City of Lodi Storm Water Workshop k h Thursday November 5 2009 - PowerPoint PPT Presentation
City of Lodi Storm Water Workshop k h Thursday November 5 2009 Thursday, November 5, 2009 LID Success Green Streets why? Creative ways to: Maintain / Restore Storage Volume / g interception, channel, depression
City of Lodi Storm Water Workshop k h Thursday November 5 2009 Thursday, November 5, 2009 LID Success “ “Green Streets” ”
why? • Creative ways to: – Maintain / Restore Storage Volume / g • interception, channel, depression – Maintain / Restore Infiltration Volume / – Maintain / Restore Evaporation Volume – Maintain / Restore Runoff Volume a ta / esto e u o o u e – Maintain Flow Paths – Supplement Water Use Supplement Water Use
current methods/limitations • Economics – Cost of Maintaining a Growing / Aging Infrastructure • New Objectives (Public Health / Ecological) – Source Water, Living Resources /Streams – Regulations • NPDES / TMDL’s / ESA
LID ~ creative techniques • Bioretention / Rain Gardens • Parking Lot / Street Storage • Sidewalk Storage • Strategic Grading • Smaller Culverts, Pipes • Vegetative Swales, Buffers & Inlets & Strips • Site Finger Printing g g • Amended soils • Infiltration Swales & • Resource Conservation Trenches • Alternative materials • Flatter Wider Swales • Eliminate Curb and Gutter • Tree Box Filters • Flatter Slopes • Shoulder Vegetation Shoulder Vegetation • Alternative Impervious Alt ti I i • Long Flow Paths Surfaces • Maximize Sheet flow • Tree / Shrub Depression • Reduce Impervious Surface • Maintain Drainage Patterns • Turf Depression • Surface Roughness • Green Roofs • Landscape Island Storage • Landscape Island Storage T Technology h l • Reforestation • Rooftop Detention • Rain Barrels / Cisterns / • Pollution Prevention /Retention Water Use • Roof Leader Disconnection • Catch Basins / Seepage Pits
rain gardens • Advantages – Captures low flow – Urban retrofit b fi – Aesthetics – Pollutant removal • Disadvantages – Small drainage areas – Maintenance Maintenance
rain gardens
rain gardens
Rain gardens
bioswale/vegetated swale • Advantages – Landscape area – Pollutant removal ll l – Reduces need for stormwater piping – Low maintenance • Disadvantages – Mosquitos Mosquitos – Low/Medium pollutant removal
bioswale/vegetated swale
bioswale/vegetated swale
bioswale/vegetated swale
bioswale/vegetated swale
porous/permeable pavement
porous/permeable pavement
porous/permeable pavement
porous/permeable pavement
porous asphalt/pervious concrete
porous asphalt/pervious concrete
permeable brick pavers
permeable brick pavers
permeable brick pavers
Success!
Success!
Success!
Success!
project example
questions?
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