this orange powder turns a brilliant green. The exact formula remains a closely guarded secret, adding an air of mystery to the annual event. The river transformation occurs on the Saturday before St.

While the water in the river will retain a green color for several days, Choose Chicago notes "the brilliant green color only lasts a few hours." Feeling out of the loop? We'll catch you up on the ...

a dye plumbers used to detect leaks in the sewer system along the Chicago River turned the water green. The business manager of Chicago Plumbers Local 130 then got an idea, called the mayor and ...

CHICAGO — Thousands flooded the streets of downtown on Saturday morning to watch the Chicago River turn emerald green in celebration of St. Patrick’s Day 2025. The annual tradition has been ...

Every year on the Saturday before St. Patrick's Day, the Chicago River is dyed green. The best place to watch the Chicago River turn green is along Upper Wacker Drive between State Street and Columbus ...

CHICAGO — The Chicago River is once again glowing kelly green as the city opens its annual St. Patrick's Day celebrations. Thousands lined the river and packed bridges Saturday and erupted in ...

Pat Nabong/Sun-Times After the Chicago Plumbers Local 130 turned the Chicago River green, thousands flocked to Columbus Drive for the annual downtown St. Patrick’s Day Parade. Regulars of the ...

Every year as part of the city’s St. Patrick’s Day celebrations, thousands of onlookers clad in green cheer on a boat crew sprinkling orange powder into the Chicago River to turn it a festive ...