Harper Houf Peterson Righellis (HHPR)
Charles Harper, Dan Houf, Ron Peterson
Award winning firm of civil and structural engineers, planners, landscape architects, surveyors, and natural resource scientists who provide integrated services for transportation facilities, utilities, water resources, parks, and site development.
Harper Houf Peterson Righellis Inc.
205 SE Spokane Street, Suite 200, Portland OR 97202
Established in 1990
Hours Monday - Friday 8am-5pm