1704.9 Pier foundations. Special inspection is required for all pier foundations designed in accordance with Section 1 808.2.2‡
Exception: Piers for support of lightweight fences, recreational equipment, site furnishings and similar construction, unless special inspection is specifically noted as required on the approved construction documents.
1704.9.1 Underpinning operations. Special inspection is required for underpinning operations in accordance with Sections 1704.19 and 1814.