The ambitious 16.75-km twin-tube underground road project in Bengaluru has undergone a significant redesign, according to a recent update by the Bruhat Bengaluru Mahanagara Palike (BBMP) and the state government. The revised configuration drops three ramp connections near Mehkri Circle and adds a new exit near the Malleswaram-Sankey Tank area.
Originally the plan included 16 entry and exit ramps to serve various city zones along the alignment between Hebbal Junction and Silk Board Junction. Under the redesign, the Mehkri Circle ramp set has been removed due to anticipated traffic and structural concerns. Instead, the project now proposes a dedicated exit near Malleswaram, aimed at servicing the west-north-south corridor.
According to BBMP sources, the redesigned tunnel will significantly alter the infrastructure footprint in central Bengaluru. With the Mehkri Circle ramps out, traffic flows will be rerouted and the newly added Malleswaram exit is expected to handle feeder traffic via Sankey Tank road toward the alignment. The changes are seen as part of broader efforts to optimise urban mobility and align the tunnel project with evolving traffic patterns.
The project is part of the state’s larger push to improve urban connectivity and reduce travel time across key corridors. While the redesign is still subject to approval of the revised detailed project report (DPR), the authorities emphasise that the tunnel alignment remains largely consistent but with ramp configuration adjusted. The Mehkri Circle modification reflects concerns raised during the DPR stage about junction congestion and ramp-interaction risks.
With these changes, the tunnel road project moves into its next phase of planning, which includes finalising structural design, ramp geometry, service road interfaces and traffic modelling. The revised version now tailors access points to reflect current mobility demands and minimise disruptions in sensitive central-city zones. As the project advances, commuters and real estate stakeholders will be monitoring how the altered access arrangements influence traffic and development patterns in the northern and western corridors of Bengaluru.
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