I've said it before, and I'll say it again. David McCullough is one of the very best authors of all times to me. I'm not great at history, but he has a way of telling a story that penetrates into my heart and brain and soul such that I actually learn something. Then I get excited and start researching and reading more and more about whatever topic grabbed me. This time being the Brooklyn Bridge. Very interesting and a great way to learn about it. I'm including some very interesting information I learned in my studies.
The Brooklyn Bridge is a hybrid cable-stayed/suspension bridge in New York City and is one of the oldest roadway bridges in the United States. Started in 1869 and completed fourteen years later in 1883, it connects the boroughs of Manhattan and Brooklyn, spanning the East River. It has a main span of 1,595.5 feet (486.3 m) and was the first steel-wire suspension bridge constructed. It was originally called the New York and Brooklyn Bridge and the East River Bridge, but it was later dubbed the Brooklyn Bridge, a name coming from an earlier January 25, 1867, letter to the editor of the Brooklyn Daily Eagle and formally so named by the city government in 1915. Since opening, it has become an icon of New York City and was designated a National Historic Landmark in 1964 and a National Historic Civil Engineering Landmark in 1972
DESIGN: Although the Brooklyn Bridge is technically a suspension bridge, it uses a hybrid cable-stayed/suspension bridge design. The towers are built of limestone, granite, and Rosendale cement. The limestone was quarried at the Clark Quarry in Essex County, New York. The granite blocks were quarried and shaped on Vinal haven Island, Maine, under a contract with the Bodwell Granite Company, and delivered from Maine to New York by schooner.
The bridge was built with numerous passageways and compartments in its anchorages. New York City rented out the large vaults under the bridge's Manhattan anchorage in order to fund the bridge. Opened in 1876, the vaults were used to store wine, as they were always at 60 °F (16 °C). This was called the "Blue Grotto" because of a shrine to the Virgin Mary next to an opening at the entrance. When New York magazine visited one of the cellars in 1978, it discovered on the wall a "fading inscription" reading: "Who loveth not wine, women and song, he remaineth a fool his whole life long."
CONSTRUCTION: The bridge was conceived by German immigrant John Augustus Roebling in 1852, who spent part of the next 15 years working to sell the idea. He had previously designed and constructed shorter suspension bridges, such as Roebling's Delaware Aqueduct in Lackawaxen, Pennsylvania, and the John A. Roebling Suspension Bridge between Cincinnati, Ohio, and Covington, Kentucky. While conducting surveys for the bridge project, Roebling sustained a crush injury to his foot when a ferry pinned it against a piling. After amputation of his crushed toes, he developed a tetanus infection that left him incapacitated and soon resulted in his death in 1869, not long after he had placed his 32-year-old son, Washington Roebling, in charge of the project.
In February 1867, the New York State Senate passed a bill that allowed the construction of a suspension bridge from Brooklyn to Manhattan. Two months later, the New York and Brooklyn Bridge Company was incorporated. The company was tasked with constructing what was then known as the New York and Brooklyn Bridge.
Construction of the Brooklyn Bridge began in 1869. The bridge's two towers were built by floating two caissons, giant upside-down boxes made of southern yellow pine, in the span of the East River, and then beginning to build the stone towers on top of them until they sank to the bottom of the river. Compressed air was pumped into the caissons, and workers entered the space to dig the sediment, until the caissons sank to the bedrock. The whole weight of the bridge still sits upon 15-foot-thick southern yellow-pine wood under the sediment.
Many workers became sick with the bends during this work. This condition was unknown at the time and was first called "caisson disease" by the project physician, Andrew Smith. Washington Roebling suffered a paralyzing injury as a result of "caisson disease" shortly after ground was broken for the Brooklyn tower foundation on January 3, 1870. Roebling's debilitating condition left him unable to physically supervise the construction firsthand.
As chief engineer, Roebling supervised the entire project from his apartment with a view of the work, designing and redesigning caissons and other equipment. He was aided by his wife, Emily Warren Roebling, who provided the critical written link between her husband and the engineers on site. Warren Roebling studied higher mathematics, calculations of catenary curves, strengths of materials, bridge specifications, and intricacies of cable construction. She spent the next 11 years helping to supervise the bridge's construction.
When iron probes underneath the caisson for the Manhattan tower found the bedrock to be even deeper than expected, Roebling halted construction due to the increased risk of decompression sickness. He later deemed the sandy subsoil overlying the bedrock 30 feet (9.1 m) below it to be firm enough to support the tower base, and construction continued.
The construction of the Brooklyn Bridge is detailed in The Great Bridge (1972), the book by David McCullough, and in Brooklyn Bridge (1981), the first PBS documentary film by Ken Burns. Burns drew heavily on McCullough's book for the film and used him as narrator. It is also described in Seven Wonders of the Industrial World, a BBC docudrama series with an accompanying book.
