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 Columbia River Material Site B NWP Portland R10 1986 Federal Maintenance Hopper 2,033,500 Mouth of the Columbia River Pacific Ocean 05/26/1986 09/30/1986 92 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1976 Permit Maintenance Scow 124,000 Port of Astoria, Columbia River Pacific Ocean 06/07/1976 12/16/1976 116 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1977 Federal Maintenance Hopper 1,868,579 Mouth of the Columbia River Pacific Ocean 04/21/1977 10/10/1977 311 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1976 Federal Maintenance Hopper 3,136,854 Mouth of the Columbia River Pacific Ocean 05/16/1976 10/01/1976 377 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1976 Federal Capital Hopper 531,402 Port of Astoria turning basin, Columbia River Pacific Ocean 06/30/1976 11/30/1976 380 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1978 Federal Maintenance Hopper 3,100 Mouth of the Columbia River Pacific Ocean 04/14/1978 10/03/1978 414 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1981 Federal Maintenance Hopper 2,263,999 Mouth of the Columbia River Pacific Ocean 05/04/1981 10/22/1981 700 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1982 Federal Maintenance Hopper 643,429 Mouth of the Columbia River Pacific Ocean 05/11/1982 08/28/1982 750 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1980 Federal Maintenance Hopper 118,686 Mouth of the Columbia River Pacific Ocean 04/15/1980 08/30/1980 828 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1983 Federal Maintenance Hopper 1,124,567 Mouth of the Columbia River Pacific Ocean 08/06/1983 09/30/1983 873 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1984 Federal Maintenance Hopper 3,901,800 Mouth of the Columbia River Pacific Ocean 05/02/1984 10/19/1984 1008 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1985 Federal Maintenance Hopper 1,330,100 Mouth of the Columbia River Pacific Ocean 05/06/1985 10/30/1985 1063 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1985 Federal Maintenance Hopper 18,800 Columbia and Lower Willamette Rivers Pacific Ocean 09/18/1985 10/19/1985 1066 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1985 Federal Maintenance Hopper 29,500 Baker Bay, Columbia River, WA Pacific Ocean 10/01/1985 10/17/1985 1067 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1985 Federal Maintenance Hopper 500 Skipanon River Pacific Ocean 10/05/1985 10/05/1985 1068 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1989 Federal Maintenance Hopper 2,863,600 Mouth of the Columbia River Pacific Ocean 03/19/1989 09/22/1989 1241 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1990 Federal Maintenance Hopper 1,162,000 Mouth of the Columbia River Pacific Ocean 05/03/1990 10/29/1990 1255 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1988 Federal Maintenance Hopper 4,185,100 Mouth of the Columbia River Pacific Ocean 05/28/1988 10/23/1988 1276 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1987 Federal Maintenance Hopper 1,593,500 Mouth of the Columbia River Pacific Ocean 05/06/1987 09/30/1987 2918 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1995 (N/I) Hopper 2,480,664 Mouth of the Columbia River Pacific Ocean 2996 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1996 (N/I) Hopper 1,963,145 Mouth of the Columbia River Pacific Ocean 2997 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1997 (N/I) Hopper 326,824 Mouth of the Columbia River Pacific Ocean 2998 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1994 Federal Maintenance Hopper 408,900 Mouth of the Columbia River Pacific Ocean 05/28/1994 06/20/1994 1378 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1991 Federal Maintenance Hopper 1,715,100 Mouth of the Columbia River Pacific Ocean 05/20/1991 10/29/1991 1597 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1995 Federal Maintenance Hopper 2,480,700 Mouth of the Columbia River Pacific Ocean 1685 US-043 Closed, Final designated ODMDS
Mouth of Columbia River Material Site B NWP Portland R10 1993 Federal Maintenance Hopper 1,629,000 Mouth of the Columbia River Pacific Ocean 05/29/1993 1698 US-043 Closed, Final designated ODMDS