Maumee Bay State Park – Surface Water Improvement


Ohio Department of Natural Resources, Division of Engineering


Lucas County, OH

CEC Services

  • Erosion & Sedimentation Control/NPDES Permitting
  • Stormwater Management/BMP Design
  • Clean Water Act, Section 401/404 Permitting
  • Wetlands & Waters Delineations
  • Flood Routing and FEMA Map Revisions
  • Watershed Planning and Restoration
  • As-built Surveys
  • Bathymetric/Hydrographic Surveys

Owner Objective

The Ohio Department of Natural Resources (ODNR) Division of Parks and Watercraft manages 74 State Parks and numerous other holdings for public recreation experiences and natural resource conservation. Maumee Bay State Park (MBSP) is located in Lucas County, Ohio, on the southern shore of Lake Erie and offers visitors a unique coastal experience. MBSP features coastal wetlands and prairies alongside golf, boating, and lodging facilities. Historically, non-point source pollution discharges have significantly impaired the water quality and overall ecosystem health of Lake Erie.

MBSP secured a Surface Water Improvement Fund subgrant from the Ohio EPA to divert runoff water from a central drainage ditch into existing wetlands for water storage and to filter contaminants before the water enters Lake Erie.

CEC Approach

CEC designed a custom water control structure, storm conduit, and control valves to direct more surface runoff into existing wetlands within the park. The wetlands naturally filter contaminants and excess nutrients from the runoff and provide storage after peak storm events. A two-dimensional hydraulic model completed in HECRAS 2D was used to simulate the additional surface water runoff directed into the wetland in various storm events.

These improvements will reduce direct surface water discharge into Lake Erie and improve water quality. The project is currently in the design and permitting stage and is expected to be completed in 2019.