as the Chicago River will be dyed a brilliant shade of green as part of the city's St. Patrick's Day festivities. The event will kick off a day of celebration in the city, which will also include ...

The iconic green dye that transforms the Chicago River remains visible well after the event has ended. Watch the river live.

The Chicago River was running bright green on Saturday, as it does every St. Patrick's Day weekend. Thankfully, the high ...

Saturday, March 16, the Chicago River will magically turn a bright shade of green in honor of St. Patrick's Day. The tradition, put on by the Chicago Plumbers Union and dates back nearly 70 years ...

As is tradition, the Chicago River will be turned green for St. Patrick's Day on Saturday, March 15. Crews start the process in the morning, working from Columbus Drive to Orleans Street ...

I. I. The Chicago River is once again glowing kelly green after the city opened its annual St. Patrick's Day celebrations.Video above: Chicago River turns green for St. Patrick's DayThousands ...

The practice of dyeing the Chicago River green began in 1962, but its roots lie in a less festive endeavor. In the 1960s, city workers used green dye to trace illegal sewage discharges into the river.

In 1962, Chicago city workers dumped 100 pounds of dye into the river flowing through downtown Chicago. It left the river emerald green for an entire week and kick-started an annual tradition.

AP photographer Erin Hooley has covered the annual dyeing green of the Chicago River in celebration of St. Patrick’s Day for ...

The Chicago River is once again glowing kelly green as the city opens its annual St. Patrick’s Day celebrations CHICAGO -- The Chicago River is once again glowing kelly green as the city opens its ...