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A major overhaul of Lisbon's Viaduto Duarte Pacheco, Portugal, is under way. The 40 year old, seven span concrete structure carries road traffic across an inter-city rail line and a motorway. It is undergoing repairs and strengthening to extend its life. Peri Up scaffolding has been suspended from the viaduct deck and 'wrapped' around its piers to provide access without interrupting road or rail traffic below.