Battle Ground's Seismic Design Category, explained

Battle Ground 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. Nationally, Battle Ground ranks above 86% of the 4,875 cities in this dataset for seismic hazard - the 86th percentile.

How Battle Ground compares

USGS's underlying values for Battle Ground: 0.347g peak ground acceleration, 0.773g at short period, 0.356g at 1 second. Within Washington alone, Battle Ground ranks 92 of 125 cities by seismic hazard - the 27th percentile in-state. Battle Ground has a population of about 22,959.

Retrofit economics for Battle Ground

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 Washington 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 Washington.

What this means for insurance

A Battle Ground 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 Battle Ground's figures come from

Battle Ground'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 Battle Ground.