This article shall be applicable to all counties electing to come under the terms and provisions of Article 3 of this chapter and in which a flood control project has been authorized or may be authorized by the federal government which either directly or indirectly involves, or has the result of creating, a potential industrial area or the protection of such an area. This article is supplementary to said Article 3 of this chapter, and all other laws of this state concerning ports and harbors and shall not be construed by way of limitation on any of the powers or authority heretofore granted, but the authority conferred herein is in addition and cumulative thereto.
Miss. Code § 59-7-201