Light

ZIP Code 59348

Powder River County, Montana — Sonnette

10PSF (Ground Snow Load)
LightClassification

What This Means

Powder River County, Montana 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 Code59348
CountyPowder River
CitySonnette
StateMontana (MT)
Ground Snow Load10 PSF — Light
Classification Range1 - 20 PSF
Data QualityCounty fallback

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.

Powder River 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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Nearby ZIP Codes

59345 30 PSF Moderate 59347 25 PSF Moderate 59349 25 PSF Moderate 59351 30 PSF Moderate

Frequently Asked Questions

What is the ground snow load for ZIP code 59348?

ZIP code 59348 is in Powder River County, Montana, with a ground snow load of 10 PSF, classified as light per ASCE 7-22.

Is my roof strong enough for snow in 59348?

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 59348 in?

ZIP code 59348 is in Powder River County, Montana (MT).