The Carlin Tunnel is a collective name for a set of four tunnel bores in the Humboldt River's Carlin Canyon, east of Carlin in Elko County, Nevada, United States. The two railroad bores were constructed for different purposes at different times, while the two highway bores were constructed concurrently, all with the goal of bypassing a sharp bend in the river. Currently, two of the bores carry Interstate 80, while the other two bores carry Union Pacific Railroad's Overland Route and Central Corridor. Bridges over the Humboldt River are adjacent to both portals of three tubes, including the two freeway bores and one of the railroad bores.
Carlin Tunnel
The four western portals to the Carlin Tunnel; the two Interstate 80 bores are on the left and the two railroad bores on the right.
The first bore was constructed by the Southern Pacific Railroad in 1903 as part of a straightening of the First transcontinental railroad, prior to this time the railroad followed the curved river through the canyon.[5] The second tunnel was constructed by the Western Pacific Railroad for the Feather River Route. The modern Union Pacific Railroad, which acquired both of these railroad companies, has combined the former competing lines into a dual-track directional running main for uninterrupted traffic, now known as the Elko Subdivision. The former Southern Pacific bore crosses the Humboldt river at each portal, similar to the freeway bores, while the former Western Pacific bore does not cross the river at the tunnel portals.[6]U.S. Route 40 was originally routed on the old railroad grade through the canyon. With the planned construction of Interstate 80 through the area, a third and fourth bore was constructed to accommodate the expected traffic increase and higher traffic speed; these were completed and opened on September 25, 1975.[1] The estimated cost to build the tunnels was $8 million USD (equivelent to $34,687,200 in 2021[7]); at the time this was the most expensive single construction contract awarded by the Nevada Department of Highways, predecessor agency to the Nevada Department of Transportation. Completion was originally scheduled for late 1974, however during boring fragmented rock was discovered which slowed progress.[8]
In addition to these larger tunnels, both railroad grades feature several smaller tunnels as the railroad follows Carlin Canyon and downstream Palisade canyon of the Humboldt River. The railroad bridges and tunnels near Carlin have made news on a few occasions. In 1908, a rock slide nearly caused the Southern Pacific tunnel to collapse resulting in a massive effort to save the rail line.[9] In 1939, the City of San Francisco passenger train derailed on one of the Humboldt river bridges, killing 24 and injuring 121. The incident was ruled sabotage, but remains unsolved. In 2008, a train derailment at a smaller tunnel west of Carlin led to the collapse of one of the Humboldt River bridges. This bridge collapse resulted in nationwide rail traffic delays.[10][11]
^. Nevada Department of Transportation. 2008. Archived from the original on 2010-09-26. Retrieved 2010-05-08.
^Google Maps - Carlin Tunnel (Map). Cartography by GeoEye. Google, Inc. Retrieved 2010-05-08.
^Nevada Road and Recreation Atlas (Map). Benchmark Maps. 2002. p. 43. § F8. ISBN0-929591-81-X.
^. Elko Rose Garden Association. Archived from the original on 2012-02-18. Retrieved 2010-05-07.
^. Elko Rose Garden Association. Archived from the original on 2012-02-17. Retrieved 2010-05-07.
^Johnston, Louis & Williamson, Samuel H. (2023). "What Was the U.S. GDP Then?". MeasuringWorth. Retrieved January 1, 2023. United States Gross Domestic Product deflator figures follow the Measuring Worth series.
^"Rewrite: News from past issues (as republished on March 24, 2023)". Elko Daily Free Press. March 24, 1973. Retrieved March 30, 2023.
^"SP Tunnel may cave in". Los Angeles Times. 1908-08-17. p. I3.
^Damele, Ron. "Yucca Mountain Information Office, Union Pacific Freight Train Derailment". Eureka County Public Works. Retrieved 2010-05-07.
