
        Dye colors the Chicago River green ahead of the St. Patrick's Day parade in Chicago on Saturday, March 15, 2014. The annual dying has been done since 1962. (AP Photo/Paul Beaty)
    

The Chicago River's hue has morphed to an emerald green, as the city kicks of St. Patrick's Day celebrations.
Photographs posted online show the city's iconic body of water glowing emerald green after the Chicago Journeymen Plumbers Union Local 130 dropped dye into the river.
The tradition has taken place since 1962.
Green Chicago river for St. Patricks day #Beautiful pic.twitter.com/kjVLoyjhfI
— Christopher Reid (@CReid1989) March 15, 2014
Chicago River goes green for St. Patrick's Day https://t.co/tttx6LmXVk pic.twitter.com/6yB6M4koFe
— NBC News (@NBCNews) March 15, 2014Chicago goes green #Ireland #PaddysDay pic.twitter.com/QmzlqC16lt
— Deirdre Moran (@DeeMorany) March 16, 2014For you @BallyfinDemesne and @SheenFalls - boats turn the Chicago River green. Happy #StPatricksDay #Ireland pic.twitter.com/8w6Ea1CFh1
— Janine Cifelli (@JanineCifelli) March 16, 2014—
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