(Portland, OR)  --  Delays are expected on three of Portland's bridges today as ships begin arriving for the Portland Rose Festival Fleet Week.  Several ships will be traveling up the Willamette River to dock along Tom McCall Waterfront Park between 3 and 4 p.m. today and tomorrow.  Authorities will be raising the Broadway, Burnside and Steel drawbridges at that time to allow the ships to pass through.