The Lucin Cutoff is a railroad line in

Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...

United States The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territorie ...

that runs from Ogden to its namesake in Lucin. The most prominent feature of the cutoff was a

railroad Rail transport (also known as train transport) is a means of transport that transfers passengers and goods on wheeled vehicles running on rails, which are incorporated in tracks. In contrast to road transport, where the vehicles run on a pre ...

trestle ATLAS-I (Air Force Weapons Lab Transmission-Line Aircraft Simulator), better known as Trestle, was a unique electromagnetic pulse (EMP) generation and testing apparatus built between 1972 and 1980 during the Cold War at Sandia National Laborato ...

crossing the

Great Salt Lake The Great Salt Lake is the largest saltwater lake in the Western Hemisphere and the eighth-largest terminal lake in the world. It lies in the northern part of the U.S. state of Utah and has a substantial impact upon the local climate, particula ...

, which was in use from 1904 until the late 1950s, when it was replaced by an

earthen Soil, also commonly referred to as earth or dirt, is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life. Some scientific definitions distinguish ''dirt'' from ''soil'' by restricting the former term ...

causeway A causeway is a track, road or railway on the upper point of an embankment across "a low, or wet place, or piece of water". It can be constructed of earth, masonry, wood, or concrete. One of the earliest known wooden causeways is the Sweet Tra ...

. The cutoff was originally built by the

Southern Pacific Railroad The Southern Pacific (or Espee from the railroad initials- SP) was an American Class I railroad network that existed from 1865 to 1996 and operated largely in the Western United States. The system was operated by various companies under the ...

as a means of shortening the

First transcontinental railroad North America's first transcontinental railroad (known originally as the "Pacific Railroad" and later as the " Overland Route") was a continuous railroad line constructed between 1863 and 1869 that connected the existing eastern U.S. rail netwo ...

. Today the cutoff is owned and operated by the

Union Pacific Railroad The Union Pacific Railroad , legally Union Pacific Railroad Company and often called simply Union Pacific, is a freight-hauling railroad that operates 8,300 locomotives over routes in 23 U.S. states west of Chicago and New Orleans. Union Paci ...

as a significant part of the Lakeside Subdivision, which runs from Ogden to

Wells, Nevada Wells is a small city in Elko County, in northeast Nevada in the western United States. The population was 1,292 at the 2010 census. Wells is located at the junction of Interstate 80 and U.S. Route 93, approximately east of Elko and is part of ...

, and is one of the many subdivisions of the Overland Route. Due to the obstruction of water flow caused by the Lucin Cutoff, the Great Salt Lake appears to be different colors in aerial photographs; water north of the Cutoff appears red or brown, while water south of the Cutoff is more green.

History

Original construction

Built by the

Southern Pacific Company Southern may refer to: Businesses * China Southern Airlines, airline based in Guangzhou, China * Southern Airways, defunct US airline * Southern Air, air cargo transportation company based in Norwalk, Connecticut, US * Southern Airways Express, M ...

(SP) between February 1902 and March 1904, the cutoff bypassed the original

Central Pacific Railroad The Central Pacific Railroad (CPRR) was a rail company chartered by Pacific Railroad Acts, U.S. Congress in 1862 to build a railroad eastwards from Sacramento, California, to complete the western part of the "First transcontinental railroad" in N ...

route Route or routes may refer to: * Route (gridiron football), a path run by a wide receiver * route (command), a program used to configure the routing table * Route, County Antrim, an area in Northern Ireland * ''The Route'', a 2013 Ugandan film * Ro ...

through

Promontory Summit Promontory is an area of high ground in Box Elder County, Utah, United States, 32 mi (51 km) west of Brigham City and 66 mi (106 km) northwest of Salt Lake City. Rising to an elevation of 4,902 feet (1,494 m) above sea ...

where the

golden spike The golden spike (also known as The Last Spike) is the ceremonial 17.6-karat gold final spike driven by Leland Stanford to join the rails of the first transcontinental railroad across the United States connecting the Central Pacific Railroad ...

was driven in 1869. By going west across the lake from Ogden to Lucin, it cut off the original route and also significantly decreased curvature and grades. Built under the direction of SP chief engineer William Hood, a team of 3,000 SP workers worked seven days a week to build the line. When the line opened, it included short causeways extending from the western shore of the lake and the edge of Promontory Point, connected with a nearly wooden

. The cutoff also included a causeway which spanned Bear River Bay from the eastern shore of the lake to Promontory Point. This section included a trestle to allow Bear River water to flow into the lake. Mid Lake Station Great Salt Lake Souithern Pacific Railroad

