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Photo Description Building Type Original Structure Type Retrofit System Type Year of Retrofit Uploaded by:

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Russian Hill building
Steel frame w/ cover-plated beams installed (per my sidewalk observation).
Residential Wood Steel 2002 David Bonowitz

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4-story Victorian
Diagonal braces installed in parking level (per my sidewalk observation).
Residential Wood Steel Don't know David Bonowitz

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Hearst Memorial Mining Building
Hearst Memorial Mining Hall (built in 1907) is an imposing four-story structure originally made of unreinforced brick masonry with exterior cladding of granite masonry...
Institutional Unreinforced Brick Isolation 2002 Private

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123 Faith St, S.F.
Partial structural upgrade
Residential Wood Wood 2010 Ken Kelton Construction

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Homeowner participant
I used the prescriptive plan set and pulled my own permit. I accomplished about 1/3 of the work and used a Anderson-Nieswander to finish the rest for about $3K...
Residential Wood Steel 2011 Private

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Benicia-Martinez Bridge
Old truss bridge retrofit with big friction pendulum bearings. A railroad bridge sits on the left. Note: A new bridge was also built to the east of the railroad bridge...
Bridge or Transit Structure Steel Steel Don't know Private

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Old Carquinez Bridge
There were two old Carquinez Bridges. Caltrans built a third (suspension bridge) and removed the old (middle) one from the 1920's...
Bridge or Transit Structure Steel Steel Don't know Private

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Richmond San Rafael Bridge
Several different devices (visuous dampers, strengthening, etc.) used for the retrofit. Retrofit is designed to a level that, at a minimum, will ensure that the bridge will remain standing in an earthquake.
Bridge or Transit Structure Steel Steel Don't know Private

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San Mateo Hayward Bridge
Retrofit work included work to the foundation, strengthening or replacing structural elements, adding isolation and dampening features
Bridge or Transit Structure Steel Steel Don't know Private

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Fort Mason Building 241
Seismic retrofit by the National Park Service prompted by change of use of the building.
Institutional Wood Concrete 2009 Brian Kehoe

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