Abstract:Located in Yangmingshan National Park, Yangjin Highway Magang hot spring scenic spot, the main hole span 134m, arch height 27 meters, SRC state arch bridge. Because it is located in a severe corrosion area with strong sulfur gas, the bridge should pay attention to landscape and ecological protection, and corrosion prevention is the focus of design. The lower arch thickness is 1.8-3.0 m steel reinforced concrete steel bone box girder, using hot-dip galvanized treatment, the main beam is 1.0 m thick hollow plate beam, using hot-dip galvanized steel bar and sulfur-resistant cement coating. After the bridge was completed and opened to traffic in 1994, it has become one of the scenic spots in Yangmingshan Scenic Area.