Bengaluru Tunnel Road DPR Reduces Tunnelling Timeline to 24 Months
ROADS & HIGHWAYS

Bengaluru Tunnel Road DPR Reduces Tunnelling Timeline to 24 Months

Officials from Bengaluru Smart Infrastructure (B-SMILE) claim the reduced timeline is achievable through the deployment of advanced TBMs, each capable of boring a minimum of 200 metres per month—more than double the previous estimate. The overall project duration has also been reduced from 61 months to 50 months in the final DPR.

“We initially considered six TBMs with a cutting speed of 90 metres per month, but that made the process too lengthy,” said B S Prahallad, Director, B-SMILE. “Switching to eight high-speed machines allows us to complete 32 km of tunnelling in two years under optimal conditions.”

However, experts have raised concerns over the ambitious schedule. Ashish Verma, professor at IISc, noted that tunnel excavation is fraught with unpredictable ground conditions, which the DPR may not have adequately accounted for. “Based on Bengaluru’s tunnelling history, unexpected geological challenges and bureaucratic delays are frequent,” he said.

Independent mobility expert Satya Arikutharam criticised the DPR’s assumptions, questioning the cost implications of using additional TBMs and the lack of realism in the projected timeline. “Unrealistic deadlines will deter serious contractors from bidding,” he warned.

New source: New Indian Express

Officials from Bengaluru Smart Infrastructure (B-SMILE) claim the reduced timeline is achievable through the deployment of advanced TBMs, each capable of boring a minimum of 200 metres per month—more than double the previous estimate. The overall project duration has also been reduced from 61 months to 50 months in the final DPR.“We initially considered six TBMs with a cutting speed of 90 metres per month, but that made the process too lengthy,” said B S Prahallad, Director, B-SMILE. “Switching to eight high-speed machines allows us to complete 32 km of tunnelling in two years under optimal conditions.”However, experts have raised concerns over the ambitious schedule. Ashish Verma, professor at IISc, noted that tunnel excavation is fraught with unpredictable ground conditions, which the DPR may not have adequately accounted for. “Based on Bengaluru’s tunnelling history, unexpected geological challenges and bureaucratic delays are frequent,” he said.Independent mobility expert Satya Arikutharam criticised the DPR’s assumptions, questioning the cost implications of using additional TBMs and the lack of realism in the projected timeline. “Unrealistic deadlines will deter serious contractors from bidding,” he warned.New source: New Indian Express

Related Stories

Gold Stories

Next Story
Infrastructure Urban

Vedanta Metal Bazaar Expands to Global Markets

Vedanta Aluminium has expanded its digital e-commerce platform, Vedanta Metal Bazaar, to international markets, enabling overseas customers to order and purchase aluminium products online.The platform will now be available to buyers across Asia, Europe, Africa and the Americas, providing a digital gateway for export transactions with 24x7 access.In FY26, Vedanta Metal Bazaar processed transactions worth nearly $4.1 billion, or over Rs 380 billion, and fulfilled more than 23,000 orders. The platform is also used regularly by more than 550 MSMEs in India alongside large OEM customers.The export ..

Next Story
Infrastructure Urban

Ramky Infrastructure Q1 FY27 Revenue Rises 24.3%

Ramky Infrastructure Limited reported a 24.3% year-on-year increase in consolidated revenue from operations to Rs 471.2 crore for Q1 FY27, compared with Rs 3.79 billion in the corresponding quarter of FY26.Standalone revenue from operations rose 27.5% YoY to Rs 4.51 billion from Rs 3.54 billion, while total standalone income increased 35% to Rs 5.32 billion.Consolidated profit before tax stood at Rs 540.9 million during the quarter. The company highlighted a sharp sequential improvement compared with a pre-exceptional loss of Rs 190.1 million in Q4 FY26.Two of the three projects awarded during..

Next Story
Technology

LTTS Launches AgenticIQ AI Platform for Engineering

L&T Technology Services (LTTS) has launched AgenticIQ, an end-to-end agentic AI platform designed for engineering and manufacturing organisations.The platform is aimed at helping enterprises move beyond isolated AI pilots by enabling autonomous, multi-agent workflows across engineering, product development, manufacturing, industrial operations and customer experience.AgenticIQ is built on LTTS’ Engineering Intelligence portfolio and converts existing engineering capabilities into specialised, reusable AI agents. Its planning-first architecture is embedded into engineering and production ..

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement