The Park Authority of New York and New Jersey had planed to construct a new bridge across to Hudson because of raising demand in transportation. New York State Governors canceled first proposal for the Tappan Zee Bridge. Some of reasons caused to postpone the date and change the place of the construction. So, the construction of the Tappan Zee Bridge started in 1952.
Tappan Zee Bridge was designed as a cantilever and largest bridge in the United States of New York. The bridge connects South Nyack in Rockland County with Tarrytown in Westchester County in the Lower Hudson Valley. Total length of the bridge is 4881m and also cantilever span, is 369 m, carries seven lanes for vehicles and the center lane, which can be changed between different bounds by movable barrier. The bridge opened to traffic in 1955. New York State Governor signed a bill on 1956.
Engineers involved in this project said that the bridge was built on the cheap in 1950’s. Its cost was less than $81 million because it was applied as a truss design. It is cheaper than arch at its main span that is originally designed. These changes of the design caused to more risk in the infrastructure and weakness of the bridge.
In 2009, Some problems about infrastructure arisen in the United States. It has been called “one of the most decrepit and potentially dangerous bridge”[1] . The engineers reported that the claims about the bridge are true. The bridge did not planed with long-term durability. So, this situation cause new plans to repair bridge or construct a new bridge or tunnel.
Metropolitan Transportation Authority is studying for including the rail line on the replacing bridge or putting the future dates. If it builds, the rail line will connect with the other lin...
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...ect. The goal of the commitment is minimizing discharged of sediment into river, following water quality parameters and reduction of the detrimental effects. Also, actions in the project may affect the various types of fish. Therefore, constructors need to have permitted for in water construction activities in the Hudson River. Construction Company did not have so much information about environmental impact of the construction of the existing bridge. Nevertheless, best management of the water quality minimizes the impacts to Hudson River.
In conclusion, “New York State Thruway Authority wants to provide for efficient, safe quality, timely completion of the construction project to replace Tappan Zee Bridge”[2]. Despite of the many environmental impacts of the project, there are many advantages for the transportation, safety, and welfare of the public.
How exactly did the Mackinac Bridge start? It started back around 1884 when they started thinking about it. The Lansing Republic newspaper , dated February 5th 1884, reprinted a story from the Grand Traverse Herald pointing out that the experiment to provide all year service across the straights by boat had failed, and if that a great east west route were ever to be established through Michigan a bridge or tunnel would have be required. They considered both as possible, the only question in their mind was cost (History of the Bridge 1).
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.
The building of a new bridge will be done. The question is when. A new bridge is of major importance to the city of Buffalo. It will bring many positives, and barely any negatives. Personally, I have always just thought of a bridge as a way to get from point A to point B. However, the idea of new Peace Bridge's benefits has opened my eyes. The new Peace Bridge may result in a modern day Erie Canal.
Following the American Civil War, the use of railroads for trade was booming. The Detroit, Michigan and Windsor Ontario border, separated by the Detroit River, was a center for railroads at the time with the Michigan Central and Great Western railroads operating on their respective sides of the border. In the early 20th century, the railroads used ferries to transport shipments across the river. As production and population grew, so did the shipments of goods, specifically grain. An increasing delay in the supply and demand of agricultural products was hurting the economy for both farmers and consumers. In 1909, a tunnel was constructed to transport trains under the Detroit River but the need for a bridge with mass transportation abilities was still needed. This led to the construction of the Ambassador Bridge in 1929, funded by financier Joseph Bower and engineered and constructed by the heralded Pittsburgh McClintic-Marshall Company. No one could have ever foreseen the societal and economical impact the decision to engineer a bridge would have.
The Golden Gate bridge, standing as an icon of roadway innovations, took multiple engineers years to design and complete. They could not just simply build an ordinary bridge. They had to take into consideration the physics behind it, as well as, what kind of effect the environment would have upon the bridge. The bridge sits along one of the most active fault lines in the world, so engineers had to make sure their bridge could withstand a little movement. Today the Golden Gate bridge still stands tried and true, as does many other innovations that 20th century engineers came up with.
This essay will encounter The Long Island Rail Road first years making. The rail road was developed because the rail roads planners wanted to expand a way to get to Boston. In order for this view to happen, the service needed to make rail-road through Long Island, so they made the LIRR with the help of legislature supplying the money with 1,500,000$. This caused for New York or Brooklyn to be linked to Boston. Even though the money was good start for making the rail road, it was still very difficult to make so they to find ways to make it more efficient.
Since it would be easier and less expensive to build a bridge rather than a tunnel, a bridge was initially thought to be a better solution. However, to construct a bridge over the Hudson River it would require a minimum clearance of 200 ft. for ships to travel to and from Hudson River ports. Since the Manhattan side of the Hudson did not meet the 200-foot elevation requirement needed for a bridge, new and expensive apparatuses would have to be built on the New York side. Also, a bridge would be affected by poor weather conditions more than a tunnel. In 1913, the joint coalition finally decided to construct a tunnel.2
According to Suspension bridges: Concepts and various innovative techniques of structural evaluation, “During the past 200 years, suspension bridges have been at the forefront in all aspects of structural engineering” (“Suspension”). This statement shows that suspension bridges have been used for over 200 years, and that people are still using them today because they are structurally better bridges. This paper shows four arguments on the advantages of suspension bridges, and why you should use one when building a bridge. When deciding on building a suspension bridge, it has many advantages such as; its lightness, ability to span over a long distance, easy construction, cost effective, easy to maintain, less risk
On May 24, 1854, construction began of the Victoria Bridge. This was a difficult task for the workers given the size of the bridge (“almost two miles in length from shore to shore” ) was the largest construction project during this period of time. Moreover, the construction of the bridge did not cease during the winter months. Therefore, many of the workers on the bridge would continue even while the St-Lawrence River froze underneath their
The 14-year construction of this urban landmark that stretched across the East River was completed in May of 1883. This was not only a bridge; it stood for many significant symbols. During this time period, the industrial aspects of things were at its peak and this represented the strength of the industry. Also it symbolized the use of immigrant workers and how much time and effort they put into making this bridge. Twenty seven men died while creating this bridge and that is something that most people forget when looking at the bridge, people risked there lives while giving a society that people needed. Not only that but it took tons and tons of steel and iron in order to complete this bridge and it was part of the steel and iron boom. This landmark led to the rise o...
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...
In 1883 Brooklyn Bridge has opened and it was the longest suspension bridge at that time.It connects Manhattan and Brooklyn by spanning the East river. There is no entry fees for visiting Brooklyn bridge. You can take a bus or train to reach there.
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
The Central Artery Tunnel Project, more commonly known as the Big Dig, is said to be the largest, most complex and technologically challenging highway project in American history. It is the culmination of decades of planning and forethought and is hoped to alleviate the traffic congestion that has plagued the Boston area since the invention of the automobile. The project incorporates a major underground highway system, a revolutionary cable-stayed bridge, and a series of impressive tunnel crossings, each a considerable feat on their own, all constructed in the midst of a bustling city.