I want to tell you a story. During the mid 19th century the city of Chicago was in crisis. The elevation of the growing metropolis was not much higher than the shorelines of Lake Michigan. There was no natural drainage in the city and culminated in six straight years of epidemics that lead to the cholera outbreak in 1854 (that killed six percent of the city’s population). Chicago was in crisis, and in 1856 came up with a plan…