Pranto River Bridge

The structure of this bridge is composed of three modules divided by expansion joints. The total length is 1702m and the longitudinal alignment evolves at a maximum height of 30m. The superstructure comprises two parallel and independent prestressed concrete decks. Two different design solutions were adopted for each one of the decks: a box girder […]

Ponte da Barra do Dande

A ponte da Barra do Dande, na estrada que liga Luanda ao Ambriz, é constituída por uma superestrutura contínua de 4 tramos, formada por um tabuleiro em laje vigada de betão armado e pré-esforçado apoiado em pilares/estaca e nos encontros. A obra, com um comprimento total de 105m, tem a seguinte modelação de vãos 25 […]

Uima River Bridge

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 […]

Ponte sobre o rio Sousa I

A ponte, que vence o vale do rio Sousa a uma altura máxima de 80m, é constituída por dois tabuleiros independentes com um comprimento total de cerca de 310m. Cada tabuleiro é constituído por um caixão monocelular, em betão armado pré-esforçado, de secção variável decrescente dos pilares para os vãos. Os tabuleiros foram construídos por […]

Douro River Bridge

The bridge superstructure consists of two continuous, concrete decks, parallel and independent, with the following spans: 65 + 3  115 + 150 + 100m, thus the 6 spans have a total length of 730m. Each deck consists of a single-celled box girder in prestressed concrete and were cast “in situ” by the balanced cantilever […]

Vila Pouca de Aguiar Viaduct

The viaduct crosses the valley of Vila Pouca de Aguiar, at a maximum height of 90m, and the Corgo River and, also, the EN2 (National Road 2). This is one of the most sensitive sections of the A24 motorway, for which some pioneering solutions in terms of nature conservation were designed, with the need for […]

Corgo Valley Bridge

The bridge crosses the imposing Corgo River valley at a maximum height of 80m. With a steep curvature and large spans, it is an elegant structure set in the spectacular scenery of the Douro valley vineyards. The superstructure is continuous with two reinforced, prestressed parallel decks (6.00m apart) and an average length of 625m. The […]

Laje Brook and Grande da Pipa River Viaduct

The right deck is a fifteen span box girder, with a total length of 1319m, and the left deck a fourteen span box girder 1279m long. The decks were cast “in situ” in 5 meter segments using the balanced cantilever method. The piers have a maximum height of 50m with hollow, rectangular constant cross-section shafts. […]

Arade River Bridge on A2 motorway

The total length of this structure is 777m and it was built using “in situ” reinforced and prestressed concrete. The bridge is a five span continuous superstructure, comprising two parallel box girder bridge decks built using the balanced cantilever method in 5.00m segments. The total bridge length is 397m. Each of the two parallel access […]

Rainha D. Amélia Bridge rehabilitation

The Rainha D. Amélia railway bridge was built in 1903 and is a 14 span steel girder bridge, each span being 60m long. The bridge’s total length is 840m. This is a trough-bridge with two truss girders. Piers and abutments are in masonry founded on steel cofferdams. Several years after being deactivated from the railway […]