ACCELERATED BRIDGE CONSTRUCTION (ABC): THE KEYS TO SUCCESS FROM AN OWNERS PERSPECTIVE

Presented byJames McMinimee, P.E., P.S.E.UDOT Chief Engineer, Director of Project Development

Learning OutcomesBy the end of this Module, you will be able to:• identify customer needs from a Utah

perspective• recall the benefits of using PBES• recall the concept of user costs• identify associated risks from Utah’s

perspective• identify lessons learned

Utah• Small State– 2.5 M people– $350 M Federal Program– DOT 1650 employees

• Big Transportation Program– 250+ projects– $2.0 B+ under construction

UDOTs Need for Speed• Customer driven culture• Implement new technologies:

– Accelerated Bridge Construction– Accelerate Pavement Construction– Diverging Diamond Interchanges

• Increased partnerships• Match Legislative tempo

Department Themes• Accelerate Delivery• Decrease and Minimize Detours or

Delays• Encourage Innovation that speeds project or

provides value• Get a Good Price

Balance of good price vs. other themes

New Business Model

• Societal Costs Minimized • Lowest Construction Cost Lowest Project Cost

• Public Praise• Political Capital

What is PBES from a Utah perspective?

• Innovative methods to decrease bridge construction time

• Build elements offsite/outside traffic area• Transport to site and install rapidly

• UDOT has over 170 bridges total, completed or under construction that utilized ABC*• Self Propelled Modular Transports: 6 Projects/19 Bridges• Half Thickness Precast Deck Panels: 5 Projects/74 Bridges• Full Depth Precast Deck Panels: 15 Projects/21 Bridges• Precast Voided slabs: 1 Project/2 Bridges• Approach Slab Panels: 10 Projects/15 Bridges• Precast Sleeper Slabs 10 Projects/15 Bridges• Precast Abutments: 3 Projects/5 Bridges• Precast Bent Caps: 2 Projects/2 Bridges• Precast using Sliding: 5 Project/10 Bridges

• Precast Box Culvert: 3 Projects/7 Bridges• Heavy Lift Cranes: 3 Projects/4 Bridges

UDOT ABC History

Innovative Technology

• First implementation costs more• Potential for new methods to cost less• Promise of time savings• Positive cost-benefit ratios• Promise of programmatic cost savings

Costs of PBES

Operation Staging AreasBridge Farm @ 1300 East

• 7 Superstructures Constructed in a Single Location

Risk Identification – Owner, Contractor and Engineer

• Identified 5 Categories w/ 135 Items: – Carrier Beam

• Perform 2 independent QCs– Utilities

• Shutting down large H2O line– Travel Path

• Verify/confirm travel over new bridges– Geotech

• Re-evaluate projected utility/wall stresses– Launch

• Re-evaluate all assumptions

2009 Slide-ins= Innovation

Public Perceptions

Stakeholders' OVERALL Satisfaction With Project Results(1=not satisfied, 7=very satisfied)

5, 2.80%

6, 18.30%

7, 76.10%

1, 0.00%

2, 0.00%

4, 1.40%3, 1.40%

1

2

3

4

5

6

7

• Get Department Leadership Committed and Involved • Provide Adequate Contractor discussion • Obtain Funding for Demonstration Projects• Plan a program of projects – not just 1• Use Innovative Contracting• Scanning Tours• Communicate with Industry, Utilities, Local

Governments and Your Agency

Lessons Learned and Best Practices- State perspective

Lessons Learned and Best Practices• Engage the industry A

Culture or innovation

• You will know success when Regions and contractors are using and improving Innovation without central prompting

• ABC - SPMT, Precast, Improvements in Slide-in Projects.

Module ConclusionYou should now be able to:• identify customer needs from a Utah

perspective• recall the concept of user costs• identify associated risks from Utah’s perspective• identify lessons learned and best practices

Polling Questions

• What are 3 best practices for implementing PBES

Module Conclusion

QUESTIONS & DISCUSSION