Professional Organizations

Keeping current and maintaining our profession’s relevance in society are two reasons why we are actively involved in professional organizations.  We value opportunities to exchange ideas with colleagues, and to plan how our associations can help industry and the public understand technical issues.

partners professional logos revised

SHN employees are members of these professional organizations.  An asterisk * indicates a leadership role, such as an officer or board position, or a standing committee member.

  • American Council of Engineering Companies
  • American Planning Association
  • American Society Civil Engineers
  • American Society Civil Engineers, North Coast Branch*
  • American Water Resources Association
  • American Water Works Association
  • Association of California Water Agencies, Region 1*
  • Association of Environmental Professionals
  • California Board of Professional Engineers, Land Surveyors, and Geologists*
  • California Water Environment Association
  • California Forestry Association (Calforests)
  • California Land Surveyors Association
  • California Stormwater Quality Association*
  • Engineers Without Borders, North Coast Professional Chapter
  • Geological Society of America
  • Humboldt Builders Exchange
  • Humboldt County Farm Bureau
  • Humboldt Friends of Geology*
  • International Society of Soil Mechanics and Foundation Engineers
  • Lake/Mendocino Engineers Association
  • North American Society for Trenchless Technology*
  • North Coast Chapter of the California Native Plant Society*
  • North Coast Stormwater Coalition
  • Professional Engineers of Oregon, Southwest Chapter
  • Water Environment Federation


Certifications and Associations


Corporate Office:

812 W. Wabash Ave.
Eureka, CA 95501-2138
Tel: 707-441-8855
Fax: 707-441-8877

Office Locations:

  • Arcata, CA
  • Eureka, CA
  • Fort Bragg, CA
  • Redding, CA
  • Willits, CA
  • Coos Bay, OR
  • Klamath Falls, OR

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