Topics: This lesson could be used in American history, social studies, government, and civics courses in units on the Great Depression and the New Deal, American political history, or the history of technology. Work on the dam began sooner than originally planned. In the information security field, 10 years seems a much longer time. It was the highest dam in the world when it was completed in 1935. Right off we decided to prepare a list of seven wonders of the United States. Its construction, in the teeth of the Great Depression, was a source of such national pride that thousands of people journeyed through the hostile desert to witness the arrival of what has become an enduring monument to collective effort for the public good. You can then pump a very thin cement soup into cracks and spaces that have opened up. By this time, however, Reclamation's objective was changing and expanding. Why do you think Six Companies was so anxious to get this part of the project done quickly? The Art Deco concrete structure, located about an hour outside Las Vegas in the Black Canyon of the Colorado River, straddling the Nevada-Arizona border, was the largest hydroelectric generating station, and the world's largest concrete structure when completed in 1936. Roosevelt strongly defended the work relief projects for which his administration was famous. . Pipe for ice water581 miles of it will do. What benefits would controlling it provide and to whom? Congress passed the Reclamation Act in 1902, during the Progressive Era administration of President Theodore Roosevelt. 2) One reading about the construction of Hoover Dam; Also in 1922, congressional representatives from California introduced a bill to authorize Reclamation to build the big dam on the lower Colorado. In 1938, a New York publisher put out an illustrated cartoon guide for tourists visiting Hoover Dam, then known as Boulder Dam. Do you think he made a good case? The canals and aqueduct in California receive water from the Colorado. Wed need three or four above average years, back to back, to restore the lake. Securing the dam and providing a safe experience for the many visitors requires a robust security program. 3. They may be surprised at how old and how impressive some of these structures are. Roosevelts speech was front-page news in newspapers all over the country. As you make each section of pipe, X-ray it for defects. The shovels had to remove about 130 feet of soil and loose rock before they could get down to solid rock. Standard E - The student identifies and describes the basic features of the political system in the United States, and identifies representative leaders from various levels and branches of government. Look for the drills (they look a little like machine guns). Private businesses may have built some of the dams, power plants, or other such facilities, but they do not fit the definition of "public works" given here. Excavating.Lower steam shovels into the canyon. Finally, ask the students to consider what effect building a new dam might have on these problems. And this picture is true on different scales in regard to the thousands of projects undertaken by the Federal Government, by the States and by the counties and municipalities in recent years. Simple? Refer to Reading 2 if necessary. ScalingAfter standing out in the weather so long, canyon walls become soft and decayed on the surface. Do students think it would be necessary for the federal government to be involved to plan and complete such a new dam? Activity 2: "Seven Wonders of the United States" Roll your Windows Down, Any Firearms with you?Hoover Dam Firearms and Bomb Search Checkpoint, Security Guard on NV-172, Boulder City, Nevada, 21 April, 2021,. Families created a temporary community called "Ragtown." Due to its unique shape, an ascending air current is created that makes the water behave in a very unique way, it defies gravity thanks to that Continue Reading 1.2K 28 38 Quora User Since 2000, the water level in Lake Mead, which is the reservoir formed by Hoover Dam and holds the title of the largest reservoir in the country, has dropped about 140 feet. This website includes links to a number of documents, including a short history of Reclamation, a longer, book-length history of the years before 1945, and a study of large Federal dams, including Hoover. It happened outside of the Arizona generator powerhouse at an electric transformer. Things look pretty grim. The wellspring of Lake Mead created by the dams blocking of the Colorado River has plummeted to a historic low as states in the west face hefty cuts in their water supplies. On May 8, 1933, Ickes decided that the dam in Black Canyon would revert to being called Boulder Dam. The bridge was completed in 2010 and there are many descriptions about the building of the bridge so its good for any kids with an architecture and/or civil engineering interest. Under their contract with Reclamation, they would have to pay $3,000 for every day they exceeded the deadline for finishing this part of the work. BOULDER CITY, Nev. (KLAS) A fire Tuesday at the Hoover Dam has made headlines around the world, but the fire did not actually happen on or inside the dam. Sand and gravelget quite a bit of this to mix with the cement; enough to make 4,440,000 cubic yards of concrete. 3. Finally, ask them to consider which job they themselves would like best. They joined specifically for this project. 5. In a little over two years this great national work has accomplished much. Corporal Joe Ward . Divide the class into seven small groups. 