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The Calcutta Municipal Railwaywas used to carry the refuse of [[Calcutta]] to a dumping ground at Dhappa , owned by which was known as the Square Mile. It was six miles east of the Corporation and constructed city in 1867, runs along the side an area of salt marshes. The line ran from Bag Bazar on the Hooghly River to Circular Road and down its whole length as far as Theatre Road. This designates There were two junctions opposite Dhuttumtollah Street, where the eastern edge line travelled of east towards the densely built up area, Square Mile. These formed a triangular junction with a the Square Mile branch leading off east . The line then followed the outfall sewer canal, passing the workshops and shed at Entally. It then carried on passing the drainage pumping station at Tangra and followed the line of the high level sewer, past the Municipal Slaughter House and on to the Square Mile. There were six platforms on the system where refuse was transferred from carts to the Salt Lakerailway system <ref name =WB65>“Industrial Railways and Locomotives of India and South Asia” compiled by Simon Darvill. Published by ‘The Industrial Railway Society’ 2013. ISBN 978 1 901556 82-7. Available at http://irsshop.co.uk/India. Reference: Entry WB65. page ....</ref>.

The purpose broad gauge([[Rail_gauge#Broad_Gauge|BG]]) system opened in 1868 when there was 8 miles(13km) of this line track. By 1895 there was 23 miles(37km) of track including sidings. On average the system had around 270 ten-ton refuse wagons which made about 39,000 journeys per year to and from the Square Mile by the mid 1920’s.<br>It is unique but rather lowlyunknown when the system closed, being it would appear to transport be sometime in the city’s waste to a suitable dumping groundmid 1970’s <ref name =WB65/>.

A handful ==Other users of enginesthe Municipal Railway==As well as carrying the city refuse and offal from the Slaughterhouse, not dissimilar the system was also used <ref name =WB65/>:-*To deliver road-building materials to those of various Corporation depots around the system, there were on average 15 wagons used for this purpose *Between 1898 and 1905 the [[Calcutta Storm Water Construction Railway|Calcutta Storm Water Construction]] was undertaken by [[Martin's Light Railways|Martin & Co.]] and the system was used for this purpose. *Various third parties also used the system and Contractors were encouraged to have building materials delivered via the system. *The [[Calcutta Port Commissioners' Railway| Calcutta Port Commissioners]], work used the line. before they had a connection to the [[East Bengal Railway]](EBR) at Sealdah  ==External Links=="*The [[East Bengal Railway Raj Safari 1a" by Keith Scholey|EBR]] used the line for delivery of wagons for onward shipment of goods from the Port

[[Category:State Industrial Railways]]