Miami River Wetland Restoration

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Oregon’s Tillamook Bay wetlands have suffered 85 percent loss through diking and filling, resulting in increased flooding, habitat loss, and diminished water quality at the mouth of the Miami River. Two private landowners partnered with the Tillamook Estuaries Partnership (TEP) to restore 52 acres of this wetland habitat, benefitting coho, Chinook, and chum salmon, and steelhead and cutthroat trout.

ESA prepared a feasibility study evaluating existing site conditions and restoration designs focused on reversing human site alterations to enhance habitat. The design scenarios and cost estimates were presented to a Technical Advisory Committee and landowners for final selection. Our team then prepared a wetland delineation, managed archeological site investigations, and coordinated with local utilities to guide preliminary (50 percent) designs and later the construction drawings, specifications, and cost estimates. We provided construction estimates and recommended project phasing to assist grant funding efforts.  We met with the Technical Advisory Committee and landowners throughout the process to ensure that both habitat enhancement goals and landowner needs were met.

ESA’s restoration design has increased the complexity of freshwater and tidal channels, restored the historical character of the site’s vegetation, and enhanced riparian vegetation to benefit aquatic species and local habitat along Tillamook Bay.

This project received the Oregon State Land Board 2010 Wetland Project Award.

Specialized Services

  • Design specifications and construction bid packages
  • Engineering design and construction documents
  • Habitat restoration and enhancement
  • Large woody debris and in stream structures
  • Modeling and analysis
  • Monitoring
  • Native plant revegetation
  • Permitting assistance
  • Post-construction monitoring
  • Real-time data collection systems
  • Tidal wetlands and marsh restoration
  • Wetland delineations
  • Wetland restoration