The seawall runs along Elliott Bay in downtown Seattle. Tetra Tech will assist SDOT in replacing the central portion from S. Washington Street to Pine Street (approximately 3,500 lineal feet), the construction of which is anticipated to cost $285 million. SDOT is seeking to replace the seawall with a long-term solution that meets seismic standards, improves habitat, and provides effective protection for the public, waterfront facilities and economic activities.