The Mayor of Boston has stopped all construction projects because of COVID-19. From the Boston Herald:

That means all big and small projects must be stopped and the work zones secured, the mayor said. The only exceptions will be emergency projects, mainly roadwork and gas hookups. The city will reassess after the two-week span, Walsh said.

No such ban has been proposed in Seattle or Washington or anywhere else at this point. It is unclear how lockdowns in other states are impacting construction projects. So far, construction projects continue in Washington. We’ll let you know if we see anything change on this.