City of Lodi Storm Water Workshop k h Thursday November 5 2009 - - PowerPoint PPT Presentation

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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


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City of Lodi

k h Storm Water Workshop Thursday November 5 2009 Thursday, November 5, 2009 LID Success “ ” “Green Streets”

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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

  • u

e – Maintain Flow Paths – Supplement Water Use Supplement Water Use

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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
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LID ~ creative techniques

  • Bioretention / Rain Gardens
  • Strategic Grading
  • Site Finger Printing
  • Parking Lot / Street Storage
  • Smaller Culverts, Pipes

& Inlets

  • Sidewalk Storage
  • Vegetative Swales, Buffers

& Strips g g

  • Resource Conservation
  • Flatter Wider Swales
  • Flatter Slopes
  • Amended soils
  • Alternative materials
  • Tree Box Filters

Alt ti I i

  • Infiltration Swales &

Trenches

  • Eliminate Curb and Gutter
  • Shoulder Vegetation
  • Long Flow Paths
  • Tree / Shrub Depression
  • Turf Depression
  • Landscape Island Storage
  • Alternative Impervious

Surfaces

  • Reduce Impervious Surface
  • Surface Roughness

T h l Shoulder Vegetation

  • Maximize Sheet flow
  • Maintain Drainage Patterns
  • Green Roofs
  • Landscape Island Storage
  • Rooftop Detention

/Retention

  • Roof Leader Disconnection

Technology

  • Rain Barrels / Cisterns /

Water Use

  • Catch Basins / Seepage Pits
  • Reforestation
  • Pollution Prevention
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rain gardens

  • Advantages

– Captures low flow b fi – Urban retrofit – Aesthetics – Pollutant removal

  • Disadvantages

– Small drainage areas Maintenance – Maintenance

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rain gardens

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rain gardens

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Rain gardens

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bioswale/vegetated swale

  • Advantages

– Landscape area ll l – Pollutant removal – Reduces need for stormwater piping – Low maintenance

  • Disadvantages

Mosquitos – Mosquitos – Low/Medium pollutant removal

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bioswale/vegetated swale

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bioswale/vegetated swale

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bioswale/vegetated swale

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bioswale/vegetated swale

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porous/permeable pavement

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porous/permeable pavement

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porous/permeable pavement

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porous/permeable pavement

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porous asphalt/pervious concrete

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porous asphalt/pervious concrete

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permeable brick pavers

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permeable brick pavers

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permeable brick pavers

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Success!

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Success!

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Success!

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Success!

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project example

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questions?