The “new” bridge over the Gilão River, in the heart of Tavira, arose from the need to create a new connection between the banks due to the deterioration of the “military bridge”. The new reinforced and prestressed concrete structure is made of piers with a modified rectangular section and ribs at the corners with 3.20m … Continued
Duarte Pacheco Viaduct is a reinforced concrete structure, with 355 metres long between the axes of the abutments, designed in 1937 by João Alberto Barbosa Carmona and built in 1944 by “Sociedade de Empreitada de Obras Públicas, Lda” (SEOP, Lda). In 1993 and 1994, LNEC performed inspections and tests, which revealed cracks associated with alkali-silica … Continued
Inaugurated in 1955, the Marechal Carmona Bridge over the Tejo River in Vila Franca de Xira was, at the time, the closest bridge to Lisbon connecting both riverbanks. Spanning 1224 meters, the bridge comprises a central section made up of five metallic spans, each 103.50 metres long, and two access viaducts made of reinforced concrete, … Continued
Arrábida bridge crosses the Douro River, connecting Vila Nova de Gaia to Porto. Built in 1963, the bridge has a total length of 493.20 metres with an arch of 270 metres in chord and 52 metres in height. The continuous deck, spanning the entire 493.2 metres, consists of a girder with 12 beams, measuring 26.50 … Continued
Located on IC8 between Proença-a-Nova and Perdição, the bridge over the Ocreza River extends over 420 metres on a single-cell concrete box girder deck with longitudinal prestressing. The cross-section is a variable-height box, 15.30m wide made up of three spans, of which the main one over the river is 190 metres long. The bridge was … Continued
