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 A NWP Portland R10 1986 Federal Maintenance Hopper 3,382,700 Mouth of the Columbia River Pacific Ocean 05/26/1986 09/30/1986 93 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1977 Federal Maintenance Hopper 2,867,393 Mouth of the Columbia River Pacific Ocean 04/21/1977 10/10/1977 312 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1976 Federal Maintenance (N/I) 2,574 Mouth of the Columbia River Pacific Ocean 07/01/1976 378 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1978 Federal Maintenance Hopper 188,200 Mouth of the Columbia River Pacific Ocean 04/14/1978 10/03/1978 415 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1981 Federal Maintenance Hopper 9,200 Mouth of the Columbia River Pacific Ocean 05/04/1981 10/22/1981 701 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1979 Federal Maintenance Hopper 89,300 Mouth of the Columbia River Pacific Ocean 05/12/1979 10/14/1979 741 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1982 Federal Maintenance Hopper 22,229 Mouth of the Columbia River Pacific Ocean 05/11/1982 08/28/1982 751 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1980 Federal Maintenance Hopper 11,142 Mouth of the Columbia River Pacific Ocean 08/01/1980 09/30/1980 827 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1983 Federal Maintenance Hopper 200,000 Mouth of the Columbia River Pacific Ocean 08/06/1983 09/30/1983 874 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1984 Federal Maintenance Hopper 4,046,300 Mouth of the Columbia River Pacific Ocean 05/02/1984 10/19/1984 1009 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1985 Federal Maintenance Hopper 3,203,200 Mouth of the Columbia River Pacific Ocean 05/06/1985 10/30/1985 1064 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1988 Federal Maintenance Hopper 1,445,700 Mouth of the Columbia River Pacific Ocean 05/28/1988 09/30/1988 1159 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1989 Federal Maintenance Hopper 1,102,000 Mouth of the Columbia River Pacific Ocean 03/19/1989 10/15/1989 1240 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1990 Federal Maintenance Hopper 2,302,900 Mouth of the Columbia River Pacific Ocean 06/15/1990 10/29/1990 1254 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1987 Federal Maintenance Hopper 1,209,400 Mouth of the Columbia River Pacific Ocean 05/06/1987 09/30/1987 2919 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1992 (N/I) Hopper 874,700 Mouth of the Columbia River Pacific Ocean 2995 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1991 Federal Maintenance Hopper 958,000 Mouth of the Columbia River Pacific Ocean 05/20/1991 08/13/1991 1596 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1997 Federal Maintenance Hopper 332,000 Mouth of the Columbia River Pacific Ocean 07/14/1997 08/12/1997 1668 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1994 Federal Maintenance Hopper 1,002,700 Mouth of the Columbia River Pacific Ocean 07/01/1994 08/16/1994 1925 US-190 Closed, Final designated ODMDS