The Washington Monument is a monolithic, white marble obelisk sitting on The Mall in Washington, DC as a memorial to the United States of America's first president, George Washington.

The momument was designed by Robert Mills, a prominent architect of the time. Its cornerstone was laid on July 4, 1848; the capstone was set on December 6, 1884; the completed monument was dedicated on February 21, 1885 and officially opened to the public on October 9, 1888.

The Washington Monument casts its reflection in the aptly named Reflecting Pool, a rectangular lake extending in the direction of the Monument from the Lincoln Memorial.

Table of contents
1 The Motivation for the Monument
2 History

The Motivation for the Monument

Alone among the Founders of the United States George Washington earned the title "Father of his Country" in recognition of his leadership in the cause of American independence. Appointed commander of the Continental Army in 1775, he molded a fighting force that won independence from Great Britain. In 1787 as President of the Constitutional Convention, he helped guide the deliberations to form a government that has lasted for more than 200 years. Two years later he was unanimously elected the first President of the United States. Washington defined the Presidency and helped develop the relationships among the three branches of government. He established precedents that successfully launched the new government on its course. Washington remained ever mindful of the ramifications of his decisions and actions, for he was a consummate statesman. With this monument the citizens of the United States show their enduring gratitude and respect.

The Monument's Dimensions

  • Total height of monument:
    555 feet, 5 1/8 inches (169.29 meters)
  • Height from lobby to observation level:
    500 feet or 50 stories (152.40 meters)
  • Width at base of monument:
    55 feet 1 1/2 inches (16.80 meters)
  • Width at top of shaft:
    34 feet 5 ˝ inches (10.50 meters)
  • Thickness of monument walls at base:
    15 feet (4.57 meters)
  • Thickness of monument walls at observation level:
    18 inches (45.72 centimeters)
  • Total weight of monument:
    90,854 tons (82,421.4 metric tons)
  • Total number of blocks in monument:

The Monument's Materials

  • Exterior: White marble primarily from Baltimore, Maryland; a few blocks from Sheffield, Massachusetts
  • Interior: Granite from Maine

The Pyramidion and Capstone

  • Pyramidion weight:
    300 tons (272.16 metric tons)
  • Capstone weight:
    3300 pounds (1496.85 kilograms)
  • Capstone cuneiform keystone measures 5.16 feet from its base to the top (1.57 meters)
  • Each side of the capstone base is 3 feet long (.91 meters, 91.44 centimeters)
  • Width of aluminum tip: 5.6 inches on each of its four sides (14.22 centimeters)
  • Height of aluminum tip at base:
    8.9 inches (22.61 centimeters)
  • eight of aluminum tip on capstone:
    100 ounces (2834.95 grams)

The Foundation

  • Depth of foundation:
    36 feet 10 inches (11.23 meters)
  • Weight of foundation:
    36,912 tons (33.486 metric tons)
  • Area of foundation:
    16,002 square feet (1486.63 square meters)

The Interior

  • Number of memorial stones in stairwell: 193
  • Present elevator installed: 1998
  • Present elevator cab installed: 2001
  • Elevator ascent/descent time: 60 seconds/60 seconds
  • Number of steps in stairwell: 896

Construction of the Monument

  • Phase One (1848 - 1858): To the 152 foot level (46.33 meters), under the direction of Superintendent William Daugherty.
  • Phase Two (1878 - 1888): Work completed by the U.S. Army Corps of Engineers, commanded by Lt.Col. Thomas L. Casey.


When the Revolutionary War ended, no man in the United States commanded more respect than George Washington. Americans celebrated his ability to win the war despite limited supplies and inexperienced men, and they admired his decision to refuse a salary and accept only reimbursements for his expenses. Their regard increased further when it became known that he had rejected a proposal by some of his soldiers to make him king of the new country. It was not only what Washington did but the way he did it: Abigail Adams, wife of John Adams, described him as "polite with dignity, affable without familiarity, distant without haughtiness, grave without austerity, modest, wise, and good."

Washington retired to his plantation at Mount Vernon after the war, but he soon had to decide whether to return to public life. As it became clear that the Articles of Confederation had left the Federal Government too weak to levy taxes, regulate trade, or control its borders, men such as James Madison began calling for a convention that would strengthen its authority. Washington was reluctant to attend, as he had business affairs to manage at Mount Vernon. If he did not go to Philadelphia, however, he worried about his reputation and about the future of the country. He finally decided that, since "to see this nation so much the wish of my soul," he would serve as one of Virginia's representatives. The other delegates during the summer of 1787 chose him to preside over their deliberations, which ultimately produced the U.S. Constitution.

