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Clallam County, Washington
Wind, Snow and Seismic Zones for Clallam County
| Area | Wind Speed | Exposure | Average Snow Load (≤600' elev) * | Seismic Design Category |
| ASCE 7-10 IBC 2015 | GROUND | |||
| Port Angeles | 130 MPH | C/(D**) | 25 PSF | D2 |
| Diamond Point | 130 MPH | C/(D**) | 25 PSF | D2 |
| Sequim | 130 MPH | C/(D**) | 25 PSF | D2 |
| Beaver | 140 MPH | C | 30 PSF | D2 |
| Pillar Point | 140 MPH | C/(D**) | 25 PSF | D2 |
| Clallam Bay/Sekiu | 140 MPH | C/(D**) | 25 PSF | D2 |
| Neah Bay | 150 MPH | C/(D**) | 30 PSF | D1 |
| La Push | 150 MPH | C/(D**) | 25 PSF | D2 |
| Forks | 140 MPH | C | 30 PSF | D2 |
| Lake Dawn/Foothills | 130 MPH | C | * | D2 |
Soil bearing pressure: 1500# p.s.f.
Frost depth: 12" min.
* For elevations greater than 600 ft above sea level, snow load = elev x 0.04.
Example: 800 ft elevation = (800 x 0.04 = 32 psf snow load).
Roof snow load shall not be reduced below 30 psf in Beaver, Forks or Neah Bay and not below 25 psf for the remainder of Clallam County.
** All areas within 600 feet of the marine shoreline are exposure "D", and/or a body of water 5000 feet (.95 of a mile) long, are exposure D.