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Centre claims to have completed safety audit of 1.6 lakh bridges; to work on 147 dilapidated structures

New Delhi: The road ministry has completed safety audit of 1.6 lakh bridges in the country and found 147 structures in dilapidated condition.

The ministry launched the Integrated Bridge Management System (IBMS) to create data of all bridges and culverts in the country as part of steps to avert mishaps. "IBMS has completed the first phase of inventory and inspection of all types of bridges, which comes to 1,60,186. Of these, 147 bridges were found to be dilapidated and calls for immediate attention," Gadkari, the Union road transport and highways minister, said.

File image of Nitin Gadkari. PTI

File image of Nitin Gadkari. PTI

He said 23 such structures were found to be of over 100 years of age. Gadkari said new technologies for monitoring of bridges in real time like nano, laser and sensor were being introduced, while radars, infra ray drones, etc. will be used for their inspection. The IBMS was launched late last year at an estimated cost of Rs 300 crore.

Before IBMS there was no system to map the bridges, many of which were constructed during the British era and were on the verge of collapse. "As of date, IBMS has a database of about 1.6 lakh structures, including 1.2 lakh culverts, and are being categorised under different categories. The system, which is an initiative under 'Make in India' drive, will have the minutest details to address all safety and security concerns," he said, after having chaired a meeting of IBMS on 30 June.

The three-year project is being implemented in 18 packages. The system has data like national identity number, longitude and latitude details, classifications and socio-economic details of the area, among others. The need for this system was triggered as the country did not have any such data, while companies like BHEL had to shell out as high as Rs 50 lakh fee to get the data, whether the bridge was compatible for its machines or not for crossing it.

In addition to the structural rating, the bridges are also being assigned socio-economic bridge rating number, which will decide the importance of the structure in relation to its contribution to daily socio-economic activity of the area.

During inventory creation each bridge is assigned a unique identification number or national identity number based on the state, RTO zone and whether it is situated on an national or state highway, or is a district road.

The minister said that the system is such that precise location of the bridge in terms of latitude-longitude is collected through GPS and based on this, it is assigned a bridge location number. Thereafter, engineering characteristics like the design, materials, type of bridge, its age, loading, traffic lane, length, width of carriage way etc are collected and are used to assign a bridge classification number to the structure. These are then used to do a structural rating on a scale of 0 to 9, and each bridge is given a structural rating number.

The rating is done for each component of the structure like integral and non-integral deck, superstructure, substructure, bank and channel, structural evaluation, deck geometry, vertical clearance, waterway efficiency, etc.

Updated Date: Jul 02, 2017 16:26 PM

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