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Red and Purple Modernization Phase One Project

As CTA’s largest transit investment, the Red and Purple Modernization (RPM) Phase One Project modernizes our public transportation system to strengthen communities, serve riders and stimulate inclusive economic growth.

Learn more about RPM

Stay up to date on all the construction impacts.

Latest News

Evening and overnight work 4700-5822 N Winthrop 06/06/2023

Evening and overnight work behind CTA elevated structure from W Leland to W Ardmore with work hours 3:30pm-8am weekdays and Saturdays thru June 15 for rail grinding and testing. Download Document

Sidewalk impacts W Catalpa 06/01/2023

The sidewalk on the north side of W Catalpa between CTA tracks and the east alley will be closed 24/7 thru June 8 for Bryn Mawr temporary station construction and sidewalk restoration. Download Document

Updated dates: Parking lane, sidewalk impacts W Cornelia 05/31/2023

The parking lane and sidewalk on the south side of W Cornelia within the work zone will be closed continuously (24/7) until the work activity is completed with work hours 7am-7pm thru July 17. Download Document

Updated dates: Extended alley closure 3339-3351 N Sheffield 05/31/2023

The alley will be closed to through traffic at all times with work hours 7am-7pm weekdays with potential weekend work thru July 28 for track structure and foundation rehabilitation. Download Document

Updated dates: Traffic lane, parking lane, sidewalk impacts W Roscoe, N Sheffield 05/31/2023

Traffic lane, parking lane and sidewalk impacts at the northeast and southeast corners of W Roscoe and N Sheffield intersection with work hours 7am-7pm thru June 17 for track structure rehabilitation. Download Document

Updated dates, impacts: Overnight work 4700-5358 N Winthrop 05/23/2023

Overnight work at CTA elevated structure between W Leland and W Balmoral with work hours 10pm-7am thru June 3 for track destressing. Download Document

Updated dates: Traffic lane, sidewalk, alley impacts W Foster from CTA tracks to N Kenmore 05/18/2023

Traffic lane shifts, sidewalk and alley closures will occur during work hours 8am-5pm thru June 1 for ComEd maintenance for Argyle temporary station. Download Document

Short-term daily street closures, traffic lane and sidewalk impacts W Winona 05/08/2023

Short-term daily street closures and traffic lane and sidewalk impacts on W Winona between CTA tracks and N Winthrop with work hours 8:30am to 5:30pm weekdays and Saturdays thru June 24 for material deliveries. Download Document

Short-term daily street closures, traffic lane and sidewalk impacts W Ainslie 05/08/2023

Short-term daily street closures and traffic lane and sidewalk impacts on W Ainslie between CTA tracks and N Winthrop with work hours 7am-7pm weekdays and Saturdays thru June 24 for material deliveries. Download Document

Traffic lane shifts, parking lane and sidewalk impacts W Catalpa 05/01/2023

There will be traffic lane shifts with flagger assistance on W Catalpa; parking lane on both sides of the street will be closed; sidewalk on the north side of W Catalpa within the work zone will be closed; sidewalk on the south side of W Catalpa will remain open at all times thru May 31 for Bryn Mawr temporary station construction. Download Document

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Red and Purple Modernization Next Phases Study

As RPM Phase One continues construction, CTA is moving ahead on the multi-year process to initiate the next phase of the RPM program. The RPM Next Phases Planning Study is the first step of the planning process that will set goals and objectives, engage the public, identify potential projects, and evaluate alternatives and phasing.

About the RPM Next Phases Planning Study

Red Ahead wordmark

RPM is part of Red Ahead, a comprehensive initiative for maintaining, modernizing, and expanding Chicago’s most-traveled rail line.

Learn more about Red Ahead