Section 27-715
§ 27-715 General requirements. Where support of adjacent structures or
properties is required, such support may be provided by underpinning,
sheeting, and bracing, or by other means acceptable to the commissioner.
Except as specifically permitted otherwise, underpinning piers, walls,
piles, and footings shall be designed and installed in accordance with
the applicable provisions of this subchapter relating to piers, walls,
piles, and footings used in new construction and shall be inspected as
provided in section 27-724 of article thirteen of this subchapter.
Section 27-716
§ 27-716 Use of rock support in lieu of underpinning. Existing
structures founded at a level above the level of adjacent new
construction may be supported on hard rock in lieu of underpinning, the
use of sheeting and bracing, or the construction of retaining walls,
provided that a report by the architect or engineer is submitted
substantiating the safety of the proposed construction and verifying
that an "in-place" inspection has been made of the rock exposed and of
the jointing therein in the excavation.
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