The city may, from time to time, proceed to make improvements within areas of the city, make assessments therefor, and issue interim warrants and bonds, pursuant to the Utah municipal improvement district act (section 10-16-1 et seq., Utah Code Annotated, 1953), or its successor, the Utah underground conversion of utilities law (section 54-8-1 et seq., Utah Code Annotated, 1953), or its successor, and other appropriate provisions of state or local law. (Prior code § 39-1-1)