Demolition of 12 story building and leaving below grade garage intact. The scope of work for this job called for keeping the existing below grade parking garage intact – so we elected to demolish the building, one floor at a time, using Brokk remote controlled demolition machines. This job involved de-tensioning post-tension cables in transfer girders at second floor level – in a sequence determined by our structural engineer. Additionally, we performed asbestos abatement. This job was contracted with Clark Construction.