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fDesc[0] = "HYRISK implements a rational and practical strategy for assessing the relative<br /> risk of scour failure for bridges with foundations subject to scour. The relative<br /> risk of scour failure is calculated as the product of the cost associated with<br /> failure and the probability of failure. The method is based on data contained in<br /> the NBI database. The following key parameters extracted from NBI data are<br /> used in the method:<br /> - Bypass length (NBI Item 19).<br /> - Functional classification (NBI Item 26).<br /> - Year built (NBI Item 27)<br /> - Average daily traffic (ADT) (NBI Item 29).<br /> - Type of service (NBI Item 42).<br /> - Type of span (NBI Item 43).<br /> - Structure Length (NBI Item 49).<br /> - Deck width (NBI Item 52).<br /> - Waterway adequacy (NBI Item 71)<br /> - Average daily truck traffic (NBI Item 109).<br /> - Scour critical bridges (NBI Item 113).";

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