Professional Registrations and Affiliations

Registered Professional Civil Engineer in California, Oregon, and Washington (current as of 2020). First registration was in State of California 1989.  Previous States of registration, which are now expired, included: Arizona, Montana, Wyoming, New Mexico, Kansas, Florida, and Pennsylvania.

Registered Geotechnical Engineer in Oregon (current as of 2020).

American Society of Civil Engineers (and the associated Geo-Institute) for over 37 years (current as of 2020).

American Society for Testing and Materials (member of committee D35 for > 25 years – now retired from this society).

North American Geosynthetics Society and International Geosynthetics Society (current as of 2020).