Alsea Estuary-Alsea River, COA 029

Alsea Estuary
Alsea Estuary Photo Credit: Doug Cottam, ODFW

The Alsea Estuary is large and shallow and provides overwintering habitat for migrating waterfowl and rearing habitat for coastal salmonids. The COA also has had extensive salt marsh habitat restoration and contains a lot of public lands.

COA ID: 029

Local Conservation Actions and Plans

  • Coastal Multispecies conservation plan
  • Important Bird Areas of Oregon
  • Yaquina and Alsea River Basins Estuarine Wetland Site Prioritization Project 1999

Potential Partners

Special Features


  • Eagle and Osprey nesting sites
  • Great Blue Heron rookeries
  • Harbor seal pupping islands
  • Waterfowl overwintering area in estuary

Protected Areas

  • Alsea Bay Historic Interpretive Center
  • Bayview Oxbow Preserve
  • Bunker Creek
  • Drift Creek Wilderness
  • Governor Patterson Memorial State Recreation Site
  • Siuslaw National Forest
  • Starr Creek Preserve
  • W.B. Nelson State Recreation Site


Strategy Habitats

Specialized Local Habitats

  • Aquatic vegetation beds
  • Bays
  • Intertidal mudflats
  • Off-channel habitat
  • Sand spit

Strategy Species