"Navigable waterways" refer to bodies of water, such as rivers or canals, that can be traveled by boats or ships. It means that these water paths are wide and deep enough to allow for convenient transportation and shipping. Full definition
[161] There are around 4,400 miles (7,100 km) of navigable waterways in England, half of which is owned by the Canal and River Trust, [161] however, water transport is very limited. (en.wikipedia.org)
In 2006, he took up a role as Directeur Général for navigable waterways in France. (cnbc.com)
The following are a few of the Federal statutes that apply to individuals working on navigable waterways: (mytexasinjurylawyers.com)