§ 128. Inalienability of public property.

The ownership, right of control and use of the streets, highways, alleys, parks, public places and all other real property of the city is hereby declared to be inalienable by the city, except by ordinances passed by vote of a majority of the council as hereinafter provided; and no franchise or easement involving the right to use the same, either along, across, over or under the same, shall ever be valid, unless expressly granted and exercised in compliance with the terms hereof, and of the ordinances granting such use. No act or omission of the city, its council, officers or agents shall be construed to confer or extend by estoppel or indirection, any right, franchise or easement not expressly granted by ordinance.