Koilwar Bridge

This 1.44 km long, 2-lane, rail-cum-road bridge connects the city of Arrah with Patna, the capital of Bihar state in India.

It is shown in the 1982 Oscar award winning film Gandhi, directed by Richard Attenborough.

He settled on the site near Pures "where the banks are well defined, and the channel had evidently for ages been confined within certain limits, proved by the existence of old Hindoo temples, far before the Mohammaden works at Muneer, built about 200 years [before 1851].

[2][8] On 5 February 1863, a special train from Howrah took Turnbull, the Viceroy Lord Elgin, Lt Governor Sir Cecil Beadon and others over two days to Benares: they alighted at the bridge and inspected it.

[9] In Benares there was a durbar on 7 February to celebrate the building of the railway and particularly the bridging of the Sone, the largest tributary of the Ganges.

A page from George Turnbull's 1851 notebook detailing his determining the approximate width of the mile-wide Sone River at the point where he decided that the bridge should be built. For the measurements he used his pocket compass and 22-yard chains . [ 2 ]
George Turnbull's 1851 diary of four of his 12-day overland journey from Calcutta (travelling by night) to Sone River, and his survey there. [ 2 ]