This is so cool: Tasked with adjoining a 17th-Century Dutch island fortress to a nearby piece of land, Netherlands-based architecture firm RO&AD devised an unobtrusive structure that's being cheekily called the Moses Bridge.
Constructed of engineered wood produced by Accoya, which uses nontoxic treatments in their processes, the watertight bridge is Cradle to Cradle Gold Certified.
I believe the design would not be practicable for a flowing river, even if it didn't go all the way to the bottom, as there would likely be some kind of damming effect with ecosystemic consequences. But it's a perfect idea for a moat like the one surrounded the fort. And I'm digging that infinity-pool aesthetic.