File:Ridge Route construction reinforcement 1919.jpg
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:14, 22 July 2014 | 3,470 × 2,384 (1.66 MB) | Junkyardsparkle | {{Information |Description={{en|On August 7, 1915, workers are placing reinforcing steel rods in concrete pavement during construction of the en:Ridge Route.}} |Source= http://www.dot.ca.gov/dist07/Publications/Inside7/story.php?id=296 |Date=1915... |
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