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From page 263... ...
APPENDIX I: US 160 4TH LANE ADDITION, COLORADO Project Overview Project Name: U.S. 160 4th Lane Addition Name of Agency: Colorado Department of Transportation (CDOT)
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From page 264... ...
Project Schedule: completion by Nov. 30, 2010 Project Approved to start process: January 2007 Initial Advertising: June, 2007 Contract Award: April 3, 2008 Original Project Delivery Period: Contract required completion of the project by Nov.
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From page 265... ...
Case Study Project Procurement Process Summary Procurement Phase Summary Table I2: Administrative Prequalification Requirement Designer prequalification program factors Administrative Prequalification required for all projects ✔ Prequalification required for selected projects only ☐ Prequalification standards are the same for all projects ☐ Prequalification standards are different by project class ☐ Designer prequalification program factors Administrative Prequalification required for all projects ✔ Prequalification required for selected projects only ☐ Prequalification standards are the same for all projects ☐ Prequalification standards are different by project class ☐ Note: Anyone bidding or responding to a RFP has to be already on CDOTs prequalified list of designer or contractors. This project required a DB team with the contractor submitting the response to the RFP.
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From page 266... ...
Design Phase Summary Table I4: Design Quality Management Roles Responsibility allocation for design management tasks Agency personnel Consultant design staff Constructor's preconstruction staff Agency-hired QA/oversight consultant Technical review of design deliverables ✔ ✔ Checking of design calculations ✔ Checking of quantities ✔ ✔ ✔ Acceptance of design deliverables ✔ Review of specifications ✔ Approval of final construction plans & other design documents ✔ Approval of progress payments for design progress ✔ Approval of post-award design QM/QA/QC plans ✔ Construction Phase Summary Table I5: 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 Design QM/QA/QC Plans The only Quality Plan created specifically for this project is the contractor created Design Quality Control Plan (DQCP)
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From page 267... ...
• Identify the applicable computer programs to develop and check designs. • Identify design input requirements and perform on-going audits of the design input requirements.
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From page 268... ...
• QC inspection methods and procedures for all stages of operations. At a minimum, the items in the CDOT inspectors Checklist and CDOT Construction manual shall be inspected.
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From page 269... ...
Final acceptance still has not been granted on the project because of cracking abutments. CDOT did award partial acceptance on the majority of the project by the end of 2009.
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From page 270... ...
• Quality Assurance Audit – A QA audit will be performed by the Project Quality Assurance Officer at the end of each completed final package to assure that plans, specifications, calculations and design reports have been checked, reviewed, and properly signed-off in conformance with the DQCP. Design Quality Forms Design quality forms were included as part of the appendix of the DQCP.
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From page 271... ...
Summary QA Project Approach The Assurance QAO was used for this project and is shown in Figure I1. Project Acceptance Construction Quality Assurance Design Quality Assurance Design Quality Control Construction Quality Control Design Released for Construction Construction Released for Final Payment Owner Verification (if req'd)
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From page 272... ...
Another difficulty with design was gaining an understanding within Staff Bridge personnel as to the difference between a design requirement and a design preference. If it was a preference and CDOT accepted the "change" then the contractor is entitled to additional monies to implement the preference.
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