You may want to rethink the long term flood risks for your data center.
FEMA has a Climate Change report where flooding is discussed.
Download and read the study, "The Impact of Climate Change and Population Growth on the National Flood Insurance Program"
The national average increase in SFHA by the year 2100 may approximate 40% for riverine areas and coastal areas if shoreline recession is assumed; and 45% for riverine areas and coastal areas if fixed coastlines are assumed.
Fast Company reports on the same study and says the risk is 45%, choosing to emphasize the change if fixed coastlines are assumed. The number would be 40% if shoreline recession is assumed.
Our Flooded Future, According To FEMA