What do the recent floods in Maryland say about today's stormwater systems?
Answer: They need to be modernized.
According to analysis by one Forbes contributor, while the recent flooding in Maryland — which brought 5.52 inches of rain in 90 minutes, killed two people and destroyed five buildings — was statistically a "1,000-year event," the overall trend this century is toward more rainfall in urban locations. Many modern studies, he claims, recommend updated models in the design and planning of modern drainage systems, because the old ones are being overwhelmed by the new norm in rainfall.
