Transcription
2/2/2018Buried Infrastructure AssetManagementP. S. Arora, P.E.Director Wastewater UtilitiesCity of Denton, Texas1
2/2/2018Presentation Scope Why asset management Software tools used in Denton asset management plan Detail discussion of asset management plan Benefits derivedPlanningHydraulicModelingAssetFramework rySolutionsOperations &MaintenanceDenton’s Collection System Has Expanded to MatchPopulation 0,000First sewer lines wereconstructed around theCourthouse in the early 1900s80,0001,500,00060,0001,000,000Linear Feet of Gravity Sewer 0002010Gravity Main2
2/2/2018Why Asset Management Substantial investment in wastewater collection system assets ( 0.5Billion) Limited dollars for O&M and replacement Good steward of the environment, SSO reduction Work smarter High employee morale Lower rates, happy ratepayersSoftware Tools Used in AM ESRI GISPipeworks/Cityworks CMMSHydroworks/Infoworks Capacity ModelsWERF SCRAPS Prioritization ModelCapPlan/Infomaster Asset Management ModelOperations staff buy inAddition of IT/Database professionalCMOM Program3
2/2/2018How Denton Uses CityworksWork orders for: Flushing program CCTV Point repairs Service line replacements Main line replacements Customer calls Odor complaints Chokes and overflows Manhole inspectionsEVERY ACTIVITY IN THE COLLECTIONSDEPARTMENT IS ENTERED AS A WORKORDER!Cityworks Combined with GIS for Flushing Program Example4
2/2/2018Info Works Model to Plan Capacity5 Year Capital Improvement Plan5
2/2/2018Success of Wet Weather ProgramSCRAPS Model Using Probability and Consequence of Failure SCRAPSprovides a numerical ranking from 0 to 100 for each pipesegment, highest being worst Began focusing inspection and preventative maintenance inareas with higher risk based on the SCRAPS output Feedback from the field allowed for data corrections whichbrought down the average risk in the collection system6
2/2/2018Benefits of Digital Database of Collection System ThatAccrued from Implementation of SCRAPS Model7
2/2/2018Collection System by Install Year8
2/2/2018Basin Cleaning PrioritizationEnter CapPlan Sewer SCRAPS Model provided valuablepriority ranking It is not a complete asset managementsystem The next step was then to move to fullasset management system9
2/2/2018Denton’s InfoMaster Flow Chart (simplified)Denton’s InfoMaster Flow Chart (full)10
2/2/2018A Typical PipeInfoMaster Recommends Individual Repairs11
2/2/2018InfoMaster Results Tell the Pipe Condition Story12
2/2/2018Information Management is atthe Heart of AM StrategiesKey O&M Strategies Drive SuccessTargeted CleaningQuick Cam CCTVFeetInspected800,000CCTVQuick Lock Point RepairQuick 00‐2013201420152016201713
2/2/2018Metrics Drive PerformanceMaintenance and InspectionRepair and ReplacementCustomer Service Focuses on Reducing SSOs and SewerLine ChokesCS Metric – 1 Choke/1000 customers/yr.CS Metric – 3 SSOs/100 miles/yr.14
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2/2/2018Contact:P. S. Arora, P.E.Director Wastewater 917
Buried Infrastructure Asset Management P. S. Arora, P.E. Director Wastewater Utilities City of Denton, Texas. 2/2/2018 2 Presentation Scope Why asset management Software tools used in Denton asset management plan Detail discussion of asset management plan .
