#4 DOTS PDF PROTECTOR MANUAL#

Where applicable, inspect the footing areas and foundations for evidence of instability or areas where hydrostatic pressures may develop.Testing must follow the frequencies shown in Section 6-1, “Sample Types and Frequencies,” of this manual. The samples will be crushed in the laboratory to sizes needed to perform tests. Obtain rock samples for acceptance tests.

Take the following steps when inspecting the work and materials for slope protection: Obtain initial samples and have them tested for the specified attributes.

#4 DOTS PDF PROTECTOR MANUAL#

Refer to Section 6-202, “Responsibilities for Acceptance of Manufactured or Fabricated Materials and Products,” of this manual for additional information. Take pictures to document existing conditions and verify that Form CEM-3101, “Notice of Materials to Be Used,” includes the materials for slope protection. Any springs or water courses that might affect the stability of the design.Capability of adjacent soil types to resist erosion from wash and eddy currents.Direction of flow and angle of impingement at various water stages.In making such a decision, observe the following: Decide whether modifications are necessary as a result of changed conditions. Note any changes that may have occurred between the preliminary design studies and the start of construction. 4-7202 Before Work Beginsīefore construction of any type of slope protection, review the plans, Standard Specifications, special provisions, any pertinent preliminary test data, and the location of the installation. Resident engineers should be familiar with the material contained in Chapters 870, “Bank Protection-Erosion Control,” and 880, 'Shore Protection,' of the Highway Design Manual.

If extensive slope protection problems are anticipated or encountered during construction, refer these to the design engineer and the project manager, who may in turn obtain the advice of the “Caltrans Bank and Shore Protection Committee.” The bid item list and plans will specify which type of slope protection is to be performed. Other protective devices are used in conjunction with highway construction, and when used, they are included in the contract’s special provisions. The following common types of slope protection are covered in this section: This section provides guidelines for inspecting slope protection for work specified under Section 72, “Slope Protection,” of the Standard Specifications. Section 72 Slope Protection 4-7201 General

4-7203E Broken-Concrete Slope Protection.

4-7203B Concreted-Rock Slope Protection.

4 dots pdf protector