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Tracklaying race of 1869

Tracklaying race of 1869 is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Tracklaying race of 1869 rather than just read about it. In short: The tracklaying race of 1869 was an unofficial contest between tracklaying crews of the Union Pacific and Central Pacific railroads, held during the construction of the first transcontinental railroad. The competition was to determine who would first reach the meeting place at Promontory, Utah.

Tracklaying race of 1869 — main illustration
Tracklaying race of 1869 — illustration

Key takeaways

  • Tracklaying race of 1869 belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Tracklaying race of 1869 to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Tracklaying race of 1869 from memory before moving on to harder problems.

Reference excerpt

The tracklaying race of 1869 was an unofficial contest between tracklaying crews of the Union Pacific and Central Pacific railroads, held during the construction of the first transcontinental railroad. The competition was to determine who would first reach the meeting place at Promontory, Utah. Starting in 1868, the railroad crews set, and subsequently broke, each other's world records for the longest length of track laid in a single day. This culminated in the April 28, 1869, record set by Chinese and Irish crews of the Central Pacific who laid 10 miles 56 feet (16.111 km) of track in one day. That record was broken in August 1870, by about 1,000 feet (300 m), by two crews of the Kansas Pacific, working from opposite ends of the same track.

History

Rivalry In July 1866, the Pacific Railway Act was amended, authorizing the Central Pacific (CP) to build east until it met the line being constructed by the Union Pacific (UP). The amount of land and money each railroad would be granted was proportional to the number of miles of track laid, causing the two railroads to start building in earnest. Their rivalry was notably unfriendly. In February 1869, crews for the UP and CP were grading parallel routes on the Promontory Range. At that time, the UP's primarily Irish crews began bullying the CP's primarily Chinese crews, first throwing clods of earth and escalating to a series of raids in which the UP crews attempted to dislodge the CP by attacking while wielding pick handles. Eventually, the UP crews began setting off heavy charges without warning, seriously injuring several CP workers; when the CP crews began grading at a higher elevation, they retaliated by setting off a surprise explosion, which buried several UP workers alive.

Tracklaying Building the railroad started with surveying the route and grading the roadbed; for the CP, grading was delayed by the route chosen through the rugged Sierra mountain range. During the first five years of construction, the CP spent only 95 weeks laying tracks, while the remainder had been consumed in grading. In the CP's traditional approach to tracklaying, once the grading was complete, a loaded tracklaying car was sent to the end of the line, carrying a single crew and eight pairs of rails along with a commensurate number of ties, spikes, and splices. One pair of rails was unloaded at a time and the tracklaying car only advanced once the crew had completed that pair of rails. When the line curved, the rails were pre-bent (and the inside rail was shortened) before they were loaded onto the tracklaying car. The slow pace of the tracklaying car and limited manpower that could be brought to bear limited the CP to laying just 132 miles (212 km) of track during the first five years of construction from 1863 to 1868, building east from Sacramento, despite adopting speedier techniques for curved rails and splices in 1866. Meanwhile, the UP had built 515 miles (829 km) from Omaha, Nebraska, west to Cheyenne, Wyoming, by 1868. In 1867, General Jack Casement of the UP described their current pace of laying 2+1⁄2 miles (4.0 km) of track per day as "a little slow at first, to get the new hands broke into their places" and confidently predicted they would double the rate to 5 miles (8.0 km) per day by the end of the summer. UP crews under Casement and his brother Daniel would lay 4 to 5 miles (6.4 to 8.0 km) of track in a single day in August 1867, prompting CP Vice President Collis P. Huntington to ask if they should send a spy to watch the UP at work.

