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WISDOT Mega Projects Lessons Learned. Ryan Luck P.E. Speaker 2 Name Speaker 3 Name. Lessons Learned Owner’s perspective. To Reduce Cost over runs Schedule delays To Enhance Safety Constructability Quality. Mitchell Interchange. 27 th Street U-Ramps.

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WISDOT Mega Projects Lessons Learned


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    1. WISDOT Mega ProjectsLessons Learned Ryan Luck P.E. Speaker 2 Name Speaker 3 Name

    2. Lessons Learned Owner’s perspective To Reduce • Cost over runs • Schedule delays To Enhance • Safety • Constructability • Quality

    3. Mitchell Interchange

    4. 27th Street U-Ramps

    5. Mitchell Interchange – Tunnels

    6. Tunnels - Structural Interface

    7. Tunnels – Drilling Guides

    8. Tunnels – Secant Shafts

    9. Tunnels – Drilling Equipment

    10. Tunnels – Secant Shafts

    11. Tunnels

    12. Tunnels - Excavation

    13. Tunnels – Beam Erection

    14. Tunnels

    15. Tunnels – Secant Shafts

    16. Tunnels – Temporary Connections…..

    17. Tunnels – Lighting

    18. Tunnels – Completed

    19. Mitchell Interchange • 14 Bridges - Includes 3 tunnels • 29 Retaining Walls • 44 Sign Bridges • 7 Noise Barriers • 1,375,000 CY of Common Excavation • 10 miles of mainline and system ramps

    20. Design Level of Complexity Correspondence: Items Logged

    21. Lessons Learned Owner’s perspective Interface and integration is the key: • Structures (size, type, procurement) • Roadway (access, grading, drainage) • Storm sewer (depth, temp connections) • Electrical systems (aesthetics, plans) • Utilities (new vs. old, relocated, as-builts) • Preliminary stage work (season, quality) • Weather (markings, stage changes)

    22. Program Delivery: IPD - BIM Building Information Modeling (BIM) • Collaboration • 3D Visual • Prefabrication • Improved Design Documents • Quantity extraction • Visual scheduling • Phasing Plans • Coordination • E-Turnover/Archives

    23. Use of 3D design for integration “clash” detection • Quality Control – Tool • Clash Detection, Reveals Interface Issues • Reduce Project Risk – Cost/Schedule • CPM Schedule - Near Critical Tasks – Cascading Impact • Visualization Tool • Public, Stakeholders • Technical – • Contractor/Engineer • Utilities

    24. Tunnels – Building Information Modeling (BIM)

    25. Tunnels – BIM

    26. Integration Example Structures & Landscaping

    27. Integration Example Structures and Roadway safety

    28. Integration Example Structures and Roadway safety

    29. Utility InterfacesExisiting vs. Proposed

    30. Utility Interfaces

    31. Utility Interface Watermain at 20th St. Bridge

    32. Water Main Proximity to Tiebacks for R-40-409 Wall

    33. R-40-409 Retaining Wall Interface Complexity

    34. R-40-409 Retaining Wall

    35. R-40-409 Retaining Wall

    36. R-40-409 Retaining Wall

    37. R-40-409 Retaining Wall

    38. R-40-409 Retaining Wall

    39. R-40-409 Retaining Wall

    40. R-40-409 Retaining Wall

    41. R-40-409 Retaining Wall

    42. R-40-409 Retaining Wall

    43. R-40-409 Retaining Wall

    44. R-40-409 Retaining Wall

    45. R-40-409 Retaining Wall

    46. R-40-409 Retaining Wall

    47. R-40-409 Retaining Wall

    48. 3D/4D design tools Interface Emphasis • Staging – Project/Program • Temporary Roadways • Temporary drainage connections • Preliminary phase construction • Temporary Fills, Drainage, Lighting,…. • Partial Construction • Access in and out of work zone • Staging areas

    49. Quality plans address…. • Look for and resolve Interface Issues • Within Project • Between Projects • Manage Earthwork holistically • Deliver Aggressive Schedule with consideration for weather

    50. Mitchell Interchange – BIM to Reality