+
NHAI scraps 27 km elevated corridor, considers flyovers on GST Road
ROADS & HIGHWAYS

NHAI scraps 27 km elevated corridor, considers flyovers on GST Road

The National Highways Authority of India (NHAI) is considering altering its plans to reduce the project cost and mitigate the financial burden imposed on road users. Instead of constructing a 27-km long elevated corridor from Tambaram to Chengalpattu on the GST Road, NHAI is contemplating the construction of multiple elevated stretches or flyovers to ensure smooth traffic flow.

Initially, the elevated corridor project, estimated at Rs 35.23 billion, was supposed to commence at Perungalathur and terminate beyond Paranur Toll Plaza, traversing 15 major and minor intersections on the GST Road, as outlined in the draft DPR. The projected cost per kilometer for the elevated project stands at Rs 1.47 billion.

Sources have revealed that this reconsideration stemmed from the realization that the extensive elevated road would incur exorbitant project costs, resulting in substantially high toll charges, thus posing an additional burden on road users. Accordingly, the revised plan aims to erect multiple flyovers instead of a singular elevated corridor to alleviate the toll burden.

Existing grade separators or flyovers already exist at all major junctions between Perungalathur and Vandalur. NHAI is contemplating the construction of a seven-kilometer long elevated corridor from Iyencheri junction to Potheri to facilitate the unimpeded entry and exit of buses to the Kilambakkam terminus, thus bypassing Urapakkam, Guduvancheri, and Kattankulathur junctions, according to sources.

We have tasked the consultant with pinpointing the specific locations where the elevated stretches or flyovers should be erected. Following the submission of the DPR, we will reach a final decision, stated the sources. It is anticipated that the elevated stretches will be developed at Maraimalai Nagar, Ford Factory, Singaperumal Koil, and Mahindra City junctions.

The proposed elevated roads or flyovers will be six-lane structures along the GST Road, with provisions for local traffic to utilise lanes beneath them.

NHAI has already completed the eight-laning of the Tambaram-Chettipuniyam stretch by narrowing the median width on the GST Road. Subsequently, the completion of road widening efforts has significantly alleviated traffic congestion. The GST Road witnesses approximately 1.5 lakh vehicles daily. Once the construction of the ROB-cum-grade separator at Perungalathur concludes, traffic movement between Tambaram and Urapakkam junctions is expected to be unimpeded.

The National Highways Authority of India (NHAI) is considering altering its plans to reduce the project cost and mitigate the financial burden imposed on road users. Instead of constructing a 27-km long elevated corridor from Tambaram to Chengalpattu on the GST Road, NHAI is contemplating the construction of multiple elevated stretches or flyovers to ensure smooth traffic flow. Initially, the elevated corridor project, estimated at Rs 35.23 billion, was supposed to commence at Perungalathur and terminate beyond Paranur Toll Plaza, traversing 15 major and minor intersections on the GST Road, as outlined in the draft DPR. The projected cost per kilometer for the elevated project stands at Rs 1.47 billion. Sources have revealed that this reconsideration stemmed from the realization that the extensive elevated road would incur exorbitant project costs, resulting in substantially high toll charges, thus posing an additional burden on road users. Accordingly, the revised plan aims to erect multiple flyovers instead of a singular elevated corridor to alleviate the toll burden. Existing grade separators or flyovers already exist at all major junctions between Perungalathur and Vandalur. NHAI is contemplating the construction of a seven-kilometer long elevated corridor from Iyencheri junction to Potheri to facilitate the unimpeded entry and exit of buses to the Kilambakkam terminus, thus bypassing Urapakkam, Guduvancheri, and Kattankulathur junctions, according to sources. We have tasked the consultant with pinpointing the specific locations where the elevated stretches or flyovers should be erected. Following the submission of the DPR, we will reach a final decision, stated the sources. It is anticipated that the elevated stretches will be developed at Maraimalai Nagar, Ford Factory, Singaperumal Koil, and Mahindra City junctions. The proposed elevated roads or flyovers will be six-lane structures along the GST Road, with provisions for local traffic to utilise lanes beneath them. NHAI has already completed the eight-laning of the Tambaram-Chettipuniyam stretch by narrowing the median width on the GST Road. Subsequently, the completion of road widening efforts has significantly alleviated traffic congestion. The GST Road witnesses approximately 1.5 lakh vehicles daily. Once the construction of the ROB-cum-grade separator at Perungalathur concludes, traffic movement between Tambaram and Urapakkam junctions is expected to be unimpeded.

Next Story
Infrastructure Transport

MMRDA Installs 325-Tonne Steel Spans on Mumbai Metro Line 4

The Mumbai Metropolitan Region Development Authority (MMRDA) has achieved a key construction milestone on Metro Line 4 with the successful installation of three large steel spans at Bhandup West during overnight operations.The spans, together weighing 325 metric tonnes, were launched using eight heavy-duty cranes and 12 multi-axle vehicles. The operation required precise engineering and meticulous planning to minimise disruption in the densely populated suburban area.Due to effective inter-agency coordination, the work—originally scheduled across four nights—was completed within just two n..

Next Story
Infrastructure Transport

CMRL Targets March 2027 Opening for Vadapalani–Panagal Park

Chennai Metro Rail Limited (CMRL) is progressing as scheduled to open the Vadapalani–Panagal Park section of Phase II’s Corridor 4 by March 2027. The 3.5 km underground stretch is part of the 26.1 km Corridor 4 connecting Lighthouse with Poonamallee Bypass.Construction activities are advancing steadily, with tunnelling works between Vadapalani and Panagal Park already completed. Track-laying operations are expected to commence shortly. At Panagal Park station, structural works have reached the concourse and platform levels, while excavation continues at the lowest level.CMRL is also consid..

Next Story
Infrastructure Transport

Maha-Metro Invites Pune Metro Civil Maintenance Bids

Maharashtra Metro Rail Corporation Limited (Maha-Metro) has invited bids for the annual civil maintenance contract of the Pune Metro Rail Project. The tender, bearing ID and number P1-O&M-20/2025, is scheduled to close on 23 February 2026, with a pre-bid meeting slated for 10 February 2026. The earnest money deposit (EMD) for the contract is Rs 3,50,500, and the duration of the contract is one year.The scope of work includes annual civil maintenance of 28 elevated and underground stations, 28.079 km of elevated viaduct including steel bridges, 12.15 km of tunnels, and two depots under the ..

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

Advertisement

Advertisement

Open In App