The point where the railroad crosses the Chagres River is known as Gamboa (a fruit like the quince). The bridge is built on a curve and spans an opening 1,300 feet wide. the channel span is a 200-foot riveted truss, and it is connected with the banks by 14 rough-plate-girder spans, each 80 feet long. From the bridge one catches a glimpse of the northern entrance of Culebra Cut.
A new townsite has been laid out at the northern end of the bridge. Pending the use of the relocated line between Gamboa and Paraiso, after the opening of the Canal, the trains leave the relocation here, back down across the dike that separates the excavation in Culebra Cut from the Chagres River, and run up the old line of the railway to Pedro Miguel.