Navigable Aqueduct - Notable Navigable Aqueducts

Notable Navigable Aqueducts

• Benjamin Outram's 44 ft-long single-span Holmes Aqueduct on the Derby Canal in Derby was the world's first navigable cast iron aqueduct, narrowly pre-dating Thomas Telford's 186 ft-long Longdon-on-Tern Aqueduct on the Shrewsbury Canal, sometimes described as the world's first large-scale navigable cast iron aqueduct. The oldest currently navigable cast iron aqueduct is Outram's Stakes Aqueduct on the Huddersfield Narrow Canal at Stalybridge, built c1801 to replace an original, stone-built, four arch structure which was swept away in the floods of August 1799.

• Pontcysyllte Aqueduct (307m) carries the Llangollen Canal over the River Dee valley in north Wales, and was designed by Thomas Telford and opened in 1805. The same canal, which includes a tunnelled section, crosses a second valley on the Chirk Aqueduct (1796–1801). This navigable canal also supplies water to the former borough of Crewe and Nantwich.
• The Union Canal in Scotland has many aqueducts, including the Slateford Aqueduct that takes the canal over the Water of Leith, the Almond Aqueduct over the River Almond at Ratho and the very impressive Avon Aqueduct over the River Avon. This is the second longest aqueduct in the United Kingdom.

• Briare aqueduct (1896) near Châtillon-sur-Loire, France, is built of steel and was for a long time at 662m the longest canal aqueduct in the world.
• In recent years the building of the Lichfield Canal Aqueduct prompted the UK government to pass legislation preventing a road being built in the path of a canal being renovated without providing a tunnel or aqueduct for it to pass.

• Barton Swing Aqueduct is a swing bridge that carries the Bridgewater Canal across the lower Manchester Ship Canal. A 234 ft (71 m) section of the aqueduct rotates through 90 degrees to allow vessels to pass along the Ship Canal.
• An aqueduct near Roelofarendsveen, Netherlands (1961) (52°12′55.96″N 4°37′35.46″E / 52.2155444°N 4.6265167°E / 52.2155444; 4.6265167) carries the Ringvaart canal over the A4 highway and the HSL-Zuid being constructed, which are situated on land below the level of the canal (and below sea level).
• Gouwe aqueduct, near Gouda in the Netherlands, carries the Gouwe river over the A12 highway, which is on land below the level of the river.
• The Ash Aqueduct (1995) carries the Basingstoke Canal over the River Blackwater and Blackwater Valley Relief Road (A331).
• The Magdeburg Water Bridge in Germany (2003) connects the important Mittellandkanal over the river Elbe to the Elbe-Havel canal . Nearly 1 km long, it is the longest aqueduct in the world.