1705.6 Subsurface conditions.
BC § 1705.6
The special inspections for existing subsurface conditions, fill placement, load-bearing requirements, subsurface investigations, borings and test pits shall be performed in accordance with this section and Table 1705.6 of this code. The approved geotechnical report and construction documents, as applicable, shall be used to determine compliance. Special inspection reports of borings and/or test pits shall be in accordance with ASTM D 1586, ASTM D 1587 and Section 1803.5 of this code. Table 1705.6Required Special Inspections of Subsurface Conditions TypeContinuousSpecial InspectionPeriodicSpecial Inspection 1. Special inspection of subsurface investigations, borings and test pits. Boring and test pit operations, and alternative investigation methods, shall be subject to continuous special inspection to verify compliance with Section 1803. Soil sample recovery operations for test pits shall be subject to continuous special inspection to verify compliance with Section 1803. Exceptions: 1. Cone penetrometer testing used as an alternative investigation method per Section 1803.5.2 shall be subject to periodic special inspection.
2.Existing boring, test pit and alternative investigation records that have been deemed acceptable to the commissioner in accordance with Section 1803.4.2 are not subject to special inspection.X— 2. During fill placement. During placement and compaction of the fill material, the special inspector shall determine that the material being used and the maximum lift thickness comply with the approved geotechnical report, as specified in Section 1804.5.X— 3. Evaluation of in-place density. The special inspector shall determine that the in-place dry density of the compacted fill complies with the approved construction documents.X— 4. Subgrade inspection. Immediately prior to placement of each and every footing, foundation, fill or other supporting materials, the special inspector shall determine that the site has been prepared and is in accordance with the approved geotechnical report.—X (Am. L.L. 2023/077, 6/11/2023, eff. 6/11/2023) Editor's note: For related unconsolidated provisions, see Appendix A at L.L. 2023/077.
