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Sandusky Bay Restoration Strategic PlanPlan 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
2Understanding of Sandusky Bay
3
Sandusky Bay
Turbidity/ Hazardous
Algae Blooms
HardenedShoreline
High Water Levels
Invasive Plants
HerbivorySediment/ Nutrient
Loadings`
Land Use Changes/ Activities
Water Activities
Hydrologic Modification
Sandusky Bay Threats
4
Planktothrix Slide
Sandusky Bay Threats – Planktothrix
5SB 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 of Dec 2015 Event for TPSource: 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
9Annual Nutrient Load Sources
Source: Tetra Tech 2019
Total Phosphorus Total Nitrogen
10Existing Wetland Resources
Photo Credits: USACE 2012
11SBI 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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13Possible Restoration Opportunities
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4
3
1. Muddy Creek Bay2. Western Bay Islands3. Cedar Point Causeway
4. Area 3A & 3B5. Standing Rush6. Willow Point
7. & 8 Chippewa Creek (East & West)9. Racoon Creek
52
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7 & 8
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1
Tier 1 Recommended Projects
15Tier 1 Project Benefits
16
SBI Tier 1 Recommended Projects
Willow Creek
Pickerel Creek -West
Racoon Creek
Muddy Creek Standing Rush
Pickerel Creek - East
Western Islands
17Western Bay Islands
18Restoration Approaches
Passive
Active
Living Berm
Living Shoreline
19
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.
Contact Information:
Tom Denbow, [email protected]
216.906.5566Aaron 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, OhioDr. Scudder Mackey, Chief
Contact Information & Project Funder
