Spanning the mouth of the Tamsui River that flows through Taipei, the Danjiang Bridge is integral to the infrastructure upgrading program of northern Taiwan. The Tamsui River estuary is an important natural ecosystem flanked by the urban centres of Tamsui to the East and Bali to the west. The bridge minimises its visual impact by using a single concrete mast to support its main 450-metre span with dedicated road, cycle and pedestrian lanes.