Amendments are proposed to clarify what activities involving replacement, modification or maintenance of roadway bridges are appropriate for a noticed general permit. Rule 40D-400.443, F.A.C., is amended to provide that bridge replacements or modifications that involve changes in the configuration of the bridge or fill areas due to changes in materials, construction techniques or upgrades to meet current construction codes or safety standards will be authorized as noticed general permits. Rule 40D-400.447, F.A.C., amendments clarify that, for projects involving the extension of culverted crossings to accommodate roadway widening, the area from which material is excavated or to which material is deposited shall not exceed a total of 0.25 acre at any one culverted crossing.