Holland, the land of dykes and ditches, is completely cut up into small islands by its extensive system of canals, which cross and interlace each other like the threads of some large fishing net. Owing to the level condition of the country, the construction of a canal involves but comparatively little labour and expense, and many of them are used as substitutes for public highways, while in the winter, their frozen surfaces offer convenient roads for skaters. The North Holland canal was, until recently, the finest work of its kind in Europe, and was built during the years 1819-23, at a cost of 950,000l. Since not only the surface, but the beds of many of these canals are above the level of the land, drainage is a matter of great importance, and is effected by means of windmills working pumps.
Phillips[87] speaks of Holland as being intersected by innumerable canals. “They may,” he says, “be compared in number and in size to our public roads and highways, and as the latter with us are continually full of coaches, chaises, waggons, carts, and horsemen, going to and from the different cities, towns, and villages, so on the former, the Hollanders, in their boats and pleasure barges, their breckshuyts and vessels of burden, are continually journeying and conveying commodities for consumption or exportation, from the interior of the country to the great cities and rivers. An inhabitant of Rotterdam may, by means of these canals, breakfast at Delft or the Hague, dine at Leyden, and sup at Amsterdam, or return home again before night. By them, also, a most prodigious trade is carried on between Holland and every part of France, Flanders, and Germany.” The same author declares that the 400 miles of inland navigation open in Holland in his time, yielded an average income of about 625l. per mile, which he declares to be, “almost beyond belief.” What would he have thought had he lived in our time, and seen canals producing an income of 30,000l. to 40,000l. per mile?[88]
The Haarlem Canal was constructed about fifty years ago, for the purpose of draining the Meer or lake of that name. This lake had been formed by an inundation in the end of the sixteenth century, and in the beginning of the eighteenth century it had covered an area of 45,000 acres. Seeing that the lake was gaining upon the land, it was resolved to take effectual means for draining it. This course was precipitated by two furious hurricanes, one in November 1836, which drove the waters of the lake upon the city of Amsterdam, and another in December of the same year, which submerged the lower parts of the city of Leyden. The first step incidental to draining the lake—a work which was undertaken by the Government in 1839—was to dig a canal round about it for the reception of the water, and to accommodate the great traffic which had hitherto been carried on by its means. This canal was made 38 miles in length, 130 feet wide on the west side, and 115 feet on the east side of the lake, and 9 feet deep. All the inlets into the lake, were then closed by large earthen dams; and various works were executed to facilitate the flow of water into the sea. These preliminary works occupied till 1845. To give some idea of the magnitude of the undertaking, it may be mentioned that the area of water enclosed by the canal was rather more than 70 square miles, and the average depth of the lake was 13 feet 1·44 inches. The water had no natural outfall, being below the lowest possible point of sluiceage, and, including rain water, springs, &c., during the time of drainage, it was calculated that probably 1000 million tons would have to be raised by mechanical means. After drainage, too, the site could only be kept dry by mechanical power, so that the annual drainage might amount to 54,000,000 tons, to be raised on an average 16 feet, and it might happen that as much as 35,000,000 tons of that amount would have to be raised in one month.
The North Sea Canal was constructed for the purpose of facilitating the navigation of the Zuyder Zee, which, by reason of its numerous shallows, was very intricate and difficult, and in order that vessels might avoid the Pampus—a bank that rises where the Y joins the Zuyder Zee, and formerly compelled large vessels to load and unload a part of their cargoes in the roads. These obstacles frequently detained vessels for as much as three weeks.[89]
M’Cullough spoke of this canal as “the greatest work of its kind in Holland, and probably in the world.”[90] It was begun in 1819, and completed in 1825. The length of the canal is about 50½ miles; the breadth at the surface, 124½ English feet, and at the bottom 30 feet, while the depth is 20 feet 9 inches. It is a tide-level canal, and is provided with two tide-locks at each end. Intermediately, there are two sluices, with flood-gates. The locks and sluices are double. The canal is crossed by about eighteen drawbridges. The cost of the undertaking was about million sterling.
At the further end of the canal, at Niewdiep, a harbour was constructed, which has been very much frequented by the shipping of Amsterdam. About eighteen hours were formerly occupied in towing ships from Niewdiep to Amsterdam.
The Amsterdam Ship Canal.—The Amsterdam Ship Canal, designed by Mr. Hawkshaw, and Heer J. Dirks, of Holland, is a gigantic example of engineering compressed within a limited extent. The burgesses of Amsterdam had spent millions in improving the access to that great commercial port—first, on long previous operations in the Zuyder Zee, and, subsequently, on the North Holland Ship Canal, which stretches nearly due north from their city to the Helder, between which point and the Texel Island opposite is the entrance from the North Sea, which was then the only available channel for large vessels.
The exigiencies of their trade calling imperatively for further improvements, the engineers furnished them with the design for a new ship canal, which reduces the navigable distance to 15½ miles, on a course about west from Amsterdam to the North Sea, available for larger vessels than formerly entered the port—and has provided a new harbour on the coast, with an area of 250 acres, bounded by breakwaters formed of concrete blocks set in regular courses, with 853 feet of entrance between the pier heads, and 26¼ feet minimum depth of water. The width of the sea canal is 197 feet at the surface, and 88 feet at the bottom; minimum depth, 23 feet; the locks are 59 feet wide, and of proportionate length.
