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The Shropshire Canal was a tub boat canal built to supply coal, ore and limestone to the industrial region of east Shropshire, England, that adjoined the River Severn at Coalbrookdale. It ran from a junction with the Donnington Wood Canal ascending the 316 yard long Wrockwardine Wood inclined plane to its summit level, it made a junction with the older Ketley Canal and at Southall Bank the Coalbrookdale (Horsehay) branch went to Brierly Hill above Coalbrookdale; the main line descended via the 600 yard long Windmill Incline and the 350 yard long Hay Inclined Plane to Coalport on the River Severn. The short section of the Shropshire Canal from the base of the Hay Inclined Plane to its junction with the River Severn is sometimes referred to as the Coalport Canal. Construction of the canal was completed in 1792, and it operated successfully until the 1830s. The construction and operation of the Hay inclined plane was documented by two Prussian engineers who visited it in 1826 or 1827. In the 1840s it was leased by the Shropshire Union Canal, but was suffering from subsidence by the 1850s. Following nine breaches in 1855 and 1856, it was purchased by the London and North Western Railway company, owners of the Shropshire Union, in 1857 and most of it was closed in 1858. A railway was laid along parts of it, but a small section at the southern end remained in operation until 1912, and was not formally abandoned until 1944. The Hay inclined plane and a section of the canal now form part of the Ironbridge Gorge Museum Trust. ==History== Having completed the Wombridge Canal and the Ketley Canal with its inclined plane in 1788, William Reynolds, an innovative Ironmaster from Ketley in his twenties, set his sights on a canal from the Donnington Wood Canal to the River Severn. He enlisted the help of various others, including his father Richard Reynolds, 'Iron Mad' John Wilkinson and Earl Gower. Earl Gower owned the Donnington Wood Canal, was Lord of the Admiralty and the Lord Chamberlain to King George III.〔(【引用サイトリンク】publisher=Oakengates History )〕 An Act of Parliament was obtained on 11 June 1788, which created the ''Company of Proprietors of the Shropshire Navigation'', and a meeting was held the following day, at which £50,000 of capital was reported to have been pledged. A route for the canal had been surveyed by Reynolds, and it seems likely that he was assisted in this task by the civil engineer William Jessop, since Jessop provided evidence to support the case for the canal during its passage through Parliament.〔 Despite the known success of the inclined plane on the neighbouring Ketley Canal, water in the Ketley Canal was being lost from locks at the incline's summit: the management committee decided to hold a competition for designs for "''the best means of raising and lowering heavy weights from one navigation to another.''" After placing advertisements, they also encouraged the steam engine manuacturers Boulton & Watt to enter. A prize of 50 guineas (£52.50) was offered, and several models were submitted. The committee enlisted the help of John Wilkinson and the inventor and engineer James Watt to judge the designs, and were more generous with prizes than they had advertised, since John Lowdon of Snedshill and Henry Williams of Ketley both received £50, and several consolation prizes were also awarded. Lowden had been appointed as surveyor before the competition was completed,〔 and supervised the work. Progress was quick, as the section from the top of the Wrockwardine Wood inclined plane to the junction with the Ketley Canal was finished in early 1789. The Donnington Wood Canal built a short extension to link to the bottom of the plane. Just a year later, the canal had reached Southall Bank, but Lowden resigned, as the pressure was too great. Two other men also resigned in similar circumstances, but in February 1794, the civil engineer Henry Williams was appointed superintendent and agent for the canal, and remained in this post until 1839, when he retired. Parts of the canal were operational by 3 September 1790, when the first tolls were collected, and the Wrockwardine Wood inclined plane was working soon afterwards. In 1791, most of the main line was serviceable, although piling for the wharves on the River Severn was still taking place in May 1792, and construction was completed by the end of the year. When completed, the main line was about long, while the Horsehay branch, which was opened in 1792, was about long.〔(【引用サイトリンク】publisher=Shropshire Routes to Roots )〕 The total cost of the project was below the original estimate, at either £47,000 or £47,500. 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「Shropshire Canal」の詳細全文を読む スポンサード リンク
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