{"id":null,"ids":[],"kind":"named in documents","name":"Coast Range Tunnel","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":[["d","qipu:sf/decision/journalofproceed1924sanfrich:1074/1",1924,1924,"1924-08-07","ballot_measure","water-sewers",null,"Public Utilities Committee proposes an $8,000,000 (≈ $157.6 million in 2026 dollars) bond election to fund the Coast Range tunnel for the Hetch Hetchy water supply.","quoted","journalofproceed1924sanfrich",1074,"https://archive.org/details/journalofproceed1924sanfrich/page/n1073",null,"Aqueduct Tunnel. Coast Range Division. This tunnel, 31 miles in length and to cost either",null,null,"n","a",0,0.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124889945:42/7",1985,1927,"1927","project","study or report",null,"Coast Range Tunnel · built: tunnel drilling started after budget adopted in 1927","unverified","C124889945",42,"https://archive.org/details/C124889945/page/n41",null,null,null,"San Francisco water & power : a history of the Municipal Water Department and Hetch Hetchy System","n","a",0,3.0],["d","qipu:sf/decision/journalofproceed26part2sanfrich:719/1",1931,1931,"1931-10-05","other","water-sewers",null,"City Engineer reports wood stave pipe is unsuitable for the emergency water pipeline bypassing the Coast Range tunnel.","quoted","journalofproceed26part2sanfrich",719,"https://archive.org/details/journalofproceed26part2sanfrich/page/n698",null,"Wood Stave Pipe in Emergency Pipe Lines. September 30, 1931. To the Public Utilities Committee of the Board of Supervisors",null,null,"n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124889945:43/5",1985,1932,"1932","event","study or report",null,"Coast Range Tunnel · event: Two-year delay in initial funding for the Coast Range Tunnel; 1932 critics and second-guessers","unverified","C124889945",43,"https://archive.org/details/C124889945/page/n42",null,null,null,"San Francisco water & power : a history of the Municipal Water Department and Hetch Hetchy System","n","a",0,-1.0],["d","qipu:sf/decision/journalofproceed27sanfrich:1501/2",1932,1932,"1932-08-15","contract","water-sewers","passed","The Board authorized a $100 (≈ $2,459 in 2026 dollars)-a-year lease from N. M. Freitas for gravel for the Coast Range Tunnel.","quoted","journalofproceed27sanfrich",1501,"https://archive.org/details/journalofproceed27sanfrich/page/n1501",null,"Authorizing the Mayor and Clerk of the Board of Supervisors to Enter Lease With",null,null,"n","a",0,-0.76],["d","qipu:sf/decision/journalofproceed31sanfrich:1751/2",1936,1936,"1936-10-19","resolution","water-sewers","passed","City adopted resolution extending to November 1, 1937 the time to claim spring damage from the Coast Range Tunnel, and furnishing water to Annie E. Murphy's land.","quoted","journalofproceed31sanfrich",1751,"https://archive.org/details/journalofproceed31sanfrich/page/n1751",null,"Extending Time of Furnishing Water to Land of Annie E. Murphy. (Code No. 15.034)",null,null,"n","a",0,2.49],["d","qipu:sf/decision/journalofproceed32sanfrich:1852/2",1937,1937,"1937-10-18","resolution","water-sewers","passed","Board extended to November 1, 1938 the deadline for water-supply damage claims by Annie E. Murphy over the Coast Range Tunnel easement.","quoted","journalofproceed32sanfrich",1852,"https://archive.org/details/journalofproceed32sanfrich/page/n1843",null,"Extending Time of Furnishing Water to Land of Annie E. Murphy. (Code No. 15.03) Also, Resolution No. 3596",null,null,"n","a",0,2.49],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124889945:42/6",1985,1985,"","project","study or report",null,"Coast Range Tunnel · other: 28.5-mile long tunnel from [name withheld] to [name withheld] in two sections","unverified","C124889945",42,"https://archive.org/details/C124889945/page/n41",null,null,null,"San Francisco water & power : a history of the Municipal Water Department and Hetch Hetchy System","n","a",0,-2.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124889945:42/8",1985,1985,"","finding","study or report",null,"Coast Range Tunnel · finding: problems have not recurred after a half century of constant use; regular inspections confirm the tunnel","unverified","C124889945",42,"https://archive.org/details/C124889945/page/n41",null,null,null,"San Francisco water & power : a history of the Municipal Water Department and Hetch Hetchy System","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124889945:43/2",1985,1985,"","event","study or report",null,"Coast Range Tunnel · event: Methane gas first detected in Mocho Shaft; more stringent precautionary safety measures imposed","unverified","C124889945",43,"https://archive.org/details/C124889945/page/n42",null,null,null,"San Francisco water & power : a history of the Municipal Water Department and Hetch Hetchy System","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124889945:43/3",1985,1985,"","project","study or report",null,"Coast Range Tunnel · other: 25-mile long tunnel divided into six work sections by two portals (Tesla and Alameda East) and five shafts","unverified","C124889945",43,"https://archive.org/details/C124889945/page/n42",null,null,null,"San Francisco water & power : a history of the Municipal Water Department and Hetch Hetchy System","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124889945:43/4",1985,1985,"","project","study or report",null,"Coast Range Tunnel · other: Lined entirely with concrete, 10.5 foot diameter tunnel","unverified","C124889945",43,"https://archive.org/details/C124889945/page/n42",null,null,null,"San Francisco water & power : a history of the Municipal Water Department and Hetch Hetchy System","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124889945:43/6",1985,1985,"","event","study or report",null,"Coast Range Tunnel · event: Project cost the lives of twelve men","unverified","C124889945",43,"https://archive.org/details/C124889945/page/n42",null,null,null,"San Francisco water & power : a history of the Municipal Water Department and Hetch Hetchy System","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124889945:43/8",1985,1985,"","event","study or report",null,"Coast Range Tunnel · event: New Charter required public bidding to complete the Coast Range Tunnel project","unverified","C124889945",43,"https://archive.org/details/C124889945/page/n42",null,null,null,"San Francisco water & power : a history of the Municipal Water Department and Hetch Hetchy System","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124889945:54/2",1985,1985,"","project","study or report",null,"Coast Range Tunnel and San Joaquin pipelines · approved: $24 million bond issue for Coast Range Tunnel and San Joaquin pipelines approved 7 to 1","unverified","C124889945",54,"https://archive.org/details/C124889945/page/n53",null,null,null,"San Francisco water & power : a history of the Municipal Water Department and Hetch Hetchy System","n","a",0,-1.0],["f","dl-sf-facts-v1.1-haiku55-2026-10/C124889945:43/1",1985,1985,"July 17, 1931","event","study or report",null,"[name withheld] east tunnel methane explosion · event: methane gas encountered; explosion killed twelve men","unverified","C124889945",43,"https://archive.org/details/C124889945/page/n42",null,null,null,"San Francisco water & power : a history of the Municipal Water Department and Hetch Hetchy System","n","a",0,1.0]]}