The provisions of sections 13b-248, 13b-249, 13b-250, 13b-253, 13b-263, 13b-265, 13b-285 and 13b-289 shall be deemed a part of the charter of every company authorized to construct, own or operate any railroad within this state, and all powers and privileges conferred and all duties and obligations imposed upon such companies by said sections are conferred or imposed upon such companies in the same manner and to the same extent as if the provisions of said sections were parts of the charters of such companies.