Attention CTA riders: Four busy train lines in the Loop and downtown will be shut down this weekend. ⁠ ⁠ According to a release, the CTA will be replacing "critical track switching equipment at the Tower 18 junction" at the intersection of Lake and Wells, which requires a temporarily suspension of Loop elevated trains on the Brown, Green, Orange and Pink lines. ⁠ ⁠ Tap the 🔗 in our bio to learn more ⁠ ⁠ #cta #ltrain #chicagotransit #chicagoweekend