Technical Specialties

Geographic Information Systems

Our highly skilled Geographic Information System (GIS) professionals provide essential information and analysis to many other technical services within DEA. Their years of experience, training, and specialized skills are supported by state-of-the-art GIS software and hardware tools. Our GIS team shares technical knowledge and experience, and collaborates on various projects requiring geographic information such as transportation planning and corridor studies, environmental planning and impact statements, habitat modeling, and land development.

Services

  • CAD/GIS integration
  • Data delivery in shapefile, coverage and geodatabase formats
  • Database design and implementation
  • Dynamic segmentation and route systems
  • Environmental planning and impact assessments
  • Fish and wildlife habitat studies
  • GPS/GIS integration
  • Habitat modeling
  • Hydrographic surveying
  • Land development and land use planning
  • Landscape design
  • Photogrammetry and remote sensing
  • Socioeconomic studies
  • Terrain modeling
  • Transportation corridor studies
  • Water resource and hydrologic applications
  • Watershed analysis
  • Wildlife population viability analysis
  • Wind energy site selection
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Featured DEA Project

Sea-Tac Bagwell 3D Laser Scanning/Modeling

DEA used a combination of state-of-the-art, high-accuracy laser scanning and conventional surveying methods to create 3-D models and 2-D composite drawings charting the placement and route of all pipes and tubes with at least a one-inch diameter.

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Featured DEA Project

Broadway Bridge Rehabilitation

DEA provided full preliminary engineering and construction engineering assistance for the rehabilitation of the 90-year-old Broadway Bridge in Portland, Ore.

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