Section 13

Whenever it is necessary so to do for the purpose of maintaining, repairing or upgrading any licensed installation or any part thereof, the licensee, or any person authorized by him in that behalf, may at all reasonable times enter upon any land on, under or over which supply lines have been laid, placed or carried, or upon which posts or other equipment have been erected, and may carry out all necessary repairs, and may, in the course thereof, fell or lop trees, remove vegetation and do all other things necessary to the said purpose, causing as little damage as possible and paying full compensation in accordance with section 16 to all persons interested for any damage that may be caused thereby for which compensation has not already been assessed under section 11.