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Welcome to the Tenneson Engineering Corporation  

The Tenneson Engineering Corporation is an Oregon-based professional civil engineering and land surveying firm providing services to the Mid-Columbia area. The firm’s area of expertise includes civil public works-type projects of all kinds, especially oriented to the smaller communities in our service area which cannot afford full-time staffs.

Civil Engineering
Structural Engineering
Land Surveying
Other Services
  • Water Systems
  • Sewer Systems
  • On-Site Septic Design
  • Site Development
  • Small Bridges
  • Earthfill Dams
  • Site Plans
  • Stormwater Plans
  • Structural Design
  • Structural Investigations
  • New Construction / Alterations
  • Retaining Walls
  • Foundation Inspections
  • Building Permit
  • ALTA
  • Land Divisions
  • Property Line Adjustments
  • Rights-of-way
  • Construction Staking and Layout
  • Boundary Surveys
  • Subdivision Plats
  • Water Rights
  • Construction Management
  • Construction Inspection
  • Land Use Planning
  • Materials Testing
  • Drafting
  • Printing/Copying