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 function]
10. water transportation structures
11. landings (marine structures)

Anotations

Scope note:

Structures built generally parallel to the shoreline so that vessels may moor alongside to receive or discharge cargo or passengers. For similar loading and unloading places built to extend from the shoreline out over water, use "piers (marine landings)"; if such places are artificial solid banks or shoreline extensions built parallel to the shoreline, use "quays."