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1704.6 Structural Observations
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Where required by the provisions of Section 1704.6.1, the owner or the owner's authorized agent shall employ a registered design professional to perform structural observations. The structural observer shall visually observe representative locations of structural systems, details and load paths for general conformance to the approved construction documents. Structural observation does not include or waive the responsibility for the inspections in Section 110 or the special inspections in Section 1705 or other sections of this code. Prior to the commencement of observations, the structural observer shall submit to the building official a written statement identifying the frequency and extent of structural observations. At the conclusion of the work included in the permit, the structural observer shall submit to the building official a written statement that the site visits have been made and identify any reported deficiencies that, to the best of the structural observer's knowledge, have not been resolved.
1704.6.1 Structural Observations for Structures
Structural observations shall be provided for those structures where one or more of the following conditions exist:
- The structure is classified as Risk Category III or IV.
- The structure is a high-rise building.
- The structure is assigned to Seismic Design Category E, and is greater than two stories above the grade plane.
- Such observation is required by the registered design professional responsible for the structural design.
- Such observation is specifically required by the building official.
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