Design Review and Construction Monitoring JT.pptx

Design Review and Construction Monitoring Presentation

1. 21 April 2016 DESIGN – CONSTRUCT CONTRACTS MWH Design Review and Construction Monitoring Workshop Presented by Joanna Towler

2. Design Construct DLP / DNP Annual and Forward Works Programme

3. Structure of workshop Annual and Forward Works Programme Overview of current Design Review practice Objectives and Outcomes Risk Review Monitoring throughout the process Resources Communication Documentation

4. 1. Development of the Programme Annual Programme and Forward Works Programme Sites and locations based Asset Management information Subjective information based on stakeholder input Scoping survey by MWH & Contractor Start and end chainage Pavement treatment Drainage Improvements

5. 1. Development of the Programme Proposed treatments recommended to FRA? Review treatments and designs against previous commitments to Stakeholders?

6. 2. Overview of current practice Contractors submit Road designs to MWH for review Maintenance renewals and Capital works Initial screen by Iain Banks High risk designs passed to MWH Senior designers Lower risk designs confirmed by MWH in principle MWH Comments addressed by MWH and Contractor on site Further amendments submitted to MWH for final approval Contractor confirms acceptance and proceeds

7. 3. Objectives and Outcomes Questions to consider: What Outcome does the FRA expect? Certainty of Delivery against commitments e.g. Budget Asset integrity over design life Wise allocation of financial resources Enhance reputation with Stakeholders and Government

8. Questions to consider: What does MWH do to achieve FRA Objectives? Design review Risk management – which risks? Construction monitoring Quality Assurance? Contractor performance management Liaison with Stakeholders

9. Questions to consider: What does the Contractor do to achieve FRA Objectives? Design and construct Construction risk management Construction self monitoring? Quality Control? Site liaison with Stakeholders Deliver on time and on budget, according to the agreed Programme of works

10. 4. RISK High level risks? High and / or overweight traffic volumes Steep gradients Soft subgrades

11. 4. RISK High level risks? Subject to flooding Poor drainage Complex pavement treatments

12. 4. RISK High level risks? Sensitive sites Significant changes in geometry Existing flushed surfaces? Extensive structural repairs required (>100m 2 )?

13. 4. RISK Low level risk? Low traffic volumes flat gradients firm subgrades adequate drainage unbound pavements? Existing AC surfacing? Existing Chipseal surfacing?

14. 4. RISK Risk Mitigation Document Risks for each proposed treatment site Contractor and MWH together? Contractor only Proposes mitigation? Confirm whether initial treatment selection can address Risks? Contractor includes mitigation in proposed Design MWH Propose suitable Construction phase mitigation? Inspection and Testing Hold Points Approvals to Proceed

15. Design Construct DLP Annual and Forward Works Programme

16. 5 . Design Review process Design and d esign review

17. Discussion Design and design review receive designs and related information from the Contractor review the design confirm that the design is/is not acceptable Issue Request for Information (RFI) to Contractor Issue Approval to Proceed (ATP) back to the Contractor (if design is acceptable)

18. Design Construct DLP Annual and Forward Works Programme

19. Design Construct DLP Annual and Forward Works Programme

20. 6. Construction Monitoring Random inspections & inspections when Contractor calls. Documentation of site visits Preseal inspection (only true hold point inspection) Claim/audit each month [Central]: Issue an NTC agreeing it is completed, lists minor/outstanding defects that need attention Further NTC at end of DLP/DNP, confirming completed

21. Discussion Back to the designer?

22. Checklists and hold points Specific to the RFT The designer specifies the hold points Consult with specialists in: Pavement Chipseal Safety Geometry Drainage Layout Services

23. Resources Who are the “go to” people for each level of Review? Who is the design reviewer? Designer goes to a specialist as required.

24. Different requirements for [discussion] For reseals, rehabs, maintenance, Different requirements of NZS 3910 vs FIDIC Different design requirements for different types of road NTC FHH 536 + 19tonne axle overloading 3 designs must be given full checks: 4, 4A and extreme overloading. Programme for individual Contractors

25. Risk management and failures Failures and what to do with them. E.g. FH on transinsular road. Surface conditions, underlying pavement, etc, etc. Risk mitigation for the Client.

26. Training and development Identify gaps in team’s knowledge and expertise Develop a training plan to fix the gaps

27. Design Construct DLP Annual and Forward Works Programme

28. Design Construct DLP Annual and Forward Works Programme

29. Monitoring Random inspections & inspections when Contractor calls. Documentation of site visits Preseal inspection (only true hold point inspection) Claim/audit each month [Central]: Issue an NTC agreeing it is completed, lists minor/outstanding defects that need attention Further NTC at end of DLP/DNP, confirming completed

30. Monitoring Random inspections & inspections when Contractor calls. Documentation of site visits Preseal inspection (only true hold point inspection) Claim/audit each month [Central]: Issue an NTC agreeing it is completed, lists minor/outstanding defects that need attention Further NTC at end of DLP/DNP, confirming completed

31. 7. Communication and Documentation Communication between those working on the contract Agreement on filing structure between teams

32. 8. Documentation Documentation and filing of inspections and approvals. Close-out at the end of the DLP.

33. Conclusion Workshop summary Where we are at with the draft “ Design Review and Construction Monitoring” process? Date(s) for follow-up task(s). Expected date of implementation?