I-5 Interstate Bridge Trunnion Replacement
DEA provided designs to replace two aging Interstate 84 bridges for the Oregon Department of Transportation in Troutdale, Oregon.
Lower Mississippi River Precision Navigation Surveys
DEA Marine Services performed hydrographic surveys of approximately 260 miles of the lower Mississippi River in support of NOAA Office of Coast Survey’s Precision Charting Initiative.
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.
A Street Rail Safety Improvements
DEA led team provided planning, environmental, and engineering expertise to develop and screen alternatives for a new arterial road for Washington County from Tualatin-Sherwood Road to Tonquin Road, and east to connect with Grahams Ferry Road.
Mountain View Champions Park
DEA provided project management, master planning, final design, landscape architecture, civil engineering, and construction management for this two-acre community park.
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