5:57 PM: Thanks to the texter who points out that this will affect people who use Michigan in Georgetown to get between I-5 and the 1st Avenue South Bridge: A deadly crash has closed Corson/Michigan and it’ll likely stay closed for a few hours. Police say the crash involved a semi-truck and pedestrian.
8:16 PM: All lanes are clear. Commenters who were in the area say the victim was a bicycle rider, not a pedestrian; we will update when police release more information about the crash.
ADDED THURSDAY MORNING: As noted in comments, SPD Blotter now has a summary, including confirmation that the victim was riding a bike when hit.