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.
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.
SR 530 Oso Slide Repair
Following a landslide in Oso on March 22, 2014, DEA’s Marine Services Division assisted in emergency recovery and mapping operations in Landslide Lake and in the North Fork of Stillaguamish River.
SR 89A, Pumphouse Wash to Overlook Topographic Survey
DEA’s survey team performed a control survey and collected 25 miles of data along SR89A from Sedona to Flagstaff using DEA’s mobile laser scanning system.
Perris Dam Seismic Remediation
DEA surveyors are working together with the California Department of Water Resources to provide survey monitoring services during seismic repairs of the Perris Dam at California’s Lake Perris State Recreation Area.
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