All grade crossings, under-crossings and over-crossings on the line of every logging and other industrial railway as herein defined shall be inspected annually by the commission as to condition, also maintenance, and safety in the interest of the public, for the purpose that the commission may, if it shall deem it necessary, require such improvements, changes and repairs as in its judgment are proper to the end that adequate safety shall be provided for the public.
RCW 81.54.020