Final answer:
The length of the longest runway at Portland International Airport is approximately 11,000 feet.
Step-by-step explanation:
The length of the longest runway at Portland International Airport is approximately 11,000 feet.
Portland International Airport (PDX) has three runways. The longest runway, Runway 10R/28L, is 11,000 feet long and is used for larger aircraft. This runway is made of asphalt and can accommodate planes like Boeing 747 and Airbus A380.
The other two runways at PDX are Runway 3/21, which is 6,000 feet long, and Runway 10L/28R with a length of 9,825 feet