"A number of West Coast freeways have been decommissioned and demolished over the years — Harbor Drive in Portland in the 1970s, the Embarcadero Freeway in San Francisco in the 2000s. Doyle Drive in San Francisco is currently being demolished. And the long-delayed project to remove the Alaskan Way Viaduct, a raised freeway that mars downtown Seattle's waterfront and will be replaced with a tunnel, resumed on Dec. 22 when Bertha, a giant tunnel-boring machine, finally got repaired.
But in Southern California, the freeway is king. It may be impossible to build a new freeway in L.A. County, but it's damn near unthinkable to remove one.
That may be about to change."