Light

ZIP Code 97009

Clackamas County, Oregon — Boring

10PSF (Ground Snow Load)
LightClassification

What This Means

Clackamas County, Oregon has a light ground snow load of 10 PSF per ASCE 7-22. At this level, most standard residential roofs are designed to handle the load without issue. However, flat or low-slope roofs should still be checked for drifting and sliding snow.

Snow Load Details

ZIP Code97009
CountyClackamas
CityBoring
StateOregon (OR)
Ground Snow Load10 PSF — Light
Classification Range1 - 20 PSF
Data QualityElevation estimated

Source: ASCE 7-22 ground snow load polygons via ArcGIS

Roof Snow Load Calculator

ASCE 7-22 flat roof formula:  pf = 0.7 × Ce × Ct × Is × pg

Your ground snow load (pg): 10 PSF

Roof Snow Load: 7 PSF

ⓘ Simplified estimate for flat roofs. Sloped roofs, drift zones, and unbalanced loads need additional calculations. Consult a structural engineer for final design.

Clackamas County Snow Load Map

Counties colored by snow load classification. Gray = No Load, Blue = Light, Amber = Moderate, Orange = Heavy, Red = Extreme, Purple = Case Study.

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97006 10 PSF Light 97007 10 PSF Light 97008 10 PSF Light 97010 CS Case Study 97011 CS Case Study

Frequently Asked Questions

What is the ground snow load for ZIP code 97009?

ZIP code 97009 is in Clackamas County, Oregon, with a ground snow load of 10 PSF, classified as light per ASCE 7-22.

Is my roof strong enough for snow in 97009?

With a light ground snow load of 10 PSF, standard residential construction typically handles this load, but verify with your local building code.

What county is ZIP code 97009 in?

ZIP code 97009 is in Clackamas County, Oregon (OR).