• Bird's eye view of the Lower Wapato site after project completion shows the restored channel meandering between preserved tree stands
  • Lower angle view from the opposite end of the site showing established meadow plantings and new riparian habitat installations
  • The main channel after installation of burlap erosion control on the stream bank.
  • The site sits adjacent to major arterials and is bordered by collector streets within a broader industrial and residential context
  • Stream channel under construction with habitat debris set into the stream bank.
  • The main channel after installation of burlap erosion control on the stream bank.
  • The stream channel flows under a newly installed culvert which allows for sloped streambanks to enhance mobility and habitat for riparian wildlife

Lower Wapato Creek Habitat Project

The Lower Wapato Creek Habitat Project restored approximately 20 acres of tidally influenced estuary and fish-bearing stream habitat for the Port of Tacoma through major hydrologic and ecological restoration, including stream realignment, wetland creation, and barrier removal to improve fish passage and habitat quality.

Baumwelt served as landscape designer, project manager, and construction observation lead for the Lower Wapato Creek Habitat Project, a major ecological restoration effort led by the Port of Tacoma. The project re-established approximately 20 acres of tidally influenced estuary and restored fish-bearing stream habitat within an area that had previously been highly altered by historic industrial and drainage infrastructure.

A key component of the project involved replacing existing fish-barrier culverts with a new fish-passable full-span bridge, restoring hydrologic connectivity and improving access for migrating fish species. In addition, Wapato Creek was relocated from a straightened drainage ditch into a longer, meandering stream channel designed to support natural processes and create a more resilient aquatic system. The new channel and surrounding wetlands were carefully shaped to reintroduce tidal influence and support a diverse mosaic of marine wetland habitats.

The restoration design incorporated multiple wetland planting zones to support a wide range of ecological functions and improve both the quantity and quality of habitat for fish and wildlife. Native vegetation was strategically installed to provide food sources, cover, and long-term habitat structure within the restored estuarine environment.

Baumwelt led coordination of the interdisciplinary design team throughout both design and construction phases. The firm managed collaboration among wetland scientists, structural engineers, marine shoreline engineers, and electrical engineers while overseeing the overall project schedule and facilitating design and construction meetings. Baumwelt also developed a design analysis methodology to ensure that the proposed planting plan would meet the Port’s long-term habitat performance targets.

Video courtesy of Port of Tacoma. Learn more on their Vimeo account.

Through careful design coordination and consistent construction oversight, the project successfully transformed a previously constrained drainage system into a functioning estuarine habitat corridor. The restored wetlands and stream channel now provide improved fish passage, expanded habitat for wildlife, and increased ecological resilience within the Wapato Creek watershed, supporting the Port of Tacoma’s long-term environmental stewardship goals.