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Exhibit 7-23B, Table 1 <br />Ditch Design Parameters <br />Ditch Name <br />Ditch Station <br />Design <br />Event <br />Flow Q <br />Slope, <br />% <br />Type <br />Specified <br />Depth <br />Bottom <br />VAdth <br />Side <br />Slope, <br />HAV <br />Rip Rap, <br />D50in <br />D-1 Ditch <br />0+00 to 6+23 <br />10 year <br />12.4 <br />21.0% <br />riprap <br />4.0 <br />12.0 <br />2.0 <br />6.0 <br />D-2 Ditch <br />0+00 to 30+64 <br />10 year <br />10.5 <br />4.9% <br />vegetated <br />4.0 <br />12.0 <br />2.0 <br />NA <br />D-3 Ditch <br />0+00 to 15+24 <br />10 year <br />12.7 <br />16.1% <br />Riprap <br />4.0 <br />12.0 <br />2.0 <br />9.0 <br />D-4 Ditch <br />0+00 to 11+65 <br />10 year <br />10.4 <br />12.0% <br />riprap <br />4.0 <br />12.0 <br />2.0 <br />9.0 <br />D-5 Ditch <br />0+00 to 64+77 <br />10 year <br />56.1 <br />2.0% <br />vegetated <br />4.0 <br />12.0 <br />2.0 <br />NA <br />D-6 Ditch <br />0+00 to 37+41 <br />1 10 year <br />37.6 <br />5.9% <br />vegetated <br />4.0 <br />20.0 <br />2.0 <br />NA <br />Exh. 7-23B-2 Revision Date: 3/19/18 <br />Revision No.: TR -118 <br />