The city of Portland said that demolition will kick off Monday afternoon, preceded by localized text alerts, a series of sirens, then a five-second countdown.

A planned explosion rocked Northwest Portland on Monday as contractors began demolishing the burned-out Centennial Mills building in the Pearl District. The massive explosion could be heard across ...

Portland city officials had said it could take up to two weeks to bring down the charred Centennial Mills building. The demolition ended up taking less than two days.

Add Yahoo as a preferred source to see more of our stories on Google. A planned blast sent a rooftop water tower flying as demolition began on a fire-damaged Portland building more than 100 years old.