Harper Houf Peterson Righellis Inc.
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Lacamas North Shore Trail Concept, Environmental Review, Camas, Washington Boeckman Creek, Wilsonville, Oregon Rail Overpass Phase III, Port of Ridgefield, Washington Crystal Springs Creek Restoration, Portland, Oregon NE Friberg Street-Goodwin Road Wetland Mitigation and Monitoring, Camas, Washington Menlo Drive Natural Area Enhancement, Beaverton, Oregon Mill Plain Boulevard Street Improvements, Vancouver, Washington Rock Creek Bank Rehabilitation, Clackamas County, Oregon Westmoreland Park Stream Determination, Portland, Oregon Woodcock Creek Modifications, Clackamas County, Oregon
Natural Resources and Environmental Permitting

Our natural resource scientists help preserve, protect, and/or enhance the natural and built environment’s value by working as a part of multi-discipline teams or directly for public or private clients. Our scientists monitor the latest changes to local, state, and federal permitting requirements, and they maintain strong relationships with permitting agencies to facilitate quick review times. Our collaborative approach benefits both our clients and the design process, while contributing to the long-term value of our region’s natural resources.

Services
  • Goal 5 Local Natural Resource and Habitat Regulations
  • Clean Water Act Section 404 Nationwide and Individual Permits
  • Clean Water Act Section 401 Water Quality Certifications
  • Sole Source Aquifer Protection (EPA Safe Drinking Water Act)
  • Migratory Bird Treaty Act (MBTA)
  • Endangered Species Act
  • SEPA (State Environmental Policy Act)
  • NEPA (National Environmental Policy Act)
  • Natural Environment Resource and Impact Assessment
  • Built Environment (Environmental Justice Resource and Impact Assessment)
  • Wetland Reconnaissance
  • Wetland Delineation
  • OHWM Stream, Lake, and Marine
  • Vegetation Surveys (including trees and rare plants)
  • Mitigation (including white oak mitigation)
  • Vegetation Restoration
  • Invasive Species Control

Other Services

Civil Engineering
Structural Engineering
Land Surveying
Planning
Landscape Architecture
Visual Communications

Offices

Portland, OR
Salem, OR
Eugene, OR
Bend, OR
Vancouver, WA

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