
A conceptual pedestrian lane over I-5 between Pike Street and Pine Street, tying into the Pike-Pine commercial corridor and proximity to the busy Convention Center. Click to enlarge and see a before-and-after view. (Graphic by the author)
Amid Seattle’s rapidly growing inner neighborhoods remains the urban scar of Interstate 5, a massive concrete and steel ribbon that is the lasting legacy of 20th century transportation engineers. It helps move thousands of people and tons of freight every day through the biggest city in the Pacific Northwest, but it gives little to those who don’t drive and to people who live and work around it. The problems are obvious: noise, traffic, and poor urban design that makes people on the street feel isolated and wastes valuable urban land. The solution is equally clear but admittedly ambitious: lidding the freeway to mitigate its sights and sounds while simultaneously transforming the public realm of Downtown Seattle.