USACE Walla Walla District Hydrographic Surveying Services
DEA has a long history of providing hydrographic and land surveying services to the Walla Walla District, including several surveys on the Columbia, Snake, and Clearwater Rivers.
Upper Columbia River Remedial Investigation and Feasibility Study
Since 2018, DEA Marine Services has provided hydrographic surveying and geoscientific consulting services as part of the Upper Columbia River Remedial Investigation and Feasibility Study.
DEA Inc.
- Copy ENR California’s Best Projects 2019 – Award of Merit November 3, 2020
- ENR California’s Best Projects 2019 – Award of Merit November 3, 2020
- External Link November 3, 2020