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The Boyne Navigation ((アイルランド語:Loingseoireachta na Bóinne)) is a series of canals running 31 km (19 mi)〔 roughly parallel to the River Boyne from Oldbridge to Navan in County Meath, in Ireland. The navigation was once used by horse-drawn boats travelling between Navan, Slane and the port of Drogheda; however is now derelict. The navigation is currently been restored voluntarily. The Boyne Navigation branch of the Inland Waterways Association of Ireland have an agreement with An Taisce giving it an exclusive license to carry out restoration work on the navigation to return it to a usable waterway. ==History== The Boyne Navigation comprises two sections; the Lower Navigation from Drogheda, near mouth of the Boyne, to Slane and the Upper Navigation is from Slane to Navan. The navigation channel is partly the river itself and partly stretches of canal, mostly on the south side of the river. The route uses the river exclusively below Oldbridge while the Upper Navigation is mostly canal. The designers intended that the navigation continue upstream along the Boyne to Trim where it could connect with the Royal Canal. The section from Navan to Trim was (never built ) and the Boyne Navigation remains disconnected from other inland waterways in Ireland.〔 The Boyne Navigation Company began work on the lower section of the navigation from the sea lock at Oldbridge to Slane in 1748 and was completed in the 1760s. The upper section from Slane to Navan was completed in 1800. The main cargo on the navigation was grain and flour between the mills on the river and the port of Drogheda and coal in the other direction.〔 At four places along the route the towpath switches from one side of the river to the other. Where this happened the horse would step onto the barge while it was poled across to the other side.〔 David Jebb was the engineer in charge of the construction. Jebb himself built a flour mill at Slane in 1766 to take advantage of the navigation that he had recently completed that far. When opened it was the largest mill of its kind in Ireland.〔〔 At least two tour boats were known to have operated on the navigation one by the name of Ros na Righ. A traditional craft used by people on the Boyne was the Boyne cóireáil (circular currachs). A group called Boyne Currach are currently building replicas of the original currachs. 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「Boyne Navigation」の詳細全文を読む スポンサード リンク
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