Blue Line (St. Louis MetroLink)

Blue Line
Blue Line
	A Blue Line train in Clayton in 2024
Overview
Other name(s)	Cross County Extension
Status	Operational
Owner	Bi-State Development Agency
Locale	Greater St. Louis, Missouri–Illinois, U.S.
Termini	Shrewsbury-Lansdowne I-44 (west); Fairview Heights (east);
Stations	25
Website	metrostlouis.org/metrolink
Service
Type	Light rail
System	St. Louis MetroLink
Operator(s)	Metro Transit
Depot(s)	Ewing Yard and Shops; 29th Street Yard and Shops
History
Opened	August 26, 2006
Previous names	Shrewsbury Branch
Technical
Line length	24 mi (39 km)
Character	Elevated, subway, at-grade
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Electrification	Overhead line, 750 V DC
Route map
Route map
	BNSF Railway
	Union Pacific Railroad
	Red Line
	to Lambert Airport Terminal 1
	Eads Bridge over
	the Mississippi River
	MO
	IL
	Red Line
	to Shiloh–Scott
	All stations are accessible

The Blue Line is the newer and shorter line of the MetroLink light rail service in Greater St. Louis. It serves 25 stations across three counties and two states.

While officially light rail, the Blue Line features many characteristics of a light metro, semi-metro or rapid transit service, including a completely independent right of way, a higher top speed, and level boarding at all platforms.