An agonizing civic decision must be made over whether to rebuild in the air or at grade.

The emergency stabilization of the 36-year-old West Seattle Bridge reached a new milestone after external post-tensioning and the release of a damaged Pier 18 bearing was completed Nov. 10, allowing crews to move toward wrapping girders in carbon fiber.

With mass-timber structures gaining momentum in the U.S., ENR takes a look at some of the largest wooden structures in the world and the future of lumber-based construction.

The U.S. Green Building Council is seeking input to further develop an equity strategy for its green-building programs. 

ASHRAE’s move into a 1970s-era building near Atlanta is designed to be a living laboratory for sustainable retrofits. 

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. 

Arena’s building team in quake-prone Seattle uses 4D BIM to manage the constructibility nightmare associated with supporting an iconic cover during construction