524 Drilled Shafts

1. Specification:

Item 524.02 C&MS

Item 705.12,(Type F or G) C&MS

2. Sampling and/or Inspection Requirements:

It is the Contractor's responsibility to provide the Engineer with all the necessary labor and equipment to obtain measurements of the drilled shaft. Since it is not possible to obtain measurements after the concrete is placed, it is necessary to obtain these measurements prior to placing concrete.

Due to the risks involved, at no time should the Engineer ever go down into a drilled shaft for inspection or any other purpose.

A completed form BR112 should be submitted to the Office of Structural Engineering. Do not place concrete in any drilled shaft excavation without acceptance from the Engineer.

3. Method of Tests:

Item 511, 524.08