THESE DAYS train passengers travelling between Utretiya and Jaffrabad Sections are treated to an interesting sight on the Indira Canal— a 157-metric tonne object moving slowly across the water!
This ‘object’ is actually a pair of girders being positioned for the railway bridge without interrupting the flow of canal water.
The Bridge Organisation of the Northern Railways has adopted the Callender Hamilton (CH) method that requires no support from the river bed to construct a bridge. If the CH method were not employed, flow of water would have had to be interrupted in the canal thereby, affecting normal life in the region.
“This is the first time such an effort is being made in the Lucknow Division,” claimed chief bridge workshop manager SK Raina.
For the last couple of months, over 100 workers from the Bridge Organisation have been working on the project. “In the last 48 hours, the girders moved about 150 feet and we have to cover 280 feet of the bridge length,” said Raina.
The girders have been assembled with high tensile bolts and nuts with a diameter of 1-2 inches. Raina said there were actually two girders (70 metric tonne and 80 metric tonne) linked by a special unit specially designed at the bridge workshop in Lucknow. One of these was the actual girder that had to be placed on the bridge, while the other girder was being used to push the former.
He said special anchorages of 8 metresX4metresx2metres were being used to pull the girders. It took about 60 days to connect the girders and now, would take another 15 days to disconnect them after the completion of the project.
The work of laying girders would be completed in another 15 days. “Girder-laying work is part of the major doubling project between Utretiya and Jaffrabad,” said Raina.