Surveying and Geomatics


Bonneville Power Administration Survey Services

Various Locations

DEA has provided surveying services to the Bonneville Power Administration (BPA) since 1984. In 2009, BPA awarded DEA an additional five-year master services agreement to provide land surveying services on various projects in the Pacific Northwest. DEA has surveyed more than 5,000 miles of access roads for transmission lines. Data gathered included metadata for culverts, gates, and related facilities for entry into BPA’s Geographic Information System (GIS) database.

Additional services provided by DEA include:

  • Geodetic control surveys
  • Transmission line surveys
  • Substation surveys
  • Topographic surveys
  • Crossing studies
  • Tower staking
  • Upgrade studies
  • Access road surveys
  • Boundary surveys
  • Beam paths (for microwave communications)
  • Resource grade GPS mapping
  • High-definition laser scanning