Ocean Dredged Material Disposal Site Database

DOTS
ODMDS District code USACE District USEPA Region CYear Project type Work type Disposal Method CY3 Dredged Sea area Start date End date DredgeEventID LC Site No. Disposal site status
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2012 Federal Maintenance Hopper 1,722,918 Mouth of the Columbia River Pacific Ocean 07/10/2012 09/28/2012 7 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2008 Federal Maintenance Hopper 2,354,700 Mouth of the Columbia River Pacific Ocean 07/30/2008 11/08/2008 2721 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2010 Federal Maintenance Hopper 2,290,900 Mouth of the Columbia River Pacific Ocean 06/21/2010 10/15/2010 2806 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2011 Federal Maintenance Hopper 1,485,062 Mouth of the Columbia River Pacific Ocean 08/20/2011 10/22/2011 2883 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2013 Federal Maintenance Hopper 1,833,535 Mouth of the Columbia River Pacific Ocean 06/01/2013 11/01/2013 2934 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2014 Federal Maintenance Hopper 1,536,475 Mouth of the Columbia River Pacific Ocean 08/15/2014 10/14/2014 3178 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2015 Federal Maintenance Hopper 1,161,206 Mouth of the Columbia River Pacific Ocean 07/15/2015 10/09/2015 3250 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2016 Federal Maintenance Hopper 1,669,688 Mouth of the Columbia River Entrance Pacific Ocean 07/25/2016 10/22/2016 4243 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2017 Federal Maintenance Hopper 1,283,906 Mouth of the Columbia River Entrance Pacific Ocean 07/20/2017 09/30/2017 4428 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2018 Federal Maintenance Hopper 1,091,218 Mouth of the Columbia River Pacific Ocean 08/01/2018 10/31/2018 4563 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2019 Federal Maintenance Hopper 1,653,801 Mouth of the Columbia River Pacific Ocean 08/18/2019 10/11/2019 4835 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2009 Federal Maintenance Hopper 1,200,300 Mouth of the Columbia River Pacific Ocean 06/30/2009 09/18/2009 2377 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2005 Federal Maintenance Hopper 2,620,000 Mouth of the Columbia River Pacific Ocean 06/01/2005 10/17/2005 2284 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2006 Federal Maintenance Hopper 1,832,900 Mouth of the Columbia River Pacific Ocean 07/01/2006 10/14/2006 2515 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2004 Federal Maintenance Hopper 3,036,100 Mouth of the Columbia River Pacific Ocean 06/12/2004 08/21/2004 2565 US-228 Open, Final designated ODMDS
Mouth of the Columbia River Shallow Water Site (SWS) NWP Portland R10 2007 Federal Maintenance Hopper 2,108,600 Mouth of the Columbia River Pacific Ocean 2594 US-228 Open, Final designated ODMDS