Moderate

ZIP Code 20602

Charles County, Maryland — Saint Charles

25PSF (Ground Snow Load)
ModerateClassification

What This Means

Charles County, Maryland 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 Code20602
CountyCharles
CitySaint Charles
StateMaryland (MD)
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.

Charles 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

20601 25 PSF Moderate 20603 25 PSF Moderate 20604 25 PSF Moderate

Frequently Asked Questions

What is the ground snow load for ZIP code 20602?

ZIP code 20602 is in Charles County, Maryland, with a ground snow load of 25 PSF, classified as moderate per ASCE 7-22.

Is my roof strong enough for snow in 20602?

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 20602 in?

ZIP code 20602 is in Charles County, Maryland (MD).