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The diversion ditch cross sectional azea for the steeper, slough bank section of the <br />ditch is: <br /> <br /> <br /> <br />Description Feet <br />Bottom of Ditch 2.00 <br />Depth of Flow 1.15 <br />Ditch Width -Top of Flow 8.90 <br />Ditch Width - Top of Ditch 10.70 <br />Freeboazd 0.30 <br />Ditch Side Slope 3:1 <br />Velocity, fps 6.27 <br /> The shallower sloped ditch should be lined with grass to prevent erosion. The <br />steeper ditch section on the slough bank should be lined with riprap that is either <br /> mortazed in place or a gabion type construction. <br />' 12. It is recommended that an application should be made to the Colorado <br /> Department of Transportation to use the Interstate right of way for the diversion <br /> ditch. <br />' <br /> 13. The runoff control structures described above provide design criteria. The <br /> specific design drawings will be prepared after the acceptance of the drainage <br />' study and prior to construction. <br /> <br /> <br /> <br />1 <br />1 <br />1 <br /> <br />1 <br />