Indian bridge to collapse due to human saliva
NEW DELHI – Howrah Bridge is situated in Kolkata, India and it was built in 1943 during the British rule, and now represents one of the most famous symbols of Kolkata. Though the bridge is at high risk of collapse due to human saliva. You can stumble often in people who spit the so called chewing paan, i.e a mild intoxicant that contains betel buts and leaves, on the steel hangers of the bridge.
Cleaning is not enough the corrosion levels are very high, in fact the thickness of the hangers has dropped to half of the original form 6mm to 3mm.