St. Louis Northside-Southside Corridor Transit Project

The Northside-Southside corridor has been a focus of regional transit planning for more than two decades. Recently, the region shifted from exploring a light rail project along this corridor to studying the feasibility of Bus Rapid Transit (BRT) options. This change was driven by several factors, including the significant cost of a light rail expansion, estimated at over $1.2 billion; evolving metrics at the federal level for critical funding; and the lack of sufficient matching funds for a project of this scale.

The City of St. Louis requested this pivot in early September 2025 due to the changing federal funding conditions under the Federal Transit Administration’s (FTA) Capital Investment Grant (CIG) program. According to a statement from Mayor Spencer’s office released at the time, her administration felt that the project was uncompetitive and beyond city’s available funding capacity. She requested the exploration of alternatives.

The Bi-State Development Board of Commissioners then voted on September 26, 2025, to revise the Program Management Consultant contract to evaluate alternative transportation options for the Northside-Southside corridor, including Bus Rapid Transit (BRT). The proposed 15-month, $10 million study, plus 10 percent contingency effort, will cover program management, environmental work, alternative analysis and preliminary design of the project up to 30 percent. This study modification is being funded by the City of St. Louis’ Metro City Capital Trust Fund.

The FTA has confirmed that this shift in mode evaluation is acceptable for this proposed project to remain in the project development phase for potential CIG or Small Starts Program funding process. Metro Transit is now looking into the 2017 City Sales Tax funding source to evaluate whether it can legally serve as a local funding match for the revised project.

In the coming months, the St. Louis community can expect robust public engagement as project leaders aim for a preferred alternative — expected in Spring 2026 — that reflects a community-driven plan. From there, the project will advance into the design phase and the FTA’s funding pipeline.

Historical Context of the St. Louis MetroLink Green Line

The St. Louis MetroLink Green Line was the originally proposed light rail expansion project for the Northside-Southside corridor in the City of St. Louis. The project included 10 stations and 5.6 miles of in-street light rail running along Jefferson Avenue from Chippewa Street in the south to Natural Bridge Avenue in the north and connecting to the existing MetroLink system via a transfer station in Midtown.

The goal was to help preserve and enhance existing neighborhoods, promote unity, achieve regional objectives, reinforce existing public and private investments, and provide improved transportation for a substantiated number of people. The project was expected to provide equitable access to jobs, help revitalize neighborhoods and support Justice40 Initiative principles. As proposed, the MetroLink Green Line would have been a significant investment in historically underserved neighborhoods and served as a means for enabling residents with limited transportation options to gain access to both growing and established job centers.

It was expected to utilize low-floor MetroLink vehicles in the street operating within a dedicated right-of-way area (no cars allowed) separated from traffic by a curb. This was anticipated to enhance safety and improve train travel times.

In February of 2024, East-West Gateway Council of Governments, the St. Louis region’s metropolitan planning organization, approved the light rail line as the locally preferred alternative (LPA) for the corridor. This decision was fueled by a revision made to an initial recommendation based on a 2018 study that included 10 stations and the consideration of three others. The stations under consideration — including the Palm Street/Salisbury Street Station, the Russell Boulevard Station and the Arsenal Street Station — were eliminated, leaving the original 10 stations located every 0.6 miles with narrower platforms, sidewalks and buffer allowances, and decreased lane capacity.

Approval of the LPA paved the way for the project to advance to the environmental analysis and 30% design stage, as well as seek entry into the FTA’s CIG pipeline, which is a multi-year federal funding process.

Visit the East-West Gateway Council of Government’s website for additional information on the Northside/Southside corridor and corridor planning in the St. Louis region.

What is Bus Rapid Transit (BRT)?

According to the FTA, Bus Rapid Transit or BRT is “a high-quality, bus-based transit system delivering fast and efficient service that can include dedicated lanes, busways, traffic signal priority, off-board fare collection, elevated platforms and enhanced stations.”

In recent years, the use of BRT has expanded in major cities around the United States like New York City, Los Angeles and Boston and in smaller cities including Minneapolis, Indianapolis and Kansas City.

BRT provides a level of service comparable to light rail, making it more convenient, reliable and faster than regular bus service. With certain features built into the system, BRT service can avoid delays that plague regular bus service like getting caught in traffic and riders queuing to purchase fare on board.

View the Colorado Department of Transportation’s video on a potential BRT station design to help better envision what this type of system can look like:

Kansas City BRT Story:


The Kansas City Area Transportation Authority (KCATA) currently operates two BRT lines — the Troost MAX and Prospect MAX. The Troost MAX line opened in January 2011 and the Prospect MAX line opened in December 2019 at a cost of $30 million and $56 million, respectively. The Main MAX is commonly referred to as the area’s first BRT line, which cost $21 million to build and opened in July 2005, but it has since been converted into the Main Street Extension of the KC Streetcar.

In Kansas City, the BRT system incorporates specialized shelters with real-time signage, improving the rider experience. The KCATA has been pleased to see public and private investments spring up along the BRT service corridors.

Minneapolis-St. Paul BRT Story:


Metro Transit of Minneapolis-St. Paul currently operates eight BRT lines, with four more under development. Ridership data shows an increase of 115% from 2022 and 2024 across BRT lines, demonstrating an increased service demand. Metro Transit is therefore developing a 165-mile BRT network with 12 lines that are expected to be operational by 2030. It will offer access to hospitals, the University of Minnesota, Central Business Districts, cultural and arts districts, parks and much more.

Demystifying Bus Rapid Transit: An Educational Webinar by CMT

On December 9, 2025, Citizens for Modern Transit (CMT) facilitated a virtual panel discussion on the effectiveness of BRT systems. It featured leaders of BRT projects in Minneapolis and Kansas City, as well as the lead on the BRT study in the City of St. Louis and the head of the St. Louis metropolitan planning organization who discussed designing and funding that transit infrastructure project.

View the webinar recording:

Get Involved

Looking for a way to share feedback on the Green Line BRT project? Visit www.metrolinkgreenline.com/get-involved/ and fill out the Public Comment Form or sign up for email updates.

Have a question about BRT you would like Citizens for Modern Transit (CMT) to look into? Send it via email to info@cmt-stl.org

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