DEA provided designs to replace two aging Interstate 84 bridges for the Oregon Department of Transportation in Troutdale, Oregon.
DEA is working closely with the city of Los Angeles on bridge improvements, including seismic retrofit, for First Street over Glendale Boulevard.
In 2010, Multnomah County, Oregon selected DEA to be the owner’s representative on the project to replace the Sellwood Bridge, an aging, deteriorating bridge which connects the Sellwood and Westmoreland neighborhoods in South Portland to the west side of the Willamette River.
DEA and the West Corridor Team provided the final engineering design for the Regional Transportation District’s West Corridor Light Rail Transit project.
The SR 520 Eastside Transit and HOV project was a three-mile-long roadway improvement project designed to reduce transit and high occupancy vehicle (HOV) travel times. DEA led portions of the roadway, structures, and drainage design, and also provided survey, traffic control design, and utility design services.