Yes these levels have happened before...yes it has flooded before.
But there's a reason that these are called 500 year or 100 year floods...because statistically that's how often they have historically happened. Until recently. Now they're occuring every decade.
Just look at that table you provided...Do you notice a trend since the 90s?????? You're making straw man arguments...the issue isn't that this
never happens...the issue is, it's happening much more frequently.
1868 - 24 years til next
1892 - 73 years til next
1965 - 28 years til next
1993 - 4 years
1997 - 4 years
2001 - 7 years
2008 - 3 years
2011 - 3 years
2014 - 5 years
2019
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