3. The Hoover Dam is one of the crown jewels of American infrastructure. Here are some guidelines to help you on your way: In terms of security certifications, Security+ predates ISACA's CISM and Red Hat's Certified Security Specialist. Standard F - The student uses knowledge of facts and concepts drawn from history, along with methods of historical inquiry, to inform decision-making about and action-taking on public issues. Ask the students to compare the private projects with the ones that were the result of government programs and to define for themselves the differences between public and private "works." Concrete has a nasty habit of cracking. Some marinas have been wrenched from their moorings and moved because they have been left marooned in baking sediment. Hoover Dam PBS Film Each spillway, designed to let floodwaters pass without harming the dam itself, can handle the volume of water that flows over Niagara Falls. The diversion tunnels were among the longest in the world when they were built. Barely into summer, hundreds of people have already died from the heat along the west coast. Make this cofferdam about a hundred feet high, two blocks thick at the base and 70 feet thick on top. Do you agree? The area is also prone to cloudbursts, high winds, and sudden floods. Hoover Dam, formerly called Boulder Dam, dam in Black Canyon on the Colorado River, at the Arizona-Nevada border, U.S. Ask students to investigate how the places supplied by Hoover Dam have grown since 1935. Which job would have been the most dangerous? Tickets for tours of the dam and the power plant are available at the Visitor Center. Why were congressional representatives from the state of California the leading supporters of a big dam on the Colorado? How many gallons of water are in an acre-foot? But the wellspring of Lake Mead, created by the dams blocking of the Colorado River and with the capacity to hold enough water to cover the entire state of Connecticut 10ft deep, has now plummeted to an historic low. By this time, Franklin D. Roosevelt, a Democrat, had been elected president. However, it took six more years before Congress passed the Boulder Canyon Project Act. What benefits would a new dam provide? Guiding us was Peter Gregson, regional security officer for Reclamation's Lower Colorado Region. The geographic area drained by a river and its tributaries is called a "basin." Work actually began during the summer and continued around the clock until the dam was completed in 1935, two years ahead of schedule. Why do you think visitors would drive so far to watch the dam under construction? A few hundred miles north, a fast-moving wildfire incinerated the town of Lytton in British Columbia the day after it set a Canadian temperature record of 121F (49.4C). Visitors who have Hoover Dam as a destination in their travel plans need to know a few facts, as there are some restrictions around the site. Getting money in local budgets to keep them updated or even maintained is often difficult. It caused enormous damage and permanently flooded thousands of acres. Ask each of the other groups to study one of the six "wonders" (excluding Hoover Dam) on Corporal Ward's list. Geologic Formations, National Parks, State Parks, Nature & Wildlife Areas, Canyons, Points of Interest & Landmarks, Historic Walking Areas, Observation Decks & Towers, Points of Interest & Landmarks, Fountains, Points of Interest & Landmarks. Theme III: People, Places, and Environments. Its main purpose is to staunch flooding, be a source of water for the arid deserts of Nevada, and provide a bit of hydroelectric power via a power station while it was at it. 4. Additional money is allocated for security work on . Which of those would they select as their "Seven Wonders"? The pace of change has been jarring to the millions of people who regularly boat, fish and swim on the lake, with the National Park Service recently laying down new steel platforms to extend launch ramps that no longer reach the water. LESSON NO. Great way to see an amazing feat of civil engineering. When the contracts were signed, almost two thirds of the electricity went to Southern California. There are eight generators inside the Nevada . To hurry it up, string two or three miles of water pipe around through each five-foot layer of concrete as you pour it. 3. The lake extends about 110 miles upstream from the dam. 1. You can take one of themno one will miss itmaybe. The dam stands 60-stories tall (726.4 feet) The base of the dam is two football fields thick. The massive structure took 5 years to build, between 1931 and 1936; the thousands of laborers . Why or why not? Lake Mead, the reservoir created by the Hoover Dam, is the largest reservoir in America. The discussion took a turn when we reminded ourselves that these wonders belonged to the ancient world. Is there a security background check? And you will need to build some roads and erect a power line. "Cars are searched on a random basis or if there is a reasonable suspicion," he said. The Hoover dam police department partners with many of the neighboring law enforcement agencies. Ice plantyouve got to have a plant capable of turning out about 2 million pounds of ice a day. Look at Illustration 1. 3) Two documents, a "Short Course in Engineering" and selections from President Roosevelt's speech at the dedication of Hoover Dam in 1935; Hoover Dam was the first man-made structure to exceed the masonry mass of the Great Pyramid of Giza. We talked to him about security and access at the site, deemed one of America's Seven Modern Civil Engineering Wonders by the American Society of Civil Engineers. Lakes in Arizona are now so low they cant be used to fight the fires themselves spurred by drought, while the retreat of Lake Folsom in California uncovered the wreckage of a plane that crashed 56 years ago. Oversized vehicles, recreational vehicles, and vehicles with trailers must use the parking lots on the Arizona side of the dam. Standard 1BThe student demonstrates how American life changed during the depression years. It is just another bridge even though the engineering that went into it was amazing. These new projects would also control floods, supply water to growing cities, and generate electricity to fuel industrial growth in a new West. The short answer: no, yes, further than you think, a half-day, yes. Go back to Reading 2. Each spillway, designed to let floodwaters pass without harming the dam itself, can handle the volume of water that flows over Niagara Falls. Today marks the official completion and dedication of Boulder Dam. Hoover Dam has accomplished every goal set forth in the Boulder Canyon Project legislation. It impounds Lake Mead, which extends for 115 miles (185 km) upstream and is one of the largest artificial lakes in the world. The dam is used for flood and silt control, hydroelectric . The average high temperature in this area in August is 103 degrees. They were responsible for keeping the project on schedule and within budget. Boulder Dam is a splendid symbol of that principle. 1. Trace the course of the Colorado River. 6 Standard E - The student locates and describes varying land forms and geographic features, such as mountains, plateaus, islands, rain forests, deserts, and oceans, and explains their relationships within the ecosystem. Why was it important to speed up the cooling process? The dam, the bridge, and Lake Mead are worthy tourist sites. In Boulder City, take a left at the second stoplight in town (there are only two of them). (Bureau of Reclamation; Ben Glaha, photographer). There is a charge for the tours, in addition to an admission charge for the Visitor Center. The Hoover Dam wasn't built just to be a tourist attraction, naturally. Do you think you would have come here looking for a job? It is just 37% full,. Located in Pyramid Canyon about 70 miles downstream from Hoover Dam, this zoned earth-fill dam consists of concrete . . The plan was for construction to start in the fall of 1931, in the depths of the Great Depression, which had begun with the stock market crash of 1929. It was a hot day and the ice cream is really yummy from the kiosk although a little pricey but so worth it. What were conditions like in America in 1931? By this time, too, developers in Los Angeles and other rapidly growing cities in Southern California had added their powerful support for the project. Your guess is as good as mine whether well get that. This shows the floor of the canyon, hundreds of feet below. It prevents disastrous floods. Reading 2 is abridged from Reg Manning's Cartoon Guide of the Boulder Dam Country (Locust Valley, NY: J.J. Augustin, 1938), pages 10-17. Building Big The company listings and photos are matched at the checkpoint. LESSON NO. Hoover Dam: Hoover Dam tour ruined by Dam security! At flood time, if the lake rises high enough to reach the spillways, it can be turned out through these original tunnels. Had the formidable white arc of the Hoover dam never held back the Colorado River, the US west would probably have no Los Angeles or Las Vegas as we know them today. It held back what was then, and still is, the largest man-made lake in the United States. In March 1931, Reclamation awarded the contract to build the dam to Six Companies, Inc. Six Companies was a group of some of the largest construction companies in the country. They were looking for places to build dams to store the water from the annual spring runoff, releasing it gradually during the summer for irrigation. Its reservoir was the largest artificial lake in the world for decades and is still the largest in the United States. The cut-away view on the right side shows features that would not be visible from the surface. Identify the characteristics places would have to have to be on such a list. Hoover Dam would be the highest dam in the world, far taller than anything they had built so far. That is why I have the right once more to congratulate you who have built Boulder Dam and on behalf of the Nation to say to you, "Well done." Questions for Reading 3 Do you think you would have wanted to do work like this? 1. Many of those who take their lives do so in order to escape the mental anguish of coping with daily life. The states of the west, primarily Arizona and Nevada, now face hefty cuts in their water supplies amid a two-decade drought fiercer than anything seen in a millennium. Can you trace the course the water follows from the reservoir through the power plants and outlet works and then back into the river? Not as exciting as the Grand Canyon but worth the visit. Why do you think the dam had to be so thick at the bottom? We came back up from Laughlin so we could stop at the dam. Ask each group to select a job and do some research on it. Hoover Dam is 1,244 feet long at the top. All visitors are required to go through security screening when entering the Visitor Center. They stretch for some 124 miles (200 kilometers) along the upper and middle reaches of the . What do you think working here would be like? Standard C - The student uses appropriate resources, data sources, and geographic tools such as aerial photographs, satellite images, geographic information systems (GIS), map projections, and cartography to generate, manipulate, and interpret information such as atlases, data bases, grid systems, charts, graphs, and