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Remediation of Gorge Dam will involve; revitalizing its catchment area, that is the river Cuyahoga to ensure constant supply of water to the dam and reduce the flow of sediment. The decision to remediate a dam is based on various ecological, economical and human considerations in terms of impacts and risks associated with it. According to the American White Water organization, the Gorge Dam is roughly 57feet tall (approximately 17.4 meters), with a current average flow rate estimated at approximately 522 cubic feet per second (approximately 14.8 cubic meters per second). Remediation processes in the United States are regulated by the Environmental Protection Agency and it is executed in stages. The Gorge dam was built in 1912 on the Cuyahoga River between Cuyahoga Falls and Akron Ohio. Vast deposits of metal waste from industries were dumped into the Cuyahoga River between 1912 and 1926, which over time have converted into free flowing sediment. Also from 1926 to 1978, coal combusted products were also laid in the river as waste. The dam was built for the generation of hydroelectric power for the local street car public transportation systems and to provide cooling water storage for a local coal burning power plant. Removing the dam will cost approximately 50 to 70 million dollars and over a year to finish the process depending on how the funds are distributed and consumed. With these figures, it’s better to leave the dam alone since in removing or ignoring the dam doesn’t solve the problem of pollution as the sediment has to be removed even after the dam is removed. Sediment is a naturally occurring material produced by the forces of erosion and weathering and is transported downstream through the water. After removal of the dam, the large amount of polluted sediment on the base of the dam and the river also needs to be taken out to avoid allocating itself downstream. The operation is a major component of the cost consideration and time taken in removing the dam. Ignoring the dam means continued build up of sediment and water quality declination. The solution for the dam is remediation. Currently, the dam has a potential of generating approximately 2526 kilowatts. Considering its situation, this is a good amount of power and this means once the dam is remediated, power generation efficiency will increase. The generated power will be viable for feeding into the national grid. The cost incurred in remediation and upgrading the hydroelectric plant will be recovered in a few years, which is better than spending 50 to70 million dollars in removing the dam and over a year to do so, or incurring an annual expense of 1224 dollars in ignoring the dam to maintain it without any economic benefits. From the calculations in the appendix, Gorges dam can generate up to 2021017 watts of power assuming its efficiency is 80%. Hydroelectric power generation of a typical dam ranges from 70-90 %. When remediated, the fountainhead of the dam will be increased and a higher head implies more potential to generate power. The result is a cheap and readily available power for factories and to the local communities. Cheap and readily available power encourages local investment. Industries will develop which will create employment, and improving the standards of living. Remediating the dam removes the sediment accumulated over the years ...Show more

Summary

s Professor Subject Date Remediation Remediation is the process of restoring a system’s initial capability by correcting its faults, shortcomings and deficiencies. Dam remediation mainly concerned with the removal of the pollutants and sediment accumulated over the years for the purpose of protecting the environment, human health and safety and to restore the Dam’s purpose…
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