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Ellicott Sand & Gravel LLC Page 2 <br /> Bank Armoring Plan (June 26, 2020) <br /> Reservoir Bank Armoring. <br /> Armoring will be placed inside of the mined areas adjacent to the <br /> South Platte River channel (Phases 1 and 2) and along the <br /> downstream side of the lateral berm between those areas . The <br /> armoring will be placed on the slopes starting from the existing <br /> ground surface elevation. The toe of the armoring will be a <br /> minimum of 5 feet below the river thalweg, have a 3h to lv slope <br /> and will be 2 feet or more thick. This is approximately 2 . 35 <br /> cyd/lft along the excavation bank slopes . once sloping begins, <br /> the armoring will be installed on 1, 000 foot sections until <br /> completed. This will leave an armored face along the top of the <br /> bank and the slope into the reservoir that is 35 feet wide . <br /> Supplied supporting documents <br /> Figure 1 - Bank Protection Plan cross section (revised) <br /> Safety factor calculation page <br />