Any such work shall be done in accordance with plans and specifications approved by the city engineer. Before any such work is authorized, the person doing such work shall deposit with the city of Aberdeen a bond in such amount deemed sufficient by the city engineer to guarantee the faithful performance of said work in accordance with such plans and specifications and within the time specified in such permit. The amount set for the bond may be appealed to the building code commission, which, after a hearing, shall have the power to affirm or modify the decision of the city engineer.