Bruce St. John
City of Atascadero


Bill Fitzpatrick
Cal Poly San Luis Obispo
Vice President


Elizabeth Szwabowski
County of San Luis Obispo


Devon Kuhnle
City of Paso Robles


Charles Dickey
City of Atascadero
Immediate Past President

CALBO is a nonprofit 501(c)6 organization dedicated to promoting public health and safety in building construction through responsible legislation, education and building code development.

Allan Block Corporation presents: A Segmental Retaining Wall Seminar

Presenter: Chad Julius, P.E., LEED, Allan Block Corporation

Seminar Content includes the following topics:

  • Advantages of SRWs
  • Basics of retaining wall design
  • How geogrid works in the soil
  • Why retaining walls fail
  • Proper Construction methods
  • AB Walls design software tutorial.

Chad is a dynamic and knowledgeable presenter that always brings insights and solutions to his presentations. If you deal with segmented walls, this is a seminar you want to attend.

  • Morning Refreshments/Snacks will be provided
  • 4 hours of CEU credit
  • ONLINE Registration REQUIRED by 5:00 PM, Wednesday, June 5th


The International Code Council (ICC) is a membership association dedicated to building safety and fire prevention. The ICC develops the codes used to construct residential and commercial buildings, including homes and schools. Most U.S. cities, counties and states that adopt codes choose the International Codes developed by the ICC.