Laserfiche WebLink
<br />I <br />I <br />I <br />I <br /> <br />beach slope with gravel, however. Due to the length and mild pitch of the slope, <br />seepage issues are not a concern. The upstream slope stability and the factor of safety <br />would be excellent. The expected long construction duration is expected to impact the <br />ability to use and/or store water. <br /> <br />I <br />I <br /> <br />Option 5B - Beach the Upstream Slope at a 5(H):1(VI Slope and Armor with Soil Cement <br />This option consists of flattening the upstream slope to a 5.0 (horizontal) to 1.0 <br />(vertical) to increase embankment stability, and provide a flattened surface for <br />placement of a soil cement armor by paving methods. The soil cement paving would be <br />nominally 12 inches thick, with a 24-inch thick layer placed near the winter water <br />storage level (gage height 271 to enhance freeze/thaw protection and icing damage. <br />Wave energy dissipation is accomplished through a combination of the wave travel <br />(runup) up the relatively flat surface and through the traditional impact and redirection <br />of wave energy vertically. <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />The primary concerns with this option are the untested application of relatively <br />thin soil cement sections placed in very large plating operation in an environment <br />subjected to frost heave, extensive areas of freeze/thaw due to capillary action and <br />wave saturation of the surface, and ice loading and ice scour on the relatively flat <br />surfaces. This facing is expected 'to perform similar to a concrete slab, with all the <br />inherent problems of concrete facing, with the added issues related to flat placement, <br />Large expanses of slab would be subjected to significant shrinkage cracking, and the <br />relatively thin sections may be more subject to deterioration by vegetative and <br />freeze/thaw actions at the creaking. Life span is estimated to be similar to concrete <br />slabs, 50 years. Due to the length and mild pitch of the slope and the installed facing, <br />seepage issues are not a concern. The upstream slope stability and the factor of safety <br />would be excellent. The expected long construction duration is expected to impact'trie <br />ability to use and/or store water. <br /> <br />30 <br />