piles, up to in diameter, were driven down to under mean sea level. Environmental pressure throughout the project resulted in the left-bank viaducts being extended inland to preserve the marshes underneath, as well as the lamp posts throughout the bridge being tilted inwards so as not to cast light on the river below. Toll Northbound traffic (to Lisbon) is charged a toll while traveling southbound is free. Tolls are collected through a toll plaza located on the south bank of Tagus, near Montijo. As of 2020, taxes range from €2.85 (passenger cars) to €12.20 (trucks). See also 25 de Abril Bridge Lezíria Bridge List of bridges by length Megaproject Notes References Sources www.civilium.net External links Vasco da Gama Bridge on bridge-info.org Portal das Nações Discover the Ponte Vasco da Gama BBC news story of bridge opening Flickr photos of bridge Cable-stayed bridges in Portugal Bridges over the Tagus Bridges completed in 1998 Toll bridges in Portugal Buildings and structures in Lisbon District Buildings and structures in Setúbal District Parque das Nações Bridges in Lisbon 1998 establishments in Portugal