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Overview | |
---|---|
Location | Near Carlin, Nevada |
Coordinates | 40°43′18″N116°00′51″W / 40.721665°N 116.01408°W |
Route | I-80 |
Operation | |
Opened | September 25, 1975 [1] |
Operator | Nevada Department of Transportation |
Traffic | Automotive |
Character | Interstate Highway system (two bores) |
Vehicles per day | 10000 [2] |
Technical | |
Length | 0.3 miles (0.48 km) [3] |
No. of lanes | 4 lanes in 2 tubes |
Highest elevation | 4,950 feet (1,510 m) [4] |
Overview | |
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Line | Elko Subdivision |
Location | Near Carlin, Nevada at Tonka rail siding |
Operation | |
Opened | 1903 (original railroad bore) |
Operator | Union Pacific Railroad |
Traffic | Rail |
Character | Passenger and freight rail (two bores) |
Technical | |
Length | 1,887 ft (575 m) (SP bore) 2,342 ft (714 m) (WP bore) [5] |
No. of tracks | double track |
Track gauge | 1,435 mm (4 ft 8+1⁄2 in) standard gauge |
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.
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. [6] 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. [7] 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 US$8 million (equivalent to $38,464,800 in 2023 [8] ); 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. [9]
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. [10] 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. [11] [12]
America's first transcontinental railroad was a 1,911-mile (3,075 km) continuous railroad line built between 1863 and 1869 that connected the existing eastern U.S. rail network at Council Bluffs, Iowa, with the Pacific coast at the Oakland Long Wharf on San Francisco Bay. The rail line was built by three private companies over public lands provided by extensive U.S. land grants. Building was financed by both state and U.S. government subsidy bonds as well as by company-issued mortgage bonds. The Western Pacific Railroad Company built 132 miles (212 km) of track from the road's western terminus at Alameda/Oakland to Sacramento, California. The Central Pacific Railroad Company of California (CPRR) constructed 690 miles (1,110 km) east from Sacramento to Promontory Summit, Utah Territory. The Union Pacific Railroad (UPRR) built 1,085 miles (1,746 km) from the road's eastern terminus at the Missouri River settlements of Council Bluffs and Omaha, Nebraska, westward to Promontory Summit.
State Route 14 (SR 14) is a north–south state highway in the U.S. state of California that connects Los Angeles to the northern Mojave Desert. The southern portion of the highway is signed as the Antelope Valley Freeway. Its southern terminus is at Interstate 5 in the Los Angeles neighborhoods of Granada Hills and Sylmar just immediately to the south of the border of the city of Santa Clarita. SR 14's northern terminus is at U.S. Route 395 (US 395) near Inyokern. Legislatively, the route extends south of I-5 to SR 1 in the Pacific Palisades area of Los Angeles; however, the portion south of the junction with I-5 has not been constructed. The southern part of the constructed route is a busy commuter freeway serving and connecting the cities of Santa Clarita, Palmdale, and Lancaster to the rest of the Greater Los Angeles area. The northern portion, from Vincent to US 395, is legislatively named the Aerospace Highway, as the highway serves Edwards Air Force Base, once one of the primary landing strips for NASA's Space Shuttle, as well as the Naval Air Weapons Station China Lake that supports military aerospace research, development and testing. This section is rural, following the line between the hot Mojave desert and the forming Sierra Nevada mountain range. Most of SR 14 is loosely paralleled by a rail line originally built by the Southern Pacific Railroad, and was once the primary rail link between Los Angeles and Northern California. While no longer a primary rail line, the southern half of this line is now used for the Antelope Valley Line of the Metrolink commuter rail system.
A double-track railway usually involves running one track in each direction, compared to a single-track railway where trains in both directions share the same track.
Tennessee Pass elevation 10,424 ft (3,177 m) is a high mountain pass in the Rocky Mountains of central Colorado in the United States. The pass was named after Tennessee, the native state of a group of early prospectors.
The Keddie Wye is a railroad junction in the form of a wye on the Union Pacific Railroad in Plumas County, California, United States. Located at the town of Keddie, it joins the east-west Feather River Route and the "Inside Gateway"—formally, the BNSF Gateway Subdivision—which runs north to Bieber.
State Route 70 is a state highway in the U.S. state of California, connecting SR 99 north of Sacramento with U.S. Route 395 near Beckwourth Pass via the Feather River Canyon. Through the Feather River Canyon, from SR 149 to US 395, SR 70 is the Feather River Scenic Byway, a Forest Service Byway that parallels the ex-Western Pacific Railroad's Feather River Route.
The Northwestern Pacific Railroad is a 271-mile (436 km) mainline railroad from the former ferry connections in Sausalito, California north to Eureka, with a connection to the national railroad system at Schellville. The railroad has gone through a complex history of different ownership and operators but has maintained a generic name of reference as the Northwestern Pacific Railroad, despite no longer being officially named that.
Interstate 80 (I-80) traverses the northern portion of the US state of Nevada. The freeway serves the Reno metropolitan area and passes through the towns of Fernley, Lovelock, Winnemucca, Battle Mountain, Carlin, Elko, Wells, and West Wendover on its way through the state.
