The Kolkata Metropolitan Development Authority (KMDA) has started technical evaluation of bids received to select an agency for taking up major repair and retrofitting work of Baghajatin rail over bridge (ROB) which is in poor structural condition.
The Rs 42 crore work which the selected agency would need to complete within 12 months is expected to start after the elections. KMDA officials said that the ROB will get a completely new set of massive steel frame support to hold up the existing dilapidated structure. The bridge will have three new steel pillars in between each of two existing pillars to give additional support.
“It would be another structural steel made permanent support system that would hold up the existing bridge structure by fixing steel props on the columns from below. There will be three new steel made piers between the existing piers and a plate will be fixed on the deck. It would not look good to see from below, but this is required to keep the existing structure intact,” said a bridge expert. ROB will remain open for traffic during repair work. “The repair work will be conducted in such a way that there would not be any requirement to shut the bridge. Only occasionally one lane or some portion might be closed for about 30 minutes to an hour as per requirement,” said an official.
Source: Times of India