According to the story, the dye used to detect leaks in the sewer system along the Chicago River turned the water green, and the idea was born to dye the river green in honor of St. Patrick’s Day.

With more extreme weather expected moving forward, and the health of the Chicago River vital, Happel said, "if a system is super species-poor, we might see problematic events. Like maybe we will have ...

The Chicago River was running bright green on Saturday, as it does every St. Patrick's Day weekend. Thankfully, the high winds in the forecast died down as the dye went into the water ahead of the ...

Chicago native Joey Santore captured a video ... and that's something that I think has been really lacking in our river system." Snapping turtles typically range in size from 8 to 14 inches ...

Friends of the Chicago River annually question why the river is ... process under the National Pollutant Discharge Elimination System permit program, which Friends has advocated for in accordance ...

St. Patrick's Day brings green decorations, outfits and even beer, so it's only fitting that the nation's county with the most Irish people take it a step further and dye a waterway green.

This year marks the 70th green river dyeing! 💚 The Chicago Plumbers Union, Chicago Journeymen Plumbers Local 130, the Chicago River dyeing masters who handle the world-renowned St. Patrick’s ...

The Chicago River is dyed green as part of annual St. Patrick's Day festivities Saturday, March 15, 2025, in Chicago. (AP Photo/Erin Hooley)(AP/Erin Hooley) CHICAGO (AP) — The Chicago River is ...