In what the civil engineers gtroup termed "the most significant change" to the 7-22 standard's flood load provisions since the inception of ASCE 7. the new supplement ties flood hazard mitigation to a
structure’s risk level, and sets the hazard area for most risk
categories to the 500-year floodplain for determining flood loads.
Marc L. Levitan recalls being at first enthralled by the sound and light show of the thunderstorms and then traumatized by the flooding in his neighborhood in Bucks County, Pa., during 1972’s Hurricane Agnes. He was 10.
Code-based earthquake engineering is on the verge of getting simpler, thanks to the National Earthquake Hazards Reduction Program’s recommendation to replace the traditional seismic hazards maps with an improved seismic hazards database.