Blue Line (Namma Metro)

The Blue Line or ORR-Airport Metro Line is part of the Namma Metro rail network for the city of Bangalore, Karnataka, India. It consists of two sections - Phase-2A (Central Silk Board to Krishnarajapura) and Phase-2B (Krishnarajapura to Airport). Construction of Phase-2A began in August 2021. Construction of Phase-2B began in February 2022. The 58.19 km line connects Central Silk Board with the Kempegowda International Airport. The Line is mostly elevated but also has an at-grade (surface) section close to the Airport and 2 short underground sections where it passes the Jakkur Aerodrome and Yelahanka AFB. There are 30 stations on the line of which the two station/s at the Airport may be at surface level or underground. Blue Line will have interchanges with the Yellow Line at Central Silk Board, Purple Line at KR Pura, Pink Line at Nagawara and with the future /proposed Orange Line at Hebbal.

Blue Line
Overview
Other name(s)ORR East-Airport Metro Line
OwnerBangalore Metro Rail Corporation Limited (BMRCL)
LocaleBangalore, Karnataka, India
Termini
Stations13 (Phase-2A) + 19 (Phase-2B) = 32
Websitebmrc.co.in
Service
TypeMetro
SystemNamma Metro
Depot(s)Baiyappanahalli, Doddajala
History
Planned openingPhase 2A - June 2026 (2026-06)
Phase 2B - June 2026 (2026-06)
Technical
Line length58.19 km (36.16 mi)
Number of tracks2
CharacterElevated, At Grade, Underground
Track gauge1,435 mm (4 ft 8+12 in) standard gauge
Electrification750 V DC third rail
Blue Line Map (TBC)

Central Silk Board
Yellow Line
Under Construction
HSR Layout
Agara
Ibbaluru
Bellandur
Kadubeesanahalli
Kodibeesanahalli
Marathahalli
ISRO
Doddanekundi
DRDO Sports Complex
Sarasvathi Nagar
Krishnarajapuram
Purple Line
Baiyappanahalli Depot (U/C)
Kasturi Nagar
Horamavu
HRBR Layout
Kalyan Nagar
HBR Layout
Nagawara
Pink Line
Under Construction
Veerannapalya
Kempapura
Orange Line
Proposed
Hebbal
Kodigehalli
Jakkur Cross
Jakkur Plantation
Yelahanka
Bagalur Cross
Bettahalasuru
Chikkajala
Doddajala
Doddajala Depot (U/C)
Airport City
KIAL Terminals

In June 2022, BMRCL launched the first ever U Girder span on ORR-Airport metro line. The extension of the Purple Line and construction of the Pink and Yellow Lines is currently in progress. The Pink, Yellow and Blue lines will be CBTC-signaling enabled, unlike Namma Metro's first two lines (Purple and Green lines use distance-signaling). In June 2023, the Deputy Chief Minister of Karnataka D. K. Shivakumar informed that Metro line to Kempegowda International Airport will be completed by June 2026, plus or minus 3 months.

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