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 3382700 Columbia River at the Mouth FNP Pacific Ocean 5/26/1986 9/30/1986 93 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1977 Federal Maintenance Hopper 2867393 Columbia River at the Mouth FNP Pacific Ocean 4/21/1977 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) 2574 Columbia River at the Mouth FNP Pacific Ocean 7/1/1976 N/I 378 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1978 Federal Maintenance Hopper 188200 Columbia River at the Mouth FNP Pacific Ocean 4/14/1978 10/3/1978 415 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1980 Federal Maintenance Hopper 11142 Columbia River at the Mouth FNP Pacific Ocean 8/1/1980 9/30/1980 827 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1981 Federal Maintenance Hopper 9200 Columbia River at the Mouth FNP Pacific Ocean 5/4/1981 10/22/1981 701 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1979 Federal Maintenance Hopper 89300 Columbia River at the Mouth FNP Pacific Ocean 5/12/1979 10/14/1979 741 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1982 Federal Maintenance Hopper 22229 Columbia River at the Mouth FNP Pacific Ocean 5/11/1982 8/28/1982 751 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1983 Federal Maintenance Hopper 200000 Columbia River at the Mouth FNP Pacific Ocean 8/6/1983 9/30/1983 874 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1984 Federal Maintenance Hopper 4046300 Columbia River at the Mouth FNP Pacific Ocean 5/2/1984 10/19/1984 1009 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1985 Federal Maintenance Hopper 3203200 Columbia River at the Mouth FNP Pacific Ocean 5/6/1985 10/30/1985 1064 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1988 Federal Maintenance Hopper 1445700 Columbia River at the Mouth FNP Pacific Ocean 5/28/1988 9/30/1988 1159 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1994 Federal Maintenance Hopper 1002700 Columbia River at the Mouth FNP Pacific Ocean 7/1/1994 8/16/1994 1925 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1989 Federal Maintenance Hopper 1102000 Columbia River at the Mouth FNP Pacific Ocean 3/19/1989 10/15/1989 1240 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1990 Federal Maintenance Hopper 2302900 Columbia River at the Mouth FNP Pacific Ocean 6/15/1990 10/29/1990 1254 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1991 Federal Maintenance Hopper 958000 Columbia River at the Mouth FNP Pacific Ocean 5/20/1991 8/13/1991 1596 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1997 Federal Maintenance Hopper 332000 Columbia River at the Mouth FNP Pacific Ocean 7/14/1997 8/12/1997 1668 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1987 Federal Maintenance Hopper 1209400 Columbia River at the Mouth FNP Pacific Ocean 5/6/1987 9/30/1987 2919 US-190 Closed, Final designated ODMDS
Mouth of Columbia River Material Site A NWP Portland R10 1992 (N/I) (N/I) Hopper 874700 Mouth of the Columbia River Pacific Ocean N/I N/I 2995 US-190 Closed, Final designated ODMDS