US: Army Corps of Engineers
The US Army Corps of Engineers, Portland District, is seeking public comment on the draft environmental assessment for the Columbia River dredging and spoil placement from river mile 3 to 106.5.
In 2003, the Corps identified 29 sites suitable for 20 years of dredged material placement after construction of the 43-foot deep-draft navigation channel. Since the completion of the deepened channel in 2010, some sites in the network have reached capacity or are nearing site capacity beyond what was evaluated by the Corps in 2003. Several upland dredged material placement sites have been removed from the list of available dredged material placement sites.
Reconfiguring the existing network with updated volume capacity, the use of new in-water sump and the addition of shoreline placement to an existing upland site will allow the Corps to improve strategic management of dredged material placement. The updated network will allow for greater flexibility for maintaining the navigation channel.
The draft environmental assessment has been prepared for the proposed federal action in accordance with the Council on Environmental Quality's National Environmental Policy Act regulations.
At the end of the public comment period, the Corps will consider all comments received or postmarked by the expiration date of this public notice and make a determination of significance of impacts resulting from the proposed action.
The draft assessment is available on the Corps web page in the Announcements section at: www.nwp.usace.army.mil/Media/Announcements.aspx
Direct questions or comments regarding the draft assessment to Greta Smith, Environmental Resources Branch, at email@example.com or by mail, postmarked by May 4 and sent to: District Engineer, U.S. Army Corps of Engineer District, Portland Attn: CENWP-PM-E / Greta Smith, P.O. Box 2946, Portland, OR 97208-2946.
In the response, refer to the public notice number (CENWP-PM-E-14-05), title and date. Should no response be received by the above closing date, a "no comment" response will be assumed.
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