Based on previously conducted project planning and engineering work, the CTA selected a Preferred Alignment in 2018. The Preferred Alignment is a combination of the previously presented Union Pacific Railroad (UPRR) East and West options.
The Preferred Alignment will run south along I-94 from the 95th/Dan Ryan station, then curve west along the north side of I-57 (within the I-57 right-of-way) on an elevated structure for nearly a ½ mile until reaching and crossing over to the west side of the UPRR corridor in the vicinity of Eggleston Avenue. The alignment will turn south to follow the UPRR corridor on the elevated structure along the west side of the UPRR to 107th Place. At 107th Place the elevated structure will cross over to the east side of the UPRR corridor. The Preferred Alignment will continue along the east side of the UPRR corridor south and southeast to near 119th Street. South of this point, the Preferred Alignment will descend to at-grade while continuing southeast. The alignment will continue south, going under 130th Street to the terminus (end) of the RLE Project south of 130th Street. See the preferred alignment map.
The Preferred Alignment captures the benefits, minimizes the impacts of either option and incorporates the public and agency feedback received on the Draft Environmental Impact Statement (EIS). The Preferred Alignment will have fewer impacts than either the East or West options. It will affect fewer residences than the East Option, and fewer businesses and jobs than the West Option. Noise and vibration impacts will not be greater than those anticipated under either the East or West Option. The Preferred Alignment is evaluated in the Final EIS.