State Street subway

State Street subway
Platform at Jackson/State
Overview
Status	Operational
Locale	Chicago, Illinois, United States
Termini	North/Clybourn Roosevelt
Stations	9
Service
Type	Rapid transit
System	Chicago "L"
Services	Red
Operator(s)	Chicago Transit Authority (1947–present) Chicago Rapid Transit Company (1943–1947)
Rolling stock	5000-series
Daily ridership	53,601 (average weekday Feb. 2013)
History
Opened	October 17, 1943
Technical
Line length	4.9 mi (7.9 km)
Character	Subway
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Electrification	Third rail, 600 V DC
Route map Legend North Side Main Line to Kimball, Howard, Skokie, and Linden Armitage Willow Portal North/Clybourn North Side Main Line to Loop Clark/Division Chicago Grand Chicago River State/Lake Lake Washington │ Washington Monroe │Monroe Jackson │ Jackson Library Milwaukee–Dearborn Subway Harrison Roosevelt 13th Street incline 17th Junction South Side Main Line to Ashland, Cottage Grove, and Midway Dan Ryan branch to 95th/Dan Ryan This diagram: view talk edit

The State Street subway is an underground section of the Chicago "L" system in The Loop which serves as the center of the Red Line. It is 4.9 mi (7.9 km) long and has a boarding average of 53,601 passengers every weekday as of February 2013.^[1] It owes its name to State Street which it runs below. Since the subway is operated by the Red Line, it serves passengers 24 hours a day/7 days a week and 365 days a year.

The subway is notable for having the longest subway platform in the world.^[2] and the longest railway platform outside of India.^[3] (and by extension, in the western hemisphere), shared by all stations from Lake Street to Jackson Boulevard.