Reply to "Lost Bogie Canyon, Colorado"

Not impossible; they would be able to determine a solution with engineering studies. However, a bridge will probably be ruled out due to expense (including the cost of re-routing traffic during construction). If it is determined that this flooding occurrence was a once in a hundred year event - or more (which it seems it was, but with global warming who knows what the future is)- then filling it in the way it was before is probably the solution that will be used. Just a useless guess by me, of course.