__NOTOC__ This is a list of tunnels documented by the Historic American Engineering Record in the US state of California.
Tunnels Survey No.Name (as assigned by HAER)StatusBuiltDocumentedCarriesCrossesLocationCountyCoordinatesCentral Pacific Railroad, Clipper Gap TunnelCentral Pacific Transcontinental Railroad, Tunnel 'O'Abandoned187319841997Union Pacific RailroadClipper GapPlacerBig Oak Flat Road Tunnel No. 1Extant19371991New Big Oak Flat RoadMountain spurYosemite VillageMariposaBig Oak Flat Road Tunnel No. 2Extant19371991New Big Oak Flat RoadMountain spurYosemite VillageMariposaBig Oak Flat Road Tunnel No. 3Extant19381991New Big Oak Flat RoadMountain spurYosemite VillageMariposaWawona TunnelExtant19321991Turtleback DomeYosemite VillageMariposaSanta Ana River Hydroelectric System, Flume and Tunnel below Fish Screen18981991RedlandsSan BernardinoSanta Ana River Hydroelectric System, Flumes and Tunnels below Sandbox18981991RedlandsSan BernardinoSanta Ana River Hydroelectric System, Abandoned TunnelAbandoned18981991Santa Ana CanalRedlandsSan BernardinoForts Baker–Barry TunnelExtant19181993Bunker RoadLime Point RidgeSausalitoMarinSalinas River Project, Cuesta TunnelExtant19421994AqueductSanta Lucia RangeSan Luis ObispoSan Luis ObispoMile Rock TunnelExtant19151994Storm drain48th AvenueSan FranciscoSan FranciscoCentral Pacific Transcontinental Railroad, Tunnel No. 18Extant19091997Union Pacific RailroadNewcastlePlacerCentral Pacific Transcontinental Railroad, Tunnel No. 23Extant19091997Union Pacific RailroadApplegatePlacerCentral Pacific Transcontinental Railroad, Tunnel No. 24Extant19101997Union Pacific RailroadApplegatePlacerCentral Pacific Transcontinental Railroad, Tunnel No. 25Extant19101997Union Pacific RailroadApplegatePlacerCentral Pacific Transcontinental Railroad, Tunnel No. 26Extant19091997Union Pacific RailroadApplegatePlacerCentral Pacific Transcontinental Railroad, Tunnel No. 27Extant19101997Union Pacific RailroadApplegatePlacerCentral Pacific Transcontinental Railroad, Tunnel No. 28Extant19101997Union Pacific RailroadHotchkiss HillApplegatePlacerCentral Pacific Transcontinental Railroad, Tunnel No. 29Extant19091997Union Pacific RailroadApplegatePlacerCentral Pacific Transcontinental Railroad, Tunnel No. 34Extant19131997Union Pacific RailroadCape HornColfaxPlacerCentral Pacific Transcontinental Railroad, Tunnel No. 1Extant18681997Union Pacific RailroadBlue CanyonPlacerCentral Pacific Transcontinental Railroad, Tunnel No. 35Extant19241997Union Pacific RailroadYuba PassNevadaCentral Pacific Transcontinental Railroad, Tunnel No. 36Extant19241997Union Pacific RailroadYuba PassNevadaCentral Pacific Transcontinental Railroad, Tunnel No. 37Extant19251997Union Pacific RailroadYuba PassNevadaCentral Pacific Transcontinental Railroad, Tunnel No. 38Extant19241997Union Pacific RailroadCiscoPlacerCentral Pacific Transcontinental Railroad, Tunnel No. 3Extant18681997Union Pacific RailroadCiscoPlacerCentral Pacific Transcontinental Railroad, Tunnel No. 39Extant19241997Union Pacific RailroadCiscoPlacerCentral Pacific Transcontinental Railroad, Tunnel No. 4Extant18681997Union Pacific RailroadCiscoPlacerCentral Pacific Transcontinental Railroad, Tunnel No. 41Extant19251997Union Pacific RailroadMount JudahDonnerPlacerSouthern Pacific Railroad Natron Cutoff, Tunnel No. 17Extant19091997Southern Pacific Railroad, Cascade SubdivisionDorris HillDorrisSiskiyouSouthern Pacific Railroad Natron Cutoff, Tunnel No. 18Extant19091997Southern Pacific Railroad, Cascade SubdivisionDorris HillDorrisSiskiyouFigueroa Street TunnelsExtant19311999 northboundElysian ParkLos AngelesLos AngelesLos Angeles Aqueduct, Tunnel InteriorExtant19132001Los Angeles AqueductLos AngelesLos AngelesDouglas Aircraft Company Long Beach Plant, Pedestrian TunnelsAbandoned19412002Pedestrian waysLong BeachLos AngelesBurlington Northern Santa Fe Railroad, Cajon Subdivision, Tunnel No. 1Daylighted19132007BNSF Railway, Cajon SubdivisionCajon PassDevoreSan BernardinoBurlington Northern Santa Fe Railroad, Cajon Subdivision, Tunnel No. 2Daylighted19232007BNSF Railway, Cajon SubdivisionCajon PassDevoreSan Bernardino
See also List of bridges documented by the Historic American Engineering Record in California
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