80% of all disasters declared in the United States are caused by floods. To relate it better to home and business owners, many mortgages have a repayment period of 30 years. Buildings in areas that are in or are very close to a 100-year flood plain have a 26% chance of experiencing a flood during the life of the loan. However, during that same period, there is only a 4% chance of a fire.
In the past 20 years, most of the areas in the City affected by flooding are not in designated floodplain areas.
Compared Odds of Flooding
|Odds of Occurring
|Structure in the 100-year floodplain being flooded in any given year
|1 in 100
|Matching 1 number plus the Powerball in the Powerball lottery
|1 in 124
|Structure in the 500-year floodplain being flooded in any given year
|1 in 500
|Annual chance of being killed in a car accident if you drive 10,000 miles a year
|1 in 4,000
|Being struck by lightning
|1 in 600,000
|Winning the Powerball lottery jackpot (matching 5 numbers plus the Powerball)
|1 in 120,526,770