Moderate

ZIP Code 51449

Calhoun County, Iowa — Lake City

25PSF (Ground Snow Load)
ModerateClassification

What This Means

Calhoun County, Iowa has a moderate ground snow load of 25 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 Code51449
CountyCalhoun
CityLake City
StateIowa (IA)
Ground Snow Load25 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): 25 PSF

Roof Snow Load: 17.5 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

51446 25 PSF Moderate 51447 25 PSF Moderate 51448 25 PSF Moderate 51450 30 PSF Moderate 51451 25 PSF Moderate 51452 25 PSF Moderate

Frequently Asked Questions

What is the ground snow load for ZIP code 51449?

ZIP code 51449 is in Calhoun County, Iowa, with a ground snow load of 25 PSF, classified as moderate per ASCE 7-22.

Is my roof strong enough for snow in 51449?

With a moderate ground snow load of 25 PSF, standard residential construction typically handles this load, but verify with your local building code.

What county is ZIP code 51449 in?

ZIP code 51449 is in Calhoun County, Iowa (IA).