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Seaman-Drake Arch

Seaman-Drake Arch is a engineering 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 Seaman-Drake Arch rather than just read about it. In short: The Seaman-Drake Arch, also known as the Inwood Arch, is a remnant of a hilltop estate built in 1855 by the Seaman family in the Inwood neighborhood of Manhattan in New York City. Located at 5065 Broadway at West 216th Street, the arch was built from Inwood marble quarried nearby.

Seaman-Drake Arch — main illustration
Seaman-Drake Arch — illustration

Key takeaways

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

Reference excerpt

The Seaman-Drake Arch, also known as the Inwood Arch, is a remnant of a hilltop estate built in 1855 by the Seaman family in the Inwood neighborhood of Manhattan in New York City. Located at 5065 Broadway at West 216th Street, the arch was built from Inwood marble quarried nearby. It is 35 feet (10.67 m) tall, 20 feet (6.10 m) deep, and 40 feet (12.19 m) wide, and was once the gateway to the estate. Today, the arch, which is said to be modeled on the Arc de Triomphe in Paris, is partially obscured from view by low-rise commercial buildings, and has been tagged by graffitists; its soft marble facade is decaying. The south side of the structure is used for storage by the transmission repair shop it is behind.

History and description The Seaman family, led by Captain John Seaman, emigrated from the United Kingdom and settled in what is now Hempstead on Long Island in 1647 or 1653. The family eventually acquired 12,000 acres (4,900 ha) there.

Seaman estate In 1851 John Ferris Seaman and his brother Valentine – the sons of Dr. Valentine Seaman, who in the early 1800s was one of the men who brought Edward Jenner's smallpox vaccine to the United States – bought 25 acres (10.12 ha) of hilltop property in Upper Manhattan near Kingsbridge Road (now Broadway), between what would become West 214th and 218th Streets. The site was about a half-mile north of the Dyckman homestead, and the property ran down to Spuyten Duyvil Creek. At the top of the hill, the Seamans built a marble mansion around 1855, apparently intending it as a country home, as the family had another residence in lower Manhattan. The mansion originally featured a domed tower, but this was later converted into a square one. The arch was built from the same marble as the house, and stood at the beginning of a road which wound up and around the hill to the mansion. It originally had large iron gates, the pivots for which are still extant, and probably quarters inside for a gatekeeper. The arch has two niches intended for statues, which are now empty.

The mansion house, sometimes referred to as the "Seaman Castle", – and the estate as "Seaman's Folly" – was principally occupied by John Ferris Seaman, a merchant, who married Ann Drake. Ferris died in 1872 and Ann in 1878, leaving no children. Ann Drake Seaman willed the estate – "my marble house, grounds and outbuildings ... furniture and plate" – to her nephew, Lawrence Drake; 145 relatives contested the will, which was not settled until around 1893.

Subsequent estate use By 1895, the house had become the headquarters of the Suburban Riding and Driving Club, of which Lawrence Drake was a member. The estate originally had a large marble stable, but additional stables and sheds were added for the use of the members' horses. The interior of the mansion was altered for its new role as a clubhouse, with bedrooms becoming private dining rooms, dining halls and parlors becoming a café and reception area, and the house's conservatory becoming a smoking and sun room. The club spent more than $10,000 in the conversion from residence to clubhouse. The club would undoubtedly have found the mansion's location convenient, as it was near the Harlem Speedway, which was built in 1894–98 from West 155th Street to Dyckman Street for the exclusive use of horse-drawn carriages and horseback riders. In 1905, the house was sold to Thomas Dwyer, who lived in the mansion and used the quarters in the arch for his business, which he christened the Marble Arch Company. Dwyer was a contractor, and is known for having built the Soldiers' and Sailors' Monument and part of the Metropolitan Museum of Art. Dwyer sold the Seaman-Drake estate in 1938 for the development of a five-building apartment complex. The 400-unit Park Terrace Gardens on Park Terrace East and West between West 215th and 217th Streets stands on the plot where the mansion was once located. The arch was not part of the sale, and by that time, in fact as early as 1912, low brick buildings had sprung up around the arch – some of them car dealerships which used the archway as an entrance. Since the 1960s, the arch has been part of an auto-body shop. A fire in 1970 seriously damaged the structure of the arch, and left it roofless and open to the elements; one can see into the arch from higher buildings on either side. Inside, the marble walls, which are covered with vines of ivy, block out most of the ambient city noise, creating a "tranquil retreat".

Rental and preservation There was an effort made in 2003 to provide some legal protection for the arch by landmarking it, which received support from New York City Councilman Robert Jackson, but the campaign never came to fruition. In 2009, the commercial property that the arch is a part of was listed for rent at $17,000 a month for about 7,000 square feet (650 m2). The owner explained that he did not want to sell it because he inherited it from his father, who was given the property, including the Seaman-Drake Arch, by a man whose life he saved in World War II. One potential buyer was interested in turning the buildings into a nightclub, while others sought the property for a catering firm and a hair salon. By 2014, the auto body shop that had been renting the space had been evicted, and the property was again listed for rent, this time at $17,500. Potential renters had expressed interest in using it for a bowling alley or, again, a nightclub. The owner of the property expressed a commitment to not raze the arch, saying "Nobody will take the arch down ever." As of 2015, the commercial property remains a transmission repair shop and an auto body shop; the Seaman-Drake Arch has not been landmarked by the New York City Landmarks Preservation Commission, and it is not listed on the National Register of Historic Places. In 1988, Christopher Gray of The New York Times said about the arch:

The marble is decaying, depositing small piles of silvery grains where water drips, and the entire structure is as worn as the steps of an ancient cathedral. ... There is not much real estate development in Inwood, and nothing left to burn inside the arch itself; the main threat to the arch's survival seems to be New York's acidic atmosphere and rain. Until it falls or is taken down, the venerable Seaman-Drake Arch will probably continue to serve as a gateway, though of a quite different sort than that originally imagined.

Gallery

See also

… excerpt ends here. Continue reading the full article.

Illustrations

Seaman-Drake Arch illustration
Seaman-Drake Arch: The Seaman-Drake mansion and arch in 1903
The Seaman-Drake mansion and arch in 1903
Seaman-Drake Arch illustration
Seaman-Drake Arch illustration
Seaman-Drake Arch illustration

Worked examples

Example 1 — a first encounter with Seaman-Drake Arch

Start with the simplest possible case. Write down what Seaman-Drake Arch claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, 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 Seaman-Drake Arch 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 Seaman-Drake Arch 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 Seaman-Drake Arch

In research
Seaman-Drake Arch appears in engineering 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 Seaman-Drake Arch 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
Seaman-Drake Arch is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1855 establishments in New York (state), Arches and vaults in the United States, Broadway (Manhattan), so understanding it makes those chapters shorter.
In everyday life
Look for Seaman-Drake Arch 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 Seaman-Drake Arch in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Seaman-Drake Arch 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 Seaman-Drake Arch out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Seaman-Drake Arch in simple terms?

The Seaman-Drake Arch, also known as the Inwood Arch, is a remnant of a hilltop estate built in 1855 by the Seaman family in the Inwood neighborhood of Manhattan in New York City. Located at 5065 Broadway at West 216th Street, the arch was built from Inwood marble quarried nearby.

Why does Seaman-Drake Arch matter?

Because it connects several engineering 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 Seaman-Drake Arch?

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 Seaman-Drake Arch.

Tags

  • 1855 establishments in New York (state)
  • Arches and vaults in the United States
  • Broadway (Manhattan)
  • Buildings and structures completed in 1855
  • Former buildings and structures in Manhattan
  • Inwood, Manhattan

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