{"id":null,"ids":[],"kind":"named in documents","name":"Golden Gate Bridge approach viaducts","tied_by":"name","block":null,"release":"v0.7.1","rows_columns":["t","id","year","y","date","kind","topic","outcome","summary","tier","source","leaf","scan","addr","quote","note","title","how","g","rec","sc"],"rows":[["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:27/2",1990,1976,"1976","finding","study or report",null,"Baron 1976 study · finding: studies directed to the main suspension bridge only; no evaluation of the approach viaducts was undertaken","unverified","C123303273",27,"https://archive.org/details/C123303273/page/n26",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:123/1",1990,1990,"","recommendation","study or report",null,"Golden Gate Bridge steel approach viaducts · recommendation: made two to six times stronger with respect to seismic resistance","unverified","C123303273",123,"https://archive.org/details/C123303273/page/n122",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:123/3",1990,1990,"","finding","study or report",null,"Golden Gate Bridge approach viaducts retrofit components · recommendation: foundations, supporting frames, structural bearings, expansion joint restrainers most critical for retrofit","unverified","C123303273",123,"https://archive.org/details/C123303273/page/n122",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:123/4",1990,1990,"","finding","study or report",null,"Golden Gate Bridge approach viaduct trusses · recommendation: require strengthening, somewhat less critical","unverified","C123303273",123,"https://archive.org/details/C123303273/page/n122",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:132/6",1990,1990,"","recommendation","study or report",null,"Golden Gate Bridge approach viaducts · recommendation: most critical retrofit components: foundations, supporting frames, structural bearings, expansion joint restrainers","unverified","C123303273",132,"https://archive.org/details/C123303273/page/n131",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:6/3",1990,1990,"","finding","study or report",null,"Golden Gate Bridge approaches · finding: Fort Point arch and steel girder and truss viaducts are among the most vulnerable parts of the bridge; high damage expected in [name withheld] 8 or greater earthquake","unverified","C123303273",6,"https://archive.org/details/C123303273/page/n5",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,2.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:6/4",1990,1990,"","finding","study or report",null,"Golden Gate Bridge approach viaducts · finding: Substantial risk of collapse or impending collapse after a Richter 8 or greater earthquake; viaducts would no longer carry traffic","unverified","C123303273",6,"https://archive.org/details/C123303273/page/n5",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,6.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C123303273:19/1",1990,1990,"about 1980","action","study or report",null,"Golden Gate Bridge approach viaducts · other: seismically retrofit with joint restrainers and foundation improvements","unverified","C123303273",19,"https://archive.org/details/C123303273/page/n18",null,null,null,"Golden Gate Bridge seismic evaluation","n","a",0,-1.0]]}