Lol. If you sign back of check every two weeks you are a sheep. Awake and armed but still a sheep.
Civil engineering students made a bridge with carbon fiber re-bars. They put it over a medium sized creek. Just in case things like this happens. This one is longer and over a road. Who's idea was this? Is this one made by students?
This. It's done in a lab. A big civil engineering lab.
Everything engineered has safety factor. Probably 3 for bridges. Meaning bridge that is rated to carry 100lb must withstand 300lb before collaps. May be they didn't anticipate collapsing because they thought loads were way below the safety factor. But to do it over traffic seems dumb and dangerous.
Mechanical Eng fag here. We don't "test" with traffic under the bridge. Finite Element Anayais is done before actual bridge is built and tested. Engineers know where it's suppose to brake according to FEA. Can't really test bridge to distruction in real life but deflection can be measured under load to coralate actual deflection measured and FEA prediction. But to do this without closing road seems negligent.