The Chicago River turns green for St. Patrick's Day. This time-lapse video shows the handiwork of the Chicago Plumbers Union Local 130, who've been dyeing the river for 55 years. The dye typically lasts for 24 to 48 hours. https://t.co/8n4hAt6fq4 Video: Lindsey Engelbert https://t.co/vYtdIQXqEu

The Chicago River turns green for St. Patrick's Day. This time-lapse video shows the handiwork of the Chicago Plumbers Union Local 130, who've been dyeing the river for 55 years. The dye typically lasts for 24 to 48 hours. https://t.co/8n4hAt6fq4 Video: Lindsey Engelbert pic.twitter.com/vYtdIQXqEu

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March 18, 2018 at 08:00AM