After 20 years of planning and work, the first 103 miles of the Columbia River have been deepened three feet to allow ocean-going ships …
By Kathy Korengel ( tri-cityherald )
[mappress]
Source: tri-cityherald, February 2, 2011;
News
about 15 years ago
USA: Columbia River Dredging to Allow Ocean-Going Ships to Pass
After 20 years of planning and work, the first 103 miles of the Columbia River have been deepened three feet to allow ocean-going ships … By Kathy Korengel (tri-cityherald) [mappress] Source: tri-cityherald, February 2, 2011;
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