As used in this chapter, the following terms shall have the meanings indicated:
Shall be deemed to refer to any one of the following: the laying out, opening, constructing, extending, widening, altering, straightening, altering of grade, grading, regrading, paving, surfacing, narrowing and discontinuing of public streets, the construction and altering of drains, gutters, crosswalks, sidewalks and curbs in the public streets, laying out, opening, enlarging, improving and ornamenting public squares and parks and acquiring the land necessary therefor; the constructing, reconstructing, extension and alteration of public sewers and drains within or without the limits of the City; the construction of bridges, arches and culverts and the extension of mains and pipes and appurtenances for the supplying of water for public purposes and for private consumption; the construction, reconstruction, extension and enlargement of off-street parking spaces, lots, garages or facilities, the construction of buildings, structures, garages, spaces or facilities for off-street parking purposes for the relief of traffic congestion and the acquisition of real property or any interest therein necessary for or incidental to the construction or operation of parking garages, parking spaces or parking facilities for such purpose; the acquisition of real property, rights-of-way or any interest therein which may be required or necessary in connection with the construction of state arterial highways within the City limits as well as the cost of preparing any such real property so acquired for such public use.