16 Pa.C.S. § 16730: Widening, straightening, altering or changing course of unnavigable streams for protection of county bridges and highways.

If, in the construction, repair or maintenance of a county bridge or highway, it becomes necessary for the safety of the bridge or highway or economically advisable to widen, straighten, alter, protect or change the course of an unnavigable stream, it shall be lawful for the county to enter upon abutting or adjacent land, and to widen, straighten, alter, protect or change the course of the stream for these purposes, and, in connection with the entry, to take, injure and destroy any necessary land or property in the manner and subject to the restrictions and procedure provided by law.