Tuesday, October 29, 2013

The Brooklyn Bridge

To this day, the Brooklyn Bridge serves to connect Brooklyn, which was third largest city in the world in 1860, and New York. The idea of building the bridge came from a German Engineer named John Roebling. John was inspired to build the Brooklyn Bridge when he experienced a long and cold ferry ride from New York to Brooklyn. John realized the inconvenience the bridge served for many people especially since at the time, around 40% of wage earners in Brooklyn worked in New York. After experiencing the miserable a harsh conditions that many workers have to experience to get to cross the East River, he thought that he should propose a convenient bridge that connects the two major cities. John submitted the bridge ideas in 1857.  

John Roebling though later died while trying to heal from a ferryboat accident. His son, Washington Augustus Roebling, took over the project. With Washington taking over project, construction of the bridge began in 1870.

One of the hardships that occurred during the construction was the emergence of caisson disease.
Workers worked in 2 massive watertight chambers, deep into the river's floor which were called caissons.
Pressurized air was pumped into the caisson to allow underwater construction of the bridge's foundation. This created a low-quality circulation of air.
Often if people worked in the caisson for a period of time, they had a high chance of being infected with caisson disease.
One man out of three quit every week
Washington Roebling also got infected with this disease
           It was reported that Washington became paralyzed from this disease and the nervous condition from overwork and anxiety. Washington's wife, Emily Roebling, became an important asset to the bridge; she delivered Washington's instruction to the workers and took charge of the construction while Washington could only watch the construction from his house in Brooklyn Heights.
Picture of the interior of a caisson during the Brooklyn Bridge construction
Picture from The Brooklyn Bridge They Said It Couldn't Be Built  by Judith St. George
http://images.fineartamerica.com/images-medium-large/1-washington-roebling-granger.jpg
Picture of Washington Roebling viewing the Brooklyn Bridge construction from his home in Brooklyn Heights
Picture from Fine Arts America

Around 20 men died in the 14-year process of building the bridge.
With the dedication of the workers, though, the bridge opened as the Great East River Bridge on May 24, 1883 having 150300 people walking onto it during opening day.

As a result, the Brooklyn Bridge not only serves revolutionary landmark that connects two major cities, but is recognized to "an embodiment of the scientific knowledge of physical laws." (Cadbury 114)
            It was the first steel-cable suspension bridge in the world  
            It was the first bridge to be coated with metal zinc to protect it from rust
            The two 276.5-ft tall towers of the bridge were taller than any NYC building at the time
            It was the world's largest suspension bridge at the time
            Based from the astonishing achievements in the physical outcome, the bridge is claimed to be the "eighth wonder of the world"

With its convenience and amazing physical elements, it is no wonder why people fell in love the bridge



Picture of the Brooklyn Bridge and its surroundings in during the late 1800s
Picture from Brooklyn Museum


Fun Fact: Some people were skeptical about the sturdiness of the bridge since they have never seen such application of physics be done. To prove that the bridge was stable, circus owner P. T. Barnum led 21 elephants over the Brooklyn Bridge on May 17, 1884.
           

           
  

10 comments:

  1. It is impressive that this bridge was even able to be built. The building of the Brooklyn Bridge shows how dedication and hard work can really pay off. John Roebling was clearly an engineer way ahead of his time. It is surprising that only 20 men died in the 14 year process of the bridge. If caisson disease did not exist, how do you think the construction of the bridge would have been different?

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  2. Well, it's hard to say with any certainty - but Washington Roebling probably would have been healthy for the entire construction, and his wife would not have had the opportunity to contribute to the bridge project.

    I also find it interesting how this was truly "a family affair", as three Roeblings led the project at different times. You don't see that so much anymore when it comes to major engineering or construction projects.

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  3. Clement said today that the bridge was "a revolutionary landmark" - and of course, the word "revolutionary" caught my attention, since the Revolution is out main focus yet the bridge was not part of that history. In what ways was the bridge revolutionary?

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  4. I find it fascinating how this bridge was constructed and put together. Before hearing your presentation today, I was unaware that watertight chambers were used to build the foundation of the Bridge. Although everything worked out well when the bridge was completed, I wonder if there was another way they could have built this bridge to prevent caisson disease and the constant quitting of construction workers. If this bridge had not been built, how do you think Brooklyn and New York would differ today?

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    1. Despite maintaining different identities, Brooklyn and New York share a strong relationship due to the ease of access via the Brooklyn Bridge. Without the Brooklyn Bridge, commuting to and from New York would be many times more difficult. Ferries would have to be used, and they are far less effective than a bridge. Economy between the two distinct locations would suffer greatly due to the transportation issues. The creation of the Brooklyn Bridge was a necessity despite the losses endured.

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    2. Kendall raises a good point about Manhattan and Brooklyn having different identities. What are these different identities?

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    3. I think it is also important to point out that once this bridge was built, Brooklyn and New York were now in some way connected. Branching off what Kendall said, New York and Brooklyn were allowed to do business with each other much easier and faster. The Brooklyn Bridge is more than just a cultural icon. At the time, it was a symbol of optimism for the people of New York and the United States. The whole construction of it really proved that the U.S was capable of making something so great on their own.

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    4. Olivia is right about the optimism that the bridge brought to the people in Brooklyn and New York. The bridge did make going to New York from Brooklyn and vice versa much simpler than having the workers take the inconvenient ferries. Around 40% of wage earners in Brooklyn worked in New York. With Brooklyn, being the 3rd most largest city, connected to New York with this bridge, in a way, industrialization in New York becomes immense. New York became such a powerful industrial city compared all the cities in the world.

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  5. What I find really interesting is the resilience and determination of the Roebling family and all the other workers. The boss of the project, John Roebling, died but his son, Washington, picks up right where John left off. And when Washington gets the caisson disease his wife helps Washington immensely and Wahington does all he can while extremely ill to contribute. Overall, the Roeblings and many others (everyone else that worked and especially the others that got the disease or died) dedicated their lives to this project and pushed along for 14 years no matter the consequences.

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  6. Good question Zach -- any takers?

    Jack, you make me think that this project was so immense and dangerous that it took two generations of Roeblings to build it.

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