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DBI staff outlines when geotechnical reports and peer review are required under city and state rules
Summary
Deputy Director Wing Lau and structural engineer Ray Lui reviewed code triggers — including grading, seismic hazard zones, and landslide-susceptible areas — that require geotechnical reports and outside peer review; commissioners urged clearer guidance for hillside projects and staff capacity increases.
Deputy Director Wing Lau and structural engineer Ray Lui told the Building Inspection Commission on April 16 that city and state codes already require geotechnical (soil) reports for many projects and that additional peer review is triggered in landslide or liquefaction zones.
Lau and Lui cited code provisions and guidance the department relies on: a building-code provision described in the presentation (referred to as Section 106.3, item 15) that requires geotechnical reports for significant grading, excavation, special…
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