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Director:
J.E. “Sam” Ryan, CBO

5280 Northwest Drive
Bellingham, Washington 98226
Telephone: (360) 676-6907
E-mail: pds@co.whatcom.wa.us

 
Seismic Loads

house

Seismic Loads

Every structure shall be designed to resist loads from an earthquake or seismic event for its' given seismic zone. Whatcom County is located in seismic zone D-1 in the West half of the county and D-0 in the East half. Design of the structure may be prescriptive per the Building Code, or if outside of the prescriptive requirements it shall be designed by a design professional and they shall provide the design criteria, calculations, and professional stamp and signature on the calculations packet and plans where applicable.

For additional information you may go to the USGS website http://earthquake.usgs.gov/hazards/designmaps/