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The BCN Main Line, or Birmingham Canal Navigations Main Line describes the evolving route of the Birmingham Canal between Birmingham and Wolverhampton in England. The name ''Main Line'' was used to distinguish the main Birmingham to Wolverhampton route from the many other canals and branches built or acquired by the Birmingham Canal Navigations company. ==BCN Old Main Line== On 24 January 1767 a number of prominent Birmingham businessmen, including Matthew Boulton and others from the Lunar Society, held a public meeting in the White Swan, High Street, Birmingham〔''Smethwick and the BCN'', Malcolm D. Freeman, 2003, Sandwell MBC and Smethwick Heritage Centre Trust〕 to consider the possibility of building a canal from Birmingham to the Staffordshire and Worcestershire Canal near Wolverhampton, taking in the coalfields of the Black Country. They commissioned the canal engineer James Brindley to propose a route. Brindley came back with a largely level route via Smethwick, Oldbury, Tipton, Bilston and Wolverhampton to Aldersley.〔 On 24 February 1768 an Act of Parliament was passed to allow the building of the canal, with branches at Ocker Hill and Wednesbury〔 where there were coal mines. The Staffordshire and Worcestershire company was given the right to make the connection to their canal if the Birmingham company failed to do so within six months of opening.〔 On 2 March〔 Brindley was appointed engineer.〔 The first phase of building was to Wednesbury whereupon the price of coal sold to domestic households in Birmingham halved overnight.〔 Vested interests of the sponsors caused the creation of two terminal wharves in Birmingham. The 1772 Newhall Branch and wharf (now built upon) originally extended north of, and parallel to Great Charles Street. The 1773 Paradise Street Branch split off at Old Turn Junction and headed through Broad Street Tunnel, turned left at what is now Gas Street Basin and under Bridge Street to wharves on a tuning fork-shaped pair of long basins: Paradise Wharf, also called Old Wharf. The Birmingham Canal Company head office was finally built there, opposite the western end of Paradise Street. By 6 November 1769, 〔〔 had been completed to Hill Top collieries in West Bromwich, with a one-mile summit pound at Smethwick. Brindley had tried to dig a cutting through the hill at Smethwick but had encountered ground too soft to cope with.〔 The canal rose through six narrow (7 ft) locks to the summit level and descended through another six at Spon Lane. Water was brought from purpose-built reservoirs: Smethwick Great Reservoir (now built upon, holding 1514 locks of water), another smaller pool at Smethwick (holding 500 locks),〔 and then from Titford Pool〔 to supply the summit level.〔 In 1770 work started towards Wolverhampton.〔 On 21 September 1772〔 the canal was joined with the Staffordshire and Worcestershire Canal at Aldersley Junction via another 20 locks〔 (increased to 21 in 1784 to save water).〔 Brindley died a few days later. The canal measured 22 miles and 5 furlongs (22⅝ miles),〔 mostly following the contour of the land but with deviations to factories and mines in the Black Country and Birmingham. A branch led to Matthew Boulton's Soho Manufactory. 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「BCN Main Line」の詳細全文を読む スポンサード リンク
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