Mid Lake Station Great Salt Lake Souithern Pacific Railroad

By 1908, five passenger trains and seven freight trains were using the Lucin Cutoff in each direction daily. In 1942, the original track between Lucin and

Corinne, Utah Corinne ( ) is a town in Box Elder County, Utah, United States. The population was 685 at the 2010 census. Geography Corinne is located in southeastern Box Elder County, on the west side of the Bear River. It is the last town on the river bef ...

was removed, including the remaining spikes on Promontory Point, and the scrap metal was donated to the war effort. In late 1944, the Cutoff was the site of a

train wreck A train wreck, train collision, train accident or train crash is a type of disaster involving one or more trains. Train wrecks often occur as a result of miscommunication, as when a moving train meets another train on the same track; or an acci ...

in which 48 people were killed. A westbound mail express train ran into the back of a slower moving passenger train in thick fog.

Trestle replacement

The trestle was functionally replaced in the late 1950s with a parallel dirt and rock

built under contract by Morrison-Knudsen of

Boise, Idaho Boise (, , ) is the capital and most populous city of the U.S. state of Idaho and is the county seat of Ada County. On the Boise River in southwestern Idaho, it is east of the Oregon border and north of the Nevada border. The downtown are ...

. The trestle remained in limited use alongside the causeway until roughly 1975. The railroad eventually sold salvage rights to the trestle and Cannon Structures, Inc., through its Trestlewood division, began to dismantle it in the early 1990s. Trestlewood continues to market and sell the salvaged trestle wood.

Openings in the causeway

The causeway prevented lake water from flowing as freely as the open trestle had, and to help mitigate effects, two culverts were included in the original causeway construction. The culverts allowed for boat traffic and a limited amount of water to flow from the lake's southern arm (where surrounding freshwater rivers emptied into the lake) into the lake's northern arm. In the early 1980s, Utah experienced heavy flooding, and much of the extra water along the

Wasatch Front The Wasatch Front is a metropolitan region in the north-central part of the U.S. state of Utah. It consists of a chain of contiguous cities and towns stretched along the Wasatch Range from approximately Provo in the south to Logan in the north ...

flowed into the Great Salt Lake. This resulted in the lake experiencing historic high water levels and flooding nearby landowners. To aid the two culverts in channeling water to the northern arm, the State of Utah constructed a bridge at the western end of the causeway. The state breached the causeway under the new bridge on August 1, 1984, allowing pent-up water from the southern arm to flow into the northern arm. The continual slow sinking of the causeway has on occasion required more material to raise its height above the lake level. During the flooding of the 1980s, this buildup included placing 1,430 surplus

railcars A railcar (not to be confused with a railway car) is a self-propelled railway vehicle designed to transport passengers. The term "railcar" is usually used in reference to a train consisting of a single coach (carriage, car), with a drive ...

along the northern edge of the causeway and filling them with rock to act as

gabion A gabion (from Italian ''gabbione'' meaning "big cage"; from Italian ''gabbia'' and Latin ''cavea'' meaning "cage") is a cage, cylinder or box filled with rocks, concrete, or sometimes sand and soil for use in civil engineering, road building, ...

s (this feature is known as the "Boxcar Seawall.") In March 2011, Union Pacific Railroad (UP) requested permission to close the two 1950s-era culverts because of damage related to age and a sinking of the causeway into the lake bed; the two culverts were closed in 2012 and 2013. To mitigate the effects, the railroad was required to build a bridge and breach the causeway under that bridge. Construction of a bridge was completed in fall 2016, although the railroad agreed to delay opening the breach for a few months, due to environmental and water level concerns. The causeway was breached beneath the 180-foot bridge on December 1, 2016. Since the opening of the causeway the level of the water in the arms of the lake has begun to equalize. As of April 30, 2017, the level of the lake in the northern arm is within a foot of the southern arm. Due to the

Southwestern North American megadrought The southwestern North American megadrought is an ongoing megadrought in the southwestern region of North America that began in 2000. This megadrought is the driest 22-year period since at least 800 CE. The megadrought has prompted the decla ...

, the amount of fresh water flowing into the southern arm of the lake had dropped significantly enough that, during the summer of 2022, a berm was constructed in the breach beneath the 2016 bridge. This berm slows the flow of saltier water from the northern arm of the lake into the southern arm, as the increased salinity was beginning to have effects on the ecology of the southern part of the lake. Even though the lake's elevation in the southern part remained slightly higher than the northern part, the saltier water in the northern arm (which is denser and heavier) was able to push along the bottom of the breach into the southern arm of the lake.

References

External links