Sandusky Bay Restoration Strategic Plan Plan Presentation Sandusky - - PowerPoint PPT Presentation

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Sandusky Bay Restoration Strategic Plan Plan Presentation Sandusky - - PowerPoint PPT Presentation

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1 Sandusky Bay Restoration Strategic Plan Plan Presentation Sandusky City Commission City of Sandusky, Ohio July 8, 2019 Overview & Purpose of Sandusky Bay Restoration Initiative Bay Problems Needing to be Fixed Restoration

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Sandusky Bay Restoration Strategic Plan

Plan Presentation – Sandusky City Commission City of Sandusky, Ohio July 8, 2019

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 Overview & Purpose of Sandusky Bay Restoration Initiative  Bay Problems Needing to be Fixed  Restoration Strategies  Recommended Tier 1 Priority Projects  SB Plan Benefits

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Understanding of Sandusky Bay

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Sandusky Bay

Turbidity/ Hazardous Algae Blooms Hardened Shoreline High Water Levels Invasive Plants Herbivory Sediment/ Nutrient Loadings` Land Use Changes/ Activities Water Activities Hydrologic Modification

Sa Sandusky Bay Th Threats

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Planktothrix Slide

Sa Sandusky Bay Th Threats – Pla lanktothrix ix

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SB Strategic Restoration Initiative

Source: ODNR – Coastal Management Program

SBI

OEPA/USEPA – Nutrient Reduction & 9- Element Plan City of Sandusky – Beneficial re-use of sediments SB Monitoring & Integrated Assessment – BGSU, Kent State, UT Landscape Conservation – 2 Projects Nature-based Shoreline and Coastal Wetlands. The Nature Conservancy – Muddy Creek Bay Assessment ODNR/City of Sandusky - SB Strategic Restoration Plan

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EFDC Model – Animation

  • f Dec 2015

Event for TP

Sou

  • urce: Tetra Tech 2019

Total Phosphorus Modeling

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Simulated Flux of Total Phosphorus in 2015

460 MT 472 MT 270 MT 225 MT Flows and loads moving from river towards lake and from lake towards river, vary

Annual Net Phosphorus Loadings - 2015

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Simulated Flux of Total Phosphorus in 2017

709 MT 660 MT 39 MT 440 MT Flows and loads moving both from river towards lake and from lake towards river, vary daily

Annual Net Loadings - 2017

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Annual Nutrient Load Sources

Source: Tetra Tech 2019 Total Phosphorus Total Nitrogen

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Exis xisting Wetland Resources

Photo Credits: USACE 2012

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SBI Restoration Strategies

  • In-water island features
  • Located to reduce fetch, seiche effects, system energy
  • Extensive alteration of bathymetry
  • High cost to construct
  • Requires additional detailed evaluation to assess feasibility

Large - Scale Physical Transformation Strategy

  • Focused on Bay diked and undiked wetlands infrastructure
  • Modify to enhance water exchange, water quality/habitat

benefits

  • Opportunity to address nutrients in runoff (treatment)
  • Requires finger printing opportunities (unique hydrology, etc.)

Existing Wetland Infrastructure Modification/Enhancement Strategy

  • Involves wetland creation, nature-based, and other passive

solutions.

  • Adjacent to existing shoreline
  • Access from land primarily (water side likely)
  • Moderate to high cost.

Nearshore Functional Improvement Strategy

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Possible Restoration Opportunities

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1. Muddy Creek Bay 2. Western Bay Islands 3. Cedar Point Causeway 4. Area 3A & 3B 5. Standing Rush 6. Willow Point

  • 7. & 8 Chippewa Creek (East & West)
  • 9. Racoon Creek

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Tier 1 Recommended Projects

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Tier 1 Project Benefits

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SBI Tier 1 Recommended Projects

Willow Creek Pickerel Creek - West Racoon Creek Muddy Creek Standing Rush Pickerel Creek - East Western Islands

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Western Bay Islands

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Restoration Approaches

Passive Active Living Berm Living Shoreline

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SBI Benefits

  • Much better understanding of Sandusky Bay problems

and solutions.

  • Nine (9) Tier 1 projects recommended to reduce

sediment resuspension, improve water clarity and quality, and improve habitat for fish and wildlife.

  • Public and private restoration funds are required in the

Bay and Sandusky River Watershed.

  • Project implementation will take place over 10 years or

more.

  • Concepts will likely change in response to additional

engineering studies required to advance projects to construction.

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Contact Information: Tom Denbow, tdenbow@biohabitats.com 216.906.5566

Aaron Klein, P.E. Public Works Director, City of Sandusky

Tom Denbow, Project Manager & Senior Scientist, Biohabitats, Inc. Joe Berg, CERF, Senior Ecologist, Biohabitats, Inc. Jessica Norris, Scientific Technical Writer, Biohabitats, Inc. Justin Parks, Conceptual Plans, Biohabitats, Inc. Usama Saied, Senior Coastal Engineer, W.F. Baird & Associates Reiner Tromp, Hydraulic Engineer, W.F. Baird & Associates Rachel Hague, GIS, W.F. Baird & Associates

Funding Provided by: Ohio Department of Natural Resources, Office of Coastal Management, Sandusky, Ohio

  • Dr. Scudder Mackey, Chief

Contact Information & Project Funder