The phrase "major waterways" refers to large and important bodies of water, such as rivers, lakes, or canals, that are essential for transportation, trade, and the overall functioning of a region or country. Full definition
The data gathered from this project could be used to inform policies and decision - making about other major waterways across the globe. (treehugger.com)
Launched in 1948, it aimed to divert the flow of major waterways, industrialise Siberia, and turn the infertile steppe into a breadbasket. (newscientist.com)
A statement issued by the Coast Guard late Wednesday said Poulin «has suspended future rulemaking decisions and directed a formal risk identification and evaluation of the Hudson River, known as a Ports and Waterways Safety Assessment (PAWSA)... a disciplined approach to identify major waterway safety hazards, estimate risk levels, evaluate potential mitigation measures and set the stage for implementation of selected measures to reduce risk.» (dailyfreeman.com)