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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: CA-86
Chastellet du Gué de Jacob near Safed, 1178–1179; Tour de la Quarantaine , east of Jerusalem; Tell es-Safi (Blanchegarde) Properties in Acre, Israel, including the still-extant Templar Tunnel [1] [2] Château Pèlerin (fr. "Pilgrim Castle"), also known as Atlit Castle, 1218–1291 [3] Sidon, 1260–1268; Beaufort Castle, Lebanon, 1260–1268
Ft. McArthur Tunnel Complex: an abandoned World War II network connecting fortifications in San Pedro, CA. [10] The Lawson Adit is a tunnel constructed underneath UC Berkeley into the Berkeley Hills in the early 1900s for student mining research. [11] US Dept. of Defense Tunnel Warfare Center, China Lake [12] [13]
The historical Burro Schmidt Tunnel is located in the El Paso Mountains of the northern Mojave Desert, in eastern Kern County, southern California. It is a 0.5-mile (0.80 km) mining tunnel dug with hand tools and dynamite over a 38-year period by William "Burro" H. Schmidt (1871–1954).
The $23 million project started on April 8, 1933. Tunnel crews dug from four directions: the two main portals and two shafts. [1]On July 1, 1934, one of the tunnel crews narrowly escaped the tunnel as ground water burst in and began filling the tunnel and shafts at a rate of nearly 8,000 US gallons per minute (0.50 m3/s).
The Wrights Tunnel (also known as the Summit Tunnel, Tunnel 2, or Tunnel 1 after the daylighting of the Cats Canyon tunnel) is a railroad tunnel located in the Santa Cruz Mountains in Santa Clara and Santa Cruz Counties, California. Opened in 1880 after almost two years of construction involving numerous fatalities, the tunnel was at one point ...
The tunnel, concealed with wooden panels and hidden access through a sewer, measured approximately 300 meters on the Mexican side, with dimensions of 1.80 meters in height and 1.20 meters in width.
The initial location for the north end of the tunnel was near Lyons Station Stagecoach Stop, which was abandoned due to frequent cave-ins caused by oil-soaked rock. The north end was moved a little further west towards the present town of Newhall, California. The north end of the tunnel excavation commenced in June 1875.