This post originally appeared on Orphan Road.
Okay, so this is blatant engineering-industry boosterism, but it’s still got some neat stories and engineering geekery on some big transit and other infrastructure projects in and around Seattle. Did you know that the low-level bridge over the Duwamish is the “world’s largest concrete swing bridge”? Now you do!
Tons of gravel! Thousands of cubic yards of dirt! It reads like a Puget Sound version of Modern Marvels.