Work Zone Safety Using Accelerated Bridge Construction (ABC)

1. Work Zone Safety Using Accelerated Bridge Construction (ABC) Rukhsana Lindsey, UDOT Presented by Jim McMinimee Principal Engineer, Applied Research Associates

2. Utah • Small State • 2.5 M people • $350 M Federal Program • DOT 1650 employees • Currently 6% unemployment statewide • Big Transportation Program • 250+ projects • $3+ B under construction

3. Our Need for Speed • Customer driven culture • Willing to take risks • Implement new technologies: • Accelerated Bridge Construction • Accelerate Pavement Construction • Diverging Diamond Interchanges • Increased partnerships

4. 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

5. Societal Costs Minimized • Societal cost model includes safety costs • Lowest Construction CostLowest Project Cost • Public Praise • Political Capital New Business Model

7. I-15 Design Build a Case Study in Project Acceleration • I-15 Design Build – SEP 14 • $1.6 B Contract • 17 Miles, 130 Bridges, 7 Urban/3 Interstate Interchanges • 10 Year Maintenance Period • Drivers for Project • Public Support – 4 Years Instead of 9 Years • 2002 Winter Olympics • I – 15 Incentives • Quality, Project Management, MOT, Early Completion • Potential $50M • Post Mortem User Cost Study UofU Dr Martin • USER COSTS SAVED > $500M • Saved estimated 4400+ accidents over Traditional • 14 Lives Saved

8. What is ABC? • Innovative methods to decrease bridge construction time • Build elements offsite/outside traffic area • Transport to site and install rapidly

9. Benefits of ABC • Minimized traffic disruption – from months to days • Improved work zone safety – improved worker safety • Improved product quality – controlled environment, cure times, easier access, etc.

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

11. Utah Precast Deck Panel Projects

12. Family of Innovative ABC Elements and Methods Innovative Accelerated Bridge Construction Precast Concrete Elements Modular Construction Structure Placement Methods Accelerated Geotech Work Fast Track Contracting

13. Benefits of ABC • Minimizes traffic disruption from months to days • Improves work zone and worker safety • User savings • Improves product quality • Controlled environment • Cure times • Easier access

14. Utah ABC Costs 18 projects $45M

15. Animation

16. Media Support

17. UDOT ABC History

18. ProjectsI-84 Riverdale Road; Lego Bridge

19. Projects800 North; Precast Deck Panels

20. Projects4500 South over I-215; SPMT

21. ProjectsEagle Canyon Bridge; Precast Deck Panels

22. 2009 Slide ins

23. 2009 Slide ins

24. ProjectsEcho Canyon Bridge; Slide-in

25. UDOT Research Study • Reviewing status of ABC Program • 161 ABC projects • Started with SPMT projects

26. Preliminary Results • 18 Accelerated Bridge Projects- SPMTs • Traffic impacts Closures and Detours of 2-3 days • Channelizing work zones of usual durations • Zero crashes within work zone(!) • Bridge built away from traffic with better worker safety and productivity. • One statistical surprise – Slightly more accidents after construction over.

27. Public Support for ABC Public Overall Satisfaction With Project Results (1 = not satisfied, 7 = very satisfied)

28. Questions?