The Archive · 1908

DREDGING WORK, CONTRACT Xo. 11

During the quarter two strong and capacious bucket dredgers, the donia and Rhenania, arrived from Holland in tow of sea-going tugs. One hopper suction dredger, the Cyclop, made the voyage under its own steam arriving about the same time. One more bucket dredger and another suction dredger of the same capacity left Amsterdam for Shanghai on December 15 last. Actaal work was commenced by the Colonia on November 19, 1907 by the Cyclop on December 13, 1907. by the Rhenania on December 14, 1907 The Colonia was set to work in Junk channel near upper Gough [slond dredging channel from there downwards about 250 feet wide and fifteen feet deep at low w The Rhenaula started work on the edge of the Junk channel bank to increase the width of the channel there to over 800 feet from the normal line. Working her way- downward this dredger follows the other one so that the first cutting through the Junk channel shallows will be about 500 feet wide and fifteen feet deep at low water. A wider and deeper cutting through the Junk channel shallow would of course be much better, but it would cost much time during which the aid of flood and ebb currents in' maintaining and increasing the depth along the new route dredged as measured in barges amount-could not be expected. The matter

to cable yards. by the Colonia during November 10,316- during 80,525 by the Rhenania daring De-comber assesses 36,180

Total cubic yards...127,021 of this total 71,777 cabio yards were pumped by the Cyclop on upper Gough Island and 55,244 cubic yards dumped in mass between the cri works and on the zinkstuks. The barges used for transport of dredged matter hold on an average 270 cubic yards and it taker the Cyclop fifteen to twenty-five minutes to pomp the whole load—within stream of water—on to Gough Island, where it settles over a wide aren of land till recently awash at high tide. Pamping on shore 80 close to the dredger greatly facilitates the progress of the work because it can be done even on dark nights when

Text read from the printed page and cleaned; old type leaves the occasional error.

Your account