A key part of the Constitution was the development of the office of President. No one seemed more qualified to fill that position than Washington, and in 1789 began the first of his two terms. He used the nation's respect for him to develop respect for this new office, but he simultaneously tried to quiet fears that the President would become as powerful as the king the new country had fought against. He tried to create the kind of solid government he thought the nation needed, supporting a national bank, collecting taxes to pay for expenses, and strengthening the Army and Navy. Though many people wanted him to stay for a third term, in 1797 he again retired to Mount Vernon.

Washington died suddenly two years later. His death produced great sadness, and it restarted attempts to honor him. As early as 1783, the Continental Congress had resolved "That an equestrian statue of George Washington be erected at the place where the residence of Congress shall be established." The proposal called for engraving on the statue that explained that it had been erected "in honor of George Washington, the illustrious Commander-in-Chief of the Armies of the United States of American during the war which vindicated and secured their liberty, sovereignty, and liberty." Though it was easy to understand why nothing happened while the government lacked a permanent home, there was little progress even after Congress had settled on Washington, D.C. as the new capital.

Ten days after President Washington's death, a Congressional committee recommended a different type of monument. John Marshall, a Representative from Virginia who would soon become Chief Justice of the Supreme Court, proposed that a tomb be erected within the Capitol. But a lack of funds, disagreement over what type of memorial would best honor the country's first president, and the Washington family's reluctance to move his body prevented progress on any project. That inaction would prove typical in the coming years.

Progress towards a memorial finally began in 1833. That year, which marked the 100th anniversary of Washington's birth, a large group of concerned citizens formed the Washington National Monument Society. They began collecting donations, much in the way Blodgett had suggested. By the middle of the 1830s, they had raised over $28,000 and announced a competition for the design of the memorial.

On September 23 1835, the board of managers of the Society described their expectations:

It is proposed that the contemplated monument shall be like him in whose honor it is to be constructed, unparalleled in the world, and commensurate with the gratitude, liberality, and patriotism of the people by whom it is to be erected....[It] should blend stupendousness with elegance, and be of such magnitude and beauty as to be an object of pride to the American people, and of admiration to all who see it. Its material is intended to be wholly American, and to be of marble and granite brought from each state, that each state may participate in the glory of contributing material as well as in funds to its construction.

The Society held a competition for designs in 1836. The winner, architect Robert Mills, was well-qualified for the commission. In 1814 the citizens of Baltimore had chosen him to build a monument to Washington, and he had designed a tall Greek column surmounted by a statue of the President. Mills also knew the capital well, having just been chosen Architect of Public Buildings for Washington.

His design called for a 600' tall obelisk--an upright, four-sided pillar that tapers as it rises--with a nearly flat top. He surrounded the obelisk with a circular colonnade, the top of which would feature Washington standing in a chariot. Inside the colonnade would be statues of 30 prominent Revolutionary War heroes.

Yet criticism of Mills's design and its estimated price tag of more than $1 million caused the Society to hesitate. In 1848 its members decided to start building the obelisk and to leave the question of the colonnade for later. They believed that if they used the $87,000 they had already collected to start work, the appearance of the Monument would spur further donations that would allow them to complete the project.

About this time Congress donated 37 acres of land for the project. The spot L'Enfant had chosen was swampy and unstable, making it unsuitable for supporting what would be an enormously heavy structure. The new location was slightly south and east of the original but still offered many advantages. It "presents a beautiful view of the Potomac," wrote a member of the Society, and "is so elevated that the monument will be seen from all parts of the surrounding country." Because it is public land, he continued, "it is safe from any future obstruction of the view...[and it] would be in full view of Mount Vernon, where rests the ashes of the chief."

Excavation for the foundation of the Washington Monument began in the spring of 1848. The cornerstone was laid as part of an elaborate Fourth of July ceremony hosted by the Freemasons, a world-wide fraternal organization that Washington belonged to and that still exists today. Speeches that day showed that the country continued to revere Washington: one celebrant noted that "No more Washingtons shall come in our time...But his virtues are stamped on the heart of mankind. He who is great in the battlefield looks upward to the generalship of Washington. He who grows wise in counsel feels that he is imitating Washington. He who can resign power against the wishes of a people, has in his eye the bright example of Washington."

