A Treatise On The Principles And Practice Of Harbour Engineering

HARBOUR DESIGN. 41 “(2) Dredging a channel to a depth of 7 feet at low water from the new pierheads up to the bridge, and widening the same for a length of 700 feet in front of the new fish quay. “(3) The construction of a new fish quay, 700 feet in length. “ There is not at present sufficient quay space in the harbour for the landing and sale of fish, and the existing quays would not admit of a depth of 7 feet at low water being dredged alongside of them. “ The prominent position of Whitby gives it a great advantage for sailing boats over embayed harbours, such as Scarborough and Hartlepool, where boats often lose much time by being becalmed ; while at Whitby, when there is any wind at all, boats get it immediately outside of the pierheads. “ The position of the railway at Whitby, alongside of the harbour and at the level of the quays, is another great advantage as compared with North Shields, Scarborough, and other harbours, where fish have to be carted uphill, at great expense to the railway.” Danish Island Harbours.1 —The Danish Isles and the Peninsula of Fig. 37. —Plan of Arnager Island Harbour. Fig. 38. —Plan of Snogebœk Island Harbour. Jutland have an area of only 14,850 square miles and a shore-line of about 3274 miles. On a part, perhaps about ^th, of this length, particularly on the south coast of the Island of Bornholm in the Baltic, on the north coast of Zealand facing the Cattegat, and on the north and west coasts of Jutland, facing the Skagerrack and the North Sea, construction of harbours is rendered difficult by the littoral drift. Here the island harbours are situated. Two of these, at Arnager and Snogebœk on Bornholm, were built in a tentative way, in 1883 and 1888, whereas the third one at Hundested on Zealand was formed in 1893 by the transformation of an originally land- connected harbour. All three, shown in figs. 37-39, were built by Mr H. Zahrtmann. The basins inclosed by riprap moles are from 4 feet 6 inches to 8 feet deep, and cover areas of -27, ’2 and 1'62 acres respectively, or, in- cluding the outer basin of the latter, 2’16 acres. From the moles, open 1 P. Vedel on “ Island Harbours,” Trans. Am. Soc. C.E., vol. liv. Part A., Proc. Int. Eng. Conf., 1904.