Does anyone know what happened at the top of the dam: http://imgur.com/a/aT4UE http://imgur.com/a/aT4UE Looks like the side of the spillway or roadway was dama

Does anyone know what happened at the top of the dam: http://imgur.com/a/aT4UE http://imgur.com/a/aT4UE Looks like the side of the spillway or roadway was damaged, since the concrete appears to be broken, although the spillway wall itself might be ok below that vantage point. It's just really hard to tell from that angle, but all of the official drone footage/photos from DWR don't include that area of the spillway, which is curious.