Construction began January 3, 1870. The Brooklyn Bridge was completed thirteen years later and was opened for use on May 24, 1883. On that first day, a total of 1,800 vehicles and 150,300 people crossed what was then the only land passage between Manhattan and Brooklyn. The bridge's main span over the East River is 1,595 feet 6 inches (486.3 m). The bridge cost $15.5 million to build and approximately 27 people died during its construction.
One week after the opening, on May 30, a rumor that the Bridge was going to collapse caused a stampede which crushed and killed twelve people. P. T. Barnum demonstrated the bridges strength, though, a year after the bridge's opening by leading Jumbo The Elephant across the bridge.
At the time it opened, it was the longest suspension bridge in the world — 50% longer than any previously built — and it has become a treasured landmark. Additionally, for several years the towers were the tallest structures in the Western Hemisphere. Since the 1980s, it has been floodlit at night to highlight its architectural features. The towers are built of limestone, granite, and Rosendale cement. Their architectural style is Gothic, with characteristic pointed arches above the passageways through the stone towers.
The bridge was designed by German-born John Augustus Roebling in Trenton, New Jersey. Roebling had earlier designed and constructed other suspension bridges, such as Roebling's Delaware Aqueduct in Lackawaxen, Pennsylvania, the John A. Roebling Suspension Bridge in Cincinnati, Ohio and the Waco Suspension Bridge in Waco, Texas, that served as the engineering prototypes for the final design.
During surveying for the East River Bridge project, Roebling's foot was badly injured by a ferry, pinning it against a pylon; within a few weeks, he died of tetanus. His son, Washington, succeeded him, but in 1872 was stricken with caisson disease (decompression sickness, commonly known as "the bends"), due to working in compressed air in caissons. The occurrence of the disease in the caisson workers caused him to halt construction of the Manhattan side of the tower 30 feet (10 m) short of bedrock when soil tests underneath the caisson found bedrock to be even deeper than expected. Today, the Manhattan tower rests only on sand. Washington's wife, Emily Warren Roebling, became his aide, learning engineering and communicating his wishes to the on-site assistants. When the bridge opened, she was the first person to cross it. Washington Roebling rarely visited the site again.
At the time the bridge was built, the aerodynamics of bridge building had not been worked out. Bridges were not tested in wind tunnels until the 1950s — well after the collapse of the original Tacoma Narrows Bridge (Galloping Gertie) in 1940. It is therefore fortunate that the open truss structure supporting the deck is by its nature less subject to aerodynamic problems. Roebling designed a bridge and truss system that was six times as strong as he thought it needed to be. Because of this, the Brooklyn Bridge is still standing when many of the bridges built around the same time have vanished into history and been replaced. This is also in spite of the substitution of inferior quality wire in the cabling supplied by the contractor J. Lloyd Haigh — by the time it was discovered, it was too late to replace the cabling that had already been constructed. Roebling determined that the poorer wire would leave the bridge four rather than six times as strong as necessary, so it was eventually allowed to stand, with the addition of 250 cables. Diagonal cables were installed from the towers to the deck, intended to stiffen the bridge. They turned out to be unnecessary, but were kept for their distinctive beauty.
After the collapse of the I-35W highway bridge in the city of Minneapolis, increased public attention has been brought to bear on the condition of bridges across the US, and it has been reported that the Brooklyn Bridge approach ramps received a rating of "poor" at its last inspection . According to a NYC Department of Transportation spokesman, "The poor rating it received does not mean it is unsafe. Poor means there are some components that have to be rehabilitated.” A $725 million project to replace the approaches and repaint the bridge is scheduled to begin in 2009.
The construction of the Brooklyn Bridge is detailed in the 1972 book The Great Bridge by David McCullough and Brooklyn Bridge (1980), the first PBS documentary film ever made by Ken Burns. Burns drew heavily on McCullough's book for the film and used him as narrator.
Following the 1965, 1977 and 2003 Blackouts and most famously after the September 11, 2001 attacks on the World Trade Center, the bridge was used by people in Manhattan to leave the city after subway service was suspended. The massive numbers of people on the bridge could not have been anticipated by the original designer, yet John Roebling designed it with three separate systems managing even unanticipated structural stresses. The bridge has a suspension system, a diagonal stay system, and a stiffening truss. "Roebling himself famously said if anything happens to one of [his] systems, 'The bridge may sag, but it will not fall.' The movement of large numbers of people on a bridge creates pedestrian oscillations or "sway" as the crowd lifts one foot after another, some falling inevitably in synchronized cadences. The natural sway motion of people walking causes small sideways oscillations in a bridge, which in turn cause people on the bridge to sway in step, increasing the amplitude of the bridge oscillations and continually reinforcing the effect. This high-density traffic causes a bridge to appear to move erratically or "to wobble" as happened at opening of the London Millennium Footbridge in 2000.
References to "selling the Brooklyn Bridge" abound in American culture, sometimes as examples of rural gullibility but more often in connection with an idea that strains credulity. For example, "If you believe that, I have a wonderful bargain for you…" References are often nowadays more oblique, such as "I could sell you some lovely riverside property in Brooklyn ... ". George C. Parker and William McCloundy are two early 20th-century con-men who had (allegedly) successfully perpetrated this scam on unwitting tourists. 
In his second book The Bridge, Hart Crane begins with a poem entitled "Poem: To Brooklyn Bridge." The bridge was a source of inspiration for Crane and he owned different apartments specifically to have different views of the bridge.
In the 1972 film, The Hot Rock, the Brooklyn Bridge was shown as a visual icon of New York City. The partially-finished World Trade Center was also shown. Original research|date=August 2008}}