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 Urban

India To Invest $37 Billion To Boost Petrochemical Capacity

India is set to become a major global player in the petrochemicals industry, driven by a planned capital expenditure of $37 billion (Rs 3.1 trillion) aimed at reducing import dependency and enhancing self-sufficiency, according to S&P Global Ratings.In its latest report titled “First China, Now India: Self-Sufficiency Goals Will Add To Petrochemicals Supply”, S&P said India’s large-scale capacity expansion—mirroring China’s earlier push—will likely intensify oversupply pressures in Asia’s petrochemical markets.Currently the world’s third-largest petrochemical consumer a..

Next Story
Infrastructure Transport

Indian Railways Expands Global Exports Of Rail Equipment

Indian Railways has announced that it is rapidly emerging as a global exporter of railway equipment, including bogies, coaches, locomotives, and propulsion systems, under the government’s ‘Make in India, Make for the World’ initiative.According to an official statement, India’s railway products are now reaching over 16 international markets, reflecting the country’s growing capacity to design, develop, and deliver world-class rail solutions.Metro coaches have been exported to Australia and Canada; bogies to the United Kingdom, Saudi Arabia, France, and Australia; propulsion systems t..

Next Story
Infrastructure Transport

RailTel Awards Rs 163 Million Contract To RTNS Technology

RailTel Corporation of India Limited (RailTel), a Mini Ratna Public Sector Undertaking, has awarded a domestic work order worth Rs 163 million to RTNS Technology Private Limited.The contract, issued on 30 September 2025, involves the supply and installation of equipment and related services for one of RailTel’s key customers. The project underscores RailTel’s commitment to advancing technology and communication infrastructure through collaboration with domestic system integrators.RTNS Technology Private Limited, an ISO-certified system integrator, provides comprehensive solutions for perim..

Advertisement

Subscribe to Our Newsletter

Get daily newsletters around different themes from Construction world.

STAY CONNECTED

Advertisement

Advertisement

Advertisement

Talk to us?