A car fell off the Glenn L. Jackson Memorial Bridge on Interstate 205 into the Columbia River on Sunday evening, according to Coast Guard officials.
A boat crew was sent out to carry out a search within the vicinity of the area but has not discovered the vehicle yet, said Coast Guard spokesman Michael Clark.
No air assets have been allocated because of the weather conditions. Divers won’t be used in the search until Monday morning.
Portland Police Bureau will lead the investigation starting Monday morning.