Construction continued until 1854, when donations ran out. The next year Congress voted to appropriate $200,000 to continue the work, but it changed its mind before the money could be spent. This reversal came because of a new policy the Society had adopted in 1849. It had agreed, after a request from some Alabamians, to encourage all states and territories to donate memorial stones that could be fitted into the interior walls. Members of the Society believed this practice would make citizens feel they had a part in building the Monument, and it would cut costs by limiting the amount of stone that had to be bought.

Blocks of marble, granite, and sandstone steadily appeared at the site. American Indian tribes, professional organizations, societies, businesses, and foreign nations donated stones that were four feet long, two feet high, and 12 to 18 inches thick. Many, however, carried inscriptions irrelevant to a memorial for George Washington. For example, one from the Templars of Honor and Temperance stated "We will not buy, sell, or use as a beverage, any spiritous or malt liquors, Wine, Cider, or any other Alcoholic Liquor."

It was just one memorial stone that started the events that stopped the Congressional appropriation and ultimately construction altogether. In the early 1850s, Pope Pius IX contributed a block of marble. In March 1854, members of the anti-Catholic, anti-immigrant American Party--better known as the "Know-Nothings"--stole the Pope's stone as a protest and supposedly threw it into the Potomac. Then, in order to make sure the Monument fit their definition of "American," the Know-Nothings conducted a fraudulent election so they could take over the entire Society.

Congress immediately rescinded its $200,000 contribution. The Know-Nothings retained control of the Society until 1858, adding 13 courses of the masonry to the Monument—all of which was of such poor quality that it was later removed. Unable to collect enough money to finish work, they increasingly lost public support. The Know-Nothings eventually gave up and returned all records to the original Society, but the stoppage in construction continued into, then after, the Civil War.

Interest in the Monument grew after the Civil War ended. Engineers studied the foundation several times to see whether it remained strong enough. In 1876, the Centennial of the Declaration of Independence, Congress agreed to appropriate another $200,000 to resume construction. The Monument, which had stood for nearly 20 years at less than one-third of its proposed height, now seemed ready for completion.

Before work could begin again, however, arguments about the most appropriate design resumed. Many people thought that a simple obelisk, one without the colonnade, would be too bare. Architect Mills was reputed to have said that omitting the colonnade would make the monument look like "a stalk of asparagus;" another critic said it offered " be proud of."

This attitude led people to submit alternative designs. Both the Washington National Monument Society and Congress held discussions about how the Monument should be finished. The society considered five new designs, concluding that the one by William Wetmore Story seemed "vastly superior in artistic taste and beauty." Congress deliberated over those five as well as Mills's original; while it was deciding, it ordered work on the obelisk to continue. Finally, the members of the Society agreed to abandon the colonnade and alter the obelisk so it conformed to classical Egyptian proportions.

Construction resumed in 1879 under the direction of Lieutenant Colonel Thomas L. Casey of the U.S. Army Corps of Engineers. Casey redesigned the foundation, strengthening it so it could support a structure that would ultimately weigh more than 40,000 tons. He then followed the society's orders and figured out what to do with the memorial stones that had accumulated. Though many people ridiculed them, Casey managed to install all 193 stones in the interior walls.

The building of the Monument proceeded quickly now that Congress had provided sufficient funding. In four years it was finally completed, with the 3,300-pound marble capstone being put in place on December 6, 1884, during another elaborate dedication ceremony. The completed monument stands 555' 5-1/8" tall, with exterior walls of white marble from Maryland and the interior ones lined with Maine granite. The cap of the momument is made from aluminum. At the time aluminum was a rare metal, and was more valuable than gold. At the time of its construction it was the tallest building in the world. Zoning laws in Washington, D.C. prohibit any building to be larger then the Washington Momument.

The Washington Monument drew enormous crowds even before it opened officially. During the six months that followed its dedication, 10,041 people climbed the 893 steps to the top. After the elevator that had been used to raise building materials was altered so that it could carry passengers, the number of visitors grew rapidly. As early as 1888 an average of 55,000 people a month went to the top, and today the Washington Monument has more than 800,000 visitors each year.

For ten hours in December of 1982, the Washington Monument was "held hostage" by a nuclear arms protestor, Norman Mayer claiming to have explosives in a van he drove up to the Monument's base. Eight tourists trapped in the Monument at the time the standoff began were set free, and the incident ended with U.S. Park Police opening fire on Mayer and killing him. The Monument was undamaged in the incident, and it turned out that Mayer never had explosives.