Side slope Canal

SIDE SLOPE The side slope of the canal depends upon the type of soil. The canals in alluvial soils are designed assuming a 1/2 :1 side slope, irrespective of the actual initial side slope. It is assumed that after the due course of a run, the canal section would ultimately acquire a 1/2: 1 slope. This happens because silt gets deposited on the berms. Had section been designed with 1/2: 1 slope initially, the section would be reduced in due course of time due to silting and the section remaining would be inadequate. As per the recommendation of the Central Water. Power Commission (C.W.P.C.) the side slopes for various soils should be given in Table 19.2. BERMS It is a narrow strip of land, left on either side of a channel at G.L., between upper edge of the cut and the inside toe of the bank. The width of the…

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