Ratsadaphisek Bridge or Saphan Khao is located on Ratsada Road. The city ruler named the bridge after the Ratsadaphisek (Silver Jubilee) Celebrations of King Rama V. It is a contemporary bridge of the railway age. It saw World War I and II, and was saved from bomb attacks of the Allies by being camouflaged with paint and a claim made by Mrs. Lucy Scarling, the then director of the Vijjanari School and advisor for the Allied army, that the bridge was not used for strategic purposes. Since this wooden bridge reinforced with metal bars was dilapidated, it was rebuilt in March 1917. The new reinforced concrete bridge is more durable than others of the same age which cannot be found nowadays. Signs featuring a white rooster and a garuda adorn the head of the bridge.