Army Base Realignment and Closure

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Umatilla Chemical Depot


BRAC Summary: The Commission recommends Umatilla Army Depot for realignment. The military value of the installation was lower than other installations in the same category, primarily because it is a small single mission installation. The facilities at Umatilla also require upgrading. The mission and tenants of the installation can be relocated.

Property Description: The Depot is located on 19,729 acres in Umatilla and Morrow Counties in northeastern Oregon, approximately three miles south of the Columbia River and 180 miles east of Portland. The installation has approximately 1,347 structures of which 1,001 are Ammunition storage igloos. Many of the old WWII era buildings and facilities are in disrepair and are unusable. The UMCDF incinerator complex was built in 1997-2004 and is a modern industrial complex of buildings on the installation. The main incinerator buildings in this complex will be razed IAW the RCRA permits the remaining infrastructure of the site and buildings will remain for future development. There are over 194 miles of paved roads and 51 miles of light rail (no longer usable). The installation consists of an admin area, the ammunition maintenance and storage areas, general commodities warehouses, the Ammunition Demolition Area, and a range complex.

Last Page Update: July 14, 2026