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collection ditch = 3% <br />2. @ pt. near west end: <br />"bench width = 10'; bench inslope = 2% <br />'grade from approx. mid-point in section above access road west <br />toward the access road = 2% <br />3. @ pt. below west end of access road, 100' east of west collection ditch: <br />`bench width 12.5'; bench inslope = 5% <br />"grade from pt. below west end of access road to pt. 100' east of west <br />collection ditch = 3% <br />'slope steepness between 2nd and 3rd benches = 40% <br />`slope length between 2nd and 3rd benches = 79' (lift height = 29 ') <br />D. First Bench: <br />1. @ pt. 100 yards west of east collection ditch: <br />`bench width = 13.5'; bench inslope = 6% <br />"grade from pt. 100 yards west of east collection ditch to east <br />collection ditch = 2% to 3% <br />`grade from pt. 100 yards west of east collection ditch west to access <br />road = 3% <br />`slope steepness between 1st and 2nd benches = 35% <br />`slope length between 1st and 2nd benches = 87' (lift height = 29') <br />2. @ pt. below, and 10' west of, west end of access road: <br />`bench width = 18'; inslope = 2% <br />`grade west from tie-in @ access road to west collection ditch = 3% <br />'slope steepness between 1st and 2nd benches = 40% <br />`slope length between 1st and 2nd benches = 67' (lift height = 25') <br />E. East Collection Ditch: <br />1. @ pt. on east side of first lift, 15' below first bench, above access road: <br />`top width= 11'; bottom width = 3'; depth = 21 "; grade = 15%; riprap = 9 to <br />24" diameter <br />2. @ pt. on east side of 2nd lift, midway along slope: <br />`top width = 10.5'; bottom width = 4.5'; depth = 18"; grade = 31 %; similar <br />riprap <br />3. @ pt. on east side of 3rd lift, midway along slope: <br />"top width = 8.5'; bottom width = 3%; depth = 17"; grade = 21 °~; similar <br />riprap <br />8 <br />