3:39 PM: WSDOT says southbound Highway 509 just southeast of West Seattle is blocked by a crash, and vehicles are being diverted to the Myers Way exit. No other details so far.

3:48 PM: What’s above is the newest image from the WSDOT traffic cam closest to the scene.

4:40 PM: Two SB lanes have reopened.

10:50 PM: Here’s what the State Patrol says happened: A 32-year-old man driving a 2009 Toyota Camry “was traveling southbound on Highway 509 approaching Myers Way in unknown lane of four (lanes). (The driver) attempted to pass another vehicle on the left shoulder, lost control and crossed all lanes where it struck the barrier on the right shoulder. Driver was ejected and came to rest in the center lane. (The car) came to rest in lane four and on left shoulder. Roadway was blocked for two hours and 31 minutes.” The WSP’s media memo says the ejected driver had not been wearing a seat belt and was taken to Harborview Medical Center.