Founded in Portland, Oregon in 1990, Harper Houf Peterson Righellis Inc. (HHPR) is a firm of engineers, planners, landscape architects, and surveyors who provide comprehensive, integrated services for transportation facilities; site development; utility infrastructure; water resources; storm water facilities; parks; and residential, commercial, institutional, and industrial site development.
With a staff of over 100, we serve clients across Oregon and southwest Washington from our offices in Portland, Salem, Bend and Vancouver Washington
