Service road and dowla
SERVICE ROAD AND DOWLA

Service road and dowla

SERVICE ROAD AND DOWLA A service road is provided usually on the left bank of the channel. In case of very small channel i.e. minor, it may or may not be provided. The top width of the bank carrying service road should not be less than 5 m. According to CWPC minimum road width should be 61 m. On large canals service roads may be provided on both the banks. Service road level should be 50 cm to 1 in above the F.S.L. depending upon the size of the canal. A Dowla is provided along the service road, separating service road from berms. This is provided as a measure of safety. Dowla is an earthen bond 50 cm high and 50 cm wise at the top. The side slope of Dowla is 1.5: 1. It also prevents erosion of the slope due to rain. LAND WIDTH The width of land,…

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