Moderate

ZIP Code 50561

Calhoun County, Iowa — Lytton

30PSF (Ground Snow Load)
ModerateClassification

What This Means

Calhoun County, Iowa has a moderate ground snow load of 30 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 Code50561
CountyCalhoun
CityLytton
StateIowa (IA)
Ground Snow Load30 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): 30 PSF

Roof Snow Load: 21 PSF

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

Calhoun 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

50558 35 PSF Moderate 50559 40 PSF Moderate 50560 35 PSF Moderate 50562 35 PSF Moderate 50563 30 PSF Moderate

Frequently Asked Questions

What is the ground snow load for ZIP code 50561?

ZIP code 50561 is in Calhoun County, Iowa, with a ground snow load of 30 PSF, classified as moderate per ASCE 7-22.

Is my roof strong enough for snow in 50561?

With a moderate ground snow load of 30 PSF, standard residential construction typically handles this load, but verify with your local building code.

What county is ZIP code 50561 in?

ZIP code 50561 is in Calhoun County, Iowa (IA).