This chapter illustrates how HEC-FIA summarizes hydraulic inputs for computations performed at point locations (e.g., structures) in the flooded area. HEC-FIA uses geo-referenced structure databases, hydraulic inputs, and terrain data to determine the hydraulic characteristics (e.g., depth, arrival time, etc.) at each point location or structure. The following sections detail the inputs required for the computations, the computational procedures, and the outputs produced from the computations.