Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Built Environment (hierarchy name)
4. Single Built Works (hierarchy name)
5. single built works (built environment)
6. [single built works by specific type]
7. [single built works by function]
8. transportation structures
9. [transportation structures by form]
10. bridges (built works)
11. [bridges by form]

Anotations

Scope note:

Japanese bridge often found in decorative gardens made from eight narrow wooden planks arranged on supports to form a zigzag pattern. The term is used for all similar Japanese bridges, even if they have greater or fewer planks. The tradition of such bridges comes from the poem Ise Monogatari (The Tales of Ise) in which the story's protagonist and his companions stop to rest at a famous iris marsh traversed by an eight-planked bridge.