The Bridge Project, Detroit Superior bridge, Cleveland, Sept. 2009. Once a year the old trolley level of the bridge (below street level) is opened to visitors. An amazing space with spectacular views in the middle and crusty caves at the ends. A parade of musicians plays their way across the bridge. And yes, the surface is open grate with a clear view to the river way below.

The Bridge Project, Detroit Superior bridge, Cleveland, Sept. 2009. Once a year the old trolley level of the bridge (below street level) is opened to visitors. An amazing space with spectacular views in the middle and crusty caves at the ends. A parade of musicians plays their way across the bridge. And yes, the surface is open grate with a clear view to the river way below.