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4 <br />A = area in acres of each wetting furrow <br />A = W izates) x R x L = ( 18 ) x ( 19) x ( 14) _ ( IS) x LzQ x (40�- -) = O. z_- ac (.16) <br />43560 43560 43560 <br />Q= Volume of irrigation water to fulfill design (gallon per minute) <br />Q = Gross Irrigation Application x 450 x A <br />T <br />= (9) x 450 x (16) = (/a. x 450 x (, 4 -Z+ = --- LLS------------- gpm <br />(11) ( J< ) <br />450 is a conversion constant: <br />450 gpm = 1 acre- inch/hr <br />g& O. Z Z <br />SYSTEM EFFICIENCY ( maintenance, cleaning head gate, checking water, fanner needed <br />time off) ... = f as ° l (23) <br />(NRCS states numerous farmers in the Norwood area do not take a dw; off, so 100% as seen on <br />NRCS design for side roll sprinkler design that DRMS approved) <br />1': \Eng \DA'CA \WP \FLOOD IRRIGATION WORK SHEETVlood In•igation Design WorkSheetProject Name. 14rnay10wpd.%vpd <br />Attachment 2.05.4(2)(e) -7 -21 <br />