Creswell's Seismic Design Category, explained

Creswell carries Seismic Design Category D under USGS's ASCE 7-16 model. High seismic hazard - this is the category most of coastal California, the Pacific Northwest, and other active fault regions fall into. Code mandates significant seismic detailing and restricts irregular structural configurations. This is the category the Brace + Bolt scope (cripple-wall bracing, foundation bolting) is built for. Rank it against the rest of the country and Creswell sits at the 85th percentile for seismic hazard among 4,875 US cities.

Creswell by the numbers

USGS's underlying values for Creswell: 0.312g peak ground acceleration, 0.655g at short period, 0.382g at 1 second. Within Oregon alone, Creswell ranks 59 of 80 cities by seismic hazard - the 27th percentile in-state. Creswell has a population of about 5,615.

Bracing and bolting: the actual cost

A full earthquake retrofit typically runs $5,000-$10,000 nationally (around $7,000 typical), driven mainly by house size and foundation type, not by Oregon specifically. California's Earthquake Brace + Bolt grant, which covers a large share of this cost, is a California-only program and does not apply in Oregon.

What this means for insurance

A Creswell homeowner cannot buy a standalone earthquake policy in most cases - it is added to an existing homeowners policy as an endorsement, so the place to start is a regular home-insurance quote.

Where Creswell's figures come from

Creswell's Category D and every number above trace to USGS's own ASCE 7-16 Design Maps service - see the methodology guide. See the category explainer for what Category D does and doesn't tell you about Creswell.