The root of it all? Quality control issues with the concrete mix. According to a recent story by Engineering News Record, the concrete mix that was to be used did not meet the 100-year standard that was required by the terms of the job. Additionally, workers are now striking due to a concern about safety issues on the job site. The end cost? Workers whose safety is compromised, a project that is late and a budget that is blown. All of which, with better planning and better processes, could have more than likely been prevented.