Challenges in Green Infrastructure Design and Associated Failure Modes,
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Challenges in Green Infrastructure Design and Associated Failure Modes, or how to get the most out of planned stormwater controls. Robert Pitt, Ph.D., P.E., D.WRE, BCEE Department of Civil, Construction, and Environmental Engineering University of Alabama Tuscaloosa, AL, USA 35487. - PowerPoint PPT Presentation
Transcript of Challenges in Green Infrastructure Design and Associated Failure Modes,
SLAMM Workshop Rochester, NY August 15 and 16, 2001 3) Controls for Stormwater
Challenges in Green Infrastructure Design and Associated Failure Modes, or how to get the most out of planned stormwater controlsRobert Pitt, Ph.D., P.E., D.WRE, BCEEDepartment of Civil, Construction, and Environmental EngineeringUniversity of AlabamaTuscaloosa, AL, USA 35487
1Dozen Issues of ConcernPoor AssumptionsCloggingCompactionChemical BreakthroughSodium Adsorption RatioImproper Sizing and LocationsGroundwater Interactions
Improper ConstructionPoor MaintenanceAnaerobic ConditionsLarge Underdrains and Short-CircuitingNeed Combinations of Controls and Unit Processes1) Real Data May Not Support Traditional Urban Hydrology Assumptions Many agencies and stormwater managers focus on single design storms that do not adequately represent the long-term discharges of water and pollutants during wet weatherLegacy of drainage design approachesSeattle Rains:
