Outside of China, the United States is the most-dammed country on the planet. Counting only dams taller than fifty feet high, the U.S. has some 5,000 dams that range from giant hydroelectric dams such as the Grand Coulee in Washington State to flood control dams in the southeast and dams that provide water for irrigation in California. Overall the United States has as many as 2.5 million dams of one sort or another. The design and construction of many of these dams took place between 1930 and 1975. This 45 years period is known as the golden age of dam building, starting with the construction of the Hoover Dam beginning in 1931. By the 1970s the golden age of dam construction began to come to an end with increased concerns of the impacts of dams on their surroundings. To better understand this time period I will look at the construction of Hoover Dam during the 1930’s followed by an examination many of today’s arguments for and against dams [i].
The need for a dam on the Colorado River was known decades before construction actually began due to the numerous destructive floods of the Colorado River. A need for water and electricity was also discovered to help with the development of the West. But there were many factors standing in the way such a large-scale construction project. Finally, in 1927 a bill detailing the project passed in Congress. Many construction companies began to look over the proposals but most agreed that the plan was too ambitious, too difficult, the project site was too unforgiving, and that the technology was not available to build a dam of that size[ii].
Hoover Dam is located in the Black Canyon, on the Colorado River, about thirty miles southeast of Las V...
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...onomic impacts of the dam, the impacts of removal, and the economic costs.
Notes
[i] Davy, Emma. “Robofish” Current Science March 2, 2001: 10.
[ii] http://www.hooverdam.usbr.gov/
[iii] http://xroads.virginia.edu/~MA98/haven/hoover/front2.html
[iv] http://www.pbs.org/wgbh/amex/hoover/
5 Robbins, Elaine. “Damning Dams.” E Jan 1999: 14.
6 Franklin, Chris. “Let the Colorado River run free.” Earth Island Journal Spring 1997: 23.
7 http://www/irn.org/
8 “Not so fast; Eliminating dams; Why dams can be green.” The Economist March 3, 2001: 4.
9 Wade, Beth. “Bringing down the dams.” American City and County June 1999: 20.
10 “Knocking down dams – A good year for alewives.” The Economist July 29, 2000: 32.
11 http://www.saveourdams.com/
12 McMahon, Richard Jr. “Let’s not damn the dams.” The Business Journal January 28, 2000: 47.
The Elitsac Manufacturing Company Dam affects 14.08 miles of Wolf Creek (Fish, n.d.). The original purpose of this dam is not documented within the state’s dam inventory, and it is also no longer in service (Dam, n.d.). Another dam on Wolf Creek is Hopkins Mill Dam, which also is out of service. The Hopkins Mill Dam was originally built to generate hydroelectric power and affects 46.58 miles of river (Fish, n.d.).
In December 1936 the United States Department of the Interior authorized the Lower Colorado River Authority to construct a low dam at the site of an old crossing on the river known as Marshall Ford. Marshall Ford Dam was completed in 1941 through the collaboration of the United States Bureau of Reclamation (USBR) and the Lower Colorado River Authority (LCRA) of Texas. The original purpose of the dam was to prevent floods from devastating Austin, TX. The capital city had substandard heavy damage from previous floods since its establishment in 1846. Soon bureaucrats came together to create the Colorado River Project, wanting to create a series of dams along the Colorado River to create hydroelectric power and serve to control floods and droughts. With Buchanan dam well under way with a total of six planned Marshall Ford was the only dam designed primarily for flood control and the only dam in which USBR oversaw construction. With money scarce there was debate over the final height dam and it reservoir capacity. This issue resolves itself with the flood of 1938. Once completed Marshall Ford Dam would flood 65 miles of the Colorado to form Lake Travis, creating the largest of the seven reservoirs known as the Highland Lakes.
Silenced Rivers: The Ecology and Politics of Large Dams author Patrick McCully (2001) reports that dams store water for river fluctuations as well as for energy and water demands (p. 11).
The one feature common to the Hoover Dam, The Mississippi river and the three gorges dam is that they all tried to control nature’s swings, specifically in the form of flooding. Before the Hoover dam was built, the Colorado river “used to flood spectacularly…but after 1900 the Colorado provoked a vehement response” (Pg 177). The response was simple, but large. The U.S. built several large dams, including the Hoover dam, on the Colorado to decrease its flooding and increase power and irrigation. Unfortunately, just as human control of the Colorado’s flooding increased, its organisms and habitats were detrimentally influenced, and the water became more and more salinated.
In a passage from his book, Rising Tide: The Great Mississippi Flood of 1927 and How It Changed America, author John M. Barry makes an attempt use different rhetorical techniques to transmit his purpose. While to most, the Mississippi River is only some brown water in the middle of the state of Mississippi, to author John M. Barry, the lower Mississippi is an extremely complex and turbulent river. John M. Barry builds his ethos, uses elevated diction, several forms of figurative language, and different styles of syntax and sentence structure to communicate his fascination with the Mississippi River to a possible audience of students, teachers, and scientists.
The positive aspects of ‘Lake’ Powell are few yet noteworthy. Glen Canyon Dam’s hydroelectric power-plant generates one thousand three hundred mega watts of electricity at full operation. That is enough power to supply three hundred fifty thousand homes. Glen Canyon Dam holds twenty seven million acre feet of water, which is equivalent to twice the Colorado River’s annual flow (Living Rivers: What about the hydroelectric loss?). One of the most valuable reasons for the dam to remain active is that “Lake Powell generates four hundred fifty five million dollars per year in tourist revenue, without this cash inflow, gas-and-motel towns . . . would undoubtedly wilt, and surrounding counties and states would lose a substantial tax base” (Farmer 185). These positive aspects are of no surprise considering they are the reason dams are built in the first place.
Congress to delete Echo Park Dam from the Colorado River Project in 1955. Other projects
Grand Coulee Dam is a hydroelectric gravity dam on the Columbia River in Washington State, built by industrialist Henry J. Kaiser It is among the most famous dams in the United States. The reservoir it created is called the Franklin Delano Roosevelt Lake. The reservoir is named after the United States President who seemed to love dams and hydroelectric power and who was involved with the project through to the final completion of the dam. The dam was built as part of the Columbia Basin Project as a way to irrigate the desert areas of the Northwest United States. The dam started during the 1930s as a public works project and finished toward the beginning of World War Two. The initial construction plan was reconfigured during construction for more height. Its height was determined by the point at which the water from the reservoir began backing up into Canada. The scope and size of the dam is hard to comprehend. It is over a mile long and taller than the Great Pyramid of Giza, in fact, all the pyramids at Giza can fit within the base of the Grand Coulee Dam. The dam is so large that a truck at the base looks like a toy, this creates some perspective into the dam's true size. When the dam was completed in the early 1940s it was the largest dam in the world.
This Paper will describe and analyze three articles pertaining to the ongoing debate for and against Glen Canyon Dam. Two of these articles were found in the 1999 edition of A Sense of Place, and the third was downloaded off a site on the Internet (http://www.glencanyon.net/club.htm). These articles wi...
Janie's first marriage is to Logan Killicks. Logan enters the marriage with a large portion of land. However, Janie enters the marriage with practically nothing. This ends up becoming a relationship based on inequality because Logan starts to use his ownership of the land to control Janie. He tries to make her feel that she owes him for part of the land, which he is sharing with her. What begins as a relationship in which Logan struggles to make Janie happy, turns into a relationship in which Janie is expected to make Logan happy. She is often reprimanded for not doing enough work or for not working in certain areas such as the fields.
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Dams made from dirt are very weak and the South Fork dam was built entirely with dirt. From an engineering standpoint dams made with dirt needed to be built ...