artful rainwater design › sites › default › files › ard_pa_3.pdfboston logan rainfall record...
TRANSCRIPT
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Eliza Pennypacker, Professor of Landscape Architecture, Penn State
Stuart Echols, Associate Professor of Landscape Architecture, Penn State
Artful Rainwater DesignCreative Ways to Manage Stormwater
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Photo
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Quantity
HISTORICAL STORMWATER MANAGEMENT
Flood Control
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Quality
SHIFT
Quantity
Flood + Pollution Control
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Sizing
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FLOOD MANAGEMENT
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Big
Fast
Centralized
FLOOD MANAGEMENT
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RAIN MANAGEMENT
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Small
Slow
Dispersed
RAIN MANAGEMENT
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Boston Logan Rainfall Record 1920 - 1999
Cumulative Rainfall Depth Percentage
0
10
20
30
40
50
60
70
80
90
100
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8
Rainfall Depth (in)
Perc
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ive D
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Capture 2” (1.66’) Release 1” Hold 1” (.083’)
RAIN MANAGEMENT
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RAIN MANAGEMENT
10
65
Bioretention Area Needed
Capture 2” (1.66’) Release 1” Hold 1” (.083’)
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RAIN MANAGEMENT
10
65
Bioretention Area Needed
10
65
Bioretention Area Needed
Capture 2” (1.66’) Release 1” Hold 1” (.083’)
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RAIN MANAGEMENT
FIRST FLUSHVOLUME
VARIES
ToC
post
Qppre
Qp
ToC x 1.67
Capture 2” (1.66’) Release 1” Hold 1” (.083’)
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RAIN MANAGEMENT
Design paved surfaces as many small drainage areas
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RAIN MANAGEMENT
Flow splitters accept first flush and divert large volumes
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RAIN MANAGEMENT
Flow splitters accept first flush and divert large volumes
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RAIN MANAGEMENT
A set of narrow slits controls water access into the system
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RAIN MANAGEMENT
One type of in-system overflow splitter simply backs up water
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RAIN MANAGEMENT
Overflow splitters can be curb cuts located downhill
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RAIN MANAGEMENT
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RAIN MANAGEMENT
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RAIN MANAGEMENT
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RAIN MANAGEMENT
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“GREEN INFRASTRUCTURE”
Design for different stormwater goals and objectives
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“GREEN INFRASTRUCTURE”
Design with different green infrastructure system types
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“GREEN INFRASTRUCTURE”
Low Impact Development Approaches (LIDA) Handbook, 2009
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Amenity
MOVE TO A “NEW NORMAL”
Quantity
Quality
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ARTFUL RAINWATER DESIGN
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ARTFUL RAINWATER DESIGN
SUSTAINABLE STORMWATER MANAGEMENT
THAT CELEBRATES RAIN
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Photo
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ARTFUL RAINWATER DESIGN
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ARTFUL RAINWATER DESIGN
• Responds to regulatory demands
• Manages runoff in responsible ways
• Uses rainwater as a resource
• Transforms people’s perception of rainwater
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Utility Goals:
- Reduce pollutant loads
- Reduce downstream damage
- Safely move, control, contain
- Capture rain for reuse
- Restore or create habitat
Amenity Goals:
- Education
- Recreation
- Safety
- Public Relations
- Aesthetic Richness
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Sustainable Stormwater Management Techniques:- Rainwater Trail
- Flow Splitter
- Rainwater harvesting container
- Flow-through filter planter
- Dry detention basin
- Wet detention basin & constructed wetland
- Infiltration basin or trench
- Rain garden- Bioswale
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SOUTHWEST RECREATION CENTER, UFl
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SOUTHWEST RECREATION CENTER, UFl
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SOUTHWEST RECREATION CENTER, UFl
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SOUTHWEST RECREATION CENTER, UFl
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Slow it down, spread it out, soak it in
HIGH POINT, Seattle
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HIGH POINT, Seattle
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HIGH POINT, Seattle
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HIGH POINT, Seattle
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HIGH POINT, Seattle
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SHOEMAKER GREEN, University of Pennsylvania
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SHOEMAKER GREEN, University of Pennsylvania
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SHOEMAKER GREEN, University of Pennsylvania
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SHOEMAKER GREEN, University of Pennsylvania
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SHOEMAKER GREEN, University of Pennsylvania
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RIDGE & VALLEY, University Park Pennsylvania
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RIDGE & VALLEY, University Park Pennsylvania
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RIDGE & VALLEY, University Park Pennsylvania
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http://artfulrainwaterdesign.psu.edu
case studies, publications, presentations, etc.
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Eliza Pennypacker, [email protected]
Stuart Echols, [email protected]
Artful Rainwater DesignCreative Ways to Manage Stormwater
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Yes, but . . . #1:
“. . . that’s Portland. We can’t do that here!”
Yes, but . . . #2:
“. . . how do we know it will work??”
Yes, but . . . #3:
“. . . it’s too expensive!”
Yes, but . . . #4:
“. . . it freezes here.”
Yes, but . . . #5:
“ . . . maintenance will be an issue.”
TOP TEN “YES, BUTs . . .”
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“YES, BUT . . .” #1
“That’s Portland . . . We can’t do that here!”
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Sewage discharge into the Willamette River
“YES, BUT . . .” #1
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“Across the nation, more than 700 other cities have combined sewer overflow problems,
largely communities that developed a century or more ago, like much of Portland.”
Steve Law, Portland Tribune, November 9, 2011
“YES, BUT . . .” #1
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“YES, BUT . . .” #2
“. . . how do we know it will work??”
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EPA
ASLA
Natural Resources
Defense Council
“YES, BUT . . .” #3
“. . . it’s too expensive!”
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“YES, BUT . . .” #4
“. . . it freezes here.”
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“YES, BUT . . .” #4
“. . . it freezes here.”
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“YES, BUT . . .” #4
“. . . it freezes here.”
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“YES, BUT . . .” #5
“ . . . maintenance will be an issue.”
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“YES, BUT . . .” #5
“ . . . maintenance will be an issue.”
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make it clear & neat!
engage to invest & to ensure neatness!
make it robust & neat!
“YES, BUT . . .” #5
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Eliza Pennypacker, Professor of Landscape Architecture, Penn State
Stuart Echols, Associate Professor of Landscape Architecture, Penn Stae
Artful Rainwater DesignCreative Ways to Manage Stormwater