Chicago River Goes Green on St. Patrick's Day

Due to Chicago's thriving Irish-American community, tourists always enjoy spending St. Patrick's Day in a city that celebrates the holiday with bagpipes, stepdancing and the crowning of "Chicago's Fairest Colleen." However, the most compelling reason to come to Chicago and stay at the Radisson Chicago Hotel and Suites on March 17 is to see the Chicago River turn Emerald Green due to the magic of a closely guarded secret forumula.

On March 16, come to the Radisson Chicago Hotel and Suites and you can get an early start at celebrating the holiday at nearby pubs restaurants and still get up in time to witness the transformation of the Chicago River. At 10:45 in the morning on March 17, crowds will gather at the upper bridges at Michigan Avenue or Columbus Drive and watch as the River Dyeing Crew unleashes an orange dye into the water which turns the water bright green.

Legend has at that this tradition began over 40 years ago when Stephen Bailey, Business Manager of the Chicago Journeymen Plumbers Local Union, was making plans for a St. Patrick’s Day celebration and noticed a plumber whose clothing was splotched with fluorescent green spots. Upon hearing that the plumber had been using the dye to detect waste leaks in the Chicago River, Bailey had the idea of turning the whole river green for St. Patrick’s Day.

The first time that the transformation took place, in 1962, over 100 pounds of were used and the Chicago River stayed green for a week. Over the years the formula was down and it was found that 25 pounds of dye would keep the Chicago River for one day.

In 1966, the chemical dye used to color the waters was changed to a vegetable based dye at the request of environmenalits. About 40 pounds of this dye is used to keep the river green for the day.

Chicago claims to be the only city that has the capability of changing its waters green. After you've witnessed this St. Patrick's Day miracle, watch the parade at noon, then come back to the Chicago Hotel and Suites and have some 'bangers in blankets' or 'Guinness Irish Stew' at Elephant and Castle Pub, located in the hotel.