• PE
Senior Associate
Civil Engineer
26 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
Hillsboro Fire StationsSpeedway Commerce CenterClackamas County Public Services BuildingStadium Fred Meyer Store Remodel & ExpansionSalem Fire Stations #5, 7, 10, and 11Rivergate Corporate CenterFred Meyer Prototype Rollout24 Hour FitnessOrganically Grown