thumb|Liskeard and Looe Union Canal
The Liskeard and Looe Union Canal was a broad canal between Liskeard and Looe in Cornwall, United Kingdom. It was almost long and had 24 locks, and it opened progressively from 1827. The engineer was Robert Coad.
Its primary purpose originally was the carriage of sea sand and lime to improve the acidic soil of agricultural lands, but when mineral deposits on Caradon Hill were exploited, it benefited considerably, carrying the mineral down to Looe Harbour. The trade increased so much that a railway—the Liskeard and Looe Railway—was built alongside its course by the Canal Company, and the canal itself gradually ceased to be navigable.
General description
The canal started from a point on the tidal East Looe River just below Terras Bridge, about a mile (about 1.5 km) above Looe bridge. When the railway branch line was built, a bridge over the canal was made, and this bridge can still be seen, showing the alignment of the canal at its lower termination.
The canal ran broadly north, following closely the course of the river itself, for a distance of , terminating at Moorswater, in the valley to the west of Liskeard. This involved a considerable climb, of over its length, and there were 24 locks. The canal ran on the east side of the River, except between a point below Plashford Bridge to near Landreast bridge, The present day railway branch line closely follows the route of the canal.
Moorswater was chosen as a feasible terminal because of its altitude—below Liskeard town—and proximity to the agricultural lands the canal was built to serve. Roads for onward transport were built, eastward to Liskeard itself and northward to Highwood.
There was a basin at Moorswater, located in the area near the present-day railway level crossing, close to the point where Old Road crosses under the A38 main road. A reservoir was built immediately north of the basin area.
It was designed for 20 tonne barges; water supply was from the upper reaches of the East Looe River and the Crylla.
When the railway line was built in 1860, the canal gradually fell into disrepair, and is shown as "disused" on 1882 Ordnance Survey maps, although the short southern section to Sandplace continued in use for several years
Priestley, published in 1831, described the canal:
<blockquote>The Liskeard and Looe Canal commences at Tarras Pill, and proceeds from thence in a northerly direction to the parish of Liskeard terminating at Moorswater, ] above the level of the sea. The distance which it passes over is five miles and seven furlongs, [9.5 km] and in its course there are twenty-five locks. ... There is a short branch of about a mile in length to Sand Place.</blockquote>
Priestley incorporates a number of inaccuracies into his description: he has taken the number of locks from the authorising act of Parliament; in fact there were twenty-four. There was a wharf at Sandplace (Sand Place) but it was immediately adjacent to the main line of the canal; Messenger points out that a quay was dug into the river bank at Sandplace to serve a kiln, and Priestley was misled into thinking that this was a branch of the canal; actually it was the main river. The vertical interval he quotes may be due to the definition of "sea level" at the time; in any case the lower end of the canal joined the river some distance above the sea.
Origins
thumb|Ruined limekiln at Sandplace; when the canal opened limekilns opened at Moorswater and lime by-passed SandplaceAgricultural land around the Looe valleys was considered to be of high quality, but the acidic soil required annual improvement with lime. Traditionally the limestone to prepare this had come from the Plymouth area by coastal shipping to the East Looe Valley where it was burnt in kilns to make the lime. While the coastal shipping element of the journey was straightforward, even main roads were in a primitive condition; for example:
<blockquote>Despite its grand title, it would seem that the 'Royal Cornish Way' (today's A30) was little better than a muddy cart-track by the beginning of the 18th century. In places it may well have had no defined edge or surface at all, leaving travellers to struggle as best they could in mist or darkness.</blockquote>
To get to Liskeard above the navigable river, the means of transport was on the backs of horses: the first wheeled wagon was introduced into the Liskeard district in 1790. As late as the 1830s, pack horses and mules were the general means of transport for goods throughout the county, once off the turnpike roads.
The idea for a canal to Liskeard was first investigated in 1777 when Edmund Leach and "a gentleman from Liskeard" proposed a canal which would run between Banka Mill, west of Liskeard, and Sandplace, to the north of Looe on the East Looe River. It would have been a contour canal, with three reaches connected by "machines"—evidently inclined planes. At the time no canal inclined plane had been installed anywhere in the world: the first actually installed on a canal was on the Ketley Canal in 1788. The project was estimated to cost £17,495, which would be recouped in seven years, based on expected income, but the scheme was not progressed.
