The bridge that crosses the WillametteRiver to provide (0,0) in PortlandOregon's coordinate system (that means Burnside divides the North from the South).
here's a picture of the brige from the west, courtesy Andrew Hall's excellent "Bridges of Portland" site:
(c)2001 Andrew Hall, PortlandBridges.com (thanks for letting us use it, Andrew)
here's a picture of the skate park underneath, from a skate park page:
