Dams contribute to a number of advancements in society. Providing people with water control, electricity, and an abundance of recreational benefits. However, on the downstream of these powerful barriers there are many disasters. While man made dams are very damaging to the environment and humans, some have the belief that the benefits of man made dams outway the destruction. Dams provide society with a number of social, economic, and environmental advantages. For Example, many boating, skiing, camping, and picnic areas, would not be present without dams. Not only do everyday citizens benefit from the recreational benefits of dams, specifically, farmers benefit from the flood control and irrigation dams provide, about “ten percent of American cropland is irrigated using water stored behind dams,” (). Not only do dams contribute to water control, they also “produce over 103,800 megawatts of renewable electricity and meet 8 to 12 percent of the Nation's power needs,” (). While dams have many benefits they …show more content…
Dams are built to slow and/or stop water flow, which seems great in flooded uncontrolled rivers, however, “organic materials from within and outside the river that would normally wash downstream get built up behind dams and start to consume a large amount of oxygen as they decompose,” the problem with this is it creates uninhabitable areas downstream, (“The Downside of Dams: Is the Environmental Price of Hydroelectric Power Too High?”). By creating “dead zones”, areas where marine life is unable to survive in the rivers, ecosystems are getting destroyed. By destroying ecosystems, the natural flow of life is disturbed and nature is unable to refix itself at the rate we are destroying it. Dams are created as a source of energy, however sabotaging clean water is not worth the risk because we need water to
On March 12, 1928, the San Francis Dam (made by William Mulholland) collapsed 12 hours after he and his assistant gave it a safety inspection. The broken dam caused about 450 people to be killed. This was the cause of William Mulholland 's horrible reputation. His career came to an end and he lost everyone 's high respect. Some of the people even wanted him to die because he was the cause of them losing some of their family members.
Pearl Woodrum saw her fears realized when the dam burst in 1972. As the residents of Buffalo Creek slept soundly in their beds, they would not be able to envision the horrors that would occur on that dreary February morning. They knew that any time there was a substantial amount of rainfall in Buffalo Creek, the creek would rise and the lack of an early warning system meant they might never know if a heavy rain heralded disaster until it was too late. Residents also knew that the dam was not stable, a fact the U.S. Geological Survey confirmed when it concluded that the dam was “basically stable but could be overtopped and breached.” William Davies was the federal geologist who conducted the study and stated that if the dam broke, “flood and debris would damage a church and two or three houses downstream, cover the road and wash out the railroad.”
The creation of Dams helped in stopping the more dangerous sediment from hurting the flow of the water. Sediment became one of the main problems with the construction of dams within the Yuma project. Which can clog waterways that can give filtered drinking water as well as harming the wildlife within the water. It can also cause for the water to be dirty and as well as affect the cost of filtered water by increasing it. Another positive that the Yuma Project made was that it had offered to give hydroelectric power which better powered all of Yuma.
Workers tried to build up the dam so that it wouldn't let any water run over, but their efforts
There are around 2,500 dams in Michigan. Dams can be used for suppressing floods and hydropower plant (image below is a dam). Hydropower plants use energy from fast moving water to produce electricity. These are a few ways that humans have shaped
The book had a great impact on the Elwha River and “was cited, both as an inspiration and as cold, hard evidence, by the first advocates for dam removal.” This lead to one of the biggest events in US history, which was the removal of the Elwha Dam about 30 years after the book was written. Brown mentions many ways to fix the ever growing problem at hand, and at the time, most seemed very radical. Yet, on September 19th, 2011 the demolition of the dam began and was the “largest dam removal in history.” The dam had been built in the early 20’s and remained there, blocking the flow of the river for about 100 years before it was finally taken down.
