Hi Mark, I too appreciate your posting about the unfinished bridge in Pittsburgh, and Thanks especially for the picture of it.
Back in the mid-60's, on a visit home from college, in Ohio, I deliberately ventured out onto that unfinished span riding my little Honda50 "motorcycle", knowing the bridge was unfinished and would end in midair, not reaching the other side. I eased past the barriers and went, cautiously, right up to the edge, and looked down into the very dark, very deep waters. It was nightfall. Then, I zipped theheck out of there. But I can still see that bridge edge and the dark waters below. It was a remarkable feeling, never repeated again. But at least I got to see it close-up.
FrankM (from Duquesne)