Laserfiche WebLink
Page 4 <br /> <br /> <br />The site is not designated to be located within the Special Studies/Earthquake Zone under <br />the Alquist-Priolo Special Studies Act. <br /> <br />Liquefaction Potential <br /> <br />As previously mentioned, for conservative purposes, the subject site is assumed to be <br />subject to the liquefaction. Therefore, the owner(s) of this property should be aware of <br />the risks associated with the potential liquefaction such as structural distress due to the <br />potential differential settlement caused by the potential liquefaction. <br /> <br />As previously mentioned, for conservative purposes, a strengthened / stiffened <br />foundation system (having thicker slabs with more reinforcements and deeper and <br />wider footings with more reinforcement as recommended in this report) should be <br />used for support of the proposed structure. <br /> <br />Potential Consequences of Liquefaction or Secondary Liquefaction Included Hazards <br /> <br />Potential consequences of liquefaction or secondary liquefaction included hazards <br />generally consist of differential settlement (vertical deformations), lateral <br />movement/lateral spreading (horizontal deformations), oscillation, and reduction in <br />foundation soil-bearing capacity (bearing failure). <br /> <br />A sloping condition or drainage or stream channel does not exist at the site; therefore, <br />lateral movement/lateral spreading, oscillation, etc. due to potential liquefaction are not <br />anticipated to be credible hazards for the proposed new structure. <br /> <br />We believe if the area would be “liquefied” in the future due to a very strong earthquake, <br />the potential damage to the proposed new structures which will be properly structurally <br />designed in accordance with the new up-to-date codes would be much less severe than <br />the existing on-site structures and surrounding existing houses which have been <br />previously structurally designed based on old codes (which are much less stringent than <br />the current new codes). However, the owner(s) of this property should be aware of the <br />potential damage to the new structures due to liquefaction. <br /> <br />In summary, it should be recognized that structural mitigation may not reduce the <br />potential of the soils to liquefy during an earthquake; and there will remain some risk that <br />the new structures could still suffer damage if liquefaction occurs, during a very strong <br />earthquake. <br /> <br />For conservative purposes, a strengthened / stiffened foundation system as <br />recommended in this report should be used for support of the proposed structure. <br /> <br />Slope Stability <br /> <br />209 N Bewley St <br />Unit# 211/13/2024