C.R.S. § 38-5-108

Nothing in this article shall be construed to authorize any person, partnership, association, corporation, or city or town to erect any poles, construct any electric light power line, or pipeline, or extend any wires or lines along, through, in, upon, under, or over any streets or alleys of any city or incorporated town without first obtaining the consent of the municipal authorities having power to give the consent of such city or incorporated town.