Archive for the 'Construction' Category

DAM CONSTRUCTION BEGAN ON THIS DAY IN 1930

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On July 7, 1930, construction of the Hoover Dam began. Over the
next five years, a total of 21,000 men would work ceaselessly to
produce what would be the largest dam of its time, as well as one
of the largest manmade structures in the world.

Although the dam took only five years to build, its construction
was nearly 30 years in the making. Arthur Powell Davis, an
engineer from the Bureau of Reclamation, originally had his
vision for the Hoover Dam back in 1902, and his engineering
report on the topic became the guiding document when plans
were finally made to begin the dam in 1922.

 

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Herbert Clark Hoover (August 10, 1874 – October 20, 1964)

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BIRTH OF A BRIDGE BEGAN ON THIS DAY IN 1933

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On January 5, 1933, construction began on the Golden Gate Bridge,
as workers began excavating 3.25 million cubic feet of dirt for the structure’s
huge anchorages.

Following the Gold Rush boom that began in 1849, speculators
realized the land north of
San Francisco Bay would increase in
value in direct proportion to its accessibility to the city. Soon, a
plan was hatched to build a bridge that would span the Golden
Gate, a narrow, 400-foot deep strait that serves as the mouth of
the San Francisco Bay, connecting the San Francisco Peninsula
with the southern end of Marin County.

 

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Construction underway on a pylon on the south shore of the Golden
Gate Bridge project.

The Golden Gate Bridge under construction with the Pylon #1 and the North and South Towers rising above Fort Point.

High in the fog, structural steel workers staged the traditional ceremony of raising flags when the structural steel work on the Marin County Towers of the Golden Gate Bridge, San Francisco was completed.
Members of the Halfway to Hell Club bridge construction crew
became celebrities in the Bay Area.

 

Fact: The US Navy originally planned to paint the
bridge with black and yellow stripes to ensure
visibility for passing ships.

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CORNERSTONE LAID ON THIS DAY IN 1792

United States Capitol cornerstone laying - Wikipedia


After eight years of construction on the White House, President
John Adams and his wife,  Abigail, moved into the unfinished
home in 1800.


 

     

 

Visitor's Guide to The White House

White House kicks infosec team to curb in IT office shakeup | Ars Technica

 

 

 

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DIVIDING WALL BUILT ON THIS DAY IN 1961

The construction of the Berlin Wall - Berlin.de

The Berlin Wall is built (1961) | German history | DW | 22.04.2013

Shortly after midnight on this day in 1961, East German soldiers begin laying
down barbed wire and bricks as a barrier between Soviet-controlled East
Berlin and the democratic western section of the city.

After World War II, defeated Germany was divided into Soviet, American,
British and French zones of occupation. The city of Berlin, though technically
part of the Soviet zone, was also split, with the Soviets taking the eastern part
of the city. After a massive Allied airlift in June 1948 foiled a Soviet attempt to blockade West Berlin, the eastern section was drawn even more tightly into
the Soviet fold. Over the next 12 years, cut off from its western counterpart
and basically reduced to a Soviet satellite, East Germany saw between 2.5
million and 3 million of its citizens head to West Germany in search of better opportunities. By 1961, some 1,000 East Germans—including many skilled
laborers, professionals and intellectuals—were leaving every day.

NATO - Declassified: Building the Berlin Wall, 13-Aug.-1961

Berlin Wall - Now and Then - CBS News

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BRIDGE CONSTRUCTION ON THIS DAY ~ 1933

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Construction began on the Golden Gate Bridge, as workers began excavating
3.25 million cubic feet of dirt for the structure’s huge anchorages.

Following the Gold Rush boom that began in 1849, speculators realized the
land north of
San Francisco Bay would increase in value in direct proportion
to its accessibility to the city. Soon, a plan was hatched to build a bridge that
would span the Golden Gate, a narrow, 400-foot deep strait that serves as the mouth of the San Francisco Bay, connecting the San Francisco Peninsula with
the southern end of Marin County.

Although the idea went back as far as 1869, the proposal took root in 1916. A
former engineering student, James Wilkins, working as a journalist with the
San Francisco Bulletin, called for a suspension bridge with a center span of
3,000 feet, nearly twice the length of any in existence. Wilkins’ idea was
estimated to cost an astounding $100 million. So, San Francisco’s city
engineer, Michael M. O’Shaughnessy (he’s also credited with coming up
with the name Golden Gate Bridge), began asking bridge engineers whether
they could do it for less.

Engineer and poet Joseph Strauss, a 5-foot tall Cincinnati-born Chicagoan,
said he could.

Eventually, O’Shaughnessy and Strauss concluded they could build a pure suspension bridge within a practical range of $25-30 million with a main span
at least 4,000 feet. The construction plan still faced opposition, including
litigation, from many sources. By the time most of the obstacles were cleared,
the
Great Depression of 1929 had begun, limiting financing options, so officials convinced voters to support $35 million in bonded indebtedness, citing the
jobs that would be created for the project. However, the bonds couldn’t be
sold until 1932, when San-Francisco based Bank of America agreed to buy
the entire project in order to help the local economy.

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