Conceptual and detailed design of a 1279 ft (390 m) long cable-stayed bridge over the Magdalena River in the city of Honda (Colombia). The bridge has a main span of 787 ft (240 m) and two back spans of 246 ft (75 m) each. The deck, 53 ft (16.3 m) wide, accommodates 2 traffic lanes and is suspended on two lateral cable planes. The deck consists of two lateral pre-stressed concrete girders – 3 ft (1.2 m) in depth – which are supported by the stays spaced at 32 ft (10 m).
In the transverse direction, the longitudinal girders are connected with concrete transverse beams 16 ft (5 m) apart. The towers – 127 ft (39 m) high over the deck level – consist of two concrete inclined pylons connected with transverse concrete girders. The abutments take the back stays uplift force allowing the longitudinal movements of the deck. Construction of the main span is carried out using the balanced cantilever method to reduce construction impact on the river.
Pedelta is currently providing technical assistance during construction and geometric control.
This cost-effective solution has been considered in a Design-Build project in lieu of a traditional balanced cantilever bridge with a main span of 721 ft (220 m).
The cable supporting the bridge significantly reduces the environmental impact on the Magdalena River as the foundations are placed out of the River.