The George Washington Bridge (known informally as the GW Bridge) is a suspension bridge spanning the Hudson River, connecting the Washington Heights neighborhood in the borough of Manhattan in New York City to Fort Lee in New Jersey. Interstate 95 and U.S. Route 1/9 cross the river via the bridge. U.S. Route 46, which is entirely in New Jersey, ends halfway across the bridge at the state border. The bridge has an upper level with four lanes in each direction and a lower level with three lanes in each direction, for a total of 14 lanes of travel. The speed limit on the bridge is 45 mph (70 km/h), though congestion often slows traffic, especially during the morning and evening rush hours. A path on each side of the bridge's upper level carries pedestrian and bicycle traffic. As of 2007, the George Washington Bridge has the greatest vehicular capacity of any bridge in the world, carrying approximately 106 million vehicles per year, making it the world's busiest motor vehicle bridge, according to the Port Authority of New York and New Jersey.