Evaluating next‐generation intensity–duration–frequency curves for design flood estimates in the snow‐dominated western United States

Civil infrastructure such as culverts and bridges are commonly designed using precipitation‐based intensity–duration–frequency (PREC‐IDF) curves, which assume that the occurrence of precipitation is in the form of rainfall and immediately available for the rainfall‐runoff process. In snow‐dominated regions, where most winter precipitation occurs as snow that melts during spring to early summer, the use of standard PREC‐IDF curves may lead to...