Journal . O WINNING OF TIDAL LANDS IN BRITISH GUIANA. 193 On the Clonbrook, Lusignan and other sections of the coast,the groynes have built up the foreshore at a rapid rate. In frontof the new Lusignan sea-wall the foreshore has built up anaverage of 3 ft. 6 in., and to a vertical height of 5 to 6 ft., inwhat were formerly the most eroded portions ; while in someparts of the Clonbrook section, where in the spring of 1917 rapiderosion was taking place, and where part of the public road waswashed away, and the balance threatened with entire destruction,we now find the foreshore built up to a hei
Journal . O WINNING OF TIDAL LANDS IN BRITISH GUIANA. 193 On the Clonbrook, Lusignan and other sections of the coast,the groynes have built up the foreshore at a rapid rate. In frontof the new Lusignan sea-wall the foreshore has built up anaverage of 3 ft. 6 in., and to a vertical height of 5 to 6 ft., inwhat were formerly the most eroded portions ; while in someparts of the Clonbrook section, where in the spring of 1917 rapiderosion was taking place, and where part of the public road waswashed away, and the balance threatened with entire destruction,we now find the foreshore built up to a height of 2 to 3 ft. above. Fig. 15. Reinforced Concrete Double Sluice in Courseof Construction (Rack View). the roadway. In May, 1919, the author reported to the OfficerAdministering the Government that the beneficial result hasfar exceeded what I anticipated when making my reports on theeast and west coast of Demerara, and I know of no foreshore inEngland or elsewhere where groynes have so rapidly accumulatedmaterial as they have done on the east and west coast. BetweenKitty and Plaisance on the east coast of Demerara the existenceon the foreshore of stone wave-screens and other remains of theformer sea defence work has, to a large extent, prevented thegroynes rapidly building up the foreshore, but in all place s wheresuch screens and other structures had been entirely removed thegroynes already constructed have done remarkably LM-od workin building up the foreshore. 194 WINNING OF TIDAL LANDS IN BRITISH GUIANA. Some difficulty has been experienced in keeping the groynesin a water-tight condition and preventin
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