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Channel Lining – Options and The Investment Decision Bradley Rudsits | Principal Water Engineer.

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Presentation on theme: "Channel Lining – Options and The Investment Decision Bradley Rudsits | Principal Water Engineer."— Presentation transcript:

1 Channel Lining – Options and The Investment Decision Bradley Rudsits | Principal Water Engineer

2 Channel Lining and the Investment Decision Messages The key highlights within this presentation Water losses = Bad Channel Liners = Turn bad in good Multi Criteria Analysis = How to get everyone to agree on the good

3 Is there actually a water loss? Progression to water savings

4 Channel Lining and the Investment Decision Water Savings – Increased Revenue Potential

5 Channel Lining Types, benefits and costs

6 Channel Lining and the Investment Decision Flexible Membrane Liners (Plastic)

7 Channel Lining and the Investment Decision Flexible Membrane Liners (Rubber and Bituminous)

8 Channel Lining and the Investment Decision Concrete Liners

9 Channel Lining and the Investment Decision Earthern Liners

10 Channel Lining and the Investment Decision And they (generally) cost…

11 Multi Criteria Analysis How to get the right answer

12 Channel Lining and the Investment Decision Multi Criteria Analysis Tools (MCA) Get the right people involved Definition Weightings Scoring Sensitivity Presentation

13 Channel Lining and the Investment Decision Criteria Definition Getting the right people gives the right answer –What do they want a channel liner to achieve? –Less leaks? –More capacity? –Easy to clean? Definition Weightings Scoring Sensitivity Presentation

14 Channel Lining and the Investment Decision Criteria Weightings Rules of the Game The 4 L’s Has to cover 100% Definition Weightings Scoring Sensitivity Presentation Criterion 1Criterion 2Criterion 3SumWeight Criterion /18 = 50% Criterion /18 = 30% Criterion /18 = 20% Total 18100% Table 1Matrix Example CriterionDescriptionWeighting 1Capital Cost40% 2Operational20% 3Social Impact – Safety, nuisance40% Table 1Agreed Weightings Love it Like it Live with it Loathe it

15 Channel Lining and the Investment Decision Scoring –Quantitative – “look at the technical specification, this ones heaps more betterer” Definition Weightings Scoring Sensitivity Presentation

16 Channel Lining and the Investment Decision Sensitivity or “What if” Definition Weightings Scoring Sensitivity Presentation

17 Channel Lining and the Investment Decision Presentation Definition Weightings Scoring Sensitivity Presentation

18 Channel Lining and the Investment Decision Presentation Definition Weightings Analysis Sensitivity Presentation

19 Channel Lining and the Investment Decision Presentation Definition Weightings Analysis Sensitivity Presentation

20 Channel Lining and the Investment Decision Examples Some recent projects through which GHD has applied this: Northern Victoria Irrigation = Polyethylene Murrumbidgee Irrigation Area = Concrete Ord Irrigation Scheme = Clay

21 Channel Lining and the Investment Decision Summary The key summary points Water losses = Bad Channel Liners = Turn bad in good Multi Criteria Analysis = Get everyone to agree on the good Comments and Questions?

22 Channel Lining and the Investment Decision


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