Stormwater Drainage Asset Management Plan - District Council of ...

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- 18 -• Discussions with staff• Analysis of stormwater network data• Previous history of high rainfall events leading to flooding5.1.3 Asset conditionThe condition profile of Council’s assets is shown below.22%2%12376%Figure 5.1.3a Asset Condition ProfileCondition is measured using a 1 to 5 rating system as described below:ConditionIndexAge or Visual ConditionRemaining Life(Yrs)Condition Description1 Very Good 75 Brand New or Very Good. Providing a Very High Level ofService.2 Good 55 Good condition with no indicators of any future obsolescence andproviding a good level of service3 Fair 40 Aged and in fair condition providing an adequate level of service.No signs of immediate or short term obsolescence.4 Poor 15 Will need to renew, upgrade or dispose in near future. Is reflectedvia inclusion in the 5 year Capital Works Plan.5 Very Poor 5 Below an acceptable level of service. Requires renewal/upgradeimmediately within the following year or so.5.1.4 Asset valuationsTable 5.1.3b Condition Rating DescriptionThe value of assets as at June 30, 2008 covered by this infrastructure asset management plan issummarised below. Assets were last revalued at June 30, 2008. Assets are valued at green-field ratesCurrent Replacement Cost $23.71MDepreciable Amount$23.71MDepreciated Replacement Cost $20.73Annual Depreciation Expense $0.27MDistrict Council of Mount Barker – Stormwater Drainage Infrastructure Asset Management Plan
- 19 -Council’s sustainability reporting reports the rate of annual asset consumption and compares this to assetrenewal and asset upgrade and expansion.Asset Consumption 87%Asset Renewal100% (estimated target)Annual Upgrade/expansion -Council is currently undertaking flood mapping of the district to determine network capacity issues andsubsequent asset upgrade requirements. Until this master planning is complete, Council is unable toprovide any further detail on expansion plans.Based on current growth rates, Council expects an estimated gifted asset value of $814K per annum overthe next six years.5.2 Risk Management PlanAn assessment of risks 2 associated with service delivery from infrastructure assets has identified criticalrisks to Council. The risk assessment process identifies credible risks, the likelihood of the risk eventoccurring, the consequences should the event occur, develops a risk rating, evaluates the risk anddevelops a risk treatment plan for non-acceptable risks.Critical risks, being those assessed as ‘Very High’ - requiring immediate corrective action and ‘High’ –requiring prioritised corrective action identified in the infrastructure risk management plan aresummarised in Table 5.2.Asset at Risk What can Happen RiskRating(VH, H)Risk Treatment PlanGPTs Blockage H Identify the location and cleaning frequencies of all GPTs asper manufacturer’s instructions. Allocate resources to thetask.Pipes Exceed capacity H Undertake stormwater master planning to determine areasin need of critical upgrade.5.3 Routine Maintenance PlanTable 5.2 Critical Risks and Treatment PlansRoutine maintenance is the regular on-going work that is necessary to keep assets operating, includinginstances where portions of the asset fail and need immediate repair to make the asset operational again.5.3.1 Maintenance planMaintenance includes reactive, planned and cyclic maintenance work activities.Reactive maintenance is unplanned repair work carried out in response to service requests andmanagement/supervisory directions.Planned maintenance is repair work that is identified and managed through a maintenance managementsystem (MMS). MMS activities include inspection, assessing the condition against failure/breakdownexperience, prioritising, scheduling, actioning the work and reporting what was done to develop amaintenance history and improve maintenance and service delivery performance.2 District Council of Mount Barker’s Infrastructure Asset Risk Management PlanDistrict Council of Mount Barker – Stormwater Drainage Infrastructure Asset Management Plan
Page 1 and 2: Stormwater DrainageAsset Management
Page 3 and 4: TABLE OF CONTENTSTABLE OF CONTENTS
Page 5 and 6: - i -ABBREVIATIONSAAACARIBODCRCCWMS
Page 7 and 8: - ii -necessary to place the asset
Page 9 and 10: - iv -Recurrent expenditureRelative
Page 11 and 12: - 2 -The Next StepsThe actions resu
Page 13 and 14: - 3 -CouncilSenior ManagementCorpor
Page 15 and 16: - 5 -Objective 41: The construction
Page 17 and 18: - 7 -organisational requirements fo
Page 19 and 20: - 9 -• Supporting the community s
Page 21 and 22: - 11 -Figure 3.3c indicates that th
Page 23 and 24: - 13 -EnvironmentalAwarenessMinor c
Page 25 and 26: - 15 -5. LIFECYCLE MANAGEMENT PLANT
Page 27: - 17 -Length of Stormwater Pipes by
Page 31 and 32: - 21 -Planned Maintenance Expenditu
Page 33 and 34: - 23 -5.5 Creation/Acquisition/Upgr
Page 35 and 36: - 25 -6. FINANCIAL SUMMARYThis sect
Page 37 and 38: - 27 -Projected Asset Replacement V
Page 39 and 40: - 29 -7. ASSET MANAGEMENT PRACTICES
Page 41 and 42: - 31 -this information can be easil
Page 43 and 44: - 33 -8. PLAN IMPROVEMENT AND MONIT
Page 45 and 46: - 35 -District Council of Mount Bar
Page 47: - 37 -Appendix A - Map: Distributio

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