• PE
Senior Associate
Civil Engineer
28 Years
Bob Frentress

Bob Frentress joined Mackenzie in 1993 after earning a B.S. in civil engineering from Portland State University. He provides street design, storm drainage, sanitary sewerage, water systems, earthwork analysis, and grading design for commercial, industrial, civic, high tech, and residential projects. Bob works both in support of Mackenzie's architects and independently, either contracted directly with the owner/developer for site services or as a subconsultant to an outside architect. He has served as project manager for a range of small retail and commercial site design projects.

"I define a great design as the lowest-cost design that is functional, approvable, and liked by the client."

Featured Projects
Stadium Fred Meyer Store Remodel & ExpansionRivergate Corporate CenterClackamas County Public Services BuildingHillsboro Fire StationsSpeedway Commerce CenterOrganically GrownSalem Fire Stations #5, 7, 10, and 11Fred Meyer Prototype Rollout24 Hour Fitness