Bridgeport, WV: what USGS's seismic model says

Under the seismic model IBC and ASCE 7 use for new construction, Bridgeport is Category B. Low seismic hazard. Code requires basic seismic detailing (bracing, connections) but no special structural system restrictions. Rank it against the rest of the country and Bridgeport sits at the 29th percentile for seismic hazard among 4,875 US cities.

Bridgeport by the numbers

The raw figures: peak ground acceleration 0.049g, short-period spectral response 0.101g, 1-second spectral response 0.05g. Among 26 West Virginia cities in this dataset, Bridgeport ranks 20 for seismic hazard, the 24th percentile within the state. About 9,397 people live in Bridgeport, West Virginia.

What a retrofit costs in Bridgeport

Outside California, no state-level retrofit grant equivalent to Brace + Bolt could be found for West Virginia. A typical retrofit still runs $5,000-$10,000 nationally, about $7,000 for a common single-family job.

Earthquake insurance for a Bridgeport home

Outside California, earthquake coverage is typically sold as an endorsement added to a standard homeowners policy, not a separate product - worth asking about directly when getting a home-insurance quote for a Bridgeport address.

More on how this number was built

The methodology guide covers exactly how USGS's public design-maps API produced Bridgeport's numbers. The guide to what a Seismic Design Category actually means covers why a category is never a substitute for an engineer's assessment of one specific house.