to be "better than minimum adequacy to tolerate being left in place as is". Its foundations and railings met the acceptable standards and no immediate corrective action was needed to improve it. The George Washington Memorial Bridge underwent extensive seismic retrofitting in 2011 and 2012 at a cost of $5.7 million. During a regular inspection in October 2019, WSDOT structural engineers determined that an outside stringer beam on the southbound side of the bridge had corroded to the point of creating a visible sag in the roadway. Southbound traffic was reduced to two lanes for an emergency repair that cost $500,000 and took seven days (out of a scheduled ten days). Accidents and incidents On November 27, 1998, King County Metro driver Mark McLaughlin, the driver of a southbound route 359 Express articulated bus, was shot and killed by a passenger, Silas Cool, while driving across the bridge. Cool then shot himself as the bus veered across two lanes of traffic and plunged off the bridge's eastern side onto the roof of an apartment building below. Herman Liebelt, a passenger on the bus, later died of injuries he sustained in the crash. According to estimates from WSDOT, repairs to the bridge cost over $18,000. Medical claims from the victims against King County amounted to $2.3 million. A service for McLaughlin was held on December 8, 1998, at KeyArena in Seattle. Numerous state and county officials and over 100 transit drivers attended the service, which included a procession of over eighty Metro buses and vans. Metro retired the number 359 as a route designation and replaced it with route 358 in February 1999, as part of a restructure of service on Aurora Avenue. On February 15, 2014, Route 358 itself was retired, and replaced with the RapidRide E Line. On September 24, 2015, five people were killed and fifty were injured when an amphibious "duck tour" vehicle crashed into a charter bus on the bridge in a collision that also involved two smaller vehicles. According to a representative from the Chinese consulate, all of the students were foreign-born. The students all attended North Seattle College, and were on their way to Safeco Field for new student orientation. One witness reported that it appeared as though the duck boat veered into the oncoming bus, after crossing the center line. Some blame for the collision was placed on the narrowness of the bridge