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Updated: June 10, 2025
According to Arthur Young, on the lower Po, where the surface of the river at high water has been elevated considerably above the level of the adjacent fields by diking, the peasants in his time frequently endeavored to secure their grounds against threatened devastation through the bursting of the dikes, by crossing the river when the danger became imminent and opening a cut in the opposite bank, thus saving their own property by flooding their neighbors'. He adds, that at high water the navigation of the river was absolutely interdicted, except to mail and passenger boats, and that the guards fired upon all others; the object of the prohibition being to prevent the peasants from resorting to this measure of self-defence.
One little dot of an Island, with six houses on it, near the Embden shore, is all that is left. Upon this Dollart itself there is now to be diking tried; King's Domain-Kammer showing the example. An example of a convincing nature; which many others, and ever others, have followed since; to gradual considerable diminution of the Dollart, and relief of Ost-Friesland on this side.
The frequent changes of channel and mouth in the deltas of great rivers are by no means always an effect of diking. The mere accumulation of deposits in the beds of rivers which transport much sediment compels them continually to seek new outlets, and it is only by great effort that art can keep their points of discharge pproximately constant.
On narrow theatres, new forests have been planted; inundations of flowing streams restrained by heavy walls of masonry and other constructions; torrents compelled to aid, by depositing the slime with which they are charged, in filling up lowlands, and raising the level of morasses which their own overflows had created; ground submerged by the encroachments of the ocean, or exposed to be covered by its tides, has been rescued from its dominion by diking; swamps and even lakes have been drained, and their beds brought within the domain of agricultural industry; drifting coast dunes have been checked and made productive by plantation; seas and inland waters have been repeopled with fish, and even the sands of the Sahara have been fertilized by artesian fountains.
In the West it would probably not even be dignified with a regular name, and in the East it would be of so little importance that the local congressman would not ask an annual appropriation of more than half a million dollars for the purposes of dredging, deepening and diking it.
We feel in closer contact with the world of facts when he enumerates the works of peace for the prince: the cleaning of towns, building of bridges, halls, and streets, draining of pools, shifting of river-beds, the diking and reclamation of moors.
Indeed, although the confinement of swelling rivers by artificial embankments is of great antiquity, I do not know that the defence or acquisition of land from the sea by diking was ever practised on a large scale until systematically undertaken by the Netherlanders, a few centuries after the commencement of the Christian era.
The space I can devote to such operations will be better employed in describing the latter, and I content myself with the simple statement I have already made of the quantity of worthless and even pestilential land which has been rendered both productive and salubrious in Lincolnshire, by diking out the sea, and the rivers which traverse the fens of that country.
An equable flow of this stream is impossible. It will always be subject to these extremes. Nothing but an extensive method of filling or diking is likely to prevent the inundation of cities and villages that are not seventy feet above low-water mark, with attending suffering and destruction of life and property. All Southern rivers are liable to like extremes.
Muddy Ems, bickering with the German Ocean, does not forget to act, if Parliamentary Commissioners do. These dikes, 120 miles of dike, mainly along both banks of this muddy Ems River, are now water-tight again, to the comfort of flax and clover: and this is but one item of the diking now on foot.
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