The Design-Build Firm shall be responsible for the following: Evaluating geotechnical conditions to determine the drilled shaft diameter and length and construction methods to be used. Performing the subsurface investigation and drilling holes prior to establishing the drilled shaft tip elevations and socket requirements. For redundant drilled shaft bridge foundations, perform at least one test boring in accordance with the Soils and Foundations Handbook at each bent/pier. Note to developer of the RFP: Coordinate with District Geotechnical Engineer to determine whether this frequency needs to be increased due to site variability. Determining the locations of the load test shafts and the types of tests that will be performed. Performing pilot borings for test holes (also known as test shafts or method shafts) and load test shafts and providing the results to the Department at least one (1) working day before beginning construction of these shafts. Preparing and submitting a Drilled Shaft Installation Plan for the Department’s acceptance. Constructing the method shaft (test hole) and load test shafts successfully and conducting thermal integrity tests on these shafts. Providing all personnel and equipment to perform a load test program on the load test shafts. Determining the production shaft lengths. Documenting and providing a report that includes all load test shaft data, analysis, and recommendations to the Department. Constructing all drilled shafts to the required tip elevation and socket requirement in accordance with the specifications. Inspecting and documenting the construction of all drilled shafts in accordance with the specifications. Performing Sonic Logging (CSL) or Thermal Integrity tests on all nonredundant drilled shafts supporting bridges. For redundant drilled shaft bridge foundations and drilled shafts for miscellaneous structures, perform CSL or Thermal Integrity testing on any shaft suspected of containing defects. Repairing all detected defects and conducting post repair integrity testing using 3D tomographic imaging and gamma-gamma density logging. Submitting Foundation Certification Packages in accordance with the specifications. Providing safe access, and cooperating with the Department in verification of the drilled shafts, both during construction and submittal of the certification package. Spread Footings Foundations The Firm shall be responsible for the following: Evaluating geotechnical conditions and designing the spread footing. Constructing the spread footing to the required footing elevation, at the required soil or rock material, and at the required compaction levels, in accordance with the specifications. Preparing and submitting an Cast Pile Installation Plan for the Department’s acceptance. Inspecting and documenting the spread footing construction. Submitting Foundation Certification Packages in accordance with the specifications.
The Design-Build Firm shall be responsible for the following: Evaluating geotechnical conditions to determine the drilled shaft diameter and length and construction methods to be used. Performing the subsurface investigation and drilling holes prior to establishing the drilled shaft tip elevations and socket requirements. For redundant drilled shaft bridge foundations, perform at least one test boring in accordance with the Soils and Foundations Handbook at each bent/pier. Note to developer of the RFP: Coordinate with District Geotechnical Engineer to determine whether this frequency needs to be increased due to site variability. Determining the locations of the load test shafts and the types of tests that will be performed. Performing pilot borings for test holes (also known as test shafts or method shafts) and load test shafts and providing the results to the Department at least one (1) working day before beginning construction of these shafts. Preparing and submitting a Drilled Shaft Installation Plan for the Department’s acceptance. Constructing the method shaft (test hole) and load test shafts successfully and conducting thermal integrity tests on these shafts. Providing all personnel and equipment to perform a load test program on the load test shafts. Determining the production shaft lengths. Documenting and providing a report that includes all load test shaft data, analysis, and recommendations to the Department. Constructing all drilled shafts to the required tip elevation and socket requirement in accordance with the specifications. Inspecting and documenting the construction of all drilled shafts in accordance with the specifications. Performing Sonic Logging (CSL) or Thermal Integrity tests on all nonredundant drilled shafts supporting bridges. For redundant drilled shaft bridge foundations and drilled shafts for miscellaneous structures, perform CSL or Thermal Integrity testing on any shaft suspected of containing defects. Repairing all detected defects and conducting post repair integrity testing using 3D tomographic imaging and gamma-gamma density logging. Submitting Foundation Certification Packages in accordance with the specifications. Providing safe access, and cooperating with the Department in verification of the drilled shafts, both during construction and submittal of the certification package. Spread Footings Foundations The Firm shall be responsible for the following: Evaluating geotechnical conditions and designing the spread footing. Constructing the spread footing to the required footing elevation, at the required soil or rock material, and at the required compaction levels, in accordance with the specifications. Preparing and submitting an Cast Pile Installation Plan for the Department’s acceptance. Inspecting and documenting the spread footing construction. Submitting Foundation Certification Packages in accordance with the specifications.