Saturday, August 9, 2014

World’s tallest railway bridge construction started

The NF Railway Construction Organization has started construction of a bridge with height of pillars up to 141metres near Noney in Manipur. This bridge is slated to become tallest in the world from the point of view of pillar height surpassing the existing tallest of Mala-Rijeka viaduct on Belgrade-Bar railway line in Europe where the height of pillars is 139m.

The railway bridge under construction on river Chenab in Jammu-Kashmir line is of arch type which is bridging a gorge of about 360m deep from bed of river to the rail level and is being considered as the highest railway bridge in the world

The proposed bridge in Manipur is part of the 111 Km long Jiribam-Tupul-Imphal railway line to connect the capital of Manipur with the broad gauge network of the country. The alignment of the railway line passes through steep rolling hills of Patkai region, eastern trail of the Himalayas. While Jiribam, a small town of Manipur near Assam –Manipur border, is situated at 37m above mean sea level, the capital city Imphal is situated at 780m above MSL. The alignment has to traverse through not only a number of deep gorges but over several rivers flowing at low ground levels.

As a result it has necessitated to construct 46 nos. of tunnels measuring total 54.5 Km in length and tall bridges in order to maintain a suitable gradient for efficient operation of railway. The longest tunnel will be 4.9 Km long between Jiribam-Tupul and 10.75 Km between Tupul-Imphal sections.

Mala-Rikeka viaduct
The Mala Rijeka Viaduct is a viaduct on the Belgrade - Bar railway, located about 20 km north of Podgorica, Montenegro. The project was started in 1969 and was completed in 1973. The viaduct is 498.8 meters (1,636 ft) long and at its highest is 200 meters (660 ft) above the Mala Rijeka, meaning literally Little river). It is also the longest bridge on the Belgrade - Bar railway.

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