(1) Every railroad corporation in this state shall cause boards to be placed, well-supported by posts or otherwise, and constantly maintained across each public road or street where the public road or street is crossed by the railroad on the same level.
(2) The boards shall be elevated so as not to obstruct travel and to be easily seen by travelers.
(3) On each side of the boards shall be printed, in capital letters of at least the size of nine inches (9") each, the words, “RAILROAD CROSSING”.
(4) This section shall not apply to streets in cities or villages unless the corporation is required to put up the boards by the officers having charge of the streets.