Crews dig deep hole in Waterfront Park to put new Burnside Bridge design to the test
Crews are finishing up digging a 125-foot hole to install a test foundation that they'll use to test the earthquake-resistant ...
Burnside Bridge getting seismic test in case of Cascadia Subduction Zone earthquake
The new bridge will be earthquake-ready, so crews are digging a 10-foot-wide, 125-foot-deep hole to see how concrete supports react during a simulated seismic event.