The Old Main was dedicated February 4, 1898 and was the first building in Tempe, Arizona to be wired for electric lighting. President Teddy Roosevelt dedicated the Roosevelt Dam from the front stairway in 1911. Arizona State University is one of the largest state universities in the United States. Located in Tempe, Arizona, just east of Phoenix, the school has been ranked among the top universities of the world. The University Bridge creates a pedestrian overpass connecting students from the north campus residence halls, athletic facilities, and parking lots to the central campus area. The bridge also houses the power lines connecting the north side of campus to the central campus buildings.