Alternative Project Delivery - Texas Water Development Board
Alternative Project Delivery - Texas Water Development Board
Alternative Project Delivery - Texas Water Development Board
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Description of <strong>Project</strong> <strong>Delivery</strong> Methods<br />
the DB proposals. The typical project structure for a DB project is shown in Figure 2-<br />
2.<br />
Figure 2-2<br />
DB <strong>Project</strong> Structure<br />
Customer<br />
Customer Customer Customer Customer Customer<br />
Bonds<br />
Owner<br />
DB Contractor<br />
Design<br />
Engineer<br />
Contractor<br />
Operator<br />
Payment and<br />
Performance Bond<br />
Insurance for Risk<br />
Mitigation<br />
Design<br />
Equipment &<br />
Technology<br />
Construction<br />
Contractor<br />
Startup / Testing<br />
Operation &<br />
Maintenance<br />
The Design Consultant of the DB Contractor prepares a design suitable for<br />
construction based on the Owner’s <strong>Project</strong> Criteria.<br />
Under a DB project delivery, there can be very different levels of interaction during<br />
the design process between the Design Consultant and the Construction<br />
Contractor. In some instances, the Design Consultant may substantively complete<br />
the design with limited input from the Construction Contractor. This tends to occur<br />
in DB projects without lump sum fixed price or guaranteed maximum price contracts.<br />
In other instances, the Construction Contractor may work in an integrated and<br />
iterative manner with the Design Consultant to develop a project that maximizes<br />
constructability, expedites schedule, and minimizes capital cost. This tends to occur in<br />
DB projects with a fixed price contract and allocation of the schedule risk to the DB<br />
Contractor. Owners should consider the DB Contractor's specific approach<br />
carefully as they will obtain the greatest value from an interactive approach of both the<br />
Construction Contractor and the Design Consultant.<br />
In DB Contracting, generally, there is a trade off of Owner control over design details<br />
and project schedule for project cost and/or schedule benefits. Generally, the Design<br />
Consultant has significant discretion under a DB contract regarding the design<br />
details. An Owner should carefully consider the project’s design review and public<br />
involvement process. The DB Contractor also generally has significant discretion<br />
over the project schedule as long as key milestones are met.<br />
B1381-Sect2 R. W. Beck 2-7