Day 16/365 of Steel – 25 de Abril Bridge

I guess by now you know what I am doing. A 365-day trip through the history of steel in construction, design and art since the end of the 19th century until now. Every day one steel topic, linked to that day. It’s crazy, I know. But it’s a lot of fun!

25 de Abril Bridge
Fig 1: 25 de Abril Bridge
Photo: Svestlana Gumerova, CC0, Unsplash

Today was a piece of cake. The Ponte 25 de Abril was named after the Portuguese Revolution. The bridge is based in part on two San Francisco Bay Area bridges. Its paint is the same International Orange color as the famous Golden Gate Bridge, and its design is similar to that of the San Francisco–Oakland Bay Bridge. Both the Bay Bridge and the 25 de Abril Bridge were built by the same company.

25 de Abril Bridge
Fig 2: 25 de Abril Bridge
Photo: ceiling

The 25 April Bridge is a suspended bridge with a total length of approximately 2,280m. It has a central span of 1,013m and two lateral spans of 483m each. On the north side there are two end spans and on the south side one end span, each measuring approximately 100m. It is one of the longest open-web girders in the world.

The road deck was initially constructed with two lanes in each direction divided by a central separator. On July 23, 1990 the fifth lane became operational and on November 6th 1998 a sixth lane was completed and became fully operational. In August 1999 the rail connection was opened.

About the Author:

Bruno Dursin – Managing Director at Believe in Steel. Bruno has more than 30 years of experience in promoting steel & steel solutions. His clients benefit from his extensive network within the building industry.

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