engineering with nature: sustainable, multi-benefit projects
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Engineering With Nature: Sustainable, Multi-benefit Projects. Thomas J Fredette, PhD and Michelle Bourne Environmental Laboratory Engineer Research and Development Center. Outline. Engineering With Nature (EWN) background Examples Project database Current demonstration projects - PowerPoint PPT PresentationTRANSCRIPT
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US Army Corps of Engineers
BUILDING STRONG®
Engineering With Nature: Sustainable, Multi-benefit Projects
Thomas J Fredette, PhDand Michelle BourneEnvironmental LaboratoryEngineer Research and Development Center
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Outline
• Engineering With Nature (EWN) background• Examples• Project database• Current demonstration projects• Path forward• Discussion
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Engineering With Nature is…
…the intentional alignment of natural and engineering processes to efficiently and sustainably deliver economic, environmental and social benefits associated with water resources infrastructure through collaborative processes.
Key Ingredients: Science and engineering that produces
operational efficiencies Using natural process to maximum benefit Broaden and extend the benefits provided
by projects Science-based collaborative processes to
organize and focus interests, stakeholders, and partners
www.engineeringwithnature.org
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Working with Nature
Building with Nature
Engineering With Nature
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The USACE Navigation Mission
To provide safe, reliable, efficient, effective and environmentally sustainable waterborne transportation systems for movement of commerce, national security needs, and recreation
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The USACE Environmental
Operating Principles
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Current Status
Engineering With Nature initiative was started by USACE Navigation program in 2010. Over that period we have:
Engaged across USACE Districts (23), Divisions, HQ; other agencies, NGOs, academia, private sector, international collaborators
•Workshops (>20), dialogue sessions, project development teams, etcBroadening EWN to other Business Lines (FRM, RSM, Hydro). ►Implementing strategic plan ►Focused research projects on EWN ►Field demonstration projects ►Communication plan ►Awards •2013 Chief of Engineers Environmental Award in Natural Resources
Conservation •2014 USACE National Award-Green Innovation
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Opportunities/Existing Examples
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River Chevrons
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Notched Chevron River Flow and Sediment Bed
Behavior
Center section of chevron at lower
elevation (e.g., notched)
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Reef Habitat Breakwaters,
Pensacola, FLCobble Mounds
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South Bay MarinaSouth Bay Marina, Green Bay, WI
• Spur jetties to create marsh and protected shallows. • Fish spawning stones incorporated into design.
Spur Jetties
http://www.seagrant.wisc.edu/Home/Topics/HabitatsandEcosystems/Details.aspx?PostID=552
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Seattle, WA Seawall Studyhttps://sites.google.com/a/uw.edu/seattle-seawall-project/home
3 panel designs, each with 2 surface treatments; plus Reference and Control
Clay St.
Vine St.
Aquarium
3 Sites
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EWN ProMap (project mapper)interactive on-line catalog of case studies that apply the EWN concept.
http://155.82.160.6/applications/opj/V013/public/viewer.swf or from http://el.erdc.usace.army.mil/ewn/index.html
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Current Demonstration Projects
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Deteriorating Breakwater
Short Repair Section w/ Block
8’ x 4’ x 4’ Repair Toe Block
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Are there ways to improve biological value of blocks?
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Control Grooved
Dimpled Grooved Shelf
Cleveland & Ashtabula, OH
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Texture Scale
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Ashtabula, OH Tern Nesting Blocks
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Milwaukee, WI Fish Spawning Shelf
6-10 ton Stone(60-72” d)
8-18” d Stone
4-8” d Stone
500’ demonstration sectionSpring 2014 construction
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Post Construction Monitoring
Side-scan Sonar
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A
B
C
Atchafalaya RiverDredged Material Feeder
Mounds
90-Acre Island Formed from & Shaped by Dredged
Material
A
B
C
Horseshoe Bend IslandAtchafalaya River, LA
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Engineering With NaturePath Forward
• Integrate more fully into organizational culture
• Communicate goals with partners, academia, & public
• Seek opportunities to conduct demonstrations or full scale projects with partners
• Assess and report on project findings