Monitoring Dredged Material Disposal at Mouth of Columbia River, Washington/Oregon, USA
The entrance channel at the Mouth of the Columbia River requires annual dredging of 3 to 5 million cu m (3.9 to 6.5 million cu yd) of fine-to-medium sand to maintain the navigation channel at the authorized depth. The sandy dredged material is placed in EPA- approved Ocean Dredged Material Disposal...
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