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Sources: CalTrans, Google Earth, Digital Globe, U.S. Geological Survey, ESRI, TeleAtlas. Digital images from Google Earth
Graphics reporting by Thomas Curwen; interactive by Lorena Iรฑiguez Elebee
Interactive
Tools of the trade
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Steep mountain slopes present a challenge to engineers and work crews trying to repair a damaged roadbed. Design strategies include building bridges and constructing retaining walls. Efficiency, costs and the demands of each location influence the final decision. Along Angeles Crest Highway, three strategies were employed at the six sites where the roadbed was undermined by last winter's storms.
Copyright © 2012, Los Angeles Times
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matthew1776 at 10:56 AM October 12, 2010
Nice work on the graphics!
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