Moderate

ZIP Code 50478

Winnebago County, Iowa — Thompson

40PSF (Ground Snow Load)
ModerateClassification

What This Means

Winnebago County, Iowa has a moderate ground snow load of 40 PSF per ASCE 7-22. This load requires proper structural consideration during design. Roof framing, trusses, and connections should be engineered for this snow load. Ensure adequate drainage to prevent ponding.

Snow Load Details

ZIP Code50478
CountyWinnebago
CityThompson
StateIowa (IA)
Ground Snow Load40 PSF — Moderate
Classification Range21 - 40 PSF
Data QualityMeasured

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): 40 PSF

Roof Snow Load: 28 PSF

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

Winnebago 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

50475 35 PSF Moderate 50476 40 PSF Moderate 50477 35 PSF Moderate 50479 35 PSF Moderate 50480 40 PSF Moderate 50481 40 PSF Moderate

Frequently Asked Questions

What is the ground snow load for ZIP code 50478?

ZIP code 50478 is in Winnebago County, Iowa, with a ground snow load of 40 PSF, classified as moderate per ASCE 7-22.

Is my roof strong enough for snow in 50478?

With a moderate ground snow load of 40 PSF, standard residential construction typically handles this load, but verify with your local building code.

What county is ZIP code 50478 in?

ZIP code 50478 is in Winnebago County, Iowa (IA).