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Show 148 height of the water. Q Through the 24 hours? A Through the 24 hours and throughout the year. Q Now, who determines the depth of the water? How is that obtained? A The depth of the water is obtained? by an engineer from the local district, from the district office, by means of soundings at gauging stations. A gauging station is a fixed point on a river, picked for several reasons, generally on a certain stretch of the river where it can be reached by the engineer at any time of the year; it should generally be near a habitation, where the gauges can be watched, and certain structures, either a cableway or a bridge, have to be built, from which the flow measurements can be made. The measurements of depth are made by soundings, and the measurements of velocity are made with a current meter at the same time that the soundings are made-- a very technical operation to determine the flow of a river. Q That is under the constant supervision of somebody? A Under the constant supervision of the district engineer; yes, sir. Q And is there a man on duty at this gauging station? A At all gauging stations there is a local resident that generally winds the clock of the recording gauge and sees that it is running and oiled, and he may possibly remove 2109 |