Ohio River Bridges – Downtown Crossing

1. Design Quality Plan Ohio River Bridges – Downtown Crossing Presented By: Vinay K. Polepalli, PE, MBA, PMP Richard Sutherland, PE Photo credit: kyinbridges.com

2. Presentation outline

3. INTRODUCTION Current QA/QC process

4. INTRODUCTION Drawbacks with the current QC/QA process

5. INTRODUCTION • ORB-DTC introduced new QC/QA approach… DQP = Design Quality Plan

6. INTRODUCTION KEY PROJECT STATS $860 M 27 10 13 8300 217 517 As-Built Plans Reports Plans 217 184 116

7. Design Quality Plan implemented at various stages of plan submittals Design submittals:

8. The design quality program consisted of several steps: Steps in the Design Quality Process

9. ProjectWise

10. Document Control ProjectWise Folders

11. TWO STEP QC/QA PROCESS

12. QC/QA Process • Quality Checking (QC) • Quality Assurance (QA)

13. QC PROCESS Color Code Key Verified Error Correct Comment or instruction

14. QC PROCESS Roles during Checking – at least 2 sets of eyes

15. QC PROCESS Checking Process Examples Example #1 Example #2 Example #3

16. QC PROCESS Check Print Stamp • Checker, Backchecker, Corrector and Verifier initial the check print stamp

17. QC PROCESS Checking Process Inter-Discipline Design Checking (IDC)

18. QC PROCESS IDC Review Print Stamp • IDC stamp is initialed by all the discipline leads who reviewed the plans

19. QA PROCESS Document Requirements for various submittals • DQA Form, completed by DQM to document audit. • Plan Sheets and Special Provisions are signed and sealed for RFC in accordance with DQP • 3. Field Design changes During Construction, do not require QA audits if design documents are not re-released. However, if these documents need to be re-released (RFC’d) then audit procedures need to be followed. • 4. The STM determines the need for supporting calculations and internal reviews based on the significance/magnitude of the change. KYTC reserves the right to request and review supporting calculations

20. QA PROCESS Certification DQA (Design Quality Audit Checklist) Form was used to perform, record, and certify the audit.

21. QA PROCESS Certification

22. QA PROCESS DQA Certification

23. Design Review and Comment Comment Resolution

24. QC/QA PROCESS – RCSR Form

25. Last Step - As-built drawings

27. EXAMPLES Sample QC Plan with RYG colors

28. EXAMPLES Sample QC Calculations with RYG colors

29. EXAMPLES Audit comments • On PDF page 4 of 53 in Check Print set, for TYPICAL SECTION (SPAN 1) DETAIL, for the “left shoulder” the text “VARIES” was struck out. However, on PDF page 4 of 56 on Clean Plan set, this text appears. Please look into this and fix it accordingly. • Corrected. • On PDF page 27 of 53 of Check Print, for “TYPICAL SECTION AT IEB 1 SB” detail on the top left hand corner, the markup show “5-5S14e and 5S16e @” However, on clean Plan Set, on PDF page 27 of 56, the label shows only “5 – 5S16e”. Please look into this and address it accordingly. • Also, for the same detail, a markup on Check Print shows “@ 12” = 3’ – 2 ½” “. However, on the clean plan set, the text shows up as “ @ 12” = 4’ – 0” “ Please look into this and correct accordingly. • Corrected. • For the same detail, near the “BEAM LINE 12” the markup shows “STET” however, the correction was made on the clean plan set on PDF page 34 of 56. Please look into these and address them accordingly. • Corrected.

30. Benefits of Independent QA

31. Benefits of formal QC/QA

32. Benefits to design team

33. Benefits to contractor

34. Benefits to the KYTC

35. Are there any downsides? DOWNSIDES:

36. 3 Steps to creating a formal QC/QA Program Vinay K. Polepalli, PE, MBA, PMP – 502-296-2534 Richard Sutherland, PE – 859-422-3000

37. Questions & Answers