Council asks structural-engineering members to research seismic-category mapping

Aug 12, 2026

Councilors noted objections to a proposed seismic-design-category map change (possible new Category E on the Olympic Peninsula) and asked a structural-engineering member to convene a small working group to analyze the mapping and report back at a future session.

The full story

A public commenter and several council members questioned whether recently proposed seismic-design-category maps correctly flagged new Category E areas along parts of the Olympic Peninsula. Staff summarized the concern, saying the change would be limited geographically but significant for affected locations.

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