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The National Highways Authority of India (NHAI) has awarded a contract worth approximately INR 181 crore to construct a 7 km greenfield bypass near Gangaikonda Cholapuram in Tamil Nadu. The project, announced in the past week, aims to divert vehicular traffic particularly heavy vehicles away from the UNESCO World Heritage temple precinct located along NH-81 in Ariyalur district. The two-lane bypass with paved shoulders will run between Ponneri Lake and Meensurutti, including service roads, bridges, and underpasses. The initiative is intended to reduce congestion, improve safety for pilgrims and tourists, and minimise structural and environmental impact on the heritage site. The project is expected to be completed within a year and will also enhance regional connectivity.
The National Highways Authority of India (NHAI) has awarded a contract in the past week for the construction of a 7 km greenfield bypass near Gangaikonda Cholapuram in Ariyalur district, Tamil Nadu, at an estimated cost of INR 181 crore, with the objective of diverting traffic away from the temple zone and improving safety and mobility along the NH-81 corridor. Advertisement
The bypass will be developed as a two-lane road with paved shoulders on the Kallagam Meensurutti section of the national highway. The alignment is designed to deviate from the existing NH-81 near Ponneri Lake, run north of the Gangaikonda Cholapuram temple complex, and reconnect near Meensurutti, thereby bypassing the core heritage area and adjoining settlement.
The project has been conceived to address congestion and safety concerns arising from the current highway alignment, which passes in close proximity to the temple complex. Frequent movement of heavy vehicles, including trucks transporting construction materials, has been identified as a key issue affecting both traffic flow and visitor access. Authorities indicated that the bypass would redirect through traffic, particularly heavy vehicles, away from the temple precinct, allowing safer movement for pilgrims and tourists.
The infrastructure scope includes approximately 3.4 km of service or slip roads, along with two minor bridges, vehicular underpasses, light vehicular underpasses, and box culverts. These components are intended to ensure seamless integration with existing road networks and facilitate local connectivity while maintaining uninterrupted highway movement.
The project also carries heritage preservation considerations, given the proximity of the existing highway to the Brihadeeswara Temple at Gangaikonda Cholapuram, a UNESCO World Heritage site dating back around 1,000 years. Officials stated that reducing vehicular movement near the monument would help limit air pollution, traffic noise, and vibrations that could potentially affect the structural integrity of the temple and its inscriptions.
In addition to decongestion, the bypass is expected to improve travel efficiency for vehicles moving between key regional centres, including Tiruchirappalli, Chidambaram, and Chennai. By providing an alternative route for non-local traffic, the project aims to reduce travel time and improve overall corridor efficiency.
The foundation for the project was laid recently, and construction is expected to be completed within a year, subject to execution progress and site conditions.
The development forms part of broader efforts by NHAI to upgrade national highway infrastructure while addressing site-specific challenges such as heritage conservation, traffic management, and regional connectivity. The bypass is expected to balance mobility requirements with preservation needs in a historically significant location, while also supporting local economic activity linked to tourism and transit movement.
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