RPM construction has begun

RPM Phase One Project overview: 2021

Better CTA service is coming! We've broken ground on the transformational Red and Purple Modernization (RPM) Phase One Project, with work beginning on a key component of RPM, the Red-Purple Bypass north of Belmont station. The bypass will allow for more trains, less congestion and a less cramped commute to work. We have also begun preparatory work for the Lawrence to Bryn Mawr Modernization project, another major part of RPM Phase One. 

The modernization project has many steps, and it is important to know when and how you or your business may be affected.  Sign up for construction impact alerts in your community here. Click here for Construction Activity Notices related to this project.

Red-Purple Bypass, four-week project lookahead, April 23, 2021

Lawrence to Bryn Mawr, four-week project lookahead, April 29, 2021

Red-Purple Bypass

We broke ground on the Red-Purple Bypass bridge in October 2019. The bypass will be completed in 2021 and will carry Kimball-bound Brown Line trains over Red and Purple Line tracks north of Belmont, easing train congestion and improving service for our customers.

After we finish the bypass, we will begin rebuilding the century-old Red and Purple Line tracks underneath the bypass, between Belmont and between Cornelia and Newport. The new Purple and Red Line tracks are expected be completed by the end of 2024, providing a smoother and more comfortable ride for our customers. See the latest construction activity notices by clicking here.

Red-Purple Bypass track foundation construction, November 2019

Lawrence to Bryn Mawr Modernization

We will begin new station and track reconstruction between Lawrence to Bryn Mawr in Spring 2021. Ahead of that, there was plenty of work under way in 2020 to get ready for this historic project.

In 2020, preparatory activities included:

  • Building temporary rail stations at Argyle and Bryn Mawr to serve customers while Lawrence, Argyle, Berwyn and Bryn Mawr are being reconstructed. We will close Lawrence and Berwyn and open the temporary stations at Argyle and Bryn Mawr in Spring 2021, and we will provide the community and customers with plenty of notice in advance of the closures.

  • Performing track improvement work that prepares our Red and Purple Line tracks to run service on two train tracks while we’re rebuilding the other two (2021-2024), as part of our promise to continue to provide train service during the entire construction period.

  • Holding virtual meetings in Spring 2021 with the public on what work is coming and when, and getting your feedback and answer your questions.

Beginning in Spring 2021, activities will include the demolition of stations, track bridges and structure and partial embankment; construction of new track foundations; and the construction of the new bridge via a gantry system.
See the latest construction activity notices by clicking here.

Advance utility relocation work and property demolition

In 2018, we began the pre-construction phase of Red and Purple Line Modernization (RPM) Phase One, which included property demolition and relocation of utility lines and equipment. It was necessary to complete this work before we could begin major construction of RPM Phase One work, which will include rebuilding four Red Line stations (Lawrence, Argyle, Berwyn and Bryn Mawr and adjacent track structure as well as constructing a new Red-Purple Bypass (RPB) north of Belmont station. The major construction work for Phase One began October 2019 and will be fully completed in 2025. 

We expect to substantially complete advance utility relocation work in early 2021. Property demolition work was substantially completed in 2019. 


Construction activity notices (CANs)

As we work hard to modernize the system for our riders, we know that our construction can and does affect people who live and work nearby. This is why we provide advanced notice to communities in the RPM project footprint about work that we will be doing. Construction Activity Notices (CANs) that we have issued for RPM Phase One work can be found here (scroll down the page). They are also emailed to affected residents and businesses and physically posted in work site areas.


Latest News

Shoring pad installation in Winthrop alley 05/12/2021

Shoring pads will be installed in the alley located between the CTA tracks and N Winthrop Ave between W Leland Ave and W Ardmore Ave. The work will require rolling alley blockages. Download Document

ComEd underground utility work in Winthrop alley 05/03/2021

Utility work will be performed in the alley behind 5800-5828 N Winthrop as part of the Red and Purple Modernization (RPM) Phase One project. Download Document

Alley pavement restoration in N Broadway alley 05/03/2021

Alley pavement restoration work will occur in the alley east of 5843-5853 N Broadway and will require closure of the alley. Download Document

Track level structural rehabilitation 04/30/2021

Track rehab work will occur on the weekends (Friday to Monday) 4/30-5/3, 5/7-5/10 and 5/14-5/17 and require alley closures on sections of W Roscoe St, W Newport Ave, N Sheffield Ave and N Seminary Ave.​ Download Document

Temporary track foundation work at N Sheffield 04/30/2021

Temporary track construction work will require closure of the alley behind 3301-3351 N Sheffield. Download Document

Handrail installation work Thorndale-Leland 04/19/2021

This work will require intermittent alley closures in the alley west of N Winthrop Ave between W Leland and W Thorndale avenues and the alley east of N Broadway between W Foster and W Berwyn avenues. Download Document

Bypass materials delivery 04/19/2021

Materials delivery at 3334-3348 N Clark St will require a parking lane closure. Download Document

Track foundation installation at Montrose 04/17/2021

Track foundation work will restrict access to the alley behind N Kenmore from Montrose. Download Document

Brown Line track level structure rehabilitation 04/16/2021

Weekend and overnight work will be performed on multiple weekends. Download Document

Vautravers building relocation work 04/12/2021

There will be sidewalk and alley closures associated with this work. Download Document

Results: 1 - 10 of 449 Articles

Note: The above includes only Construction Activity Notices related to the RPM Program as an added courtesy during the program, and does not include those related to regular maintenance to our structure or tracks, even in the area of where RPM work is taking place. Other types of Construction Activity Notices are distributed locally, only.