Chicago River Dyeing Schedule 2025 Pdf. Patrick's day celebrations for decades, with this year. The chicago plumbers union, chicago journeymen plumbers local 130, says its been dyeing the chicago river green in honor of the city's st.

Patrick’s day celebrations for decades, with this year. The chicago plumbers union, chicago journeymen plumbers local 130, says its been dyeing the chicago river green in honor of the city’s st.