Laserfiche WebLink
constructed. We would recommend about six piezometers be placed <br />• throughout the pile in such a manner a:. to obtain a representative <br />water level profile. Generally, the majority of the piezometers <br />should be placed beneath the longer, downhill slopes. We recommend <br />placing these piezometers in the fill approximately 10-ft. above the <br />native ground surface, The location and elevation of piezometers <br />should be documented as they are placed. The controls of the pie- <br />zometers should be extended t.o one point or "box" where they can be <br />monitored and are safe from damage. The purpose of these piezometers <br />is to provide accurate readings of the piezometric level within the <br />pile. Our slope stability analysis was based upon assumptions of <br />the eventual water level, and the: slope stability analysis is quite <br />sensitive to the location of the piezometric line, In the event that <br /> the actual piezometric level is found to be significantly different <br /> from that assumed in the analysis, the slope configuration and/or <br />drainage conditions can be modified during construction to reflect <br />actual subsurface moisture condition=. <br />It is cc•nsidered important that positive drainage be maintained <br />arounc the pile so that runoff is carried away. The drainage around <br />the pile should be planned such that the pile does not impound water <br />and water is not allowed to stand or pond anywhere on the site. The <br />top of the pile and the benches or terraces on the slopes of the pile <br />should have a gradient of between 20 and 5~ to facilitate runoff re- <br />moval without creating excessive erosion. <br />We appreciate the opportunity to perform this study for you. <br />• Should questions arise concerning ttis report, or should further in- <br />formation be needed, please feel free to contact us at your convenience. <br />