URI
Notation
624
Caption
Civil and structural engineering in general
Including
Substructures. Earthworks. Foundations. Tunnelling. Bridge construction. Superstructures
Scope Note
Under 624 is classed information about the practice of civil and structural engineering, whereas 69 is for building materials, trades and construction, and 72 is for architectural design and kinds of building according to purpose
Application Note
For details of construction machinery and equipment use special auxiliary numbers 62-1/-9
See also
69Building (construction) trade. Building materials. Building practice and procedure
72Architecture
Broader class
62  Engineering. Technology in general
Narrower classes
624.01/.07Special auxiliary subdivision for civil and structural engineering
624.1Substructures. Earthworks. Foundations. Tunnelling
624.21/.8Bridge construction
624.9Superstructures (except bridges). Superstructures complete in themselves