Fla. Stat. § 157.16

Whenever, heretofore or hereafter, a public drain or auxiliary thereto shall have been constructed by the board of county commissioners of any county under any law now in force, or that hereafter may be in force, the said board of county commissioners upon a petition of one-fourth of the owners of the property originally assessed for said drain, shall enlarge or deepen said drain or auxiliaries thereto and assess the cost of such enlargement or deepening of said drain or auxiliaries thereto against the lands benefited thereby.