Possible Clues:

• Waldorf hotel — London music venue, demolished 2009
• One end of New York's Triborough Bridge
• Queens neighborhood on one end of the Hell Gate Bridge
• Waldorf -- (New York hotel)
• Oregon port named for a fur merchant
• New York's Waldorf __ hotel
• City near the mouth of the Columbia
• Queens neighborhood that's also an Oregon city
• Oregon city that was the first permanent U.S. settlement west of the Rockies
• Columbia river port