OPENING: The New York and Brooklyn Bridge was opened for use on May 24, 1883. Thousands of people attended the opening ceremony, and many ships were present in the East Bay for the occasion. President Chester A. Arthur and Mayor Franklin Edson crossed the bridge to celebratory cannon fire and were greeted by Brooklyn Mayor Seth Low when they reached the Brooklyn-side tower. Arthur shook hands with Washington Roebling at the latter's home, after the ceremony. Roebling was unable to attend the ceremony (and in fact rarely visited the site again), but held a celebratory banquet at his house on the day of the bridge opening. Further festivity included the performance of a band, gunfire from ships, and a fireworks display. Since the New York and Brooklyn Bridge was the only one across the East River at that time, it was also called East River Bridge.
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. Emily Warren Roebling was the first to cross the bridge. The bridge's main span over the East River is 1,595 feet 6 inches (486.3 m). The bridge cost US$15.5 million in 1883 dollars (about US$393,964,000 in today's dollars) to build, and an estimated 27 men died during its construction.
On May 30, 1883, six days after the opening, a woman falling down the stairway caused a stampede, which was responsible for at least twelve people being crushed and killed. On May 17, 1884, P. T. Barnum helped to squelch doubts about the bridge's stability—while publicizing his famous circus—when one of his most famous attractions, Jumbo, led a parade of 21 elephants over the Brooklyn Bridge.
At the time it opened, and for several years, it was the longest suspension bridge in the world—50% longer than any previously built—and it has become a treasured landmark. Since the 1980s, it has been floodlit at night to highlight its architectural features. The architectural style is neo-Gothic, with characteristic pointed arches above the passageways through the stone towers. The paint scheme of the bridge is "Brooklyn Bridge Tan" and "Silver", although it has been argued that the original paint was "Rawlins Red".
At the time the bridge was built, engineers had not discovered the aerodynamics of bridge construction. Bridges were not tested in wind tunnels until the 1950s, well after the collapse of the original Tacoma Narrows Bridge, known as 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 or 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. 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.
LATER YEARS: In 1915, the city government officially named the structure the "Brooklyn Bridge", a name first mentioned in print in a January 1867 letter to the editor of the Brooklyn Daily Eagle.
During the Cold War, a fallout shelter was constructed beneath the Manhattan approach. The abandoned space in one of the masonry arches still contained the emergency survival supplies for a potential nuclear attack by the Soviet Union when rediscovered in 2006 during a routine inspection.
In 1964, the bridge was designated a National Historic Landmark, having become an icon of New York City since its opening, and a National Historic Civil Engineering Landmark in 1972.
The centennial celebrations on May 24, 1983, saw a cavalcade of cars crossing the bridge, led by President Ronald Reagan. A flotilla of ships visited the harbor, parades were held, and in the evening the sky over the bridge was illuminated by Grucci Fireworks The Brooklyn Museum exhibited a selection of the original drawings made for the bridge's construction, some by Washington Roebling. Media coverage of the centennial was declared "the public relations triumph of 1983" by Inc.
Beginning on May 22, 2008, five days of festivities celebrated the 125th anniversary of the bridge's opening. The events kicked off with a live performance of the Brooklyn Philharmonic in Empire–Fulton Ferry State Park, followed by special lighting of the bridge's towers and a fireworks display. Other events held during the 125th anniversary celebrations, which coincided with the Memorial Day weekend, included a film series, historical walking tours, information tents, a series of lectures and readings, a bicycle tour of Brooklyn, a miniature golf course featuring Brooklyn icons, and other musical and dance performances. Just before the anniversary celebrations, artist Paul St George installed the Telectroscope, a video link between New York City and London, on the Brooklyn side of the bridge. The installation lasted for a few weeks and permitted viewers in New York City to see people looking into a matching telectroscope near London's Tower Bridge. A newly renovated pedestrian connection to the DUMBO neighborhood was also unveiled before the anniversary celebrations.
RENOVATION: After the 2007 collapse of the I-35W highway bridge in Minneapolis, public attention focused on the condition of bridges across the U.S. The New York Times reported that the Brooklyn Bridge approach ramps received a rating of "poor" during its inspection in 2007. According to a NYC Department of Transportation spokesman, the poor rating did not indicate a dangerous state but rather implied it required renovation. A US$508 million project (equivalent to US$570 million in 2017) to renovate the approaches began in 2010, with the full bridge renovation beginning in early 2011 which was originally scheduled to run until 2014, however the project did not finish until April 2015.
Work included widening two approach ramps from one to two lanes by re-striping a new prefabricated ramp; raising clearance over the eastbound Interstate 278 at York Street, on the double-deck Brooklyn-Queens Expressway; seismic retrofitting; replacement of rusted railings and safety barriers; and road deck resurfacing. The nature of the work necessitated detours for four years.
In August 2016, after the renovation of the bridge had already been completed, the New York City Department of Transportation announced that it would conduct a seven-month, US $370,000 study to verify if the bridge could support a heavier upper deck that consisted of an expanded bicycle and pedestrian path. As of 2016, about 10,000 pedestrians and 3,500 bikers use the pathway on an average weekday. Work on the pedestrian entrance on the Brooklyn side was underway by 2017.
Great Book - HIGHLY RECOMMEND.