State Route 227, most of which is more commonly known locally as Lamoille Highway, is a 20.134-mile-long (32.403 km) state highway in Elko County in northeastern Nevada.
Interstate 70 (I-70) is a mainline route of the Interstate Highway System in the United States connecting Utah and Maryland. The Utah section runs east–west for approximately 232 miles (373 km) across the central part of the state. Richfield is the largest Utah city served by the freeway, which does not serve or connect any urban areas in the state. The freeway was built as part of a system of highways connecting Los Angeles and the Northeastern United States. I-70 was the second attempt to connect southern California to the east coast of the United States via central Utah, the first being a failed attempt to construct a transcontinental railroad. Parts of that effort were reused in the laying out of the route of I-70.
Interstate 70 (I-70) is a transcontinental Interstate Highway in the United States, stretching from Cove Fort, Utah, to Baltimore, Maryland. In Colorado, the highway traverses an east–west route across the center of the state. In western Colorado, the highway connects the metropolitan areas of Grand Junction and Denver via a route through the Rocky Mountains. In eastern Colorado, the highway crosses the Great Plains, connecting Denver with metropolitan areas in Kansas and Missouri. Bicycles and other non-motorized vehicles, normally prohibited on Interstate Highways, are allowed on those stretches of I-70 in the Rockies where no other through route exists.
The Feather River Route is a rail line that was built and operated by the Western Pacific Railroad. It was constructed between 1906 and 1909, and connects the cities of Oakland, California, and Salt Lake City, Utah. The line was built to compete with the Central Pacific Railroad, which at the time held a nearly complete monopoly on Northern California rail service. The route derives its name from its crossing of the Sierra Nevada, where it follows both the North and Middle Forks of the Feather River. The route is famous for its impressive engineering qualities and its considerable scenic value. All of the route is now owned and operated by the Union Pacific Railroad; however, the Union Pacific has transferred significant portions of the route to other lines. The portion still called the Feather River Route by the Union Pacific runs from the California Central Valley to Winnemucca, Nevada and has been divided into three subdivisions named the Sacramento, Canyon and Winnemucca subdivisions.
The Overland Route was a train route operated jointly by the Union Pacific Railroad and the Central Pacific Railroad/Southern Pacific Railroad, between the eastern termini of Council Bluffs, Iowa, and Omaha, Nebraska, and the San Francisco Bay Area, over the grade of the first transcontinental railroad which opened on May 10, 1869. Passenger trains that operated over the line included the Overland Flyer, later renamed the Overland Limited, with its eastern terminal in Chicago.
The Central Corridor is a rail line operated by the Union Pacific Railroad from near Winnemucca, Nevada to Denver, Colorado in the western United States. The line was created after the merger with the Southern Pacific Transportation Company by combining portions of lines built by former competitors. No portion of the line was originally built by the Union Pacific; in fact, some portions were built specifically to compete with the Union Pacific's Overland Route. The line is known for significant feats of engineering while crossing the Wasatch Mountains of Utah and the Rocky Mountains of Colorado. The line features numerous tunnels; the longest and highest of these is the Moffat Tunnel.
The Shafter Subdivision is a rail line owned and operated by the Union Pacific Railroad in the U.S. states of Nevada and Utah. The line begins as a continuation of the Elko Subdivision at the Elko freight yards, and travels east to the junction with the Lynndyl Subdivision of the former Los Angeles and Salt Lake Railroad, adjacent to the Kennecott Smokestack. The line was formerly part of the Western Pacific Railroad. The entire subdivision is part of the Central Corridor; the portion west of Alazon is also part of the Overland Route. Shafter is the name of the rail siding at the junction between this line and the Nevada Northern Railway.
Carlin Canyon is a steep-sided canyon carved by the Humboldt River in southwestern Elko County, Nevada, United States. The California Trail, First transcontinental railroad and Victory Highway have all passed through the canyon in the past. At present, Interstate 80 and the Union Pacific Railroad both traverse the canyon, though both bypass a sharp loop in the canyon via the Carlin Tunnel.
On August 12, 1939, the City of San Francisco train derailed outside of Harney, Nevada, United States, killing 24 and injuring 121 passengers and crew. The derailment was caused by sabotage of the tracks. Despite a manhunt, reward offers, and years of investigation by the Southern Pacific Railroad (SP), the case remains unsolved.
The California Zephyr is a long-distance passenger train operated by Amtrak between Chicago and the San Francisco Bay Area, via Omaha, Denver, Salt Lake City, and Reno. At 2,438 miles (3,924 km), it is Amtrak's longest daily route, and second-longest overall after the Texas Eagle's triweekly continuation from San Antonio to Los Angeles, with travel time between the termini taking approximately 511⁄2 hours. Amtrak claims the route as one of its most scenic, with views of the upper Colorado River valley in the Rocky Mountains, and the Sierra Nevada. The modern train is the second iteration of a train named California Zephyr; the original train was privately operated and ran on a different route through Nevada and California.
The Elko Subdivision is a railway line in Nevada owned and operated by the Union Pacific Railroad running from Weso to the freight yard in Elko. It is part of both the Overland Route and the Central Corridor. The line generally follows the Humboldt River and has several small tunnels while traversing the Palisade and Carlin Canyons, the longest tunnel is called the Carlin Tunnel.