Washington State’s Integrated Climate Change Response...
Transcript of Washington State’s Integrated Climate Change Response...
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Seth StarkWSDOT Sustainable Transportation Program Lead
Washington State’s Integrated Climate Change Response Strategy
T&DI / ASCE Green Streets and Highways ConferenceFHWA / AASHTO Climate Change Adaptation Workshop
Denver, CONovember 17, 2010
-44%
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Seth StarkWSDOT
Sustainable Transportation Program Lead
Paula HammondSecretary of Transportation
Dave Dye Deputy Secretary
Steve ReinmuthChief of staff
T&DI / ASCE Green Streets and Highways ConferenceFHWA / AASHTO Climate Change Adaptation Workshop
Denver, CONovember 17, 2010
Washington State’s Integrated Climate Change Response Strategy
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WSDOT – What are we doing?
• What is Sustainable Transportation at WSDOT?• What is an Integrated Climate Change Response
Strategy?
• How did we get here?
• What are we experiencing?
• What is our internal effort?
• What is our external effort?
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Sustainable Transportation
At WSDOT, a sustainable transportation system:– Preserves the environment– Durable and takes into account how we build
and the materials we use– Managed and operated using policies and
strategies that meet society’s present needsWithout compromising the ability of future generations to meet their own needs
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2009 State Legislation
• Directs five state agencies (including WSDOT) to work together to develop an “integrated climate change response strategy to better enable state and local agencies, public and private businesses, nongovernmental organizations, and individuals to prepare for, address, and adapt to the impacts of climate change.” RCW 43.21M.010
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Foundation for Strategy
UW/Climate Impacts Group (CIG) Feb. 2009 Assessment
“2008 PAWG reports”
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Sea Level
• Global SLR: 7-23” by 2100
• Medium estimates of SLR for 2100:
+2” for the NW Olympic Peninsula +11” for the central/southern coast+13” for Puget Sound
• Higher estimates (up to 4 feet in Puget Sound) cannot be ruled out at this time.
Sea level rise (SLR) will increase the risk of flooding, erosion, and habitat loss along much of Washington’s 2,500 miles of coastline.
3”6”
30”
50”
2050 2100
40”
20”
10”
Projected SLR in Washington’s waters relative to 1980-1999, in inches. Shading roughly indicates likelihood. The 6” and 13” marks are the SLR projections for the Puget Sound region and effectively also for the central and southern WA coast (2050: +5”, 2100: +11”). 5
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Temperature and Precipitation Changes in Washington StateRelative to 20th Century
High confidence in projected temperature changes, less in precipitation changes
Source: Climate Impacts Group (CIG), University of Washington
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Key Impacts in Washington• Sea level rise • Transition from snow-dominant watersheds to rain-dominant watersheds• Wildfire, river dynamics, landslides, and more
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Sea level rise effects • Inundation• Wave height increases• Erosion
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• Inundation maps draw attention to large, low-lying areas where extensive flooding is possible
• These maps downplay high risk areas where flooding is not the primary hazard (downtown waterfront, bluff landslides, contaminated shoreline sites)
Source: Hugh Shipman, Dept. of Ecology9
Inundation
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Wave height increase
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Whidbey Island (4 February 2006)
Anacortes (4 February 2006)
Erosion
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Climate Impacts Group 2009, Ch. 3a Map: Rob Norheim 11
Key Impact:Transition from Snow Dominant Watershed to a Rain Dominant Watershed
-29% -44% -65%
-27% -37% -53%
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Key Impact: Loss of April 1 Snow Cover
White Chuck Glacier Ice Loss Glacier Peak, WA 1973
Photo Leor Pantilat
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Key Impact: Loss of April 1 Snow Cover
White Chuck Glacier Ice Loss Glacier Peak, WA 2006
Photo Leor Pantilat
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Changes in Flood Risks• Floods in western WA will likely increase in
magnitude due to the combined effects of warming and increasingly intense winter storms.
• In other parts of the State, changes in flooding are mixed, and in eastern WA projected reductions in spring flood risk are common due to loss of spring snow cover.
Mixed Rain/SnowRain Dominant
Mantua et al. 2009, Elsner et al. 2009
Yakima River (Eastern WA)Chehalis River (Western WA)
Jim Park, WSDOT
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WSDOT AdaptationAsset Management and Climate Change
• Scenario planning• Sea level rise mapping• Bridge Scour monitoring• Risk Assessment
15West Seattle, Alki Beach
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Changes in River Dynamics• Channel migration and avulsion
Jim Park, WSDOT
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Hoh River flooding
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Kautz Creek
Only year-round road into and out of Park.
In response to flood a new creek also flowed down a service road, carving a channel through the park’s primary helipad.
Route 706
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6 November 2006
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Mount Rainier6 November 2006
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Emergency Operations
Center
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Riverbed before flood
Recent channel evolution
Riverbed after flood
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Tahoma Creek
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Scour and damage to structuresJust off US 12 at Davis Creek
Jim Park, WSDOT
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WSDOT’s Preparation and Adaptation Response
• Internal Effort– Risk assessment and response strategy for state
owned infrastructure• Leverage our existing programs
– Maintenance, Materials, Emergency Response, Planning
• External Effort – Multi-agency team developing climate change
response and adaptation strategy and design
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Topic Advisory Groups:TAG1 - Built Environment/Infrastructure and Communities
TAG2 - Human Health and Security
TAG3 - Ecosystems, Species, Habitats
TAG4 - Natural Resources (working lands and waters)
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Washington State’sIntegrated Climate Change Response Strategy
Statewide Steering Committee:Dept. of TransportationDept. of EcologyDept. of AgricultureDept .of Fish and WildlifeDept. of Natural Resources, andDept. of Commerce
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Increasing infrastructure resiliency• Limit armoring
• Restore shorelines
• Targeted removal of dikes
• Improve processes for siting new construction
• Set back development
• Protect key geomorphologic processes (sediment supply)
• Identify critical natural and built environments
• “When engineering is inevitable, be imaginative”
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• Expanding application of existing practices
• Integrating new technologies
• Design policy changes (flexibility in design)
• Project-level decisions (look at site, avoid, mitigate impacts)
• Material selection – quality and lifespan
• Environmental assets are keyplan enhancements so they last
Expanding Existing Practices
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WSDOT’sIntegrated Climate Change Response Strategy
• Sustainable Transportation at WSDOT
• Integrated Climate Change Response Strategy
• Our internal effort
• Our external effort
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Seth StarkWSDOT Sustainable Transportation Program Lead
[email protected](360) 705-7913
WSDOT Sustainable Transportation Link: http://www.wsdot.wa.gov/SustainableTransportation/
Washington State’sIntegrated Climate Change Response Strategy
Statewide Steering CommitteeLink: http://www.ecy.wa.gov/climatechange/adaptation.htm
Topic Advisory Group #1 Built Environment, Infrastructure and Communities
Link: http://www.ecy.wa.gov/climatechange/tag_infrastructure.htm
Questions or Comments:
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