Using new international measurement standards and technology not available in the past, NOAA’s National Geodetic Survey has calculated the official architectural height of the Washington Monument to be 554 feet 7 11/32 inches [...].
Although the newly established architectural height differs from the historical height of 555 feet 5⅛ inches, neither the starting point nor the so-called “standard deviation” used for the original 1884 measurement is known [...]. — noaa.gov
More than 150 cracks have been repaired, rainwater leaks have been sealed, and the 130-year-old Washington Monument is set to reopen Monday for the first time in nearly three years since an earthquake caused widespread damage.
The memorial honoring George Washington has been closed for about 33 months for engineers to conduct an extensive analysis and restoration of the 555-foot stone obelisk that was once the tallest structure in the world. — blogs.wsj.com
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