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THE COAL PORTS OF THE BRISTOL…

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THE COAL PORTS OF THE BRISTOL CHANNEL. NO. 3.-PROGRESS AND CAPACITY 1) T OF THE PORT OF CARDIFF. ITS DOCK SYSTEM. t An account has already been given of how the port of Cardiff was supplied with its docjis. The purpose of this article ia to show their dimensions, au.i the capacity of their working power. It if a fact becoming more apparent every day that the work of the shipping trade is to be done almost tntirely by means of docks. The bulk of the Dusinesa is now being performed by that means. If we take, as an illustration, threo poms, where the harbour accommodation consists almost exclu- sively of docks, nanieiy, Liverp<xu Cardiff, and Hull, we shall find that one-third of the whole dead-weight business of the kingdom is under- taken b them. If London, where the docks are being extended, and will, more and more, super- Bede"the river, be added, then more than half of the trade is supplied by those four ports. As regards the amount of work done at the docks of these specimen ports it is curious to note that at Liverpool, last year, it was 23,030 tons per acre; at Hull. 42,000 tons per acre and at Carõiff, 40,000 tons per acre. The latter port, comparing her to Liverpool; appears to be rather ovenvonced but it must be remembered that the Birkenhead docks are not used to the extent tuey might be, and they are about a third of the are? of the Whole, The kind of trade, too, is very different, as at Liverpool, much is done in goods, and hence the business requires more room and time, where- as the bulk of the trade at Cardiff is that of coa{ and iron. At the same time it must be allowed that the amount of work done at the Cardiff docks cannot much more be added to. Hence, the argument for anew dock is very strong. But to give a clear insight into the working capacity of all the docks at Cardiff, an extract from the "Refer- ence" published by the proprietors is herewith given WEST BUTE DOCK. Entrance to basin. 45 feet wide Basin 300 ft long, 200 ft wide Lock 152 ft lon^r, 36 ft wide Dock 4,000 ft long, 200 ft wide Quavage 8,800 feet „ f l,550|feet by 19 feet deep ■Uepth ot water in dock j o,450 feet by 13 feet deep Do. do. on sill spring tides, 28 ft 8.V in. Do. do. do neap tides, 18 it 85 in. There are 13 staithes for the shipment of coal. The ballast cranes (three) can discharge 100 tons per hour; other cranes (four) to lift ten tons. Graving dock. 235 feet long, 40 feet entrance, 12 feet deep. Water area of dock and basin, 20 acres. EAST BUTE DOCK. Sea Lock 220 feet long 55 feet wiJe. Basin 380" 250 „ „ Inner Lock 20:)" 47 n i J W00 „ „ 300 „ „ Dock 13300 „ 500 „ „ Quayage 9360 Depth of water in Dock 25 feet Ditto in Sill on Sea Lock, spring tides 31 ft 8y ins. Ditto ditto neap tides 21 ft 85 ins. There are 20 staithes for the shipment of coal, with the latest hydraulic machinery. Ballast cranes ifoui-) can discharge 200 tons per hour. Other cranes (four) to left 20 tons. By means of Hydraulic Cranes a new process of shinning coal exists. No coal is lowered into the hold in barrows, saving breakage and trimming. A Shear Legs to lift GO tons. Graving dock 400 feet long. 48 feet wide at entrance. 17 feet deep. Water area of Dock and Basin, 47i acres. ROATH (BUTE) BASIN. I Entrance lock, 350 feet long, SO feet wicis. Basin or dock, 1000 feet long, 500 feet wide. Quayage, 2000 feet long. Denth of water on sill tides, 35 ft. 8J: i n. ». Neap 25 ft. in. i Staithes for shipment of coal, with the latest im- provements in hydraulic machinery. Graving dock (public), 000 feet long; entrance. 60 feet wide. Ditto—Depth of water :—Spring tides, 23 ft. 8 in. Dr „ Neap 13 ft. b' in. -4maier area, 11 acres. ENTRANCE CHANNEL TO THE BUn: DOCKS. graving dock (private), 264 feet long; 45 feet width of entrance.. Do—Depth, high-waterSpring tides, 19 ft. 8*m. Neap 9it. b&in. Steam nacket harbour, with bridge and floating pontôon :-Depth, high-water,_ spring tides, 33 ft. 3 in. neap tides, 2; ft. o in. Steam crane to lift 4 tons. Gridiron. 