Chicago, IL -- The Chicago River is a glowing green as the city celebrates St. Patrick's Day.
The Shannon Rovers played on the bank of the Chicago River as the Plumbers Union Local 130 carries out a more than 50-year-old tradition of dyeing the river.
Generations of the Butler and Roan families are behind this tradition. Robert Roan was on the boat spreading the dye that makes the river a luminescent emerald green.
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