There are three locks or entrances at the north end of the canal from the new harbour. Eastward, and below the city and wharves of Amsterdam, there is an enormous dyke to shut out the Zuyder Zee, pierced with three locks, besides sluices. These are built upon such a lake of mud as to require nearly 10,000 piles in their foundation. Thus the canal is approached by locks at each end, not for the purpose of locking up, but for locking down, as the surface water of the canal has to be kept twenty inches under low-water mark. To accomplish this, in addition to the locks and sluices, that can only avail at low tides, pumping power was required at the dyke, which bars out the Zuyder Zee. The three large centrifugal pumps by Messrs. Eastons, Amos, and Anderson, were constructed to lift together 440,000 gallons of water per minute. The works on this canal took nearly ten years to complete. They included the construction of branch canals to the several towns and ports on the borders of the lakes, which, although of smaller sectional area, exceeded the sea canal in their total extent. Mr. Vignoles, in his Presidential Address to the Institution of Civil Engineers,[91] from which most of the above particulars are taken, has stated that the Amsterdam Ship Canal resembled the Suez Canal, in passing through large muddy lakes, similar to Lake Menzaleh. (See Suez Canal).
The ship canals communicating with Rotterdam are described by a recent writer[92] on the subject as follows:—
1. The Voorne Canal running from Helvoetsluis through the island of Voorne to the river Maas. The resolution of March 9th, 1880, resettled the police regulations for this route; the maximum dimensions of vessels using it being—length, 110; beam, 13·70; draught, 6 metres.
2. The Niewe-waterweg, or direct entrance from the North Sea to the Maas, which is without sluices, and is cut through the Hoek van Holland, thus forming a new outlet to the Maas.
Besides these approaches, there is another route to Rotterdam, to which great attention has been paid of late years, but the railway bridge across the river at Rotterdam causes a certain inconvenience to vessels using it. Vessels coming from the sea by the Hollandschdiep, enter the narrow passage of the Kil near the great Moerdyke railway bridge, and passing Dordrecht, the Maas is reached above the Rotterdam railway bridge. The Nieuwe-Haven, just above this bridge, is a most convenient port for small steam-yachts visiting Rotterdam.
There are two other important ship canals, giving access from the river Schelde to the inland waters of Holland:—
1. The Walcheren Canal, about seven miles long, from the new port of Flushing to Veere, which place, formerly known as Campvere, was a free port of the Scotch, who had a factory or trade station there for 300 years, from the year 1506. The maximum dimensions for vessels using this canal are:—Length, 120; breadth, 19·75; and draught, 7·10 metres.
2. The South Beveland Canal, from the West Schelde at Hansweert to the East Schelde at Wemeldinge, is five miles in length. The regulations of this canal, fixed by the resolution of May 28th, 1880, allow vessels of the following dimensions to use it, viz. length, 100; breadth, 15·75; draught, 7·10 metres.
The former of these two canals is not much used, but there is a great traffic of the large Rhine arks, and the inland steam barges and sailing vessels of Holland, going to and from Antwerp, Brussels, Ghent, and other towns of Belgium. The locks, like the others in the more important canals, take in thirty to forty of these vessels at once, all masters having to show their papers before passing. These ship canals are all State property, and are under the management of the Minister of the Waterstaat, Trade, and Industry. Many of the smaller inland navigations are under State control, but others belong to the communes through which they pass. The water-level, which is so all-important in the Netherlands, is regulated by the Amsterdam mark, called the A.P. (Amsterdamsche Peil).
The following navigations, with some others, are also regulated by police rules, fixed by resolutions of the State:—
1. The Afwaterings Kanaal, from the Noordervaart and the Neeritter, near Venlo, for vessels—length, 24; breadth, 3·70; draught, 1 metre. The use of steam is forbidden.
2. The canalised river Ijssel, from the river Lek, opposite to Ijsselmonde, to Gouda, whence there is canal communication with the river Amstel, to Amsterdam, and also by the old Rhine, viâ Leiden and Haarlem, to Spaandam, to the North Sea Canal. There is a great traffic in the former of these two routes, there being always a great collection of craft at the sluices at Gouda, waiting their turns to pass. Large and improved locks are said to be urgently required at this place. The depth of water on this route is at least six feet.
3. The Keulsche Vaart, from Vreeswijk, on the river Lek, viâ Utrecht, the Vecht, and Weesp, to the river Amstel and Amsterdam. Vessels of a breadth of 7·50 metres, and draught of 2·10 metres, can use the route. The sluices take in the very long Rhine craft. The pace allowed for steamers is 130 metres a minute for those of 1·50 draught, to 180 a minute for those of 1 metre draught.