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August 26, 2023
carlin, tunnel, this, article, needs, additional, citations, verification, please, help, improve, this, article, adding, citations, reliable, sources, unsourced, material, challenged, removed, find, sources, news, newspapers, books, scholar, jstor, december, 2. This article needs additional citations for verification Please help improve this article by adding citations to reliable sources Unsourced material may be challenged and removed Find sources Carlin Tunnel news newspapers books scholar JSTOR December 2022 Learn how and when to remove this template message The Carlin Tunnel is a collective name for a set of four tunnel bores in the Humboldt River s Carlin Canyon east of Carlin in Elko County Nevada United States The two railroad bores were constructed for different purposes at different times while the two highway bores were constructed concurrently all with the goal of bypassing a sharp bend in the river Currently two of the bores carry Interstate 80 while the other two bores carry Union Pacific Railroad s Overland Route and Central Corridor Bridges over the Humboldt River are adjacent to both portals of three tubes including the two freeway bores and one of the railroad bores Carlin TunnelThe four western portals to the Carlin Tunnel the two Interstate 80 bores are on the left and the two railroad bores on the right OverviewLineElko SubdivisionLocationNear Carlin Nevada at Tonka rail sidingCoordinates40 43 18 N 116 00 51 W 40 721665 N 116 01408 W 40 721665 116 01408RouteI 80OperationOpened1903 original railroad bore September 25 1975 I 80 bores 1 OperatorNevada Department of TransportationUnion Pacific RailroadTrafficAutomotive and railCharacterInterstate Highway system two bores Passenger and freight rail two bores Vehicles per day10000 2 TechnicalLength0 3 miles 0 48 km 3 No of tracksdouble trackNo of lanes4 lanes in 2 tubesTrack gauge1 435 mm 4 ft 8 1 2 in standard gaugeOperating speed75 miles per hour 121 km h Highest elevation4 950 feet 1 510 m 4 History EditThe first bore was constructed by the Southern Pacific Railroad in 1903 as part of a straightening of the First transcontinental railroad prior to this time the railroad followed the curved river through the canyon 5 The second tunnel was constructed by the Western Pacific Railroad for the Feather River Route The modern Union Pacific Railroad which acquired both of these railroad companies has combined the former competing lines into a dual track directional running main for uninterrupted traffic now known as the Elko Subdivision The former Southern Pacific bore crosses the Humboldt river at each portal similar to the freeway bores while the former Western Pacific bore does not cross the river at the tunnel portals 6 U S Route 40 was originally routed on the old railroad grade through the canyon With the planned construction of Interstate 80 through the area a third and fourth bore was constructed to accommodate the expected traffic increase and higher traffic speed these were completed and opened on September 25 1975 1 The estimated cost to build the tunnels was 8 million USD equivelent to 34 687 200 in 2021 7 at the time this was the most expensive single construction contract awarded by the Nevada Department of Highways predecessor agency to the Nevada Department of Transportation Completion was originally scheduled for late 1974 however during boring fragmented rock was discovered which slowed progress 8 In addition to these larger tunnels both railroad grades feature several smaller tunnels as the railroad follows Carlin Canyon and downstream Palisade canyon of the Humboldt River The railroad bridges and tunnels near Carlin have made news on a few occasions In 1908 a rock slide nearly caused the Southern Pacific tunnel to collapse resulting in a massive effort to save the rail line 9 In 1939 the City of San Francisco passenger train derailed on one of the Humboldt river bridges killing 24 and injuring 121 The incident was ruled sabotage but remains unsolved In 2008 a train derailment at a smaller tunnel west of Carlin led to the collapse of one of the Humboldt River bridges This bridge collapse resulted in nationwide rail traffic delays 10 11 References Edit a b I 80 Carlin Tunnels Improvement Project Substantially Complete Nevada Department of Transportation October 7 2014 Archived from the original on December 7 2014 Retrieved November 26 2014 2008 Annual Traffic Report Nevada Department of Transportation 2008 Archived from the original on 2010 09 26 Retrieved 2010 05 08 Google Maps Carlin Tunnel Map Cartography by GeoEye Google Inc Retrieved 2010 05 08 Nevada Road and Recreation Atlas Map Benchmark Maps 2002 p 43 F8 ISBN 0 929591 81 X Tonka Nevada Elko Rose Garden Association Archived from the original on 2012 02 18 Retrieved 2010 05 07 Carlin Canyon Elko Rose Garden Association Archived from the original on 2012 02 17 Retrieved 2010 05 07 Johnston Louis amp Williamson Samuel H 2023 What Was the U S GDP Then MeasuringWorth Retrieved January 1 2023 United States Gross Domestic Product deflator figures follow the Measuring Worth series Rewrite News from past issues as republished on March 24 2023 Elko Daily Free Press March 24 1973 Retrieved March 30 2023 SP Tunnel may cave in Los Angeles Times 1908 08 17 p I3 Damele Ron Yucca Mountain Information Office Union Pacific Freight Train Derailment Eureka County Public Works Retrieved 2010 05 07 Train Derailment to Disrupt Rail Service Associated Press 2008 12 28 Retrieved 2010 05 07 Wikimedia Commons has media related to Carlin Tunnel Retrieved from https en wikipedia org w index php title Carlin Tunnel amp oldid 1147475529, wikipedia, wiki, book, books, library,
