wwhitney
Registered User
Agreed on all of the above. The requirement to submit a geotechnical report comes from section 1803, not section 107. Which is what I said in my first post.IBC 1803.2 requires that geotechnical investigations be conducted. The exception to 1803.2 says the Building Official "... shall be permitted to waive the requirement for a geotechnical investigation where satisfactory data from adjacent areas is available that demonstrates an investigation is not necessary for any of the conditions in Sections 1803.5.1 through 1803.5.6 and Sections 1803.5.10 and 1803.5.11." So the geotechnical investigation and report are only not required IF the BO waives it, and he/she may do that only when there is satisfactory data available. It's not the applicant's call whether or not to provide it. The applicant has to request NOT to provide it, and the BO doesn't have to waive the requirement.
Likewise, the exception to 107.1 allows the BO to waive any of the required submittals " ... if it is found that the nature of the work applied for is such that review of construction documents is not necessary to obtain compliance with this code."
Although, again, this excursion into the IBC is likely a side track for the original example, which was residential and hence likely under the IRC. In the IRC, the default appears to be that no geotechnical report is required, although the building official may require one under R401.4. The original example sounded like an abuse of that discretion.
Cheers, Wayne
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