350 long Depth, high-wat.r, sprm,, tidps 23 ft neap tides, 13 ft. Channel coal s'taithf worked by hyd^uho power Depth, high-water, spring tides, 28 ft. Neap tides, 18 ft. ,,n,' J. i Low-water pier, with floating pontoon and hydraulic lift Hydraulic crane to lift 10 tons. Peptli at high-water :—Spring tides, 43 ft. 8 in. low » 5 ft. in. high Ideap „ 33 ft. 8| in. low »> n 15 In addition to the Channel coal staithes,fother two similar ones are being erected by the Bute Trustees on the bank of the Tail river to accom- modate the coasting trade. PENARTH I)OC-K. # *■ Length of Dock vo feet Width of do 3,0 feet Water area — f fc Length of Lock fJJ Width of entrance f„„t Depth of water at ordinary Spring tides io reel Ditto at Neap tides ••• {e^t IS £ 5 Width of do 3 acres Water area feet width of entrance n »- fcx.Y Ds; t;iof water at ordinary Spring tic Ditto at Neap tides 25 feet toal drops in dock-capacity for sliipi-neiit, 150 tons per hour < ditto in bneiii-ditto ditto, 300 tons per hour FENARTH TIDAL HARBOUR. frontage on Cardiff side, belonging ^r> jeej. PT)Ttto,' Penarth side," ditto ditto 3,000 feet 10 coal staithes capacity for ship, ang^ Depth of water in berths at high water, ordmajy SPStidea ditto; N»p tides 20 feet Vessels up to S00 tons can take the ground at the bei-thg Three crane.c; for discharging ballast, &c-can i nree ~Q j01iS hour can work „ GLAMOS'JAN CANAL. Length of the canal 2;-) miles f amber of locks. ••• _n'ierv 568 feet leight at Merthyr above colliery Length of float ••• ••• 17 Depth of float for 400 feet ••• ••* g rest shelves ••• A.ver»ge width of float, about ••• Breadth at entrance to float ••• £ 1 Length of basin. 48D Width of basin (average) about Depth of water in basin, about Length of entrance lock 134s >» Width of ditto. 2SJ „ Depth of water in ditto over sill, ordinary Spring tides 18t" Water area of float and basin, about 12 acies Lineal quayage, about 2 miles •Small graving dock Branch small dock to Taff Vale Railway Branch lock,communicating with the Bute Docks. From the foregoing statistics it will be seen that Cardiff is now provided with 113 acres of floating dock room, and that some of them are capable of receiving the largest vessels in the mercantile lavy. She does her business almost exclusively >y means of docks, and as a dock pOrt" is the fourth in point of extent in the kingdom. To meet the growing requirements of the future, the trustees of the Bute Estate are armed with Parlia. sentary powers to construct another dock of 51 teres, and the Penarth Dock Company, JIld the Glamorganshire Canal Company, fcave both contemplated -oil- to Parliament for Verity to expend their avatenw. The low water pier mentioned has been a great boon in respect. There are often hundreds of veSIrels lying in Penarth Iloads &t anchor. It is essential tIlAt constant communication shoulvl be a.v?*Us.b^c. Formerly ihia could uot bo Jone, but from the law water pier boai%can ;n-oceed at any state of the tide. It wm thought that a larger passenger trade would be done when it was built, but this expectation has not yet been realised. It may be so yet, and only needs tJ..at the ports on the other side of the Bristol Channel should bestir themselves, and have similar conveniences, when constant and raxid access would be had by lueaaa of fast • learners, as oa the Clyde, the rrhmeos, the Forth, a.ü.{l the Ha^bcr. To meet such a want, a railway and igg", way have been laid to the end of the pier; waiiing-rooms and con- leniences; floating pontoon, Ol" landing stage, with vertical lift, and a lighthouse have been placed there. As the exports have exceeded the imports, a nufubsi ol vessels come with ballast. 1o meet ihia feature in the business, special provision has been made. Fur instance, there are seven steam tranea at the Bute Docks alone, four of which are capable of discharge 50 tons per hoar. The ballast is pat into railway wagons and convevod to a distaisce of two miles to be de- posited on spare land and to provide for the safe removal of the empty ships, wooden booms, weigh, hlg from 5 to 15 tons e ich, are fi^e 1 one on each jide of the vessels to keep them steady. Many of the steamers now, however, bring water-ballast, and discharge it in the lioads, so aa to be the more ready to receive their outward cargo. In consequence of the immense export of coal- about 4J million tons in 1877-a. large extent of Biding accommodation is pro vide to meet the necessary fluctuations in trado. Loa: ed wagons •re stowed in those "siding" wh<jn the supply exceeds the demand. At the Bate Docks alone ? amounts to about 16 miles in length, and is IOmetimes wholly occupied. The coal tips are on the high-level or "balance" principle at the Penarth and Weiit Bute Docks. j .4..t the Roath Rutin thev Are on the law.]