An analysis of the hetch hetchy valley dam controversy

Hetch hetchy was once a resplendent glacier carved valley, with towering cliffs and waterfalls cascading onto a serene valley floor pioneer conservationist john muir called it a remarkably exact counterpart to the now world-famous yosemite valley - 15 miles to its south. An analysis of the hetch hetchy valley dam controversy rock-bound meadow 14-3-2013 hetch hetchy debate permission has been granted to writing achievements high school essay the national park service to post this information. The debate of the hetch-hetchy the damming of the hetch-hetchy valley in yosemite national park was one of the most disputed construction projects to ever take place in an american national park there were a wide variety of aspects and opinions that had to be taken into consideration from all different sorts of groups to make a sound decision. Construction of the dam transformed the valley, but did not, by any means, end the hetch hetchy controversy indeed, one of the strengths of righter's book is that he does not view the dam as the terminus of the story, but instead considers a slew of controversies that followed in its wake. Silicon valley business leaders also say that because two-thirds of hetch hetchy water customers live outside san francisco, in places like palo alto and north san jose, they should get to vote, too.

Restoring a valley the removal of the hetch hetchy dam and reservoir isn't even in the planning stages yet the measure on november's ballot simply asked voters to earmark money for research and. The hetch hetchy valley west of yosemite national park was once described by john muir as “one of nature’s rarest and most precious mountain temples. The city desperately needed water and power, and yosemite’s hetch hetchy valley, where two steep granite walls met in a narrow v, was perfect for anchoring a dam.

The valley was the object of great controversy during the period when the city of san francisco lobbied in washington dc to build a dam to contain the water of the tuolumne river the dam created a water source for the city along with electricity. In 1900, the united states geological survey (usgs) recommended the hetch hetchy valley, at the headwaters of the tuolumne river, as the best source for san francisco’s water supply it was during this time, in 1890, that congress established yosemite national park, which includes the hetch hetchy valley. Hetch hetchy has generated controversy since it was first proposed as a source of water following the 1906 san francisco earthquake congress also had to approve the project because it was located in a national park and passed the raker act in 1913 to do so. In 1912 john muir published his collection the yosemite, which included “hetch hetchy valley,” his essay singing the glories of the “other” yosemite valley and an argument against the construction of a dam that would flood the basin in order to provide water for san francisco the city had.

The hetch hetchy valley was located in a national park, and thus fell under the protection of the federal government congressional debate occurred between 1908 and 1913 and congress ultimately passed a bill, signed by president woodrow wilson on dec 9, 1913. The main and largest, o’shaughnessy dam (named after the project manager michael o’shaughnessy) and hetch hetchy reservoir are located in the hetch hetchy valley the main dam was built in two phases, initially built to a height of 226 feet in 1923 later it was raised to 312 feet in 1938. The hetch hetchy water system includes other reservoirs, and the one in hetch hetchy valley stores only about a quarter of the water san francisco gets from the tuolumne river in a 2006 analysis in the journal of the american water resources association , lund identified additional options for storing the water that is currently in hetch.

Have each group prepare to share its analysis with the class and explain how and to what extent their document(s) reflect(s) one of the following statements about the value of the hetch hetchy valley. Hetch hetchy controversy is best understood as a clash of values, or, more accurately, a clash of an application to build a municipal reservoir in the hetch hetchy valley7 the fact that it was within a national park at the time, a relatively new and somewhat ambiguous designation. Reassembling hetch hetchy: water supply without o’shaughnessy dam1 sarah e null and jay r lund2 this study provides quantitative estimates for the construction of a dam in hetch hetchy valley by an 86 percent majority vote in 1908 (sierra club, 2002.

An analysis of the hetch hetchy valley dam controversy

an analysis of the hetch hetchy valley dam controversy The arrangement with hetch hetchy has long been a delicate issue for san francisco environmentalists have fought for years to tear the dam out, and the group restore hetch hetchy won an audience.

Hetch hetchy was a spectacular high-walled valley within yosemite national park theodore roosevelt led the fight in favor of building a dam at hetch hetchy in 1908, by a wide margin, san francisco voters approved building a dam at hetch hetchy. The hetch hetchy controversy, 1903-13 additional resources in the library of congress the library of congress's general collections include many materials related to the hetch hetchy controversy: books, pamphlets, and government documents. Park is hetch hetchy valley, through which runs the tuolumne river its name comes from the indian atch ible mix of grasses and seeds today this 1,972 acre valley is flooded with water impounded by the o'shaughnessy dam the gravity arch dam was completed in 1923 and raised an addi-tional 86 feet fif-teen years later, and hetch hetchy. The hetch hetchy reservoir in yosemite delivers water to 26 million bay area residents every day this november, a group of environmental advocates will put forth a ballot measure that would require the san francisco public utilities commission to develop a plan to drain hetch hetchy but tearing down o’shaughnessy dam in order to restore hetch hetchy valley would be a disaster.

  • The broad valley of the tuolumne at hetch hetchy was a peaceful, green oasis before the o’shaughnessy dam was completed in 1923 the river meandered its way westward, fed by the twin wapama falls.
  • O'shaughnessy dam is a 430-foot (131 m) high concrete arch-gravity dam in tuolumne county, california, in the united statesit impounds the tuolumne river, forming the hetch hetchy reservoir at the lower end of hetch hetchy valley in yosemite national park, about 160 miles (260 km) east of san francisco the dam and reservoir are the source for the hetch hetchy aqueduct, which provides water.
  • The hetch hetchy regional water system is owned and operated by the san francisco public utilities commissionit provides on average about 265,000 acre-feet of water to 26 million people in 29 bay area cities spread across santa francisco, santa clara, alameda, and san mateo counties.

Then, in 1905, pinchot backed san francisco in the hetch hetchy controversy and described a reservoir in the valley as “the highest possible use which could be made of it,” at which the break with muir became irreparable. Remember hetch hetchy: the raker act and the evolution of the national park idea december 20, 2013 posted by: bw - park ranger yesterday, december 19, was the centennial of the raker act, the bill that allowed the building of a dam in the hetch hetchy valley. Today hetch hetchy valley lies buried under water behind the o’shaughnessy dam by a large measure, it is the most significant damage ever allowed in any of our national parks restore hetch hetchy intends to undo “this great american mistake”, and return hetch hetchy to yosemite national park and all people.

an analysis of the hetch hetchy valley dam controversy The arrangement with hetch hetchy has long been a delicate issue for san francisco environmentalists have fought for years to tear the dam out, and the group restore hetch hetchy won an audience. an analysis of the hetch hetchy valley dam controversy The arrangement with hetch hetchy has long been a delicate issue for san francisco environmentalists have fought for years to tear the dam out, and the group restore hetch hetchy won an audience.
An analysis of the hetch hetchy valley dam controversy
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