Here is something that happened in April 1978:
A concrete cooling tower under construction at a power station at Willow Island, West Virginia, collapses. All of the 51 construction workers on the scaffolding fell to their deaths. OSHA and the contractor agreed to settle the case for $85,500 (or about $1,700 per dead worker); no criminal charges were ever filed. The final OSHA rule on concrete and masonry construction was not issued for another 10 years and improved scaffolding rules, not until 1990.
I suppose some other more recent stuff happened too.