Nothing contained in this article shall be construed as a restriction or limitation upon any authority which any public corporation or municipality now existing or hereafter formed may have in the absence thereof, but this article shall be construed to be supplemental and additional to authority conferred by other laws. No proceedings, notices, or approval shall be required, except as expressly prescribed in this article, any other law to the contrary notwithstanding.
Ala. Code § 11-50-174 (1975)