waterways improvements

Scope Note

Description and building of canals; dredging of rivers and harbors; construction of piers and breakwaters; etc.

Identifier

Broader Term

• 500 water, air, and space transport

Related Terms

• 312 water supply
• 313 lumbering
• 376 water power
• 402 industrial machinery
• 406 weight-moving machinery
• 652 public finance