After at least one other abortive proposal, a local solicitor Peter Glubb convened a meeting on 2 August 1823 in Liskeard to agree the way forward. After a second meeting at East Looe on 9 August, the engineer James Green was asked to present proposals for a canal, a railway or a turnpike road to link Looe to Liskeard. He swiftly presented his views, on 30 August, recommending a tub-boat canal, suitable for four-ton boats in trains (i.e. connected groups). The rise of 180 feet in in 10 km) threatened water supply difficulties if negotiated by locks, so Green repeated the earlier proposal for two inclined planes.
A subscription list was quickly filled, but soon this proposal too stalled, due to strong opposition from interests in Lostwithiel and Fowey, and "weakness of the proprietors in a pecuniary point of view and other insuperable obstacles". The following year the plan was revived, this time for a canal with locks. In order to appease John Buller, a substantial local landowner, the canal would have a "Towing Path of sufficient width for Gentlemen's Carriages". The committee needed Buller's support to aid the passage of the bill through Parliament.
Green prepared plans for a bill, and the necessary act of Parliament, the (6 Geo. 4. c. clxiii), was obtained on 22 June 1825, but after Green's departure, the proprietors asked Robert Coad to design the route in detail. The act created the Liskeard and Looe Union Canal Company, with an authorised capital of £13,000 in shares of £25, and authority to borrow a further £10,000 on mortgage if required. The act gave powers "for making and maintaining a navigable canal from Tarras Pill, in the parish of Duloe ... to or near Moorswater, in the parish of Liskeard, and for making several Roads to communicate therewith". It also allowed feed water to be taken from the River Looe and the "Crylla Rivulet"; but there were restrictions on the latter, so "that no injury may be done to the navigation of the Fowey, of which river the Crylla is a tributary stream". An engineer could be appointed by the Mayor of Lostwithiel to monitor compliance with this obligation. A road had to be made from Moorswater into Liskeard at Dean Well, at a cost of £1,200, completed in 1829. Dean Well was at the north-western extremity of Dean Street, so the road referred to would appear to be "New Road". Traffic immediately transferred to this road from the steep and inconvenient turnpike road ("Old Road") and the canal company demanded a subscription for maintenance from the Turnpike Trustees. Users of the Canal Company's road were subject to tolls.
About 1835 a section of road from Looe Mills to Highwood was constructed by the canal company. Highwood is a little less than a mile (about 1 km) north of Looe Mills, on the Turnpike Road north-west of Moorswater. The new road gave access to Highwood from the canal, using the Turnpike Road from Moorswater to Looe Mills.
Operation
The canal vastly increased the facility of bringing lime and sea sand to the agricultural hinterland above Liskeard; in addition coal was brought for lime burning and for domestic use. Prices of these commodities fell considerably; however other traffics—particularly downstream traffic which would have generated return loads—were disappointing. Lime was burnt at Moorswater and elsewhere on the higher reaches of the canal, leading to the failure of kilns at Sandplace, which lost trade.
The company watched expenditure carefully, but managed to pay a dividend of 6 per cent in 1830 and 5 per cent thereafter for most of the canal's life. Income was generally allocated to capital expenditure. Net annual profit seems to have been in the region of £300 to £400 during this period. Considerable attention was given to improving the terminal facilities at Moorswater, as the trade increased. In 1832 a quay was constructed, and a tramway (referred to as a "railroad") was constructed alongside it. William Hodge and John Lyne had lime kilns on the west and east side of the canal head respectively, and they had simple plateways connecting the basin with the kilns by inclined planes powered by waterwheels. Hodge's had a gauge of 2 ft 6 in gauge (760 mm), was supported by a series of pillars and used an undershot wheel. Lyne built five kilns in 1831, and water from a pond to the north of the works was channelled along a culvert to power an overshot wheel.
By 1835 the poor condition of the canal works was again giving cause for concern, and contract arrangements were put in place to rectify the situation. However, the unsatisfactory state of affairs was slow to be rectified, and complaints about the conditions and measures put in place by the directors continued to dominate the minute books until at least 1851. From 1842 the Company became concerned at the gradual decline in usage of the canal and of income. This was due to a general agricultural depression, and also competition from St Germans and Lerryn (on an arm of the River Fowey); the Company repeatedly reduced dues on the canal.
Mineral extraction on Caradon
Copper ore had been discovered on Caradon in 1836, and as the volume of extraction grew, it had been taken to St Germans and elsewhere for onward transport. From 1839 granite too began to be seriously quarried at the Cheesewring. Moving the minerals by pack horse was expensive and inconvenient, and the Liskeard and Caradon Railway was promoted to bring the ore to Moorswater; the Canal company made room at their terminal for the railway. The railway reached that place in 1846, on 8 March, from when the ore was taken to Looe on the Canal.
Notes
References
Bibliography
See also
- Canals of Great Britain
- History of the British canal system