Table. Present value of estimated costs
& negative effects
AlternativesState of natureProbabilitySteel
alloy Trestle bridge Bridge w/risk
ProbabilitySteel
alloy Trestle bridge Bridge w/risk0 storm0.60$191,524 $182,658$109,595
0.60$191,524 $182,658$109,595 1 storm0.31$191,524 $222,268 $68,903
0.31$191,524 $222,268 $68,9032 storms0.08$191,524 $222,268$17,781
0.08$191,524 $222,268$17,7813 storms0.01$191,524 $282,072 $2,821
0.01$191,524 $282,072 $2,821Expected value
(costs +negative effects
$191,524
$199,100
$199,100