green bulkheads in the cuyahoga river christopher …...100 miles long headwaters in geauga county...
TRANSCRIPT
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Green Bulkheads in the Cuyahoga River
Christopher Streb, PE
And Elaine Price – Cuyahoga
Planning Commission
July 29, 2014
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“River that oozes rather than flows” TIME
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100 miles long Headwaters in Geauga County Area of Concern: • 1985 IJC, others identify 43 Great Lakes Basin AOC’s • 1988 Cuyahoga RAP establish AOC as
lower 45 mi. Ohio Edison Dam to Lake approx. 10 mi. shoreline (Edgewater to Wildwood)
Beneficial Use Impairment …including:
Restrictions on fish and wildlife consumption Degradation of fish and wildlife populations Fish tumors or other deformities Loss of fish and wildlife habitat
Project Area Ship Channel Slightly Above Head of Navigation
Cuyahoga River
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GREEN BULKHEAD PROJECT – Second Iteration High Performance Shoreline Project
• 2007 CPC partnership with U.S. Army Corp of Engineers • 2008 Preliminary prototype Cuyahoga Hanging Underwater Basket (CHUB) •Second Iteration • 2009
Monitoring plan Market-available habitat types
• 2010
Developed rigging system Samsel Supply Installed in ship channel Samsel Supply; Trident Marine
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Purpose & Goals
Purpose: Discover/ Design Habitat Interventions … Test in Cuyahoga River … Transferable to ship channels around the world
Goals: 1. Re-establish a Viable Fish Population/Cycles 2. Maintain Active Shipping Industry
fish
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Fish Cycle
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Larval Fish Needs – Design Criteria
Food: phyto-; zooplankton Shelter: camouflage, shadows Rivers Edge Surface to 24” Depth Short Swim from Spawning March – June
Matrix (Roots) Matrix (Vegetation) Edge Placement Buoyant Placement near Head of Nav. Last Year’s Vegetation
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Floating Islands
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Beemats
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CHUBS
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State of Artificial Habitats
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What do we want our design to do?
• Reduce attrition and improve survival of larval and juvenile fish in navigation channel
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Photo courtesy of Jim White
Restoration?
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Phase 3 Approach
Biomimicry
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the conscious emulation of nature’s genius
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“I have seen a world that no man should see” John Malkovich
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Scoping
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Green Bulkhead Phase III Design A Collaborative Process
• Project Owner: • U.S. Army Corps of Engineers,
Buffalo District • Cuyahoga County Planning Commission
• Consulting Team: • Biohabitats • Aequinox • Barry Patterson & Associates • Ecocean • Jeffrey Miner, Ph.D.,
Bowling Green State University • Ocean & Coastal Consultants, Inc.
Advisory Team: Cleveland-Cuyahoga County
Port Authority Cleveland Metroparks Cleveland State University Cuyahoga River Community Planning /
Remedial Action Plan Independent Sustainability Consultant Northeast Ohio Regional Sewer District Ohio Department of Natural Resources
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SCOPING Define Context What do we want our design to do? Reduce attrition and improve survival of larval and juvenile fish in navigation channel
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Photo courtesy of Jim White
SCOPING Define Context
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Photo courtesy of Jim White
SCOPING Define Context • Historic River System • Existing and Future River System • Life Cycle of Lake Erie Fish • Water Quality • Shipping and Recreational Boater Conflict
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• Larval and juvenile fish need support • Bulkhead replacement • Industrial outfalls near head of navigation • Commercial use of the river significant • Bi-annual dredging • Debris (carbon) actively removed
SCOPING Define Context
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Photo courtesy of Jim White
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1. Dissipate energy 2. Transport larval fish 3. Nourish 4. Provide habitat 5. Increase DO 6. Cool water 7. Clean water 8. Quiet Noise
3. Nourish 4. Provide habitat 5. Increase DO
Functions
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Discovering
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Forms/Structures Processes Materials Relationships Patterns Systems Principles
What Natural Models do we use?
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DISCOVERING Discover Natural Models Function: How does nature create shelter?
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Function: How does nature trap or transform biomass?
DISCOVERING Discover Natural Models
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Function: How does nature oxygenate?
DISCOVERING Discover Natural Models
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Creating
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CREATING Brainstorm Bioinspired Ideas
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CREATING Emulating design principles
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Photo courtesy of Jim White
CREATING Leveraging cyclical processes • Capture carbon • Fish recruitment and siting habitats • Use wave energy from boats
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CREATING Design criteria • Modular • Heavy sediment loads • Ice flows • Limited maintenance • Durable
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CREATING Emulating form
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CREATING Green bulkhead casing
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CREATING Green bulkhead inserts
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Next Steps: • Procurement • Fabrication • Installation • Monitoring