On July 4th, 1977 one of America's first looping roller coaster and the first looping coaster on the east coast, The SooperDooperLooper was opened. The first steel inverted looping coaster in Pennsylvania. In the early 80s, the Cyclops, Pirate, Wave Swinger, Conestoga, and Rimmer Raffer were all built. The Canyon River Rapids were built in 1987, the Flying Falcon in 1990, and the Sidewinder roller coaster in 1991. Later, in may of 1994 the world's largest water plunge ride Tidal Force was built.
1.0 Introduction On August 1, 2007 at about 6:05 p.m., interstate highway bridge I-35W, which was an eight lane, 1 907 foot-long bridge, collapsed over the Mississippi River in Minneapolis, Minnesota. A total of 1 000 feet of the bridge had collapsed and fallen 108 feet into the Mississippi River triggering 111 vehicles to fall, causing 13 lives to be lost and another 145 injured. The I-35W Bridge was designed as a deck-truss bridge in 1964 and opened in 1967 with six traffic lanes and two auxiliary lanes. The bridge had undergone two major upgrades, with one in 1977 and the other in 1998, adding another two inches of concrete deck, while also widening the bridge to eight lanes. On the day of the collapse, construction was underway on the deck-truss portion of the bridge and as a result, four of the eight lanes were closed due to parked machinery and paving materials in the way.
In having this change in design Flatiron Construction, VTrans/NYDOT, Candraft Engineering agreed to the change and allowed for a wider roadway, which was wanted by the community members/drivers. 4. The Lake Champlain bridge project was a Bid-Build delivery system method, which allowed the design team to look out for the interests of the owners, using a cost effective method that was the least cost approach to the low bidders to keep the project in estimated budget of $77 million, even though there was $5,388,000 in change orders. This project did have subcontractors receiving prevailing wage since this was a state/ federal funded project. There was a large dispute over contractors threaten to halt the bridge completion since they are performing “at will” activities and entitled to these benefits that come from union benefits.
Foreign Author#2 (article) (Jones, 2012) The longest pontoon bridge was constructed across Lake Washington between Seattle and Medina, Washington, in 1963. Since then, the population has grown rapidly and the number of trips has increased exponentially. To accommodate the traffic and ease congestion, the longest pontoon bridge will be replaced by even a longer one. The new bridge will be 7,710 ft long and 116 ft wide and will have new safety mechanism, pedestrian lane, cycling lane, and six traffic lanes. Local Author#1: (article) (Evora, 2013) Once the development of the extension (bridge) is acknowledged, it will
The SR520 Bridge is a pontoon bridge in the U.S. state of Washington. The bridge is 4750 meters long and has a 2,310 meters section. It was the longest bridge until its replacement exceeds it. The new SR520 Bridge’s renovation and maintenance plan will help the researcher develop knowledge in bridge renovation and
The Golden Gate Bridge is a suspension bridge, which means that the bridge is mainly supported by cables (129 000 kilometres of wire to be exact) stretched between vertical towers. The bridge took around 4 years to complete while construction started in 1933, and it was opened to pedestrians on 27 May 1937. For the time, the bridge was a very big engineering achievement, with many hurdles that had to be passed to complete. Figure 2.1 shows a picture of the Golden Gate Bridge, an icon of San Francisco, California, USA. (Figure 2.1) 2.