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THE UNION CANAL.
The Union Canal came about due to a need for a quicker and more cost effective way of transporting goods between the two main cities of Scotland, Edinburgh and Glasgow. The Forth & Clyde Canal, completed in 1790, ran from Bowling on the River Clyde to Grangemouth on the River Forth and any goods from Glasgow destined for Edinburgh then had to be transported overland from Grangemouth which was both slow and expensive.
From approximately 1791 various discussions, surveys and reports were commissioned to look into the feasibility of building a canal from Edinburgh to Glasgow. In 1813, after a 15 year break in discussions due to the Napoleonic Wars, Hugh Baird the resident engineer on the Forth & Clyde Canal suggested a route which called for a branch to be taken from the Forth & Clyde at the village of Camelon near Falkirk to run to a basin in the Fountainbridge area of Edinburgh. This was a cheaper option than any other previously submitted but it did not win much favour or public support. After much discussion, further suggestions for the route of the canal and a defeat of the first reading of the Union Canal Bill in the British Parliament in 1815, Baird’s plans were eventually accepted at the second reading of the Union Canal Bill in June 1817. The Union Canal Company was established under the Act to construct a canal from Lock 16 at Camelon to Edinburgh and in August 1817 Hugh Baird was appointed as Canal Engineer. Work began on the Canal at the Edinburgh end in March 1818 mainly to Baird’s design.
The construction of the canal was carried out by the crudest of methods, picks, shovels, wheelbarrows and the brute strength of the migrant Irish and Highland workers who had come to the industrialised Central Scotland looking for work. The work was hard and gruelling and because of the nature of the work accidents were common. There were frequent complaints from the local communities about the workers, the most common being for drunkenness and riotous behaviour.
The Union Canal was designed as a contour canal, i.e. it follows the contours of the hills and in this case is 240 feet (73m) above sea level. This is more economical with water and produces a long level stretch of water with no locks. Being a contour canal Baird was confronted with some major obstacles notably taking the canal over the Rivers Avon and Almond and The Water of Leith and also through Prospect Hill in Falkirk. The rivers were all crossed by means of aqueducts with the Avon Aqueduct at 85 feet (26m) above the River and 900 feet (219m) long being the longest and tallest Scottish aqueduct.
Prospect Hill was altogether a different matter.
Callendar House, owned by the landowner William Forbes of Callendar Estate, sits in the shadow of Prospect Hill and Forbes refused to allow the canal to follow the contour around the Hill within sight of Callendar House and its gardens - so Baird was faced with digging a tunnel through the Hill. The tunnel, designed to be 690 yards (631m) long and at least 12 feet (3.6m) high was cut through the solid limestone, coal bearing rock and millstone grit of Prospect Hill and like the rest of the canal, was cut by the brute force of the navvies with picks, shovels and using gunpowder to to blast the rock into small pieces. Many of the “shot holes” can still be seen in the walls of the tunnel. The tunnel was built by digging down through the rock from above, through these shafts and then working outwards towards the ends, the navvies met the others tunnelling inwards.These shafts can still be seen in the tunnel roof. The towpath also continues through the tunnel, and at 5 feet (1.5m) is more than wide enough for a horse to pull a lighter or scow through the 13 foot (4m) wide waterway.
There are numerous bridges over the canal, all built of dressed stone which, although being expensive to build, they require little upkeep and are a permanent reminder of the craftsmen of the day. The bridges were all built around 1820 and are numbered from the Edinburgh end going west, the last being number 62, Walkers Bridge, close to the west end of the canal at Bantaskine in Falkirk. The most notable bridge is number 61, the “Laughin’ and Greetin’” Bridge. The keystones on this bridge are engraved with faces - the one facing west being that of a crying (or greetin’) man and the one facing east being that of a laughing man. The reason for the engravings are lost in the mists of time but it is thought that the east looking, Laughing face looked over the contractor who had the easy, and profitable, job of digging the level open canal to Edinburgh, whilst the Greetin’ west face looked over the contractor who had the hard and dangerous job of digging the tunnel and then the eleven locks down to the Forth & Clyde Canal, and going bankrupt as a result.
The Union Canal is 110 feet (34m) above the Forth & Clyde Canal and to allow barges access to this Canal, and to Glasgow, a flight of eleven locks was built down into Port Downie adjacent to Lock 16 on the Forth & Clyde. These locks were situated close to the West end of the Union Canal near Port Maxwell now known as Greenbank, and parts of the stonework are still visible today.
The Union Canal ran from Port Hopetoun adjacent to Lothian Road in Edinburgh, over the Water of Leith by the Slateford Aqueduct, through Ratho, Broxburn, Linlithgow, Polmont and terminating in Falkirk. The final cost of building the 31.5 mile (51 km) Canal was in excess of £600,000 and it was finally opened to traffic in January 1822 with the official opening in May of that year.
From its opening in 1822 until about 1842, when the Edinburgh to Glasgow railway opened, the canal was used to convey passenger traffic from Edinburgh to Falkirk and onward to Glasgow, peaking at 200,000 passengers in 1836. It was also used extensively by day-trippers who sailed in pleasure boats from Edinburgh to see the scenic open countryside and the architectural splendour of the aqueducts and bridges. But the main purpose and use of the canal was for commercial traffic and this had a substantial effect on the development and growth of towns and industry in Central Scotland. Goods such as coal, wood, stone, sand and brick were carried into the fast growing City of Edinburgh and hides were taken back to the tanneries in Linlithgow and Falkirk. The opening of the Edinburgh to Glasgow railway sounded the death knell of the Union Canal as all the goods once transported by barge were sent on the much faster railway.
From 1845 the Canal changed owners on many occasions and in 1933, with trade almost nil, the flight of locks from the Union to the Forth & Clyde and Port Downie were closed and subsequently infilled. Despite this the Canal continued to be an important source of water supplying industry on the banks of the Canal, but eventually an Act of Parliament in 1965 officially closed the Canal to navigation. The Canal is now owned by British Waterways who are responsible for maintaining it and are the main partners in the project to reopen the Canal.
Today the Canal is largely intact but navigation along its length is impossible due to piped road crossings and stretches infilled to allow house building. However the Canal is currently being totally reopened to navigation as a result of the Millennium Link Project and in 2001 will be open again for navigation from Edinburgh to Falkirk and, by a giant wheel that will convey boats down to the Forth & Clyde Canal, through to Glasgow.
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