A portion of the Varthur bridge on the outskirts of the city developed a gaping crater Wednesday evening, creating a scare among motorists and throwing traffic out of gear.
The crater, measuring about one square metre, exposed the thin layer of concrete and rods used for scaffolding.
Soon after the crater came to be seen, the locals alerted the Bruhat Bangalore Mahanagara Palike, which put up barricades across the bridge, barring movement of traffic from Whitefield, while the traffic police personnel diverted vehicles. Vehicles piled up near the bridge, causing traffic snarls.
Apart from many vehicles, the Varthur bridge is used by a large number of heavy traffic vehicles (HTV) as a detour between Whitefield and Sarjapur.
The locals said the road on the bridge, which is less than 30 feet wide, is not built for the kind of heavy traffic it endures every day. The recent spell of rains is believed to have compounded the situation wrought by the poor quality of construction.
Even after the crater developed, some vehicles coming from Sarjapur continued to ply on the bridge for some time. When The Hindu visited the spot, the bridge shook violently whenever a vehicle rumbled over it.