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bridges and roads - life cycle cost analysis

  • 1.  bridges and roads - life cycle cost analysis

    Posted 06 June 2013 21:15
    I have been asked to undertake a "whole of life cost analysis" on two projects I am working on. The first one relates to replacing an existing small timber bridge with a one lane concrete or timber structure. The span of the bridge is approximately 15m, with very low volumes. The second one relates to a proposed log truck route. Does anyone have or know of some average or typical annual costs associated with the upkeep and maintenance of these types of structures over their lives.

    Any information would be greatly appreciated.

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    Jamie Fawkner
    Engineer
    TAS

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  • 2.  RE:bridges and roads - life cycle cost analysis

    Posted 13 December 2013 00:38
    Hi Jamie,

    I see you haven't got any responses to this query yet.  It doesn't really surprise me because I've tried to track down similar information in the past without much success. 

    You would think that with life cycle costing being such a key part of Asset Management that there would be heaps of tables showing average annual maintenance and operation costs for a range of asset types, but they seem to be as rare as hens teeth.

    The only thing I've ever come a cross is a rule of thumb of unknown veracity that you will spend an average of 1%-4% of the value of a building on maiatenance on it each year.

    Surely getting an answer to this type of question is something we should put our collective heads together on and try to solve?

    Regards,  

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    Wayne Eddy
    Strategic Asset Planning Coordinator
    City of Whittlesea
    BUNDOORA MDC VIC
    wayne.eddy@whittlesea.vic.gov.au
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  • 3.  RE:bridges and roads - life cycle cost analysis

    Posted 15 December 2013 22:40
    Been having a look at our figures.

    It seems as thought we spend about 0.15% of the replacement cost of our drainage network on drainage related maintenance each year, and about 0.6% of CRC on our roads.  I'd imagine the roads figure would be pretty low compared to other Councils, given the amount of growth we are experiencing and the resulting over-representation of very new assets in our asset profile.  Be very interested to hear what sort of figures other Councils can come up with. 

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    Wayne Eddy
    Strategic Asset Planning Coordinator
    City of Whittlesea
    BUNDOORA MDC VIC
    wayne.eddy@whittlesea.vic.gov.au
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  • 4.  RE:bridges and roads - life cycle cost analysis

    Posted 18 December 2013 03:24
    Hi, Glad to share some figures from Hume City Council. These are annual maintenance cost figures as percentages of their Current Replacement Costs (CRC). I believe few figures are pretty low! Roads including Kerb & Channel, Carpark: 0.18% Footpaths: 0.08% Bridges: 0.08% Parks and Open Space: 9.84% Buildings: 0.72% Drainage: 0.10% (Most of the maintenance budget is being spent for operational works. Average age of the drainage network is 25 years). Best Regards, ------------------------------------------- Mohammad Rashid, Ph.D. Coordinator Asset Management Hume City Council BROADMEADOWS VIC -------------------------------------------
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  • 5.  RE:bridges and roads - life cycle cost analysis

    Posted 19 December 2013 06:20
    Thanks for the figures, Mohammad.

    I reckon if a few more people contribute figures we are going to see a lot of variation with footpaths.  I know we tend to do a lot of single panel replacements under maintenance, which is going to drive our percentage up compared to Councils that renew longer sections of footpath, and do less works under maintenance.

    Regards,

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    Wayne Eddy
    Strategic Asset Planning Coordinator
    City of Whittlesea
    BUNDOORA MDC VIC
    wayne.eddy@whittlesea.vic.gov.au
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