1814.2 Design.
BC § 1814.2
Design of helical pile foundations shall be based on a geotechnical investigation in accordance with Sections 1803 and 1810.2 with the following additional conditions stated in Sections 1814.2.1 and 1814.2.2. Exception: For the repair of residential porches, stoops and slab on grades, helical test probes may be used to substitute for test borings, provided the helical pile has a torque to capacity ratio approved in accordance with Section 28-113.2.1 of the Administrative Code.
