Ray Bottenberg
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Vanishing Portland
by
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published
2008
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2 editions
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Bridges of Portland
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published
2007
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4 editions
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Grand Coulee Dam
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published
2008
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4 editions
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Bridges of the Oregon Coast
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published
2006
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3 editions
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Vanishing Portland 2010 Calendar
by
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published
2009
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Vanishing Portland [OR]
by |
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“[A] pile driver was improvised by mounting a large steam donkey engine, a steam hammer, and a timber tower on a barge.”
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“The funnel-shaped devices are tremie tubes, which are apparently being used to avoid having the wet concrete free fall into the forms where the 4-cubic-yard buckets could not fit to pour directly.”
― Grand Coulee Dam
― Grand Coulee Dam
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