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 future ...
The Weather Channel on MSN14d
Updated USGS Earthquake Map Highlights Risk Across U.S.
N​early 75% of the country is at risk for a potentially damaging earthquake, according to a recently updated USGS map.
Phys.org29d
Two of history's most damaging earthquakes struck on January 17
Performance and functionality. It took two twentieth-century earthquakes to bring performance-based design front-and-center. Its origins date back to the mid-eighteenth-century BC when ...
Seismic testing being done for new Burnside Bridge project in Tom McCall Waterfront Park
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.