. Canadian engineer. depth al its highest stage of throefeet or less. The equipment for a wading station issmall, consisting usually of a plain stalT gauge, gradu-ated to fi-ot and hundredths, and fixed vertically to oneof the banks of the stream. For convenience a measuringline, usually a wire with tags, may be lixed permanentlyat this section. \\]ien taking the reading the engineershould stand below and to one side of the meter so asnot to cause eddies in the water. Bridge stations, because of their permanency andthe freedom of movement allowed the engineer, are muchpreferred. \ery often, ho
. Canadian engineer. depth al its highest stage of throefeet or less. The equipment for a wading station issmall, consisting usually of a plain stalT gauge, gradu-ated to fi-ot and hundredths, and fixed vertically to oneof the banks of the stream. For convenience a measuringline, usually a wire with tags, may be lixed permanentlyat this section. \\]ien taking the reading the engineershould stand below and to one side of the meter so asnot to cause eddies in the water. Bridge stations, because of their permanency andthe freedom of movement allowed the engineer, are muchpreferred. \ery often, however, more particularly inswift currents, the piers materially affect the accuracy ofthe results. When the gauge cannot be attached to apier, it is often attached horizontally to the guard-rail orfloor of the bridge, and the height of the stream is foundby lowering a weight by a chain over a pulley. It isindicated by a marker on the chain. Distances of three,five or ten feet, according to the size of the stream, are. Boat used for making Discharge Measurements ofAthabaska River at Athabaska, Alta. marked on the lower chord of the down-stream side ofthe bridge to serve as a measuring line. Frequently it is impossible to establish a permanentgauging station at a bridge. In that case the wire cableof a ferry can be utilized, or, if that is not available, apermanent wire cable is stretched across the river. Forspans of average length a galvanized wire cable ?/;-inchin diameter is safe. It is supported at each bankby means of high struts or by passing it through thecrotch of a tree. The cable is run into the ground andanchored securely to a dead man, buried at least sixfeet below the surface, or, if convenient, it is anchoredto the lower part of the trunk of a tree. A turnbuckleis inserted in the cable between the strut and anchorageto permit tightening the cable when it begins to sag. .Apermanent measuring line, usually a wire, with tags5 or 10 feet apart, is stretched across the
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