FPAs normally require permits for any work in the mapped floodplain in order to prevent any improper development and to track all activity and changes which will affect the floodplain. TxDOT recognizes that activities such as bridge and culvert construction or roadway overlays can have an effect on the floodplain, and that the FPA needs the information. Since TxDOT cannot apply for a permit, as discussed in “TxDOT and Local Floodplain Regulations,” TxDOT requires the designing office to send a copy of the plan set along with any and all supporting hydrologic and hydraulic computations and program files to the local FPA. (See FPA Notification Details.) The designer should place a note on the hydrologic plan sheet stating, “H&H files were sent to the local Floodplain Administrator ________name_________ on ___date____.” The date is the date the documents, plans, and files are sent to the local FPA.