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Hoover Dam ETP Engineering Technology Pathways


									                Design for Engineering
             Unit 7 Technology and society
                     Annette Beattie
                    August 15, 2006

    Hoover Dam
             ETP 2006 – Annette Beattie
  This material is based upon work supported by the
    National Science Foundation under Grant No.
0402616. Any opinions, findings and conclusions or
recommendations expressed in this material are those
 of the author(s) and do not necessarily reflect the
   view of the National Science Foundation (NSF).
Hoover Dam
Hoover Dam
        Hoover Dam
 One of the "Seven Modern
  Engineering Wonders of the
  United States”
 The strong desire to harness
  nature's power drove the human
  mind and body to build a dam in
  the hottest, driest area of the
  United States.
        Hoover Dam
 People wanting to irrigate low
  lying desert areas without
  suffering from flooding made it
  obvious to the United States
  government that the Colorado
  River was part of the solution.
         Hoover Dam
 The government pursued bids for the
  building project.
 This project was so demanding that
  one construction company would
  not be capable enough to solely
  build the dam.
 Therefore, six of the largest United
  States construction companies
  worked together to acquire the bid
  calling themselves Six Companies,
          Hoover Dam
 Frank Crowe
  was chief
  engineer of Six
  Companies, Inc.
  that lead the
        Frank Crowe
 Born in Trenholmville, Quebec,
 Graduated from the University
  of Maine in 1905 with a degree in
  civil engineering.
 The University's Francis Crowe
  Society is named in his honor.
        Frank Crowe
 Crowe became interested in the
  American west during a lecture from
  Frank Weymouth, a guest speaker
  from the United States Bureau of
 He signed up for a summer job before
  the end of the lecture.
 That summer job began a 20 year
  career with the reclamation service
  that would change the face of the
  American west.
         Frank Crowe
 While working on the Arrowrock
  Dam in Idaho, Crowe pioneered two
  practices that are crucial to the
  construction of large dams.
 The first was a pneumatic delivery
  system to transport cement.
 The second was a system of
  overhead cables to allow the
  pneumatic system to pump cement at
  any point on the construction site.
        Frank Crowe
 Using this technique, Crowe
  built some of the largest dams
  in the American west, including
  the Shasta Dam and 18 other
  dams. But the Hoover Dam was
  crowning glory.
        Frank Crowe
 "I was wild to build this dam,"
  Crowe would later recall. "I
  had spent my life in the river
  bottoms, and (Hoover) meant a
  wonderful climax--the biggest
  dam ever built by anyone,
         Frank Crowe
 It is said about Crowe that he was
  not only an engineering genius, but a
  people genius as well.
 He finished the dam 2 years ahead of
 And received a $350,000 bonus
 (In 1936 the avg. salary was $1,500)
         Hoover Dam
 Taking on such a project gave jobs
  to many during the depression
 However, it cost the lives of
  approximately 100 people
 several communities had to relocate
  due to (manmade) lake mead that took
  up 247 sq. miles
 It serves electricity to Arizona,
  Nevada, and southern California
 Lake Mead is enjoyed by 8-10 million
  people each year
 http://www.hooverdamtourcompan

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