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. hydraulic structures
9. [hydraulic structures by function]
10. water distribution structures

Additional parents:

1. top of the aat hierarchies
2. Associated Concepts Facet
3. Associated Concepts
4. scientific concepts
5. physical sciences concepts
6. earth sciences concepts
7. earth features
8. physical features
9. hydrographic features
10. man-made hydrographic features

Narrower term/s

• qanats

Anotations

Scope note:

Man-made conduits for carrying water over long distances, usually by means of gravity, particularly structures that include channels and elevated sections on bridgelike structures, optimized by the Romans and based on inventions of earlier cultures. The term derives from Latin aqua, meaning "water," and ducere, meaning "to lead." In modern engineering, the term refers to any system of pipes, ditches, canals, tunnels, and supporting structures used to convey water from its source to its main distribution point.