406 SE EVERETT MALL WAY BASE FILE 2018-01-02 MF Import

IMPORTANT INFORMATION . ABOUT YOUR GEOTECHNICAL ENGINEERING REPORT More construction problems are caused by site subsurface conditions than any other factor. In tht early 1970's, subsurface problems were frequently being resolved through lawsuits. In fact, the situation had grown to such alarming proportions that consulting geotechnical engineers had the worst profcgsional liability record of all design pr-ifessionals. By 1980, Association of Soil and Foundation Engineers -member consulting soil and foundation engineers had the best profes- sional liability record. This dramatic turn. -about can be attributed directly to client acceptance of problem -solving programs and materials developed by ASFE for its members' application. This acceptance was gained because clients perceived this approach to be in their own best interests. Disputes benefit only those who earn their living from others' disagreements. The following suggestions and observa- tions are offered to help you reduce the geotechnical-related delays, cost -over- runs and other costly headaches that can occur during a construction project. A GEOTEC@RCAL ENGINEERING REPORT IS BASED ON A UNIQUE SET OF PROJECT - SPECIFIC FACTORS A geotechnical engineering report is based on a subsurface exploration plan designed to incorporate a unique set of project -specific factors. These typi- cally include: the general nature of the structure involved, its size and configu- ration; the location of the structure on the site and its orientation; access roads, parking lots, and underground utilities, and the level of additional risk which the client assumed by virtue of limitations imposed upon the exploratory program. To help avoid costly problems, consult Earth Consultants, Inc. to determine how any factors which change subsequent to the date of this report may affect our recommendations. Unless we indicate otherwise, your geotechnical engineering report should not be used: When the nature of the proposed structure is changed, for example, if an office building will be erected instead of a parking garage, or if a refrigerated warehouse will be built instead of an unrefrig- erated one. When the size or configuration of the proposed structure is altered. When the location or orientation of the proposed structure is modified. For application to an adjacent site. We cannot accept responsibility for problems which may develop if we are not consulted, after factors considered in our reports development have changed. MOST GEOTECRNICAL "FINDINGS" ARE PROFESSIONAL ESTIMATES Site exploration identifies actual subsurface conditions only at those Points where samples are taken, when they are taken. Data derived through sampling and subsequent laboratory testing are extrapolated by the geotech- nical engineer who then renders an opinion about overall subsurface con- ditions, their likely reaction to proposed construction activity, and appropriate foundation design. Even under optimal circumstances, actual conditions may differ from those be- lieved to exist, because no geotechnical engineer, no matter how qualified, and no subsurface exploration program, no matter how comprehensive, can reveal what is hidden by earth, rock and time. For example, the actual interface be- tween materials may be far more gradual or abrupt than the report indicates, and actual conditions in areas not sampled may differ from predictions. Nothing can be done to prevent the unantici- pated, but steps can be taken to help minimize their impact. For this reason,