Section 346.10 - When passing at a railroad crossing, intersection, bridge, viaduct or tunnel prohibited(1) The operator of a vehicle shall not overtake and pass any other vehicle proceeding in the same direction when approaching within 100 feet of or traversing any railroad crossing unless the roadway is of sufficient width for 2 or more lines of vehicles to lawfully proceed simultaneously in the direction in which such vehicle is proceeding or unless permitted or directed by a traffic officer to pass at such crossing.(2) Subject to the exception stated in sub. (3), the operator of a vehicle shall not overtake and pass any other vehicle proceeding in the same direction when approaching within 100 feet of or traversing any intersection unless the roadway is marked or posted for 2 or more lines of vehicles moving simultaneously in the direction in which such vehicle is proceeding or unless permitted or directed by a traffic officer to pass at such intersection.(3) Outside of a business or residence district, the restrictions which sub. (2) places upon passing at an intersection apply only if such intersection is designated in the direction of travel by a traffic control signal, stop sign, yield sign or sign that warns traffic of existing or potentially hazardous conditions on or adjacent to the roadway.(4) The operator of a vehicle shall not overtake and pass any other vehicle proceeding in the same direction when the view is obstructed upon approaching within 100 feet of any bridge, viaduct or tunnel unless the roadway is of sufficient width for 2 or more lines of vehicles to lawfully proceed simultaneously in the direction in which such vehicle is proceeding or unless permitted or directed by a traffic officer to so overtake and pass.