A bridge has an expected life of 25 years and is designed for a flood magnitude of return period 100 years. What is the risk of this hydrologic design?
ANSWER= [C] 1 – (99/100)25
Explanation for Detail Understanding
given data
Design life (n) = 25 years
Return Period (T) = 100 years
Risk = 1 – (qn) = 1 – ( 1 – p )n = 1 – ( 1 – (1/T))n
Risk = 1 – ( 1 – (1/100))25
Risk = 1 – (99/100)25
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