4. The Meppelerdiep, Zwaartsluis to Meppel, for vessels of length, 60; breadth, 7·80; draught, 1·80 metres.
5. The Drentsche, Hoofdvaart, and Kolonievaart, from Meppel to Assen, for vessels drawing 1·60 metres, between Paradijssluis and Veenebrug; in other parts vessels of only 1·25 metres are allowed.
6. The Willemsvaart, from the town canal at Zwolle to the river Ijssel, by the Katerveer, for vessels of the following dimensions—length 100, breadth 11·80, and draught 3 metres.
7. The Apeldoorn Canal, from the Ijssel at the sluis near Dieren to the same river at Hattem, for vessels of the following dimensions—length 30, breadth 5·90, and draught 1·56 metres.
8. The Noordervaart, between the Zuid Willemsvaart at sluis No. 15 and the provincial canal at Beringen, in the commune Helden, for vessels having a length of 51, a breadth of 6, and a draught of 1·50 to 1·65 metres.
9. The Dokkum Canal, from Dokkum (in Friesland) to Stroobos, and the Casper Roblesdiep or Kolonelsdiep, being the inland route from Friesland to Gröningen.
A deep-water canal communicates between Gröningen and Delfzijl, in the estuary of the river Ems, whereby the inland navigation of Germany may be entered, and, finally, the Baltic.
The Elbing Highland Canals.—This system of canals, constructed between the years 1844 and 1860, connects the group of lakes around Mohrungen and Preussische Holland, at a height of about 328 feet above the Baltic, with the Drausen Lake, whence flows the river Elbing, emptying itself into the Frische Haff, on the Gulf of Dantzic. The whole length of the canal navigation and branches is 123½ miles, of which 28 miles is artificial, and the remainder lake and stream.
The Puniau lakes are situated at a distance of 10 miles from, and its waters were originally at a level of 343 feet 9 inches (104·8 metres) above, the Drausen lakes. When the canal was first constructed, the water-level of the Puniau lake was lowered to the extent of 17 feet 5 inches, thereby reducing the difference in level between the two lakes to 326 feet 4 inches. Commencing from the Drausen Lake, the canal continues level for a length of 1¼ miles, and in the next 2·17 miles, rises a height of 45 feet 3 inches. This difference of level was surmounted in the first instance, by five locks, which have recently been abolished and replaced by an inclined plane. In the following 4·66 miles the remaining height of 281 feet is attained by four inclined planes.
The cost of original construction was 212,325l. (4,246,500 marks), and, assuming it to have been spent entirely upon the artificial portion of the canal navigation, which is 28 miles in length, would amount to 7,583l. per mile (94,376 marks per kilometre). Of this outlay 70,000l. was expended on the four inclined planes, exclusive of the earthwork, which latter cost 27,000l., or an average of 24,250l. for each incline. The total height surmounted by these five locks and the four inclined planes being 326⅓ feet, the cost of each foot of rise for the whole length of the canal amounts to
The cost of maintenance of the whole system (including the lake portion) of the canal and works between the years 1861 and 1875 averaged annually 27l. 2s. per mile for the lake portion, and 120l. 4s. per mile for the artificial canal portion.
The Dutch canals, like those of Belgium and Germany, provide exceptionally low transport. The butter of Friesland is conveyed by canals in small boats to the home markets, whence it is carried twice a week to Harlingen and shipped to London and other large places of consumption.
One of the most remarkable features in the landscape of Holland is the large number of windmills that are everywhere to be seen. In one province not more than 60 miles long, there are said to be more than 200 of these primitive appliances. The windmills are largely employed in spring time to drain the water from the low lying lands and raise it into the canals, but they are “contrived the double debt to pay” of drainage and agricultural work.
The Dutch canals, which are for the most part elevated above the surrounding country, in order that they may the better carry off the water that inundates the land, are provided with strong dams or banks, which it is the care of the inhabitants to keep in good order. A system of militia was long maintained for the purpose of keeping the banks in repair. The ringing of a bell, or some other signal, brought the members of this force together, and, when the waters threatened danger, every man was found at his post, ready to repair any possible damage to the dykes. It is still the custom to assign to every family a certain length of embankment, which they are required to maintain.
It is, of course, essential that a system of water communication so complete and so important to the well-being of the country as that of Holland should be subject to very strict regulation. There are two principal sets of regulations—the first adopted on the 5th February, 1879, for the Government canals generally; and the second adopted on the 6th August, 1880, applying specially to the North Holland Canal. There is also a series of special regulations for the Walcheren Canal, which communicates between Flushing and Veere. These regulations have been translated into English, and may be easily acquired by any one who desires to possess them.[93]
FOOTNOTES
CHAPTER X
[87] ‘History of Inland Navigation.’
[88] The Suez Canal gives this return.
[89] M’Cullough’s ‘Commercial Dictionary,’ Art., Amsterdam.
[90] M’Cullough’s ‘Commercial Dictionary,’ Art., Canals.
[91] ‘Proceedings,’ vol. xxix., p. 289.
[92] Report of the Conference on Inland Navigation at the Society of Arts, 1888.
[93] They are appended to a work which has recently been published, entitled ‘On Dutch Waterways,’ by G. C. Davies.