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Toussaint Marsh State Wildlife Area

Toussaint Marsh State Wildlife Area: Hydrologic connections between 125 acres of coastal zone wetlands and the Toussaint River were restored for the benefit of resident and migratory fish and wildlife.



The project is located in Northwest Ohio, near the town of Oak Harbor, roughly five miles from Lake Erie. The site is adjacent to the Toussaint River and includes 125 acres of emergent and lowland shrub wetlands within western Lake Erie’s coastal zone at the Toussaint Wildlife Area.



Habitat in this area of Ohio was historically dominated by emergent and forested wetlands. Human activities dramatically altered this landscape, resulting in the loss of more than 90% of the historic wetlands. The restoration and redesign of an existing impounded wetland is needed to help:

  • Improve the quality of habitat for fish and wildlife in the coastal region of Lake Erie and
  • Restore hydrological connections between the wetlands and the Toussaint River for fish passage.



  • Enhance water level management capacity while reducing costs associated with infrastructure maintenance and operation;
  • Restore the connection between the wetlands and the Toussaint River to address the loss of fish and wildlife habitat Beneficial Use Impairment (BUI) in the Maumee Area of Concern; and
  • Improve the connectivity of wetland habitat for fish and wildlife and improve water management capability for the control of invasive plant species.



  • To realize a better water level management system, existing water control and pump structures were removed and replaced with improved infrastructure.
  • To increase habitat connectivity for fish and wildlife and decrease management costs, more than one-mile of the internal levees were removed to establish one large wetland where four smaller wetlands had previously existed. 





This project was a collaborative effort among the Ohio Division of Wildlife, The Nature Conservancy and Ducks Unlimited, with financial support provided by the National Oceanic and Atmospheric Administration, the Great Lakes Fish and Wildlife Restoration Act and the National Fish and Wildlife Foundation through the Great Lakes Restoration Initiative.

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The Maumee AOC Committee works toward fishable and swimmable waters in the Maumee Area of Concern and delisting the beneficial use impairments. The Committee is working towards all major restoration projects being completed by 2025, through collaboration of partners and volunteer opportunities by its facilitating organization, Partners for Clean Streams. The committee is made up of representatives from various organizations, citizens, businesses and non-government agencies to build long term solutions to the area’s water quality issues.