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Kolia Bhomora Setu is a pre-stressed concrete road bridge over the Brahmaputra River near Tezpur in Assam, India. It is named after the Ahom General Kolia Bhomora Phukan.〔("Kaliabhomora Bridge" ), ''Akash Protim Barua website'', retrieved 14 June 2007.〕 This bridge connects Sonitpur on the north bank with Nagaon District on the south bank. The length of this bridge is 3015 meters. The construction of the bridge took place from 1981 to 1987. The bridge helps the development of the North-East India. The Brahmaputra not only splits the state of Assam along its length but also cuts off the seven sister states of the North-East from the rest of the country. The river having a catchments area of 280,000 km2 flows in the most unpredictable manners, occupying 12 km to 16 km of space at places and poses a challenge to the bridge engineers. Despite the pioneering efforts of the Railways at Saraighat, the Northeast continued to suffer from the long-felt lack of transportation network. Around 25 years later, Indian Railways have turned yet another dream into reality. The 2nd Brahmaputra Bridge has greatly accelerate march of the North eastern states towards 21st century. Brahmaputra, one of the longer rivers in Asia with a total length of 2880 km – 920 km of which lie in India – had been bridged only at one place, the only link between the North Eastern states with the rest of the country. This 1.3 km rail-cum-road bridge, completed in 1962, was also constructed by Indian Railways. Road Bridge, Guwahati. The Assam PWD was entrusted with the job of making the road links on both side and unbelievably the whole task was completed even before the bridge was completed ahead of schedule. The main person behind was Late Lok Nath Barua(resident of Mazgoan, Tezpur), then Executive Engineer (Roads), who single handedly worked against odds. He was awarded a MEDAL of appreciation by Late Rajiv Gandhi on the inugration day of the bridge. ==Foundation== Out of 27 foundations, 25 are open wells. The North abutment and pier No.1 are on raft foundations. The wells have been sunk to 56 m below L.W.L, mainly from scour and seismic considerations. The strata encountered were dense sand mixed with pebbles. During sinking, obstructions in the form of wooden logs and boulders were overcome; this was possible with armoured well curb having shoe-brackets and 12 mm thick steel plates. With elaborate monitoring at each stages of sinking, it has been possible to position all the wells within permissible limits of tilt (1 in 80) and shift (150 mm) each well costing of Rs. 8 million and involving 5,000m of concrete was completed within an average period of 90 days. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Kolia Bhomora Setu」の詳細全文を読む スポンサード リンク
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