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ABOUT US | Key Personnel

Herb Fricke, P.E., President/Chief Engineer, is a civil/environmental engineer with over 20 years of experience in the consulting engineering field, with primary emphasis on wastewater facilities planning and process engineering. He has managed a wide range of projects involving regional wastewater management, master planning and site development, transportation planning, and fisheries. Notable projects include: modifications to Portland’s Columbia Boulevard Wastewater Treatment Plant, site design for the Native American Student and Community Center at Portland State University, Oregon; wastewater management services for the Hoodsport to Skokomish region of Mason County, Washington; and several civil engineering and construction projects related to Portland’s light rail development program.
Lynn Harnisch, P.E., Senior Civil Engineer, has over 40 years of civil engineering, surveying and construction management experience. He is experienced in site development, with a particular focus on design of rural and urban streets, subdivisions and related street and infrastructure design. He has provided site and related infrastructure design on numerous residential, commercial, and institutional development projects for Indian Tribes and Nations throughout the Northwest, including a tribal administration building for the Spokane Tribe of Indians, a governance center for the Confederated Tribes of the Umatilla Reservation, Oregon; and several casinos for Tribes in Washington, Idaho, and California.
Paul Kluvers, P.E., S.E., Senior Structural Engineer, has over 30 years of experience as a civil and structural engineer. He is experienced in structural design for water and wastewater facilities, fish hatcheries and fish passage facilities, hospitals and clinics, schools and dormitories, and recreational facilities, many of which have incorporated “green building” components. Mr. Kluvers also has extensive experience in seismic analysis and rehabilitation of existing buildings and structures, most notably restoration of the historic longhouse at Celilo Village, Oregon; rehabilitation of the historic St. Mary’s School in Toledo, Oregon; a Roof Truss Inspection/Repair Program for nine buildings at Fort Lewis, Washington; and most recently structural analysis of irrigation flumes on the Crow Indian Reservation in Montana.
Dennis Petrequin, Principal Planner, has over 30 years of experience in land use and comprehensive planning in the Pacific Northwest, the majority of it in Indian country. He is experienced in land use and infrastructure planning, site feasibility studies, capital improvements programming, and environmental assessments and impact statements. He has been involved with the Bureau of Indian Affairs transportation planning and road improvement program for over 15 years, completing more than 300 transportation plans in his career. Recent experience includes transportation planning for reservations in Oregon, Washington and Arizona; a neighborhood plan for the Skokomish Reservation, Washington; and a cultural site feasibility study for the Coeur d’Alene Tribe in Idaho.

Cascade Design Professionals | 2780 SE Harrison St., Suite 104 - Milwaukie, OR 97222 | 503.652.9090 | Fax 503.652.9091

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