The Blue Line is a 26.93-mile-long (43.34 km) Chicago "L" line which extends through The Loop from O'Hare International Airport at the far northwest end of the city, through downtown via the Milwaukee–Dearborn subway and across the West Side to its southwest end at Forest Park, with a total of 33 stations. At about 27 miles, it is the longest line on the Chicago "L" system and second busiest, and one of the longest local subway/elevated lines in the world. It has an average of 64,978 passengers boarding each weekday in 2021.
51st is a station on the Chicago Transit Authority's "L" system, located in Chicago, Illinois and serving the Green Line. It is situated at 319 E 51st Street, three blocks east of State Street. It opened on August 28, 1892.
Western is an elevated rapid transit station on the Chicago "L"'s Blue Line, where it is located on the O'Hare branch. The station, opened in 1895, is located within the Bucktown neighborhood in the larger Logan Square community area. It has two side platforms at track level with a station house at street level.
Damen is a rapid transit station on the Chicago "L", currently serving the O'Hare branch of its Blue Line. Opened on May 6, 1895, as Robey, it is the oldest station on the Blue Line. The station serves the popular Bucktown and Wicker Park neighborhoods, and is consistently in the top 40 highest-ridership "L" stations. It has two wooden side platforms and a brick station house at street level. The west platform, serving southbound trains, contains a tower that has never been used but is a relic of the station's past. The station is served by three bus routes on Damen, Milwaukee, and North Avenues, which are each descended from streetcar lines on those streets in the early 20th century. The Blue Line has owl service; while the surrounding streetcar lines also had owl service in the early 20th century, the modern bus services do not.
The Metropolitan West Side Elevated Railroad was the third elevated rapid transit line to be built in Chicago, Illinois. It was the first of Chicago’s elevated lines to be electrically powered. The main line ran from downtown Chicago to Marshfield Avenue, with branches to Logan Square, Humboldt Park, Garfield Park, and Douglas Park. Portions of the system are still operated as sections of the Blue Line and the Pink Line.
The Metropolitan main line was a rapid transit line of the Chicago "L" system from 1895 to 1958. It ran west from downtown to a junction at Marshfield station. At this point the Garfield Park branch continued westward, while the Douglas Park branch turned south, and the Logan Square branch turned north with the Humboldt Park branch branching from it. In addition to serving the Chicago "L", its tracks and those of the Garfield Park branch also carried the Chicago Aurora and Elgin Railroad, an interurban that served Chicago's western suburbs, between 1905 and 1953.
The Humboldt Park branch was a rapid transit line which was part of the Chicago "L" system from 1895 to 1952. The branch served the West Town and the Humboldt Park neighborhoods of Chicago and consisted of six elevated stations. It opened on July 29, 1895, and closed on May 4, 1952.
The Garfield Park Branch was a rapid transit line which was part of the Chicago "L" system from 1895 to 1958. The branch served Chicago's Near West Side, East Garfield Park, West Garfield Park, and Austin neighborhoods, and the suburbs of Oak Park, and Forest Park, and consisted of twenty-two stations. It opened on June 19, 1895 and closed on June 22, 1958, when it was replaced by the Congress branch of the Blue Line.
The Logan Square branch was an elevated rapid transit line of the Chicago "L", where it was one of the branches of the Metropolitan West Side Elevated Railroad. Diverging north from the Metropolitan's main line west of Marshfield station, it opened in 1895 and served Chicago's Logan Square and West Town neighborhoods. North of Damen station, the Humboldt Park branch diverged from the Logan Square branch, going west to serve Humboldt Park. The original Logan Square branch was separated into several sections in 1951, some of which remain in revenue service as of 2023.
The Lake Street Transfer station was a rapid transit station on the Chicago "L", serving as a transfer station between its Lake Street Elevated Railroad and the Logan Square branch of its Metropolitan West Side Elevated Railroad. Located where the Logan Square branch crossed over the Lake Street Elevated, it was in service from 1913 to 1951, when it was rendered obsolete by the opening of the Dearborn Street subway.
Halsted was a rapid transit station located on the Metropolitan main line of the Chicago "L". It was in existence from 1895 to 1958, when the entire main line was replaced by the Congress Line located in the median of the nearby Eisenhower Expressway. Halsted station in particular was replaced by UIC-Halsted on the Congress Line, which eventually became part of the Blue Line.
Marshfield was a rapid transit station on the Chicago "L". Constructed by the Metropolitan West Side Elevated Railroad, it was the westernmost station of the Metropolitan's main line, which then diverged into three branches: the northwestern Logan Square branch, the western Garfield Park branch, and the southwestern Douglas Park branch. The station was in service from 1895 to 1954, when it, alongside the main line and the Garfield Park branch, was demolished to make way for the Eisenhower Expressway and rapid-transit Congress Line in its median. In addition to its use on the "L", Marshfield was served by the Chicago Aurora and Elgin Railroad (CA&E), an interurban that used the Garfield Park branch and main line's tracks, between 1905 and 1953.
Madison was a rapid transit station on the Chicago "L"'s Metropolitan West Side Elevated Railroad, serving its Logan Square branch from 1895 to 1951. The station was typical of those constructed by the Metropolitan, with a Queen Anne station house and two wooden side platforms adjacent to the tracks. For much of its existence, Madison served the nearby sports arena Chicago Stadium.
Laflin was a rapid transit station operated by the Chicago "L"'s Metropolitan West Side Elevated Railroad and located on its main line. The station existed from 1895 to 1951, when it was closed due to low ridership. The entire main line would soon be demolished for construction of the Eisenhower Expressway and its Congress Line, and the niche served by the Laflin would be filled by an entrance on the new line's Racine station.
Racine was a rapid transit station operated by the Chicago "L"'s Metropolitan West Side Elevated Railroad and located on its main line. The station existed from 1895 to 1954, when it and the other stations on the main line were demolished for construction of the Eisenhower Expressway and its Congress Line. A new station at Racine was built on the Congress Line as a replacement.
Canal was a rapid transit station located on the Metropolitan main line of the Chicago "L" that was in service from 1895 to 1958, when the entire main line was replaced by the Congress Line located in the median of the nearby Eisenhower Expressway. Starting in 1927, the interurban Chicago Aurora and Elgin Railroad (CA&E) also served the station, continuing until 1953. The station connected with Chicago's Union Station, which was one of the city's rail terminals. One of the busiest stations on the Metropolitan's routes, and of the "L" in general, it opened a second entrance on Clinton Street in 1914.
Division was a rapid transit station on the Chicago "L"'s Logan Square branch, one of several branches of the Metropolitan West Side Elevated Railroad. Located on Division Street, the station was constructed by the Metropolitan in the early 1890s and began service on May 6, 1895.
Chicago was a rapid transit station on the Logan Square branch of the Chicago "L", one of the several branches of the Metropolitan West Side Elevated Railroad, between 1895 and 1951. Located on Chicago Avenue, the station was constructed by the Metropolitan in the early 1890s and began service on May 6, 1895.
Grand was a rapid transit station on the Chicago "L"'s Logan Square branch, one of the several branches of the Metropolitan West Side Elevated Railroad. Located on Grand Avenue, the station was constructed by the Metropolitan in the early 1890s and began service on May 6, 1895.
Western was a rapid transit station on the Chicago "L", serving the Humboldt Park branch of its Metropolitan West Side Elevated Railroad. It opened in 1895 and closed in 1952.
