In case it is necessary to pass any dredge boat or other equipment through a bridge or grade of any railroad company or other corporation, county, township, or municipality, the board of directors shall give thirty (30) days' notice to the owner of said bridge or grade that the same shall be removed temporarily to allow the passage of such equipment or that an agreement be immediately entered into in regard thereto. The owner of said bridge or grade shall keep an itemized account of the cost of the removal and if necessary, of the replacing of said bridge or grade, and said actual cost shall be paid by the district. In case the owner of said bridge or grade shall refuse to provide for the passage of said equipment, the board of directors may remove such bridge or grade at its own expense, interrupting traffic in the least degree consistent with good work and without delay or unnecessary damage. In case they shall be prevented from doing so, the owner of said bridge or grade shall be liable for all damage caused by the resulting delay.