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Show CURVE IN IRRIGATION DITCH Should Be Moderated at Cleaning Time Rock Is Most Convenient for Making Wing Dams. Both large and small Irrigation ditches should have the curves moderated mod-erated at cleaning time. This may, however, be done year after year with but little result if some moans is not taken to keep tbe current from building up and cutting out at the old places. When there is a heavy deposit de-posit of sediment on a curve a small wing dam should be placed on the opposite op-posite bank some distance higher up to keep the current both from cutting in there and to allow it to deposit sediment and build up instead of scouring that side of the ditch. The current will then infringe on the place where it formerly deposited, making a clear channel much more nearly in a straight line. Rock is the most convenient con-venient for wing dams, but brush and a bunch of old w-ire and a few stakes will serve, or, failing these, gunny sacks filled with dirt. Work with the water and make it work with you is t li e economic way. |