sorry, dead weight is much different than live weight. the bridge would have been designed to hold that much dead weight. ROP and if I’m wrong...
A steel member in a structure is typically designed to accommodate 40% more than its anticipated "dead" load and 70% more than its anticipated "live" load.
Alberta's Child, P.E.
“sorry, dead weight is much different than live weight. the bridge would have been designed to hold that much dead weight. ROP and if I’m wrong...”
Sure it was. Forty years ago. I said weight plus accumulated metal fatigue and corrosion.