United States Department of Transportation
i
Construction Quality Assurance for Design-Build Highway Projects: [techbrief]
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2012-04-01
[PDF-237.15 KB]
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Abstract:A majority of State transportation agencies use the design-build (DB) contracting method to deliver some transportation projects. Documented benefits of DB include faster project delivery, improved constructability, less cost growth, early cost certainty, and fewer claims. The purpose of this TechBrief is to help clarify the roles, responsibilities, and activities related to construction quality assurance (QA) on DB projects. The specific topics discussed include QA, quality control (QC), and acceptance. Related topics such as independent assurance (IA), dispute resolution, personnel qualification, laboratory qualification, and warranties are also discussed. Some request for proposals (RFP) and contract documents for DB projects have incorrectly assigned responsibility for acceptance to the design-builder, which is not in accordance with 23 CFR 637. Additionally, because the DB project delivery method is often used on large, complex, fast-paced projects, it presents some unique challenges that merit discussion.
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