SCS National Engineering Handbook

0.25 Intake Family 0.60 Depth curves 004 LEVEL BORDER 020 Efficiency 070 Time curves 200 Efficiency 200 L/E curves 30 Depth 30 Length 40 Stream 40 Stream size 600 Depth curves application Fm application minutes average depth BORDER IRRIGATION Depth BORDER IRRIGATION DESIGN border length border ridges border strip width cfs cfs cfs CHART n curves 20 curves E=50 curves E=95 deep percolation Depth curves 0.50 Depth curves 500 depth of application Depth of flow Efficiency 15 20 end blocks Family 1.0 Fn Feet per foot feet per second flow d₁ feet flow depth GRADED BORDER IRRIGATION gross depth guide borders intake characteristics Intake Family 1.0 IRRIGATION DESIGN CHART Irrigation slope irrigation stream L/E curves 020 Length 100 feet length of run LEVEL BORDER IRRIGATION low intake rate Maximum non-erosive stream non-sod crops 002 Q cfs Qu cfs roughness coefficient runoff Stream size curves Stream size Q T₁ Table values