Civil Engineering

For more than 30 years, DEA’s civil engineers have provided award-winning civil, transportation, and structural engineering services to public and private clients.


  • Flow management
  • Hydrologic/hydraulic modeling
  • Site civil
  • Storm drainage, detention, and treatment
  • Stormwater Pollution Prevention Plans
  • Systems mapping
  • Utilities
  • Water systems
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.

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