In March 1868, a former UP tracklayer joined the CP, happy to share the UP's technique to speed up tracklaying. Rather than have a single crew take on all aspects of tracklaying work, the crews of the Casement brothers were organized more like an assembly line: crews were specialized, employing more men in total, but having each man be responsible for a limited set of tasks such as rail handling, spiking, splicing, etc. In addition, the tracklaying car was advanced over the loose rails, before they were completely spiked in place, allowing work to take place simultaneously along a longer distance of track. One contemporary newspaper account described the UP process in military terms, with workers divided into armies of suppliers, graders, tie setters, and track-layers. Tracklaying in this fashion was limited mainly by supplies and supply lines, typically to 3 miles (4.8 km) per day. The rapid pace of the work was thought to be affecting its quality, but the tracks laid in this manner had no issues in passing mandatory government inspections, which were required to release funds to the UP.

Record-setting pace On August 17, 1868, UP crews laid 4+1⁄2 miles (7.2 km) of track in a single day; their bragging aroused a competitive instinct in CP chief Charles Crocker, who instructed his construction superintendent James Harvey Strobridge to beat it. CP crews responded by laying a few feet beyond 6 miles (9.7 km) on August 19. UP's riposte was to lay 8 miles (13 km) of track in a single day on October 26, working from 3 a.m. until midnight. The disparity in pace continued into 1869; on February 18, Oliver Ames Jr., president of UP, testified before the Congressional Pacific Railroad Committee, pointing out that while the CP was 200 miles (320 km) from the prearranged meeting spot in Ogden, Utah, the UP was only 30 miles (48 km) away, and should be entitled to continue building west past Ogden. CP's Huntington, also testifying that day, retorted UP's pace was purchased at the cost of quality. On March 12, 1869 Mark Hopkins sent the coded message "Roving Delia Fish Dance" to Huntington, letting him know his crews were laying 4 miles (6.4 km) of track per day regularly. This proved the production gains of adopting Casement's techniques and set the stage for the Ten Mile Day of April 28, 1869.

Ten Miles of Track, Laid in One Day

… excerpt ends here. Continue reading the full article.

Illustrations

Tracklaying race of 1869 illustration
Tracklaying race of 1869: 10-mile sign replica at Golden Spike National Historical Park Visitor Center
10-mile sign replica at Golden Spike National Historical Park Visitor Center
Tracklaying race of 1869: Replica sign in the California State Railroad Museum, Sacramento
Replica sign in the California State Railroad Museum, Sacramento
Tracklaying race of 1869: Strobridge and Minkler at Camp Victory, April 28, 1869. Photographed by Alfred A. Hart.
Strobridge and Minkler at Camp Victory, April 28, 1869. Photographed by Alfred A. Hart.
Tracklaying race of 1869: Map of the Promontory Branch and Lucin Cutoff, drawn by Aran Raymond (1981).[18]: 37  Rozel (Camp Victory) and Promontory Summit are labeled on the map.
Map of the Promontory Branch and Lucin Cutoff, drawn by Aran Raymond (1981).[18]: 37  Rozel (Camp Victory) and Promontory Summit are labeled on the map.

Worked examples

Example 1 — a first encounter with Tracklaying race of 1869

Start with the simplest possible case. Write down what Tracklaying race of 1869 claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Tracklaying race of 1869 before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Tracklaying race of 1869 ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Tracklaying race of 1869

In research
Tracklaying race of 1869 appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Tracklaying race of 1869 in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Tracklaying race of 1869 is common in secondary-school and first-year university syllabi. It links to neighbouring topics First transcontinental railroad, so understanding it makes those chapters shorter.
In everyday life
Look for Tracklaying race of 1869 outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Tracklaying race of 1869 in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Tracklaying race of 1869 means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Tracklaying race of 1869 out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tracklaying race of 1869 in simple terms?

The tracklaying race of 1869 was an unofficial contest between tracklaying crews of the Union Pacific and Central Pacific railroads, held during the construction of the first transcontinental railroad. The competition was to determine who would first reach the meeting place at Promontory, Utah.

Why does Tracklaying race of 1869 matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Tracklaying race of 1869?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Tracklaying race of 1869.

Tags

  • First transcontinental railroad

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