maps. How long would it take for the concrete in the dam to cool by itself? Look at the drawing in the upper right hand corner. Are there some kinds of works that only government can build? No dreams of relocating to live in a tamed desert. It stabilizes the flow of water in the river, improving boat navigation. Nearly 40 million people, including dozens of tribes, depend on the rivers water. This will cause the mass to cool and shrink quickly. Roosevelt defeated Hoover in the presidential election of 1932. Next, the new improved security. The Hoover dam website has a list of additional jobs. Standard C - The student describes the various forms institutions take and the interactions of people with institutions. Standard K - The student proposes, compares, and evaluates alternative uses of land and resources in communities, regions, nations, and the world. The past two years have been shocking to me, I never thought I would see downtown LA reach 111F as its so close to the ocean, but we have some of the driest conditions in 1,200 years so the dice are loaded for more heatwaves and fires. Gregson said many of the security controls, including such things as the checkpoints and command center, were instituted in direct response to the 9-11 terrorist attacks. The drought is expected to cause the hydro facility at Lake Oroville, California, to completely shut down, prompting a warning from the United States Energy Association that a megadrought-induced electricity shortage could be catastrophic, affecting everything from food production to industrial manufacturing. 1. The left side shows what a visitor looking upstream at the dam would actually see. Most of the states were afraid California was going to get more than its fair share of the water. It supplies water and power to Los Angeles and other rapidly growing cities in the Southwest. Many of the men seeking work brought their families with them. Why or why not? Obviously you must not allow this to happen when you are building a dam. Plate steel for making pipes88 million poundswhen you get into pipe 30 feet in diameter, you have to make your own. 5. Meanwhile, a new Hoover Dam Bypass and bridge is under construction, scheduled for completion next year. The company requesting a permit lists its point of origin and delivery, submits a listing of its drivers, and provides appropriate detailed information such as driver's license number, complete with photo. Look carefully at the cut-away view. The materials listed below can be used directly on the computer or printed out, photocopied, and distributed to students. Security can help organize and control situations such as large events crowds, employee terminations, or to promote a general sense of order and safety in corporate buildings. At the other end of the tunnels build another cofferdam to keep the water from backing up, pump the puddles out from between, and there you have ita dry spot in the river, with the stream running right around it, through the tunnels. The engineering might of Hoover dam undoubtably reshaped Americas story, harnessing a raucous river to help carve huge cities and vast fields of crops into unforgiving terrain. How would their list compare with the original "Seven Wonders of the World" and with Corporal Ward's "Seven Wonders of the United States? The tour began at the Hoover Dam Police Department in the Security Command Center, where the security staff monitors the various security, access control, and communications systems on a 24/7 basis. (National Council for the Social Studies). These are scenarios that arent necessarily where we expect to be in our models, said Bernardo, whose work helps deliver a reliable level of water to thirsty western states. Concrete was delivered to each block in buckets, eight cubic yards at a time. They contribute to the economic development of the United States and to the social welfare of the American public. Labor makes wealth. 5. Hoover Dam was both listed on the National Register of Historic Places in 1981, and was designated a National Historic Landmark in 1985. Internal combustion engines produce carbon monoxide. Could you build it without men to drive trucks or feed the workers? 4. Why was this work necessary? Do you think anybody today would suggest that no one might notice if you flooded one of them? One of the definitions of "penstock" is a pipe or conduit that carries water from a reservoir to electrical generating equipment. Inside the Arizona powerhouse are nine massive generators. How many dams can you find on the Colorado River? Anyone who doesn't allow inspection of their vehicle is turned around. At Boulder Dam they had to get the electricity from Los Angeles to build the dam which now sends electricity back to Los Angeles. In the early 21st century, almost a million visitors a year still come to see the great dam on the Colorado River. Parking is limited there, so you may have to orbit the parking lot a bit for a spot. Such expenditures on all of these works, great and small, flow out to many beneficiaries; they revive other and more remote industries and businesses. Were getting those years that are at the extreme ends of the bell curve. Temperatures skyrocket during certain times of the year. Standard A - The student elaborates mental maps of locales, regions, and the world that demonstrate understanding of relative location, direction, size, and shape. Most had to travel many miles, at the end through a hostile desert, to reach this location on the border between Nevada and Arizona. Describe the shelter shown in Photo 2.
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