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<br />Table 7-7-1 Summary of Ditch Requirements (continued) <br />Ditch Number Discharge Slope Minimum Minimum Other References <br /> (cfs) (%) Depth Top Width Specifications <br /> (feet) (feet) <br />3Nc 7.19` 34' 0.31 7.88 Trapezoidal', C:\SEDCAD3\CR7\PND3A20, SEDCAD+ RIPRAP <br /> riprap° CHANNEL DESIGN Ditch 3Nc <br />3N1 1.15 2 0.73 4.38 Triangular' C:\SEDCAD3\CR7\PND3A19,SEDCAD+ERODIBLE <br /> CHANNEL DESIGN Ditch 3N1 <br />3N2 2.21 5 0.76 4.57 Triangular' C:\SEDCAD3\CR7\PND3A19, SEDCAD+ERODIBLE <br /> CHANNEL DESIGN Ditch 3N2 <br />3Sa 5.22 5 0.53 9.20 Trapezoidal' C:\SEDCAD3\CR7\PND3A19, SEDCAD+ ERODIBLE <br /> CHANNEL DESIGN Ditch 3Sa <br />3Sb 9.18' 30 0.31 7.88 Trapezoidal', C:\SEDCAD3\CR7\PND3A20, SEDCAD+RIPRAP <br /> riprap° CHANNEL DESIGN Ditch 3Sb <br />3Sc 4.14 7 0.89 4.45 Triangular' C:\SEDCAD3\CR7\PND3A19, SEDCAD+ERODIBLE <br /> CHANNEL DESIGN Ditch 3Sc <br />3Sd 1.11 5 0.68 3.42 Triangular' C:\SEDCAD3\CR7\PND3A19, SEDCAD+ERODIBLE <br /> CHANNEL DESIGN Ditch 3Sd <br />4Na 5.12 6 0.91 5.47 Triangular' C:\SEDCAD3\CR7\PND4A7, SEDCAD+ ERODIBLE <br /> CHANNEL DESIGN Ditch 4Na <br />4Nb 5.12 22 0.42 2.51 riprap' C:\SEDCAD3\CR7\PND4A7, SEDCAD+ RIPRAP <br /> CHANNEL DESIGN Ditch 4Nb <br />SNa 17.66 5 0.77 10.62 Trapezoidal' C:\SEDCAD3\CR7\PNDSA6, SEDCAD+ ERODIBLE <br /> CHANNEL DESIGN Ditch SNa <br />SNb 17.66 l6 0.52 3.12 clastic material C:\SEDCAD3\CR7\PNDSA6, SEDCAD+ RIPRAP <br /> armor CHANNEL DESIGN Ditch SNb <br />SNc 8.83 6 0.72 4.30 Triangular' C:\SEDCAD3\CR7\PNDSA6, SEDCAD+ RIPRAP <br /> CHANNEL DESIGN Ditch SNc <br />7'11 10 Decembcr 1997 <br />