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Interstate 5: Victory Boulevard to Lombard Street

Interstate 5: Victory Boulevard to Lombard Street

DEA was part of a team of experienced and motivated engineering firms and construction contractors assembled by the Oregon Department of Transportation to address congestion and safety issues on this key 1.3 mile section of I-5 between the Victory Boulevard and Lombard Street interchanges in Portland.

Arapahoe Road Corridor Study

Arapahoe Road Corridor Study

DEA was selected to conduct the corridor study of Arapahoe Road, the major east-west travel link from southeast Denver to employment and retail centers along Interstate 25, including the Denver Tech Center.

The Arapahoe/Parker Interchange Final Design

The Arapahoe/Parker Interchange Final Design

DEA was the lead design firm for the final phase of construction of Denver’s Arapahoe/Parker Interchange project, the culmination of 10 years of collaborative efforts between the Colorado Department of Transportation (CDOT), Arapahoe County, and other local jurisdictions.