This is the perfect site for an arch bridge. The rock will support the abutments and ... I wish I could combine some of these bridges—say, build a continuous beam bridge across the bay, but ...

The Dynamics of Rock Arches All Images Courtesy Prof Jeff Moore ... We’ve featured several DIY seismometers such as this hacked USB mouse designed to detect elephants on the move.

The New River bridge Today materials like steel and pre-stressed concrete have made it possible to build longer and more elegant arches, including a spectacular 1700 foot span in New River Gorge ...