Three federal highways pass through Grand Forks: U.S. Route 2, Interstate 29, and U.S. Highway 81. U.S. Highway 2, known as Gateway Drive in the city, runs east to west through the northern part of town and is a four-lane highway. The highway is the primary connection between Grand Forks, East Grand Forks, the Grand Forks Air Force Base, Grand Forks International Airport, and Crookston, Minnesota. Interstate 29 runs north to south along the western part of the city, officially multiplexed with U.S. Highway 81 in the Grand Forks area. The U.S. Highway 81 business route, Washington Street and 32nd Avenue, runs through many of the city's major commercial districts.