Portland, Oregon, replaced its Harbor Drive highway with Tom McCall Waterfront Park, reconnecting downtown to the Willamette River. Opened in 1978, the park spans 30 acres and prioritizes walking, cycling, and public transit. This pioneering move, driven by urban renewal and sustainability goals, reshaped urban planning by reducing car dependency and reclaiming valuable public space for communities.

Source:  https://www.archdaily.com/1023649/transforming-portland-how-a-demolished-highway-became-a-pioneering-waterfront-park