List of tunnels documented by the Historic American Engineering Record in California

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)	Status	Built	Documented	Carries	Crosses	Location	County	Coordinates
CA-30 CA-199	Central Pacific Railroad, Clipper Gap Tunnel Central Pacific Transcontinental Railroad, Tunnel 'O'	Abandoned	1873	1984 1997	Union Pacific Railroad		Clipper Gap	Placer	38°58′47″N 120°59′56″W
CA-86	Big Oak Flat Road Tunnel No. 1	Extant	1937	1991	New Big Oak Flat Road	Mountain spur	Yosemite Village	Mariposa	37°43′31″N 119°42′15″W
CA-87	Big Oak Flat Road Tunnel No. 2	Extant	1937	1991	New Big Oak Flat Road	Mountain spur	Yosemite Village	Mariposa	37°43′24″N 119°41′54″W
CA-88	Big Oak Flat Road Tunnel No. 3	Extant	1938	1991	New Big Oak Flat Road	Mountain spur	Yosemite Village	Mariposa	37°43′03″N 119°43′23″W
CA-105	Wawona Tunnel	Extant	1932	1991	SR 41 (Wawona Road)	Turtleback Dome	Yosemite Village	Mariposa	37°42′57″N 119°41′09″W
CA-130-E	Santa Ana River Hydroelectric System, Flume and Tunnel below Fish Screen		1898	1991			Redlands	San Bernardino
CA-130-G	Santa Ana River Hydroelectric System, Flumes and Tunnels below Sandbox		1898	1991			Redlands	San Bernardino
CA-130-R	Santa Ana River Hydroelectric System, Abandoned Tunnel	Abandoned	1898	1991	Santa Ana Canal		Redlands	San Bernardino
CA-139	Forts Baker–Barry Tunnel	Extant	1918	1993	Bunker Road	Lime Point Ridge	Sausalito	Marin	37°50′27″N 122°29′26″W
CA-153-A	Salinas River Project, Cuesta Tunnel	Extant	1942	1994	Aqueduct	Santa Lucia Range	San Luis Obispo	San Luis Obispo	35°21′23″N 120°38′22″W
CA-162	Mile Rock Tunnel	Extant	1915	1994	Storm drain	48th Avenue	San Francisco	San Francisco	37°46′24″N 122°30′32″W
CA-197	Central Pacific Transcontinental Railroad, Tunnel No. 18	Extant	1909	1997	Union Pacific Railroad		Newcastle	Placer	38°52′33″N 121°07′42″W
CA-198	Central Pacific Transcontinental Railroad, Tunnel No. 23	Extant	1909	1997	Union Pacific Railroad		Applegate	Placer	38°58′46″N 120°59′57″W
CA-200	Central Pacific Transcontinental Railroad, Tunnel No. 24	Extant	1910	1997	Union Pacific Railroad		Applegate	Placer	38°58′57″N 120°59′53″W
CA-201	Central Pacific Transcontinental Railroad, Tunnel No. 25	Extant	1910	1997	Union Pacific Railroad		Applegate	Placer	38°59′05″N 120°59′47″W
CA-202	Central Pacific Transcontinental Railroad, Tunnel No. 26	Extant	1909	1997	Union Pacific Railroad		Applegate	Placer	38°59′13″N 120°59′38″W
CA-203	Central Pacific Transcontinental Railroad, Tunnel No. 27	Extant	1910	1997	Union Pacific Railroad		Applegate	Placer	38°59′32″N 120°59′17″W
CA-204	Central Pacific Transcontinental Railroad, Tunnel No. 28	Extant	1910	1997	Union Pacific Railroad	Hotchkiss Hill	Applegate	Placer	39°00′16″N 120°58′48″W
