The George Washington Memorial Bridge, also known as the Aurora bridge, carries State Route 99 over the west end of Seattle's Lake Union. 2,945 ft (898 m) long, 70 ft (21 m) wide, and 167 ft (51 m) above the water, the bridge was opened to traffic on February 22, 1932. In 1982 it was listed on the National Register of Historic Places. The Aurora bridge is a popular location for suicide jumpers and numerous reports have used the bridge as a case study in fields ranging from suicide prevention to the effects of prehospital care on trauma victims.