The motorcycle operator involved in a crash that occurred on Tuesday, October 2, 2018, on southbound Interstate 5 at the Interstate Bridge has died at an area hospital while receiving treatment for injuries suffered during the traffic crash. The motorcycle operator has been identified as 55-year-old Michael D. Dallasta of Vancouver.

There have been no citations issued or arrests made as a result of this investigation at this time.

Investigators believe there are witnesses to this crash that have not spoken to investigators at this time. Anyone with information about this investigation should contact Officer Garrett Dow at 503-823-5070 or Garrett.Dow@portlandoregon.gov

Dallasta's death was the 28th traffic crash fatality investigated by the Major Crash Team in Portland in 2018.

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On Tuesday, October 2, 2018, at 10:46 p.m., Washington State Patrol and officers assigned to the Portland Police Bureau's North Precinct responded to a crash on southbound Interstate 5 at the Interstate Bridge.

Officers and emergency medical responders arrived at the scene and located an adult male lying on the roadway. The man was suffering from serious injuries. The injured man was transported to an area hospital by ambulance for treatment of what were believed to be serious life-threatening injuries.

Based on the injured man's condition, the Portland Police Bureau Traffic Division's Major Crash Team responded to lead the traffic crash investigation.

Preliminary information suggests the man injured in this crash was operating a Harley Davidson motorcycle at the time of the crash. As the motorcycle operator traveled south on Interstate 5 he collided with a Nissan Sentra that had slowed because of construction zone traffic congestion. This area of Interstate 5 was reduced to one lane in the southbound direction because of road construction occurring at the time. The driver of the Nissan remained at the scene and cooperated with the investigation.

There have been no citations or arrests at this time in the investigation. Based on information learned at this time intoxication is believed to be factor in this Major Crash Team investigation.

Anyone with information about this investigation should contact Officer Garrett Dow at 503-823-5070 or Garrett.Dow@portlandoregon.gov

The Portland Police Bureau is committed to working with our partners in government and the community to create safer streets and work towards reducing, and eventually eliminating, traffic fatalities as part of Vision Zero.

To learn more about the City of Portland's Vision Zero effort, please visit: http://www.portlandoregon.gov/transportation/40390

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