Maintenance Hole Renewal

Unitywater's Project 24160465

How many Maintenance holes are being treated?

122 in total

• 62 Civil - Needing replacement or lifting of the lid. 50 Northern and 12 Southern assets.

• 60 Coating - Internal prep and resurfacing due to Hydrogen Sulphide (H2S) gas attacks on internal walls, reducer slabs and necks. 560m2 of coating in total. 30 Northern and 30 Southern assets.

UW say these works will be delivered under a Model 3. What is a Model 3? What are the 4 Models?

Lump Sump

1. TOC - Target Outrun Cost

2. SOR - Schedule of Rates

3. Lump Sum

4. Reimburseable

When does Construction Start and Finish

16th of Feb to 25th of August

What are the 5 parts to the pricing schedule?

1. Preliminary Services (Subcontractor)

2. General

3. Civil

4. Coating

5. Schedule of Rates

What is a polymer

A polymer is a large chemical compound formed by the polymerization of many smaller units called monomers. Polymers can be either natural, such as DNA and proteins, or synthetic, like plastics such as polystyrene. They consist of long, repeating chains of molecules, which give them unique properties that can be tailored for various applications. Common examples of polymers include rubber, nylon, and polyethylene, which are used in a wide range of products from clothing to packaging materials

What is a Dilapidation survey?

A detailed inspection and documented record of the current condition of a property before construction or demolition works. It gives photographic record of nearby buildings and their surroundings.

What are the 10 delivery principles for an Engineers?

1. Engage in Safety meetings and ensure Zero Harm plans are implemented and monitored

2. Understand contract scope, obligations and entitlements

3. Notify Manager of scope changes or delays

4. Follow Downer Delivery Management Methodology

5. Maintain progress, productivity and performance measurements and escalate abnormal trends or issues

6. Check the Supervisor’s daily reports for issues and follow up on actions

7. Maintain a diary of events, discussions and progress

8. Ensure quality requirements are understood and complied with

9. Use the Risk Register to identify actions and ensure risks are mitigated

10. Ensure subcontractors are informed of site requirements and are adequately supervised

What were the 7 documents received from UW for the initiation of the Project?

1. Draft Work Order

2. Prelim Services Order (PSO) & Work Request from Mike Basterfield to Paul Bowler

3. Overview map of the works (C-DR-002)

4. Detailed map of the works (C-DR-003)

5. BOQ Draft (D-BQ-001)

6. Concept Business Case (CBC) (D-CB-001)

7. Details on each Manhole (D-RG-001)