Water Main Renewal Program

Please note that the table below is a first cut only. It based purely on the condition scores & useful lives contained within BRC's Asset Management System. It will need to be fine tuned and calibrated. Getting input into the program from a wide range of Council staff is vital.

Assumptions

PVC Pipes (UL=75 Years)

Condition RUL RUL Range (%) RUL Range (Years)
0 100% 98.5% 100% 74 75
1 97% 86.5% 98.5% 65 74
2 76% 67.5% 86.5% 51 65
3 59% 45.5% 67.5% 34 51
4 32% 22.5% 45.5% 17 34
5 13% 6.5% 22.5% 5 17
6 0% 0% 6.5% 0 5

Cast Iron & Ductile Iron Pipes (UL=80 Years)

Condition RUL RUL Range (%) RUL Range (Years)
0 100% 99% 100% 79 80
1 98% 89% 99% 71 79
2 80% 67% 89% 54 71
3 54% 40% 67% 32 54
4 26% 20% 40% 16 32
5 14% 7% 20% 6 16
6 0% 0% 7% 0 6

Vitreous Clay Pipes (UL=65 Years)

Condition RUL RUL Range (%) RUL Range (Years)
0 100% 98.5% 100% 64 65
1 97% 85.5% 98.5% 56 64
2 74% 63% 85.5% 41 56
3 52% 40.5% 63% 26 41
4 29% 20% 40.5% 13 26
5 11% 5.5% 20% 4 13
6 0% 0% 5.5% 0 4

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