Codes and Standards

Building plans with ruler

Corvallis Construction Codes and Design Assumptions

There are several codes which regulate construction of buildings and related structures in the City of Corvallis. Many of these codes are statewide codes adopted through the Oregon Building Codes Division and locally administered by the Development Services Division. Additional codes are locally adopted and administered and may differ from those utilized by other jurisdictions. The following are links to these codes:

Design Assumptions for Corvallis
Basic Wind Speed

‘V’, for Risk Category II = 96 mph, exposure B (Must also meet all design criteria of OSSC section 1609.3)

Climate Zone Climate Zone 4
Snow Loading 25 psf (Must also meet all 7 design criteria of OSSC 1603.1.3, but in no case less than 20 psf)
Frost Depth 12 inches below grade
Soil Bearing Capacity Varies
Seismic Zone D1 Residential, D Commercial (Commercial must meet all design criteria of OSSC 1613.2.3)
Seismic Coefficient Based on soil type
Soil Profile Type Varies