seismic retrofit of elevated freeway

seismic retrofit of elevated freeway, 280, columns, concrete, dog patch, elevated freeway, infrastructure, pillars, urban seismic retrofit of elevated freeway, 280, columns, concrete, dog patch, elevated freeway, infrastructure, pillars, urban

seismic retrofit of elevated freeway

Columns supporting the 280 Freeway in the Dog Patch neighborhood of San Francisco.­

The columns have been braced with steel sleeves for seismic retrofit.­ This gives them more resistance to compression stress in case of an earthquake.­

280
columns
concrete
dog patch
elevated freeway
infrastructure
pillars
urban
October 24, 2009
Southern Embarcadero Fwy, San Francisco, CA 94107, USA

Unclassified photos taken in San Francisco Bay Area.­