Brown Line (CTA)
| Company type | Rapid transit line |
|---|---|
| Industry | Public transportation |
| Founded | 1907-05-18 |
| Headquarters | Chicago , United States |
Area served | Chicago metropolitan area |
Key people | Chicago Transit Authority (operator) |
| Products | Rapid transit service |
| Parent | Chicago Transit Authority |
| Website | www |
The Brown Line is a rapid transit corridor within the Chicago "L" network, featuring 27 stops that link the Albany Park area to the downtown Loop district. This line operates entirely above ground and is almost completely grade-separated, making it the third most heavily utilized 'L' route, with an average weekday ridership of 35,176 passengers in 2024.
Before the CTA adopted color-coded naming in 1993, this line was identified as the Ravenswood Route. The stretch running from Belmont to Kimball was designated the Ravenswood branch, while the shuttle service between Kimball and Belmont was known as the Ravenswood Shuttle.
Route
Beginning at the Kimball terminal located in Albany Park, which houses a train storage yard and maintenance facility, the Brown Line proceeds over street-level tracks between Leland and Eastwood Avenues to . From there, it transitions onto elevated tracks for the rest of its journey.
Distinct from most American electric rail systems operating at street level, this segment employs third rail power, which introduces electrocution hazards. A tragic incident in 1977 involving an intoxicated non-English-speaking individual resulted in a $1.5 million judgment against the CTA, a decision upheld by the Illinois Supreme Court in 1992.
Beyond , the line runs parallel to Metra’s Union Pacific North line and Ravenswood Avenue heading south toward . It then veers east along Roscoe Street past Sheffield Avenue before turning south at Clark Junction, where it merges with the four-track North Side elevated line situated in Lakeview. Between Belmont and , Brown Line trains operate alongside Red Line trains. During weekday peak periods, Purple Line Express trains utilize the Brown Line’s outer tracks to serve five stations, while Red Line trains run on inner tracks stopping at two stations.
South of Armitage, Brown and Purple Lines continue through Lincoln Park and Near North Side, halting at Sedgwick, , and before crossing the Chicago River via the upper deck of the Wells Street Bridge. The route subsequently merges with the Loop Elevated at Lake Street.
Brown Line trains travel counter-clockwise around the Loop on outer tracks following Wells-Van Buren-Wabash-Lake streets, serving every Loop station prior to heading back north toward Kimball.
The Brown Line is divided into three primary segments: the Ravenswood Branch from Kimball to Belmont connecting with Purple Line Express; the North Side Main Line stretching from Belmont to Merchandise Mart; and the Loop portion running counter-clockwise from to before returning northbound toward Kimball.
Operating hours and headways
Service on the Brown Line between Kimball and the Loop operates Monday through Saturday from 4 a.m. until 2:10 a.m., and on Sundays from 5 a.m. until 1:40 a.m. During weekdays, trains run every three to eight minutes during peak hours, seven to eight minutes midday, and intervals range from six to twelve minutes overnight.
Weekend early morning service maintains fifteen-minute intervals, increasing during daytime hours to seven to eight minutes on Saturdays and ten minutes on Sundays; evening headways extend to ten to twelve minutes. Late-night operations continue with fifteen-minute frequencies until service concludes.
In morning rush periods, select Brown Line trains proceed onto the Orange Line after Harold Washington Library station, while some Orange Line trains continue as Brown Line services beyond Adams/Wabash. This operational approach—referred to internally by CTA as the Tiger Line—maximizes capacity by sharing train sets due to limited storage space at Kimball Yard.
Rolling stock
The Brown Line operates using 2600-series and 3200-series railcars, running trains composed of eight cars during weekday peak periods and four cars at other times. Between 2015 and 2018, the 3200-series cars underwent extensive refurbishments that included the installation of color LED destination displays, enhanced air conditioning systems, upgraded propulsion units, door motors, and wheel assemblies. Following these upgrades, some 3200-series vehicles were reassigned to the Blue Line, while certain 2600-series cars originally from the Orange Line were transferred to the Brown Line.
Since station renovations completed in March 2008, all stops can now handle eight-car trains during rush hours; prior to this, most stations could only accommodate six-car trains. Outside of peak times and on weekends, four-car trains are generally used, though train lengths may be extended to eight cars for special occasions or holiday events.
History
The Ravenswood line was inaugurated by the Northwestern Elevated Railroad on May 18, 1907, running between the main line and Western Avenue in Lincoln Square. By December 14 of that year, the line had been extended to reach the Kimball terminal.
In the 1970s, the Kimball terminal underwent significant renovations which included constructing a new bridge over the North Branch of the Chicago River. During the 1980s, both the Western and Merchandise Mart stations were rebuilt. Prior to the Brown Line Capacity Expansion Project, these two stations along with Kimball were the only stops on the Brown Line outside the Loop that complied with ADA accessibility standards.
Brown Line Capacity Expansion Project
Between 2004 and 2009, the Brown Line Capacity Expansion Project aimed to modernize outdated infrastructure and increase passenger capacity. The initiative commenced in late 2004 with signal system enhancements at Clark Junction. By February 2006, efforts were underway to reconstruct stations and upgrade the right-of-way between Kimball and Rockwell Avenue. This phase also included improvements to traction power systems, train control technologies, and deployment of a fiber optic communications network.
Nearly all Brown Line stations were either rebuilt or modified to comply with ADA requirements and support eight-car train operations instead of the previous six-car maximum. The Merchandise Mart station was excluded from reconstruction since it had been rebuilt in 1987–88 and already met ADA standards with capacity for eight cars. Both Kimball and Western received minor platform length extensions; the remaining sixteen stations underwent complete rebuilding.
The first stations to reopen after upgrades were Kedzie and Rockwell, which resumed service on August 16, 2006. By July 30, 2009, all stations had reopened, including the newly constructed Wellington station. The project officially concluded on December 31, 2009.
Red-Purple Bypass
As part of the Red & Purple Modernization Project, a diamond junction located north of Belmont Station was transformed into a flyover structure allowing Brown Line trains to bypass intersections with Red and Purple Line services. This modification decreased train congestion and enhanced junction throughput. Opposition arose from Lakeview community members and 2015 mayoral candidate Chuy García, who led efforts for a referendum against the project.
The CTA received environmental clearance approval from the Federal Transit Administration in January 2016 and secured a $1.1 billion federal grant in 2017 to fund construction. Sixteen properties were demolished during development, while the historic Vautravers Building was carefully moved approximately 30 feet westward for preservation purposes. Construction began on October 2, 2019, with the bypass commencing operation on November 19, 2021.
Station listing
- Note: Brown Line trains proceed to Merchandise Mart following the Clark/Lake station before continuing to serve all stations en route back to Kimball.
External links
- Brown Line on the official CTA website