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File:Lower Van Norman Dam Damage 1971.jpg

Original file (1,400 × 1,391 pixels, file size: 1.19 MB, MIME type: image/jpeg)

Summary

Description
English: Lower Van Norman Reservoir Dam, Feb 10, 1971 — after the 1971 San Fernando earthquake in Los Angeles County, California.
  • Oblique aerial view looking east, over the northern San Fernando Valley.
  • Seismic shaking caused failure of dam: 1.) concrete dam facing and service road have slid with a portion of dam into the reservoir; 2.) there is an extensive fracturing on remaining front of earth-fill dam; 3.) previous water level can be seen on concrete facing; 4.) considerable water had been emptied by the time of the photo, however a second intake has toppled and is submerged.
Date
Source [1]
Author Robert E. Wallace, USGS

Licensing

Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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30 November 2005

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Date/TimeThumbnailDimensionsUserComment
current06:16, 21 August 2012Thumbnail for version as of 06:16, 21 August 20121,400 × 1,391 (1.19 MB)Mikenorton

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