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Norris Dam

Norris Dam is a engineering topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Norris Dam rather than just read about it. In short: Norris Dam is a hydroelectric and flood control structure located on the Clinch River in Anderson County and Campbell County, Tennessee, United States. The dam was the first major project for the Tennessee Valley Authority, which had been created in 1933 to bring economic development to the region and control the rampant flooding that had long plagued the Tennessee Valley.

Norris Dam — main illustration
Norris Dam — illustration

Key takeaways

  • Norris Dam belongs to engineering; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Norris Dam to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Norris Dam from memory before moving on to harder problems.

Reference excerpt

Norris Dam is a hydroelectric and flood control structure located on the Clinch River in Anderson County and Campbell County, Tennessee, United States. The dam was the first major project for the Tennessee Valley Authority, which had been created in 1933 to bring economic development to the region and control the rampant flooding that had long plagued the Tennessee Valley. The dam was named in honor of Nebraska Senator George Norris (1861–1944), a longtime supporter of government-owned utilities in general, and of TVA in particular. The infrastructure project was listed on the National Register of Historic Places in 2016. Norris Dam is a straight concrete gravity-type dam. The dam is 1860 feet (570 m) long and 265 feet (81 m) high. Norris Lake, the largest reservoir on a tributary of the Tennessee River, has 33,840 acres (137 km2) of water surface and 809 miles (1302 km) of shoreline. The dam has a maximum generating capacity of 126 megawatts.

Location The Clinch River flows southwestward for 300 miles (480 km) from its headwaters in Virginia through the rugged, sparsely populated hills of northeastern Tennessee before emptying into the Tennessee River near Kingston. Norris Dam is located just over 79 miles (127 km) upstream from the mouth of the Clinch, immediately downstream from the river's confluence with Cove Creek, which joins the river from the northwest. The reservoir includes parts of Anderson, Campbell, Union, Claiborne, and Grainger counties. Norris Reservoir spans a 73-mile (117 km) stretch of the Clinch from the dam to River Ridge at the Claiborne-Grainger county line. The reservoir also covers the lower 56 miles (90 km) of the Powell River, which empties into the Clinch 10 miles (16 km) upstream from Norris Dam. The dam's tailwaters are part of Melton Hill Lake, which stretches for 56 miles (90 km) along the Clinch from Norris to Melton Hill Dam. Norris Freeway, a section of U.S. Highway 441 widened in the 1930s to aid in dam construction, crosses the top of Norris Dam and connects the area to Interstate 75 at Rocky Top, Tennessee to the west and Knoxville, Tennessee to the south. Along with the reservation maintained by TVA for the operation of Norris Dam, most of the lower Norris Reservoir is surrounded by conservation lands, including Norris Dam State Park adjacent to the reservation, the Cove Creek Wildlife Management Area across the lake to the north, and the Chuck Swan State Forest, which protects a largely undeveloped area a few miles upstream.

Background and construction

As early as 1911, the present site of Norris Dam—initially called the "Cove Creek site"—was identified as a prime location for a sizeable dam. Several government and private entities believed that a dam in the upper Tennessee Valley, working in conjunction with dams at Muscle Shoals, Alabama, could provide badly needed flood control to East Tennessee and help keep the Tennessee River consistently navigable year-round. In the early 1920s, several entities—including the Tennessee Electric Power Company (TEPCo), the Knoxville Power & Light Company, and Union Carbide— applied for permits to build a dam at the Cove Creek site, although all were eventually withdrawn or rejected. Part of the opposition was from Senator Norris, who advocated a government-sponsored dam at the site, arguing that a private entity would be almost wholly concerned with power generation rather than flood control and coordination with projects elsewhere in the valley. Norris proposed constructing a network of dams throughout the valley to help regulate its outflow into the lower Mississippi River. Throughout the late 1920s, the U.S. Army Corps of Engineers made several proposals to build a dam at the site, but all were rejected by Congress or vetoed by President Calvin Coolidge. The Tennessee Valley Authority was formed in 1933 as part of President Franklin D. Roosevelt's New Deal legislation. The act authorizing TVA's establishment (signed on May 18, 1933) authorized TVA to immediately begin construction on a dam at the Cove Creek site. On July 30, TVA renamed the Cove Creek project for Senator Norris and began preparations for the dam's construction. As the agency lacked any engineering or dam construction experience, it relied heavily on the Army Corps' original design, and received ample consulting from the U.S. Bureau of Reclamation. Hungarian-American architect Roland Wank (1898–1970) revised the initial plans from Bureau of Reclamation engineers, and gave the poured-concrete Norris Dam a modernist style, which was controversial and advanced for the era of construction, but the result would eventually succeed in elevating Roland Wank to the position of Chief Architect for TVA from 1933 through 1944. Construction began on October 1, 1933.

… excerpt ends here. Continue reading the full article.

Illustrations

Norris Dam illustration
Norris Dam: Workers at Norris Dam, Tennessee Valley Authority, 3 November 1933
Workers at Norris Dam, Tennessee Valley Authority, 3 November 1933
Norris Dam: Design plan for Norris Dam, c. 1933
Design plan for Norris Dam, c. 1933
Norris Dam: "Arthur Roberts and Sam Mynatt drilling in lateral test shaft for examination of substrata at base of Norris Dam." Photograph taken by Lewis Hine October 27, 1933
"Arthur Roberts and Sam Mynatt drilling in lateral test shaft for examination of substrata at base of Norris Dam." Photograph taken by Lewis Hine October 27, 1933
Norris Dam: Curt Stiner, a farmer from the Sharps Chapel area of Union County, was among those displaced for Norris Dam. Stiner criticized the TVA's property acquisition methods, having to sell his farm to TVA for an amount less than he had paid to his father before constructing new farm buildings on it as well.[13]
Curt Stiner, a farmer from the Sharps Chapel area of Union County, was among those displaced for Norris Dam. Stiner criticized the TVA's property acquisition methods, having to sell his farm to TVA for an amount less than he had paid to his father before constructing new farm buildings on it as well.[13]

Worked examples

Example 1 — a first encounter with Norris Dam

Start with the simplest possible case. Write down what Norris Dam claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In engineering, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Norris Dam before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Norris Dam ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Norris Dam

In research
Norris Dam appears in engineering research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Norris Dam in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Norris Dam is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1936 establishments in Tennessee, Dams completed in 1936, Dams on the National Register of Historic Places in Tennessee, so understanding it makes those chapters shorter.
In everyday life
Look for Norris Dam outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.
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How to study Norris Dam in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Norris Dam means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Norris Dam out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Norris Dam in simple terms?

Norris Dam is a hydroelectric and flood control structure located on the Clinch River in Anderson County and Campbell County, Tennessee, United States. The dam was the first major project for the Tennessee Valley Authority, which had been created in 1933 to bring economic development to the region…

Why does Norris Dam matter?

Because it connects several engineering ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Norris Dam?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Norris Dam.

Tags

  • 1936 establishments in Tennessee
  • Dams completed in 1936
  • Dams on the National Register of Historic Places in Tennessee
  • Energy infrastructure completed in 1936
  • Historic Civil Engineering Landmarks
  • Hydroelectric power plants in Tennessee
  • National Register of Historic Places in Anderson County, Tennessee
  • National Register of Historic Places in Campbell County, Tennessee
  • New Deal in Tennessee
  • Tennessee Valley Authority dams

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