Anyone who has ever been on a construction site knows that surprises, complications and unforeseen circumstances are a nearly unavoidable reality, with even the most skilled and experienced engineering and construction professionals susceptible to them.
The question is how do you, the contractor, handle them? For some project managers for contractors, on-site hiccups — and the cost and time overruns they bring about — are just a cost of doing business. You deal with them and move on.