Washington Monument

Washington Monument (HM1CFE)

Location: Washington, DC 20230
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Country: United States of America
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N 38° 53.513', W 77° 2.038'

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— Earthquake of August 23, 2011 —

On August 23, 2011, a 5.8 magnitude earthquake occurred 84 miles southwest of Washington, D.C. As the earth shook, the Washington Monument sustained significant damage to many of its marble and granite blocks.

Although the monument remains structurally sound, internal and external stone damage was discovered in many areas. Most occurred in the top fifty feet of the monument, the pyramidion, which suffered cracks to marble panels, tie beams, and rib bearing haunches, as well as displacement of rib stones. Emergency teams waterproofed cracks and removed loose stone for safety.

Close-up of earthquake-damaged stonework and a diagram showing the extent of damaged exterior stone on the east face of the Monument.

Photo captions:

Preparation and Repairs:
To facilitate Washington Monument repairs, a temporary access road and scaffolding in place.

Accessing damage in September 2012

Repairs are expected to be completed in 2014.National Mall and Memorial Parks
Year Placed2013
Placed ByU.S. Dept. of the Interior: National Park Service,
Marker ConditionNo reports yet
Date Added Sunday, September 7th, 2014 at 2:57pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)18S E 323599 N 4306745
Decimal Degrees38.89188333, -77.03396667
Degrees and Decimal MinutesN 38° 53.513', W 77° 2.038'
Degrees, Minutes and Seconds38° 53' 30.78" N, 77° 2' 2.28" W
Driving DirectionsGoogle Maps
Area Code(s)202
Closest Postal AddressAt or near 1506-1598 Constitution Ave NW, Washington DC 20230, US
Alternative Maps Google Maps, MapQuest, Bing Maps, Yahoo Maps, MSR Maps, OpenCycleMap, MyTopo Maps, OpenStreetMap

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