World's first 3D-printed bridge opens to cyclists in Netherlands

Crossing printed from 800 layers of concrete could take weight of 40 trucks, designers say

Dutch officials have toasted the opening of what is being called the world's first 3D-printed concrete bridge, which is primarily meant to be used by cyclists.

There was applause as officials wearing hard hats rode over the bridge on their bikes at the inauguration in the southeastern town of Gemert on Tuesday.