Three consecutive Extradosed bridges are part of a north beltway of La Paz in Bolivia.

In 2007, the Municipal Government of La Paz awarded the design and construction of The Triplets Bridge Project to the JV “Consorcio Asociación Accidental Progreso”.

After a study of alternatives, where the bridge should have a cable supported deck in order to fulfill the technical specifications of the contract, it was proposed to modify the structural type to improve the visual impact on the landscape of La Paz.

Therefore, it was proposed an extradosed bridge type, which reduces the height of the pylon, and a single plane of stays to allow a more transparent view The Triplets have similar structural pattern and basic idea, but the dimensions are different.

The deck is connected monolithically with the two piers, forming a portal frame, and rests on neoprene bearings at the abutments.