Part 5/10:
By the late 19th century, the canal bore the unfortunate nickname “black mayonnaise,” a reference to its foul, polluted waters that were described as purple-red in color and highly viscous. Multiple initiatives in the early 20th century aimed to rectify this, including the construction of a sewage system. Unfortunately, these efforts fell short as urban expansion continued, resulting in ongoing contamination and deterioration of the canal's health.