Transportation officials say a stretch of the Alaskan Way Viaduct settled an inch last month.
They told state legislators Friday that there is no risk to public safety from the newly discovered subsidence of the elevated highway. KUOW's John Ryan reports.
The viaduct sank an inch during a two-week span in November, right next to a giant shaft that's being dug near King Street and Yesler Way.
That access shaft is needed to dig up and repair the tunneling machine known as Bertha.