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
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