Mill district neighborhood is bounded to the east by a bridge with how many lanes ?
Mill District, Minneapolis:  Its approximate boundaries are the Mississippi River to the north, the I-35W Mississippi River bridge to the east, Washington Avenue to the south, and 5th Avenue to the west. I-35W Mississippi River bridge: The I-35W Mississippi River bridge (officially known as Bridge 9340) was an eight-lane, steel truss arch bridge that carried Interstate 35W across the Saint Anthony Falls of the Mississippi River in Minneapolis, Minnesota, United States.
i don't know