Elliott Bay Seawall Replacement

Parsons Transportation Group

Seattle, Washington

Elliot Bay Seawall

Hart Crowser is the Habitat Lead on the multidisciplinary engineering team to replace the 7,000-foot aging Elliott Bay seawall along the Seattle waterfront. We are responsible for managing the design of several habitat features associated with the project. Our work involves:

  • Designing marine aquatic habitat features.
  • Designing a 7,000-foot nearshore juvenile salmon habitat corridor that includes light penetrating surfaces.
  • Designing a pocket beach with indigenous riparian zone, saltmarsh eco-bench, and an offshore large rock kelp reef system.
  • Preparing the Basis of Design document and all design specifications for habitat features.
  • Providing scientific and habitat input to a large multi-disciplinary team of design, structural, traffic, storm water, geotechnical and coastal engineers to maximize beneficial ecological functions within the total design.
  • Interacting with the City of Seattle, stakeholder groups, and urban design specialists to provide habitat benefits that allow for a structurally safe new seawall and the significant amenities and aesthetics of a modern urban waterfront.