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