Such telecommunications company may appropriate so much land as may be actually necessary for its telecommunications line, with the right to enter upon lands immediately adjacent thereto, for the purpose of constructing, maintaining and operating its line and making all necessary repair. Such telecommunications company may also, for the purpose aforesaid, enter upon and appropriate such portion of the right-of-way of any railroad company as may be necessary for the construction, maintenance and operation of its telecommunications line: PROVIDED, That such appropriation shall not obstruct such railroad of the travel thereupon, nor interfere with the operation of such railroad.