Don Olsen, PE, PG, CEG, CHG – General Manager, Yuba City and Chico Offices

Don Olsen
Don Olsen

Don Olsen, PE, PG, CEG, CHG, is a principal of Holdrege & Kull and General Manager of the Chico and Yuba City offices. He has been in the industry for 39 years, the last 18 of which have been with H&K. His experience includes geotechnical engineering, civil engineering, engineering geology, hydrogeology, and construction management. He is a Subject Matter Expert with the California Board for Professional Engineers, Geologists and Land Surveyors and assists with preparation and grading of exam questions.


  • M.S. in Geology, Civil Engineering (geotechnical emphasis), San Jose State University
  • B.S. in Engineering Geology, San Diego State University


  • Professional Engineer, CA No. 49514
  • Professional Geologist, CA No. 5329
  • Certified Engineering Geologist, CA No. 1853
  • Certified Hydrogeologist, CA¬†271


  • Civil and geotechnical engineering design
  • Construction project management
  • Landfill final cover and base liner systems
  • Groundwater resource evaluation
  • Excavation dewatering
  • Contaminant transport modeling
  • Elastic and consolidation settlement analysis
  • Pier and pile foundations
  • Cell tower foundations
  • Retaining walls


  • Geoprofessional Business Association
  • American Society of Civil Engineers
  • Association of Engineering