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Show (; 104 at ri^it angles, with tho result that a mi a ol the fields are ruined by gullies extonllng down the hill? sides. Tills system requires oven mors ooroful watching to prevent trouble than the flooding method.. The land must also be leveled In the plane of the corrugations to remove humps and hollows, otherwise tho soma difficulties will result, as appear with an improperly lovoled basin systoia. Kethods Used On The Uintah Project:- On the Uintah r'rojact and throughout northeastern Utah, tho furrow method, erroneously called tho corrugatad method, is employed. It Is somewhat like that method but the furrows are much larger, six or eight ir^has deep .and from t^ao to throe feet apisrt. The method for successful application raquirea rather a nice adjustment of the irrigation head or vory caraAil irrigation to prevent waste, both in percolation and run-off, or d.aaago by erosion. Too larre an irrigation head will rash tho land and waste at the loner and o f tha fieldr while too small a head will servo only to saturate tha upper end of the flaLd, while the lower end will still be dry. i'he seriousness of tho conditions varies with tho length of the farrows. With oorrfcinacu3 application of a small head, the water 7.111 finally reach tho end of the forrov., but 104 |