Social impact Liabilities Negative publicity BLDG 6921 Water main break on Pie

Social impact liabilities negative publicity bldg

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Social impactLiabilitiesNegative publicityBLDG 6921Water main break on Pie IX Blvd.(12/08/02)BLDG 6921
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6Water main break on Pie IX Blvd.(12/08/02)BLDG 6921Watermain break on Pie IX Blvd.in numbersWater loss : 93 500 000 liters ( 93 500 m3 )Equivalent : 1850 pools (24 ft long)Flow at break : 8 000 litres/sec.Equivalent : to filling a 24 ft pool in 6,25 sec.Equivalent : to simultaneouly opening 150 hydrants22,000 Montrealers affected by loss of water;50,000 Montrealers affected by important loss of water pressure for fire protection;Potable water distribution to population : 1 558 000 litresCity personnel affected by the catastrophy : 450 employees40 houses flooded;102 911calls received (first 8 hours);304 claims against the cityBLDG 6921
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7Costs Due to Water Loss and Breaks ( Potential Savings ) HamiltonTorontoOttawaRosemereYear2009200920092005Cost of water ($/m3)1,031,891,260,32Water loss (m3/yr)21,808,75048,000,0003,700,0001,054,270Total cost from water loss$22.6M$90.8M$4,7M$0.3MNumber of breaks27196825133Cost per break$7,500$10,000$7,500$5,000Total costs from breaks$2.0M$9.7M$1.9M$0.2MTotal cost due to water loss and breaks$24.6M$100.5M $6.5M $0.5M CERIU paper - No Dig 2010, Chicago, ILBLDG 6921Need to solve hydraulic & or structural problem;Need to prolong life of water main;Presence of service connections;Pipe located in built up urban environment or environmentally sensitive area;Newly paved road;Require rapid trenchless installation;Need to minimize social costs;$ savings.What are the Drivers for Trenchless Renewal ?BLDG 6921
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8Save construction time;No need to displace utilities;No need to cut down mature trees;Preserve life of pavement;Continued access to homes, businesses and traffic;Provide safe environment;Save $.Motivating factors?BLDG 692116What We Are All Trying to AvoidBLDG 6921
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9BLDG 6921BLDG 6921
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10Liner Classification (AWWA M 28 Manual)Class I LiningsNon StructuralCML, epoxy liningClass II Linings*Interactive & Semi StructuralLinings, sliplining, modified slipliningClass III Linings*Interactive & Semi StructuralLinings, sliplining, modified sliplining,CIPPClass IV LiningsFully Structural or Structurally IndependentCIPP, sliplining, HDD, PB* All loads transferred to host pipeBLDG 6921 CC 21812. Water Main Rehabilitation Technologies and OptionsNon StructuralIn Situ Spray on LiningStructuralCured-in-Place PipeSliplining (will not be presented)Sleeves (will not be presented)New InstallationsPipe Bursting (will not be presented)HDD (will not be presented)Tunneling techniques (will not be presented)StabilisationPassive and Cathodic (will not be presented)BLDG 6921
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11Potable Water Systems:Distribution systems150 300 mm diaSmall diameter services presentCIPP - technology of choiceTransmission systems> 350 mm diaNo servicesTechnologies available: CIPPSlipliningPipe burstingHDDBLDG 6921OptionsTrenchless rehabilitationStructural CIPP;Proven technology.
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