Whenever viewers are appointed to vacate any public road, street, or highway in this Commonwealth, and the vacation of the same takes no land from the owner or owners of land abutting thereon, if, in the opinion of the viewers so appointed the vacation of said road, street, or highway damages the property of the abutting owner, they may award damages to such owner or owners as though land had been actually taken, and such damages shall be paid as is now provided by existing laws where land is actually taken for the opening, vacating, and laying out of roads, streets, and highways.