The dirt you see is the ground under the bridge where it pulled away from the road surface. The bridge itself is concrete on steel frame. The fact that the decking held together probably saved lives. It looks like the structure under one end failed and the deck dropped in one piece to the ravine floor. If the deck had split mid-span this could have been worse.
Aging infrastructure and a rapidly growing population is a bad mix
Scary and a close call! I haven't been to Pittsburgh since 1970. Can't remember if I crossed that bridge.I live near it too. My street is closed and they were evacuating homes because of a natural gas leak caused by the collapse. No one has knocked on my door, so I think all is good now. I didn't hear the collapse, but I was awoken this morning by the sound of sirens.
Friends came to my house last night and drove that bridge. I'm grateful no one was killed, but it seems like it'll be a while before that road is reopened.
I assumed he was talking about how fat everyone has gotten, these poor bridges have to bear the brunt of our rapidly increasing waistlines.I assume population growth isn't specifically directed at Pittsburgh.