Emergency crews are pictured Nov. 16 at Sallie Barber Road near Breckenridge, where a trench collapse killed 20-year-old Marlon Diaz and partially buried another individual who was rescued.

“Probably 80 percent of all projects can be handled with trench boxes,” says Ross. “This is usually the fastest method of placing pipe. When a box can’t be used, then you choose the best alternative, ...