Alternative Quality Management Systems for Highway Construction (2015) / Chapter Skim
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APPENDIX M: SH130 TURNPIKE EXTENSION, TEXAS Project Information Project Name: SH 130 Turnpike Project Exclusive Development Agreement Name of Agency: Texas Department of Transportation (TxDOT) – Texas Turnpike Authority Location: SH 130 through Travis and Williamson Counties, Texas Project Delivery Method (DBB, DB, CMR, PPP, etc.)
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Project Quality Profile The SH 130 project QC/QA program consisted of four inter-dependent components: the QC Program, the Owner Oversight Program, the Independent Assurance (IA) Program, and the independent Construction Quality Assurance (CQA)
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The Construction Quality Assurance Manager (CQAM) had overall responsibility for the Construction Quality Assurance Firm (CQAF)
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Project Delivery Method Decision Rationale Agency Project Delivery Experience Table M1: Agency Project Delivery Method Experience Project Delivery Method Legislative/Legal Authority Number of years of experience with PDM DBB ☐NA; ☐Pilot projects only; ✓General authorization ☐NA; ☐1-5; ☐5-10;✓ > 10 CMGC ☐NA; ☐Pilot projects only; ✓General authorization ☐NA; ✓1-5; ☐5-10;☐ > 10 DB ☐NA; ☐Pilot projects only; ✓General authorization ☐NA; ☐1-5; ✓5-10;☐ > 10 PPP ☐NA; ☐Pilot projects only; ✓General authorization ☐NA; ☐1-5; ✓5-10;☐ > 10 Other ☐NA; ☐Pilot projects only; ☐General authorization ☐NA; ☐1-5; ☐5-10;☐ > 10 Agency Project Delivery Decision-making Process State highway agencies have been facing growing pressures for accelerated delivery of highway infrastructure and the constraints of funding and staff resources. Therefore, alternative project delivery methods such as design-build and concession have been utilized more frequently.
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Table M3: Require Bidding Documents Requirements of the project advertising/solicitation documents (i.e.
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Construction Phase Summary Table M5: Construction Quality Management Roles Responsibility allocation for construction management tasks Agency personnel Consultant design staff Constructor's construction staff Agency-hired QA/oversight consultant Technical review of construction shop drawings ✓ Technical review of construction material submittals ✓ Checking of pay quantities ✓ Routine construction inspection ✓ ✓ Quality control testing ✓ Verification testing ✓ ✓ Acceptance testing ✓ Approval of progress payments for construction progress ✓ Approval of construction post-award QM/QA/QC plans ✓ ✓ Report of nonconforming work or punchlist. ✓ Quality Management Planning QA/QC Plans The SH 130 was the first design-build highway infrastructure project in Texas where contractor QC testing was used in the acceptance decision for all project-produced materials.
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methodologies for tracking the percentage complete with work activities for the purpose of certifying the Developer's draw requests. In addition to the traditional TxDOT prescriptive specifications, the project adopted several performance-related specifications.
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• Inspection of all development work • Material sampling and testing • Auditing of records, documentation, and procedures of Developer's QC program • Reviewing and approving Portland cement and hot mix asphalt concrete mix designs • Environmental compliance inspections Though it was considered as part of the Developer's team, the CQAF was technically an independent entity that reported to management from both TxDOT and the Developer. Such a private-public partnership on quality assurance allowed the Developer and TxDOT to effectively capitalize from the expertise and resources of the private sector and address the critical CQA needs of the fast-track project delivery.
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Example of Alternate QM System Used on This Project SH130 generated large volumes of data that needed to be processed, stored, and analyzed quickly. As of July 2006, the ICQF had generated and transmitted approximately 65,000 test records and 30,000 inspection reports to TxDOT.
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Manager enabled the group to work seamlessly in developing and implementing the QAP. • Escalation Matrix: Prior to construction, there was a construction partnering session that included nearly every project team member on the construction side of the project.
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• Industry Review Process: The industry review process included the development of a risk allocation table as a trade-off with the proposers and includes a reiterative cycle of subtasks. Initially, the Department released draft sections of Request for Detailed Proposal (RFDP)
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