(a) A railroad company may raise or lower any county road or other public highway for the purpose of having its railroad pass over or under the road or highway. Repair or reconstruction of roads or highways shall be expeditiously completed.
(b) While engaged in raising or lowering any county road or other public highway or in making any other alteration which may obstruct the public way, a railroad company shall provide and maintain suitable temporary ways to enable travelers to avoid or pass obstructions.