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Story summary
- On March 14, 2026, Chicago celebrated dyeing Chicago River bright green for St. Patrick's Day, organized by Chicago Journeymen Plumbers Local 130.
- The event began at 10 a.m. and lasted about 45 minutes.
- The dye, originally used to detect leaks, transforms from orange to a vibrant green on contact with water.
- This year marks the 64th anniversary.
- The St. Patrick's Day Parade and other citywide events accompany the dyeing.
