructed by underslung movable scaffolding system and has a length of 35m.

The piers are in reinforced concrete and reach a maximum height of 45m. Their shaft has an “I” transversal cross-section with increasing width at the top. The piers have direct foundations on altered schist formations.

The construction lasted for 24 months and was completed in January 2011.

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Uima River Bridge

A41 Motorway | Portugal

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