🕑 Reading time: 1 minuteDesign and construction requirements such as elevation of structure, foundations, anchorage and connections, use of fill and other factors for flood resistant building structures are discussed.
Fig.: Foundation of Flood Resistant Building Structure
Design and Construction of Flood Prone Building Structures
Elevation of StructureSignificant flood resistant improvement can be obtained if the structure has the lowest floors elevated to design flood elevation. Design flood elevation includes wave height relative to a datum determined based on the flood hazard map of the area.
Fig.: Specified Flood DatumParking garages, buildings access, and storages are permitted to be constructed below design flood elevation if the enclosed area reach the conditions of enclosed areas applicable to specific flood hazard area. Lastly, nonresidential structures and nonresidential portion of mixed use structure are permitted to have lowest floor below design flood elevation provided that they meet requirements of dry flood proofing. The dry flood proofing is a combination of measured that makes structures waterproofing.
Fig.: Structure Elevated to be Flood Resistant