Since the water in the Gila river rise and usually flood Yuma it could be used as a good irrigation instead of it ”rising and flow over the lower Reservation levee causing 800 feet in breaks”. Also since the colorado river was close to the city “the U.S. Bureau of Reclamation channeled the Colorado’s waters through a network of canals to previously arid land, transforming it into fertile cropland, and at the same time, it built a network of dams to generate hydroelectric power and provide flood control. ”Because of the two close rivers and previous flooding helped flattened the land in Yuma. Now the canals provided controlled flooding into crop lands. The other dams like the Laguna dam created hydroelectric power to help
One of my peers read this quote from the article “Landowners own the resource and have the right to pump water from beneath their land, as long as the water is being put to beneficial use,” and was confused at this because he had never heard of landowners being able to pump water on their land and that there was even a law for that. By examining this quote we learned something new instead of just reading it and continuing on. When I was reading this article I found this quote “In a drought, as the rivers run low, less fresh water reaches the ocean, causing an imbalance of salt water to fresh water in coastal estuaries,” and interpreted this fact that when that imbalance occurs it can have some damages to the ecosystem affecting the local vegetation and wildlife. The fisherman and farmers living near the water are also affected by this imbalance causing harm to their crops and animals. The other person I talked to had a personal experience with one of the quotes, “These farmers braved the elements; they were confronted with Mother Nature.”
One of the most significant impacts has been the displacement of Native American communities. In many cases, these communities were forced to relocate to make way for the construction of dams. This relocation disrupted traditional ways of life, including hunting and fishing practices, which are often closely tied to cultural and spiritual practices. For example, the construction of
Glen Canyon Dam was built to provide much needed power to Phoenix. President Eisenhower greenlit the project and the Bureau of Reclamation was the force behind its construction. Although the Sierra Club fought against building the dam, their efforts were not successful. Its creation decimated the natural ecosystems, fish that had evolved to survive in its silty water died as clear colder water came out of the dam. Archeologically the dam also represented a loss, as thousand-year-old petroglyph panes and caved dwelling of the Anasazi became submerged.
In the 1800s, the first national debate occurred over the idea of damming Hetch Hetchy. The two sides include Preservationists who wanted to preserve Hetch Hetchy and Conservationist who believed that we should take advantage of the resources Hetch Hetchy provides. This created conflicts between the Conservationists and the Preservationists over the thought of building a dam in Hetch Hetchy. However, the Preservationists ultimately failed to convince Congress to stop the damming of the Hetch Hetchy due the ability to make money off the reservoir and the resources Hetch Hetchy provides that would benefit the people of San Francisco. This is proven through several of documents written by Gifford Pinchot and John Raker, San Francisco District
Water Pollution is a huge environmental problem that has serious effects on marine habitats, animals, and water quality. BP1: The world's marine habitat has been getting worse because of how bad the pollution has gotten. “ Over 80% of marine pollution comes from land based activities “ (source 5 ). This quote explains how most of the water pollution is caused by human activity. “ Plastic litter does not degrade, can be expected to last in the oceans for hundreds of years “ ( source 6 ).
Flash floods may cause loss of lives and properties. Soil erosion will leads to loss of minerals for the land. The land cannot be used for
They also include the replacement of undersized structures such as bridges. These works are necessary, as the original channels have become undersized as a result of the increase in flood flows caused by development. Flash flood also can be overcome with storage ponds of flood attenuation. Ponds such as disused mining pools can be used for flood storage. The objective is to divert the flood water through such ponds and thus regulate the outflow so that the flood peaks are attenuated.
To put it simply, commons is defined as “land and resources belonging to or affecting the whole of a community” (Oxford Dictionary, 2018). The two key characteristics of a commons is that it is hard to exclude others from using it and it is subtractable, meaning it has finite quantity and declines through use/over time (Thorn, 2018). These characteristics can be related not directly to the dams but to the rivers they dam. For example, the Elwha River as shown in the film. Historically, the river was of great importance to the native Elwha tribe due to the fact salmon were an important part of their lifestyle and the river was an essential part of their spiritual heritage (Gowan et al., 2006).