Steel is scarce. Wood is not an option. And you need a boat now. These wartime circumstances drove innovation in all kinds of crazy directions, and one somewhat less crazy direction — concrete boats.

This June the waters of Lake Sammamish will see sailboats, Jet Skis and a fleet of unconventional watercraft — concrete canoes. The University of Washington will host the American Society of Civil ...

Steel is scarce. Wood is not an option. And you need a boat now. These wartime circumstances drove innovation in all kinds of crazy directions, and one somewhat less crazy direction — concrete boats.

In February, Maryland’s Department of Natural Resources partnered with TowBoatUS to sink a 52-foot cement boat in the Chesapeake Bay just north of Kent Island’s Love Point. We had some questions about ...