"The Swansea Canal belongs to the Great Western Railway Company. It is a narrow canal, 16½ miles in length, and has 36 locks. The traffic has diminished ... for reasons similar to those given with respect to the Glamorganshire Canal."

Much more, however, than the provision of locks was necessitated by the physical conditions of a country naturally unsuited for artificial waterways. In some instances the canals were taken across broad valleys by means of viaducts designed to allow of the waterway being maintained at the same level; and certain of the works thus carried out were, in their day, deservedly regarded as of considerable engineering importance. The Chirk aqueduct, which carries the Ellesmere Canal across a 700-feet stretch in the Ceriog valley, and at a height of 70 feet above the level of the river, and the Pontcysyllte aqueduct, 1007 feet long, which takes the same canal over the river Dee, are spoken of by Phillips, in his "General History of Inland Navigation" (1803), as "among the boldest efforts of human invention in modern times." Elsewhere the canals had to pass along high embankments or through deep cuttings. Canal tunnels of up to three miles in length were not infrequent, though some of these were made so narrow—in the interests of economy—that they had no towing-path, the boats being taken through by men who lay on their backs on the cargo, and pushed against the sides of the tunnel with their feet. Alternatively, it was sometimes possible to avoid rising ground or deep valleys, necessitating locks, by making wide detours in preference to taking the shortest route, as a railway would do. Thus the distance by canal between Liverpool and Wigan is thirty-four miles, as compared with a distance of only nineteen by rail. From Liverpool to Leeds is 128 miles by canal and eighty by rail. These windings made the canal compare still more unfavourably with the railway when it was considered that the speed of transport on the former was only about two and a half miles an hour, without counting delays at the locks; and of these there are, between Liverpool and Leeds, no fewer than ninety-three.

But just because these engineering works had been so bold and so costly, or left so much to be desired in regard to length of route, and just because so many physical difficulties had had to be overcome, it may well have happened that when what was universally considered a better means of transport was presented, general doubts arose as to the wisdom and practicability of reconstructing, in effect, the whole canal system to enable it to compete better with the railways in catering for that through traffic for which the canals themselves were so ill adapted.

Supplementing these considerations as to the physical configuration of the country is the further fact that in the colliery districts the keeping of the canals in working order involves great trouble, incessant watchfulness and very considerable expenditure on account of subsidences due to coal-mining. In my book on "Canals and Traders" (P. S. King & Son) I have told how "throughout practically the whole of the Black Country, the Birmingham Canal, for a total distance of about eighty miles, has been undermined by colliery workings, and is mainly on the top of embankments which have been raised from time to time, in varying stages, to maintain the waterway above the level of the ground that has sunk because of the coal mines underneath." Many of these embankments, as I have had the opportunity of seeing for myself, are now at a height of from twenty to thirty feet above the present surface of the land, and in one instance, at least, the subsidences have been so serious that an embankment twenty feet high and half a mile long has taken the place of what was formerly a cutting. If the Birmingham Canal had not been controlled by the London and North-Western Railway Company, who are under a statutory obligation to keep it in good and effective working condition, it would inevitably have collapsed long ago. No independent canal company, deriving its revenue from canal tolls and charges alone, could have stood the heavy and continuous drain upon its resources which, in these circumstances, the canal would have involved; and like conditions apply to various other railway-owned canals in the north, in Wales, and elsewhere.

Concerning the Glamorganshire Canal, it is said in "Transport Facilities in South Wales and Monmouthshire," by Clarence S. Howells:[[50]] "The present owners have spent £25,000 on the canal since 1885 in an ineffectual attempt to revive its waning fortunes. One of its many difficulties is the subsidence caused by colliery workings."

Dealing with the general position in regard to canal transport in the United Kingdom, J. S. Jeans remarks in "Waterways and Water Transport" (1890):—

"The railway companies have been accused of acquiring canal property in order that they might destroy it, and thereby get rid of a dangerous rival. This is probably not the case. The railway companies are fully aware of the fact that water transport under suitable conditions is more economical than rail transport. It would therefore have suited them, at the same rates, to carry by water heavy traffic, in the delivery of which time was not of so much importance. But the canals as they came into their possession were naturally unadapted for such traffic without being more or less remodelled, and this the railway companies have not attempted.

"When we consider the enormous disadvantages under which the majority of the canals of this country now labour, the great matter for wonder is, not that they do not secure the lion's share of the traffic, but that they get any traffic at all."

If, for the sake of argument, we leave out of account all the "enormous disadvantages" here alluded to, and assume that the physical difficulties already detailed could be overcome without much trouble or great expense (though this would, indeed, be a prodigious assumption), we should still have the fact that the number of traders in the country who could hope to benefit from any possible system of internal navigation would necessarily be limited to those in certain districts, whereas the railway can be taken anywhere, and be made to serve the interests of each and every district or community in the country.

It is true that when commodities can be sent direct from an ocean-going vessel to a works situated immediately alongside a canal, the waterway may have the advantage over the railway; and the same may be the case as regards manufactured goods forwarded in the opposite direction. Of the 235,000 tons of flints, clay and other potters' materials brought into the Potteries district of North Staffordshire during 1910, no fewer than 200,000 tons, imported at Runcorn, Ellesmere Port or Weston Port, were taken by canal to pottery works located on or near to the canal banks. In these circumstances the North Staffordshire Railway Company, who also control the Trent and Mersey Navigation, cannot, as railway owners, compete with themselves as canal owners. In the case of the Aire and Calder, the physical conditions of which are exceptionally favourable, coal can readily be sent from the collieries immediately alongside the waterway to the steamers or the coal ships in the port of Goole. On the Birmingham Canal, also, the traffic between collieries and works, or between works and railway transhipping basins, on the same level, is already so considerable that no great increase could be accommodated without carrying out on the canal a widening which would be fabulously costly, and, also, wholly impracticable, on account of the great iron-works and other industrial establishments which line almost the entire twelve-mile route between Birmingham and Wolverhampton, forming, with their hundreds of private basins, the actual boundary of the canal on one side or the other. To "adapt" the Birmingham Canal to through traffic would produce chaos for the local traffic.