Moderate

ZIP Code 48421

Lapeer County, Michigan — Columbiaville

30PSF (Ground Snow Load)
ModerateClassification

What This Means

Lapeer County, Michigan 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 Code48421
CountyLapeer
CityColumbiaville
StateMichigan (MI)
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.

Lapeer 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

48418 25 PSF Moderate 48419 30 PSF Moderate 48420 30 PSF Moderate 48422 25 PSF Moderate 48423 25 PSF Moderate

Frequently Asked Questions

What is the ground snow load for ZIP code 48421?

ZIP code 48421 is in Lapeer County, Michigan, with a ground snow load of 30 PSF, classified as moderate per ASCE 7-22.

Is my roof strong enough for snow in 48421?

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 48421 in?

ZIP code 48421 is in Lapeer County, Michigan (MI).