Elliott Bay Seawall Habitat and Public Space Seattle, Washington Magnusson Klemencic Associates Seattle, Washington After 75 years of corrosion from tides and wind-driven waves, the 3,700-foot-long seawall-the city's largest piece of infrastructure-was replaced with a state-of-the-art seismicresistant version designed to last at least another 75 years. The design also incorporates an integrated salmon migration corridor-a first-ofits-kind structure aimed at enhancing the tidal marine environment. Topped by a new pedestrian promenade that features a custom lightpenetrating sidewalk, the project greatly benefits the city's overall quality of life- both above and below the water's surface. MAY / JUNE 2017 ENGINEERING INC. 21