Design-Build (DB)

Design-Build (DB)

Design-Build combines into a single contract the design, construction, construction engineering, inspection requirements, and testing requirements for a project, all in accordance with project specific design criteria, construction specifications, and contract administration practices. These projects allow the contractor to participate in design in an effort to reduce costs and expedite construction.

Design Build chart

Best fit characteristics

  • Well-defined conditions, scope & outcomes
  • Well-defined operations & aesthetics
  • Conventional technology
  • Experienced Owner
  • Owner desires a single point of responsibility

Advantages

  • Opportunities for innovation
  • Single point of accountability (contractually and functionally)
  • Owner gets ‘Performance Guarantee’
  • Streamlined process
  • Accelerated schedule
  • Fixed price early in process

Challenges

  • Limited Owner involvement
  • Increased potential for change orders & claims
  • Less ability to make design changes
  • Owner disconnected from Designer
  • Lengthy and costly bridging documents phase
  • Lump Sum price may not reflect final cost

Active Projects

Active Project Documents

I-10 Broadway Curve Project
I-10 Kino to Country Club Project

Completed Projects

  • SR 189 Improvements (2022)

Program Guidance

  • ADOT Design-Build Procurement and Administration Guide -- coming soon
  • Design-Build Contract Template -- coming soon

Resources

Arizona Revised Statute 28-7363: Design-Build
Design-Build Institute of America
FHWA Design-Build Project Delivery

Frequently Asked Questions

Coming soon!

Contact Us

General Phone: (602) 712-4258