A workhorse with showhorse trappings as well, the $289-million Sixth Street Viaduct in Los Angeles features a series of technical innovations that sets a new threshold for seismic safety.
Potrero Canyon spans 46 acres of steep slopes along the coastline of the Pacific Palisades. A series of landslides have long plagued homes and properties around the coastal bluffs of the canyon as far back as the 1950s.
