A dramatic new bridge to replace a historical span nears completion.

Sundt Construction will build the Willamette Water Supply System's $405 million project

Since Haiti’s magnitude-7.2-earthquake on Aug. 14, which struck the underserved Tiburon Peninsula, Build Health International has marshalled its staff, supporters and resources in Haiti and the U.S., where it is based, to help.

Unprecedented collaborative research on the seismic performance of steel floor and roof diaphragms has improved design methods and relevant standards used throughout the U.S. for steel structures.

While current seismic design codes address life safety issues, the report says stakeholders should also consider re-occupancy and functional recovery time, taking into account the potential impacts to a community as a whole.

Code-based earthquake engineering is on the verge of getting simpler, thanks to the National Earthquake Hazards Reduction Program’s recommendation to replace the traditional seismic hazards maps with an improved seismic hazards database. 

Team building (W)rapper’s ribboned exoskeleton, which is not self-supporting until it is done, relies on falsework for stability during steel erection.

A magnitude 7.1 temblor struck northeast of Los Angeles on Friday, July 5 at 8:19 p.m., a day after a 6.4 magnitude rocked the same area, knocking out power to thousands and prompting questions on proper calibration of a recently introduced earthquake early-warning system.

The son of a pioneer bush pilot in Alaska, structural engineer John Aho spent decades working toward earthquake preparedness.