 33-year-old man arrested for a vehicular assault following a collision. This is what slowed down traffic on the West Seattle Bridge early Friday morning. The incident occurred around 3.30. Seattle police saying they received reports of an injury collision there on the bridge. Near that First Avenue South exit, Seattle Fire Department treated a 33-year-old driver and a 25-year-old female passenger for injuries. The passenger taken to Harborview in serious condition, non-life-threatening injuries were told. The driver was impaired, they confirmed, with alcohol and was arrested for a vehicular assault.