Other inherently permanent structures.
(C) Other inherently permanent structures. Inherently permanent structures under paragraph (a)(2)(ii) of this section include the following distinct assets, if permanently affixed: In-ground swimming pools; roads; bridges; tunnels; paved parking areas, parking facilities, and other pavements; special foundations; stationary wharves and docks; fences; inherently permanent advertising displays for which an election under section 1033(g)(3) is in effect; inherently permanent outdoor lighting facilities; railroad tracks and signals; telephone poles; power generation and transmission facilities; permanently installed telecommunications cables; microwave transmission, cell, broadcasting, and electric transmission towers; oil and gas pipelines; offshore platforms, derricks, oil and gas storage tanks; and grain storage bins and silos. Affixation to real property may be accomplished by weight alone. If property is not listed as an inherently permanent structure in paragraph (a)(2)(ii)(B) or (C) of this section, the determination of whether the property is an inherently permanent structure under paragraph (a)(2)(ii) of this section is based on the following factors -