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Bridges impact on society
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American infrastructure is aging, fast. Roads and bridges are failing, entire sections of the US and Canada have had lost power, effecting approximately 55,000,000 people, due to lack of tree maintenance, and many of the sewer and water lines in cities like New York are over 100 years old (Markowitz; Minkel). According to the American Society of Civil Engineers (ASCE) in 2013, the United States infrastructure network earns a grade of a D+, and requires a $3.6 trillion dollar investment by the year 2020 to make the grade (American Society of Civil Engineers). Infrastructure is a key part of modern life; we use it every day without thinking about it, and because of this, it goes neglected. Most people only think about the road that they are driving on when they hit a pothole; infrastructure is invisible, until it breaks. The fact that infrastructure is largely invisible means it gets neglected and abused, it is not an issue most people think about, politicians do not win by talking about it, and any solution in the near term generally requires raising taxes, making the subject more unpopular for the citizenship at large. The longer we ignore our infrastructure problems, the more it will cost to fix, and the more likely it is for a disaster to happen. One of …show more content…
He details a long history of ill repair and modifications with the latest modification to the bridge, before it’s collapse taking place in 1997, but still leaving it inadequate to support it’s ever increasing load. From 1967 to 1997 the daily traffic load on the bridge nearly tripled, from 60,000 vehicles per day, to approximately 160,000 per day at the time of it’s collapse. The increased traffic load, along with the increased weight from subsequent modifications, outpaced the bridge’s structural design (LePatner,
When construction takes place, it is usually way before it is actually needed. Of course it is helping prevent dangerous and fatal occurrences but for the most part some of these changes can wait. Instead of spending so much money on our transportation category we should be putting more into education. “The money that the Federal Budget gives for education covers college aid loans, special education programs, free lunch to students in need, anti-discrimination efforts, research, and special programs” (Document D). Education is one of the most important things a person can have. ”
Steven Hermosillo Professor Wallace Fire Tech 105 15 November 2015 Silver Bridge Collapse According to Wikipedia, Forty-six people were killed in the silver-bridge collapse and another nine people were injured. “The Silver Bridge was an eye-bar-chain suspension bridge built in 1928 and named for the color of its aluminum paint. The bridge connected Point Pleasant, West Virginia, and Gallipolis, Ohio, over the Ohio River” (Wikipedia). This was a highly used bridge serving thousands of cars a day before the collapse.
An Occurrence at Owl Creek Bridge is split into three sections. In the first section, Bierce describes in detail the situation, a youn...
The reasons for the collapse are to be found in the acts and omissions of those entrusted with building a bridge of a new and highly sophisticated design.
Following the collapse of the I-35 Bridge, other bridges in the country, with similar construction designs, were scrutinized. According to federal statistics, more than 70,000 of the 607,363 or roughly 12 percent of the bridges in the United States are classified as “structurally deficient.”
The Victoria Bridge, constructed in the mid-19th-Century in British North America, is a famous Canadian landmark that set the stage for the beginning of the industrialization phase of Canada and more specifically, Montreal. It would eventually “play a vital role in the growth of the city and the country”.
10. When the government invests in building roads, ports, and a reliable power grid, it is
The first and most challenging problem associated with building the Mackinac Bridge arrived long before the bridge was even designed. Financing such an enormous project was no easy feat. In 1928, the idea of connecting the upper and lower peninsulas was proposed to Congress for the first time (Brown 4). At the time, the suspected bridge project was very much under government scrutiny and control. In fact, the initial boost in interest in pursuing the construction of a bridge came about due to the depression. The Public Works Administration (PWA) had been created under President Franklin D. Roosevelt’s New Deal economic plan which would fund certain construction projects with th...
Since the advancement of the technology has taken place, the infrastructure should implies more technology to build up a more secure and also environment friendly compound for the citizen so that in the near future, these people will increases the work productivity to support the economic growth in their working place which this will help them to expand the financial status of the country.
The Tacoma Narrows Bridge is perhaps the most notorious failure in the world of engineering. It collapsed on November 7, 1940 just months after its opening on July 1, 1940. It was designed by Leon Moisseiff and at its time it was the third largest suspension bridge in the world with a center span of over half a mile long. The bridge was very narrow and sleek giving it a look of grace, but this design made it very flexible in the wind. Nicknamed the "Galloping Gertie," because of its undulating behavior, the Tacoma Narrows Bridge drew the attention of motorists seeking a cheap thrill. Drivers felt that they were driving on a roller coaster, as they would disappear from sight in the trough of the wave. On the last day of the bridge's existence it gave fair warning that its destruction was eminent. Not only did it oscillate up and down, but twisted side to side in a cork screw motion. After hours of this violent motion with wind speeds reaching forty and fifty miles per hour, the bridge collapsed. With such a catastrophic failure, many people ask why such an apparently well thought out plan could have failed so badly?(This rhetorical question clearly sets up a position of inquiry-which iniates all research.) The reason for the collapse of the Tacoma Narrows Bridge is still controversial, but three theories reveal the basis of an engineering explanation. (Jason then directly asserts what he found to be a possible answer to his question.)
In her essay,”Importance of the Golden Gate Bridge,” Stephanie Stiavetti suggest that “It maintained this point of pride for nearly 25 years until the Verrazano- Narrows Bridge was built in New York in 1964. Today, this historic San Francisco landmark holds its place as the second largest suspension bridge in the country, behind Verrazano Narrows.” Back then, experts thought that it would be impossible to build a bridge across the tides and currents in that area because strong currents and tides would make construction extremely difficult and dangerous. The water is over 500 feet deep in the center of the channel, and along with the area's strong winds and thick fog, the idea of building a bridge there seemed nearly impossible. Despite all of the problems of building a bridge across the Golden Gate, Joseph Strauss was named as lead engineer for the project. Construction began January 5, 1933, and in the end cost more than $35 million to
...itionally, the government as part of the rebuilding efforts that have been taking place should invest in infrastructure, speeding up implementation of plans for a regional airport, highways, and harbors that would offer much needed benefits to fishermen working along the southern coast Arunatilake, et al., 2014, p. 29).
Bridge routines and in-depth inspections were put into place after the collapse to prevent another disaster (Silver Bridge Collapse). Engineers are now more informed about corrosion and how it affects the materials bridges are made out of. With increased knowledge, the quality of structures have improved and can now withstand all forms of corrosion and stress (Silver Bridge Collapse). The Silver Bridge was never rebuilt due to the stress and devastation to the
Restoring and Improving Urban Infrastructure - Engineering Challenges. " EngineeringChallenges.org -. National Academy of Science, 2012. Web. The Web.