Bridges presentation
Picturesque bridges, such as the Kintaikyo at Iwakuni (1673), with its five wooden arches intricately
wedged, slotted, and dovetailed together, are found in Japan. The superstructure of this bridge has
been rebuilt for centuries (the central three arches every 18- 22 years, and the side spans every 36
years), maintaining the fine craft tradition of the bridge keepers for centuries (Figure 4). Shogun's
Bridge (1638), crossing the Daiya-gawa River in the sacred City of Nikko, is the oldest known
cantilever. The bridge was badly damaged in the typhoon of 1902, rebuilt, and exists today bearing
foot traffic. It consists of hewn stone piers pierced with rectangular holes that permit the insertion of
tightly fitting cut-stone struts, two anchor spans, timber beams jutting out in cantilever form, and a
suspended span.
annaabi.ee 
