![](http://www.alamy.com/thumbs/6/ED32F9F1-EF60-45F0-90D7-0858900D8F1C/2AP8F12.jpg)
construction and improvement of roads, dikes and savings basins, gravel clay stabilization, leveling sand bed Date: October 1960 Keywords: construction and improvement of roads, dikes and savings basin, leveling sandbed, gravel clay stabilization
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Photo credit: © BNA Photographic / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: