Structural Collapse RSVP Required to: [email protected] *A few things to review: Estimating concrete weight  https://youtu.be/qdpfcN0I27Q?si=cE70ArJHGVcnB_aX Paratech Virtual Workshop: Heavy Rigging & Winching   https://www.youtube.com/live/cUF6YAujy9M?si=WTFFmkJbIMrgJFGO