Section 15-6-102 - General grant of authority; nonapplicability of other provisions; restriction; nonexclusivity(a) Any city or town may provide for the making and maintenance of local improvements and levy and collect special assessments on the property specially benefited to pay all or part of the cost of the improvement. This chapter, without reference to other statutes, unless otherwise expressly provided, constitutes the full authority for the exercise of powers herein granted. No other law relating to any city or town, with regard to like matters, that provides for a petition or an election, requires an approval, or in any way impedes or restricts the doing of things authorized to be done by this chapter, shall be construed as applying to any proceedings or acts done pursuant to this chapter. No one other than the governing body of the municipality may fix, prescribe, modify, supervise or regulate the levy or collection of special assessments or taxes authorized by this chapter, except as expressly provided or necessarily implied, nor supervise or regulate the establishment or modification of grades and the acquisition of any improvement authorized.(b) It is intended that this chapter provide a separate but not exclusive method of accomplishing its objectives, and it shall not be construed as repealing, amending or changing any other law.