PORTLAND -- High river levels were forcing changes for the Rose Festival's Fleet Week that mean more lengthy traffic delays and more bridge lifts than usual.
Ships started arriving Wednesday at noon; the large ts of the ships coming in between 3 and 5 p.m.
Latest: Check traffic alerts
Portland's harbor master said a Navy destroyer the USS Shoup was too tall to make it under the Steel Bridge this year, so it was replaced by the frigate USS Ingraham, which is about 20 feet shorter.
A total of 12 ships will dock along Portland's waterfront for the Rose Festival this year. People traveling over the Broadway Bridge, Steel Bridge, Morrison Bridge and Burnside Bridge will have to deal with traffic delays when the bridges are raised.
Commuters have been encouraged to use the Fremont Bridge, Marquam Bridge, or Hawthorne Bridge instead, if possible.
TriMet officials were also warning passengers that MAX and bus services will be delayed as well.
As for people who want to tour the ships during the Rose Festival, some will be open for tours on Friday, Saturday and Sunday from 9:30 a.m. 3:30 p.m.
Visitors should expect enhanced security checks and should bring a government-issued photo ID.