DCHP-1 Online
marine highway 
a connected series of waterways, as the St. Lawrence Seaway.
- 1954 The new marine highway is, in a very real sense, a huge financial gamble.
- 1962 A joint federalprovincial-state enterprise, the marine highway is the key link in a huge new transportation system.
- 1954 The new marine highway is, in a very real sense, a huge financial gamble.