Green Solutions: Not Just a Demo Anymore

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Green Solutions Not Just a Demo Anymore

• Green Grey Infrastructure Together
• 2008 NACWA Wet Weather Partnership Conference
• April 17-18, 2008
• Chicago
• Mary Wahl
• Portland, Oregon

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Integrate Stormwater

• It is not whether we develop, but how we
  develop.

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• Rethinking - Urban
• Solutions

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An Integrated Approach
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Sewer Back-up Solution
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NE Siskiyou Green Street Stormwater Curb
Extensions
10,000 Square Feet of Drainage
Drawn by Kevin Perry
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NE Siskiyou Green Street Stormwater Curb
Extensions
Drawn by Kevin Perry
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NE Siskiyou Green Street Stormwater Curb
Extension Plan
Stormwater Curb Flow Diagram
N
N
Drawn by Kevin Perry
June 20, 2005
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NE Siskiyou Green Street Stormwater Curb
Extensions
Drawn by Kevin Perry
April 27, 2005
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Glencoe Elementary School Raingarden
Drawn by Kevin Perry
April 27, 2005
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Glencoe Elementary School Raingarden
Drawn by Kevin Perry
April 27, 2005
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Glencoe School
Sewer Back-up Relief CSO reduction neighborhood
beautification
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Glencoe Elementary School Raingarden
Drawn by Kevin Perry
April 27, 2005
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New Seasons
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Butler Promotions
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NW 10th at Hoyt
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Flow Tests SE 12th and Montgomery

• Performed three flow tests in summer of 06.
• Flow volume reductions of 50 to 72

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Flow Tests
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NE Siskiyou Green Street 25-YR FLOW TEST /
SATURATED CONDITIONS (April 21, 2005)
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The Clean Water Act dominates capital resources
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CSO Needs over TimeOn-going Stormwater Projects
to Year 2040
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Ramsey Site - (Backwater Habitat looking south)
March 15, 2006
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Monitoring Data Fish Photos
Steelhead Trout 700 mm (24) July 7, 2006
Monitoring with DU
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Pipe Siphon by Open-cut
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Lents Interceptor Repair and Restoration
Restored Condition
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Traditional Approach
Key Regulatory Drivers
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Integrated Approach
Key Regulatory Drivers
Clean Water Act (MS4/NPDES/TMDL)
ESA
CERCLA (Portland Harbor)
Safe Drinking Water Act (UIC/Groundwater)
Goal 5
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Mt. Tabor Flooding Relief Project
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Natural Hydrologic Cycle
35 Evaporation Transpiration
1 Surface Runoff
64 Infiltration
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Existing Hydrologic Cycle
11 Evaporation Transpiration
64 Surface Runoff
25 Infiltration
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Restored Hydrologic Cycle
16 Evaporation Transpiration
20 Surface Runoff
64 Infiltration
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What we do on the land gets written on the water.
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East Powell Butte Floodplain Restoration
(Brownwood Phase - 2007)SE 159th Foster
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Potential Development
East Buttes Development Associated Impacts
SE 145th and Pebble Beach Dr.
Drainageway onto Foster Rd. (158th and Barbara
Welch)
Construction Runoff _at_ SE 162nd
Clatsop Butte Development
Notable Map Features 1. Significant increase in
development pressure on Clatsop Butte from
2000 to 2006 2. Increase in impervious surfaces
on buttes causing an increase in
stormwater issues 3. Potential development
leading to - Increase in habitat
fragmentation - Development on steep slopes
and landslide hazard areas -
Compromising function and success of downstream
existing restoration projects
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2.
3.
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How high can this little guy jump?
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New Season SE Division
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SW 12th Avenue Green Street Street Stormwater
Planters
Drawn by Kevin Perry
April 27, 2005
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NE Siskiyou Green Street Stormwater Curb
Extensions
Drawn by Kevin Perry
April 27, 2005
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What We Do On The Land. Gets Written on the Water