(a) Enters or remains upon a bridge or approach to a bridge beyond the bridge signal, gate or barricade after a bridge operation signal has been given.
(b) Passes through, around, over or under any crossing gate or barrier at a bridge or railroad grade crossing while the gate or barrier is closed or being opened or closed.
(2) The offense described in this section, pedestrian failure to obey bridge or railroad signal, is a Class D traffic violation. [1983 c.338 §554; 1995 c.383 §83]