| Show CHECK DAMS IN GULLIES To get bet the best results fromcheck from fromcheck fromcheck check dams in gullies tops of dams should be low 10 enough in the middle and high enough at the ends ende to carry cart the runoff water ater af- af after after af after ter heavy lams rains without over ocr flow flow- flowing flowing ing mg gully banks binks or washing soil around ends ende of dams ca says s engIn engineers of the Utah States Depart Depart- Department ment t- t ment of Agriculture If l dams are arc too high the cairy- cairy ing cairy-ing m- m capacities of gullies are aie al e leduc leduc- i educed ed and overflow their banks and washes ashes around the ends o of the dams dam and ind can an fOI m new gullies down the slopes parallel to the old ones Where dams areVa are yva Va the end ends should extend farenough far farenough farenough enough into the gully banks to prevent water atel seeping mound around the dams and washing away aay a ay the sides I of gullies Foundations of dims ms should ex cx extend extend I tend far enough below the bottoms of the gullies so that c pressure will sill not force the rate water ater r and under the dams to undermine andI I f of gullies d destroy troY them The floors floor shoes should be pared ro at the loner lo sl of the dams for sufficient length and width to prevent inv nv erosion I or undermining of the dam dams by bywater bywater bywater water over OHr the clest crests built gullies to Dams are in m cause then theu filling with sediment carried by runoff and to When gullies m in check soil cultivated fields are filled farmers labor in m cal i much time and save 3 e tl atm and ind harvesting crops ed gullies in pasture lands ate danger of accidents to grazing amm us ils lis Temporary dams usually are made of materials found on farms I such as stakes brush straw lo logs and loose looe rock Woven wire sire Ire is also used Most 1 temporary dams are arc arcI I I porous when hen first built but the I II I spaces gradually fill with Ith trash and soil brought down by the wa Va Vater water ter dams are built of earth masonry and concrete The Tho bureau of A Agricultural Engineer Engineering ng mg at Washington can supply ad suggestions foi for constructing construct- construct I m- m dams da n gullies |
