Waterways and Water Transport in Different Countries by J. Stephen Jeans
9. _The Dokkum Canal_, from Dokkum (in Friesland) to Stroobos, and
829 words | Chapter 92
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 212,325_l._ (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 7,583_l._ per mile (94,376 marks per kilometre). Of this
outlay 70,000_l._ was expended on the four inclined planes, exclusive
of the earthwork, which latter cost 27,000_l._, or an average of
24,250_l_. 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
212,325_l._
───────────── = 650_l._ 12_s._
326·33_l._
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 27_l._ 2_s._ per mile for the lake portion, and
120_l._ 4_s._ 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:
[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.
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