3. Sand Trap, Colorado Canal

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http://hdl.handle.net/10217/171344
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Abstract
Calculations, plans, map, and correspondence related to construction of a riffle-vortex sand trap for the Twin Lakes Canal Company's Colorado Canal
Author(s)
Parshall, Ralph L. (Ralph Leroy), 1881-1959; Smith, O. R.

Date
1930
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