A Half-Century of Connection: The 25 de Abril Bridge Celebrates Six Decades
Poinews.com – On Thursday, August 6, 2026, Lisbon’s iconic 25 de Abril Bridge will mark its 60th anniversary since opening to the public. Thousands gathered in August 1966 to witness the inauguration of what was then called the Salazar Bridge. Constructed beneath the Estado Novo government in under four years, this landmark spanned the Tagus River at a total expense of 4.49 million contos—roughly equivalent to 22.39 million euros today.
Engineering Marvel and Historical Significance
At the time of completion, officials hailed the structure as Portugal’s most ambitious public undertaking. Daily operations employed approximately 3,000 laborers alongside fourteen civil engineering firms, eleven of which were domestic. Tens of thousands of tonnes of steel formed the backbone of this engineering achievement, establishing international standards for bridge construction.
The suspension bridge features distinctive orange metal towers that drew inspiration from San Francisco’s Golden Gate Bridge. Its dual-deck configuration accommodates both vehicular and rail transport, though train service did not commence until roughly three decades after the initial opening. The central span measures 1,013 metres, earning it recognition as Europe’s longest combined road-rail crossing.
Structural dimensions include anchorages positioned more than two kilometres apart, with primary towers extending 196 metres above the water surface. The southern pier descends approximately 80 metres beneath the riverbed. These measurements underscore the ambitious scale of the project.
Social Impact and Traffic Evolution
Architect Nuno Teotónio Pereira publicly condemned the Salazar administration for the hasty and inadequately organized relocation of thousands of Alcântara Valley residents whose homes were demolished to accommodate access roads and bridge foundations.
Over six decades, vehicle numbers have climbed consistently. The year 2005 set a milestone with 57 million crossings and a daily mean of 156,000 automobiles, fueled by population growth across the Setúbal Peninsula. The pandemic years brought temporary declines: 2020 recorded 115,000 vehicles per day while 2021 saw 124,000, according to National Statistics Institute figures.
Even after the Vasco da Gama Bridge opened in 1998 to connect Alcochete and Lisbon, the 25 de Abril maintained its position as the heaviest-used Tagus crossing, handling more than double the traffic volume. Other major Portuguese bridges, including Porto’s Freixo and Arrábida structures, experience substantial metropolitan congestion but cannot match the daily throughput of the April 25 crossing.
Tolls, Maintenance, and Future Plans
Today, Infraestruturas de Portugal reports that the bridge serves approximately 150,000 vehicles and 174 trains each day, accommodating over 100 million annual users. Toll charges have evolved considerably since 1966, rising from 10 escudos to the present 2.25 euros for class 1 vehicles. Between 1996 and 2010, August tolls were waived following the 1994 “buzinão” demonstration against a 50 percent fare increase, as stipulated in the Lusoponte concession agreement that began operations in 1996.
Earlier this year, another “buzinão” protest organized by the bridge users’ association targeted a 2.29 percent toll hike and called for complete elimination of charges.
Maintenance expenditures average 1.6 million euros annually, covering inspections, materials, equipment, studies, designs, and consulting. An internal team conducts continuous monitoring, supplemented by ISQ (the Institute of Welding and Quality), LNEC (the National Civil Engineering Laboratory), and Parsons—the American firm that originally designed the infrastructure and continues tracking structural performance.
The latest rehabilitation and reinforcement work concluded in March 2024. Looking ahead, Infraestruturas de Portugal is developing plans to repaint the entire structure, aiming to “ensure the preservation and durability of the infrastructure.” In September 2025, Bruno Mascarenhas, a Chega councillor representing Lisbon, addressed the Municipal Assembly regarding the bridge’s ongoing importance to the city.
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