Bengaluru airport road to face 18 months of traffic curbs amid infrastructure work; what is the latest status of the Blue Line Metro and when will it open to passengers?

Bengaluru's Namma Metro Blue Line, which will connect Central Silk Board with Kempegowda International Airport (KIA), is expected to become fully operational by March 2028, following delays in construction and material procurement. Meanwhile, commuters travelling towards the airport will also have to contend with traffic restrictions on Ballari Road, where infrastructure work is set to affect movement for the next 18 months, ToI reported.

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Bengaluru airport road curbs:

Motorists travelling on Ballari Road, particularly those heading towards or coming from Kempegowda International Airport (KIA) through Hebbal, will have to brace for traffic restrictions and diversions for the next 18 months as Bangalore Development Authority (BDA) takes up construction of a four-lane elevated corridor between Anandnagar near Hebbal and Mehkri Circle, measuring around 1.7km.

To ensure smooth vehicular movement, motorists, including those travelling in emergency vehicles, have been advised to take alternative routes while travelling between Hebbal, the airport, and the city.

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Bengaluru Blue Line latest status

Bengaluru's 58-km Namma Metro Blue Line, which will connect Central Silk Board with Kempegowda International Airport (KIA), is now likely to be fully operational by March 2028. This marks a three-month extension from the earlier December 2027 deadline set by the Bengaluru Metro Rail Corporation Limited (BMRCL), according to a Times of India report.

The corridor will be commissioned in phases, with the Hebbal-KIA stretch targeted for completion by September 2027. The remaining KR Pura-Hebbal section, including Nagawara, is expected to be ready between December 2027 and March 2028.

Meanwhile, work on the Central Silk Board-KR Pura section has reached an advanced stage. Commercial operations on this stretch are expected to begin by mid-2027, Bengaluru Development Minister Krishna Byre Gowda said on Saturday.

Trial runs are also planned in phases. Testing on the KR Pura-Iblur stretch is expected by October 2026, followed by trial runs between Iblur and Central Silk Board by December 2026.

Why is Bengaluru's airport Metro taking so long?

The 58-km Namma Metro Blue Line, connecting Silk Board with Kempegowda International Airport (KIA), has faced several construction and engineering hurdles, particularly along the Outer Ring Road (ORR) and the Hebbal-Kempapura stretch.

One of the major challenges involves building infrastructure to accommodate four Metro tracks between Hebbal and Kempapura. This arrangement is intended to facilitate the Blue Line's future integration with the proposed Orange Line.

According to officials, a specialised three-pier portal structure is being constructed along a nearly 1-km stretch to support all four tracks. The configuration is a first for Namma Metro's mainline network.

Construction along the ORR has also been complicated by heavy traffic, utility shifting, land constraints and difficulties in developing stations along the busy corridor.

Bengaluru Blue Line construction hit by Tamil Nadu stone restrictions

The restrictions imposed by Tamil Nadu on the transportation of stone materials have emerged as another hurdle for the Blue Line project. A senior Bangalore Metro Rail Corporation Limited (BMRCL) official said contractors working on the corridor were facing difficulties procuring construction materials.

The elevated stretch between Silk Board and KR Pura is at an advanced stage of construction, while work on the KR Pura-KIA section is still underway.

The restrictions have also affected several other infrastructure projects in Bengaluru. Karnataka Truck Owners' and Agents' Association president GR Shanmugappa said the impact had extended beyond Metro construction.

"More than 40,000 tonnes of stone were being transported to the city before the ban; 600 to 700 truck owners have been affected now," Shanmugappa told The Times of India.

Tamil Nadu introduced the restrictions citing increased domestic demand, inadequate supply and rising prices of construction materials. The move was also aimed at curbing illegal mining and unauthorised transportation of stone.

The restrictions came into effect on July 27 for an initial period of three months but have remained in place since then.