• Location: Tamaringo-Pasto Road over The Juanambú River (Colombia) SEE MAP
• Scope of Works: Detailed design
• Structural type: Continuous box girder
• Construction process: Balanced cantilever using movable scaffolding
• Overall length: 200,0 m
• Spans: 45,0+90,0+45,0+20,0 m
• Deck width: 8,9
• Deck maximum height: 75,0 m

The Viaduct of Juanambú is located between the villages of Taminango and Pasto and crosses the Juanambú river canyon.

The deck is a continuous prestressed concrete girder, with 45,0+90,0+45,0 m spans, built as a balanced cantilever using movable scaffolding except the lateral span, which was built using conventional falsework.

The cross section of the deck is a concrete box. The depth varies from 4,82 m at the piers, to 1,82 m in the middle of the spans and abutments. The width of the bottom slab of the box section is 5.0 m and the top slab is 8,9 m wide. So, there are two cantilevers 1,95 m long to complete the section.

The piers have a truncated pyramidal shape with a hollow box section and shallow foundations.