&Irjj avjfc I tem, worked by hydraulic powes,^ The East Dock iB pr(wided with both plani?. The number has been showllabove. At the Ivoafch Pasin tip3 as much as 200 tons of coal per hour have been shipped, and it is often the case that a collier, either at that dock or Penarth, canload 1,000 to 1,503 tons in one day. The total shipping capacity of the Bute Docks is estimated at eight million tons per annum. This, of course, would involve a regular supply of trade and is no sound argument against providing more docks uutil the maximum be reached. The fact is, that a dock is like a shop, where the "counter-room" and "assistants" are adequate to double the amount of average busi- ness, because of the fluctuation of it, and the necessity to meet the maximum demand when it arises. At the same time the knowledge of the capacity of these docks is an encouragement to shipowners to send their vessels to them. The original "balance" tips were constructed for 10 tons-wagon and coal—but wagons have increased in size, like most other things, and the new hydraulic tips are made so as to lift 20 tons. A peculiarly brittle' coal is that of South Wales, and to avoid the excessive breakage a crane, called the" anti-breakage crane," has been successfully used. But the question, after all, in loading with despatch and in breakage, is that of "trimming." Until a more excellent plan for that can be obtained the whole power of the tip can never be reached, and the amount of exces- sive breakage, or "slack," will continue. Two minor features in the shipping proccss at the Cardiff Docks are worth notice. The first is the Hydraulic Hauling Engine, which is used for drawing the wagons on or off the coal tip?, in place of horse power, and for turning them Oil the turntab les. The second is the Portable Hydraulic Crane, and is uscl either for shipping or discharging. It is placed on a line of rail parallel to the dock wall, and can be thus moved so as to work at any hatchway, without moving the ship. It is also convenient, where it is desirable, to work two hatchways at one time. As alrsady indicated, there has always been a preponderance of export cargo tonnage over that imported but of late years the increase in im- ports has been a larger percentage than the other. Hence, the difference is lessening in extent. For instance, in 1361, roughly speaking, the import tonnage was a sixth only of that exported, having cargo. In 1871 it was a fifth, and last year a fourth. To meet, therefore, the growing require- ments of the inward business a large amount of warehouse accommodation has been added of late years at the East alld 1Vest Bute Docks. For the coasting trade, too, especially,the sheds by the side of the Glamorgan Canal have been ex- tended. At the East Dock head three magnificent warehouses, marked A, B, and C, are erected by the proprietors, and another equally extensive by the London and North-Western llailway Com- pany, whose line runs close to the dock. Another warehouse, but less imposing, by the west side of the same dock, near the head of it, has been built especially to accommodate the traders to New York. On the west side of the West Bute Dock a series of splendid stone structures have been raised, to the number of 22 (besides a flour mill and wire rope factory), and covering nearly a third of the side of the dock. They are mostly for the importation and storage of grain and "free goods." The nature of the cargoes will be seen from the following list, imported in 1877:— GOODS FP.EE OF DUTY. Iron ore. tons Pyrites of sulphur Bu i-ii t pyrites 6,6G7" Precipitate 2,107 Chrome ore 338 Silver ore 50 Other unwrought min- erals and metals £ 1,303 Manufactures of iron, £ 2,024 Pitwood H' 138,01)7 loads. Fir,hewn 31,234 Fir, sawn 70 243 oali-, heia-n 1,2.59 Staves 18 Lath wood 2,440" Other hewn v.ood 761 Wheat. 259,183 cwts Wheaten flour 91,433 Barley. 299,161 „ Oats 125,090 Maize 47,451 Beans. 14,514 Buck Wheat 360 „ Potatoes. 320,277 Onions 46,540 bushels Apples 4,597 Oranges. 22,276 Other Raw Fruit £ 5Gtf Rice 227 tons Sugar 5S0 cwta Butter 434 Cheese. 1,209 Provisions £ 7.434 Hay £2,3J6 Seed Cake £ 2;20p Esparto. 20,651 tons. Slates 855 Guano n. 800,. Rosin 4,780 cwt. Windsor Glass. 3,074 „ Stones and Gypsum £ 1,7G1 Other unmanufactured goods. 21,453 Other manufactured goods Cl. 312 GOODS BONDED. Wine 4,845 gallons. Brandy 280 Geneva. 1,127 Tobacco and cigars 14,722 lbs. There are aiso sneus lor me coasting trade to Irelaud and Scotland, and at the Roath Basin, extensive, though temporary, wooden erections have been put up to suit the live cattle trade which is springing up here irom America. In this sketch an attempt has been made to shew the area, extent, and capacity of the docks at Cardiff. Without those docks Cardiff would have been "nowhere" in the race for modern maritime business. But with them she has outstripped many other ports. They have served well the purpose of developing the mineral richeg of the county, and will do still more. Bat being built of solid material and with perpendicular walls, hating quay areas of immense extent, they are adapted to meet and foster any description of trade that may come to them.

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CARDIFF BOARD OF GUARDIANS.

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