CA-205	Central Pacific Transcontinental Railroad, Tunnel No. 29	Extant	1909	1997	Union Pacific Railroad		Applegate	Placer	39°01′15″N 120°58′22″W
CA-206	Central Pacific Transcontinental Railroad, Tunnel No. 34	Extant	1913	1997	Union Pacific Railroad	Cape Horn	Colfax	Placer	39°06′45″N 120°55′48″W
CA-207	Central Pacific Transcontinental Railroad, Tunnel No. 1	Extant	1868	1997	Union Pacific Railroad		Blue Canyon	Placer	39°14′42″N 120°43′23″W
CA-208	Central Pacific Transcontinental Railroad, Tunnel No. 35	Extant	1924	1997	Union Pacific Railroad		Yuba Pass	Nevada	39°19′24″N 120°35′34″W
CA-209	Central Pacific Transcontinental Railroad, Tunnel No. 36	Extant	1924	1997	Union Pacific Railroad		Yuba Pass	Nevada	39°19′35″N 120°35′19″W
CA-210	Central Pacific Transcontinental Railroad, Tunnel No. 37	Extant	1925	1997	Union Pacific Railroad		Yuba Pass	Nevada	39°19′26″N 120°34′27″W
CA-211	Central Pacific Transcontinental Railroad, Tunnel No. 38	Extant	1924	1997	Union Pacific Railroad		Cisco	Placer	39°18′01″N 120°32′27″W
CA-212	Central Pacific Transcontinental Railroad, Tunnel No. 3	Extant	1868	1997	Union Pacific Railroad		Cisco	Placer	39°18′04″N 120°32′22″W
CA-213	Central Pacific Transcontinental Railroad, Tunnel No. 39	Extant	1924	1997	Union Pacific Railroad		Cisco	Placer	39°18′00″N 120°32′05″W
CA-214	Central Pacific Transcontinental Railroad, Tunnel No. 4	Extant	1868	1997	Union Pacific Railroad		Cisco	Placer	39°18′01″N 120°32′04″W
CA-215	Central Pacific Transcontinental Railroad, Tunnel No. 41	Extant	1925	1997	Union Pacific Railroad	Mount Judah	Donner	Placer	39°18′18″N 120°19′03″W
CA-218	Southern Pacific Railroad Natron Cutoff, Tunnel No. 17	Extant	1909	1997	Southern Pacific Railroad, Cascade Subdivision	Dorris Hill	Dorris	Siskiyou	41°58′18″N 121°54′42″W
CA-219	Southern Pacific Railroad Natron Cutoff, Tunnel No. 18	Extant	1909	1997	Southern Pacific Railroad, Cascade Subdivision	Dorris Hill	Dorris	Siskiyou	41°59′46″N 121°54′42″W
CA-265-G	Figueroa Street Tunnels	Extant	1931	1999	SR 110 (Arroyo Seco Parkway) northbound	Elysian Park	Los Angeles	Los Angeles	34°04′23″N 118°14′02″W
CA-298-AG	Los Angeles Aqueduct, Tunnel Interior	Extant	1913	2001	Los Angeles Aqueduct		Los Angeles	Los Angeles
CA-315-T	Douglas Aircraft Company Long Beach Plant, Pedestrian Tunnels	Abandoned	1941	2002	Pedestrian ways	SR 19 (Lakewood Boulevard)	Long Beach	Los Angeles	33°49′38″N 118°08′31″W
CA-2259-D	Burlington Northern Santa Fe Railroad, Cajon Subdivision, Tunnel No. 1	Daylighted	1913	2007	BNSF Railway, Cajon Subdivision	Cajon Pass	Devore	San Bernardino	34°20′01″N 117°28′05″W
CA-2259-E	Burlington Northern Santa Fe Railroad, Cajon Subdivision, Tunnel No. 2	Daylighted	1923	2007	BNSF Railway, Cajon Subdivision	Cajon Pass	Devore	San Bernardino	34°19′56″N 117°28′24″W

See also

• List of bridges documented by the Historic American Engineering Record in California